EP0735907A1 - Dispositif a fonctionnement fiable pour effectuer des injections repetees, comportant un bras lateral et utilisant un injecteur sans aiguille - Google Patents

Dispositif a fonctionnement fiable pour effectuer des injections repetees, comportant un bras lateral et utilisant un injecteur sans aiguille

Info

Publication number
EP0735907A1
EP0735907A1 EP92919778A EP92919778A EP0735907A1 EP 0735907 A1 EP0735907 A1 EP 0735907A1 EP 92919778 A EP92919778 A EP 92919778A EP 92919778 A EP92919778 A EP 92919778A EP 0735907 A1 EP0735907 A1 EP 0735907A1
Authority
EP
European Patent Office
Prior art keywords
sidearm
extension
main body
injection
hole
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.)
Withdrawn
Application number
EP92919778A
Other languages
German (de)
English (en)
Other versions
EP0735907A4 (fr
Inventor
Earl Hanson
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.)
MAXIMWELL INTERNATIONAL CO Ltd
Original Assignee
MAXIMWELL INTERNATIONAL CO Ltd
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 MAXIMWELL INTERNATIONAL CO Ltd filed Critical MAXIMWELL INTERNATIONAL CO Ltd
Priority claimed from HU9500525A external-priority patent/HUT73523A/hu
Publication of EP0735907A4 publication Critical patent/EP0735907A4/fr
Publication of EP0735907A1 publication Critical patent/EP0735907A1/fr
Withdrawn legal-status Critical Current

Links

Definitions

  • the present invention relates to a safely operated multishot sidearm injection site using a needleless injector which is equipped with a main body and an extension sidearm and a cylindrical silicone valve body which is laterally disposed inside the main body and in abutment with the extension sidearm so as to seal a tubular injection tube disposed through the center of a microaperture valve stem disposed in the extension sidearm into which a needleless syringe is inserted with the valve stem protruding into the inside of the male member of a standard tapered Luer fitting of injection syringes.
  • the principal characteristic of the present invention is the capability of prevention of embolisms as a result of air induction into the infusion delivery tube.
  • a typical injection needle is connected to a dropper by way of a flexible rubber tube 10; and another improved Y shaped injection site is illustrated in Fig. 2 which is comprised of a main tube 11 and a branch tube 12 disposed at an angle at the side of and in-communication with the main tube 11.
  • the branch tube 12 is sealed by a rubber cork 13.
  • the main tube 11 is coupled to a delivery tube at each end.
  • a nurse has to hold the injection syringe with a single hand and pierce the pointed needle thereof into the rubber tube 10 or the rubber cork 13 held by another hand; it is rather possible that the needle can accidently hurt the hand of the nurse, making the nurse easily affected when the wound is in contact with the blood of a patient who suffers from AIDS which is contagious to people via blood or human mucous membrane. Therefore, the prior art injection sites are not safe enough to operate especially in a time when AIDS is threatening the innocent people by accidental contacts.
  • the primary object of the present invention is to provide a safely operated multishot injection site using a needleless injector to infuse medical solution into the delivery tube so that no accidents caused by pointed needles can happen.
  • Another object of the present invention is to provide a safely operated multishot injection site using a needleless injector which is able to infuse medical solution into the injection delivery tube via a valve controlled injection tube so that no piercing holes will produce on the injection site and embolisms caused by the air induction into the infusion delivery tube can be prevented.
  • Fig. 1 is a diagram showing a prior art injection needle for use in connection to a general dropper
  • Fig. 2 is a sectional view showing a prior art Y shaped injection site
  • Fig. 3 is a perspective diagram showing the exploded components of the present invention.
  • Fig. 4 is a perspective diagram showing the assembly thereof
  • Fig. 5 is a sectional diagram showing the structure of the present invention.
  • Fig. 6 is a diagram showing the application of the present invention to a dropper system
  • Fig. 7 is a sectional diagram showing the embodiment of • the present invention.
  • Fig. 8 is a sectional diagram showing another embodiment of the present invention.
  • the safely operated multishot injection site of the present invention is comprised of a main body 21, an extension sidearm 22 and a valve body 23 wherein the injection site is made of clear engineering thermoplastic of sufficient clarity and strength to provide visual observations of internal fluid flow and the valve body 23 is made of flexible silicone.
  • the main body 21 is made in a tubular form with a tube 211 disposed therein and a laterally oriented through hole 212 in communication with the tube 211 of the main body 21 is integrally formed thereon for the insertion of the extension sidearm 22 into the main body 21.
  • the extension sidearm 22 is in a tubular form and is provided with a closed end with a tapered inner wall 221 defined therein.
  • An inward protruded valve stem 222 is disposed at the center of the closed end of the sidearm 22 and is provided with a tubular injection hole 223 through which the medical solution is infused into the injection delivery tube.
  • a pair of lugs 224 are disposed at the periphery of the opposite end of the closed end.
  • the valve body 23 is made in a cylindrical form and has . an outer diameter smaller than the smallest diameter of the through hole 211 so that when the valve body 23 is laterally disposed in the through hole 211, there is still room for the passage of medical solution.
  • the extension * sidearm 22 is inserted into the laterally oriented through hole 212 of the main body 21 after the cylindrical valve body 23 is laterally located in the main body 21; and the closed end of the extension sidearm 22 is in abutment against the valve body 23 with the tubular injection through hole 223 sealed thereby.
  • the present invention is connected to a dropper by way of closure piercing device 30, a filter device 31 is coupled to a volume controller 32 and the delivery tube 33 is extended therefrom; and the bottom end of the delivery tube 33 is connected to the present site 20, and another delivery tube 33 is coupled to an injection needle at the end of the dropper system.
  • a needleless syringe 40 taking the solution from a medical container is used to infuse the same into the dropper system.
  • the protruded end 41 of the syringe 40 is inserted into tapered through hole 221 of the extension sidearm 22 with the valve stem 222 inserted into the hole of the protruded end 41.
  • the nursing personnel are free from the risk of being fatally affected as a result of hurting by needles.
  • the injection syringe can be firmly retained in place due to thy additional threads on the protruded end of the syringe which is attached to the lugs of the extension sidearm.

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Un dispositif pour effectuer des injections répétées et utilisant un injecteur sans aiguille, est constitué d'un corps principal (21), d'un bras latéral d'extension (22) et d'un corps de vanne en silicone (23); le bras latéral d'extension (22) est fixé sur un côté du corps principal (21) et le corps de vanne en silicone (23) est disposé latéralement dans le trou traversant (212) le corps principal (21) en venant buter contre le bras latéral d'extension (22). Lorsque la solution médicale doit être injectée à un patient au moyen du présent dispositif d'injection, une seringue sans aiguille est insérée dans le siège conique (221) du corps d'extension (22) avec la tige de vanne à micro-ouverture (222) venant s'insérer dans l'élément luer mâle de la seringue d'injection utilisée. L'actionnement de la seringue va produire une pression dans l'ouverture d'injection tubulaire (223) qui force le corps de vanne en silicone (23) à s'ouvrir de manière à permettre à la solution médicale injectée d'entrer dans le tube d'administration du corps principal.
EP92919778A 1992-08-18 1992-08-18 Dispositif a fonctionnement fiable pour effectuer des injections repetees, comportant un bras lateral et utilisant un injecteur sans aiguille Withdrawn EP0735907A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
HU9500525A HUT73523A (en) 1992-08-18 1992-08-18 Sefly-operated multishot sidearm injection side using a needleless injector
PCT/US1992/006851 WO1994004218A1 (fr) 1992-08-18 1992-08-18 Dispositif a fonctionnement fiable pour effectuer des injections repetees, comportant un bras lateral et utilisant un injecteur sans aiguille
BR9207158A BR9207158A (pt) 1992-08-18 1992-08-18 Aplicador de injeção de braço lateral para múltiplas injeções de operação segura utilizando um injetor desprovido de agulha
PT101668A PT101668A (pt) 1992-08-18 1995-03-02 Dispositivo de funcionamento fiavel para aplicacao repetida de injeccoes. compreendendo um braco lateral e que utiliza um injector sem agulha
OA60682A OA10171A (en) 1992-08-18 1995-06-30 Safely-operated multishot sidearm injection site using a needleless injector

Publications (2)

Publication Number Publication Date
EP0735907A4 EP0735907A4 (fr) 1996-05-07
EP0735907A1 true EP0735907A1 (fr) 1996-10-09

Family

ID=33314290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92919778A Withdrawn EP0735907A1 (fr) 1992-08-18 1992-08-18 Dispositif a fonctionnement fiable pour effectuer des injections repetees, comportant un bras lateral et utilisant un injecteur sans aiguille

Country Status (6)

Country Link
EP (1) EP0735907A1 (fr)
AU (1) AU2581592A (fr)
BR (1) BR9207158A (fr)
FI (1) FI950781A (fr)
NO (1) NO950624L (fr)
SK (1) SK33295A3 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8528780U1 (de) * 1985-10-09 1985-11-14 B. Braun Melsungen Ag, 3508 Melsungen Injektionsventil
EP0430398A2 (fr) * 1989-11-28 1991-06-05 Imed Corporation Ensemble de soupapes de non-retour pour multiples lignes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8528780U1 (de) * 1985-10-09 1985-11-14 B. Braun Melsungen Ag, 3508 Melsungen Injektionsventil
EP0430398A2 (fr) * 1989-11-28 1991-06-05 Imed Corporation Ensemble de soupapes de non-retour pour multiples lignes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9404218A1 *

Also Published As

Publication number Publication date
NO950624L (no) 1995-04-18
NO950624D0 (no) 1995-02-20
AU2581592A (en) 1994-03-15
FI950781A0 (fi) 1995-02-20
BR9207158A (pt) 1995-12-12
FI950781A (fi) 1995-04-11
SK33295A3 (en) 1995-12-06
EP0735907A4 (fr) 1996-05-07

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