Title:
RADIOFREQUENCY SYSTEM FOR ABLATION OF CARDIAC TISSUE
Document Type and Number:
WIPO Patent Application WO1993020770
Kind Code:
A3
Abstract:
A system for delivering radiofrequency energy to ablate cardiac tissue comprises a radiofrequency generator and an intravascular catheter. The catheter includes both a radiofrequency ablation electrode and a temperature sensor within its distal end. Delivery of power to the ablation electrode may then be controlled based on electrode temperature using a cascade control system wherein analog temperature controller adjusts the set point to a secondary power controller. Alternatively, power delivered to the patient can be controlled directly based on a power set point. Reuse of the catheter is prevented by a fuse within the catheter which is sensed prier to power delivery and broken prior to disconnection of the catheter.
More Like This:
| JPS51122984 | INCISING DEVICE AND METHOD THEREOF |
| WO/2005/060848 | HIGH-FREQUENCY HEATING BALLOON CATHETER |
| JP2003508110 | INDUSTRIAL APPLICABILITY: Electrosurgical cutting instrument |
Inventors:
STRUL BRUNO (US)
Application Number:
PCT/US1993/003288
Publication Date:
December 23, 1993
Filing Date:
April 08, 1993
Export Citation:
Assignee:
CARDIORHYTHM (US)
International Classes:
A61B18/12; A61B18/14; A61B17/00; A61B18/00; A61B19/00; (IPC1-7): A61B17/39
Domestic Patent References:
| WO1991016859A1 | 1991-11-14 | |||
| WO1991003208A1 | 1991-03-21 |
Foreign References:
| GB2164473A | 1986-03-19 | |||
| US4960134A | 1990-10-02 | |||
| US4878493A | 1989-11-07 | |||
| EP0368532A2 | 1990-05-16 | |||
| US4966597A | 1990-10-30 | |||
| EP0136855A2 | 1985-04-10 | |||
| US4973945A | 1990-11-27 | |||
| EP0052193A1 | 1982-05-26 |
Download PDF: