System and method for assessing transmurality of ablation lesions

• US 20040138656A1
• Filed: 01/06/2004
• Published: 07/15/2004
• Est. Priority Date: 04/27/2000
• Status: Abandoned Application

• Current Assignee: David Francischelli, James R. Keogh, Scott E. Jahns
• Original Assignee: David Francischelli, James R. Keogh, Scott E. Jahns
• Inventors: Keogh, James R., Jahns, Scott E., Francischelli, David E.
• Application Number:
  US10/752,135
• Publication Number:
  US 20040138656A1
• Time in Patent Office: Days
• US Class Current: 606/34
• CPC Class Codes: A61B 18/02 by cooling, e.g. cryogenic techniques devices for cooling specific reflex points of the body within cell-life limits A61H39/06
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 18/1482 having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/00088 using thermistors
• CPC Class Codes: A61B 2017/00092 using thermocouples
• CPC Class Codes: A61B 2017/00101 using an array of thermosensors
• CPC Class Codes: A61B 2017/00128 related to intensity or progress of surgical action
• CPC Class Codes: A61B 2017/00203 with speech control or speech recognition
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2018/00011 with fluids
• CPC Class Codes: A61B 2018/00029 open
• CPC Class Codes: A61B 2018/0016 Energy applicators arranged in a two- or three dimensional array
• CPC Class Codes: A61B 2018/00291 using suction
• CPC Class Codes: A61B 2018/00351 Heart
• CPC Class Codes: A61B 2018/00357 Endocardium
• CPC Class Codes: A61B 2018/00363 Epicardium
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00642 : with feedback, i.e. closed loop control
• CPC Class Codes: A61B 2018/00702 : Power or energy
• CPC Class Codes: A61B 2018/00738 : Depth, e.g. depth of ablation
• CPC Class Codes: A61B 2018/00761 : Duration
• CPC Class Codes: A61B 2018/00791 : Temperature
• CPC Class Codes: A61B 2018/00797 : measured by multiple temperature sensors
• CPC Class Codes: A61B 2018/00815 : measured by a thermistor
• CPC Class Codes: A61B 2018/00821 : measured by a thermocouple
• CPC Class Codes: A61B 2018/0091 : Handpieces of the surgical instrument or device
• CPC Class Codes: A61B 2018/0262 : using a circulating cryogenic fluid
• CPC Class Codes: A61B 5/015 : By temperature mapping of body part
• CPC Class Codes: A61B 5/411 : Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance

Abstract

A system for monitoring temperature generated by an ablation apparatus on organic tissue is provided. The system comprises a an ablation apparatus operatively adapted to ablate a first side of the tissue, a temperature-sensing pad operatively adapted to sense temperature along a second side of the tissue and an output device in communication with the pad adapted to indicate the temperature of the tissue.

Claims

1. A system for assessing transmurality of an ablation in a tissue comprising:

an ablation apparatus operatively adapted to ablate a first side of the tissue;

a temperature-sensing pad operatively adapted to sense temperature along a second side of the tissue; and

an output device in communication with the pad, the output device operatively adapted to indicate the temperature of the tissue.

2. The system of claim 1 wherein the pad comprises temperature-sensing elements incorporated therein.

3. The system of claim 1 wherein the temperature of the tissue indicated by the output device corresponds to transmurality of the lesion.

4. The system of claim 2 wherein the temperature-sensing elements are arranged in a grid pattern.

5. The system of claim 4 wherein the output device displays a representation of the grid pattern.

6. The system of claim 1 wherein the output device includes a processor for processing a signal received from the temperature-sensing pad.

7. The system of claim 1 wherein the output device includes an amplifier for amplifying a signal received from the temperature-sensing pad.

8. The system of claim 2 wherein the temperature-sensing elements are thermocouples.

9. The system of claim 2 wherein the temperature-sensing elements are thermisters.

10. The system of claim 2 wherein the temperature-sensing elements are temperature-sensing liquid crystals.

11. The system of claim 2 wherein the temperature-sensing elements are temperature-sensing chemicals.

12. The system of claim 2 wherein the temperature-sensing elements are operatively adapted to be located within the tissue.

13. The system of claim 1 wherein the pad is mounted on a glove.

14. The system of claim 1 wherein the pad is formed as a portion of a glove.

15. The system of claim 1 wherein the pad is operatively adapted to be fitted over a finger.

16. The system of claim 1 wherein the pad further comprises a conductive element incorporated therein.

17. The system of claim 1 wherein the output device comprises a visual display on a monitor.

18. The system of claim 1 wherein the output device comprises a visual display on the pad.