[go: up one dir, main page]

WO2014072994A3 - Folded plunger auto retractable syringe for single use - Google Patents

Folded plunger auto retractable syringe for single use Download PDF

Info

Publication number
WO2014072994A3
WO2014072994A3 PCT/IN2013/000656 IN2013000656W WO2014072994A3 WO 2014072994 A3 WO2014072994 A3 WO 2014072994A3 IN 2013000656 W IN2013000656 W IN 2013000656W WO 2014072994 A3 WO2014072994 A3 WO 2014072994A3
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
barrel
assembly
proximal end
needle carrier
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.)
Ceased
Application number
PCT/IN2013/000656
Other languages
French (fr)
Other versions
WO2014072994A2 (en
Inventor
Jai Hind RATHORE
Bharati RATHORE
Pratibha RATHORE
Neelam RATHORE
Bhuvan Chandra RATHORE
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.)
Individual
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 WO2014072994A2 publication Critical patent/WO2014072994A2/en
Publication of WO2014072994A3 publication Critical patent/WO2014072994A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • A61M5/31505—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit
    • 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
    • A61M5/32—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
    • 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
    • A61M2005/3231—Proximal end of needle captured or embedded inside piston head, e.g. by friction or hooks
    • 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

The present subject matter relates to an auto retractable safety syringe (100) for single use which includes a needle carrier assembly (108) and a folded plunger assembly (200) respectively for inserting in an outermost barrel (110). The folded plunger assembly (200) is provided with an inner plunger barrel (102), an outer plunger barrel (104) and a plunger plug (106). The inner plunger barrel (102) is provided with at least one oppositely positioned circumferential C-groove (122) on outer surface at its proximal end P, a pair of oppositely positioned finger locks (118 and 120) on either end to get engaged with an outer plunger barrel (104), and a piston seal holder (114) structured at the proximal end P for holding a piston seal (116). The outer plunger barrel (104) includes at least one pair of oppositely positioned finger locks (156 and 158) on both ends and a second piston seal holder (124) at proximal end P for holding another piston seal (126). The folded plunger assembly is also provided with the plunger plug (106) which is designed with at least one uniform circumferential groove (136) wherein the plunger plug (106) is centrally designed with a longitudinally furrowed knob (140) at its proximal end P. The present subject matter also discusses about the needle carrier assembly (108) for housing in the outermost barrel (110) in which the needle carrier assembly (108) includes a seat and internal locking arrangement (148) provided in a central axial passage opening designed in a cavity (146) at the distal end D to snap lock the furrowed knob (140) present in the plunger plug (106), a needle (152) provided with a needle cover (154) at the proximal end P of the needle carrier assembly (108), and the elastic O-rings (132) to support and hold the needle carrier assembly 108 inside the outermost barrel (110), and to dislodge the assembly on completion of injection. The present invention further explains that the outermost barrel (110) designed to receive the folded plunger assembly (200) alter getting in the needle carrier assembly (108), wherein the outermost barrel (110) is provided with a finger rest (128), a uniform obtuse-angled L-shaped inner circumferential conical groove (130) and a conical jacket opening (134) at the proximal end of the outermost barrel (110).
PCT/IN2013/000656 2012-11-08 2013-10-29 Folded plunger auto retractable syringe for single use Ceased WO2014072994A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3476/DEL/2012 2012-11-08
IN3476DE2012 2012-11-08

Publications (2)

Publication Number Publication Date
WO2014072994A2 WO2014072994A2 (en) 2014-05-15
WO2014072994A3 true WO2014072994A3 (en) 2014-09-04

Family

ID=50685276

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2013/000656 Ceased WO2014072994A2 (en) 2012-11-08 2013-10-29 Folded plunger auto retractable syringe for single use

Country Status (1)

Country Link
WO (1) WO2014072994A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12440623B2 (en) 2023-03-01 2025-10-14 Pacto Medical Inc. Assemblable compact syringe with side mounted plunger rod

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040087907A1 (en) * 2002-11-01 2004-05-06 Smith Martin E. Disposable safety syringe
WO2004039441A2 (en) * 2002-10-30 2004-05-13 Jun Piao Teng Vacuum auto-retractable safety syringe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004039441A2 (en) * 2002-10-30 2004-05-13 Jun Piao Teng Vacuum auto-retractable safety syringe
US20040087907A1 (en) * 2002-11-01 2004-05-06 Smith Martin E. Disposable safety syringe

Also Published As

Publication number Publication date
WO2014072994A2 (en) 2014-05-15

Similar Documents

Publication Publication Date Title
US12102802B2 (en) Syringe carrier
EP2788052B1 (en) Syringe carrier
JP2008516676A5 (en)
US7097636B2 (en) Needle protection device intended for a carpule and injection device comprising a carpule and this protection device
US20160250421A1 (en) Injector devices
IL291521B2 (en) Injection device, in particular autoinjector, for the simultaneous administration of several medications
MX365140B (en) Retractable needle adapters and safety syringes.
JP2016503675A5 (en)
WO2007101090A3 (en) Retractable needle syringe with needle trap
GB2542202A (en) Injection device
JP2023038350A (en) injection device
JP2016187719A5 (en) Needle assembly and retractable syringe with needle assembly
JP6211790B2 (en) Syringe
EP4233939A3 (en) Safety needle device
US20160317755A1 (en) Safety syringe
WO2014072993A3 (en) Folded- plunger auto-retractable disposable syringe
WO2016192739A3 (en) An injector for preventing accidental needle sticks
CA2829372C (en) Retractable syringe with locking plunger
WO2014072994A3 (en) Folded plunger auto retractable syringe for single use
TW201433327A (en) Needle guard
JP2015500072A5 (en)
IN2014DN09317A (en)
GB2559084A (en) Trocar
RU2018126191A (en) WRENCHING SYRINGES
WO2014080421A3 (en) Auto-retractable safety syringe for single use

Legal Events

Date Code Title Description
122 Ep: pct application non-entry in european phase

Ref document number: 13853526

Country of ref document: EP

Kind code of ref document: A2