CA2440898A1 - Improved non-reusable syringe - Google Patents

Improved non-reusable syringe Download PDF

Info

Publication number
CA2440898A1
CA2440898A1 CA002440898A CA2440898A CA2440898A1 CA 2440898 A1 CA2440898 A1 CA 2440898A1 CA 002440898 A CA002440898 A CA 002440898A CA 2440898 A CA2440898 A CA 2440898A CA 2440898 A1 CA2440898 A1 CA 2440898A1
Authority
CA
Canada
Prior art keywords
outer barrel
depression
plunger
syringe
barrel
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
CA002440898A
Other languages
French (fr)
Other versions
CA2440898C (en
Inventor
Bruce Wallace Ingram
Jodie Leigh Gartner
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.)
Glenord Pty Ltd
Original Assignee
Glenord Pty. Ltd.
Bruce Wallace Ingram
Jodie Leigh Gartner
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 Glenord Pty. Ltd., Bruce Wallace Ingram, Jodie Leigh Gartner filed Critical Glenord Pty. Ltd.
Publication of CA2440898A1 publication Critical patent/CA2440898A1/en
Application granted granted Critical
Publication of CA2440898C publication Critical patent/CA2440898C/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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31501—Means for blocking or restricting the movement of the rod or 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
    • 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
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M2005/31508—Means for blocking or restricting the movement of the rod or piston provided 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
    • A61M5/178—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
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • A61M2005/3261—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between sleeve and syringe barrel, e.g. spreading of sleeve retaining hooks having slanted surfaces by engagement with conically shaped collet of the piston rod during the last portion of the injection stroke of the plunger

Abstract

A single use syringe (10) has an outer barrel (11) and an inner barrel (12) slidable within the outer barrel. The two barrels are initially latched together to prevent relative movement therebetween whereby the syringe is in a useable condition. A needle (16) is in fluid communication with the inner barrel and projects initially from a first end of the outer barrel. A plunger (21) in the inner barrel is connected to a plunger actuating rod (22) which extends out the other end of the outer barrel. On first depression of the plunger actuating rod a limit catch (23) prevents full depression thereof but allows sufficient depression to draw fluid into the inner barrel. On the second depression the fluid is ejected and the plunger actuating rod and plunger are allowed full travel whereby latching between the two barrels is disengaged. It is not possible to re-latch the barrels together in the useable condition and therefore further use of the syringe is not possible. The needle retracts into the outer barrel after said first use and is locked therein.
CA002440898A 2001-03-14 2002-03-14 Improved non-reusable syringe Expired - Fee Related CA2440898C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPR3730A AUPR373001A0 (en) 2001-03-14 2001-03-14 Improved non-reusable syringe
AUPR3730 2001-03-14
PCT/AU2002/000297 WO2002072182A1 (en) 2001-03-14 2002-03-14 Improved non-reusable syringe

Publications (2)

Publication Number Publication Date
CA2440898A1 true CA2440898A1 (en) 2002-09-19
CA2440898C CA2440898C (en) 2006-02-07

Family

ID=3827738

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002440898A Expired - Fee Related CA2440898C (en) 2001-03-14 2002-03-14 Improved non-reusable syringe

Country Status (12)

Country Link
US (1) US6905478B2 (en)
EP (1) EP1377331B1 (en)
JP (1) JP2004528075A (en)
CN (1) CN1314465C (en)
AT (1) ATE434456T1 (en)
AU (2) AUPR373001A0 (en)
CA (1) CA2440898C (en)
DE (1) DE60232717D1 (en)
RU (1) RU2289431C2 (en)
UA (1) UA74636C2 (en)
WO (1) WO2002072182A1 (en)
ZA (1) ZA200307954B (en)

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Also Published As

Publication number Publication date
EP1377331A1 (en) 2004-01-07
CA2440898C (en) 2006-02-07
US20040147875A1 (en) 2004-07-29
ATE434456T1 (en) 2009-07-15
RU2003130471A (en) 2005-03-20
US6905478B2 (en) 2005-06-14
DE60232717D1 (en) 2009-08-06
CN1505535A (en) 2004-06-16
CN1314465C (en) 2007-05-09
EP1377331A4 (en) 2007-05-16
AUPR373001A0 (en) 2001-04-12
RU2289431C2 (en) 2006-12-20
UA74636C2 (en) 2006-01-16
ZA200307954B (en) 2004-10-13
AU2002240702B2 (en) 2004-12-16
JP2004528075A (en) 2004-09-16
EP1377331B1 (en) 2009-06-24
WO2002072182A1 (en) 2002-09-19

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