Resectoscope apparatus
US4994062A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M3/0279
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The resectoscope apparatus of this invention comprises an elongate hollow sheath to be inserted into a body cavity, an electrode inserted through the sheath and resecting or coagulating tissues within the body cavity by using a high frequency current, an endoscope insertable part inserted through the sheath and having an optical system making the body cavity interior observable and an operating part having a guide tube part through which the endoscope insertable part is inserted and a sheath connecting part connected to the base end part of the sheath and making the electrode operatable from outside the body. At least one of the guide tube part and sheath connecting part is formed of an electric insulating material for electric insulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.