Telemetry duty cycle management system for an implantable medical device
First Claim
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1. A method comprising:
- configuring a first device to communicate wirelessly;
configuring a second device to communicate wirelessly, wherein either the first device or the second device includes an implantable medical device;
powering a first transmitter and a first receiver of the first device for a first time window;
repeatedly transmitting a digital key at each of a plurality of first wakeup intervals;
monitoring for a response using the first receiver;
powering a second receiver of the second device for a second time window;
while powering the second receiver, receiving the digital key at one of a plurality of second wakeup intervals;
powering a second transmitter of the second device;
transmitting the response using the second transmitter based on receiving the digital key;
establishing a communication session between the first device and the second device; and
returning the first transmitter, the first receiver, the first transmitter and the second receiver to a quiescent mode after the communication session.
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Abstract
A telemetry system enabling radio frequency (RF) communications between an implantable medical device and an external device, or programmer, in which the RF circuitry is normally maintained in a powered down state in order to conserve power. At synchronized wakeup intervals, one of the devices designated as a master device powers up its RF transmitter to request a communications session, and the other device designated as a slave device powers up its RF transmitter to listen for the request. Telemetry is conducted using a far field or near field communication link.
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Citations
46 Claims
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1. A method comprising:
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configuring a first device to communicate wirelessly;
configuring a second device to communicate wirelessly, wherein either the first device or the second device includes an implantable medical device;
powering a first transmitter and a first receiver of the first device for a first time window;
repeatedly transmitting a digital key at each of a plurality of first wakeup intervals;
monitoring for a response using the first receiver;
powering a second receiver of the second device for a second time window;
while powering the second receiver, receiving the digital key at one of a plurality of second wakeup intervals;
powering a second transmitter of the second device;
transmitting the response using the second transmitter based on receiving the digital key;
establishing a communication session between the first device and the second device; and
returning the first transmitter, the first receiver, the first transmitter and the second receiver to a quiescent mode after the communication session. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method comprising:
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powering a first transmitter and a first receiver of a first device for a first time window;
repeatedly transmitting a digital key at each of a plurality of first wakeup intervals;
repeatedly monitoring for a response using the first receiver, the response based on the digital key; and
after repeatedly transmitting and repeatedly monitoring for a predetermined period of time, performing a non-synchronized receiver search. - View Dependent Claims (27)
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28. A method comprising:
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continuously powering a device circuit of an implantable medical device;
continuously powering a near field communication link coupled to the device circuit;
powering a far field receiver coupled to the device circuit according to a first duty cycle; and
transmitting an acknowledgment signal upon receiving a wireless command. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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36. A device comprising:
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a processor executing a program adapted to communicate data with an implantable medical device;
a far field communication link coupled to the processor; and
a duty cycle controller coupled to the far field communication link and adapted to operate the far field communication link in a manner compatible with a duty cycled implantable medical device. - View Dependent Claims (37, 38)
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39. An implantable medical device comprising:
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a processor executing a program adapted to communicate data with an external programmer;
a far field receiver coupled to the processor; and
a duty cycle controller coupled to the far field receiver and adapted to power and unpower the far field receiver according to a first duty cycle. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
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Specification