WO2012012784A8 - Multi-chambered retractable safety syringe - Google Patents

Multi-chambered retractable safety syringe Download PDF

Info

Publication number
WO2012012784A8
WO2012012784A8 PCT/US2011/045117 US2011045117W WO2012012784A8 WO 2012012784 A8 WO2012012784 A8 WO 2012012784A8 US 2011045117 W US2011045117 W US 2011045117W WO 2012012784 A8 WO2012012784 A8 WO 2012012784A8
Authority
WO
WIPO (PCT)
Prior art keywords
needle
plunger assembly
intermediate chamber
piston
engaged position
Prior art date
Application number
PCT/US2011/045117
Other languages
French (fr)
Other versions
WO2012012784A1 (en
Inventor
Richard B. Oliver
Daniel Thayer
Jeffrey Smith
Rex O. Bare
Original Assignee
Safeshot Technologies, Llc
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
Priority claimed from US12/842,884 external-priority patent/US8517986B2/en
Priority claimed from US12/842,885 external-priority patent/US8277422B2/en
Application filed by Safeshot Technologies, Llc filed Critical Safeshot Technologies, Llc
Priority to CN2011800361324A priority Critical patent/CN103068422A/en
Priority to CA2806331A priority patent/CA2806331A1/en
Priority to AU2011280918A priority patent/AU2011280918B2/en
Priority to EP11810504.8A priority patent/EP2595676A4/en
Publication of WO2012012784A1 publication Critical patent/WO2012012784A1/en
Publication of WO2012012784A8 publication Critical patent/WO2012012784A8/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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with 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
    • A61M5/322—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
    • A61M5/3234—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
    • A61M2005/3242—Needle retraction by vacuum

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A retractable safety syringe may have a needle, needle holder, syringe body, and a plunger assembly. A proximal portion of the body and a piston of the plunger may define a vacuum chamber. The plunger assembly may comprise a distal piston and a proximal piston, with an intermediate chamber disposed between the two plungers. A vent through the syringe body pneumatically connects ambient air and the intermediate chamber allowing air to escape out of the intermediate chamber when a plunger assembly traversed toward the engaged position and allow air to be introduced into the intermediate chamber. A retraction force may be created by the vacuum chamber by traversing the plunger assembly to the engaged position. At the engaged position, the distal piston may engage the needle holder and the retraction force may retract the needle holder and needle into the syringe body to prevent accidental needle pricking and needle reuse.
PCT/US2011/045117 2010-07-23 2011-07-22 Multi-chambered retractable safety syringe WO2012012784A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2011800361324A CN103068422A (en) 2010-07-23 2011-07-22 Multi-chambered retractable safety syringe
CA2806331A CA2806331A1 (en) 2010-07-23 2011-07-22 Multi-chambered retractable safety syringe
AU2011280918A AU2011280918B2 (en) 2010-07-23 2011-07-22 Multi-chambered retractable safety syringe
EP11810504.8A EP2595676A4 (en) 2010-07-23 2011-07-22 Multi-chambered retractable safety syringe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/842,884 2010-07-23
US12/842,884 US8517986B2 (en) 2010-07-23 2010-07-23 Retractable safety syringe with non-loaded seal
US12/842,885 US8277422B2 (en) 2010-07-23 2010-07-23 Multi-chambered retractable safety syringe
US12/842,885 2010-07-23

Publications (2)

Publication Number Publication Date
WO2012012784A1 WO2012012784A1 (en) 2012-01-26
WO2012012784A8 true WO2012012784A8 (en) 2012-04-05

Family

ID=45497200

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2011/045116 WO2012012783A1 (en) 2010-07-23 2011-07-22 Retractable safety syringe with non-loaded seal
PCT/US2011/045117 WO2012012784A1 (en) 2010-07-23 2011-07-22 Multi-chambered retractable safety syringe

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2011/045116 WO2012012783A1 (en) 2010-07-23 2011-07-22 Retractable safety syringe with non-loaded seal

Country Status (5)

Country Link
EP (2) EP2595682A4 (en)
CN (1) CN103068422A (en)
AU (1) AU2011280918B2 (en)
CA (1) CA2806331A1 (en)
WO (2) WO2012012783A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104001241A (en) * 2013-02-21 2014-08-27 无锡星创生物技术有限公司 Piston device of retractable safety syringe
EP2905041A1 (en) * 2014-02-11 2015-08-12 Sulzer Mixpac AG Syringe
AU2018326619B2 (en) * 2017-08-30 2024-04-18 Pirouette Medical Inc. Compact auto-injector
US20210205584A1 (en) * 2018-05-18 2021-07-08 Bard Peripheral Vascular, Inc. Catheter with flaring tip

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004065A1 (en) * 1989-09-18 1991-04-04 Assumpsit No. 102 Pty. Ltd. Syringe
US6193695B1 (en) * 2000-01-14 2001-02-27 Wayland J. Rippstein, Jr. Disposable safety syringe having a retractable needle
US6458105B1 (en) * 2001-02-22 2002-10-01 Maxxon, Inc. Disposable syringe having a retractable needle
AUPS037802A0 (en) * 2002-02-08 2002-02-28 Hansen, Jeff Retractable disposable one-use needle
ES2267999T3 (en) * 2002-02-27 2007-03-16 Safeshot Technologies, Llc SAFETY SYRINGE WITH AUTOMATICALLY RETRACTABLE NEEDLE.
US6743194B2 (en) * 2002-03-28 2004-06-01 Igal Sharon Multi-compartment syringe
US7947020B2 (en) * 2005-05-09 2011-05-24 Safeshot Technologies, Llc Retractable safety syringe
US7972301B2 (en) * 2006-04-03 2011-07-05 Safeshot Technologies, Llc Safety needle syringe braking system
US20070250003A1 (en) * 2006-04-03 2007-10-25 Bare Rex O Fluid activated retractable safety syringe
US7972300B2 (en) * 2006-05-05 2011-07-05 Safeshot Technologies, Llc Syringe
US8088104B2 (en) * 2006-05-24 2012-01-03 Safeshot Technologies, Llc Syringe

Also Published As

Publication number Publication date
AU2011280918A1 (en) 2013-02-07
EP2595676A4 (en) 2014-01-01
EP2595676A1 (en) 2013-05-29
CN103068422A (en) 2013-04-24
WO2012012783A1 (en) 2012-01-26
AU2011280918B2 (en) 2013-05-02
WO2012012784A1 (en) 2012-01-26
CA2806331A1 (en) 2012-01-26
EP2595682A1 (en) 2013-05-29
EP2595682A4 (en) 2014-01-01

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