U.S. patent application number 13/600595 was filed with the patent office on 2013-01-31 for female enteral coupling.
This patent application is currently assigned to NEOMED, INC.. The applicant listed for this patent is Mark Martin COSTELLO, Benjamin Martin DAVIS, Tony DOHERTY, Aaron N. INGRAM, Anthony C. LAIR. Invention is credited to Mark Martin COSTELLO, Benjamin Martin DAVIS, Tony DOHERTY, Aaron N. INGRAM, Anthony C. LAIR.
Application Number | 20130030379 13/600595 |
Document ID | / |
Family ID | 46829919 |
Filed Date | 2013-01-31 |
United States Patent
Application |
20130030379 |
Kind Code |
A1 |
INGRAM; Aaron N. ; et
al. |
January 31, 2013 |
FEMALE ENTERAL COUPLING
Abstract
A container for collecting, transporting, storing, delivering
and dispensing fluid. The container has a hollow tube with an outer
circumference diameter and is configured to receive a plunger. The
container also has a circumferential seal assembly secured at one
end of the hollow tube. The seal assembly outer diameter is
substantially similar to the hollow tube outer diameter.
Inventors: |
INGRAM; Aaron N.; (Canton,
GA) ; DAVIS; Benjamin Martin; (Smyrna, GA) ;
LAIR; Anthony C.; (Alpharetta, GA) ; COSTELLO; Mark
Martin; (Co. Mayo, IE) ; DOHERTY; Tony; (Co.
Mayo, IE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
INGRAM; Aaron N.
DAVIS; Benjamin Martin
LAIR; Anthony C.
COSTELLO; Mark Martin
DOHERTY; Tony |
Canton
Smyrna
Alpharetta
Co. Mayo
Co. Mayo |
GA
GA
GA |
US
US
US
IE
IE |
|
|
Assignee: |
NEOMED, INC.
Woodstock
GA
|
Family ID: |
46829919 |
Appl. No.: |
13/600595 |
Filed: |
August 31, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
13191721 |
Jul 27, 2011 |
|
|
|
13600595 |
|
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|
|
61563923 |
Nov 28, 2011 |
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Current U.S.
Class: |
604/218 ;
604/403 |
Current CPC
Class: |
A61M 39/10 20130101;
A61M 2005/3123 20130101; A61M 2039/1077 20130101; A61J 11/00
20130101; A61J 15/0011 20130101; B65D 47/2031 20130101; A61J 9/00
20130101; A61M 5/1782 20130101; A61M 5/162 20130101; A61J 9/085
20130101; A61J 1/1475 20130101; B65D 47/08 20130101; B65D 83/0005
20130101; A61J 15/0076 20150501; B65D 47/2025 20130101 |
Class at
Publication: |
604/218 ;
604/403 |
International
Class: |
A61J 1/20 20060101
A61J001/20; A61M 5/315 20060101 A61M005/315 |
Claims
1. A integral-venting enteral syringe comprising: a syringe body
having an outside surface and defining a hollow internal cavity
therein the syringe body including an open end and a substantially
closed end opposite the open end, the substantially closed end
being integrally formed with the remainder of the syringe body; at
least one vent extending from the hollow cavity to the outside
surface of the syringe body, a plunger operable to selectively
travel within the hollow cavity; and a port adjacent the
substantially closed end.
2. The integral-venting enteral syringe of claim 1 wherein the vent
is separate from the port and extends from generally adjacent the
substantially closed end to outside the syringe body.
3. The integral-venting enteral syringe of claim 1 wherein the vent
comprises two vents including a first vent separate from the port
seal and extending from generally adjacent the substantially closed
end to outside the syringe body and a second vent formed in the
port.
4. The integral-venting enteral syringe of claim 4 wherein the port
comprises a double-lumen seal such that a supply/discharge lumen
and vent lumen can be extended into the double-lumen port seal.
5. The integral-venting enteral syringe of claim 1 wherein the vent
is formed in or adjacent the port.
6. The integral-venting enteral syringe of claim 1, wherein the
syringe body and the plunger are each substantially
cylindrical.
7. The integral-venting enteral syringe of claim 6, wherein syringe
body had an asymmetrical portion extending outwardly to limit
rolling movement of the syringe body.
8. The integral-venting enteral syringe of claim 1, further
comprising a removable cap for covering and uncovering the
substantially closed end of the syringe body.
9. The integral-venting enteral syringe of claim 1, further
comprising an offset tip formed in the substantially closed end of
the syringe body, the offset tip being positioned in a position
offset from a center of the substantially closed end of the syringe
body.
10. The integral-venting enteral syringe of claim 1, wherein the
integrally formed substantially closed end functions as a
non-removable cap.
11. A self-venting enteral syringe comprising: a syringe body
having an outside surface and defining a hollow internal cavity
therein and at least one vent extending from the hollow cavity to
the outside surface of the syringe body, the syringe body including
an open end and a substantially closed end opposite the open end,
the substantially closed end being integrally formed with the
remainder of the syringe body; a plunger operable to selectively
travel within the hollow cavity; a port formed through the
substantially closed end; and a vent formed through the
substantially closed end.
12. The self-venting enteral syringe of claim 11 wherein the vent
is separate from the port and extends from generally adjacent the
substantially closed end to outside the syringe body.
13. The self-venting enteral syringe of claim 11 wherein the vent
is formed in or adjacent the port.
14. The self-venting enteral syringe of claim 11 wherein the vent
comprises two vents, including a first vent separate from the port
and extending from generally adjacent the substantially closed end
to outside the syringe body and a second vent formed in the
port.
15. The self-venting enteral syringe of claim 14 wherein the port
seal comprises a double-lumen seal such that a supply/discharge
lumen and vent lumen can be extended into the double-lumen
port.
16. The self-venting enteral syringe of claim 11, wherein the
syringe body and the plunger are each substantially
cylindrical.
17. The self-venting enteral syringe of claim 16, wherein syringe
body had an asymmetrical portion extending outwardly to limit
rolling movement of the syringe body.
18. The self-venting enteral syringe of claim 11, further
comprising a removable cap for covering and uncovering the
substantially closed end of the syringe body.
19. The self-venting enteral syringe of claim 11, further
comprising an offset tip formed in the substantially closed end of
the syringe body, the offset tip being positioned in a position
offset from a center of the substantially closed end of the syringe
body.
20. The self-venting enteral syringe of claim 11, wherein the
integrally formed substantially closed end functions as a
non-removable cap.
21. A luer-tip-restricting apparatus for use with liquid transfer
equipment, comprising: a female port assembly comprising a hollow
body with a top opening edge, a bottom opening edge and a tapered
inner diameter, the tapered inner diameter is designed to prevent
formation of an air-tight fit with a luer tip; and at least one
stop protruding from the tapered inner diameter, the at least one
stop is positioned within the tapered inner diameter to prevent an
air-tight fit with a luer tip inserted into the top opening edge of
the female port assembly.
22. The luer-tip-restricting apparatus of claim 21, wherein the at
least one stop positioned within the tapered inner diameter to
contact the luer-tip without producing an air-tight fit between the
luer-tip and the tapered inner diameter.
23. The luer-tip-restricting apparatus of claim 21, wherein the
female port assembly is generally barrel-shaped.
24. The luer-tip-restricting apparatus of claim 21, wherein the
female port assembly comprises a top opening edge and a bottom
opening edge, and varying heights between corresponding points of
the top opening edge and the bottom opening edge.
25. The luer-tip-restricting apparatus of claim 21, further
comprising a particle-restricting barrier secured over the bottom
opening edge of the female port assembly.
26. The luer-tip-restricting apparatus of claim 25, wherein the
particle-restricting barrier comprises a pair of
resiliently-flexible flaps separated by a channel.
27. The luer-tip-restricting apparatus of claim 25, wherein the
particle-restricting barrier comprises a vent to maintain free flow
of liquid transfer through the female port assembly.
28. The luer-tip-restricting apparatus of claim 21, wherein the
female port assembly comprises an insert secured within a receiver,
the insert comprising an inner surface and an outer surface, the
receiver comprising an inner surface, and the at least one stop
protruding from the insert inner surface.
29. The luer-tip-restricting apparatus of claim 28, wherein the
receiver comprises an inner surface and a generally continuous
groove extending around the inner surface, the insert comprises an
outer surface with a generally continuous ridge extending around
the outer surface, and the generally continuous ridge is designed
to fit within the generally continuous groove.
30. The luer-tip-restricting apparatus of claim 28, wherein the
receiver comprises at least one recession extending from the top
opening and along a length of the inner circumference, the insert
comprises at least one protrusion extending along a length of the
outer surface, and the at least one protrusion is designed to fit
within the at least one recession.
31. The luer-tip-restricting apparatus of claim 21, wherein the
luer-tip-restricting apparatus comprises a pair of stops protruding
from the tapered inner diameter, the stops separated by a distance
no greater than about 3.925 mm.
32. The luer-tip-restricting apparatus of claim 21, wherein the
female port assembly top opening edge comprises a minimum diameter
of about 4.270 mm.
33. A cap for use with a syringe bottle comprising a conical lid, a
barrel-shaped port assembly and a generally continuous
circumferential groove, the cap comprising: a top planar surface
comprising an elliptical shape with a major axis and a minor axis,
the major axis is longer than the minor axis; a generally
continuous collar extending from the edge of the top planar surface
to a distal edge; the collar comprised of resiliently flexible
material; a pair of opposing grips protruding inwardly from the
generally continuous collar and configured to be removably inserted
within the syringe bottle circumferential groove; and a plug
extending from the top planar surface within the generally
continuous collar dimensions, the plug designed to removably insert
into the syringe bottle port assembly.
34. The cap of claim 33, wherein the pair of opposing grips is
separated along the minor axis.
35. The cap of claim 34, wherein inward pressure along the major
axis causes elongation of the minor axis.
36. The cap of claim 33, wherein the plug is configured to form an
air-tight fit with the syringe bottle port assembly.
37. The cap of claim 33, wherein the plug comprises an open end, a
central bore, and a closed end.
38. The cap of claim 33, wherein the plug comprises a tapered outer
surface.
39. The cap of claim 33, wherein the plug is positioned offset from
the center of the major axis and offset from the center of the
minor axis.
40. The cap of claim 33, further comprising a support extending
from the top planar surface within the generally continuous collar
dimensions, the support having a distal end configured to contact
the syringe bottle conical lid when the pair of grips is inserted
within the syringe bottle continuous circumferential groove.
41. The cap of claim 40, wherein the support comprises a
semi-circular wall with a disconnect, and the plug is positioned
generally within the disconnect.
42. The cap of claim 40, wherein the support and plug are aligned
along the major axis.
43. The cap of claim 40, wherein the support and plug are aligned
along the minor axis.
44. The cap of claim 33, wherein the generally continuous collar
comprises a varying height between the top planar surface and the
distal edge.
45. The cap of claim 33, wherein the generally continuous collar
distal edge comprises at least one concave section and at least one
convex section.
46. An adaptor for use with a syringe bottle comprising a conical
lid, a barrel-shaped port assembly and a generally continuous
circumferential groove, the adaptor comprising: a resiliently
flexible elliptical collar comprising a major axis and a minor
axis; a funnel comprising a sloping surface and an elongated port
with a distal end, the funnel extending within the dimensions of
the major axis and the minor axis; and a pair of opposing grips
protruding inwardly from the elliptical collar and configured to be
removably inserted within the syringe bottle circumferential
groove.
47. The adaptor of claim 46, wherein the pair of opposing grips is
separated along the minor axis.
48. The adaptor of claim 47, wherein inward pressure along the
major axis causes elongation of the minor axis.
49. The adaptor of claim 46, further comprising a support extending
from the funnel sloping surface within the elliptical collar
dimensions, the support having a distal end configured to contact
the syringe bottle conical lid when the pair of grips is inserted
within the syringe bottle continuous circumferential groove.
50. The adaptor of claim 49, wherein the support comprises a
semi-circular wall with a disconnect, and the elongated port is
positioned generally within the disconnect.
51. The adaptor of claim 50, wherein the support and elongated port
are aligned along the major axis.
52. The adaptor of claim 50, wherein the support and elongated port
are aligned along the minor axis.
53. The adaptor of claim 46, further comprising a circumferential
mouth with an attachment mechanism.
54. The adaptor of claim 46, wherein the elongated port is
configured to ventedly insert into the syringe bottle port
assembly.
55. The adaptor of claim 46, wherein the elongated port is
configured to form an air-tight fit with the syringe bottle port
assembly.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present invention claims priority to U.S. Provisional
Patent Application Ser. No. 61/563,923 filed Nov. 28, 2011 and is a
continuation-in-part of U.S. Non-Provisional patent application
Ser. No. 13/191,721 filed Jul. 27, 2011, the entireties of which
are incorporated herein by reference.
TECHNICAL FIELD
[0002] The present invention relates generally to the field of
collection and dispensing of fluids, and more particularly to a
collection and dispensing system for biological fluids, such as
breast milk and/or dietary or medicinal materials.
BACKGROUND
[0003] Maintaining aseptic integrity is of great importance in many
fluid collection and dispensing applications. For example, in the
delivery of breast milk or formula to premature infants who are
unable to feed regularly, freshness and prevention of contamination
are critical. The delivery of enteral fluids is often controlled by
regulations and medical standards of practice.
[0004] In addition to proper collection and dispensing of
biological fluids, such as breast milk or formula, it is also
desirable to provide for the containment, mixing and delivery of
pharmaceutical or nutritional supplements. Various consumer and/or
professional applications would benefit from improved systems and
methods for fluid collection and delivery.
[0005] It is to the provision of improved systems and methods for
fluid collection and delivery that the present invention is
primarily directed.
SUMMARY
[0006] In example embodiments, the present invention provides a
container for collecting, storing and dispensing fluid. The
container includes a hollow tube configured to receive a
plunger.
[0007] In a first example, the present invention comprises a
self-venting enteral syringe which includes a syringe body having
an outside surface and defining a hollow internal cavity therein,
the syringe body including an open end and a substantially closed
end opposite the open end, the substantially closed end being
integrally formed with the remainder of the syringe body. At least
one vent extends from the hollow cavity to the outside surface of
the syringe body and a plunger is operable to selectively travel
within the hollow cavity. A port is positioned adjacent the
substantially closed end.
[0008] In example forms, the vent is separate from the port and
extends from generally adjacent the substantially closed end to
outside the syringe body. Optionally, the vent can comprise two
vents including a first vent separate from the port and extending
from generally adjacent the substantially closed end to outside the
syringe body and a second vent formed in the port. Also optionally,
the port can comprise a double-lumen seal such that a
supply/discharge lumen and vent lumen can be extended into the
double-lumen port seal. In one example form, the vent is formed in
or adjacent the port.
[0009] Optionally, a removable cap can be provided for covering and
uncovering the substantially closed end of the syringe body.
However, preferably the integrally-formed, substantially closed end
functions as a non-removable cap.
[0010] Optionally, an offset tip is formed or located in the
substantially closed end of the syringe body, the offset tip being
positioned in a location offset from a center of the substantially
closed end of the syringe body.
[0011] Advantageously, the vent(s) improve the filling of the
syringe, while the integral cap provides a better, simpler closure
at that end (and makes a separate cap/lid unneeded in most
instances). The offset tip helps provide better control in the
filling and dispensing and is particularly helpful in maintaining
uniformity in dispensing from the syringe. The optional
double-lumen port seal can provide convenient filling/dispensing,
while also providing a useful vent. Also, by utilizing the optional
female port, a male-to-male connection can improve safety.
[0012] In another example form, the present invention comprises a
self-venting enteral syringe including a syringe body having an
outside surface and defining a hollow internal cavity therein and
at least one vent extending from the hollow cavity to the outside
surface of the syringe body. The syringe body includes an open end
and a substantially closed end opposite the open end, with the
substantially closed end being integrally formed with the remainder
of the syringe body. A plunger is operable to selectively travel
within the hollow cavity, while a port is formed in or adjacent the
substantially closed end. A vent is positioned in or adjacent the
port.
[0013] In another example form the present invention is a
luer-tip-restricting apparatus for use with liquid transfer
equipment. The luer-tip-restricting apparatus includes a female
port assembly with a hollow body and with a top opening edge, a
bottom opening edge and a tapering inner diameter. The tapering
inner diameter is designed to prevent formation of an air-tight fit
with a luer tip. The luer-tip restricting apparatus also has at
least one stop protruding from the tapering inner diameter. The at
least one stop is positioned within the tapering inner diameter to
prevent an air-tight fit with a luer tip inserted into the top
opening edge of the female port assembly.
[0014] In another example form, the present invention is a cap for
use with a syringe bottle having a conical lid, a female
barrel-shaped port assembly and a generally continuous
circumferential groove. The cap includes a top planar surface with
an elliptical shape with a major axis and a minor axis. The major
axis is longer than the minor axis. The cap includes a generally
continuous collar extending from the edge of the top planar surface
to a distal edge. The collar is constructed of resiliently flexible
material. The cap includes a pair of opposing grips protruding
inwardly from the generally continuous collar. The grips are
configured to be removably inserted within the syringe bottle
circumferential groove. The cap includes a plug that extends from
the top planar surface within the generally continuous collar
dimensions. The plug is designed to removably insert into the
syringe bottle port assembly.
[0015] In another example form, the present invention is an adaptor
for use with a syringe bottle having a conical lid, a female
barrel-shaped port assembly and a generally continuous
circumferential groove. The adaptor includes a resiliently flexible
elliptical collar with a major axis and a minor axis. The adaptor
includes a funnel with a sloping surface and an elongated port with
a distal end. The funnel extends within the dimensions of the major
axis and the minor axis. The adaptor includes a pair of opposing
grips protruding inwardly from the elliptical collar and configured
to be removably inserted within the syringe bottle circumferential
groove.
[0016] These and other aspects, features and advantages of the
invention will be understood with reference to the drawing figures
and detailed description herein, and will be realized by means of
the various elements and combinations particularly pointed out in
the appended claims. It is to be understood that both the foregoing
general description and the following brief description of the
drawings and detailed description of the invention are exemplary
and explanatory of preferred embodiments of the invention, and are
not restrictive of the invention, as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG. 1A is a side elevation view of a self-venting enteral
syringe according to a first example embodiment of the present
invention.
[0018] FIG. 1B is a sectional view of an optional removable cap
portion of the syringe of FIG. 1A.
[0019] FIG. 1C is a sectional view of the self-venting enteral
syringe of FIG. 1A.
[0020] FIG. 10 is an accessory port assembly according to an
example embodiment of the present invention.
[0021] FIG. 2A is a side elevation view of a self-venting enteral
syringe according to another example embodiment of the present
invention.
[0022] FIG. 2B is a sectional view of a removable cap according to
another example embodiment of the present invention.
[0023] FIG. 2C is a sectional view of the self-venting enteral
syringe of FIG. 2A.
[0024] FIG. 2D is a sectional view of an accessory port assembly
according to another example embodiment of the present
invention.
[0025] FIG. 2E is a plan view of a double-lumen seal portion of the
self-venting syringe of FIG. 2A.
[0026] FIG. 2F is a plan view of an alternate version of a
double-lumen seal according to another example embodiment of the
present invention.
[0027] FIG. 2G is a plan view of yet a further double-lumen
seal.
[0028] FIG. 3 is a first perspective view of a luer-restricting
syringe according to another example embodiment of the present
invention.
[0029] FIG. 4 is a second perspective view of the luer-restricting
syringe of FIG. 3.
[0030] FIG. 5A is a cross-sectional view of the luer-restricting
syringe of FIG. 3.
[0031] FIG. 5B is a cross-sectional view of the luer-restricting
syringe of FIG. 3 in use with an enter-only syringe.
[0032] FIG. 5C is a cross-sectional view of the luer-restricting
syringe of FIG. 3 in use with a commercially-available luer slip
tip.
[0033] FIG. 6 is a perspective view of a chimney insert and seal
attachment used with the luer-restricting syringe of FIG. 3.
[0034] FIG. 7 is a perspective cross-sectional view of the chimney
insert and seal attachment of FIG. 6.
[0035] FIG. 8 is a perspective view of the chimney insert of FIG. 6
without the seal attachment.
[0036] FIG. 9 is a perspective view of the seal attachment of FIG.
6 removed from the chimney insert.
[0037] FIG. 10 is an enlarged sectional view of the view of FIG.
7.
[0038] FIG. 11 is a perspective view of a cap secured to the
luer-restricting syringe according to another example embodiment of
the present invention.
[0039] FIG. 12 is a top view of the cap of FIG. 11.
[0040] FIG. 13 is a bottom view of the cap of FIG. 11.
[0041] FIG. 14 is a perspective cut-away view of the cap of FIG.
11.
[0042] FIG. 15A is a perspective cross-sectional view of the cap of
FIG. 11 secured to the luer-restricting syringe of FIG. 3.
[0043] FIG. 15B is a perspective cross-sectional view of an
alternative example embodiment of the cap of FIG. 11 secured to the
luer-restricting syringe of FIG. 3.
[0044] FIG. 16 is a perspective cut-away view of the cap of FIG. 11
secured to the luer-restricting syringe of FIG. 3.
[0045] FIG. 17 is a cross-sectional view of the cap of FIG. 11
secured to the luer-restricting syringe of FIG. 3 as viewed along
line A in FIG. 16.
[0046] FIG. 18 is a top view of an alternative example embodiment
of the cap of FIG. 12 according to another example embodiment of
the present invention.
[0047] FIG. 19 is a bottom view of the cap of FIG. 18.
[0048] FIG. 20 is a cross-sectional side view of the cap of FIG. 18
as viewed along the major X axis.
[0049] FIG. 21 is a cross-sectional view of the cap of FIG. 18 as
viewed along the minor axis.
[0050] FIG. 22 is a side view of the cap of FIG. 18 as viewed along
the major X axis.
[0051] FIG. 23 is a perspective view of a breast-pump adaptor
according to another example embodiment of the present invention,
shown secured to the syringe body of FIG. 3.
[0052] FIG. 24A is a side view of the breast-pump adaptor of FIG.
23 as viewed along the minor Y axis.
[0053] FIG. 24B is a side view of the breast pump adaptor of FIG.
23 as viewed along the major X axis.
[0054] FIG. 25 is a perspective cross-sectional view of the breast
pump adaptor of FIG. 23.
[0055] FIG. 26 is a perspective cross-sectional view of the
breast-pump adaptor of FIG. 23 secured to the syringe body of FIG.
3.
[0056] FIG. 27 is a side view of a nipple adaptor according to
another example embodiment of the present invention, shown secured
to a commercial nipple and the syringe body of FIG. 3.
[0057] FIG. 28 is a cross-sectional view of the nipple adaptor of
FIG. 27.
[0058] FIG. 29 is a cross-sectional view of a second alternative
example embodiment nipple adaptor according to another example
embodiment of the present invention shown secured to an alternative
commercial nipple and the syringe body of FIG. 3.
[0059] FIG. 30 is a cross-sectional view of a third alternative
example embodiment nipple adaptor according to another example
embodiment of the present invention, shown secured to an
alternative commercial nipple.
[0060] FIG. 31 is a perspective view of the nipple adaptor of FIG.
30.
[0061] FIG. 32 is a bottom view of the nipple adaptor of FIG.
30.
DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS
[0062] The present invention may be understood more readily by
reference to the following detailed description of the invention
taken in connection with the accompanying drawing figures, which
form a part of this disclosure. It is to be understood that this
invention is not limited to the specific devices, methods,
conditions or parameters described and/or shown herein, and that
the terminology used herein is for the purpose of describing
particular embodiments by way of example only and is not intended
to be limiting of the claimed invention. Any and all patents and
other publications identified in this specification are
incorporated by reference as though fully set forth herein.
[0063] Also, as used in the specification including the appended
claims, the singular forms "a," "an," and "the" include the plural,
and reference to a particular numerical value includes at least
that particular value, unless the context clearly dictates
otherwise. Ranges may be expressed herein as from "about" or
"approximately" one particular value and/or to "about" or
"approximately" another particular value. When such a range is
expressed, another embodiment includes from the one particular
value and/or to the other particular value. Similarly, when values
are expressed as approximations, by use of the antecedent "about,"
it will be understood that the particular value forms another
embodiment.
[0064] With reference now to the drawing figures, wherein like
reference numbers represent corresponding parts throughout the
several views, the drawing figures depict various embodiments of
self-venting enteral syringes according to example embodiments of
the present invention. FIG. 1A shows a self-venting enteral syringe
10 according to a first example embodiment of the present
invention. In general, the enteral syringe 10 includes an elongated
syringe body 20, a plunger 40, and an optional cover or cap 60.
[0065] Referring now to FIG. 1C, the syringe body 20 defines an
internal elongate cavity 22 that stretches substantially along the
length of the body from an open end 26 towards a substantially
closed end 24. In preferred example embodiments, the cavity 22
substantially matches the cross-section of the syringe body 20,
providing a substantially constant outer-wall thickness of the
same. The substantially closed end 24 comprises a supply/discharge
port 30 and a vent 32, both integrally formed with the syringe body
20 and positioned generally adjacent the substantially closed end
24. The closed end 24 can also include an integrally formed
mounting groove 37 for coupling with the cover or cap 60.
[0066] The supply/discharge port 30 extends from the internal
cavity 22 to the outside surface of the syringe body 20 along a
circumferential wall 31 and surrounds a port seal 34 mounted
therein. The port seal 34 can be an integral flap, and integral
fluid seal or a functional seal. Similarly to the supply/discharge
port 30, the vent 32 extends from the internal cavity 22 to the
outside surface of the syringe body 20 along a circumferential wall
33 and surrounds a vent port seal 36 positioned therein.
Optionally, the supply/discharge port 30 and the vent 32 can be
positioned in a position offset from the center of the
substantially closed end of the syringe body 24. The optional
offset position of port 30 and vent 32 can allow a more controlled
filling and uniform dispensing of fluids.
[0067] The proximal end 26 of the syringe body 20 includes an
opening 38 for receiving the plunger 40 therein and also includes a
flange 23 for supporting the syringe in an upright position and
assisting in use of the syringe. Optionally, the flange 23 can have
an asymmetric cross section, for example to prevent the syringe 10
from rolling when lying in a non-vertical position. The syringe
body 20 can have a substantially circular cross-section (as
depicted in FIGS. 1-2), or can comprise an oval, elliptical,
rectangular, or asymmetric cross-section as desired, and the
opening 38 generally has a cross-section that is sized and shaped
to snugly receive an inserted complementary plunger 40. The plunger
40 depicted in the figures comprises a first seal 41 and a second
seal 43 to prevent fluid passage out of the contained volume 22,
and allow the plunger to advance and retract within the syringe
body 20. Optionally, the plunger can comprise one seal or may
comprise two or more seals.
[0068] The cover or cap 60, as shown in FIG. 1B, is removably
mountable to the substantially closed end 24 of the syringe body 20
and comprises a circumferential wall 61 extending from a circular
lid panel 62 having a perimeter 64. A lower portion of the
circumferential wall 61 comprises a partially circumferential
mounting flange 63 for engaging the substantially closed end 24 of
the syringe body 20, for example the mounting groove 37 shown in
FIG. 1C. An upper portion of the circumferential wall 61 comprises
a pinchable or squeezable rim 68 extending above the lid panel 62.
The squeezable rim 68 can pivot about the perimeter 64 of the lid
panel 62 to disengage the lower portion mounting flange 63 from the
mounting groove 37, for example to remove the closure cap 60 from
the syringe. Optionally, the closure cap can be attached to the
body by a hinge or keeper, or can be non-removable, for example by
entirely omitting the squeezable rim 68 or by having a fully
circumferential rim. Additionally, the interior portion of the lid
panel 62 comprises a sealing stem 65 and concentric ridges 66, 67,
having an appearance much like a "bulls-eye" to provide a more
positive seal with the port seal 34. With the closure cap coupled
to the substantially closed end 24 of the syringe body 20, the stem
65 and ridges 66, 67 formed in the underside of the lid panel 62
are brought into sealing engagement with the top surface of port
seal 34 and vent port seal 36 to provide a more positive seal
against the elements.
[0069] To ensure a proper circumferential orientation of the
interior sealing elements with respect to one another, the enteral
syringe 10 can comprise an exposed notch 28 and the closure cap 60
can comprise a recessed portion 70. The notch 28 and the recessed
portion 70 are engagable with each other and ensure proper
orientation upon coupling the closure cap 60 to the syringe body
20. Additionally, the diameter of the circumferential wall 61 is
substantially equivalent to the diameter of the syringe body
20.
[0070] In additional example embodiments, FIG. 10 shows a breast
pump attachment port assembly 80 for removably coupling to the
substantially closed end 24 of the syringe body 20. The port
assembly 80 comprises a circumferential wall 81 having a top
portion with threading 84 on the exterior surface and a bottom
portion surrounding a substantially closed shelf 82. The
substantially closed shelf 82 comprises a fill/transfer nipple 86
for extending through the port seal 34 and a vent nipple 88 for
extending through the vent port seal 36. The fill/transfer nipple
86 (can alternatively be termed a "straw," "port" or "spike")
comprises an elongated cylindrical tube having a hollow interior
portion extending through the shelf 82 to allow fluid communication
with the interior of the cavity 22. The vent nipple 88 (can
alternatively be termed a "straw," "port" or "spike") comprises an
elongated cylindrical tube having a hollow interior portion
extending along a path to the outside of the circumferential wall
81.
[0071] FIGS. 2A and 2C show an alternative embodiment of a
self-venting enteral syringe 110, substantially similar to the
above-described system 10 with differences as noted below. The
syringe body 120 defines an internal elongate cavity 122 that
stretches substantially along the length of the body from an open
end 126 towards a substantially closed end 124. The substantially
closed end 124 comprises a supply/discharge port 130 integrally
formed with the syringe body 120 and extending generally adjacent
the substantially closed end 124. The supply/discharge port 130
extends from the internal cavity 122 to the outside surface of the
syringe body 120 along a circumferential wall 131 and surrounds a
port seal 134. The port seal 134 is sealingly engaged within the
circumferential wall 131 of the port 130 with a tight friction or
interference fit and can comprise a double-lumen seal 190 (see
FIGS. 2E-G). The double-lumen seal 190 comprises a supply/discharge
lumen 192 and a vent lumen 194. The supply/discharge lumen 192 and
the vent lumen 194 can have substantially circular cross-sections
(as depicted in FIG. 2G), or can comprise an oval, elliptical,
rectangular, or non-symmetrical cross-sections as desired (as
depicted in FIGS. 2E-F).
[0072] The cover or cap 160, as shown in FIG. 2B, is removably
mountable to the substantially closed end 124 of the syringe body
120 and comprises a circumferential wall 161 extending from a
circular lid panel 162 having a perimeter 164. A lower portion of
the circumferential wall 161 comprises a partially circumferential
mounting flange 163 for engaging the substantially closed end 124
of the syringe body 120, for example the mounting groove 137 shown
in FIG. 2C. An upper portion of the circumferential wall 161
comprises a pinchable or squeezable rim 168 extending above the lid
panel 162. The squeezable rim 168 can pivot about the perimeter 164
of the lid panel 162 to disengage the lower portion mounting flange
163 from the mounting groove 137, for example to remove the closure
cap 160 from the syringe. Optionally, the closure cap can be
non-removable, for example by entirely omitting the squeezable rim
168 or by having a fully circumferential rim. Additionally, the
interior portion of the lid panel 162 comprises concentric ridges
166, 167, having an appearance much like a "bulls-eye" to provide a
more positive seal with the port seal 134. With the closure cap
coupled to the substantially closed end 124 of the syringe body
120, the ridges 166, 167 formed in the underside of the lid panel
162 are brought into sealing engagement with the top surface of
port seal 134 to provide a more positive seal against the
elements.
[0073] To ensure a proper circumferential orientation of the
interior sealing elements with respect to one another, the enteral
syringe 110 can comprise an exposed notch 128 and the closure cap
160 can comprise a recessed portion 170. The notch 128 and the
recessed portion 170 are engagable with each other and ensure
proper orientation upon coupling the closure cap 160 to the syringe
body 120. Additionally, the diameter of the circumferential wall
161 is substantially equivalent to the diameter of the syringe body
120.
[0074] FIG. 2D depicts a scaled alternative embodiment of a breast
pump attachment port assembly 180. The port assembly 180 has a
circumferential wall 181 having a top portion with threading 184 on
the exterior surface and a bottom portion surrounding a
substantially closed shelf 182 having a double-channel nipple 186
(can alternatively be termed a "straw," "port" or "spike"). The
double-channel nipple 186 comprises a fill/transfer channel 187 and
a vent channel 188. The fill/transfer channel 187 extends through
the shelf 182 to allow fluid communication with the interior of the
cavity 122 and is shaped to engage the supply/discharge lumen 192.
The vent channel 188 extends along a path to the outside of the
circumferential wall 181 and is shaped to engage the vent lumen
194. Additionally, the circumferential wall 181 has a partially
circumferential mounting flange 188 for engaging the mounting
groove 137 of the substantially closed end 124 of the syringe body
120.
[0075] In operation, the syringe 10, 110 of the present invention
can be used in various applications, including the enteral
administration of nutrients and/or medications to a patient.
External devices, such as a breast pump, can be mounted to the port
assembly by the threading. When the plunger is fully engaged into
the cavity, fluid from the external device can be supplied to the
syringe through the fill/transfer nipple or the fill/transfer
channel of the double-channel nipple. As fluid begins to fill the
cavity, excess air or gas within the cavity can be removed by the
vent nipple, the vent channel, or a combination of both.
Additionally, a male-to-male adaptor tube can be formed. The
male-to-male adaptor tube can accommodate enteral feeding by
connecting the female port of the self-venting enteral syringe to a
traditional female extension of an enteral feeding tube.
[0076] All of the components discussed and described herein can be
formed from plastics (i.e. polypropolene), other polymers, glass,
metals, metal alloys, resins, rubbers, rubber derivatives,
elastomerics (i.e. santoprene), silicones or other known materials.
In commercial embodiments, the syringe body 20, 120 can be formed
from polypropylene, polyethylene or polypropylene copolymers, the
plunger is formed from the same, and the plunger seals formed from
elastomer 40, 140 is formed from an elastomeric. Optionally, color
additivies may be added to provide protection from UV light and/or
colorants may be added to the syringe 10, 110 as desired and/or to
identify certain properties/characteristics (i.e. administration
path) or contents. In alternative embodiments, the syringe can
include external markings to indicate volume capacity and remaining
content levels.
[0077] An alternative embodiment enteral-only luer-restricting
syringe is described in FIGS. 3-10. The luer-restricting syringe
allows a single syringe body to receive, store, transport, transfer
and deliver fluid within a single chamber. A lid 304 is secured to
an open end of a cylindrical syringe body 302 through a variety of
methods, including friction fit, corresponding threading, tongue
and groove, or adhesive. Preferably, the lid 302 is integrally
co-molded with the syringe body 302. Similarly to the syringe
bodies 20, 120 described above, the alternative syringe body 302
defines an elongate interior cavity chamber for receiving and
storing material, for example fluid. The syringe body 305 has a
generally circular circumference. A generally continuous groove 312
is extends around the outer circumference between the lid 304 and
the syringe body 302. The continuous groove 312 can be integrally
formed with the syringe body 302. Alternatively, a continuous
groove can be formed around the outer surfaces of either the lid or
the syringe body. As depicted, the groove 312 includes a pair of
ribs 306 that interrupt the continuity of the groove. Additional
ribs 306 can alternatively be included within the groove 312. The
ribs 306 act as barriers to prevent unwanted rotation of adaptors
or caps with respect to the groove 312, as described further below.
As depicted, the lid 304 can be generally conical with a peak 308
and a hollow interior. However, alternative shapes can be similarly
effective.
[0078] As depicted, a female supply/discharge port assembly 300,
including a barrel receiver 314 and chimney insert 318, extends
upwardly over an aperture (not shown) in the lid 304. The
supply/discharge port assembly 300 can be secured to the lid
through a variety of fixation methods, including friction fit,
corresponding threading, tongue and groove, or adhesive.
Preferably, the barrel receiver 314 can be integrally co-molded
with the lid 304. The chimney insert 318 is separably secured
within the barrel receiver 314. The chimney insert 318 can be
secured with respect to the barrel receiver 314 through an
interference or friction fit, conjoined through adhesives, bonded
through heat, radiofrequency, ultrasonic, or over-molded by molding
the barrel receiver over the chimney insert. As further depicted in
FIGS. 5A-5C, an integral continuous groove 380 extends around the
circumferential interior surface of the barrel receiver 314. As
depicted, the barrel receiver 314 can include a pair of opposing
wing recessions 310 defined longitudinally-parallel along the
interior surface of the barrel receiver 314 from the top edge to a
defined termination position before reaching the continuous groove
380. Alternatively, the barrel receiver 314 can include a greater
or lesser number of wing recessions 310 positioned at various
locations on the internal circumference. As depicted, the barrel
receiver 314 has a circumferential surface with variable height at
particular locations between the top and bottom openings along the
circumference, thus producing a slanted bottom edge with a minimum
and maximum height.
[0079] As depicted, the chimney insert 318 includes an upper region
354, a lower region 358 and a neck 370. The chimney insert 318 is
preferably integrally molded as a continuous unitary body and can
be constructed of a rigid, durable material, for example plastic or
metal. The chimney insert 318 has an inner passageway 320 with a
generally consistent diameter. The upper region 354 includes a top
edge and transition surface 352 leading into the inner passageway
320. The upper region 354 can also include a pair of opposing wing
protrusions 350 having a substantially similar shape and dimensions
as the barrel receiver wing recessions 310. The protrusions 350 are
designed to be securely received within the wing recessions 310 in
the barrel receiver 314. A continuous ridge 356 protrudes around
the circumferential outer surface of the chimney insert 318 and
distinguishes the upper region 354 from the lower region 358. The
continuous ridge 356 is designed to secure within the continuous
groove 380 in the barrel receiver 314. As depicted, the upper
region 354 and the lower region 358 can have a generally consistent
outer diameter.
[0080] The neck 370 extends from below the lower region 358. The
neck 370 has a smaller outer diameter than the upper 354 and lower
358 region outer diameters, thus producing an overhang of the lower
region over the neck. A finger protrusion 333 extends onto the
outer surface of the neck 370. The finger protrusion 333 has an
outer-surface diameter consistent with the lower region 358, thus
creating a generally consistent outer surface across the lower
region and the finger protrusion. The finger protrusion 333 is
designed to be received in a finger recession 378 of a seal, as
further described below. As depicted, the neck 370 has a
circumferential surface with variable height at particular
locations along the circumference between the top and bottom
openings, thus producing a slanted bottom edge with a minimum and
maximum height.
[0081] A pair of stops 330 protrude from the interior surface of
the chimney insert 318. As depicted, the stops 330 are positioned
opposite each other along inner surface of the lower region 358 of
the chimney insert 318. Alternatively, a single stop or multiple
stops can extend from the inner surface of the chimney insert 318.
As depicted, the stops 330 can have a tapered inwardly-facing
surface that narrows in diameter toward the neck 370.
Alternatively, the inwardly-facing surface of the stops 330 can
have a consistent diameter.
[0082] The chimney insert 314 has a tapering inner diameter that is
designed to receive an enteral-only syringe tip 400, such as shown
in FIG. 5B. A commercially-available enteral-only syringe tip 400
has a tapered shape. The inner diameter of the chimney insert 314
has a larger upper diameter and a smaller lower diameter in order
to correspond with a commercial enteral-only tip. Upon being
inserted into the top opening of the passageway 320 of the chimney
insert 314, the tapered enteral-only tip 400 creates a friction-fit
air-tight seal with the chimney at the point when the tapered
enteral-only tip 400 diameter matches the chimney insert 314
diameter. As shown, the friction-fit air-tight seal is formed
without the enteral-only tip 400 contacting the stops 330. This
friction-fit air-tight seal allows fluids to be transferred between
the enteral-only syringe 400 and the syringe body 302 without
acquiring outside contaminants.
[0083] As depicted in FIG. 5C, the chimney insert 314 is designed
to not create an air-tight seal with a commercially-available luer
tip 402, for example a luer-slip-tip, having dimensions defined by
ISO 594/1-1986(E) and ISO 594-2:1998(E) conical fittings with a 6%
Luer taper for syringes, needles and certain other medical
equipment, hereby incorporated by reference for all purposes. A
commercially-available luer tip 402, or luer-slip-tip has a smaller
minimum diameter and smaller maximum diameter than the enteral-only
tip 400. As depicted, the stops 330 prevent the luer tip 402 from
extending within the chimney insert 314 to a distance that would be
required for the luer tip 402 to form an air-tight friction-fit
with the chimney insert. Specifically the distance between the
stops 330, specifically the inwardly-facing surface has a maximum
of, or is preferably less than, 3.925 mm, which is the minimum
diameter for a 6% Luer tip end of the male conical fitting as
defined by ISO standards. Additionally, the diameter of the top
opening of the chimney insert 318 has a minimum of, or is
preferably greater than, 4.315 mm, which is the maximum diameter at
the opening of a female conical fitting to receive a 6% luer
conical fitting. This inability to form a friction-fit air-tight
seal prevents the chimney insert 314 from being effectively used
with a luer tip 402 because contaminants cannot be excluded from
any liquid being transferred between the luer tip and the syringe
body 302. This meets the provisions of such standards as ISO 80369
by restricting engagement of luer connectors and enteral connectors
to prevent intermingling of the fluid paths.
[0084] A seal attachment 362 is depicted to attach with respect to
the neck 370 of the chimney insert 318. The seal attachment 372 has
a continuous circumferential collar 372 that fits around the neck
370 and has an outer diameter that is generally consistent with the
outer diameter of the lower region 358 of the chimney insert 318.
The continuous circumferential collar 372 also has a finger cutout
378 to receive the finger protrusion 333 on the chimney insert
318.
[0085] The continuous circumferential collar 372 is secured around
the neck 370 through a friction-fit and/or an adhesive. The seal
attachment 372 includes a pair of flaps 374. As depicted, the flaps
374 have a generally semi-circular shape with a smaller diameter
than the interior diameter of the continuous circumferential collar
372, thus providing a generally-continuous gap 364 between the
flaps and the continuous circumferential collar. The flexible flaps
374 are secured to the continuous circumferential collar 372
through a pair of bridge mounts 376. As depicted, the flaps 374 are
separated by an elongated channel 377. The seal 362 is preferably
constructed as a single unitary body including the continuous
circumferential collar 372, the bridge mounts 376 and the flaps
374. The seal attachment 362 is preferably constructed of a
flexible material, for example plastic, rubber or silicone.
[0086] In use, the seal attachment 372 is secured with respect to
the chimney insert neck 372 and the flaps 374 prevent or restrict
solid particles from entering or exiting the syringe body 302 and
to augment the flow of fluid into and out of the syringe body.
Alternatively, the flaps 374 can be secured directly to the
circumferential collar 372 without the gap 364. Alternatively
still, the flaps 374 can resiliently rest together forming an
air-tight seal that is only broken with a protruding body, for
example a tube or straw, that is forced between the flaps.
[0087] As depicted in FIGS. 11-22, the syringe body 302 can be
stored or transported standing vertically upright on a platform
406. In storage or transport, the contents held within the internal
chamber of syringe body 302 can be protected with a removable cap
500.
[0088] The cap 500 has a top planar surface 502 and a generally
continuous collar 504 extending downwardly from the edge of the top
planar surface. The collar 504 can have a consistent height from
the top planar surface 502 to a distal edge. The generally
continuous collar 504 is preferably constructed of
resiliently-flexible material, for example plastic. As depicted,
the top planar surface 502 can have an elliptical shape with a
major (X) axis and a minor (Y) axis. A first pinch recession 508
can be formed at one end of the major (X) axis. A second pinch
recession 510 can be formed at an opposite end of the major (X)
axis. The first 508 and second pinch recessions 510 can extend
partially along the top planar surface 502 and generally across the
height of the collar 504. In use, inwardly-directed pinching
pressure applied simultaneously to the first 508 and second 510
pinch recessions, along the major (X) axis, causes the
resiliently-flexible collar 504 to change its shape to shorten the
major (X) axis and lengthen the minor (Y) axis. When this
simultaneous pressure is released, the resiliently-flexible collar
504 returns to the pre-pressure relaxed state.
[0089] A pair of teeth grips 514 extend inwardly from the interior
surface of the collar 504. As depicted, the teeth grips 514 can be
positioned diametrically opposite each other, and separated by and
along the minor (Y) axis. Alternatively, additional pairs of teeth
grips at alternative locations can be similarly effective. The
teeth grips 514 are preferably integrally co-molded with the cap
500. The teeth grips 514 have a shape that is designed to removably
insert into the continuous groove 312 between the lid 304 and the
syringe body 302 described above. In a relaxed state without
application of a pinching pressure described above, the minor (Y)
axis length is shorter than the diameter of the syringe body 302.
In a similarly relaxed state, the minor (Y) axis length is
generally equivalent to the distance between opposing points along
the inner-most surface of the continuous groove 312. In the relaxed
state, the resilient force of the cap 500 presses the teeth grips
514 into the continuous groove 312, thus preventing the cap from
involuntary removal during transport or storage. Correspondingly to
that described above, applying a simultaneous major (X) axis
pinching pressure to each pinch recession 508, 510 elongates the
minor (Y) axis and removes the teeth grips 514 out of the
continuous groove 312 so that the cap 500 can be removed. In use a
depicted in FIG. 17, the teeth grips 514 preferably insert into the
continuous groove 312 between the pair of ribs 306 to prevent the
cap 500 from rotating with respect to the groove.
[0090] As depicted, a plug is secured through an aperture (not
shown) in the top surface region of the second pinch recession 510.
The plug includes a base that secures above the top surface 502 and
a rigid probe that extends through the aperture (not shown) and
below the top surface. The plug is preferably integrally
constructed of a unitary single-body construction. The probe
preferably is tapered and has dimensions that are generally
consistent with an enteral-only tip, similar to the tip 400
described above. A first example plug 506 can have an opening in
the distal end 519 of the probe 518 with a hollow bore extending to
a closed base 516. Alternatively as shown in FIG. 15B, a second
example plug can have a base 516B with an opening 517 and a bore
that extends into a probe 518B that has a closed distal end 519B.
Alternatively still, a third example plug can have a solid base and
solid probe without any openings or internal bores.
[0091] The plug can be separately constructed and then fixed
through the cap 500 through a variety of fixation methods,
including friction fit, threading, and adhesive. Preferably, the
plug can be integrally co-molded with the cap 500 to form a unitary
body.
[0092] In use, the probe 518, 518B inserts into the passageway 320
in the above-described chimney insert 318 until it forms an
air-tight friction-fit seal similar to that described with the
enteral-only tip 400. This seal is air-tight and prevents unwanted
material from entering or exiting the syringe body 302 during
storage or transport.
[0093] A rigid support 512 extends downwardly from the top planar
surface 502 within the cap 500. As depicted, the support 512 can
have a semi-circular wall shape with a disconnect. As further
depicted, the support 512 can be positioned with respect to the cap
500 such that the plug 506 is positioned within the disconnect of
the semi-circular wall shape. As depicted, the plug 506 and support
512 can be aligned offset from center along the major (X) axis. In
use, when the probe 518, 518B is inserted into the chimney insert
318, a distal edge of the support 512 contacts the lid 304. This
contact between the support 512 and the lid 304 assists to prevent
the probe 518, 518B from inserting an unwanted distance into the
chimney 314, as shown in FIGS. 15A-16. The semi-circular shape of
the support 512 corresponds with the cone shape of the lid 304 to
maintain an even distribution of support. The proximal end of the
support 512 can be fixed to the cap 500 through a variety of
fixation methods, including friction-fit and adhesive. Preferably,
the support 512 is integrally co-molded with the cap 500 to form a
unitary structure.
[0094] As depicted in FIGS. 18-22, an alternative cap 500A can
align a plug 414 and support 422, of similar design and structure
to plug 506 and support 512 described above, along the center of
the minor (Y) axis, thus turned ninety degrees and shifted toward
center from the cap 500 described above. Similarly to the cap 500
described above, a pair of teeth grips 416 are depicted to align
along and be separated by, the minor (Y) axis.
[0095] An elongated marker 412 can integrally protrude from the
outer surface of the cap 500A and extends from the plug downwardly
along the outside of the collar 418. This marker 412 assists a user
to align the cap 500A with a marker 702 on the syringe body 302
described below in FIG. 23. The marker 412 can alternatively be a
recessed groove or surface indicator. A similar marker can be
integrated with cap 500.
[0096] As depicted, the collar 418 can have a variable height from
the top planar surface to the distal edge. As viewed along the
major (X) axis in FIG. 22, the distal edge can have a pair of
opposing convex outward arcs 430. As viewed along the minor (Y)
axis in FIG. 21, the distal edge can have a pair of concave inward
arcs 432. There can be a smooth transition between the convex 430
and concave 432 arcs. A pinch grip 434 having a textured
criss-crossed or embossed pattern, or similar surface, is depicted
to be present on a side of the cap so as to improve usability. As
depicted, the pinch grip 434 can be located on the outer surface
along the major (X) axis of the cap. Alternatively, the collar 418
can have a pair of opposing pinch grips on either end of the major
(X) axis.
[0097] FIGS. 23-28 shows an adaptor 704 that can attach to the
enteral-only syringe described above. As depicted, the adaptor 704
has a base region 710, a mouth region 714 and a transition waist
712 between the base and the mouth. There is an opening 720 through
the mouth 714 and an opening 730 through the base 710. As depicted,
the mouth region 714 and waist region 712 have a generally circular
circumference. The waist 712 is depicted to have a smaller diameter
than the mouth 714. The mouth 714 can include an attachment
mechanism 708, for example a threaded outer surface, to attach a
standard commercially-available breast pump.
[0098] As depicted in FIGS. 24A and 24B, the base region 710 can
have an elliptical shape similar to the cap collars 504, 418
described above. FIG. 24A shows the base region 710, as viewed
along the minor (Y) axis and FIG. 24B shows the base region as
viewed along the major (X) axis. Similarly to the cap collars 504,
418 described above, the base region 710 is preferably constructed
of resiliently-flexible material, for example plastic. In use,
pinching pressure applied simultaneously to the opposing ends of
the base region 710, along the major (X) axis, causes the
resiliently-flexible base 710 region to change its shape to shorten
the major (X) axis and lengthen the minor (Y) axis. When this
simultaneous pressure is released, the resiliently-flexible base
region 710 returns to the pre-pressure relaxed state and
dimensions.
[0099] As depicted, the base region 710 can include a pinch grip
711 on one of the opposing ends of the major (X) axis to improve
usability when applying pinch pressure. Alternatively, the base
region 710 can have a pair of opposing pinch grips on either end of
the major (X) axis. The pinch grip 711 can have a criss-crossed,
embossed or similar textured appearance.
[0100] A funnel 723 separates, and enables fluid passage between,
the interior of the mouth region 714 from the interior of the base
region 710. The funnel 723 includes a generally-circumferential
slide 738 that directs any liquid or material downward towards a
port 732. The port 732 is depicted to be hollow and elongated and
has a distal end that extends within the base region 710 of the
adaptor 704. The slide 738 extends from the inner wall of the
adaptor 704 and includes a downwardly-sloped surface. The
downwardly-sloped surface extends towards the port 732. The port
732 is preferably positioned off-center and toward an end of the
major (X) axis, preferably near the waist 712.
[0101] A support 734 extends downwardly away from the slide 738.
The support 734 can have a semi-circular wall shape with disconnect
similar to the supports 512, 422 in the caps 500, 410 described
above. The support 734 can also be positioned such that the port
732 is situated within the disconnect of the semi-circular wall
shape. In use, the port 732 is inserted into the passageway 329 of
the chimney 318 in the lid 304. The port 732 has a narrow diameter
preventing the port from creating a, air-tight seal with the
chimney insert 318. The port 732 has a length that allows it to
extend through the channel 377 between the flaps 374 in the seal
without forming an air-tight seal. This allows easy introduction of
liquid into the syringe body 302 with simultaneous venting of any
trapped air within the syringe body chamber. A distal end of the
support 734 contacts the lid 304 without applying any pressure to
the lid. This alignment of the support 734 and the lid 304 assists
to prevent the port 732 from inserting an unwanted distance into
the chimney 314, as shown in FIG. 26. The semi-circular shape of
the support 732 corresponds with the cone shape of the lid 304 to
maintain an even distribution of support.
[0102] Similarly to the alternative cap 500A described above, the
position of the port, funnel and support in the adaptor 704 can be
turned ninety degrees and centered to aligned along the minor (Y)
axis.
[0103] Similarly to the caps 500, 410 described above, the adaptor
700 can include a pair of similarly-designed teeth grips 736 that
extend inwardly from the interior surface of the base region 710.
The teeth grips 736 can extend from diametrically opposed locations
along the major (X) axis of the base region 710. Alternatively,
additional teeth grips 736 at alternative locations can be
effective. The teeth grips 736 are preferably co-molded with the
adaptor 704. The shape of the teeth grips 736 is designed to
removably insert into the circumferential groove 312 between the
lid 304 and the syringe body 302. The resilient force of the base
region 710 presses the teeth grips 736 into the circumferential
groove 312 when the base region is in a relaxed state, thus
preventing the adaptor 704 from involuntary removal during use.
Applying simultaneous inward pinching pressure to opposing ends of
the base 710 major (X) axis elongates the minor (Y) axis and
removes the teeth grips 736 out of the circumferential groove 312
so that the adaptor 704 can be removed. Similarly to the caps 500,
410 described above, the teeth grips 736 preferably insert between
the pair of ribs 306 in the groove 312 to prevent the adaptor 704
from rotating within the groove.
[0104] The syringe body 302 can alternatively have a marker 706
that aligns with a corresponding marker 706 on the adaptor 704 when
the adaptor is secured to the syringe body. As depicted in FIG. 26,
the markers 702, 706 can be elongated etchings on the exterior
surface of the syringe body 302 and adaptor 704, however,
alternative shapes are considered effective. The markers 702, 706
can alternatively be bodies protruding from the outer surface or
surface indicators.
[0105] A commercially-available nipple attachment is shown in FIGS.
27-29 to secure to the syringe body 302 through an adaptor 810
described above. The nipple attachment 800 includes a flexible
nipple 802, for example an Abbot.RTM., or Evenflo.RTM. brand
nipple. The nipple 802 has a circumferential lip 804 that is
secured between a threaded collar/ring 806 and an adaptor 810. When
the nipple 802, threaded collar/ring 806 and adaptor 810 are
secured to the syringe body 302, liquid contained within the
syringe body can be forced outward through the nipple.
[0106] The threaded collar/ring 806 has a circumferential top
surface 822 with a central aperture through which the nipple 802
extends upwardly. The handle 806 also has a circumferential
underhang 824 positioned in a parallel plane beneath the top
surface 822. A grip surface 820 extends circumferentially
perpendicular between the top surface 822 and the underhang 824. A
fastening mechanism 826, for example a snap-on feature, extends
along the inner facing surface of the vertical grip surface 820.
The snap-on feature 826 can secure to a corresponding snap-on on
the adaptor 810, as described below. Preferably, the threaded
collar/ring 806 is integrally molded as a unitary structure.
[0107] The depicted adaptor 810 includes an outer collar 830
positioned perpendicularly to a shelf 836. The collar 830
preferably has an elliptical circumference similar to the caps 500,
410 described above. The shelf 836 can have a generally circular
circumference. As depicted, the shelf 836 can have a
circumferential wall extending perpendicularly away from the edge
of the circular shelf and a fastening mechanism 833, for example a
snap-on feature, to cooperate with the fastening mechanism 826. The
lip 804 of the nipple 802 is secured between the lid 822 and the
shelf 836. Several ribs 838 extend perpendicularly upward from the
shelf 836 and align with the interior surface of the nipple 802 to
prevent the nipple 802 from collapsing during use. Alternatively,
the ribs 838 can be a single circumferential structure that lines
the entirety of the internal surface of the nipple 802.
[0108] FIG. 29 presents an alternative nipple attachment 900 to
that shown in FIG. 28. The attachment embodiment 900 has a
generally-consistent construction, design and function as the
attachment 810, but includes an extended anti-collapse seal 908
instead of the anti-collapse ribs 838. The anti-collapse seal 908
includes a support section 904 that conforms to the shape of the
nipple 802 and a barrier section 906 that extends from the ends of
the support section. The anti-collapse seal 908 includes a
resiliently-sealable aperture 912 near the center of the barrier.
The anti-collapse seal 908 ensures an air-tight seal that allows
for use without a movable plunger 808.
[0109] Similarly to the caps 500, 410 described above, the adaptor
collar 830 is preferably constructed of resiliently-flexible
material, for example plastic and has an elliptical shape with a
major (X) axis and a minor (Y) axis. In use, pinching pressure
applied simultaneously to the opposing ends of the major (X) axis
of the adaptor collar 830 causes the resiliently-flexible collar to
change its shape to shorten the major (X) axis and lengthen the
minor (Y) axis. When this simultaneous pressure is released, the
resiliently-flexible collar 830 returns to the pre-pressure relaxed
state and dimensions.
[0110] A support 842, similar to the cap 500 described above,
extends downardly from the shelf 836. The support 842 can have a
semi-circular wall shape with a disconnect and the support 842 can
be positioned with respect to the shelf 836 such that an
enteral-only tip 840 is positioned within the disconnect of the
semi-circular wall shape. The enteral-only tip 840 extends from the
underside of the shelf 836, as depicted. The enteral-only tip 840
forms an air-tight interference or friction-fit seal with the
chimney insert 318, similarly to the plug 516 described above. A
cover seal 839 can extend across the opening of the enteral-only
tip 840 to prevent entry and exit of ambient air with respect to
the syringe body 302. The cover seal 839 ensures an air-tight seal
that allows for use without a movable plunger 808. In use, when the
enteral-only tip 840 is inserted into the chimney insert 318, a
distal edge of the support 842 contacts the lid 304. This alignment
of the support 842 and the lid 304 assists to prevent the
enteral-only tip 840 from inserting an unwanted distance into the
chimney 314. The semi-circular shape of the support 842 corresponds
with the cone shape of the lid 304 to maintain an even distribution
of support. The port 840 and support 842 can be aligned off-center
along the major (X) axis within the adaptor collar 830.
[0111] A pair of teeth grips 832, similar in design, construction
and function to the teeth 416, 514 described above, extend inwardly
from the interior surface of the collar 830. As depicted, pair of
teeth grips 832 can extend from diametrically opposed locations
separated along the minor (Y) axis of the collar 830.
Alternatively, additional pairs of teeth grips at alternative
locations can be effective. The teeth grips 832 are preferably
co-molded with the adaptor 810. The shape of the teeth grips 832 is
designed to removably insert into the continuous groove 312 between
the lid 304 and the syringe body 302. The resilient force of the
collar 830 presses the teeth grips 832 into the continuous groove
312 when the collar is in a relaxed state, thus preventing the
adaptor 810 from involuntary removal during use. Applying
simultaneous inward pinching pressure opposing ends of the major
(X) axis of the collar 830 elongates the minor (Y) axis and removes
the teeth grips 832 out of the continuous groove 312 so that the
adaptor 810 can be removed. The teeth grips 832 preferably inserted
between the pair of ribs 306 in the continuous groove 312 to
prevent the collar 830 from rotating within the groove.
[0112] Alternatively, as shown in FIGS. 30-32, a nipple attachment
962 with a commercially-available nipple 964 secured to a handle
can be secured to an alternative adaptor 960. The nipple 964 is
secured beneath a circumferential lid 966 with a circumferential
handle 968 having an internal threaded surface 970. The adaptor 960
has an outer wall with a corresponding circumferential threaded
surface 976 that can secure to the handle threaded surface 970. The
adaptor 960 includes a collar 972 that is positioned within the
circumference of the outer wall circumferential threaded surface
976. The collar 972 has a greater height than the outer wall
circumferential threaded surface 970. The collar 972 can have an
elliptical circumference with a major (X) axis and a minor (Y)
axis. Similarly to the breast-pump adaptor 704 described above, the
nipple adaptor 960 has an elongated port 980 with a proximal
opening 989 and a distal opening 991 extending from a shelf 975.
The nipple adaptor 960 also has a support 978 that is depicted to
have a semi-circular wall shape with a disconnect. As depicted, the
port 980 is positioned within the disconnect of the support 978.
Similarly to the alternative cap 500A, the port 980 and the support
978 can be centrally-aligned along the minor (Y) axis within the
collar 972. The adaptor 960 can also include a raised platform or
seal 957 secured with respect to the top surface and interfacing
with the nipple 964. This raised platform or seal 957 can be a
ring-shape constructed of flexible material, for example rubber or
silicone. The seal 957 can have an adjustable dimension, for
example diameter, and is preferably ribbed, to allow for venting of
trapped air. The nipple 964 rests with respect to the raised
platform or seal 957 so as to allow the venting of air as liquid
passes through towards and outward from the nipple.
[0113] In use, the distal opening 991 of the port 980 inserts into
the passageway 320 in the above-described chimney insert 318 until
it forms a friction-fit similar to that with the enteral-only tip
400. The friction fit is air-tight and prevents unwanted material
from entering or exiting the syringe body 302 during use.
[0114] The adaptor collar 972 is preferably constructed of
resiliently-flexible material, for example plastic and has an
elliptical shape with a major (X) axis and a minor (Y) axis. In
use, pressure applied simultaneously to the opposing ends of the
major (X) axis of the adaptor collar 972 causes the
resiliently-flexible collar to change its shape to shorten the
major (X) axis and lengthen the minor (Y) axis. When this
simultaneous pressure is released, the resiliently-flexible collar
972 returns to the pre-pressure relaxed state and dimensions.
[0115] A pair of teeth grips 974 similar in design, construction
and function to the teeth 416, 514 described above extend inwardly
from the interior surface of the collar 972. As depicted, the pair
of teeth grips 974 can extend from diametrically opposed locations
separated along the minor (Y) axis of the collar 972.
Alternatively, additional pairs of teeth grips at alternative
locations can be effective. The teeth grips 974 are preferably
co-molded with the adaptor 960. The shape of the teeth grips 974 is
designed to removably insert into the continuous groove 312 between
the lid 304 and the syringe body 302. The resilient force of the
collar 830 presses the teeth grips 832 into the continuous groove
312 when the collar is in a relaxed state, thus preventing the
adaptor 810 from involuntary removal during use. Applying
simultaneous inward pinching pressure opposing ends of the major
(X) axis of the collar 830 elongates the minor (Y) axis and removes
the teeth grips 832 out of the continuous groove 312 so that the
adaptor 810 can be removed. The teeth grips 832 preferably inserted
between the pair of ribs 306 in the continuous groove 312 to
prevent the collar 830 from rotating within the groove.
[0116] While the invention has been described with reference to
preferred and example embodiments, it will be understood by those
skilled in the art that a variety of modifications, additions and
deletions are within the scope of the invention, as defined by the
following claims.
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