U.S. patent application number 10/057602 was filed with the patent office on 2002-06-06 for nasal cannula retainer.
Invention is credited to Berzon, David Michael, Kessler, Fred Bruce.
Application Number | 20020066452 10/057602 |
Document ID | / |
Family ID | 22358670 |
Filed Date | 2002-06-06 |
United States Patent
Application |
20020066452 |
Kind Code |
A1 |
Kessler, Fred Bruce ; et
al. |
June 6, 2002 |
Nasal cannula retainer
Abstract
A nasal cannula retainer has a flexible member and cannula
grips. The flexible member has a central nose portion with an
adhesive backing for adhering to a patient's nose and two cheek
portions connected to the nose portion, each of the cheek portions
having an adhesive backing for adhering to a patient's cheek. The
adhesive layers are covered with a peel layer which is removed
prior to applying the retainer. The cannula grips are attached to
the cheek portions to secure a nasal cannula on each of the
patient's cheeks. The grips are releasable and reusable, allowing
the cannula to be repositioned or temporarily removed without the
need for the retainer to be discarded and replaced, and without the
use of tape to secure the cannula to the retainer after the cannula
is repositioned.
Inventors: |
Kessler, Fred Bruce;
(Beachwood, OH) ; Berzon, David Michael; (Pepper
Pike, OH) |
Correspondence
Address: |
Jonathan A. Platt
RENNER, OTTO, BOISSELLE & SKLAR, LLP
Nineteenth Floor
1621 Euclid Avenue
Cleveland
OH
44115-2191
US
|
Family ID: |
22358670 |
Appl. No.: |
10/057602 |
Filed: |
October 29, 2001 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10057602 |
Oct 29, 2001 |
|
|
|
09114988 |
Jul 14, 1998 |
|
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Current U.S.
Class: |
128/207.18 ;
604/180 |
Current CPC
Class: |
A61M 2025/024 20130101;
A61M 2025/0226 20130101; A61M 16/0666 20130101; A61M 25/02
20130101 |
Class at
Publication: |
128/207.18 ;
604/180 |
International
Class: |
A61M 015/08 |
Claims
What is claimed is:
1. A nasal cannula retainer comprising: a flexible member for
adhering to a patient; and a pair of releasable and reusable
snap-in clips attached to the flexible member for securing a nasal
cannula on opposite sides of and distal to a nose of a patient.
2. The retainer of claim 1, wherein the flexible member has an
adhesive backing.
3. The retainer of claim 1, wherein the clips have a cross-section
with a generally semi-circular recess therein conforming to a
cannula.
4. The retainer of claim 3, wherein each of the clips includes a
base and a pair of arms extending from the base.
5. The retainer of claim 4, wherein the base and the arms of each
of the clips are a single plastic piece.
6. The retainer of claim 4, wherein each of the arms has a
projection thereupon useable for retaining a cannula.
7. A nasal cannula retainer comprising: a flexible member for
adhering to a patient; and a pair of releasable and reusable grips
attached to the flexible member for securing a nasal cannula on
opposite sides of a nose of a patient; wherein the flexible member
has a central nose portion configured to be in contact with the
nose, and a pair of cheek portions with adhesive backing for
adhering to cheeks of the patient.
8. The retainer of claim 7, wherein the grips are attached to the
cheek portions.
9. The retainer of claim 8, wherein the grips are clamps.
10. The retainer of claim 9, wherein each of the clamps includes a
releasable locking mechanism.
11. The retainer of claim 10, wherein each of the clamps includes a
pair of sections each with a generally semi-circular recess therein
conforming to a cannula, the sections hingedly connected to one
another.
12. The retainer of claim 8, wherein the grips each include a strip
which includes a synthetic material having adhering hooks.
13. The retainer of claim 12, wherein the strip also includes a
synthetic material having loops, the material having hooks
separably adherable to the material having loops so as to secure a
cannula therebetween.
14. The retainer of claim 13, wherein the strip also includes a
connecting section separating the material having loops from the
material having hooks.
15. The retainer of claim 13, wherein one of the materials has an
adhesive backing for attachment to one of the cheek sections.
16. The retainer of claim 8, wherein the grips include means for
retaining a cannula.
17. The retainer of claim 7, wherein the central nose portion has
adhesive backing for adhering to the nose.
18. A method of releasably retaining a nasal cannula, comprising
the steps of: adhering a nasal cannula retainer having a pair of
releasable and reusable adhesiveless grips to a patient such that
the grips are on opposite sides of and distal to a nose of the
patient; and securing the nasal cannula with the grips.
19. The method of claim 18, wherein the grips are clamps each with
a releasable locking mechanism, and the step of securing includes
placing the cannula into the clamps and locking the clamps.
20. The method of claim 18, wherein the grips each include a strip
which includes a synthetic material having adhering hooks and a
synthetic material having loops, and the step of securing includes
adhering the material having hooks to the material having loops so
as to secure the cannula therebetween.
21. A method of releasably retaining a nasal cannula, comprising
the steps of: adhering a nasal cannula retainer having a pair of
releasable and reusable grips to a patient such that the grips are
on opposite sides of a nose of the patient, the adhering including
removing a peel layer which covers an adhesive backing of cheek
portions of the retainer, positioning the retainer over the nose,
and pressing the adhesive backing against cheeks of the patient;
and securing the nasal cannula with the grips at the cheek
portions.
22. A nasal cannula retainer comprising: a bendable substrate
having an adhesive layer thereon for adhering to a patient; and a
pair of releasable adhesiveless fasteners attached to the substrate
for holding the cannula, the fasteners being on opposite sides of
and distal to a nose of the patient.
23. The retainer of claim 22, wherein the substrate includes parts
for adhering the retainer to the nose and to cheeks of the
patient.
24. The retainer of claim 22, wherein the fasteners are snap-in
clips.
25. The retainer of claim 24, wherein the snap-in clips are made of
a resilient material.
26. The retainer of claim 25, wherein the clips have a
cross-section with a generally semi-circular recess therein
conforming to a cannula.
27. The retainer of claim 26, wherein each of the clips includes a
base and a pair of arms extending from the base.
28. The retainer of claim 27, wherein the base and the arms of each
of the clips are a single plastic piece.
29. The retainer of claim 27, wherein each of the arms has a
projection thereupon useable for retaining a cannula.
Description
[0001] This is a continuation of U.S. Application Ser. No.
09/114,988, filed Jul. 14, 1998.
FIELD OF THE INVENTION
[0002] The invention is directed to a means for securing nasal
cannulae, and more specifically to nasal cannulae which are used to
provide oxygen to a patient.
BACKGROUND OF THE INVENTION
[0003] Currently nasal cannulae are held in place by routing the
cannula tubing over the ears of a patient and retaining them on the
patient's head by use of elastic bands. This routing has a
disadvantage in that the cannula often becomes dislodged from the
patient's nose when the patient moves. In addition, such a routing
is uncomfortable for the patient, especially when the cannula must
be in place for long periods of time, as is common. For example,
the patient's skin may become chafed and irritated by movement of
the patient's head, and the cannula may be pulled when the patient
moves during sleep.
SUMMARY OF THE INVENTION
[0004] A nasal cannula retainer has a flexible member and cannula
grips. The flexible member has a central nose portion with an
adhesive backing for adhering to a patient's nose and two cheek
portions connected to the nose portion, each of the cheek portions
having an adhesive backing for adhering to a patient's cheek. The
adhesive layers are covered with a peel layer which is removed
prior to applying the retainer.
[0005] The cannula grips are attached to the cheek portions to
secure a nasal cannula on each of the patient's cheeks. The grips
are releasable and reusable, allowing the cannula facilely to be
repositioned or temporarily removed without the need for the
retainer to be discarded and replaced, and without the use of tape
to secure the cannula to the retainer after the cannula is
repositioned. Since the grips do not use an adhesive, there is no
adhesive residue on a repositioned cannula that otherwise might
cause the cannula to become dirty or to stick to the patient or to
other items.
[0006] The nasal cannula retainer of the present invention offers
several other advantages over the various prior devices: the
cannula grips are securely attached to the patient, better and more
securely anchoring the cannula when compared with devices which
attach to the cannula by means of flexible tape strips or loops;
the cannula grips are attached to the patient's cheeks, where they
are close enough to where the cannula enters the patient's nose to
minimize the problem of the cannula becoming dislodged from the
nose or misaligned relative to the nostril(s) when the patient
moves his or her head, and where the retainer does not interfere
with the patient's eating or drinking and does not get soiled by
eating and drinking; and the flexible member is attached to both
the nose and cheeks of the patient, so that any forces tending to
pull off the retainer are spread over a large area.
[0007] The grips have many possible designs. Some of the possible
designs for the grips are enumerated below, although the invention
is not limited to these designs.
[0008] The grips may be snap-in clips made of a resilient material,
each grip having either a single piece or multiple pieces. Such
clips may have a semicircular recess conforming to the cannula.
Alternatively, the clips may each include a base portion and
protrusions attached to the base, the protrusions securing the
cannula when it is snapped into the clip.
[0009] The grips may be hinged clamps with a releasable locking
device, each section of a clamp having a semi-circular recess
conforming to the shape of the cannula.
[0010] The grips may include a strip or strips made of synthetic
material with separable adhering hooks and loops, such as the
material sold under the trademark VELCRO.
[0011] According to one aspect of the invention, a nasal cannula
retainer includes a flexible member for adhering to a patient, and
a pair of releasable and reusable grips attached to the flexible
member for securing a nasal cannula on opposite sides of a nose of
a patient.
[0012] According to another aspect of the invention, a method of
releasably retaining a nasal cannula includes the steps of adhering
a nasal cannula retainer having a pair of releasable and reusable
grips to a patient such that the grips are on opposite sides of a
nose of the patient, and securing the nasal cannula with the
grips.
[0013] According to yet another aspect of the invention, a nasal
cannula retainer includes a bendable substrate having an adhesive
layer thereon for adhering to a patient, and a pair of releasable
fasteners attached to the substrate for holding the cannula, the
fasteners being on opposite sides of a nose of the patient.
[0014] To the accomplishment of the foregoing and related ends, the
invention comprises the features hereinafter fully described and
particularly pointed out in the claims. The following description
and the annexed drawings set forth in detail certain illustrative
embodiments of the invention. These embodiments are indicative,
however, of but a few of the various ways in which the principles
of the invention may be employed. Other objects, advantages and
novel features of the invention will become apparent from the
following detailed description of the invention when considered in
conjunction with the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In the annexed drawings:
[0016] FIGS. 1A and 1B are front and back views, respectively, of a
nasal cannula retainer of the present invention;
[0017] FIG. 1C is a cross-sectional view of a portion of the nasal
cannula retainer looking along line 1C-1C of FIG. 1A;
[0018] FIG. 2 is plan view of the nasal cannula retainer shown in
FIG. 1, securing a cannula in the nostrils of a patient;
[0019] FIG. 3 is a side view of a snap-in clip which may be used
for gripping a nasal cannula as part of the retainer of the present
invention;
[0020] FIGS. 4A and 4B are plan and side views, respectively, of a
snap-in clip with protrusions which may be used for gripping a
nasal cannula as part of the retainer of the present invention;
[0021] FIG. 4C is a top plan view of the clip of FIGS. 4A and 4B
showing a nasal cannula retained in position therein;
[0022] FIG. 4D is an end view of a grip similar to that shown in
FIGS. 4A-4C but with curved protrusions;
[0023] FIG. 5 is a side view of a releasable clamp type clip which
may be used for gripping a nasal cannula as part of the retainer of
the present invention; FIG. 6 is a side view of a clip formed of a
folded strip of synthetic material having adhering hooks and loops
at respective ends, which may be used for gripping a nasal cannula
as part of the retainer of the present invention;
[0024] FIG. 7 is a side view of a clip formed by a pair of strips
of synthetic material respectively having adhering hooks and loops,
which may be used for gripping a nasal cannula as part of the
retainer of the present invention; and
[0025] FIG. 8 is a side elevation schematic view of a portion of a
nasal cannula retainer according to an embodiment of the invention
showing placement of a clip thereof.
DETAILED DESCRIPTION
[0026] Referring initially to FIGS. 1A-1C and 2, a nasal cannula
retainer 10 is used to retain a nasal cannula 12 such that outlet
ports 14 of the cannula 12 remain in nostrils 16 of patient 20. The
retainer 10 includes a flexible member 22 which has a central nose
portion 24 and a pair of cheek portions 26. The member 22 may be
made out of materials commonly used for medical devices where skin
contact, conformability and flexibility are required. Several
non-limiting examples of such material include plastic, cloth or
fabric or other materials which can provide the functions
requirements described herein.
[0027] The member 22 has an adhesive backing 27, covered prior to
use by a peel layer 28. The peel layer 28 is removable from the
adhesive backing 27 with the aid of one or more tabs 29 attached to
the peel layer 28. The adhesive backing 27 on the member 22 is used
to adhere the member 22 to the patient 20. Specifically, the nose
portion 24 is adhered to a nose 30 of the patient 20, and the cheek
portions 26 are adhered to cheeks 32 of the patient 20. The
adhesive material forming the adhesive backing may be located only
at selected areas (less than all) of the member 22, examples being
at the nose portion 24 and/or at the cheek portions 26. Preferably
the adhesive backing is at the nose and cheek portions. If desired,
the adhesive backing 27 may cover the entire or substantially the
entire surface of the member 22 for adhering the member 22 to the
face of a patient, e.g., as is illustrated in FIG. 2.
[0028] The retainer 10 has releasable grips 34, schematically
illustrated in FIGS. 1A-1C and 2, which are glued or otherwise
attached to the cheek portions 26. The grips 34 retain the cannula
12 in two locations 36, 38 on opposite sides of the nose 30.
Several grips which may be used in the retainer 10 are described
below with respect to several other drawing figures; these are
exemplary, and it will be appreciated that other types of grips may
be used in accordance with the present invention.
[0029] The grips 34 are securely attached to the patient 20 via the
cheek portions 26; this provides better anchoring of the cannula 12
when compared with devices which attach a cannula by means of
flexible tape strips or loops. Retaining the cannula 12 at
locations 36, 38 close to the cheeks 32 of the patient 20 minimizes
the problem of the outlet ports 14 becoming dislodged from the
nostrils 16 when the patient 20 moves his or her head. Also,
locating the flexible member 22 and the grips 34 away from mouth 40
of the patient 20 keeps the retainer 10 from getting soiled when
the patient 20 eats or drinks.
[0030] The relatively wide extent or area of the retainer 10
provides increased stability when compared with prior art devices.
Also, the flexible member 22, being attached to the patient 20 over
a large area encompassing parts of both the nose 30 and the cheeks
32, e.g. by the adhesive 27, is well-secured against forces tending
to pull away or otherwise to dislodge the retainer 10 from the
patient 20.
[0031] The grips 34, being releasable and reusable, allow the
cannula 12 to be repositioned or temporarily removed without the
need for the retainer 10 to be discarded and replaced, and without
the use of tape to secure the cannula 12 to the retainer 10 after
the cannula 12 is repositioned. Since the grips 34 do not
ordinarily require an adhesive to secure them to the cannula 12,
there is no adhesive residue on a repositioned or reattached
cannula; such adhesive residue might otherwise cause the cannula to
become dirty or to stick to the patient or to other items.
[0032] One method of adhering the grips 34 to the flexible member
22 is shown in FIG. 1C. There the grip 34 is shown with a
protruding base 42, which is immersed in an adhesive layer 44, and
is covered by an upper layer 46 of flexible material. The adhesive
of the layer 44 may be the same as that of the backing 27, and the
material of the upper layer 46 may be the same as that of the
member 22. The adhesive layer 44 holds together the retainer 22,
grip 34 (including the protruding base 42) and the layer 46; and
the protruding base 42 (e.g., the illustrated extending flange
portions thereof) is sandwiched between the retainer 22 and the
layer 46 for secure retention and protection of that portion of the
base and of the grip itself. It will be appreciated that many other
techniques may be used to secure the grips 34 to the flexible
member 22.
[0033] Many possible forms of grip 34 can be employed. One
embodiment is a snap-in clip 50 shown in FIG. 3. The clip 50 has a
base 52 and a pair of arms 54 extending from the base 52. The base
52 and the arms 54 may be formed as a single piece. The base 52 and
the arms 54 cooperate to enclose a recess 56 in the clip 50. The
recess 56 has a substantially semi-circular cross-section. The arms
54 are made of a resilient material. For example, the clip 50 may
be a molded plastic device. As the cannula 12 is pressed down along
the opening 58, the arms 54 flex outward and the cannula 12 deforms
such that the cannula 12 can enter into the recess 56. Projections
60 on the arms 54 retain the cannula 12 in the recess 56. The
cannula 12 can be released from the clip 50 by flexing the arms 54
outward such that the projections 60 are sufficiently far apart to
allow the cannula 12 to exit through the opening 58. If the cannula
is flexible and resilient, it can be squeezed to slide past
projections 60 for insertion into or removal from the clip 50,
after which the cannula resiliently expands to its normal
shape.
[0034] FIGS. 4A, 4B and 4C show an alternative embodiment of grip
in the form of a clip 70. The clip 70 has a base 72 and
protrusions, bumps, legs or posts 74, which are arranged in a pair
of rows (preferably parallel rows) and are attached to the base 72.
The clip 70 may be of rigid material or resilient material. For
example, the clip 70 may be a molded plastic device or a rubber
device. The cannula 12 is pressed down onto the clip 70 along
direction 76, between the two rows of protrusions, which may
provide an interference fit for the cannula 12. The protrusions 74
may be relatively stiff or rigid, and in such case the cannula 12
resiliently deforms slightly where it is compressed between
respective protrusions, for example, as is illustrated
schematically in FIG. 4C; and friction between the cannula and
protrusions holds the cannula in the clip 70. Alternatively, the
protrusions 74 may be resilient, and, thus, they move apart to
permit the cannula 12 to enter and then to lock the cannula 12 in
place after it snaps into place between respective rows of
protrusions.
[0035] As another alternative, clip 70'shown in FIG. 4D (primed and
double primed reference numerals designate parts that are similar
to those designated by the corresponding unprimed reference
numeral) has curved protrusions 74'. In such case the cannula 12 is
pressed through the area 76 between respective opposite pairs of
protrusions 74'into the area 78 of the clip 70'. The area 76 is
narrower than the width or outside diameter of the cannula 12.
Therefore, either the protrusions 74'or the cannula 12 or both
deform(s) to allow the cannula to be pressed past the area 76 into
the area 78 for retention therein. The curved distal ends 74" of
the protrusions 74'retain the cannula 12 in the area 78 of the clip
70', and interference fit of the cannula 12 with protrusions 74',
e.g., as in FIG. 4C, also may hold the cannula in the clip 70'.
[0036] FIG. 5 shows another embodiment of grip 34, a hinged clamp
80. The clamp 80 consists of two halves 82 hingedly connected at a
hinge point 84, such as a hinge pin, a flexible hinge, integral
molded hinge as part of the halves 82 or the like. The halves 82
have semicircular inner surfaces 86 that combine when the clamp 80
is closed to secure the cannula 12 between the halves 82. The clamp
80 has a releasable locking mechanism, such as the mechanism shown
in FIG. 5 as including a pair of releasable interlocking hooks 88,
90, the hook 88 made of a resilient material such that it can
resiliently deform, slide past and grab on to the hook 90.
[0037] FIG. 6 shows another embodiment of grip in the form of a
clamping device 100 which includes a strip or strips 102, 104 made
of synthetic material with separable adhering hooks 106 and loops
108, such as the material sold under the trademark VELCRO. The
clamping device 100 shown in FIG. 6 traps and secures the cannula
12 between the strip of material 102, which has hooks 106, and the
other of the strip 104 which has loops 108 or fluffy material,
which cooperate with the hooks to hold the strips 102, 104
together. One of the strips 102 may have an adhesive backing 109
for adhering to the flexible member 22, or some other means may be
used for such purpose. As is illustrated in FIG. 6, the strips 102,
104 are a single piece of material which is folded at 109, e.g.,
the fold serves as a hinge, and the hooks 106 and loops 108 are at
respective distal ends of the material. Alternatively, the strips
102, 104 may be separate and each may have hooks and loops
respectively at opposite ends to cooperate with those on the other
strip to hold the two strips together to retain the cannula 12
therebetween, e.g., as is depicted in FIG. 7 described below.
[0038] Another grip in the form of a clamping device 120 shown in
FIG. 7 is similar to the device 100 of FIG. 6. The device 120 has
strips 102', 104'which are connected by a connecting section 124,
thereby preventing loss of one of the strips from the other when
they are not adhered. One of the strips or layers 102', 104'may
have an adhesive backing 129 for adhering to the flexible member
22. The strips 102', 104'also may have VELCRO or VELCRO type
material 130 separably adhering together both ends of both strips
102', 104'on both sides of the cannula 12 as shown, thus holding
the cannula to the retainer 22.
[0039] FIG. 8 is a schematic illustration of an exemplary technique
for the integral formation of the grip 212 to the cheek portion 216
as a single unit. The grip 212 and the cheek portion 216 may be
formed as a single unit, for example, by molding, by heat treating,
or by adding additional hardener in the vicinity of the grip 212 as
the member 202 is formed. The grip 212 is shown schematically and
it is representative of the several exemplary grips described and
illustrated herein and/or of other grips which provide the function
of holding the cannula 12 to the retainer 10.
[0040] Thus the present invention provides a means for releasably
retaining a nasal cannula by securing the cannula with grips
attached to the cheeks of a patient via an adhesive-backed flexible
member. The use of releasable and reusable grips allows the cannula
to be repositioned or temporarily removed without replacing the
retainer or using tape to attach the cannula to the retainer. The
retainer thus is able to achieve a long service life while securely
attaching the cannula to the patient.
[0041] What has been described above are preferred embodiments of
the present invention. It is, of course, not possible to describe
every conceivable combination of components or methodologies for
purposes of describing the present invention, but one of ordinary
skill in the art will recognize that many further combinations and
permutations of the present invention are possible. Accordingly,
the present invention is intended to embrace all such equivalents,
alterations, modifications and variations that fall within the
spirit and scope of the appended claims.
* * * * *