WO2006121513A3 - Improved syringe - Google Patents

Improved syringe Download PDF

Info

Publication number
WO2006121513A3
WO2006121513A3 PCT/US2006/011312 US2006011312W WO2006121513A3 WO 2006121513 A3 WO2006121513 A3 WO 2006121513A3 US 2006011312 W US2006011312 W US 2006011312W WO 2006121513 A3 WO2006121513 A3 WO 2006121513A3
Authority
WO
WIPO (PCT)
Prior art keywords
syringe
syringe body
plunger
body end
shaft
Prior art date
Application number
PCT/US2006/011312
Other languages
French (fr)
Other versions
WO2006121513A2 (en
Inventor
Daniel Thayer
Original Assignee
Safeshot Technologies Llc
Daniel Thayer
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 Safeshot Technologies Llc, Daniel Thayer filed Critical Safeshot Technologies Llc
Priority to EP06739845A priority Critical patent/EP1879634B1/en
Publication of WO2006121513A2 publication Critical patent/WO2006121513A2/en
Publication of WO2006121513A3 publication Critical patent/WO2006121513A3/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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M2005/3151—Means for blocking or restricting the movement of the rod or piston by friction
    • 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

Abstract

A retractable needle safety syringe is provided having mitigated retraction. The syringe comprises a syringe body, a syringe cavity, a plunger, a variable vacuum compartment, a shaft brake, and a ram member. The plunger assembly includes a plunger shaft and a piston slidably engaged within the syringe body. The variable vacuum compartment is disposed within the syringe cavity and provides a vacuum force on the plunger shaft directed from a bottom syringe body end toward a top syringe body end. The shaft brake, being attached to the top syringe body end, may frictionally engage the plunger shaft to provide first and second frictional forces in opposition to the vacuum force, the first frictional force being exerted prior to the piston reaching the bottom syringe body end, the second frictional force being exerted in response to the engagement of the ram member with the shaft brake.
PCT/US2006/011312 2005-05-09 2006-03-28 Improved syringe WO2006121513A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06739845A EP1879634B1 (en) 2005-05-09 2006-03-28 Improved syringe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US67911305P 2005-05-09 2005-05-09
US60/679,113 2005-05-09
US11/387,625 US20060264840A1 (en) 2005-05-09 2006-03-23 Syringe
US11/387,625 2006-03-23

Publications (2)

Publication Number Publication Date
WO2006121513A2 WO2006121513A2 (en) 2006-11-16
WO2006121513A3 true WO2006121513A3 (en) 2007-11-22

Family

ID=37397026

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/011312 WO2006121513A2 (en) 2005-05-09 2006-03-28 Improved syringe

Country Status (3)

Country Link
US (2) US20060264840A1 (en)
EP (1) EP1879634B1 (en)
WO (1) WO2006121513A2 (en)

Families Citing this family (20)

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ES2533878T3 (en) 2004-09-03 2015-04-15 L.O.M. Laboratories Inc. Gas-operated retractable syringe
CN102085405B (en) * 2006-03-13 2012-10-31 医疗卫士有限公司 A needle containing medical device with variable locking to needle holder
WO2007130388A2 (en) * 2006-05-05 2007-11-15 Safeshot Technologies, Llc Improved syringe
US8088104B2 (en) * 2006-05-24 2012-01-03 Safeshot Technologies, Llc Syringe
JP4994775B2 (en) 2006-10-12 2012-08-08 日本コヴィディエン株式会社 Needle point protector
US20080154212A1 (en) * 2006-12-26 2008-06-26 Stat Medical Devices, Inc. Syringe with retractable needle support
KR200442835Y1 (en) * 2008-05-06 2008-12-17 최숙녀 Safety syringe
US8517986B2 (en) 2010-07-23 2013-08-27 Safeshot Technologies, Llc Retractable safety syringe with non-loaded seal
US8277422B2 (en) 2010-07-23 2012-10-02 Safeshot Technologies, Llc Multi-chambered retractable safety syringe
US8486024B2 (en) 2011-04-27 2013-07-16 Covidien Lp Safety IV catheter assemblies
WO2013048975A1 (en) 2011-09-26 2013-04-04 Covidien Lp Safety catheter
EP2760521B1 (en) 2011-09-26 2016-01-06 Covidien LP Safety iv catheter and needle assembly
US8834422B2 (en) 2011-10-14 2014-09-16 Covidien Lp Vascular access assembly and safety device
WO2013126853A2 (en) 2012-02-23 2013-08-29 Unitract Syringe Pty Ltd Devices for targeted delivery of therapeutic implants
KR20140124861A (en) 2012-02-23 2014-10-27 유니트랙트 시린지 피티와이 엘티디 Retractable needle safety syringes
US10272234B2 (en) 2012-02-23 2019-04-30 Unl Holdings Llc Devices for targeted delivery of therapeutic implants
US20150065917A1 (en) * 2013-08-27 2015-03-05 Daniel Alberto Ierfino Needle extension and retraction mechanism for a syringe for drawing blood samples and provided with a vacuum tube
JP2018507732A (en) 2015-03-10 2018-03-22 ヒンド ラソア，ジャイ Fluid injection system and method
FR3038518A1 (en) 2015-07-08 2017-01-13 Guerbet Sa SYRINGE AND METHOD OF ASSEMBLING
USD982743S1 (en) 2023-01-09 2023-04-04 Abrham Gebremariam Hagos Syringe flask

Citations (1)

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US20040122375A1 (en) * 2002-07-02 2004-06-24 Woodard, James A. Retractable hypodermic syringe

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Publication number Priority date Publication date Assignee Title
US20040122375A1 (en) * 2002-07-02 2004-06-24 Woodard, James A. Retractable hypodermic syringe

Also Published As

Publication number Publication date
US20070000556A1 (en) 2007-01-04
US7572247B2 (en) 2009-08-11
EP1879634B1 (en) 2012-05-16
EP1879634A2 (en) 2008-01-23
US20060264840A1 (en) 2006-11-23
WO2006121513A2 (en) 2006-11-16
EP1879634A4 (en) 2009-06-03

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