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:
Aug. 10, 2010
Filed:
Dec. 30, 2005
Barry Knight, Surrey, GB;
Stephen Knowles, Beaumont, GB;
Venkitraman R Srinivas, Mumbai, IN;
Ramesh Sesha, New Jersey, NY (US);
Barry Knight, Surrey, GB;
Stephen Knowles, Beaumont, GB;
Venkitraman R Srinivas, Mumbai, IN;
Ramesh Sesha, New Jersey, NY (US);
Wockhardt Ltd., Bandra-Kurla Complex, Bandra East, Mumbai, IN;
Abstract
The present invention provides a delivery device comprising a fluid cartridge holder, housing and a piston drive mechanism that comprises a hollow piston rod and a drive-shaft. The hollow piston rod has an internal thread that mates with the external thread of the drive-shaft, forming a thread connection and being axially restrained in the proximal direction relative to the housing. The drive mechanism is in turn connected to the housing via a one way ratchet such that the piston rod is prevented from moving in the proximal direction.