The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2004
Filed:
Jan. 31, 2000
Stuart Weekes, Oxford, GB;
Steven Mark Guy Rolfe, Oxon, GB;
Ares-Trading S.A., Vaumarcus, CH;
Abstract
An injection device has a barrel ( ) for housing and guiding a syringe ( ) as it is urged forward to project its needle ( ), while the dose is ejected, and as a return spring ( ) retracts it. A firing mechanism ( ) is connectable to the rear end of the barrel and is re-usable, whereas the barrel ( ) with its spent syringe ( ) is disposable. The connection ( ) has limited freedom of axial movement so that, once made, forward pressure on the firing mechanism ( ) moves the syringe ( ) up to a ready position. A number of barrels ( ) with syringes ( ) can be housed in a common box ( ) with a single firing mechanism ( ), the forward end of each barrel ( ) being screwed to a locator ( ) on the base of the box. The engagement of the firing mechanism ( ) with the rear end of each barrel ( ) is also screw-threaded, but of opposite hand, so that screwing the firing mechanism ( ) on and continuing to turn releases the complete device; and correspondingly the barrel ( ) can be returned and located in the box ( ) while the firing mechanism ( ) is separated from it.