WO2002098480A2 - Seringue de securite - Google Patents

Seringue de securite Download PDF

Info

Publication number
WO2002098480A2
WO2002098480A2 PCT/US2002/016567 US0216567W WO02098480A2 WO 2002098480 A2 WO2002098480 A2 WO 2002098480A2 US 0216567 W US0216567 W US 0216567W WO 02098480 A2 WO02098480 A2 WO 02098480A2
Authority
WO
WIPO (PCT)
Prior art keywords
barrel
needle
sleeve
plunger
raised portions
Prior art date
Application number
PCT/US2002/016567
Other languages
English (en)
Other versions
WO2002098480A8 (fr
WO2002098480A3 (fr
Inventor
Hsien Tsung Wang
Original Assignee
Chen, Chung, Chin
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 Chen, Chung, Chin filed Critical Chen, Chung, Chin
Priority to US10/478,309 priority Critical patent/US20050027260A1/en
Priority to AU2002345397A priority patent/AU2002345397A1/en
Publication of WO2002098480A2 publication Critical patent/WO2002098480A2/fr
Publication of WO2002098480A3 publication Critical patent/WO2002098480A3/fr
Publication of WO2002098480A8 publication Critical patent/WO2002098480A8/fr

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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • A61M5/3272—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position having projections following labyrinth paths
    • 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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps

Definitions

  • the present invention relates to the field of hypodermic needles and more particularly to an improved syringe with enhanced safety characteristics.
  • FIG. 10 A conventional syringe is shown in FIG. 10 comprising a hollow syringe barrel 1 , a needle 2, and a cap 3.
  • a hollow syringe barrel 1 A hollow syringe barrel 1 , a needle 2, and a cap 3.
  • It is another object of the present invention to provide a retractable syringe comprising a cap; a sleeve including a front opening; a hollow barrel including a front nose; a needle unit including a needle housing sleeved on and attached to the nose of the barrel and a needle; and a plunger having a front plug sized to be snugly fitted within and slide through the barrel; wherein in use remove the cap from the sleeve, and dispense fluid from the barrel by pressing the plunger for causing the needle to extend from the opening of the sleeve; and after use pull the plunger to cause the barrel to slide rearward until the needle is received in the sleeve again, and put the cap onto the sleeve.
  • the sleeve further comprises a plurality of opposite flexible raised portions on an inner surface near a rear end, and the barrel further comprises a plurality of grooves on a surface with the raised portions slidably defined therein.
  • each groove comprises a rear end, a turning point, a transverse section, and a front end.
  • the barrel further comprises a plurality of opposite flexible flanges on the surface in a rear end.
  • the barrel further comprises an internal chamber sized to be snugly fitted onto an adapter of one of an intravenous (IV) infusion set, means for blood donation, and means for hypodermic injection.
  • IV intravenous
  • the barrel further comprises a peripheral recess near the nose, and the sleeve further comprises a plurality of opposite flexible raised portions on an inner surface near a rear end secured in the recess in an unused state.
  • a retractable syringe comprising a cap; a sleeve including a forward nose, an opening in a front end of the nose, a plurality of opposite slits in a rear end, and a plurality of opposite flexible raised portions on an inner surface near the rear end; a hollow barrel including a peripheral recess near a rear end for receiving the raised portions in an unused state, a front opening, and a rear opening; a needle unit including a needle housing sleeved on and attached to the nose of the barrel and a needle; and a plunger having a front plug sized to be snugly fitted within and slide through the barrel; wherein in use remove the cap from the sleeve, press
  • the number of the slits on opposite side are two and that of the raised portions are two.
  • FIG. 1 is a perspective view of a first preferred embodiment of safety syringe according to the invention
  • FIG. 2A is an exploded perspective view of FIG. 1 ;
  • FIG. 2B is similar to FIG. 2A where a second embodiment of sleeve member and syringe barrel is shown;
  • FIG. 2C is an enlarged fragmentary view of the sleeve member of FIG. 2B;
  • FIG. 2D is cross-sectional view of the sleeve member of FIG. 2B;
  • FIG. 3 is a cross-sectional view of FIG. 1 in an unused state;
  • FIG. 3A is a view similar to FIG. 3 where the syringe is in a use state with cap removed;
  • FIG. 4 is a side view in part section of a second preferred embodiment of safety syringe according to the invention
  • FIG. 5 is a side view in part section of a third preferred embodiment of safety syringe according to the invention.
  • FIG. 6 is a side view in part section of a fourth preferred embodiment of safety syringe according to the invention.
  • FIG. 7 is an exploded view of a fifth preferred embodiment of safety syringe according to the invention.
  • FIG. 8 is a perspective view of a sixth preferred embodiment of safety syringe according to the invention.
  • FIG. 8A is an exploded perspective view of FIG. 8;
  • FIG. 9 is a side view in part section of FIG. 8 in an unused state
  • FIG. 9A is a view similar to FIG. 9 where the syringe is in a use state with cap removed; and FIG. 10 is a perspective view of a conventional syringe in a use state.
  • the syringe comprises a cup-like cap 10; a substantially cylindrical sleeve member 20 including an opening 21 in the front tapered end and a pair of opposite flexible raised portions 22 on the inner surface near the rear end; a hollow syringe barrel 30 including a front nose 33, a pair of opposite grooves 31 on the surface with raised portions 22 slidably defined therein, each groove 31 including a rear end 31a, a turning point 31b, a transverse section 311 , and a front end 31c, an internal chamber 35, and a pair of opposite flexible flanges 351 on the surface in the rear end; a needle unit 40 including a needle housing 42 sleeved on and attached to nose 33 and a needle 41 having a tip 41a; and a plunger 50 having a front plug 51 sized to be snugly fitted within and slide through the internal chamber 35 and a
  • sleeve member 20 a second embodiment of sleeve member 20 and syringe barrel 30 is shown.
  • the differences between first and second embodiments of sleeve member 20 and syringe barrel 30 will now be described.
  • the members of syringe barrel 30 such as grooves 31 are replaced by a raised portion 32 near nose 33.
  • raised portions 22 are eliminated in sleeve member 20.
  • sleeve member 20 consists of two mating portions 20A and 20B.
  • Upper sleeve member 20B comprises two spaced latched edges 23B on the bottom, a recessed portion between latched edges 23B, and a slot 22C proximate the rear latched edge 23B.
  • Lower sleeve member 20A comprises two spaced mating latched edges 23A on the top and a recessed portion between latched edges 23A combined with the recessed portion of upper sleeve member 20B to form a slit in communication with slot 22C wherein raised portion 32 may slide in a defined path in the slit and slot 22C during the fluid injection or needle 41 retraction operation of the syringe.
  • a claw 231 is formed on each latched edge 23B and a mating claw 232 is formed on each latched edge 23A.
  • a complete sleeve member 20 is formed by snapping claws 231 of upper sleeve member 20B onto mating claws 232 of lower sleeve member 20A (FIG. 2D).
  • FIGS. 3 and 3A an operation of the first preferred embodiment of safety syringe is illustrated.
  • dispense fluid for hypodermic injection purpose
  • handle of plunger 50 During the dispensing, tip 41a of needle 41 gradually extends from opening 21 by sliding the raised portions 22 from front ends 31c to rear ends 31a through transverse sections 311 and turning points 31b.
  • tip 41a of needle 41 gradually extends from opening 21 by sliding the raised portions 22 from front ends 31c to rear ends 31a through transverse sections 311 and turning points 31b.
  • FIG. 4 there is shown a second preferred embodiment of safety syringe according to the invention. The difference of this and first embodiments will now be described.
  • the plunger 50 is replaced by a larger plunger 60 adapted for blood donation usage.
  • Plunger 60 has a front plug 61 sized to be snugly fitted within and slide through the internal chamber 35 and a forward end having a mating mechanism (not shown) releasably .coupled to flanges 351.
  • FIG. 5 there is shown a third preferred embodiment of safety syringe according to the invention.
  • the plunger 50 is replaced by an adapter 70 of an intravenous (IV) infusion set.
  • the adapter 70 has a front plug 71 sized to be snugly fitted within and slide through the internal chamber 35 and a forward end having a mating mechanism (not shown) releasably coupled to flanges 351.
  • FIG. 6 there is shown a fourth preferred embodiment of safety syringe according to the invention.
  • the difference of this and first embodiments will now be described,
  • the plunger 50 is replaced by an adapter 80 of another type of IV infusion set.
  • the adapter 80 has a front plug 81 sized to be snugly fitted within and slide through the internal chamber 35 and an enlarged forward end having a mating mechanism (not shown) releasably coupled to flanges 351.
  • FIG. 7 there is shown a fifth preferred embodiment of safety syringe according to the invention.
  • the difference of this and first embodiments will now be described.
  • the members of syringe barrel 30 such as opposite grooves 31 are replaced by a peripheral recess 34 near nose 33.
  • raised portions 22 are secured in recess 34.
  • user may clear raised portions 22 from recess 34 and slide down sleeve member 20 for receiving the syringe barrel 30 until in place.
  • the sleeve member 20 is replaced by a sleeve member 20' including a forward nose 25, an opening 26 in the front end of nose 25, two sets of a plurality of opposite slits 24 and 24' (each set having two slits as shown) in the rear end, and a pair of opposite flexible raised portions 23 on the inner surface near the rear end (i.e., each raised portion 23 is on the inner surface of a portion between two slits 24 and 24' for allowing the portion between slits 24 and 24' to be flexible transversely for conforming the engagement/disengagement of recess 36 and raised portions 23).
  • the syringe barrel 30 is replaced by a substantially cylindrical barrel 30' including a peripheral recess 36 near the rear end for receiving raised portions 23 in an unused state, a front opening 37, and a rear
  • the operation of the sixth embodiment is substantially the same as that of the first one.
  • press handle of plunger 50 to disengage raised portions 23 from recess 36 prior to dispensing fluid from barrel 30' completely.
  • tip 41a of needle 41 gradually extends from sleeve member 20 until the front end of barrel 30' engages with the inner surface of the shoulder portion with nose 25 extended therefrom.
  • simply pulling handle of plunger 50 to cause the raised portions 23 to slide reversely until raised portions 23 engages with recess 36 again.
  • the benefit of this invention includes the retraction of needle 41 into syringe barrel 30 being done in the rear of the needle 41 after use, thereby preventing a medical worker from being contaminated by microorganisms or blood on the needle 41 by accidentally pricking.

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

Abstract

L'invention concerne une seringue de sécurité comprenant un manchon ; un corps de pompe creux incluant une partie avant ; une aiguille ; et un piston ajusté étroitement et coulissant dans le corps de pompe. Après utilisation, on retire le piston de façon à faire coulisser le corps de pompe vers l'arrière jusqu'à ce que l'aiguille soit reçue à nouveau dans le manchon, ce qui permet de prévenir toute piqûre accidentelle du personnel médical et donc toute contamination par des micro-organismes ou du sang situés sur l'aiguille.
PCT/US2002/016567 2001-06-05 2002-06-05 Seringue de securite WO2002098480A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/478,309 US20050027260A1 (en) 2001-06-05 2002-06-05 Safety syringe
AU2002345397A AU2002345397A1 (en) 2001-06-05 2002-06-05 Safety syringe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01226524U CN2484969Y (zh) 2001-06-05 2001-06-05 注射针头的安全装置
CN01226524.1 2001-06-05

Publications (3)

Publication Number Publication Date
WO2002098480A2 true WO2002098480A2 (fr) 2002-12-12
WO2002098480A3 WO2002098480A3 (fr) 2003-08-14
WO2002098480A8 WO2002098480A8 (fr) 2003-12-31

Family

ID=4698038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/016567 WO2002098480A2 (fr) 2001-06-05 2002-06-05 Seringue de securite

Country Status (3)

Country Link
CN (1) CN2484969Y (fr)
AU (1) AU2002345397A1 (fr)
WO (1) WO2002098480A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1457221A1 (fr) * 2003-03-14 2004-09-15 Ming-Jeng Shue Seringue jetable
US8062252B2 (en) 2005-02-18 2011-11-22 Becton, Dickinson And Company Safety shield system for a syringe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102525488B (zh) 2011-12-01 2013-09-25 上海金塔医用器材有限公司 一次性使用无菌回缩安全采血针
CN102626314A (zh) * 2012-04-28 2012-08-08 上海金塔医用器材有限公司 一次性使用回缩安全采血袋

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487834A (en) * 1967-08-16 1970-01-06 Silas S Smith Jr Paracervical and pudendal appliance
US5019051A (en) * 1989-03-02 1991-05-28 Needlepoint Guard, Inc. Hypodermic needle guard
US5232457A (en) * 1991-08-05 1993-08-03 Grim John P Medical syringe
US5290255A (en) * 1993-02-02 1994-03-01 Vallelunga Anthony J Apparatus for shielding a syringe needle
US5498243A (en) * 1995-01-31 1996-03-12 Unique Management Enterprises, Inc. Apparatus for shielding a syringe needle
US5795336A (en) * 1993-02-11 1998-08-18 Beech Medical Products, Inc. Automatic needle protector having features for facilitating assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487834A (en) * 1967-08-16 1970-01-06 Silas S Smith Jr Paracervical and pudendal appliance
US5019051A (en) * 1989-03-02 1991-05-28 Needlepoint Guard, Inc. Hypodermic needle guard
US5232457A (en) * 1991-08-05 1993-08-03 Grim John P Medical syringe
US5290255A (en) * 1993-02-02 1994-03-01 Vallelunga Anthony J Apparatus for shielding a syringe needle
US5795336A (en) * 1993-02-11 1998-08-18 Beech Medical Products, Inc. Automatic needle protector having features for facilitating assembly
US5498243A (en) * 1995-01-31 1996-03-12 Unique Management Enterprises, Inc. Apparatus for shielding a syringe needle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1457221A1 (fr) * 2003-03-14 2004-09-15 Ming-Jeng Shue Seringue jetable
US8062252B2 (en) 2005-02-18 2011-11-22 Becton, Dickinson And Company Safety shield system for a syringe

Also Published As

Publication number Publication date
CN2484969Y (zh) 2002-04-10
WO2002098480A8 (fr) 2003-12-31
WO2002098480A3 (fr) 2003-08-14
AU2002345397A1 (en) 2002-12-16

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