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:
May. 27, 2014
Filed:
May. 19, 2011
Anil K. Nalagatla, Mason, OH (US);
David A. Deupree, Mason, OH (US);
Anil K. Nalagatla, Mason, OH (US);
David A. Deupree, Mason, OH (US);
Ethicon Endo-Surgery, Inc., Cincinnati, OH (US);
Abstract
A circular stapling instrument is provided which includes a reciprocating drive shaft and a firing bar. The reciprocating drive shaft has a first engagement member at a tip of the reciprocating drive shaft and a threaded adjustment member at a base of the reciprocating drive shaft. The firing bar is movably connected at a first end with a firing trigger and movably connected at a second end with a stapling head assembly through a second engagement member. The firing bar forms a first engagement surface which faces a respective second engagement surface formed on the reciprocating drive shaft. The circular stapling instrument also includes a frictional reducing member located in between the first and second engagement surfaces in order to reduce friction between the reciprocating drive shaft and the firing bar.