Telemetry duty cycle management system for an implantable medical device
First Claim
Patent Images
1. A telemetry system, comprising:
- an implantable device and an external device, each having an RF transmitter and receiver and a wakeup timer;
wherein one of the implantable or external devices is configured to operate as a master device while the other device is configured to operate as a slave device;
wherein the master device is programmed to power up its RF transmitter and receiver for a specified master time window and to transmit a digital key to the slave device at wakeup intervals defined by the wakeup timer and listen for a response;
wherein slave device is programmed to power up its RF receiver for a specified slave time window to listen for a digital key transmitted by the master device at wakeup intervals defined by the wakeup timer and to power up its RF transmitter to transmit a response to the master device if the digital key is received; and
, wherein the master and slave devices are programmed such that a communications session is established between the master and slave devices when a response is received by the master device.
0 Assignments
0 Petitions
Accused Products
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.
216 Citations
20 Claims
-
1. A telemetry system, comprising:
-
an implantable device and an external device, each having an RF transmitter and receiver and a wakeup timer;
wherein one of the implantable or external devices is configured to operate as a master device while the other device is configured to operate as a slave device;
wherein the master device is programmed to power up its RF transmitter and receiver for a specified master time window and to transmit a digital key to the slave device at wakeup intervals defined by the wakeup timer and listen for a response;
wherein slave device is programmed to power up its RF receiver for a specified slave time window to listen for a digital key transmitted by the master device at wakeup intervals defined by the wakeup timer and to power up its RF transmitter to transmit a response to the master device if the digital key is received; and
,wherein the master and slave devices are programmed such that a communications session is established between the master and slave devices when a response is received by the master device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A telemetry system, comprising:
-
an implantable device and an external device, each having an RF transmitter and receiver a wakeup timer incorporated into the implantable device wherein the external device is programmed to power up its transmitter and receiver for a specified master time window and to transmit a digital key to the implantable device and listen for a response;
wherein implantable device is programmed to power up its receiver for a specified slave time window to listen for a digital key transmitted by the external device at wakeup intervals defined by the wakeup timer and to power up its transmitter to transmit a response to the external device if the digital key is received; and
,wherein the external and implantable devices are programmed such that a communications session is established between the devices when a response is received by the external device and further wherein the implantable device is programmed to power down its transmitter and receiver after the communications session is finished. - View Dependent Claims (17, 18, 19, 20)
-
Specification