Reusable endoscopic surgical instrument
US5746759A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Sep 10, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0626
- WIPO fieldMedical technology
- WIPO sectorInstruments
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 th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.