Methods for low power communication in an implantable medical device
First Claim
1. An implantable medical device comprising a telemetry module with a transmitter and a receiver and an input module being connectable to at least one electrode, the input module being adapted to obtain electrophysiological and/or hemodynamical signals from the heart via the at least one electrode at a predetermined sampling frequency, the device further comprising;
- a storage unit for storage of the obtained electrophysiological and/or hemodynamical signals;
a protocol module adapted to, at receipt of a protocol switch indication, activate and use a low power protocol for communication between said device and external units, wherein said protocol module is adapted to;
select parts of stored electrophysical and/or hemodynamical signal waveforms for telemetric transmission;
create communication packages having a predetermined length using said selected parts of said electrophysiological and/or hemodynamical signal waveform;
instruct said transmitter to transmit said communication packages at predetermined transmission intervals; and
instruct said telemetry module to power down said transmitter during intermediate periods between said transmission intervals.
1 Assignment
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Accused Products
Abstract
The present invention is directed to an implantable medical device and a method for power management for power efficient use of RF telemetry during, for example, conditions where long periods of continuous monitoring of the device and the patient is desired such as during MRI procedures. A protocol module adapted to, at receipt of a low power protocol indication, activate and use a low power protocol for communication between the device and external units. The protocol module is capable of switching between different communication protocols including a low power communication protocol and a default RF communication protocol depending on, for example, whether continuous long-term monitoring of the patient is performed. During the low power communication protocol, the protocol module is adapted to select parts of stored electrophysical and/or hemodynamical signal waveforms for telemetric transmission and to create communication packages having a predetermined length using the selected parts of the electrophysiological and/or hemodynamical signal waveform. Further, a transmitter is instructed to transmit the communication packages at predetermined transmission intervals and the telemetry module is instructed to power down the transmitter or set the transmitter in a lowest possible activation state during intermediate periods between the transmission intervals.
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Citations
16 Claims
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1. An implantable medical device comprising a telemetry module with a transmitter and a receiver and an input module being connectable to at least one electrode, the input module being adapted to obtain electrophysiological and/or hemodynamical signals from the heart via the at least one electrode at a predetermined sampling frequency, the device further comprising;
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a storage unit for storage of the obtained electrophysiological and/or hemodynamical signals; a protocol module adapted to, at receipt of a protocol switch indication, activate and use a low power protocol for communication between said device and external units, wherein said protocol module is adapted to; select parts of stored electrophysical and/or hemodynamical signal waveforms for telemetric transmission; create communication packages having a predetermined length using said selected parts of said electrophysiological and/or hemodynamical signal waveform; instruct said transmitter to transmit said communication packages at predetermined transmission intervals; and instruct said telemetry module to power down said transmitter during intermediate periods between said transmission intervals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for an implantable medical device comprising a telemetry module with a transmitter and a receiver and an input module being connectable to at least one electrode, said input module being adapted to obtain electrophysiological and/or hemodynamical signals from the heart via said at least one electrode at a predetermined sampling frequency, said method comprising;
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storing of the obtained electrophysiological and/or hemodynamical signals; at receipt of an protocol switch indication, activating and using a low power protocol for communication between said device and external units, including; selecting parts of stored electrophysical and/or hemodynamical signal waveforms for telemetric transmission; creating communication packages having a predetermined length using said selected parts of said electrophysiological and/or hemodynamical signal waveform; instructing said transmitter to transmit said communication packages at predetermined transmission intervals; and instructing said telemetry module to power down said transmitter during intermediate periods between said transmission intervals. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification