Automatic lead functionality testing

A system comprising:

• a medical device including at least one electrical lead implanted within a patient, wherein the medical device is configured to deliver therapy to the patient using the at least one electrical lead;
• a physiological sensor that generates a physiological sensor signal;
• and
• a processor that:
• determines whether the patient is within at least one of a target activity state or a target posture based on the physiological sensor signal, wherein the processor determines whether the patient is within the target activity state based on determining at least one of whether body movement of the patient exceeds a threshold, whether the patient is changing postures, or whether the patient is exercising,
• initiates performance of a lead functionality test for the lead in response to the physiological sensor signal indicating that the patient is within the target activity state or target posture, wherein the processor measures an electrical parameter for at least two different combinations of electrodes of the medical device to perform the lead functionality test, and
• generates information that indicates at least one of whether the functionality of the at least one electrical lead has degraded or whether the at least one electrical lead has failed based on the measurements of the electrical parameter for the at least two different combination of electrodes.

A system comprising:

• means for determining whether a patient is within at least one of a target activity state or a target posture based on a physiological sensor signal, wherein the means for determining whether the patient is within the target activity state comprises means for determining at least one of whether body movement of the patient exceeds a threshold, whether the patient is changing postures, or whether the patient is exercising;
• means for performing a lead functionality test for at least one electrical lead of a medical device in response to the physiological sensor signal indicating that the patient is within the target activity state or target posture, wherein the at least one electrical lead is implanted in the patient and the medical device is configured to deliver therapy to the patient using the at least one electrical lead, wherein the means for performing the lead functionality test comprises means for measuring an electrical parameter for at least two different combinations of electrodes of the medical device;
• and
• means for generating information that indicates at least one of whether the functionality of the at least one electrical lead has degraded or whether the at least one electrical lead has failed based on the measurements of the electrical parameter for the at least two different combination of electrodes.

A system comprising:

• a medical device including at least one electrical lead implanted within a patient, wherein the medical device is configured to deliver therapy to the patient using the at least one electrical lead;
• a physiological sensor that generates a physiological sensor signal;
• and
• a processor that:
• determines at least one of whether body movement of the patient exceeds a threshold, whether the patient is in a target posture, whether the patient is changing postures, or whether the patient is exercising, based on the physiological sensor signal,
• initiates performance of a lead functionality test for the lead in response to the physiological sensor signal indicating the at least one of whether the body movement of the patient exceeds the threshold, whether the patient is in the target posture, whether the patient is changing postures, or whether the patient is exercising, wherein the processor measures an electrical parameter for at least two different combinations of electrodes of the medical device to perform the lead functionality test, and
• generates information that indicates at least one of whether the functionality of the at least one electrical lead has degraded or whether the at least one electrical lead has failed based on the measurements of the electrical parameter for the at least two different combination of electrodes.