Graphical user interface for real-time RF lesion depth display
First Claim
1. A graphical user interface system for displaying characteristics of target tissue during an ablation procedure, the system comprising:
- an electronic control unit (ECU) configured to;
receive as an input data a complex impedance measured between a first electrode and the target tissue for a time period during the ablation procedure, wherein the time period is a time during which ablation energy is applied to the target tissue,receive at least one characteristic of the target tissue,receive a signal indicative of a contact force measured between a second electrode and the target tissue for the time period,determine a predicted depth value of a lesion in the target tissue based on each of the following;
i) the complex impedance, ii) the time period, and iii) the signal indicative of the contact force,associate the predicted depth value with the at least one characteristic of the target tissue, andoutput the predicted depth value; and
a display device operatively connected to the ECU, wherein the display device is configured to receive the predicted depth value and display a visual representation of the predicted depth value of the lesion in the target tissue for the time period.
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Abstract
A system for displaying characteristics of target tissue during an ablation procedure is provided that includes an electronic control unit (ECU) configured to receive data regarding electrical properties of the target tissue for a time period. The ECU is also configured to determine a value responsive to the data and indicative of at least one of a predicted depth of a lesion in the target tissue, a predicted temperature of the target tissue, and a likelihood of steam pop of the target tissue for the time period. The system further includes a display device operatively connected to the ECU. The display device is configured to receive the value and display a visual representation indicative of at least one of a predicted depth of a lesion in the target tissue, a predicted temperature of the target tissue, and a likelihood of steam pop of the target tissue for the time period.
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Citations
22 Claims
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1. A graphical user interface system for displaying characteristics of target tissue during an ablation procedure, the system comprising:
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an electronic control unit (ECU) configured to; receive as an input data a complex impedance measured between a first electrode and the target tissue for a time period during the ablation procedure, wherein the time period is a time during which ablation energy is applied to the target tissue, receive at least one characteristic of the target tissue, receive a signal indicative of a contact force measured between a second electrode and the target tissue for the time period, determine a predicted depth value of a lesion in the target tissue based on each of the following;
i) the complex impedance, ii) the time period, and iii) the signal indicative of the contact force,associate the predicted depth value with the at least one characteristic of the target tissue, and output the predicted depth value; and a display device operatively connected to the ECU, wherein the display device is configured to receive the predicted depth value and display a visual representation of the predicted depth value of the lesion in the target tissue for the time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for displaying characteristics of target tissue during an ablation procedure, the system comprising:
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an ablation catheter including a first sensor configured for obtaining data regarding a complex impedance measured between a first electrode and the target tissue for a time period during the ablation procedure and a second sensor configured for obtaining data regarding a contact force measured between a second electrode and the target tissue for the time period, wherein the time period is a time during which ablation energy is applied to the target tissue; an electroanatomic visualization, mapping, and navigation system configured for generating an anatomical model of at least the target tissue, the electroanatomic visualization, mapping, and navigation system including a display device for displaying the anatomical model; and a graphical user interface system comprising;
an electronic control unit (ECU) configured to receive as an input data the complex impedance for the time period;
receive as an input data a thickness of the target tissue;
receive as an input data a signal indicative of the contact force for the time period;
determine a predicted depth value of a lesion in the target tissue based on each of the following;
i) the complex impedance, ii) the time period, and iii) the signal indicative of the contact force;
associate the predicted depth value with the thickness of the target tissue; and
output the predicted depth value;wherein the display device is operatively connected to the ECU and is configured to receive the predicted depth value and to display i) a visual representation of the predicted depth value of the lesion in the target tissue for the time period and ii) a visual representation of the thickness of the target tissue. - View Dependent Claims (19, 20, 21)
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22. A method for displaying characteristics of target tissue during an ablation procedure, the method comprising:
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obtaining data regarding a thickness of the target tissue; displaying a visual representation indicative of the thickness of the target tissue; obtaining data regarding a complex impedance measured between a first electrode and the target tissue for a time period during the ablation procedure, wherein the time period is a time during which ablation energy is applied to the target tissue; obtaining data regarding a contact force measured between a second electrode and the target tissue for the time period; determining a predicted depth value of a lesion in the target tissue based on each of the following;
(i) the data regarding the complex impedance, (ii) the time period, (iii) and the data regarding the contact force;associating the predicted depth value with the thickness of the target tissue; and displaying a visual representation of the predicted depth value of the lesion in the target tissue for the time period.
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Specification