Tissue ablation apparatus and method using ultrasonic imaging
US8133222B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Oct 31, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3784
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A coaxial cable apparatus which transmits radio frequency (RF) energy for the ablation of biological tissues has inner and outer coaxial conductors extending from a proximal portion to a distal portion. An RF antenna is disposed at the distal portion of the cable and transmits RF energy for ablation of a tissue region to be treated. At least one ultrasonic transducer is also disposed at the distal portion of the cable to direct ultrasonic frequency energy to a tissue region. The ultrasonic transducer detects reflected ultrasonic signals from the tissue region and provides a signal output which varies dependent on the density of tissue over the monitored tissue region. The reflected ultrasonic signal can be monitored before, during, and after ablation treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.