Implantable medical device with two or more telemetry systems
AssigneeCardiac Pacemakers, Inc.
InventorsJeffrey A. Von Arx, Keith Johnson, Scott T. Mazar, William J. Linder
Life of this patent
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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.
Claims46
A system comprising:
- an implantable medical device including an electronic circuit;
- a near field antenna connected to the electronic circuit for conducting inductively coupled wireless communication with the implantable medical device;
- and
- a far field antenna connected to the electronic circuit for conducting radio frequency (RF) wireless communication with the implantable medical device according to a duty cycle.
A method comprising:
- coupling a plurality of wireless transmitters of an implantable medical device to a circuit of the device;
- and
- programming the device to select one or more of the plurality of wireless transmitters for transmitting an outbound signal.
A method comprising:
- receiving an inbound wireless signal at an implantable medical device;
- selecting one of a plurality of receivers of the implantable medical device;
- and
- at the output of the selected receiver, decoding data from the inbound wireless signal.
A method comprising:
- receiving a first wireless signal from a near field transmission source;
- opening a channel to communicate using a wireless far field link;
- 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.
A method comprising:
- powering a near field link of an implantable medical device;
- powering a far field receiver of the 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.
Dependencies are inferred from the claim text.