Radio-frequency generator for powering an ablation device
First Claim
1. A system for ablating tissue comprising:
- an RF ablation device, wherein the RF ablation device is configured to transition from a compressed condition to a relaxed condition, and wherein the RF ablation device is configured to automatically transmit dimensional data to the RF generator; and
an RF generator coupled to the RF ablation device, wherein the RF generator is configured to receive the dimensional data corresponding to tissue to be ablated, and wherein the RF generator is configured to automatically select an RF power based on the dimensional data, and wherein the RF generator is configured to provide an RF signal at the selected RF power to the RF ablation device.
11 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for use in performing ablation of organs and other tissues includes a radio frequency generator which provides a radio frequency signal to ablation electrodes. The power level of the radio frequency signal is determined based on the subject area of ablation. The radio frequency signal is coupled with the ablation electrodes through a transformation circuit. The transformation circuit includes a high impedance transformation circuit and a low impedance transformation circuit. The high or low impedance transformation circuit is selected based on the impedance of the ablation electrodes in contact with the subject tissue. Vacuum level, impedance level, resistance level, and time are measured during ablation. If these parameters exceed determinable limits the ablation procedure is terminated.
264 Citations
19 Claims
-
1. A system for ablating tissue comprising:
-
an RF ablation device, wherein the RF ablation device is configured to transition from a compressed condition to a relaxed condition, and wherein the RF ablation device is configured to automatically transmit dimensional data to the RF generator; and an RF generator coupled to the RF ablation device, wherein the RF generator is configured to receive the dimensional data corresponding to tissue to be ablated, and wherein the RF generator is configured to automatically select an RF power based on the dimensional data, and wherein the RF generator is configured to provide an RF signal at the selected RF power to the RF ablation device. - View Dependent Claims (2, 3)
-
-
4. A system for ablating tissue comprising:
-
an RF ablation device, wherein the RF ablation device includes an applicator head comprising a plurality of flexures, wherein the RF ablation device is configured to cause the plurality of flexures to transition from a compressed condition to a relaxed condition, and wherein the RF ablation device is configured to determine the dimensional data by transducing a distance of separation of two of the flexures when in the relaxed condition; an RF generator coupled to the RF ablation device, wherein the RF generator is configured to receive the dimensional data corresponding to tissue to be ablated, and wherein the RF generator is configured to automatically select an RF power based on the dimensional data, and wherein the RF generator is configured to provide an RF signal at the selected RF power to the RF ablation device.
-
-
5. A system for ablating tissue comprising:
-
an RF ablation device, wherein the RF ablation device includes an expandable applicator head configured to be positioned in a uterine cavity, and wherein the RF ablation device is configured to cause the applicator head to transition from a compressed condition to a relaxed condition, and wherein the RF ablation device is configured to determine data related to the uterine cavity based on a degree of expansion of the applicator head when in the relaxed condition; and an RF generator coupled to the RF ablation device, wherein the RF generator is configured to receive the data corresponding to tissue to be ablated, and wherein the RF generator is configured to automatically select an RF power based on the data, and wherein the RF generator is configured to provide an RF signal at the selected RF power to the RF ablation device. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification