WO2002066097A3 - Method and apparatus for inhibiting fluid loss from a syringe - Google Patents

Method and apparatus for inhibiting fluid loss from a syringe Download PDF

Info

Publication number
WO2002066097A3
WO2002066097A3 PCT/US2002/000469 US0200469W WO02066097A3 WO 2002066097 A3 WO2002066097 A3 WO 2002066097A3 US 0200469 W US0200469 W US 0200469W WO 02066097 A3 WO02066097 A3 WO 02066097A3
Authority
WO
WIPO (PCT)
Prior art keywords
needle
hollow body
fluid
syringe
retention system
Prior art date
Application number
PCT/US2002/000469
Other languages
French (fr)
Other versions
WO2002066097A2 (en
Inventor
Jeffrey Field
John Dunec
Original Assignee
Futura Medical Corp
Jeffrey Field
John Dunec
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 Futura Medical Corp, Jeffrey Field, John Dunec filed Critical Futura Medical Corp
Priority to US10/450,573 priority Critical patent/US20040143224A1/en
Priority to AU2002246963A priority patent/AU2002246963A1/en
Publication of WO2002066097A2 publication Critical patent/WO2002066097A2/en
Publication of WO2002066097A3 publication Critical patent/WO2002066097A3/en

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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • 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
    • 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
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3107—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle for needles
    • 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
    • A61M2005/3112—Incorporating self-aspirating means, e.g. to provide flashback
    • 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
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod

Abstract

The present invention is directed to syringes (8) that have needles (72) that retract after an injection to provide safe syringes which reduce the possibility of a sharps injury through retraction of the needle (72) after use into the barrel (40), a needle assembly (70) positioned in the hollow body (42), a fluid retention system positioned in the hollow body (42), and a plunger assembly (100) that moves in the hollow body (42). A fluid retention system retains in the syringe (8) any fluid remaining in the needle (72) after the plunger assembly (100) approaches tha distal end of the hollow body (42). The fluid retention system includes a variable volume vacuum cavity in fluid communication with the needle assembly (70) and providing a pressure drop in the needle (72), tending to draw into the hollow body (42) any fluid remaining in the needle (72).
PCT/US2002/000469 2001-01-05 2002-01-07 Method and apparatus for inhibiting fluid loss from a syringe WO2002066097A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/450,573 US20040143224A1 (en) 2002-01-07 2002-01-07 Method and apparatus for inhibiting fluid loss from a syringe
AU2002246963A AU2002246963A1 (en) 2001-01-05 2002-01-07 Method and apparatus for inhibiting fluid loss from a syringe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US26009601P 2001-01-05 2001-01-05
US60/260,096 2001-01-05
US26455401P 2001-01-26 2001-01-26
US60/264,554 2001-01-26

Publications (2)

Publication Number Publication Date
WO2002066097A2 WO2002066097A2 (en) 2002-08-29
WO2002066097A3 true WO2002066097A3 (en) 2003-03-27

Family

ID=26947720

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/000469 WO2002066097A2 (en) 2001-01-05 2002-01-07 Method and apparatus for inhibiting fluid loss from a syringe

Country Status (2)

Country Link
AU (1) AU2002246963A1 (en)
WO (1) WO2002066097A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7044931B2 (en) 2000-12-13 2006-05-16 Hypoguard Usa Inc. Syringe with retractable needle assembly
US7393343B2 (en) 2002-07-02 2008-07-01 Hypoguard Usa Inc. Retractable hypodermic syringe
US7494479B2 (en) 2002-09-16 2009-02-24 Medsolve Technologies, Inc. Syringe with retractable needle assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211628A (en) * 1991-09-30 1993-05-18 Marshall John M Syringe with automatic retracting needle
US5484421A (en) * 1993-08-30 1996-01-16 Smocer; Anthony V. Safety syringe
US5782804A (en) * 1994-08-18 1998-07-21 Nmt Group Plc Needle retraction mechanisms
US6409701B1 (en) * 2000-09-29 2002-06-25 Becton, Dickinson And Company Hypodermic syringe with selectively retractable needle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211628A (en) * 1991-09-30 1993-05-18 Marshall John M Syringe with automatic retracting needle
US5484421A (en) * 1993-08-30 1996-01-16 Smocer; Anthony V. Safety syringe
US5782804A (en) * 1994-08-18 1998-07-21 Nmt Group Plc Needle retraction mechanisms
US6409701B1 (en) * 2000-09-29 2002-06-25 Becton, Dickinson And Company Hypodermic syringe with selectively retractable needle

Also Published As

Publication number Publication date
AU2002246963A1 (en) 2002-09-04
WO2002066097A2 (en) 2002-08-29

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