Apparatus and method for treatment of benign prostatic hyperplasia
US7765010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2006 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | May 29, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/124
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and a method for treatment of benign prostatic hyperplasia are disclosed. The apparatus includes an applicator piece carrying a set of electrodes shaped and positioned to create a substantial electric field in the volume of hyperplasia and a pulse generator adapted for delivery of electrical pulses above the upper electroporation limit for the neoplastic cells. The amplitude, duration and number of the electrical pulses are generally selected to cause necrosis of a significant fraction of the volume of benign prostatic hyperplasia. The apparatus may include a high frequency system for heating the prostatic tissue and a cooling system for cooling the urethra. The combined action of heating and cooling may increase the temperature of the prostate cells to 45 degrees C. to 55 degrees C., while keeping the urinary tract at a temperature 15 degrees C. to 20 degrees C. This temperature distribution can increase the selectivity of the treatment by increasing susceptibility of the neoplastic cells to the electroporation treatment and decreasing it for the normal urethral tissues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.