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WO1999034851A1 - Systeme de verrouillage et de blocage de seringues jetables - Google Patents

Systeme de verrouillage et de blocage de seringues jetables Download PDF

Info

Publication number
WO1999034851A1
WO1999034851A1 PCT/BR1998/000004 BR9800004W WO9934851A1 WO 1999034851 A1 WO1999034851 A1 WO 1999034851A1 BR 9800004 W BR9800004 W BR 9800004W WO 9934851 A1 WO9934851 A1 WO 9934851A1
Authority
WO
WIPO (PCT)
Prior art keywords
syringe
claws
barrel
locking
retaining ring
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/BR1998/000004
Other languages
English (en)
Inventor
José Luiz DE PAIVA MARQUES
Antonio Carlos Antolini Junior
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
Priority to AU57435/98A priority Critical patent/AU5743598A/en
Publication of WO1999034851A1 publication Critical patent/WO1999034851A1/fr
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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M2005/5006—Having means for destroying the syringe barrel, e.g. by cutting or piercing

Definitions

  • the present invention has the finality to avoid the re-utilization of detachble syringe, considering that this -device permits only one utilization, after the first relieve- tion, the syringe auto-locks, itself (itself), and it becomes not-utilizable, and it's denominated: not re-utilizable ( ⁇ UTO_ LOCKING SYRINGE ) .
  • This device was created to be aplied in the big a jority of the actual descardble syringes that are sold on the market, so, it's conception doesn't change, and the device or mechanism can be installed in any kind of syringes, any size, - any capacity.
  • the device or mechanism consists into two parts :pro tector RING and small cross claw (SEE FIGURE "A”- PAGE 01/03) and (FIGURE "B”- PAGE 01/03).
  • the ring (FIGURE A"A- PAGE 01/03) is made of the -same material of the syringe body, it's dimensions v ⁇ -riate according to the syringe dimensions, the internal syringe diameter, is the: ring's diameter the ring's height up to 5ml is one half of the external diameter of the syringe: 3 ml and 4ml,: 3/4 of the external diameter of the syringe; and lower -than 2rrJ the syringe's external diameter is the same of the syringe ' s body .
  • the small cross (FIGURE "B”- PAGE 01/03), is made of inoxidable stainless metal or similar, and flexible, very hard, the diameter is the same used on the syringe needle, and -usually the height is 4mm larger than the syringe, where it will be applied two shafts (FIGURE "F”- PAGE 03/03), they are fixed with contact solder and the extrerni ties ..sr ⁇ nee leshape for a good locking, and it's fixation (CF TI-IE SHAF OF T ⁇ I SYRINGE), (FIGURE "E” , AND CORTEX “F-F”- PAGE 01/03) is made during the sha t's manufacturing becoming fused in the middle of the reforce corners, but the center of the small cross is fixed, and it's points free to move.
  • the syringe manufacturing with the "locking device” is according the sequence of the page (02/03), firstly is mounted the rubber-wadding, and inserting it inside the syringe's body until the bottom of the rubier (FIGURE “G"), and is mounted the protector ring of the claw of the small cross, -and the ring is divided into: (CORTEX “C-C” ON FIGURE "A” PAGE 01/03) to close it and to be inserted in the body of the syringe passing through the superior part of this body, that is closed 2mm (SUPERIOR PART OF THE FIGURE "H” PAGE 02/03) and the ring is fixed on the rubleer wadding (FIGURE "H”- PAGE -02/03), and it's mounted on the syringe's shaft, with the small cross and claws fused, when inserting the clav/s in the body of the syringe (SUPERIOR BODY), with a light pressure ,
  • FIGURE "J" show the syringe virgin
  • the figure “K” shows the syringe already with succioned liquid, the protector ring of small cross, with the claws retired, it permits a slightly movement upward, it's pushed by the claws and -by the rubleer waddiny the system permits the expulsion of the air inside the syringe at the end of the succion of the liquid in the vase, it also permits the backlash of the blood, certifing that the needle touched the artery.
  • This one is imoveble (fixed), it permits that the shaft flow dov/n, and the clav/s are libered from the internal part of the syringe's body and ejecting all liquid inside it, after this process the syringe it fully locked (SEE FIGUR ⁇ "L" -ON PAGE 03/03) the four claws are towhed in the internal part of the syringe, it doesn't permit that the shaft return, if there is an harder effort to push out the shaft, the four- claws will perfurate/or/damage the syringe's body defineti- vely (FIGURE "II"- PAGE 03/03). - After the locking system is mounted (SEE FIGURE "J"

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (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

Cette seringue jetable auto-verrouillable à usage unique comprend un cylindre, un plongeur et un élément de verrouillage pour éviter une aspiration ultérieure. L'élément de verrouillage comprend des griffes élastiques à expansion radiale reliées au plongeur et sollicitées les unes contre les autres par une bague de retenue afin de les empêcher d'entrer en contact avec la paroi intérieure du cylindre. Pendant la course d'injection, le frottement entre la bague de retenue et la paroi latérale intérieure du cylindre est plus grand que le frottement entre la bague de retenue et les griffes. Par conséquent, la bague de retenue reste stationnaire à l'extrémité proximale du cylindre, les griffes se détachent de la bague de retenue et s'écartent radialement, à cause de leur élasticité, accrochant la paroi latérale intérieure du cylindre et empêchant la tige du plongeur de revenir en arrière, ce qui ne permet pas de recharger la seringue. En outre, si l'on essaie de forcer le plongeur à revenir en arrière afin de recharger la seringue, les griffes percent le cylindre de la seringue à cause de leurs extrémités acérées. Les frais de production de l'élément de verrouillage sont très bas.
PCT/BR1998/000004 1998-01-09 1998-01-30 Systeme de verrouillage et de blocage de seringues jetables Ceased WO1999034851A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57435/98A AU5743598A (en) 1998-01-09 1998-01-30 Locking and blocking system for discardable or disposable syringe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR9800002-0A BR9800002C1 (pt) 1998-01-09 1998-01-09 Dispositivo de travamento para seringas descartáveis.
BRPI9800002 1998-01-09

Publications (1)

Publication Number Publication Date
WO1999034851A1 true WO1999034851A1 (fr) 1999-07-15

Family

ID=4068946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR1998/000004 Ceased WO1999034851A1 (fr) 1998-01-09 1998-01-30 Systeme de verrouillage et de blocage de seringues jetables

Country Status (3)

Country Link
AU (1) AU5743598A (fr)
BR (1) BR9800002C1 (fr)
WO (1) WO1999034851A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731068A (en) * 1987-05-01 1988-03-15 Hesse John E Non-reloadable syringe
EP0308040A1 (fr) * 1987-09-18 1989-03-22 Path Seringue jetable à usage unique
WO1990007949A1 (fr) * 1989-01-10 1990-07-26 Emeric Guy Fenet Seringues jetables non reutilisables et procedes de fabrication
US5021047A (en) * 1989-08-29 1991-06-04 Movern John B Restricted use hypodermic syringe
DE4034673A1 (de) * 1990-09-27 1992-04-02 Bader & Partner Medizintechnik Spritze, insbesondere fuer den medizinischen gebrauch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731068A (en) * 1987-05-01 1988-03-15 Hesse John E Non-reloadable syringe
EP0308040A1 (fr) * 1987-09-18 1989-03-22 Path Seringue jetable à usage unique
WO1990007949A1 (fr) * 1989-01-10 1990-07-26 Emeric Guy Fenet Seringues jetables non reutilisables et procedes de fabrication
US5021047A (en) * 1989-08-29 1991-06-04 Movern John B Restricted use hypodermic syringe
DE4034673A1 (de) * 1990-09-27 1992-04-02 Bader & Partner Medizintechnik Spritze, insbesondere fuer den medizinischen gebrauch

Also Published As

Publication number Publication date
BR9800002A (pt) 2000-04-18
BR9800002C1 (pt) 2000-04-25
AU5743598A (en) 1999-07-26

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