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WO1998058694A1 - Syringue automatiquement retractable non reutilisable - Google Patents

Syringue automatiquement retractable non reutilisable Download PDF

Info

Publication number
WO1998058694A1
WO1998058694A1 PCT/IB1998/000950 IB9800950W WO9858694A1 WO 1998058694 A1 WO1998058694 A1 WO 1998058694A1 IB 9800950 W IB9800950 W IB 9800950W WO 9858694 A1 WO9858694 A1 WO 9858694A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
plunger
piston
fragile
needle
Prior art date
Application number
PCT/IB1998/000950
Other languages
English (en)
Inventor
Jun Piao Teng
Original Assignee
Jun Piao Teng
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 Jun Piao Teng filed Critical Jun Piao Teng
Priority to AU76695/98A priority Critical patent/AU7669598A/en
Publication of WO1998058694A1 publication Critical patent/WO1998058694A1/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
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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

Definitions

  • the present invention rel t ⁇ in general to an automatic r et r a t ed n ⁇ n-r eusah ] e syr i nge ,
  • the needle carrier also includes a fragile portion which can be brot en off and is important that it should do so if the reuser attempts to separate the needle carrier from the pl nger, so that the spent syringe cannot be reused. Even though an attempt may be made to glue the brol- n needl carrier together again, the rejoined structure will generally not functions properly. Tn one embodiment, the structure is such that an air-leal- ing hole will generally be formed at the join.
  • the needle- carrier so that can be automatic lly retracted with the plunger into the hollow body by the reversed elastic force from the springy matters after inserting tightly the pipe-shaped intruder of the plunger shaft into the 1 hollow centre of the needle carrier when the injection is completed, so as to prevent the spent needle to injure people ac identally.
  • the needl ra ⁇ a to expel liquid from the hollow body through the needle wherein one end of the piston and the holl w body include springy mean*--, and other end of the piston terminated with intruding m ⁇ ns for engaging the plunger to the needle r arr i ⁇ r upon fully d sing th pi unger whereby automatically retraction of the plunger by the springy means causes the needle and carrier to enter the holl w body, cha cter i red in that the inner wall of the hollow body includes a plurali y of projecting portions a the midway for monitoring the iston to to upon retracting autom ic lly by the springy mean ⁇ of the bod> , the inner wall of the protruding conduit inclu es a plurality of projecting portions for locl-mg the needle carrier on injection, the shaft of the plunger includes a fragile portion in associated with a g ⁇ adjacent the piston for hreal- ing the c-haft to isolate the retracted
  • the fr gil p rtion of he intruding mean ⁇ ⁇ ⁇ -- an annular notch.
  • the flangibl portions at the midway inner wall of the holl w body contains a perimetric flange and a plu ality o l teral notches in rows alon therein.
  • the projecting portions the upper i ner wall of the protruding conduit is an interl ping notch.
  • the fragil portion in associated with the gap adjacent to the piston is a 7 ⁇ shaped fragile portion.
  • Figure 3B shows c os ⁇ —se 1 onal VIP of the same assembled syringe on the fra il section when the plunger is fully depressed and the intruder is inserted into the centre of needl carrier.
  • Figure 4A shows an enlargement of the needle car ier in its original position on fragile section in the syringe and h the intruder of the plunger is being inserted with outflow of the liquid into the hollow centre of the needl carrier,
  • Figure 4R ⁇ hows an enl rgement of the needl carrier in its or ⁇ g ⁇ na1 p s111 on on fr ag 11 e sec11 n i the syringe and how the intruder of the plunger has ins rted and is pr sed tightly by the internal wal l of hol low centre of carrier.
  • Figure SB shows an enlargement of the 7- ⁇ haped fragile
  • Figure " 7 shows an enlargement in cross-sectional top view of the needle carrier being fixed at the protruding conduit of the hol low body and how the carrier flange is released from the jntprlorl ing notches when the user a tempts to retract the spent needle into the hollow body.
  • Figure 8 how s ⁇ ross-sectional view of the assembled syringe with the needle carrier and the needle -3-
  • Figure 10 shows a cr ss-sec ional view of the assembled syringe with the needle carrier and the plunger being brol- n off at i s 7-shaped fragile portion when the reuser at mpts to withdraw the plunger hy violent force.
  • Figure 11 show a cros s -sectional view ot the assembled syringe with the needle ,-arr ⁇ er and the econd
  • part of intruder being brol- n off at its annular fragil portion stict ing at the needle entrance of the carr ier when the reuser attempts to release the inserted in ruder from the needle carrier by pull ing the needl carrier from other end of the the hollow body.
  • Figure 1 shows another embodiment of the assembled syringe with eccentric opening of the hollo body at the
  • Figure 1 shows he- espec i e parts of a syringe of an embodiment which comprises a hollow body ⁇ 1 ' “ > ⁇ , a plunger ' 2' “ ' > and a needle carrier f' 3f " )',
  • the body (t f" )> has a irs flange Hi ⁇ at the upper end and a protruding conduit ⁇ 16) at the lower end.
  • a second flange (1 ) is disposefl i ternally nearby the male holders (12) of the body (K “ )) j , which internal diameter i slightly smaller than the xt nal diameter of the fourth flange ( 2 > ro that the assemble needle carrier ⁇ 3 ⁇ " ) > and plunger ⁇ 2' " ' > is stopped there inside the body ⁇ 1 f> > as the assembled unit is withdrawn therefrom.
  • the chemical composition of h material used is the a e as the xi ting singl -use syringe s ld in the ma l-et i.e. the moplastic Polypr pylene with the same physical and chemical char teristic .
  • the capa i ty of the medication l iquid is indicated as scale msr ( not sh wri > on t tie wal l ⁇ - ⁇ f the hol low body.
  • each of whi h is eith r a tiny spring coil made of plastic or metal materials, or a piece of I- my elastic rubber band i e about 12 mm, in or iginal length and 1.1 mm. in thicl-ness, whichever is suitable n economic factor, a gap
  • the pi t n ' 2 ⁇ ") 1 includes supporting flange ( 61 > and fi fth flange ( 27 ) terminating with a pipe-shaped intruder t 28 > surrounded with a rubber tip f 2"- ⁇ > , the intruder ( 28 > is divided by a V-shaped annular fragile notch ⁇ 28 ⁇ " > to form a first part of intruder ( 281 > and a second part of intruder ( 28 " ') with ⁇ f1 al b s t 28D > , both of which having plural i y of air no h s ( -, RA ?
  • the intruder (28) is r und-shaped -s l id plastic pipe protruding originated from th fifth flange f " '7 ) I o the e/.tent of 12.5 mm length till the f 1 al base c 28D > .
  • the intruder (28) is e j e hy a V— haped annular fragile notch ⁇ 28C > to form a first part of intruder (281) and a second part of intruder (282> r spectively.
  • the fragile notch ⁇ 28C > is a sharp notch starting with 1 mm in width and 1.2 mm of average depth along the xt nal surface which is located at appro imately 2 mm 3 stance from the base ⁇ 28D > of the intruder (28).
  • the whole diameter of the notch po tion ( 28 ⁇ ) is 3 relieff , mm and leaving the uncut diameter 1.2 mm which is quite easy to breal- .
  • the first part of intruder ( 281 > has plurality of air notches ⁇ 28A > which ⁇ s ⁇ is about 1 mm in wi th and 1 mm i depth of each cutting along its surrounding wal 1 , which are originated fr m the approvimate middle of the irs part of ntru
  • Figure i locates the posi ion of the a s mbled yring where the four wings of the shaft (23) conne ted with same quantity of the fragil portions (24) projecting towards four directions along the inner wal I of the body MO), each fragile o ti n t "'4 ' run ac oss ⁇ row of lateral no h s ⁇ 14> which ar ⁇ a casted regularly with the sam p ojec in h ight, depth f length and notch distance o each other as mentioned in aforesaid Figure 1 ? to worl- as the midway stations whenever the u r t ?
  • the female spring holder section ⁇ 2fi > of the plunger ( 20 ) having t o female holders rast towards opposite directions at the centre of the flange ( 26 ) in between two wings of the shaft ( 23> to face towards another pair of mal holders (12) which are- casted on the inner wall of the flange (11 ) r p t i vel y
  • Figure 7 lo ates the positions of the assembled needle carrier (" 3 ⁇ " >) and the conduit (If..) f the body (10) y where a pair of ⁇ nter 1 oc I- mg otch s ( 15) projecting towards each other oppositely at the inner upper end of the conduit f l ⁇ >»
  • the projec ing l ngth of the notches (15) i only 0, mm off the inner wall therein,, and just good enough to ,- over on the top edge of the oval s ti n of the carrier fl nges (3tA> leaving the upper end (31 > of the carrier ' 3 ⁇ .
  • Each interloclmg notch ( 15) at the internal upper end of the conduit (16) is designed in line with the specific row about 3 mm in width of the lateral notches ( 14 ) which are regularly casted at the internal midway of the body ( l > where the fragile portions (24) will als come across n reciprocal movements, so that when the intruder (28) as aforesaid turns the carrier flanges ( 31A> a little bit of angles off the inter lo i- ing notches (15> using the flange ( 21) at the upper -2 ⁇ ">- end Aft the injection, the ela fii.
  • Anottier alternative is to hold the shaft (23) firmly on one ide, and simultaneously pulling violently the needle t 3 > at other side for purpose of r el ea c ing the carrier ( 3 ⁇ > from the intruder ( 28 > inside the body (10).
  • FIG. J Another type of syringe with eccentrii opening of the hollow body ( 10> at the lower end is shown in Figure J .
  • the piston ( 201) together with the needle carrier ( 3 ⁇ > is automatically retracted by the springy matters (17) as well as the plunger (20 ) and the intruder (28 ) are designed to be broken off at the fragile portions 1 4 y 28 ⁇ ⁇ > upon violent withdrawal radical
  • a reuser may then attempt to glue the brol- n parts of the plunger ( 20> and the intruder '28' at both the fragile portions ( 24, 28C > , but due to both brc en areas (24, 28C > are so small and weal that even after conventional gluing (not hown) they are still impossi hi e t support the viol nt pulling force upon repeated withdrawal as aforesaid a r di ngl y »

Landscapes

  • 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

La présente invention concerne une seringue comportant un dispositif de pénétration (28) qui permet, lorsque l'on enfonce manuellement le piston (20) jusqu'au bout, de mettre le piston (20) en contact avec un support (30) monté dans le conduit (16) du corps (10), lequel piston se rétracte ensuite automatiquement grâce à des moyens élastiques (12,17,25,251) situés entre le corps (10) et un bout de piston (201), et, ce faisant, fait rentrer le support dans le corps (10). Une collerette (13) et des rangées d'encoches latérales (14) à l'intérieur du corps (10) permettent de contrôler le piston (201) et de le bloquer à l'intérieur lorsqu'il se rétracte automatiquement. Le piston (20) comprend une partie cassable (24) adjacente au bout de piston (201), qui permet à la tige (23) de se séparer et d'isoler de la sorte le support rétracté (30) à l'intérieur du corps (10) lorsque l'utilisateur essaie de retirer le support rétracté (30), une fonction permettant de libérer le piston (20) des encoches latérales (14). Le dispositif de pénétration comprend une entaille cassable (28C) qui permet au dispositif de pénétration (28) de se rompre en laissant une partie (282) qui maintient l'aiguille (33) enfermée à l'intérieur du support (30) lorsque l'utilisateur essaie de retirer le support rétracté (30) via le conduit (16).
PCT/IB1998/000950 1997-06-24 1998-06-22 Syringue automatiquement retractable non reutilisable WO1998058694A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU76695/98A AU7669598A (en) 1997-06-24 1998-06-22 An automatic retracted non-reusable syringe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG9702131 1997-06-24
SG9702131-5 1997-06-24

Publications (1)

Publication Number Publication Date
WO1998058694A1 true WO1998058694A1 (fr) 1998-12-30

Family

ID=20429675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/000950 WO1998058694A1 (fr) 1997-06-24 1998-06-22 Syringue automatiquement retractable non reutilisable

Country Status (2)

Country Link
AU (1) AU7669598A (fr)
WO (1) WO1998058694A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001064272A1 (fr) * 2000-02-28 2001-09-07 Jun Piao Teng Seringue non reutilisable retractable
WO2002102442A1 (fr) * 2001-06-14 2002-12-27 Occupational & Medical Innovations Ltd Assemblage d'aiguille retractable pour catheter utilisant un element de retraction d'aiguille en elastomere
WO2004033007A1 (fr) * 2002-10-08 2004-04-22 Jun Piao Teng Seringue non reutilisable, retractable, pour usages medicaux multiples
AU2002304994B2 (en) * 2001-06-14 2006-04-13 Occupational & Medical Innovations Ltd A retractable needle assembly for a catheter and which uses an elastomeric member to retract the needle
EP1385561A4 (fr) * 2001-02-28 2006-05-10 Futura Medical Technologies Inc Support d'aiguille de phlebotomie a gaine de surete
US7405198B2 (en) 2003-11-24 2008-07-29 Neose Technologies, Inc. Glycopegylated erythropoietin
US8225787B2 (en) 2007-08-31 2012-07-24 Wet Nose Technologies, Llc Adjustable pressure device and system thereof
US8235042B2 (en) 2007-08-31 2012-08-07 Wet Nose Technologies, Llc Exhalatory pressure device and system thereof
US8783247B2 (en) 2009-02-04 2014-07-22 Wet Nose Technologies, Llc. Pressure release systems, apparatus and methods
US9427504B2 (en) 2007-09-01 2016-08-30 Wet Nose Technologies, Llc Medical apparatus for suction and combination irrigation and suction
CN112497839A (zh) * 2020-11-17 2021-03-16 萍乡市时代工艺包装有限公司 一种包装盒生产用自动打胶机及控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0347742A1 (fr) * 1988-06-23 1989-12-27 Aldo Venturini Seringue de sécurité à usage unique
IT1227228B (it) * 1988-09-28 1991-03-27 Demetrio Federico Siringa di sicurezza a stantuffo che non permette il contatto con l'ago prima e dopo l'uso e il riutilizzo dello strumento per piu'di una volta
US5085640A (en) * 1990-04-06 1992-02-04 Gibbs Andrew H Non-reusable medical needle apparatus
WO1993025257A1 (fr) * 1992-06-15 1993-12-23 Adams Robert D Seringue a aiguille protegee
US5344403A (en) 1993-06-09 1994-09-06 Rahnfong Lee Simple retractable safety syringe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0347742A1 (fr) * 1988-06-23 1989-12-27 Aldo Venturini Seringue de sécurité à usage unique
IT1227228B (it) * 1988-09-28 1991-03-27 Demetrio Federico Siringa di sicurezza a stantuffo che non permette il contatto con l'ago prima e dopo l'uso e il riutilizzo dello strumento per piu'di una volta
US5085640A (en) * 1990-04-06 1992-02-04 Gibbs Andrew H Non-reusable medical needle apparatus
WO1993025257A1 (fr) * 1992-06-15 1993-12-23 Adams Robert D Seringue a aiguille protegee
US5344403A (en) 1993-06-09 1994-09-06 Rahnfong Lee Simple retractable safety syringe

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001064272A1 (fr) * 2000-02-28 2001-09-07 Jun Piao Teng Seringue non reutilisable retractable
EP1385561A4 (fr) * 2001-02-28 2006-05-10 Futura Medical Technologies Inc Support d'aiguille de phlebotomie a gaine de surete
WO2002102442A1 (fr) * 2001-06-14 2002-12-27 Occupational & Medical Innovations Ltd Assemblage d'aiguille retractable pour catheter utilisant un element de retraction d'aiguille en elastomere
AU2002304994B2 (en) * 2001-06-14 2006-04-13 Occupational & Medical Innovations Ltd A retractable needle assembly for a catheter and which uses an elastomeric member to retract the needle
WO2004033007A1 (fr) * 2002-10-08 2004-04-22 Jun Piao Teng Seringue non reutilisable, retractable, pour usages medicaux multiples
US7405198B2 (en) 2003-11-24 2008-07-29 Neose Technologies, Inc. Glycopegylated erythropoietin
US8225787B2 (en) 2007-08-31 2012-07-24 Wet Nose Technologies, Llc Adjustable pressure device and system thereof
US8235042B2 (en) 2007-08-31 2012-08-07 Wet Nose Technologies, Llc Exhalatory pressure device and system thereof
US9427504B2 (en) 2007-09-01 2016-08-30 Wet Nose Technologies, Llc Medical apparatus for suction and combination irrigation and suction
US8783247B2 (en) 2009-02-04 2014-07-22 Wet Nose Technologies, Llc. Pressure release systems, apparatus and methods
CN112497839A (zh) * 2020-11-17 2021-03-16 萍乡市时代工艺包装有限公司 一种包装盒生产用自动打胶机及控制方法
CN112497839B (zh) * 2020-11-17 2022-09-23 萍乡市时代工艺包装有限公司 一种包装盒生产用自动打胶机及控制方法

Also Published As

Publication number Publication date
AU7669598A (en) 1999-01-04

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