Systems and methods for determining the likelihood of endocardial barotrauma in tissue during ablation
First Claim
1. A system for determining a likelihood of barotrauma occurring in a tissue during formation of a lesion in said tissue as a result of an ablation procedure being performed thereon, comprising:
- an electronic control unit (ECU) configured to;
acquire at least one value for at least one component of a complex impedance between an electrode and said tissue; and
calculate an index responsive to said at least one value for at least one component of said complex impedance, said index indicative of said likelihood of barotrauma occurring in said tissue;
wherein said ECU is further configured to assess stability of said electrode based on predetermined stability criteria, and said calculated index is responsive to a determination by said ECU that said electrode meets said predetermined stability criteria.
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Accused Products
Abstract
A method and system for determining a likelihood of barotrauma occurring in tissue during formation of a lesion therein is provided. The system includes an electronic control unit (ECU). The ECU is configured to acquire at least one value of at least one component of a complex impedance between an electrode and the tissue. The ECU is configured to calculate an index responsive to the at least one value of the at least one complex impedance component. The index is indicative of a likelihood of barotrauma occurring in the tissue. The method comprises acquiring at least one value of at least one component of a complex impedance between an electrode and the tissue. The method comprises calculating an index responsive to the at least one value of the at least one complex impedance component. The calculated index is indicative of a likelihood of barotrauma occurring in the tissue.
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Citations
23 Claims
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1. A system for determining a likelihood of barotrauma occurring in a tissue during formation of a lesion in said tissue as a result of an ablation procedure being performed thereon, comprising:
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an electronic control unit (ECU) configured to; acquire at least one value for at least one component of a complex impedance between an electrode and said tissue; and calculate an index responsive to said at least one value for at least one component of said complex impedance, said index indicative of said likelihood of barotrauma occurring in said tissue; wherein said ECU is further configured to assess stability of said electrode based on predetermined stability criteria, and said calculated index is responsive to a determination by said ECU that said electrode meets said predetermined stability criteria. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An article of manufacture, comprising:
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a non-transitory computer-readable storage medium encoded with instructions; determining a likelihood of barotrauma occurring in a tissue during formation of a lesion in said tissue as a result of an ablation procedure being performed thereon; calculating an index responsive to at least one value of at least one component of a complex impedance between said tissue and an electrode; assessing stability of said electrode based on predetermined stability criteria; and said calculated index is responsive to a determination that said electrode meets said predetermined stability criteria. - View Dependent Claims (11, 12, 13)
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14. A method for determining a likelihood of barotrauma occurring in a tissue during formation of a lesion in said tissue as a result of an ablation procedure being performed thereon, comprising the steps of:
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acquiring at least one value for at least one component of a complex impedance between an electrode and said tissue using an electronic control unit (ECU); and calculating an index using said ECU, responsive to said at least one value for at least one component of said complex impedance, said index indicative of said likelihood of barotrauma occurring in said tissue; wherein said ECU is further configured to assess stability of said electrode based on predetermined stability criteria, and said calculated index is responsive to a determination by said ECU that said electrode meets said predetermined stability criteria. - View Dependent Claims (15, 16, 17, 18, 19)
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20. An automated guidance system, comprising:
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a catheter manipulator assembly; a catheter associated with said catheter manipulator assembly, said catheter including an electrode associated therewith configured to deliver radiofrequency (RF) power to a tissue in a body; and a controller configured to control at least one of movement of the catheter and delivery of said RF power to said tissue by said electrode in response to an index calculated from at least one value of at least one component of a complex impedance between said electrode and said tissue; wherein said controller is configured to control at least one of the movement of the catheter and the delivery of said RF power to said tissue by said electrode in response to said index calculated from said at least one value of said at least one component of said complex impedance, and a value of said RF power applied to said tissue during formation of a lesion in said tissue. - View Dependent Claims (21, 22)
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23. A system for determining a likelihood of barotrauma occurring in a tissue during formation of a lesion in said tissue as a result of an ablation procedure being performed thereon, comprising:
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an electronic control unit (ECU) configured to; acquire at least one value for at least one component of a complex impedance between an electrode and said tissue; and calculate an index responsive to said at least one value for at least one component of said complex impedance, said index indicative of said likelihood of barotrauma occurring in said tissue; wherein said ECU is further configured to acquire a value for power applied to said tissue during the formation of said lesion in said tissue; and
said calculated index is responsive to said at least one value for at least one component of said complex impedance further using said value for power.
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Specification