WO1993017735A1 - Unitary injection apparatus incorporating retractable sleeve needle protection apparatus - Google Patents

Unitary injection apparatus incorporating retractable sleeve needle protection apparatus Download PDF

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Publication number
WO1993017735A1
WO1993017735A1 PCT/US1993/002080 US9302080W WO9317735A1 WO 1993017735 A1 WO1993017735 A1 WO 1993017735A1 US 9302080 W US9302080 W US 9302080W WO 9317735 A1 WO9317735 A1 WO 9317735A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
cylindrical
retractable sleeve
longitudinal slats
bore
Prior art date
Application number
PCT/US1993/002080
Other languages
French (fr)
Inventor
Thomas C. Kuracina
Original Assignee
Injectimed, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Injectimed, Inc. filed Critical Injectimed, Inc.
Priority to AU37963/93A priority Critical patent/AU3796393A/en
Publication of WO1993017735A1 publication Critical patent/WO1993017735A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps

Definitions

  • This invention relates to medical devices for injecting living bodies and, more particularly, to safety features incorporated therewith.
  • a disposable syringe having a needle protected with a retractable sleeve comprising, a cylindrical body having an open end and a closed end; a needle having a longitudinal bore therethrough from an inner end to an outer end; a plunger slidably contained in the cylindrical body through the open end; a bore through the closed end carrying the inner end of the needle; and, a retractable sleeve disposed over the needle wherein the retractable sleeve comprises a plurality of longitudinal slats concentrically disposed about the needle parallel thereto and carried on inner ends by the closed end, and an outer end piece having a bore therethrough connecting outer ends of the plurality of longitudinal slats, the bore having the needle passing therethrough whereby the outer end piece can be slid back along the needle from an extended position covering an outer tip of the needle to bow the plurality of longitudinal slats
  • a typical prior art hypodermic syringe 10 includes a barrel 12 having a moving plunger 14 therein.
  • a needle 16 having a sharp beveled tip 18 extends from the end opposite the end of the barrel 12 into which the plunger 14 is inserted.
  • the needle 16 is removably attached over a small cylindrical projection 20 on the end of the barrel 12.
  • the needle 16 is covered by a removeable cap 22 for safety purposes.
  • the problem to be solved and avoided is the accidental sticking of users of the syringe 10 by the tip 18 after use where the tip 18 may carry body fluids containing agents of hepatitis B, AIDS, and the like.
  • Accidental needle stick is a very common problem in the health care industry and besides the risk of serious illness or even death as a result thereof, the insurance industry spends over a billion dollars a year in the testing of individuals who have been subjected to post-use needle stick.
  • the 1979 patent of Alvarez proposed a retractable plastic protective sleeve 24 over the needle 16 as depicted in Figures 3 and 4.
  • the Alvarez sleeve 24 has an inner hub 26 which fits around the base 28 of the needle 16 and an outer hub 30 through which the tip 18 of the needle 16 passes.
  • the inner and outer hubs 26, 30 are connected by curved slats 32.
  • a protective sleeve representative of the Alvarez and Kuracina type sleeves is depicted in its typical prior art form as an add-on device to a hypodermic syringe in Figure 5.
  • the foregoing object has been achieved in a medical device having a needle extending from a body portion thereof, by the improvement of the present invention for protecting the needle with a retractable sleeve comprising, a bore in the body portion carrying an inner end of the needle; a plurality of longitudinal slats concentrically disposed about the needle parallel thereto and carried on inner ends by the body portion; and, an outer end piece having a bore therethrough connecting outer ends of the plurality of longitudinal slats, the bore having the needle passing therethrough whereby the outer end piece can be slid back along the needle from an extended position covering an outer tip of the needle to bow the plurality of longitudinal slats outwardly and expose the outer tip as the outer end piece is moved to a retracted position adjacent the * body portion.
  • the body portion, the plurality of longitudinal slats, and the outer end piece are of unitary construction.
  • the body portion has an outward- extending hub concentrically surrounding the bore in the body portion carrying the inner end of the needle; the plurality of longitudinal slats have the inner ends carried by a cylindrical collar; the plurality of longitudinal slats and the cylindrical collar are of unitary construction; the cylindrical collar has a central bore therethrough having a diameter substantially identical to an outer diameter of the cylindrical hub of the body portion; and, the cylindrical collar is permanently attached to the hub.
  • Figure 1 is a simplified drawing of a prior art hypodermic syringe with the needle and protective cap in place.
  • Figure 2 is a simplified drawing of a prior art hypodermic syringe with the needle and protective cap removed.
  • Figure 3 is a simplified, partially cutaway drawing of a prior art protective sleeve on a hypodermic syringe in its extended position.
  • Figure 4 is a simplified, partially cutaway drawing of a prior art protective sleeve on a hypodermic syringe in its retracted position.
  • Figure 5 is a simplified, partially cutaway drawing of a prior art approach to adding a protective sleeve to a hypodermic syringe as an add-on device.
  • Figure 6 is a simplified, partially cutaway drawing of one embodiment of the present invention for adding a protective sleeve to a hypodermic syringe as an integral part thereof.
  • Figure 7 is a simplified, partially cutaway drawing of another embodiment of the present invention for adding a protective sleeve to a hypodermic syringe as an integral part thereof.
  • Figure 6 shows a first embodiment of the present invention as comprising a unitary syringe 10' comprising a barrel 12 and plunger 14 with a cylindrical projection 34 on the end of the barrel 12 opposite the plunger 14.
  • the projection 34 carries a needle 16 in a central bore 36 thereof.
  • the projection 34 also carries the inner ends of a plurality of slats 38 of a Kuracina type protective sleeve 40.
  • the slats 38 are concentrically disposed about the needle 16 and terminate at their outer ends in an end piece 42 having a preferred transparent bell end for viewing the tip 18 of the needle 16.
  • a locking collar 43 and bias spring 44 are disposed over the slats 38 in the usual manner.
  • a protective hard cover 46 is carried by a peripheral cylindrical shoulder area 48 provided in the projection 34 for the purpose.
  • the projection 34' has a small diameter central portion 50 containing the bore 36 with the needle 16 therein and a cylindrical collar 52 is permanently attached over the central portion with plastic glue,- heat/sonic welding, or the like.
  • the slats 38 and end piece 42 are formed as part of and carried by the collar 52.
  • the outer periphery of the collar forms the peripheral cylindrical shoulder area 48 which supports the hard cover 46.

Abstract

A disposable syringe (10') having a needle (16) protected with a retractable sleeve (40) including a cylindrical body having an open end and a closed end and a needle (16) having a longitudinal bore (36) therethrough from an inner end to an outer end. The retractable sleeve (40) comprises a plurality of longitudinal slots (38) concentrically disposed about the needle (16) parallel thereto and carried on inner end of needle (16) and an outer end piece having a bore therethrough connecting outer ends of the plurality of longitudinal slots (38). The bore has the needle (16) passing therethrough whereby outer end piece can be slid back along the needle from an extended position covering an outer tip (18) of the needle (16) to bow the plurality of longitudinal slots (38) outwardly and expose the outer tip (18) as the outer end piece is moved to a retracted position adjacent the body portion. Preferably, a retractable lacking spring (44) and collar (43) are disposed over the slots.

Description

UNITARY INJECTION APPARATUS INCORPORATING RETRACTABLE SLEEVE
NEEDLE PROTECTION APPARATUS
BACKGROUND OF THE INVENTION:
This invention relates to medical devices for injecting living bodies and, more particularly, to safety features incorporated therewith. In particular, it is related to a disposable syringe having a needle protected with a retractable sleeve comprising, a cylindrical body having an open end and a closed end; a needle having a longitudinal bore therethrough from an inner end to an outer end; a plunger slidably contained in the cylindrical body through the open end; a bore through the closed end carrying the inner end of the needle; and, a retractable sleeve disposed over the needle wherein the retractable sleeve comprises a plurality of longitudinal slats concentrically disposed about the needle parallel thereto and carried on inner ends by the closed end, and an outer end piece having a bore therethrough connecting outer ends of the plurality of longitudinal slats, the bore having the needle passing therethrough whereby the outer end piece can be slid back along the needle from an extended position covering an outer tip of the needle to bow the plurality of longitudinal slats outwardly and expose the outer tip as the outer end piece is moved to a retracted position adjacent the body portion.
In United States Patent No. 4,998,922 by Thomas C. Kuracina entitled SAFETY SYRINGE CAP MINIMIZING NEEDLE-STICK PROBABILITY which issued 12 March 1991, a safety device for hypodermic needles and the like is shown. The inventions shown hereinafter are improvements thereto by inventors including and/or working with Mr. Kuracina. In the interest of simplicity herein, the teachings of that patent are incorporated herein by reference and the discussion of the background art will be kept to a minimum.
As depicted in Figures 1 and 2, a typical prior art hypodermic syringe 10 includes a barrel 12 having a moving plunger 14 therein. A needle 16 having a sharp beveled tip 18 extends from the end opposite the end of the barrel 12 into which the plunger 14 is inserted. The needle 16 is removably attached over a small cylindrical projection 20 on the end of the barrel 12. The needle 16 is covered by a removeable cap 22 for safety purposes. The problem to be solved and avoided is the accidental sticking of users of the syringe 10 by the tip 18 after use where the tip 18 may carry body fluids containing agents of hepatitis B, AIDS, and the like. Accidental needle stick is a very common problem in the health care industry and besides the risk of serious illness or even death as a result thereof, the insurance industry spends over a billion dollars a year in the testing of individuals who have been subjected to post-use needle stick.
The 1979 patent of Alvarez proposed a retractable plastic protective sleeve 24 over the needle 16 as depicted in Figures 3 and 4. The Alvarez sleeve 24 has an inner hub 26 which fits around the base 28 of the needle 16 and an outer hub 30 through which the tip 18 of the needle 16 passes. The inner and outer hubs 26, 30 are connected by curved slats 32. When the needle 16 is to be inserted into the body of a patient, the force required to move the sleeve 24 from its extended position to its retracted position can be depicted as a straight hne beginning with very little required force to initiate movement. Thus, there is really no actually safety from a large variety of ways in which accidental needle stick takes place. Even if the sleeve fully extends after use, a slight blow against a user or observer in the area will cause the sleeve to retract and the tip to stick the unfortunate person. With respect to the action of the basic protective sleeve of the above-referenced Kuracina patent by comparison, a high degree of force is required to move the protective sleeve from its extended position covering the tip. Moreover, a spring- biased locking collar is added over the protective sleeve which all but prevents the protective sleeve from moving from its extended position covering the tip. The collar must be moved from its locked position to a retracted, unlocked position before the unique deformation qualities of the sleeve take effect. After use, the locking collar springs back to its locked position. Thus, in virtually all "accidental" contact with the tip end of a hypodermic syringe, actual penetration by the tip should be prevented.
A protective sleeve representative of the Alvarez and Kuracina type sleeves is depicted in its typical prior art form as an add-on device to a hypodermic syringe in Figure 5.
In a co-pending application entitled MEDICAL INJECTION DEVICES WITH SAFETY FEATURES filed on even date herewith, certain improvements to the Kuracina protective sleeve are disclosed. The invention described hereinafter describes ways of adapting the Kuracina protective sleeve and it various to a single-use, disposable syringe, or the like.
Other objects and benefits of the inventions disclosed herein will become apparent from the detailed description which follows hereinafter when taken in conjunction with the drawing figures which accompany it.
SUMMARY: The foregoing object has been achieved in a medical device having a needle extending from a body portion thereof, by the improvement of the present invention for protecting the needle with a retractable sleeve comprising, a bore in the body portion carrying an inner end of the needle; a plurality of longitudinal slats concentrically disposed about the needle parallel thereto and carried on inner ends by the body portion; and, an outer end piece having a bore therethrough connecting outer ends of the plurality of longitudinal slats, the bore having the needle passing therethrough whereby the outer end piece can be slid back along the needle from an extended position covering an outer tip of the needle to bow the plurality of longitudinal slats outwardly and expose the outer tip as the outer end piece is moved to a retracted position adjacent the * body portion.
In one embodiment, the body portion, the plurality of longitudinal slats, and the outer end piece are of unitary construction.
In another embodiment, the body portion has an outward- extending hub concentrically surrounding the bore in the body portion carrying the inner end of the needle; the plurality of longitudinal slats have the inner ends carried by a cylindrical collar; the plurality of longitudinal slats and the cylindrical collar are of unitary construction; the cylindrical collar has a central bore therethrough having a diameter substantially identical to an outer diameter of the cylindrical hub of the body portion; and, the cylindrical collar is permanently attached to the hub.
DESCRIPTION OF THE DRAWINGS: Figure 1 is a simplified drawing of a prior art hypodermic syringe with the needle and protective cap in place.
Figure 2 is a simplified drawing of a prior art hypodermic syringe with the needle and protective cap removed.
Figure 3 is a simplified, partially cutaway drawing of a prior art protective sleeve on a hypodermic syringe in its extended position.
Figure 4 is a simplified, partially cutaway drawing of a prior art protective sleeve on a hypodermic syringe in its retracted position. Figure 5 is a simplified, partially cutaway drawing of a prior art approach to adding a protective sleeve to a hypodermic syringe as an add-on device.
Figure 6 is a simplified, partially cutaway drawing of one embodiment of the present invention for adding a protective sleeve to a hypodermic syringe as an integral part thereof.
Figure 7 is a simplified, partially cutaway drawing of another embodiment of the present invention for adding a protective sleeve to a hypodermic syringe as an integral part thereof.
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
While a syringe is shown in the accompanying drawings and described in the specification which follows, those skilled in the art will recognize that the principles set forth therein can be adapted to any needle-oriented medical device wherein the benefits of the Kuracina protective sleeve are desired. Accordingly, all such devices should be considered to be within the scope and spirit of the present invention and the breadth of coverage accorded the appended claims should be in keeping with the scope and spirit of the disclosure and not limited by the use of a particular example.
Figure 6 shows a first embodiment of the present invention as comprising a unitary syringe 10' comprising a barrel 12 and plunger 14 with a cylindrical projection 34 on the end of the barrel 12 opposite the plunger 14. The projection 34 carries a needle 16 in a central bore 36 thereof. The projection 34 also carries the inner ends of a plurality of slats 38 of a Kuracina type protective sleeve 40. The slats 38 are concentrically disposed about the needle 16 and terminate at their outer ends in an end piece 42 having a preferred transparent bell end for viewing the tip 18 of the needle 16. A locking collar 43 and bias spring 44 are disposed over the slats 38 in the usual manner. A protective hard cover 46 is carried by a peripheral cylindrical shoulder area 48 provided in the projection 34 for the purpose.
In an alternate approach as depicted in Figure 7, the projection 34' has a small diameter central portion 50 containing the bore 36 with the needle 16 therein and a cylindrical collar 52 is permanently attached over the central portion with plastic glue,- heat/sonic welding, or the like. In this embodiment, the slats 38 and end piece 42 are formed as part of and carried by the collar 52. The outer periphery of the collar forms the peripheral cylindrical shoulder area 48 which supports the hard cover 46. Once the collar 52 is attached, the structure of the two embodiments is virtually identical. There may be some savings in mold costs in making the protective sleeve 40 as a separate item from the syringe 10' where various configurations are desired.
All the various improvements and modifications to the basic Kuracina type protective sleeve could, of course, be incorporated into either of the embodiments or the hard cover employed therewith. Wherefore, having thus described the present invention, what is claimed is:

Claims

1. In a medical device having a needle extending from a body portion thereof, the improvement for protecting the needle with a retractable sleeve comprising: a) a bore in the body portion carrying an inner end of the needle; b) a plurality of longitudinal slats concentrically disposed about the needle parallel thereto and carried on inner ends by the body portion; and, c) an outer end piece having a bore therethrough connecting outer ends of said plurality of longitudinal slats, said bore having the needle passing therethrough whereby said outer end piece can be slid back along the needle from an extended position covering an outer tip of the needle to bow said plurality of longitudinal slats outwardly and expose said outer tip as said outer end piece is moved to a retracted position adjacent said body portion.
2. The improvement for protecting the needle of a medical device having a needle extending from a body portion with a retractable sleeve of claim 1 wherein: the body portion, said plurality of longitudinal slats, and said outer end piece are of unitary construction.
3. The improvement for protecting the needle of a medical device having a needle extending from a body portion with a retractable sleeve of claim 1 wherein: a) the body portion has an outward-extending hub. concentrically surrounding said bore in the body portion carrying said inner end of the needle; b) said plurality of longitudinal slats have said inner ends carried by a cylindrical collar; c) said plurality of longitudinal slats and said cylindrical collar are of unitary construction; d) said cylindrical collar has a central bore therethrough having a diameter substantially identical to an outer diameter of said cylindrical hub of the body portion; and, e) said cylindrical collar is permanently attached to said hub.
4. A disposable syringe having a needle protected with a retractable sleeve comprising: a) a cylindrical body having an open end and a closed end; b) a needle having a longitudinal bore therethrough from an inner end to an outer end; c) a plunger slidably contained in said cylindrical body through said open end; d) a bore through said closed end carrying said inner end of said needle; and, e) a retractable sleeve disposed over said needle, said retractable sleeve comprising, el) a plurality of longitudinal slats concentrically disposed about said needle parallel thereto and carried on inner ends by said closed end, and e2) an outer end piece having a bore therethrough connecting outer ends of said plurality of longitudinal slats, said bore having said needle passing therethrough whereby said outer end piece can be slid back along said needle from an extended position covering an outer tip of said needle to bow said plurality of longitudinal slats outwardly and expose said outer tip as said outer end piece is moved to a retracted position adjacent said body portion.
5. The disposable syringe having a needle protected with a retractable sleeve of claim 4 wherein: said cylindrical body, said plurality of longitudinal slats, and said outer end piece are of unitary construction.
6. The disposable syringe having a needle protected with a retractable sleeve of claim 4 wherein: a) said closed end has an outward-extending hub concentrically surrounding said bore carrying said inner end of said needle; b) said plurality of longitudinal slats have said inner ends carried by a cylindrical collar; c) said plurality of longitudinal slats and said cylindrical collar are of unitary construction; d) said cylindrical collar has a central bore therethrough having a diameter substantially identical to an outer diameter of said cylindrical hub of the body portion; and, e) said cylindrical collar is permanently attached to said hub.
7. The disposable syringe having a needle protected with a retractable sleeve of claim 4 and additionally comprising: a) an annular locking collar slidably disposed over said plurality of longitudinal slats adjacent said outer end piece; and, b) a helical compression spring disposed over said plurality of longitudinal slats and extending between said closed end and said outer end piece.
8. The disposable syringe having a needle protected with a retractable sleeve of claim 7 and additionally comprising: a) said closed end having a cylindrical hub portion having an outer diameter larger than said annular locking collar and said helical compression spring extending from said closed end and concentric with said needle; and, b) a cylindrical protective cover having an open end and a closed end, said cylindrical protective cover having an inside diameter of said open end substantially identical to said outer diameter of said cylindrical hub portion whereby said cylindrical protective cover can be removably disposed over said annular locking collar, said helical compression spring, said needle, and said retractable sleeve by slidably mating said open end of said cylindrical protective cover with said cylindrical hub portion. 0
9. A disposable syringe having a needle protected with a locking retractable sleeve comprising: a) a cylindrical body having an open end and a closed end; s b) a needle having a longitudinal bore therethrough from an inner end to an outer end; c) a plunger slidably contained in said cylindrical body through said open end; d) a bore through said closed end carrying said o inner end of said needle; e) a retractable sleeve disposed over said needle, said retractable sleeve comprising, el), a plurality of longitudinal slats concentrically disposed about said needle parallel thereto 5 and carried on inner ends by said closed end, and e2) an outer end piece having a bore therethrough connecting outer ends . of said plurality of . longitudinal slats, said bore having said needle passing therethrough whereby said outer end piece can be slid 0 back along said needle from an extended position covering an outer tip of said needle to bow said plurality of longitudinal slats outwardly and expose said outer tip as said outer end piece is moved to a retracted position adjacent said body portion; 11 f) an annular locking collar slidably disposed over said plurality of longitudinal slats adjacent said outer end piece; and, g) a helical compression spring disposed over said plurality of longitudinal slats and extending between said closed end and said outer end piece.
10. The disposable syringe having a needle protected with a locking retractable sleeve of claim 9 wherein: said cylindrical body, said plurality of longitudinal slats, and said outer end piece are of unitary construction.
11. The disposable syringe having a needle protected with a locking retractable sleeve of claim 9 wherein: a) said closed end has an outward-extending hub concentrically surrounding said bore carrying said inner end of said needle; b) said plurality of longitudinal slats have said inner ends carried by a cylindrical collar; c) said plurality of longitudinal slats and said cylindrical collar are of unitary construction; d) said cylindrical collar has a central bore therethrough having a diameter substantially identical to an outer diameter of said cylindrical hub of the body portion; and, e) said cylindrical collar is permanently attached to said hub.
12. The disposable syringe having a needle protected with a locking retractable sleeve of claim 9 and additionally comprising: a) said closed end having a cylindrical hub portion having an outer diameter larger than said annular locking collar and said helical compression spring extending from said closed end and concentric with said needle; and, b) a cylindrical protective cover having an open end and a closed end, said cylindrical protective cover having an inside diameter of said open end substantially identical to said outer diameter of said cylindrical hub portion whereby said cylindrical protective cover can be removably disposed over said annular locking collar, said helical compression spring, said needle, and said retractable sleeve by slidably mating said open end of said cylindrical protective cover with said cylindrical hub portion.
PCT/US1993/002080 1992-03-10 1993-03-08 Unitary injection apparatus incorporating retractable sleeve needle protection apparatus WO1993017735A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU37963/93A AU3796393A (en) 1992-03-10 1993-03-08 Unitary injection apparatus incorporating retractable sleeve needle protection apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85046492A 1992-03-10 1992-03-10
US850,464 1992-03-10

Publications (1)

Publication Number Publication Date
WO1993017735A1 true WO1993017735A1 (en) 1993-09-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005876A1 (en) * 1998-12-05 2000-06-07 Arzneimittel GmbH Apotheker Vetter & Co. Ravensburg Needle protective device for syringes, ampullas and like injection devices
WO2010100240A1 (en) * 2009-03-05 2010-09-10 Sanofi-Aventis Deutschland Gmbh Needle assembly
US8821453B2 (en) 2011-07-25 2014-09-02 Safety Syringes, Inc. Folding panel needle guard

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695274A (en) * 1986-01-31 1987-09-22 Fox Richard L Protected hypodermic needle
GB2202747A (en) * 1987-01-17 1988-10-05 Dr William Ducat Syringes
US4778453A (en) * 1986-04-07 1988-10-18 Icu Medical, Inc. Medical device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695274A (en) * 1986-01-31 1987-09-22 Fox Richard L Protected hypodermic needle
US4778453A (en) * 1986-04-07 1988-10-18 Icu Medical, Inc. Medical device
GB2202747A (en) * 1987-01-17 1988-10-05 Dr William Ducat Syringes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005876A1 (en) * 1998-12-05 2000-06-07 Arzneimittel GmbH Apotheker Vetter & Co. Ravensburg Needle protective device for syringes, ampullas and like injection devices
WO2010100240A1 (en) * 2009-03-05 2010-09-10 Sanofi-Aventis Deutschland Gmbh Needle assembly
JP2012519508A (en) * 2009-03-05 2012-08-30 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Needle assembly
US9216255B2 (en) 2009-03-05 2015-12-22 Sanofi-Aventis Deutschland Gmbh Needle assembly
US8821453B2 (en) 2011-07-25 2014-09-02 Safety Syringes, Inc. Folding panel needle guard
US9925341B2 (en) 2011-07-25 2018-03-27 Safety Syringes, Inc. Folding panel needle guard

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