CA2247142A1 - Needleless syringe - Google Patents

Needleless syringe

Info

Publication number
CA2247142A1
CA2247142A1 CA 2247142 CA2247142A CA2247142A1 CA 2247142 A1 CA2247142 A1 CA 2247142A1 CA 2247142 CA2247142 CA 2247142 CA 2247142 A CA2247142 A CA 2247142A CA 2247142 A1 CA2247142 A1 CA 2247142A1
Authority
CA
Canada
Prior art keywords
needleless syringe
gas
particles
reflected
silencer
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 2247142
Other languages
French (fr)
Other versions
CA2247142C (en
Inventor
Brian John Bellhouse
Charles David Ogilvy Potter
John Christopher Greenford
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.)
Powderject Research Ltd
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
Priority claimed from GBGB9605690.8A external-priority patent/GB9605690D0/en
Application filed by Individual filed Critical Individual
Publication of CA2247142A1 publication Critical patent/CA2247142A1/en
Application granted granted Critical
Publication of CA2247142C publication Critical patent/CA2247142C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A needleless syringe, in which particles of a therapeutic agent are entrained in a supersonic gas flow, has a nozzle surrounded by a silencer through which gas reflected from the target may be vented to atmosphere through a porous material which acts to retain any particles reflected in the gas.
CA 2247142 1996-03-19 1997-03-17 Needleless syringe Expired - Fee Related CA2247142C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9605690.8 1996-03-19
GBGB9605690.8A GB9605690D0 (en) 1996-03-19 1996-03-19 Particle delivery
PCT/GB1997/000734 WO1997034652A1 (en) 1996-03-19 1997-03-17 Needleless syringe with therapeutic agent particles entrained in supersonic gas flow

Publications (2)

Publication Number Publication Date
CA2247142A1 true CA2247142A1 (en) 1997-09-25
CA2247142C CA2247142C (en) 2007-09-04

Family

ID=29422178

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2247142 Expired - Fee Related CA2247142C (en) 1996-03-19 1997-03-17 Needleless syringe

Country Status (1)

Country Link
CA (1) CA2247142C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2532378B1 (en) 2004-12-01 2016-04-27 AcuShot, Inc. Needle-free injector

Also Published As

Publication number Publication date
CA2247142C (en) 2007-09-04

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150317