Implantable electrostimulator for improving blood flow
First Claim
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1. Apparatus, comprising:
- an electrostimulator-implant, percutaneously advanceable into tissue of a limb of a subject, and comprising;
a temperature sensor, configured to detect a temperature of the tissue;
an electrode disposed at an outer surface of the implant;
an antenna, configured to wirelessly receive power; and
circuitry, powered by the received power, and configured to drive the electrode to apply a bloodflow-increasing current to the tissue at least in part responsively to the detected temperature; and
an extracorporeal device, attachable to the limb, and configured to wirelessly transmit the power received by the antenna,wherein;
the extracorporeal device is configured to alternate between a first mode and a second mode,in the first mode, the extracorporeal device is configured to wirelessly drive the circuitry to drive the electrode to apply the bloodflow-increasing current at a frequency of 1-100 Hz, andin the second mode, the extracorporeal device is configured to wirelessly drive the circuitry to apply a second electrical current having a frequency of 1-10 kHz.
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Abstract
An electrostimulator implant is percutaneously advanceable into tissue of a limb of a subject. The implant comprises (i) an intracorporeal sensor, configured to detect a factor indicative of local blood supply in the tissue of the limb; (ii) an electrode disposed at an outer surface of the implant; (iii) an antenna, configured to wirelessly receive power; and (iv) circuitry, powered by the received power, and configured to drive the electrode to apply a bloodflow-increasing current to the tissue at least in part responsively to the detected factor. Other embodiments are also described.
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Citations
6 Claims
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1. Apparatus, comprising:
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an electrostimulator-implant, percutaneously advanceable into tissue of a limb of a subject, and comprising; a temperature sensor, configured to detect a temperature of the tissue; an electrode disposed at an outer surface of the implant; an antenna, configured to wirelessly receive power; and circuitry, powered by the received power, and configured to drive the electrode to apply a bloodflow-increasing current to the tissue at least in part responsively to the detected temperature; and an extracorporeal device, attachable to the limb, and configured to wirelessly transmit the power received by the antenna, wherein; the extracorporeal device is configured to alternate between a first mode and a second mode, in the first mode, the extracorporeal device is configured to wirelessly drive the circuitry to drive the electrode to apply the bloodflow-increasing current at a frequency of 1-100 Hz, and in the second mode, the extracorporeal device is configured to wirelessly drive the circuitry to apply a second electrical current having a frequency of 1-10 kHz. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification