U.S. patent number 3,796,359 [Application Number 05/160,324] was granted by the patent office on 1974-03-12 for disposable hypodermic needle destroyer.
Invention is credited to Peter Dick.
United States Patent |
3,796,359 |
Dick |
March 12, 1974 |
DISPOSABLE HYPODERMIC NEEDLE DESTROYER
Abstract
A portable hypodermic needle destroyer is provided having an
axial opening to receive the needle and allow the user to safely
grip the needle and snap it off from the syringe and provide a safe
holder for the needle. In one form of the invention the opening is
provided in the sheath having a diaphragm to maintain the sterility
of the syringe allowing the needle and destroyer to be disposed as
a unit. In another form the jaws of the destroyer are adjustable
having separate jaw closing fingers and the needle is safely
disposed within a container.
Inventors: |
Dick; Peter (Brooklyn, NY) |
Family
ID: |
22576430 |
Appl.
No.: |
05/160,324 |
Filed: |
July 7, 1971 |
Current U.S.
Class: |
225/93; 206/365;
604/197; 81/487; 604/110 |
Current CPC
Class: |
A61M
5/3278 (20130101); Y10T 225/30 (20150401); A61M
2005/3282 (20130101) |
Current International
Class: |
A61M
5/32 (20060101); B26f 003/00 () |
Field of
Search: |
;225/103,104,93,94,102
;81/3R ;83/167,925R ;241/99 ;206/43
;128/218R,218S,218D,218DA,219,220,215 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Yost; Frank T.
Attorney, Agent or Firm: Miskin; Howard C.
Claims
1. A portable needle destroyer of a hypodermic needle on a
disposable syringe comprising a needle covering sheath adapted to
be removably mounted on said syringe, said sheath having a body
defining an interior volume to receive said needle when said sheath
is mounted on said syringe, said body having a closed tip at the
end remote from said syringe and containing a longitudinal
passageway communicating with said volume, said passageway having
an entrance at the outer end of said tip and having an
2. A portable destroyer of a hypodermic needle on a disposable
syringe comprising a needle covering sheath removably mounted on
said syringe, said sheath having a body defining an interior
volume, said body containing a longitudinal passageway in the end
of said sheath communicating with said volume, said passageway
having an entrance which is conical to aid in locating the
passageway for the needle and having an interior diameter to snugly
receive said needle, a diaphragm intermediate of the ends of said
passageway being cloer to the outer tip of said sheath, the portion
of the passageway interiorly of the diaphragm having a
3. A needle destroyer as in claim 1 wherein said sheath is formed
of a
4. A needle destroyer as in claim 1, wherein said passageway in
said sheath is interrupted by a diaphragm intermediate of its ends.
Description
This invention relates to a new and useful device for the
destruction of hypodermic needles used in conjunction with
disposable hypodermic syringes. This invention more particularly
relates to a device capable of being carried by a nurse or other
person administering parenternal medication which can quickly,
easily and effectively destroy the used hypodermic needle.
With the advent of disposable syringes, each used in conjunction
with its disposable needle, the possibility of cross infection
became greater. An intact syringe and needle, once discarded by the
primary user could transmit hepatitis and other infections, when
used again inadvertently, or if picked up by unauthorized personnel
and used. An intact needle also poses a threat to cleaning and
sanitary personnel, who may be stabbed by the used, infected shaft
while gathering trash. A number of devices have been introduced
into the market to accomplish the necessary destruction of the
needle. However, these devices are of a stationary nature and
require that the used hypodermic syringe be brought to the vicinity
of the destroying device which is oftentimes not readily accessible
at the time of use of the syringe. However, the possibility of
accidental cross-infection exists between the time the syringe is
used and the time the needle is destroyed and the possibility of
the unit falling into the wrong hands, or the unit not being
brought back to the area of destruction is not eliminated.
The principal object of this invention is to provide the medical
practitioner or administrator with a means of destroying the
infection-carrying capacity of the used, disposable hypodermic
syringe-needle combination, immediately after use, at the site of
the administation of the medication.
Another object of the present invention is to provide a portable
hypodermic needle destroyer that is positive acting and simple and
easy to use by nurses, doctors, or the like.
Still another object of the present invention is to provide a
disposable hypodermic needle destroyer that is available to the
administrator of the shot immediately after the shot is given.
A further object of the present invention is to provide a
hypodermic needle destroyer that is portable, inexpensive to
manufacture, easy and safe to use and is positive acting in
operation.
Other objects of the invention will become apparent from the
following description of the embodiments thereof when taken in
conjunction with the drawing, which accompanies the specification
wherein:
FIG. 1 is a front elevational, sectional view through a sheath
covering the lower portion of a hypodermic needle, in accordance
with the present invention;
FIG. 2 is a fragmentary cross-sectional elevational view of the
upper portion of the sheath showing the hypodermic needle
positioned just prior to its destruction;
FIG. 3 is an enlarged front elevational, cross-sectional view of a
further embodiment of the present invention illustrating broken
needles safely contained;
FIG. 4 is a fragmentary front elevational cross-sectional view of
the structure shown in FIG. 3 being used to destroy a needle;
FIG. 5 is a cross-sectional view taken along line 5--5 of FIG. 4;
and
FIG. 6 is a front elevational fragmentary view illustrating
mounting the needle destroyer to the needle container.
Referring now to the drawings, FIGS. 1 and 2 illustrate one form of
the embodiment in which a resilient sheath 10 is removably mounted
on the end of a disposable hypodermic syringe for covering and
protecting the needle and maintaining the unit in sterilized
condition. The inner diameter of sheath 10 forms a tight frictional
fit with the outer periphery of the syringe and securely covers the
needle 12 of syringe 14. The end of sheath 10 has an axially
aligned opening or passageway 16 therethrough, interrupted by a
diaphragm 18 intermediate of its ends. Advantageously the portion
of passageway 16 at the apex of the outer peripheral surface of
sheath 10 diverges, as indicated at 20 to form a conical
entranceway to aid in introducing the needle 12 as will be
discussed below. Preferably conical portion 20 locates and directs
the needle into passageway 16. The remaining portion of passageway
16, indicated at 22, advantageously has a diameter equal to or
slightly less than the outer diameter of needle 12 to provide a
positive holding action on the needle.
To use syringe 14, sheath 10 is removed and the syringe is used for
the medical purpose desired. To prevent other use being made of
syringe 14, immediately after use, needle 12 is inserted into the
conical guide 20 of passageway 16 in sheath 10 and a pressure
exerted on the syringe forcing needle 12 through diaphragm 18 and
into portion 22. Needle 12 is inserted to its full length into
sheath 10, so that the conical guide 20 abuts the bottom of syringe
14 and the negative clearance of portion 22 of passageway 16
distends sheath 10, thereby positively holding the needle firmly
within sheath 10, as seen best in FIG. 2. The operator or
administrator holding sheath 10 firmly about needle 12 pivots
syringe 14 such as in the direction of arrow 24 whereby needle 12
is snapped off about the lip of conical guide 20. The sheath
fixedly retains the broken needle in portion 22 of opening 16 and
is then reinserted over the end of syringe 14 and the unit may be
safely discarded. Since the destruction of the needle takes place
immediately after the medication or other use is made of syringe
14, there is no change for cross infection nor is there any
possibility of the syringe being used again by unauthorized
personnel, nor can the needle accidently harm any cleaning or
sanitary personnel handling the rubbish or trash in the hospital or
medical office. Since the sheath is readily available after use of
the syringe, the destruction of the needle on the syringe can be
done quickly and safely immediately after use.
A further embodiment of the invention is illustrated in FIGS. 3
through 6 in which a portable needle and destruction unit 26 is
shown. Unit 26 has a needle clamping body 27 shown with a resilient
three jawed chuck and containing an open end interior volume 40.
Also, body 27 could have four, five or more jaws. The jaws 28 of
the chuck are adjustable advantageously from a zero orifice to an
orifice capable of accepting at least a 13 gauge hypodermic needle
and in unrestrained condition remain in maximum open position. The
outer surfaces of the ends of jaws 28 are tapered as indicated at
29. Body 27 has a cylindrical skirt portion 30 extending downwardly
from jaws 28 which has a pair of outwardly directed radial
shoulders 34 intermediate of its ends and on opposite sides. The
portion of skirt 30 between jaws 28 and shoulders 34 is threaded as
indicated at 32. Skirt 30 has on opposite sides of each of
shoulders 34, a pair of longitudinally extending slits 37 defining
a pair of arms 36. Extending along arms 36 are outwardly directed
ribs 38. Arms 36 terminate in an outwardly directed lip 39. Body 27
contains a longitudinal passageway 41 extending between jaws 28,
which communicates with interior volume 40. The outer ends of jaws
28 have an interiorly directed finger 42 for gripping the needle in
a manner to be discussed below.
Mounted about the outer surface of body 37 is a jaw closer 43
having beveled fingers 44 which slidably engage the tapered outer
surface 29 of jaws 28 and form cam surfaces for interacting with
the tapered surfaces of jaws 28. The inner bottom portion of jaw
closer 43 is threaded at 46, which threads mate with threads 32 on
body 27.
Mounted on the open end of body 27 is container 48 which has a
reduced neck portion 50 with an interior diameter to cooperatively
receive the outer diameter of lower portion of skirt 30. Neck 50
has a pair of longitudinally extending grooves 52 on opposite
sides, seen best in FIG. 5, which matingly receive ribs 38. Neck 50
is of a length substantially the distance between the lower surface
of shoulders 34 and the upper surface of lips 39 to securely hold
container 48 on body 27. Container 48 has an interior volume 54 for
holding destroyed needles. For safety purposes, a bactericidal
compound 56 is inserted within volume 54 prior to use, as shown in
solid form, which will prevent the compound from spilling out if
the container is inverted. The bactericidal compound could also be
in jellied or highly viscous form or soaked in cotton or the like.
To have container 48 reusable, a cap 58 is securely mounted on the
bottom of container 48 and held in position either by a force or
friction fit, clamp or is threaded.
To hold unit 26 in a pocket of the user, a cap 60 is positioned
over body portion 27 and snugly engages neck 50 of container 48. A
clip 62 on cap 60 allows unit 26 to be fastened in the pocket of
the user.
In operation, after use of syringe 64, the user inserts a needle 66
on syringe 64 within opening 41 such as shown in FIG. 4.
Cylindrical jaw closer 43 is rotated to urge FIGS. 44 downwardly on
tapered surface 29 of jaws 27 which closes fingers 42 on the ends
of jaws 27 tightly against needle 66. The syringe 64 is bent as
illustrated in FIG. 4, thereby snapping needle 66 off adjacent the
bottom of syringe 64. Upon unthreading jaw closer 43, needle 66 is
released and falls within volume 54 of container 48 into the
bactericidal or bacteriastatic compound 56. The used needles as
shown in 68 can do no further harm of cross-infection or
unauthorized use.
As seen by rotating jaw closer 43, fingers 44 move along the
tapered surfaces 29 on jaws 27 forcing jaws 27 to be tightly closed
when closure 43 is moved downwardly on body 27 as shown in FIG. 4
or allows jaws 27 to open due to the inherent resilience of body 27
when moved upwardly as shown in FIG. 3. To replace container 48, an
inward pressure is exerted on shoulders 34, as seen best in FIG. 6,
allowing arms 36 to be flexed inwardly thereby disengaging lips 39
from the underside of neck 50 and container 48 can be slid off of
lower portion of skirt 30.
Advantageously, body 27 can be made out of tough, durable,
resilient plastic or a resilient metal. Similarly, container 48
should be of transparent plastic to allow easy visibility as to
when it should be emptied or discarded. Also, other means of
mounting container 48 to body 27 than that shown, such as threads
or clamps, can be used.
It will be evident to persons skilled in the art that this
invention can be adapted to various other uses and situations, and
that various changes and modifications can be made all within the
scope and spirit of this invention. It is therefore to be
understood that any patent issuing, is not limited to the
modifications disclosed herein, or in any manner other than by the
scope of the appended claims when given the range of equivalents to
which this patent may be entitled.
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