Ultrasonically enhanced RF ablation catheter
US4936281A · kind A · utility
891Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1989 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Apr 13, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical angioplasty catheter with ultrasonic enhancement is described. It comprises an elongated, flexible plastic tubular body having located at its distal tip an electrode structure for effecting rf cutting along with a transducer for ultrasonically driving the rf cutting electrodes and the support thereof. The electronics module for driving the cutting electrodes and the ultrasonic transducer also includes means for receiving echo signals picked up by the transducer whereby Doppler flow readings and ultrasound imaging of the blood vessel being worked upon can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.