WO1993018810A1 - Hand syringe with safety storage for used needle - Google Patents
Hand syringe with safety storage for used needle Download PDFInfo
- Publication number
- WO1993018810A1 WO1993018810A1 PCT/US1992/002272 US9202272W WO9318810A1 WO 1993018810 A1 WO1993018810 A1 WO 1993018810A1 US 9202272 W US9202272 W US 9202272W WO 9318810 A1 WO9318810 A1 WO 9318810A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- needle head
- cylindrical body
- plunger
- needle
- syringe
- Prior art date
Links
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
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
Definitions
- the present invention relates in general to hand syringes, and more particularly to a hand syringe which allows a used needle to be retracted completely into the body of the syringe for storage.
- the prior art has taught means for enclosing a spent needle with a separate cover, breaking the used needle from the body of the syringe, spring actuation to push the needle back inside of the syringe body and several other approaches to eliminating secondary use of a hand syringe. Placing a cover over a used needle is not consistently done by the user, and breaking the needle is not a safe solution since users risk puncturing themselves while breaking the needle.
- a primary object of the invention is to provide a convenient means to eliminate the secondary use of hand syringes thereby reducing the risk of transferring infection to otherwise healthy persons.
- a further object of the invention is to provide a convenient storage means for a used hand syringe needle that will prevent service personnel from accidentally becoming infected from a previously used hand syringe.
- a still further object of the invention is to provide a syringe structure that is simple and will be economical to produce using present injection molding art.
- FIGURE 1 is a section view illustrating the several components of the instant invention with the injection needle positioned for use;
- FIGURE 2 is a section view picturing the injection needle in a stored position
- FIGURE 3 is a section view taken along the lines 3-3 in FIGURE 1;
- FIGURE 4 is a section view taken along the lines 4-4 in FIGURE 1;
- FIGURE 5 is a pictorial view of the needle head.
- the instant invention 1 is shown to comprise a hollow cylindrical body 2 open on the distal end that houses a sliding plunger 3, a needle head 5 seated contiguous to lip 14, that is secured within, and at the distal end of hollow cylindrical body 2 by tab 9 seated in recess 10 that is formed in the inside diameter of body 2.
- Plunger 3 is made with a thumb eye 11 on one end, and external to the syringe body, connected to piston 12 by means of shank 13. At least two locking tangs 4 extend downward from the bottom surface of piston 12.
- the needle head 5 is formed with a standard syringe needle 6 of the appropriate size, at least two tang notches 7, and further, at least two circular slots 8 in the outside diameter of needle head 5.
- the instant invention is used just as any other hand syringe.
- locking tangs 4 penetrate tang notches 7 allowing the lower face of piston 12 to come into intimate contact with the upper surface of needle head 5 at which time the plunger 3 is rotated several degrees in either clockwise or counter clockwise direction thereby causing the locking tangs 4 to be captured within slot 8.
- the plunger 3 With the locking tangs 4 secured within slot 8, the plunger 3 is retracted causing the tabs 9 to tear away from the body of needle head 5 allowing needle head 5 to be retracted into the body 2 until the syringe needle 6 is encased by body 2, best seen in Figure 2, and is now stored in a safe housing for disposal.
- Figure 5 illustrates the relationship of tabs 9, tang notch 7, and radial slots 8 with respect to the needle head 5.
Abstract
An improved hand syringe (12) has been provided which allows a used needle (6) to be retracted completely into the body of the syringe, and stored there such that the spent needle cannot be used again. The improvement thereby provides safety from accidental infection to persons required to use hand syringes as well as persons required to dispose of these syringes.
Description
HAND SYRINGE WITH SAFETY STORAGE FOR USED NEEDLE
TECHNICAL FIELD OF THE INVENTION
The present invention relates in general to hand syringes, and more particularly to a hand syringe which allows a used needle to be retracted completely into the body of the syringe for storage.
BACKGROUND OF THE INVENTION
The prior art has taught means for enclosing a spent needle with a separate cover, breaking the used needle from the body of the syringe, spring actuation to push the needle back inside of the syringe body and several other approaches to eliminating secondary use of a hand syringe. Placing a cover over a used needle is not consistently done by the user, and breaking the needle is not a safe solution since users risk puncturing themselves while breaking the needle.
SUMMARY OF THE INVENTION
A primary object of the invention is to provide a convenient means to eliminate the secondary use of hand syringes thereby reducing the risk of transferring infection to otherwise healthy persons.
A further object of the invention is to provide a convenient storage means for a used hand syringe needle that will prevent service personnel from accidentally becoming infected from a previously used hand syringe. A still further object of the invention is to provide a syringe structure that is simple and will be economical to produce using present injection molding art.
BRIEF DESCRIPTION OF THE DRAWINGS
Further features and advantages will become more apparent from the following and more particular description of the preferred embodiment of the invention, as illustrated in the accompanying drawings in which like reference characters generally refer to the same elements throughout the views, and in which:
FIGURE 1 is a section view illustrating the several components of the instant invention with the injection needle positioned for use;
FIGURE 2 is a section view picturing the injection needle in a stored position;
FIGURE 3 is a section view taken along the lines 3-3 in FIGURE 1; FIGURE 4 is a section view taken along the lines 4-4 in FIGURE 1; and
FIGURE 5 is a pictorial view of the needle head.
DETAILED DESCRIPTION OF THE INVENTION
Referring now to Figure 1 in the drawings of reference, the instant invention 1 is shown to comprise a hollow cylindrical body 2 open on the distal end that houses a sliding plunger 3, a needle head 5 seated contiguous to lip 14, that is secured within, and at the distal end of hollow cylindrical body 2 by tab 9 seated in recess 10 that is formed in the inside diameter of body 2. Plunger 3 is made with a thumb eye 11 on one end, and external to the syringe body, connected to piston 12 by means of shank 13. At least two locking tangs 4 extend downward from the bottom surface of piston 12.
The needle head 5 is formed with a standard syringe needle 6 of the appropriate size, at least two tang notches 7, and further, at least two circular slots 8 in the outside diameter of needle head 5.
The instant invention is used just as any other hand syringe. However, when the syringe needle 6 is stroked to completion, locking tangs 4 penetrate tang notches 7 allowing the lower face of piston 12 to come into intimate contact with the upper surface of needle head 5 at which time the plunger 3 is rotated several degrees in either clockwise or counter clockwise direction thereby causing the locking tangs 4 to be captured within slot 8. With the locking tangs 4 secured within slot 8, the plunger 3 is retracted causing the tabs 9 to tear away from the body of needle head 5 allowing needle head 5 to be retracted into the body 2 until the syringe needle 6 is encased by body 2, best seen in Figure 2, and is now stored in a safe housing for disposal. The plunger shank 13 is now bent to one side of the body 2 , thereby completely disabling the syringe for any further use. Figure 3 pictures a desired relationship of tang notch 7 with respect to the radial slots 8 in needle head
Figure 4 illustrates a suggested position for recess 10 with respect to tab 9.
Figure 5 illustrates the relationship of tabs 9, tang notch 7, and radial slots 8 with respect to the needle head 5.
While the foregoing descriptions and drawings define the preferred embodiment of the instant invention, they do not preclude the many other means for accomplishing the same objectives that are within the scope and spirit of the instant invention.
Claims
1. An improved method of storing and disposing of used syringe needles after injection of a fluid into a diseased patient, thereby providing greater safety from accidental disease transmission to an individual responsible for making said injection, using a syringe having a hollow cylindrical body open on the distal end, a needle head including a locking tab slot for fixing the needle head at the distal end of said body, a syringe needle secured to said needle head, and a sliding plunger including tabs and movable within said hollow cylindrical body, comprising the steps of: filling said hollow cylindrical body with fluid; injecting the fluid into the patient by sliding said plunger toward the needle head; continuing moving said plunger toward said needle head until said locking tabs are interlocked with said locking tab slot; withdrawing said plunger away from said needle head and causing said tabs on said needle head to be sheared; and continuing withdrawal of said sliding plunger until said needle head and syringe needle are completely encased within said hollow cylindrical body.
2. The method of Claim 1 and further comprising: bending said shank of said sliding plunger thereby securing said needle head and said syringe needle in a safe position within said hollow cylindrical body.
3. A syringe comprising: a hollow cylindrical body open at a distal end; a sliding plunger within said cylindrical body, said plunger having a shank which extends outwardly from said cylindrical body when said plunger is positioned away from said distal end of said cylindrical body; a needle head fixedly seated within said cylindrical body contiguous to said distal end of said cylindrical body; said needle head secured to a syringe needle; said plunger having locking tangs; said needle head having locking tang notches positioned in alignment with said locking tangs of said plunger in order to enable locking said needle head and said plunger together; and said needle head further having a shearable shoulder locking said needle head to said cylindrical body, wherein said shoulder is sheared upon rearward movement of said plunger in order to allow said needle to be fully withdrawn into said cylindrical body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU23427/92A AU2342792A (en) | 1992-03-20 | 1992-03-20 | Hand syringe with safety storage for used needle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/579,021 US5098390A (en) | 1990-09-07 | 1990-09-07 | Hand syringe with safety storage for used needle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993018810A1 true WO1993018810A1 (en) | 1993-09-30 |
Family
ID=24315261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1992/002272 WO1993018810A1 (en) | 1990-09-07 | 1992-03-20 | Hand syringe with safety storage for used needle |
Country Status (2)
Country | Link |
---|---|
US (2) | US5098390A (en) |
WO (1) | WO1993018810A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9408983B2 (en) | 2004-09-03 | 2016-08-09 | L.O.M. Laboratories Inc. | Single-use pneumatic safety syringe providing gas-driven needle retraction |
US10709847B2 (en) | 2015-01-20 | 2020-07-14 | L.O.M. Laboratories Inc. | Retractable needle syringe with unitary propellant release module |
US10765815B2 (en) | 2014-10-31 | 2020-09-08 | L.O.M. Laboratories Inc. | Retractable needle syringe |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991007198A1 (en) * | 1989-11-08 | 1991-05-30 | Napoleon Curie | Syringe with retractable needle mount |
US5098390A (en) * | 1990-09-07 | 1992-03-24 | Retractable I, Inc. | Hand syringe with safety storage for used needle |
US5393301A (en) * | 1992-10-05 | 1995-02-28 | Retrax, Inc. | Retractable syringe |
WO1994014489A1 (en) * | 1991-11-06 | 1994-07-07 | Design And Engineering Associates | Disposable safety syringe |
US5304150A (en) * | 1992-06-24 | 1994-04-19 | Duplan Industries | Retractable needle for use with syringe |
UA26190C2 (en) * | 1992-07-28 | 1999-07-19 | Сейфтек Ай Лімітед | Syringe |
US5336198A (en) * | 1993-02-01 | 1994-08-09 | Innova Development Corp. | Hypodermic syringe with needle retraction feature |
US5484421A (en) * | 1993-08-30 | 1996-01-16 | Smocer; Anthony V. | Safety syringe |
US5415646A (en) * | 1994-05-11 | 1995-05-16 | Roth; Noah M. | One use safety locking syringe |
NL9401174A (en) * | 1994-07-15 | 1996-02-01 | A P I S Medical Bv | Injection assembly with suction needle and retractable injection needle. |
AUPN254195A0 (en) * | 1995-04-20 | 1995-05-18 | Curie, Napoleon | Syringe with retractable needle mount |
US5762628A (en) * | 1996-04-10 | 1998-06-09 | Harper; Ronald G. | Safety syringe with breakaway seal |
WO1998053867A1 (en) * | 1997-05-26 | 1998-12-03 | Brice Somers | Safety syringe |
US6036671A (en) * | 1997-07-17 | 2000-03-14 | Frey; William J. | Breakaway syringe and disposal apparatus |
US6248094B1 (en) * | 1998-09-01 | 2001-06-19 | Frank E. Epperson | Hypodermic syringe with retractable needle |
US6530903B2 (en) | 2000-02-24 | 2003-03-11 | Xiping Wang | Safety syringe |
GB2470093A (en) | 2009-05-07 | 2010-11-10 | Stephen Terence Dunne | Pre-Filled Syringe Assembly |
USD746442S1 (en) * | 2012-05-03 | 2015-12-29 | Sofic | Safety syringe |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4507117A (en) * | 1983-07-11 | 1985-03-26 | Vining Herbert C | Syringe apparatus with retractable needle |
US4675005A (en) * | 1986-05-08 | 1987-06-23 | Deluccia James | Retractable disposable syringe |
US4874382A (en) * | 1987-10-15 | 1989-10-17 | Servetus Partnership | Safety syringe |
EP0347742A1 (en) * | 1988-06-23 | 1989-12-27 | Aldo Venturini | Disposable safety syringe |
US4919652A (en) * | 1988-10-28 | 1990-04-24 | Nujenko Pty. Ltd. | Syringe |
US4921486A (en) * | 1989-06-23 | 1990-05-01 | Dechellis Francis M | Disposable syringe with retracting needle |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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GB8630016D0 (en) * | 1986-12-16 | 1987-01-28 | Id Tech Ltd | Dental injection device |
US5047016A (en) * | 1987-12-21 | 1991-09-10 | Stuart M. Dolgin | Fluid passing apparatus with means for covering the same |
US4931040A (en) * | 1988-04-13 | 1990-06-05 | Habley Medical Technology | Safety syringe having a combination needle cannula and articulating hub for retracting said cannula into a medication carpule |
ES2005505A6 (en) * | 1988-08-05 | 1989-03-01 | Pastor Vicente M Segui | Disposable syringe. |
IT1225440B (en) * | 1988-12-07 | 1990-11-13 | Nacci Gaetano | PISTON FOR SYRINGES THAT AUTOMATICALLY MAKES THE HYPODERMIC NEEDLE, MODIFIED PURPOSE, AFTER USE |
US5000738A (en) * | 1989-05-11 | 1991-03-19 | Lavallo Frank | Protective syringe with frangible barrel |
US5104378A (en) * | 1989-10-13 | 1992-04-14 | Habley Medical Technology Corporation | Syringe having means for retracting, canting and destroying a needle cannula |
US5000736A (en) * | 1990-03-22 | 1991-03-19 | Harry Kaufhold, Jr. | Disposable syringe with automatic needle retraction |
US5098390A (en) * | 1990-09-07 | 1992-03-24 | Retractable I, Inc. | Hand syringe with safety storage for used needle |
-
1990
- 1990-09-07 US US07/579,021 patent/US5098390A/en not_active Expired - Fee Related
-
1992
- 1992-03-19 US US07/853,679 patent/US5279580A/en not_active Expired - Fee Related
- 1992-03-20 WO PCT/US1992/002272 patent/WO1993018810A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4507117A (en) * | 1983-07-11 | 1985-03-26 | Vining Herbert C | Syringe apparatus with retractable needle |
US4507117B1 (en) * | 1983-07-11 | 1988-06-21 | ||
US4675005A (en) * | 1986-05-08 | 1987-06-23 | Deluccia James | Retractable disposable syringe |
US4874382A (en) * | 1987-10-15 | 1989-10-17 | Servetus Partnership | Safety syringe |
EP0347742A1 (en) * | 1988-06-23 | 1989-12-27 | Aldo Venturini | Disposable safety syringe |
US4919652A (en) * | 1988-10-28 | 1990-04-24 | Nujenko Pty. Ltd. | Syringe |
US4921486A (en) * | 1989-06-23 | 1990-05-01 | Dechellis Francis M | Disposable syringe with retracting needle |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9408983B2 (en) | 2004-09-03 | 2016-08-09 | L.O.M. Laboratories Inc. | Single-use pneumatic safety syringe providing gas-driven needle retraction |
US9649450B2 (en) | 2004-09-03 | 2017-05-16 | L.O.M. Laboratories Inc. | Single use pneumatic safety syringe providing gas-driven needle retraction |
US10335555B2 (en) | 2004-09-03 | 2019-07-02 | L.O.M. Laboratories Inc. | Single-use pneumatic safety syringe providing gas-driven needle retraction |
US10765815B2 (en) | 2014-10-31 | 2020-09-08 | L.O.M. Laboratories Inc. | Retractable needle syringe |
US10709847B2 (en) | 2015-01-20 | 2020-07-14 | L.O.M. Laboratories Inc. | Retractable needle syringe with unitary propellant release module |
Also Published As
Publication number | Publication date |
---|---|
US5098390A (en) | 1992-03-24 |
US5279580A (en) | 1994-01-18 |
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