System and method for assessing lesions in tissue
First Claim
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1. A guidance system for a catheter, comprising:
- an electronic control unit (ECU) configured to;
analyze first and second components of a complex impedance between an electrode and tissue;
analyze a state of contact between the electrode and the tissue;
determine location coordinates of the electrode over a period of time to analyze a stability of the electrode location; and
assess lesion formation in at least one site on the tissue according to the first and second complex impedance components, according to the state of contact, and according to the stability of the electrode location; and
a display device, electrically coupled with said ECU, configured to provide feedback to a user for manipulating the catheter according to said lesion formation assessment.
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Abstract
A method and system for assessing lesion formation in tissue is provided. The system includes an electronic control unit (ECU). The ECU is configured to acquire values for first and second components of a complex impedance between the electrode and the tissue, and to calculate an index responsive to the first and second values. The ECU is further configured to process the ECI to assess lesion formation in the tissue.
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19 Claims
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1. A guidance system for a catheter, comprising:
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an electronic control unit (ECU) configured to; analyze first and second components of a complex impedance between an electrode and tissue; analyze a state of contact between the electrode and the tissue; determine location coordinates of the electrode over a period of time to analyze a stability of the electrode location; and assess lesion formation in at least one site on the tissue according to the first and second complex impedance components, according to the state of contact, and according to the stability of the electrode location; and a display device, electrically coupled with said ECU, configured to provide feedback to a user for manipulating the catheter according to said lesion formation assessment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for generating an electroanatomical map, comprising:
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an electronic control unit (ECU) configured to; analyze first and second components of a complex impedance between an electrode and tissue; analyze a state of contact between the electrode and the tissue; determine location coordinates of the electrode over a period of time to analyze a stability of the electrode location; assess lesion formation in at least one site on the tissue based on the complex impedance values, the contact state, and the stability of the electrode location; and generate an electroanatomical map containing a plurality of assessed lesion sites; and a display device, electrically coupled with said ECU, configured to display respective tissue characteristics associated with each of the plurality of assessed lesion sites. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification