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:
Jun. 13, 2017
Filed:
May. 27, 2005
Nigel Harrison, Melbourn, GB;
Nigel Harrison, Melbourn, GB;
Cilag gmBh International, , CH;
Abstract
An injection device () is described. A housing () receives a syringe and includes a return spring () for biasing the syringe from an extended position in which its needle () extends from the housing () to a retracted position in which the it does not. A drive spring () acts on a first drive element () and a second drive element () acts upon the syringe to advance it from its retracted position to its extended position and discharge its contents through the needle. The first drive element () is capable of movement relative to the second () once a nominal decoupling position has been reached. A release mechanism is activated when the first drive element () is further advanced to a nominal release position, to release the syringe () from the action of the drive spring (), whereupon the return spring () restores the syringe () to its retracted position. Decoupling of the drive elements is achieved with a particular form of releasable drive coupling using two pairs of overlying flexible arms (). A particular form of release mechanism that also uses flexible arms () is also envisaged.