Therapy circuit protection for implantable medical device
First Claim
Patent Images
1. A system, comprising:
- a medical device, comprising;
a processor circuit;
a therapy circuit configured to provide a specified defibrillation therapy to a tissue site, the specified defibrillation therapy including a scheduled completion, the therapy circuit including a protection circuit configured to adjust specification of the specified defibrillation therapy being provided so as to provide an adjusted defibrillation therapy before the scheduled completion; and
a monitoring circuit comprising a comparator, the monitoring circuit configured to monitor a therapy circuit defibrillation therapy output energy parameter using the comparator during providing the specified defibrillation therapy;
wherein the comparator is configured to compare the therapy circuit defibrillation therapy output energy parameter with a specified threshold corresponding to a fault; and
wherein the monitoring circuit is configured to trigger the protection circuit to adjust specification of the specified defibrillation therapy when the therapy circuit defibrillation therapy output energy parameter exceeds the specified threshold as indicated by the comparator;
wherein the monitoring circuit and the protection circuit are configured to operate asynchronously with respect to the processor circuit and without requiring the intervention of the processor circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical device can include a therapy circuit configured to provide a specified electrostimulation therapy to a tissue site, the specified electrostimulation therapy including a scheduled completion, the therapy circuit including a protection circuit configured to adjust specification of the electrostimulation therapy being provided so as to provide an adjusted electrostimulation therapy before the scheduled completion. The medical device can include a monitoring circuit comprising a comparator. The monitoring circuit can be configured to trigger the protection circuit to inhibit the therapy circuit when the therapy circuit output parameter exceeds the specified threshold as indicated by the comparator.
-
Citations
19 Claims
-
1. A system, comprising:
a medical device, comprising; a processor circuit; a therapy circuit configured to provide a specified defibrillation therapy to a tissue site, the specified defibrillation therapy including a scheduled completion, the therapy circuit including a protection circuit configured to adjust specification of the specified defibrillation therapy being provided so as to provide an adjusted defibrillation therapy before the scheduled completion; and a monitoring circuit comprising a comparator, the monitoring circuit configured to monitor a therapy circuit defibrillation therapy output energy parameter using the comparator during providing the specified defibrillation therapy; wherein the comparator is configured to compare the therapy circuit defibrillation therapy output energy parameter with a specified threshold corresponding to a fault; and wherein the monitoring circuit is configured to trigger the protection circuit to adjust specification of the specified defibrillation therapy when the therapy circuit defibrillation therapy output energy parameter exceeds the specified threshold as indicated by the comparator; wherein the monitoring circuit and the protection circuit are configured to operate asynchronously with respect to the processor circuit and without requiring the intervention of the processor circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 19)
-
14. An implantable medical device including a processor circuit and a memory circuit, the memory circuit including instructions that, when performed by the processor circuit, cause the implantable medical device to:
-
provide a specified defibrillation therapy to a tissue site using a therapy circuit, the specified defibrillation therapy including a scheduled completion; monitor a therapy circuit defibrillation therapy output energy parameter using a monitoring circuit during the providing the specified defibrillation therapy, including comparing a therapy circuit defibrillation therapy output energy parameter to a specified threshold corresponding to a fault; and adjust the specification of the specified defibrillation therapy being provided using a protection circuit when the therapy circuit defibrillation therapy output energy parameter exceeds the specified threshold so as to provide an adjusted defibrillation therapy before the scheduled completion; wherein the monitoring circuit and the protection circuit are configured to operate asynchronously with respect to the processor circuit and without requiring the intervention of the processor circuit. - View Dependent Claims (15, 16, 17, 18)
-
Specification