CA2455160A1 - One-use retracting syringe with positive needle retention - Google Patents

One-use retracting syringe with positive needle retention Download PDF

Info

Publication number
CA2455160A1
CA2455160A1 CA002455160A CA2455160A CA2455160A1 CA 2455160 A1 CA2455160 A1 CA 2455160A1 CA 002455160 A CA002455160 A CA 002455160A CA 2455160 A CA2455160 A CA 2455160A CA 2455160 A1 CA2455160 A1 CA 2455160A1
Authority
CA
Canada
Prior art keywords
handle
syringe
barrel
needle retention
needle
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002455160A
Other languages
French (fr)
Other versions
CA2455160C (en
Inventor
Thomas J. Shaw
Judy Zhu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Retractable Technologies Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2455160A1 publication Critical patent/CA2455160A1/en
Application granted granted Critical
Publication of CA2455160C publication Critical patent/CA2455160C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
    • A61M2005/5026—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston allowing single filling of syringe
    • 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
    • A61M2005/5033—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston by use of an intermediate blocking member positioned between the syringe barrel and the piston rod to prevent retraction of the latter, e.g. toothed clip placed on the piston rod
    • 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing

Abstract

A retracting syringe of one use has a plunger comprising a handle portion and a needle retention portion forward of the handle portion which serves as the plunger and preferably also serves to trigger the retraction mechanism when the handle is moved forward beyond the forward end-of-injection position. The positive locking stricture in the syringe barrel permits one withdrawal of the handle in the rearward direction to fill the variable fluid chamber and one movement in the forward direction to empty the variable fluid chamber but thereafter limits the rearward movement of the needle retention chamber and/or the handle to ensure that the syringe cannot be reused even if the user fails to trigger the retraction device to retract the needle. In one embodiment, the positive locking structure is a stop in the syringe barrel which allows a diametrically enlarged portion of the needle retention chamber to move past the lock when going forward and having a two part separable handle. The handle portion merely separates after one use and is removed from the syringe without withdrawing the needle retention chamber or needle which are protected by the barrel. In a second embodiment, the handle behind the needle retention chamber has a plurality of stepped serrations and a clip which is movable with respect to both the handle and the barrel. After one use of the syringe, points on the clip dig into the inner surface of the barrel to prevent rearward movement. In a third embodiment the positive locking structure is a clip fixed in an enlarged back opening of the barrel with springing points which are protected from a plurality of stepped serrations on the handle by sliding collar which can move only one way relative the handle like those of the second embodiment. After one use the sliding collar slides forward with the handle allowing the handle to be fully depressed to make the injection. Any attempt to withdraw the handle after one injection is prevented by the points digging into the serrations on the handle. Since the handle cannot be withdrawn a second time, the syringe cannot be refilled. The one use feature disclosed herein can be applied to a nonretracting syringe to prevent reuse.
CA002455160A 2001-10-15 2002-12-02 One-use retracting syringe with positive needle retention Expired - Fee Related CA2455160C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/978,906 US6494863B1 (en) 2001-10-15 2001-10-15 One-use retracting syringe with positive needle retention
OA1200400204A OA12765A (en) 2001-10-15 2002-12-02 One-use retracting syringe with positive needle retention.
PCT/US2002/033003 WO2004060451A1 (en) 2001-10-15 2002-12-02 One-use retracting syringe with positive needle retention

Publications (2)

Publication Number Publication Date
CA2455160A1 true CA2455160A1 (en) 2004-06-02
CA2455160C CA2455160C (en) 2007-11-13

Family

ID=38137345

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002455160A Expired - Fee Related CA2455160C (en) 2001-10-15 2002-12-02 One-use retracting syringe with positive needle retention

Country Status (17)

Country Link
US (1) US6494863B1 (en)
EP (1) EP1567212B1 (en)
JP (1) JP2005524513A (en)
CN (1) CN100360196C (en)
AP (1) AP1728A (en)
AT (1) ATE480277T1 (en)
AU (2) AU2002367591B8 (en)
BR (1) BR0212684B1 (en)
CA (1) CA2455160C (en)
DE (1) DE60237647D1 (en)
DK (1) DK1567212T3 (en)
ES (1) ES2348255T3 (en)
HK (1) HK1077237A1 (en)
OA (1) OA12765A (en)
PT (1) PT1567212E (en)
UA (1) UA77204C2 (en)
WO (1) WO2004060451A1 (en)

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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

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US9649450B2 (en) 2004-09-03 2017-05-16 L.O.M. Laboratories Inc. Single use pneumatic safety syringe providing gas-driven needle retraction
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AU2002367591B2 (en) 2009-02-05
DE60237647D1 (en) 2010-10-21
AP2004003099A0 (en) 2004-09-30
CN100360196C (en) 2008-01-09
CN1617751A (en) 2005-05-18
EP1567212A1 (en) 2005-08-31
AU2002367591B8 (en) 2009-03-05
AU2009201764A1 (en) 2009-05-28
AU2009201764B2 (en) 2011-04-28
JP2005524513A (en) 2005-08-18
EP1567212A4 (en) 2007-07-18
ATE480277T1 (en) 2010-09-15
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US6494863B1 (en) 2002-12-17
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AP1728A (en) 2007-03-21
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UA77204C2 (en) 2006-11-15
AU2002367591A1 (en) 2004-07-29
DK1567212T3 (en) 2010-12-13
BR0212684A (en) 2004-11-03

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