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:
Dec. 14, 2010
Filed:
Sep. 05, 2007
Christian Gratwohl, Aarau, CH;
Martin Wymann, Liebefeld, CH;
Christian Gratwohl, Aarau, CH;
Martin Wymann, Liebefeld, CH;
TecPharma Licensing AG, Burgdorf, CH;
Abstract
A needle unit for an injection device comprising an injection needle and a needle holder, the needle unit coupled to the injection device and comprising: a needle protector comprising a guide which guides the needle protector such that it can move axially, at least one spring element applying a spring force to the needle protector thus holding the protector in a first position, and a lock which, after an injection, locks the needle protector in the first position against moving further axially, wherein the lock is deformable by force and assumes its original shape after said force is removed, and wherein the needle protector affects the lock transversely with respect to the axial movement direction during an axial movement of the protector which accompanies an injection and deflects the lock into a locking position when the needle protector is moved to the first position.