Method for controlling telemetry in an implantable medical device based on power source capacity
First Claim
1. A method for controlling an implantable medical device, the device having telemetry circuitry to receive both a first type of telemetry from a first external component and to receive a second type of telemetry from an external charging component, wherein the external charging component is used to wirelessly charge a power source in the implantable medical device, the method comprising:
- listening for the first and second telemetry types;
monitoring a voltage of a power source within the implantable medical device; and
if the voltage falls below a first threshold, discontinuing listening for the first telemetry type while continuing listening for the second telemetry type from the external charging component to permit charging of the power source.
2 Assignments
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Accused Products
Abstract
An implantable microstimulator configured for implantation beneath a patient'"'"'s skin for tissue stimulation to prevent and/or treat various disorders, uses a self-contained power source. Periodic or occasional replenishment of the power source is accomplished, for example, by inductive coupling with an external device. A bidirectional telemetry link allows the microstimulator to provide information regarding the system'"'"'s status, including the power source'"'"'s charge level, and stimulation parameter states. Processing circuitry automatically controls the applied stimulation pulses to match a set of programmed stimulation parameters established for a particular patient. The microstimulator preferably has a cylindrical hermetically sealed case having a length no greater than about 27 mm and a diameter no greater than about 3.3 mm. A reference electrode is located on one end of the case and an active electrode is located on the other end. The case is externally coated on selected areas with conductive and non-conductive materials.
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Citations
20 Claims
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1. A method for controlling an implantable medical device, the device having telemetry circuitry to receive both a first type of telemetry from a first external component and to receive a second type of telemetry from an external charging component, wherein the external charging component is used to wirelessly charge a power source in the implantable medical device, the method comprising:
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listening for the first and second telemetry types; monitoring a voltage of a power source within the implantable medical device; and if the voltage falls below a first threshold, discontinuing listening for the first telemetry type while continuing listening for the second telemetry type from the external charging component to permit charging of the power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable medical device for use with an external controller and an external charger, comprising:
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a rechargeable power source; a first telemetry circuitry, powered by the power source and adapted to receive a first type of telemetry from the external controller and transmit the first type of telemetry to the external controller; a second telemetry circuitry, powered by the power source and adapted to receive a second type of telemetry from the external charger to wirelessly charge the power source; and a voltage monitoring circuitry, adapted to disable the first telemetry circuitry if a voltage of the power source falls below a first threshold voltage. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification