Deep knowledge on 
 small-molecule drugs and 
 the 100,000 global patents 
 covering them 

Flexible Flat-Rate Plans

Flat-rate pricing for predictable budgeting

Short-term plans for project- or client-based billing

► Plans and Pricing

How are People Using DrugPatentWatch?

DrugPatentWatch Ultimate Plan Preview

Details for Patent: 5,891,086

« Back to Dashboard

Summary for Patent: 5,891,086

Title: Needle-less injector
Abstract:In a needle-less injector combining an actuator and a medicament cartridge, the actuator includes a housing with a forward portion to which the cartridge is connected. An impact member is mounted within the housing inward of the forward portion so as to be movable toward the forward portion, where it may strike components of the cartridge to effect expulsion of a dose of medicament. A chamber is provided within the housing and is pre-filled with a pressurized gas which is in communication with and exerts a constant force on the impact member, tending to urge it towards the forward portion. Movement of the impact member is prevented by a latch which normally engages the impact member and prevents its forward movement, but is actuable to be moved out of such engagement, permitting movement of the impact member, the cartridge includes a piston which is mounted in the body of the cartridge with an interference fit and is made of a material which is substantially non-resilient when subjected to a slowly applied force, but is highly resilient when subjected to a rapidly applied force.
Inventor(s): Weston; Terence Edward (Suffolk, GB)
Assignee: Weston Medical Limited (Suffolk, GB)
Application Number:08/591,585
Patent Claim Types:
see list of patent claims
Dosage form; Use;
Patent Metrics:
Field: Medical technology
Back Citations: 54
Forward Citations: 15
Patent PDF download available with subscription

No matches for this query

Foreign Priority and PCT Information for Patent: 5,891,086

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9315915Jul 31, 1993
United Kingdom9319981Sep 28, 1993
PCT Information
PCT FiledJuly 27, 1994PCT Application Number:PCT/GB94/01608
PCT Publication Date:February 09, 1995PCT Publication Number: WO95/03844

International Patent Family for Patent: 5,891,086

Country Document Number Publication Date Supplementary Protection Certificate SPC Country SPC Expiration
Japan3487856Jan 19, 2004
European Patent Office1020200Jul 19, 2000
Hong Kong1010697Mar 23, 2001
This preview shows a limited data set
Subscribe for full access, or try a Trial

Export unavailable in trial.
Subscribe for complete access.

For more information try a trial or see the database preview and plan comparison

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors.

Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided information. There is no warranty that the information contained herein is error free. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

Copyright 2002-2016 thinkBiotech LLC
ISSN: 2162-2639

Preferred citation:

Friedman, Y. Location of pharmaceutical innovation: 2000–2009 Nature Reviews Drug Discovery 9, 835–836 (2010).

Connect with Social Media:

Follow DrugPatentWatch on Twitter
Connect with DrugPatentWatch on Linkedin
Drug Patents on LinkedIn