Instrument for severing tissue with HF current
US6325801A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Dec 4, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0813
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
What is described here is an instrument for severing tissue, comprising an elongate instrument body adapted to be introduced into the human or animal body, an HF electrode array provided on the instrument body, to which an HF current may be applied, and an aspirator or vacuum means. In accordance with the invention the instrument body is provided with an aspirator element at a region coming into contact with the tissue, to which aspirator element a negative pressure is applied by means of the suction means in such a way that tissue is aspirated against the instrument body, and that at least one part of the electrode array is adapted for movement in parallel with the aspirator element such that the tissue aspirated against the instrument body will be removed between the aspirator element and the moved part of the electrode array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.