Electrogram-based ablation control
First Claim
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1. A device for controlling the provision of ablation energy, the device comprising:
- a memory configured to store a threshold parameter indicative of previously-measured electrical activity of a tissue of a patient, wherein the threshold is determined from a characterization of an electrogram; and
an electronic control unit (ECU) configured to;
receive an electrogram respective of the patient detected from inside the patient;
analyze said electrogram to yield a data set comprising frequency content of said electrogram;
compare at least a portion of said data set to said threshold parameter to detect an adverse event; and
modify the provision of ablation energy based, at least in part, on a comparison of said data set to said threshold parameter.
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Abstract
Methods, devices, and systems for predicting, diagnosing, and preventing adverse events during an ablation procedure are described. A method for providing ablation energy includes receiving a first signal based on biological activity of a tissue of a patient. The method further includes analyzing the first signal to yield a first data set, establishing a threshold parameter according to the first data set, and providing ablation energy for the ablation of a biological site.
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Citations
20 Claims
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1. A device for controlling the provision of ablation energy, the device comprising:
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a memory configured to store a threshold parameter indicative of previously-measured electrical activity of a tissue of a patient, wherein the threshold is determined from a characterization of an electrogram; and an electronic control unit (ECU) configured to; receive an electrogram respective of the patient detected from inside the patient; analyze said electrogram to yield a data set comprising frequency content of said electrogram; compare at least a portion of said data set to said threshold parameter to detect an adverse event; and modify the provision of ablation energy based, at least in part, on a comparison of said data set to said threshold parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for performing an ablation procedure, the system comprising:
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an ablation generator configured to provide ablation energy to a medical device including one or more electrodes; and an electronic control unit (ECU) configured to; receive a signal detected with at least one of said one or more electrodes based on the biological activity of a patient and detected from inside the patient; analyze said signal to yield a data set comprising frequency content of said signal; compare at least a portion of said data set to a threshold parameter to detect an adverse event, said threshold parameter indicative of electrical activity of a tissue of the patient, wherein the threshold is determined from a characterization of an electrogram; and provide a command for said ablation generator to modify the provision of ablation energy based, at least in part, on a comparison of said data set to said threshold parameter. - View Dependent Claims (11, 12, 13)
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14. A method for providing ablation energy, comprising:
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receiving a first electrogram respective of a patient and detected from within the patient; analyzing said first electrogram to yield a first data set comprising frequency content of said first electrogram; establishing a threshold parameter according to said first data set, wherein the threshold is determined from a characterization of the first electrogram; providing ablation energy for the ablation of a biological site; receiving a second electrogram respective of the patient and detected from within the patient after receiving said first electrogram; analyzing said second signal to yield a second data set comprising frequency content of said second electrogram; comparing at least a portion of said second data set to said threshold parameter to predict the likelihood of an adverse event; and modifying a parameter of provided ablation energy according to said comparison. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification