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. 05, 1998
Filed:
Sep. 10, 1996
John C Meade, Walpole, MA (US);
John C Baccus, Wayland, MA (US);
MicroSurge, Inc., Needham, MA (US);
Abstract
A reusable endoscopic surgical instrument includes a tool assembly and a detachable handle. The tool assembly consists of an outer sleeve to which a surgical jaw assembly such as scissors or graspers is mounted. An inner extension is mounted inside the sleeve and is longitudinally translatable with respect to the sleeve. When the distal end of the extension is in engagement with the jaws of the jaw assembly, translation of the extension causes the jaws to open and close. The extension can be translated out of engagement with the jaws to permit disassembly of the instrument for cleaning and changing jaw assemblies. The tool assembly is retained within the handle assembly. The sleeve is retained within the handle in a longitudinally stationary position with respect to the handle, while the extension is permitted to move longitudinally within the sleeve. Relative rotation between a thumb loop and finger loop on the handle assembly longitudinally translates the extension within the sleeve, and thus opens and closes the jaws. The handle assembly can have a rotatable port which allows the user to select between two instrument configurations. The orientation of the port with respect to the finger loop and thumb loop can be changed without interrupting an operation to allow the user to select a comfortable operating position.