Method and apparatus for providing safe long-range telemetry with implantable medical devices
First Claim
1. A method comprising:
- detecting a predetermined condition evidencing an active telemetry session between an IMD and a programmer;
setting a first timer to a predetermined time interval whenever the predetermined condition is detected;
setting a second timer to a second time interval when the first timer expires prior to detecting a subsequent predetermined condition;
initiating a low-output mode that maintains a low-output telemetry link between the IMD and the programmer; and
terminating the telemetry link between the IMD and programmer upon expiration of the second timer.
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Accused Products
Abstract
An implantable medical device (IMD) communication system and associated method for controlling the telemetry link status between an IMD and associated programmer during a telemetry session are provided. The system includes control circuitry for detecting conditions during predetermined time intervals for determining if a telemetry session is active or inactive. If a telemetry session is determined to be inactive for a specified interval of time, the telemetry link may be terminated or converted to a low-output, stand-by mode. Patient or device identity verification may be required prior to allowing programmer-IMD communication. A patient alert signal may be generated in response to programmer-IMD communication occurring after a predetermined time of telemetry session inactivity.
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Citations
11 Claims
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1. A method comprising:
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detecting a predetermined condition evidencing an active telemetry session between an IMD and a programmer; setting a first timer to a predetermined time interval whenever the predetermined condition is detected; setting a second timer to a second time interval when the first timer expires prior to detecting a subsequent predetermined condition; initiating a low-output mode that maintains a low-output telemetry link between the IMD and the programmer; and terminating the telemetry link between the IMD and programmer upon expiration of the second timer. - View Dependent Claims (2, 3, 4, 5)
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6. A device comprising:
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an antenna; telemetry circuitry that transmits and receives communications via the antenna; control circuitry that detects a predetermined condition evidencing an active telemetry session with a second device, sets a first timer to a predetermined time interval whenever the predetermined condition is detected, sets a second timer to a second time interval when the first timer expires prior to detecting a subsequent predetermined condition, initiates a low-output mode of the telemetry circuitry that maintains a low-output telemetry link between the device and the second device, and terminates the telemetry link between the device and the second device upon expiration of the second timer. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification