IP Library Granted Patent US 9,872,720
Granted Patent B2
US 9,872,720 · App. 14/672,021 · Granted Jan 23, 2018

Multi-pole synchronous pulmonary artery radiofrequency ablation catheter

Inventor: Shaoliang Chen (Nanjing, CN)
Assignee: PULNOVO MEDICAL (WUXI) CO., LTD.
A61B18/1206A61B17/320068A61B18/00A61B18/1492A61M25/0136A61M25/0147A61N1/06A61B2017/00084A61B2017/00734A61B2017/00867A61B2018/00029A61B2018/00214A61B2018/00345A61B2018/00357A61B2018/00375A61B2018/00404A61B2018/00434A61B2018/00577A61B2018/00613A61B2018/00642A61B2018/00702A61B2018/00791A61B2018/00797A61B2018/00916A61B2018/00988A61B2018/122A61B2018/124A61B2018/144A61B2018/1407A61B2018/1467A61B2218/002
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Quick Facts
Patent No.
US 9,872,720
App. No.
14/672,021
Granted
Jan 23, 2018
Kind
B2
Abstract

Disclosed herein is a controller for controlling ablation of a target tissue of a patient with an ablation device comprising at least one electrode and at least one sensor. The controller typically comprises a storage medium and one or more computing devices operably coupled with the storage medium. The storage medium can comprise patient image data and the one or more computing devices are configured to direct power to the at least one electrode.

Claims (37)

1. A controller for controlling ablation of a target tissue of a patient with an ablation device comprising at least one electrode and at least one sensor, the controller comprising:

a storage medium having stored thereon patient image data including a distal end of a main pulmonary artery, a proximal end of a left pulmonary artery, and a proximal end of a right pulmonary artery; and

one or more computing devices operably coupled with the storage medium and the ablation device, the one or more computing devices configured to execute instructions comprising:

(i) directing power to the at least one electrode positioned against a target tissue at a power level sufficient for ablating the target tissue, said target tissue being identified based on the patient image data and further comprising a left lateral side of the distal end of the main pulmonary artery,

(ii) determining, based on sensor data received from the at least one sensor, an amount of time the ablation is to be performed at a location of the target tissue, wherein the sensor data comprises one or more characteristics of the target tissue, and

(iii) regulating the directed power to the at least one electrode or the amount of time the ablation is performed at the location of the target tissue such that the target tissue is ablated to affect a reduction in mean pulmonary artery pressure of the patient.

2. The controller of claim 1 , wherein the one or more computing devices are configured to execute the instructions comprising directing the power to the at least one electrode positioned against the target tissue comprising a left lateral apex of the distal end of the main pulmonary artery.

3. The controller of claim 1 , wherein the at least one electrode comprises a first electrode and a second electrode, and wherein the one or more computing devices are configured to execute the instructions comprising directing the power to the first electrode positioned against a first portion of the target tissue comprising a left lateral apex of the distal end of the main pulmonary artery, and directing the power to the second electrode positioned against a second portion of the target tissue comprising an anterior side or a posterior side of the left lateral apex of the distal end of the main pulmonary artery.

4. The controller of claim 3 , wherein the at least one sensor comprises a first sensor and a second sensor, the first sensor connected with the first electrode and the second sensor connected with the second electrode, and wherein the one or more computing devices are configured to execute the instructions comprising (iv) determining, based on the sensor data received from the first sensor, the amount of time ablation is to be performed at the location of the first portion of the target tissue, and (v) determining, based on the sensor data received from the second sensor, the amount of time ablation is to be performed at the location of the second portion of the target tissue.

5. The controller of claim 4 , further comprising a display operably coupled with the one or more computing devices, wherein the one or more computing devices are further configured to execute the instructions which further comprise displaying on the display the sensor data received from the first sensor while directing the power to the first electrode, and the sensor data received from the second sensor while directing the power to the second electrode.

6. The controller of claim 5 , wherein the sensor data received from the second sensor is configured to be displayed on the display after the one or more computing devices stop directing the power to the first electrode.

7. The controller of claim 1 , further comprising a battery operably coupled with the one or more computing devices and configured to store the power at the power level sufficient for ablating the target tissue, wherein the one or more computing devices are configured to execute the instructions comprising directing the power to the at least one electrode from the battery.

8. The controller of claim 7 , wherein the at least one electrode comprises a first electrode and a second electrode, and, wherein the one or more computing devices are configured to execute the instructions comprising:

directing the power from the battery to the first electrode positioned against a first portion of the target tissue comprising a left lateral apex of the distal end of the main pulmonary artery, and

directing the power from the battery to the second electrode positioned against a second portion of the target tissue comprising an anterior side or a posterior side of the left lateral apex of the distal end of the main pulmonary artery.

9. The controller of claim 7 , wherein the battery is configured to be charged, and wherein the one or more, computing devices are configured to execute instructions comprising directing the power from the battery to the second electrode after the battery has finished charging.

10. The controller of claim 7 , wherein the battery is configured to be charged, and wherein the one or more computing devices are configured to execute the instructions comprising directing the power from the battery to the at least one electrode after the battery has finished charging.

11. The controller of claim 1 , further comprising a display operably coupled with the one or more computing devices, wherein the one or more computing devices are further configured to execute the instructions which further comprise displaying on the display the sensor data received from the at least one first sensor while directing the power to the at least one electrode.

12. A computer-implemented method for controlling ablation of a target tissue of a patient with an ablation device comprising at least one electrode and at least one sensor, the method comprising:

under control of one or more computing devices executing specific computer executable instructions,

(i) directing power to the at least one electrode positioned against a target tissue at a power level sufficient for ablating the target tissue, said target tissue being identified based on patient image data stored on a storage medium of the one or more computing devices, the patient image data including a distal end of a main pulmonary artery, a proximal end of a left pulmonary artery, and a proximal end of a right pulmonary artery, wherein said target tissue comprises a left lateral side of the distal end of the main pulmonary artery;

(ii) determining, based on sensor data received from the at least one sensor, an amount of time the ablation is to be performed at a location of the target tissue, wherein the sensor data comprises one or more characteristics of the target tissue, and

(iii) regulating the directed power to the at least one electrode or the amount of time the ablation is performed at the location of the target tissue, such that the target tissue is ablated to affect a reduction in mean pulmonary artery pressure of the patient.

13. The computer-implemented method of claim 12 , wherein the at least one electrode comprises a first electrode and a second electrode, and further comprising switching from directing power to the first electrode of the ablation device, the first electrode positioned against a first portion of the target tissue, to directing power to the second electrode of the ablation device, the second electrode positioned against a second portion of the target tissue, wherein the switching is performed using a mechanical switch that comprises at least one moving part.

14. The computer-implemented method of claim 13 , wherein the switching is performed using a rotatable knob.

15. The computer-implemented method of claim 12 , wherein the at least one electrode comprises a first electrode and a second electrode, and further comprising switching from directing the power to the first electrode of the ablation device, the first electrode positioned against a first portion of the target tissue, to directing power to the second electrode of the ablation device, the second electrode positioned against a second portion of the target tissue, wherein the switching is performed using a switching system comprising:

a mechanical switch that comprises at least one moving part, and

a solid state switch that comprises no moving parts.

16. The computer-implemented method of claim 12 , comprising directing the power to the at least electrode positioned against the target tissue comprising a left lateral apex of the distal end of the pulmonary artery.

17. The computer-implemented method of claim 12 , wherein the at least one electrode comprises a first electrode and a second electrode, and wherein the method comprises directing the power to the first electrode positioned against a first portion of the target tissue comprising a left lateral apex of the distal end of the main pulmonary artery, and directing the power to the second electrode positioned against a second portion of the target tissue comprising an anterior side or a posterior side of the left lateral apex of the distal end of the main pulmonary artery.

18. A computer-readable, non-transitory storage medium storing computer executable instructions that, when executed by one or more computer systems, configure the one or more computer systems to perform operations comprising:

(i) directing power to at least one electrode of an ablation device operably coupled with the one or more computer systems, wherein the at least one electrode is positioned against a target tissue of a patient, and wherein the power is directed to the at least one electrode at a first power level sufficient for ablating the target tissue, said target tissue being identified based on patient image data stored on a storage medium of the one or more computer systems, the patient image data including a distal end of a main pulmonary artery, a proximal end of a left pulmonary artery, and a proximal end of a right pulmonary artery, wherein said target tissue comprises a left lateral side of the distal end of the main pulmonary artery;

(ii) determining, based on sensor data received from at least one sensor of the ablation device, an amount of time the ablation is to be performed at a location of the target tissue, wherein the sensor data comprises one or more characteristics of the target tissue, and

(iii) regulating the directed power to the at least one electrode or the amount of time the ablation is performed at the location of the target tissue, such that the target tissue is ablated to affect a reduction in mean pulmonary artery pressure of the patient.

19. The computer-readable, non-transitory storage medium of claim 18 , wherein the at least one electrode comprises a first electrode and a second electrode, wherein the computer executable instructions further configure the one or more computer systems to perform operations comprising switching from directing power to the first electrode of the ablation device to directing power to the second electrode of the ablation device, wherein the switching is performed by controlling a solid state switch that comprises no moving parts.

20. The computer-readable, non-transitory storage medium of claim 18 , wherein the power is directed to the at least one electrode positioned against the target tissue comprising a left lateral apex of the distal end of the pulmonary artery.

21. The computer-readable, non-transitory storage medium of claim 18 , wherein the at least one electrode comprises a first electrode and a second electrode, and wherein the power is directed to the first electrode positioned against a first portion of the target tissue comprising a left lateral apex of the distal end of the main pulmonary artery, and wherein the power is directed to the second electrode positioned against a second portion of the target tissue comprising an anterior side or a posterior side of the left lateral apex of the distal end of the main pulmonary artery.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2026
From: PULNOVO MEDICAL (WUXI) CO., LTD.
To: PULNOVO MEDICAL INC.
Reel/Frame 073758/0501 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 26, 2016
From: CHEN, SHAOLIANG
To: PULNOVO MEDICAL (WUXI) CO., LTD.
Reel/Frame 037589/0041 →
Priority Claims (2)
CN 2012 1 0453470 · Nov 13, 2012 · national
CN 2013 1 0103141 · Mar 27, 2013 · national
Continuity (5)
Continuation 14666214 · Mar 23, 2015
Continuation In Part 14530588 · Oct 31, 2014
Continuation In Part 14079230 · Nov 13, 2013
Provisional Application 62023781 · Jul 11, 2014
Related Publication 20150201988A1 · Jul 23, 2015