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:
Oct. 03, 1995
Filed:
Sep. 22, 1993
Diego Fontayne, Norwalk, CT (US);
John C Robertson, Bloomfield, CT (US);
Timothy O Van Leeuwen, Brookfield, CT (US);
Thomas A Pelletier, Wallingford, CT (US);
Stephen W Gerry, Bethel, CT (US);
United States Surgical Corporation, Norwalk, CT (US);
Abstract
A novel surgical instrument suitable for insertion and assembly of surgical fasteners, such as multi-ring compression devices, for circular anastomosis of tubular or hollow organ tissue sections, including a body having means to support and align the rings, means for clamping the rings around the free ends of the tissue sections, means for coring away excess clamped tissue and the centers of the rings, separate means for releasing the clamped rings from the instrument and dwell means to delay releasing the rings until after the coring operation is complete. The dwell means consists of an external cup containing separate and coaxial elements for the coring means and the releasing means which are provided with a series of recesses and a plurality of shifter keys to separate the operation of coring from the separate operation of releasing the assembled multi-ring compression device from the instrument. The instrument may additionally include means for detaching a portion of the support means to facilitate installation and alignment, a safety to ensure safe operation and various knife blade profiles. Additionally, the surgical instrument may be provided with a longitudinal bore extending throughout the length of the instrument for receipt of accessory instruments therethrough. Further, lockout means may be provided to block the coring means until the rings have been clamped around the tissue sections.