Implantable medical device with two or more telemetry systems
First Claim
Patent Images
1. An implantable telemetry system comprising:
- an implantable medical device including an electronic circuit;
an implantable near field antenna connected to the electronic circuit for conducting inductively coupled wireless communication from the implantable medical device; and
an implantable far field antenna connected to the electronic circuit for conducting long range radio frequency (RF) wireless communication from the implantable medical device according to a duty cycle, and wherein a time of the duty cycle is determined based on a signal received by the near field antenna.
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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.
274 Citations
36 Claims
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1. An implantable telemetry system comprising:
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an implantable medical device including an electronic circuit; an implantable near field antenna connected to the electronic circuit for conducting inductively coupled wireless communication from the implantable medical device; and an implantable far field antenna connected to the electronic circuit for conducting long range radio frequency (RF) wireless communication from the implantable medical device according to a duty cycle, and wherein a time of the duty cycle is determined based on a signal received by the near field antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for programming an implantable device, comprising the acts of:
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coupling a plurality of wireless transmitters and a near field receiver of an implantable medical device to a circuit of the device; configuring at least one wireless transmitter to operate according to a duty cycle; and programming the device to select one or more of the plurality of wireless transmitters for transmitting an outbound signal based on an inbound signal received using the near field receiver, and to determine a time of the duty cycle based on the inbound signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of operating an implantable telemetry system, comprising the acts of:
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receiving at the implantable telemetry system a first wireless signal from a near field transmission source; upon receiving the first wireless signal, opening a channel in the implantable telemetry system to communicate using a wireless far field link, the opening performed in response to receiving the first wireless signal; receiving data on the channel; closing the channel after a predetermined period; storing the data in memory of an implantable medical device; and operating the implantable medical device based on the memory. - View Dependent Claims (27, 28, 29, 30)
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31. A method operating an implantable device, comprising the acts of:
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powering a near field link of an implantable medical device; powering a far field receiver of the implantable medical device according to a duty cycle; transmitting a near field acknowledge signal using the near field link if a near field signal is received; and powering a far field transmitter of the device after having received a far field key signal using the far field receiver during a time when the far field receiver is powered. - View Dependent Claims (32, 33, 34, 35, 36)
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Specification