Method for performing intraurethral radio-frequency urethral enlargement
US6440127B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 11, 1998 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Feb 11, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Relief of urethral obstruction is achieved by heat ablation of prostatic tissue by an ablation electrode passed within the urethra to a position in the prostate near the point of urethral obstruction. The electrode is coupled to a high frequency power supply to ablatively heat the urethra and the prostatic tissue near the urethra. Image guidance of the electrode placement is monitored by an imaging device. The temperature of the tissue is sensed at the electrode to control the high frequency heating energy and ablation process. The electrode has a blunt tip to help prevent piercing of the wall of the urethra during insertion of the electrode into the urethra through the penis and the positioning of the electrode tip near to the point of urethral obstruction. Several forms of electrodes, apparatus, and methods accommodate the specific objectives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.