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:
Jan. 10, 1989
Filed:
May. 10, 1984
George D Smith, Cincinnati, OH (US);
James D Hughett, Cincinnati, OH (US);
Thomas E Warman, Williamsburg, OH (US);
Ethicon, Inc., Somerville, NJ (US);
Abstract
A surgical stapler includes a moving driver and an anvil moving in the same direction as the driver to pick off a staple from a supply, and to transport it to a forming station. The anvil is there stopped, but the driver continues to move forwardly forming the staple about the anvil. The anvil is locked against retraction until the driver is partially retracted in order to facilitate staple ejection. A drive linkage includes a four-bar linkage and a trigger mounted cam drive for dispersing required input forces over the trigger movement and minimizing force variations and maximum input. Modular features and construction provide use and manufacturing advantages. Methods are included.