Wireless communication with an implantable medical device
First Claim
1. A method of communicating between an external device and an implantable medical device, the method comprising:
- operating a telemetry module of the external device in a low power state in which the telemetry module interleaves intervals during which one or more components of the telemetry module are powered down with intervals during which the one or more components of the telemetry module are powered up;
receiving, by the external device, a wakeup communication from the implantable medical device;
transitioning the telemetry module of the external device from the low power state to a high power state in response to receiving the wakeup communication from the implantable medical device;
transmitting one or more communications from the external device to the implantable medical device to establish a communication session in response to transitioning to the high power state, wherein transmitting the one or more communications comprises;
transmitting, with the external device, at least one wakeup communication to the implantable medical device in a first communication mode; and
transmitting, with the external device, at least one packet to the implantable medical device in a second communication mode indicating a desire to open the communication session subsequent to the at least one wakeup communication.
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Accused Products
Abstract
The disclosure relates generally to wireless communication with an implantable medical device. An implantable medical device (IMD) may initiate the establishment of a communication session by sending a wakeup communication to an external device with which the IMD desires to communicate. The external device may operate in low power state (sometimes referred to as a sleep state or a low current state) in which the external device occasionally powers up telemetry circuitry to monitor for the wakeup communication from the IMD. Upon receiving the wakeup communication, the external device transitions from the low power state to a high power state to establish the communication session with the IMD. Operating the external device in the low power state when no communication session is established reduces the amount of power consumed by the external device when no telemetry is occurring, thus enabling the external device to be powered by a battery.
27 Citations
17 Claims
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1. A method of communicating between an external device and an implantable medical device, the method comprising:
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operating a telemetry module of the external device in a low power state in which the telemetry module interleaves intervals during which one or more components of the telemetry module are powered down with intervals during which the one or more components of the telemetry module are powered up; receiving, by the external device, a wakeup communication from the implantable medical device; transitioning the telemetry module of the external device from the low power state to a high power state in response to receiving the wakeup communication from the implantable medical device; transmitting one or more communications from the external device to the implantable medical device to establish a communication session in response to transitioning to the high power state, wherein transmitting the one or more communications comprises; transmitting, with the external device, at least one wakeup communication to the implantable medical device in a first communication mode; and transmitting, with the external device, at least one packet to the implantable medical device in a second communication mode indicating a desire to open the communication session subsequent to the at least one wakeup communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An external device for communicating with an implantable medical device, the external device comprising:
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an antenna to transmit or receive communications from the implantable medical device; and a telemetry module coupled to the antenna, the telemetry module configured to operate in a low power state in which the telemetry module interleaves intervals during which one or more components of the telemetry module are powered down with intervals during which the one or more components of the telemetry module are powered up, receive a wakeup communication from the implantable medical device, transition from the low power state to a high power state in response to receiving the wakeup communication, and transmit one or more communications to the implantable medical device to establish a communication session in response to transitioning to the high power state, wherein the telemetry module transmits, to the implantable medical device, at least one wakeup communication in a first communication mode and transmits, to the implantable medical device, at least one packet in a second communication mode indicating a desire to open the communication session subsequent to the at least one wakeup communication. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification