System and Method for Estimating A Treatment Region for a Medical Treatment Device

Patent metadata

Field	Value
Publication number	US-2016354142-A1
Application number	US-201615239229-A
Country	US
Kind code	A1
Filing date	Aug 17, 2016
Priority date	Mar 31, 2009
Publication date	Dec 8, 2016
Grant date	—

Abstract

A medical system and method for estimating a treatment region for a medical treatment device is provided. The system includes a memory; a processor coupled to the memory; and a treatment control module stored in the memory and executable by the processor. The treatment control module generates an estimated treatment region which is an estimate of a treatment region which would have been derived as a result of a numerical model analysis such as a finite element analysis. Advantageously, the estimated treatment region is generated using a fraction of the time it takes to generate the region using the numerical model analysis.

First claim

1 . A system for interactively planning a treatment of a patient with an electroporation medical treatment device that applies irreversible electroporation (IRE) pulses through a plurality of electrodes defining a treatment region, the system comprising:
a memory; a display device; a processor coupled to the memory and the display device; and a treatment control module stored in the memory and executable by the processor, the treatment control module adapted to graphically display in the display device:
a treatment target area; and
in real time a continuously changing treatment region and positions of the electrodes that apply IRE pulses as a user moves at least one of the electrodes.

2 . The system of claim 1 , further comprising a pointing device coupled to the processor, wherein the treatment control module receives a continuously changing position of at least one displayed electrode through the pointing device and graphically displays in the display device the continuously changing treatment region corresponding to the changing position of the displayed electrode.

3 . The system of claim 1 wherein as the user continuously moves the at least one electrode of a pair of electrodes, the treatment control module displays a corresponding changing voltage level to be applied between the pair of electrodes.

4 . The system of claim 3 , wherein the treatment control module displays the voltage level in a highlighted manner when the voltage level reaches the maximum capacity of the medical treatment device.

5 . The system of claim 1 , wherein when a user continuously moves a selected electrode in the display device, the treatment control module continuously determines and displays the distance between the selected electrode and at least one other electrode.

6 . The system of claim 1 , wherein the treatment control module determines and displays optimal placement locations of the plurality of electrodes based on the target treatment area.

7 . The system of claim 1 , wherein the treatment control module rotates the displayed treatment region according to the user input so as to allow the user to match the orientation of the displayed treatment region to an orientation of target region displayed treatment region to an orientation of a target region displayed in an imaging device.

8 . The system of claim 1 , wherein the treatment control module is adapted to generate a test signal for each pair of electrodes and detect a low current condition and a high current condition between the electrodes in the each pair of electrodes based on the test signal.

9 . The system of claim 8 , wherein the treatment control module determines an expected current draw for an actual treatment based on the test signal and indicates an error in the display device if the determined current draw exceeds a threshold current draw.

10 . The system of claim 1 , wherein the treatment control module is adapted to detect an over-current condition between a pair of electrodes during treatment of a patient and when the over-current condition is detected, provide an option for the user to retreat a treatment zone associated with the pair of electrodes at a different treatment energy level.

11 . The system of claim 1 , wherein the treatment control module is adapted to detect an over-current condition between one or more pairs of electrodes among a plurality of pairs of electrodes during treatment of a patient and store in the memory information regarding which pair of pairs of electrodes have caused the over-current condition.

12 . The system of claim 1 , wherein the treatment control module is adapted to store in the memory the current and voltage levels as the IRE pulses are delivered through the electrodes and to display the stored current and voltage levels as a function of time in the display device.

13 . The system of claim 12 , wherein responsive to user input, the treatment control module is adapted to provide zooming of the displayed current and voltage levels.

14 . The system of claim 1 , wherein the treatment control module is adapted to display in the display device at least one fiducial and the distance from the fiducial to at least one of the electrodes.

15 . The system of claim 1 , wherein the treatment control module is adapted to display in the display device at least two fiducials and to continuously display the distance from the fiducials to at least one of the electrodes as the one electrode is moved by the user in the display device.

16 . The system of claim 1 , wherein the treatment control module is adapted to display a boundary of the treatment region in a highlighted manner relative to the treatment region.

17 . The system of claim 1 , wherein the treatment control module is adapted to display an inside and outside boundary of the treatment region in a highlighted manner relative to the treatment region.

18 . The system of claim 1 , wherein the treatment control module is adapted to display an inside boundary of the treatment region in a highlighted manner so as to provide a contrast relative to the displayed target treatment.

19 . The system of claim 1 , wherein the treatment control module is adapted to receive measured distances between electrodes that have been placed in a patient and displays changed positions of the electrodes according to the received measured distances.

20 . The system of claim 1 , wherein the treatment control module is adapted to receive measured distances between electrodes that have been played in a patient and displays a changed treatment region corresponding to the received distances.

21 . The system of claim 20 , wherein the treatment control module is adapted to receive a lock indicator for at least one electrode and determines the changed positions of other electrodes relative to the at least one electrode having the lock indicator.

Assignees

• Angiodynamics Inc

Inventors

• Pearson Robert M
• Lovewell James G
• Warden David
• Morrison David Lee
• Samo Tony R
• Lai Hy Truong
• Hamilton William C
• Davalos Rafael Vidal
• Neal Ii Robert E

Classifications

• A61B2018/00684

  using lookup tables · CPC title

• A61B18/148

  having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy · CPC title

• A61B2018/00702

  Power or energy · CPC title

• A61B18/1206 Primary

  Generators therefor · CPC title

• A61B2018/00839

  Bioelectrical parameters, e.g. ECG, EEG · CPC title