System, methods and apparatus for waking an autonomous active implantable medical device communicating by pulses transmitted through the interstitial tissues of the body

摘要

Systems, methods, and devices for activating an implantable medical device from a low-power sleep state are provided. One method includes receiving a wake-up signal at a receiver device from a transmitter device. The wake-up signal includes a series of pulses having a pulse pattern encoding a predetermined wake-up code. The wake-up signal is transmitted via intracorporeal communication of electrical pulses conducted by interstitial tissues of a patient's body. The method further includes extracting the wake-up code from the wake-up signal and determining whether the wake-up code corresponds to a stored wake-up value. The method further includes, in response to determining that the predetermined wake-up code corresponds to the stored wake-up value, switching at least one active circuit element of the receiver device from a lower-power sleep state into a higher-power operational state.

主权项

1. A system comprising:
a transmitter device configured to generate a wake-up signal, wherein the wake-up signal comprises a series of pulses having a pulse pattern encoding a predetermined wake-up code, wherein the transmitter device is configured to apply the wake-up signal to at least one first electrode, and wherein the transmitter device comprises a first implantable medical device; and a receiver device comprising an energy source, at least one circuit element, and at least one second electrode, wherein the receiver device is configured to receive the wake-up signal and process the wake-up signal to extract the predetermined wake-up code, and wherein the receiver device comprises a second implantable medical device; wherein the receiver device is further configured to selectively switch the at least one circuit element between a sleep state in which the at least one circuit element utilizes a lower amount of power from the energy source and an operational state in which the at least one circuit element utilizes a higher amount of power from the energy source; wherein the receiver device is configured to determine whether the predetermined wake-up code extracted from the received wake-up signal corresponds to a stored wake-up value, and wherein, in response to determining that the predetermined wake-up code corresponds to the stored wake-up value, the receiver device is configured to switch the at least one circuit element from the sleep state into the operational state; and wherein the transmitter device is configured to transmit the wake-up signal to the receiver device via intracorporeal communication of electrical pulses conducted by interstitial tissues of a patient's body.