WO2011023147A3 - Locking and intercepting mechanism of the needle for a safety syringe - Google Patents

Locking and intercepting mechanism of the needle for a safety syringe Download PDF

Info

Publication number
WO2011023147A3
WO2011023147A3 PCT/CZ2010/000096 CZ2010000096W WO2011023147A3 WO 2011023147 A3 WO2011023147 A3 WO 2011023147A3 CZ 2010000096 W CZ2010000096 W CZ 2010000096W WO 2011023147 A3 WO2011023147 A3 WO 2011023147A3
Authority
WO
WIPO (PCT)
Prior art keywords
base
conical extension
plunger
needle
locking
Prior art date
Application number
PCT/CZ2010/000096
Other languages
French (fr)
Other versions
WO2011023147A4 (en
WO2011023147A2 (en
Inventor
Jan Zeman
Original Assignee
Kavalirek, Jan
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 Kavalirek, Jan filed Critical Kavalirek, Jan
Publication of WO2011023147A2 publication Critical patent/WO2011023147A2/en
Publication of WO2011023147A3 publication Critical patent/WO2011023147A3/en
Publication of WO2011023147A4 publication Critical patent/WO2011023147A4/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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • 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
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
    • A61M2005/3224—Means to disalign the needle tip and syringe nozzle
    • 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
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/323—Connection between plunger distal end and needle hub proximal end, e.g. stud protruding from the plunger

Abstract

The invention deals with a locking and intercepting mechanism of the needle for a safety syringe. The edge of the conical tapering for the introduction of the conical extension of the plunger there is an intercepting groove or narrowed bottom edge adapted for interaction with the perimeter edge of the base of this conical extension of the plunger while its principle is that the perimeter edge (2141 ) of the base (210) of the conical extension (21) of the plunger (2) is adapted for increased flexibility in the radial direction by means of creation of an annular groove (215) on the surface of the base (210) of the conical extension (21) of the plunger (2) in the vicinity of the perimeter edge (2141 ) of the base (210) of this conical extension (21), and/or by creation of an overlap (214) of the casing (213) over the base (210) of this conical extension (21 ) and/or by creation of radial grooving (2142) in the form of relief slots along the perimeter of the perimeter edge (2141) of the base (210) of this conical extension (21) of the plunger (2).
PCT/CZ2010/000096 2009-08-28 2010-08-20 Locking and intercepting mechanism of the needle for a safety syringe WO2011023147A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV2009-578 2009-08-28
CZ20090578A CZ2009578A3 (en) 2009-08-28 2009-08-28 Locking and gripping mechanism of needle for safety syringe

Publications (3)

Publication Number Publication Date
WO2011023147A2 WO2011023147A2 (en) 2011-03-03
WO2011023147A3 true WO2011023147A3 (en) 2011-05-19
WO2011023147A4 WO2011023147A4 (en) 2011-07-14

Family

ID=43628459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2010/000096 WO2011023147A2 (en) 2009-08-28 2010-08-20 Locking and intercepting mechanism of the needle for a safety syringe

Country Status (2)

Country Link
CZ (1) CZ2009578A3 (en)
WO (1) WO2011023147A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ303332B6 (en) 2011-06-03 2012-08-01 Kavalírek@Jan Safety syringe with needle gripping mechanism

Citations (7)

* 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
US5405327A (en) * 1994-07-29 1995-04-11 Chen; Long-Hsiung Simplified safety syringe with retractable self-biased needle and minimized plunger
GB2341804A (en) * 1998-09-25 2000-03-29 David William Parker hypodermic syringe with retracting needle
WO2007056792A1 (en) * 2005-11-15 2007-05-24 Global Medisafe Holdings Limited Safety syringe with plunger locking means
CZ301122B6 (en) * 2007-02-26 2009-11-11 Zeman@Jan Syringe with protected needle
WO2010006499A1 (en) * 2008-07-14 2010-01-21 Luo Xingyu Sealed self-destructive one-off injector
US20100185147A1 (en) * 2009-01-22 2010-07-22 Cho-Ying Chen Disposable safety syringe structure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888002A (en) * 1988-08-30 1989-12-19 Braginetz Paul A Disposable shield medical syringe
US4995870A (en) * 1990-05-09 1991-02-26 Baskas Morris J Disposable syringe with retractable needle
US5417661A (en) * 1994-05-04 1995-05-23 Stringer; Jeffrey L. Safety syringe
CZ302196A3 (en) * 1996-10-16 1997-01-15 Vladimir Benda Syringe with retractable needle
CZ316796A3 (en) * 1996-10-29 1998-05-13 Franz Burger Syringe with retractable needle
US6432088B1 (en) * 2000-06-06 2002-08-13 Wu-Shun Huang Safety syringe with a needle sleeve lock
US6461328B2 (en) * 2000-12-21 2002-10-08 Uniqsafe Medical Technology Group Ltd. Safety syringe
CZ17541U1 (en) 2007-02-26 2007-05-28 Zeman@Jan Syringe with protected needle

Patent Citations (7)

* 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
US5405327A (en) * 1994-07-29 1995-04-11 Chen; Long-Hsiung Simplified safety syringe with retractable self-biased needle and minimized plunger
GB2341804A (en) * 1998-09-25 2000-03-29 David William Parker hypodermic syringe with retracting needle
WO2007056792A1 (en) * 2005-11-15 2007-05-24 Global Medisafe Holdings Limited Safety syringe with plunger locking means
CZ301122B6 (en) * 2007-02-26 2009-11-11 Zeman@Jan Syringe with protected needle
WO2010006499A1 (en) * 2008-07-14 2010-01-21 Luo Xingyu Sealed self-destructive one-off injector
US20100185147A1 (en) * 2009-01-22 2010-07-22 Cho-Ying Chen Disposable safety syringe structure

Also Published As

Publication number Publication date
WO2011023147A4 (en) 2011-07-14
WO2011023147A2 (en) 2011-03-03
CZ302349B6 (en) 2011-03-23
CZ2009578A3 (en) 2011-03-23

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