System and apparatus for controlled activation of acute use medical devices
First Claim
1. An implantable medical device comprising:
- a power source;
a therapy unit;
a switching circuit comprising a gate circuit, wherein the gate circuit is configured to gate power from the power source to the therapy unit, wherein the switching circuit is responsive to a pre-determined condition external to the implantable medical device that is indicative of an activation condition of the implantable medical device such that the gate circuit gates power to the therapy unit; and
feedback circuitry configured to provide an input to the switching circuit indicative of one or more conditions for discontinuing the gating of power to the therapy unit, wherein the switching circuit is further configured to discontinue gating of power to the therapy unit based thereon.
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Accused Products
Abstract
An integrated activation system for an implantable medical device (IMD) sharing a power source, the activation system comprising a switching circuit having first and second inputs and having an output coupled to the acute use device, a gating element coupled to the first input and configured to gate power from the power source to the switching circuit, and a sensing element coupled to the second input of the switching circuit. The sensing element is configured to sense an activation condition, enable an operation interval of the switching circuit, and transmit a signal to the switching circuit during the activation condition. The switching circuit is configured to transmit power to the acute use device upon receipt of a pre-determined number of signals from the sensing element.
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Citations
20 Claims
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1. An implantable medical device comprising:
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a power source; a therapy unit; a switching circuit comprising a gate circuit, wherein the gate circuit is configured to gate power from the power source to the therapy unit, wherein the switching circuit is responsive to a pre-determined condition external to the implantable medical device that is indicative of an activation condition of the implantable medical device such that the gate circuit gates power to the therapy unit; and feedback circuitry configured to provide an input to the switching circuit indicative of one or more conditions for discontinuing the gating of power to the therapy unit, wherein the switching circuit is further configured to discontinue gating of power to the therapy unit based thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An implantable medical device comprising:
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a power source; a therapy unit comprising at least one of a sensor device and a stimulator; a switching circuit comprising a gate circuit, wherein the gate circuit is configured to gate power from the power source to the therapy unit, wherein the switching circuit is configured to be responsive to at least one of a predetermined RF signal or predetermined magnetic field external to the implantable medical device that is indicative of an activation condition of the implantable medical device such that the gate circuit gates power to at least one of the sensor device and the stimulator of the therapy unit, wherein the switching circuit is configured to be responsive to one or more conditions sensed by feedback circuitry indicative of one or more conditions for discontinuing the gating of power to the at least one of the sensor device and the stimulator of the therapy unit, and further wherein the switching circuit is configured to discontinue gating of power to the therapy unit based on the one or more conditions sensed by the feedback circuitry. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification