Implantable medical device telemetry with hop-on-error frequency hopping
AssigneeCardiac Pacemakers, Inc.
InventorsJoseph E. Bange, Earle Roberts, Kenneth F. Cowan, Mehdi Katoozi
Life of this patent
Estimating the term…
Abstract
A telemetry system for data transmission between an implantable medical device and an external system includes a plurality of channels each representing a frequency band within a predetermined frequency range. The data transmission is performed using at least one active channel at any instant. Channel hopping is performed upon detecting an interruption of communication, such that a scan is performed through an array of channels selected from the plurality of channels. If a data frame is not successfully transmitted, it is repeatedly re-transmitted using the current and/or the next active channels until its transmission becomes successful.
Claims20
A system, comprising:
- an implantable medical device including:
- a therapy module;
- and
- an implant telemetry module;
- and
- an external system, including:
- a programming module;
- and
- an external telemetry module,
- wherein the implant telemetry module and the external telemetry module each include a telemetry circuit including:
- an antenna;
- a transceiver coupled to the antenna, the transceiver adapted to transmit over a plurality of channels each representing a predetermined frequency band for data transmission between the implantable medical device and the external system;
- and
- a telemetry controller coupled to the transceiver, the telemetry controller adapted to control a channel hopping process including detecting failure of a communication session on a first frequency, synchronously scanning a subset of available channels included in a synchronous scan list for a response from the implantable medical device when the failure is detected, resuming the communication session with the implantable medical device after receiving a response, on a second frequency on which the response was received, and asynchronously scanning available channels when no response is received during synchronous scanning.
A method, comprising:
- communicating wirelessly with an implantable medical device using a first frequency until failure of a communication session is detected on the first frequency;
- synchronously scanning a subset of available channels according to a synchronous scan list for a response from the implantable medical device when the failure is detected;
- resuming the communication session with the implantable medical device after receiving a response, on a second frequency on which the response was received;
- and
- asynchronously scanning available channels when no response is received during synchronous scanning.
A system, comprising:
- means for communicating wirelessly with an implantable medical device using a first frequency until failure of a communication session is detected on the first frequency;
- means for synchronously scanning a subset of available channels according to a synchronous scan list for a response from the implantable medical device when the failure is detected;
- means for resuming the communication session with the implantable medical device after receiving a response, on the frequency which the response was received;
- and
- means for asynchronously scanning available channels when no response is received during synchronous scanning.
Dependencies are inferred from the claim text.