FAILSAFE PROGRAMMING OF IMPLANTABLE MEDICAL DEVICES
First Claim
Patent Images
1. A method comprising:
- sending programming signals that affect operation of an implantable medical device to the implantable medical device via wireless telemetry during a programming operation; and
sending stay-alive signals to a watchdog unit during the programming operation to allow the watchdog unit to detect failure of a wireless telemetry session between a programming device and the implantable medical device during the programming operation.
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Abstract
A watchdog unit receives stay-alive signals from a programming device during programming of an implantable medical device. The watchdog unit maintains a watchdog timer, and resets the timer upon receipt of each stay-alive signal. If the watchdog timer expires, the watchdog unit changes a mode of operation of the implantable device, e.g., places the implantable medical device into a known, safe state. For example, the watchdog unit may cause the implantable medical device to suspend delivery of therapy, perform a power-on reset, and/or recall a known, safe, therapy delivery program.
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Citations
12 Claims
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1. A method comprising:
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sending programming signals that affect operation of an implantable medical device to the implantable medical device via wireless telemetry during a programming operation; and sending stay-alive signals to a watchdog unit during the programming operation to allow the watchdog unit to detect failure of a wireless telemetry session between a programming device and the implantable medical device during the programming operation. - View Dependent Claims (2, 3, 4, 5)
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6. A programming device comprising:
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a telemetry circuit; and a processor to send programming signals that affect operation of an implantable medical device to the implantable medical device via the telemetry circuit during a programming operation, and send stay-alive signals to a watchdog unit during the programming operation to allow the watchdog unit to detect failure of a wireless telemetry session between the programming device and the implantable medical device during the programming operation. - View Dependent Claims (7, 8, 9)
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10. A computer-readable medium comprising instructions that cause a programmable processor to:
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send programming signals that affect operation of an implantable medical device to the implantable medical device via wireless telemetry during a programming operation; and send stay-alive signals to a watchdog unit during the programming operation to allow the watchdog unit to detect failure of a wireless telemetry session between a programming device and the implantable medical device during the programming operation. - View Dependent Claims (11, 12)
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Specification