CA2021567A1 - Disposable syringe and injector - Google Patents

Disposable syringe and injector

Info

Publication number
CA2021567A1
CA2021567A1 CA 2021567 CA2021567A CA2021567A1 CA 2021567 A1 CA2021567 A1 CA 2021567A1 CA 2021567 CA2021567 CA 2021567 CA 2021567 A CA2021567 A CA 2021567A CA 2021567 A1 CA2021567 A1 CA 2021567A1
Authority
CA
Canada
Prior art keywords
syringe
orifice
plug
injector
injection
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.)
Granted
Application number
CA 2021567
Other languages
French (fr)
Other versions
CA2021567C (en
Inventor
Istvan Lindmayer
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.)
Idee International R&D Inc
Original Assignee
Idee International R&D Inc
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 Idee International R&D Inc filed Critical Idee International R&D Inc
Priority to CA 2021567 priority Critical patent/CA2021567C/en
Publication of CA2021567A1 publication Critical patent/CA2021567A1/en
Application granted granted Critical
Publication of CA2021567C publication Critical patent/CA2021567C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

In general, syringes for needleless injectors must be reasonably accurately dimensioned, and the barrel of the injector must be formed of metal in order to prevent expansion of the syringe under pressure. A simple alternative is a syringe including an elongated tubular body with one open end and a closed end containing an injection orifice, and a plug slidable in the body with a prong at one end of the plug extending. towards the orifice end of the body, the prong carrying an O-ring and an annular seal which prevents squeezing of the O-ring between the body of the syringe and the plug under injection pressures. An alternative form of syringe includes a pair of valves, one of which normally closes the injection orifice, and the other of which is mounted on the plug. The orifice valve opens under injection pressure to permit the passage of medicine from the syringe body through the orifice, and the other valve opens when the plug, which contains a longitudinally extending passage, is moved away from the orifice end of the syringe body. With such syringes, the body of the injector can be manufactured from plastic, as can the barrel for receiving the syringe.
Moreover parts no longer need to be particularly accurately dimensioned.
CA 2021567 1990-07-19 1990-07-19 Disposable syringe and injector Expired - Lifetime CA2021567C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2021567 CA2021567C (en) 1990-07-19 1990-07-19 Disposable syringe and injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2021567 CA2021567C (en) 1990-07-19 1990-07-19 Disposable syringe and injector

Publications (2)

Publication Number Publication Date
CA2021567A1 true CA2021567A1 (en) 1992-01-20
CA2021567C CA2021567C (en) 2002-02-05

Family

ID=4145526

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2021567 Expired - Lifetime CA2021567C (en) 1990-07-19 1990-07-19 Disposable syringe and injector

Country Status (1)

Country Link
CA (1) CA2021567C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2532378T3 (en) 2004-12-01 2016-11-30 Needle-free injector

Also Published As

Publication number Publication date
CA2021567C (en) 2002-02-05

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