Self-cooling transcutaneous energy transfer system for battery powered implantable device
First Claim
1. A transcutaneous energy transfer system for transferring energy to an implantable medical device, comprising:
- a housing having a lower surface and a base for supporting the housing above a patient'"'"'s skin and thereby defining a space between the lower surface and the patient'"'"'s skin;
an induction coil disposed in the housing for transferring energy to the implantable medical device; and
an electric fan coupled to the housing for moving air through the space.
2 Assignments
0 Petitions
Accused Products
Abstract
A self-cooling transcutaneous energy transfer system is provided for transmitting power to an implantable medical device, such as a defibrillator. The system includes a housing that is supported above the human body by a base so as to define a space between the housing and the body. A primary induction coil is disposed within the housing for transferring electromagnetic energy to the implantable medical device. A cooling fan is attached to the housing for providing forced convective heat transfer from the body. Various power and control circuitry are provided. The system can transfer away heat generated by eddy currents induced in the implantable device by the magnetic flux produced by the induction coil.
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Citations
18 Claims
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1. A transcutaneous energy transfer system for transferring energy to an implantable medical device, comprising:
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a housing having a lower surface and a base for supporting the housing above a patient'"'"'s skin and thereby defining a space between the lower surface and the patient'"'"'s skin; an induction coil disposed in the housing for transferring energy to the implantable medical device; and an electric fan coupled to the housing for moving air through the space. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A transcutaneous energy transfer system for transferring energy to an implantable medical device, comprising:
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a housing having a lower surface and a base for supporting the housing above a patient'"'"'s skin and thereby defining a space between the lower surface and the patient'"'"'s skin; an induction coil disposed in the housing for transferring energy to the implantable medical device; a controller coupled to the induction coil for controlling power supplied to the induction coil; an electric fan coupled to the housing for moving air through the space; and a regulator for controlling the operation of the electric fan in response to the temperature of the implantable device. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A recharger for transcutaneously recharging a battery in an implantable medical device, comprising:
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a housing having an annular chamber, an upper surface, a lower surface, a passage extending from the upper surface to the lower surface and being substantially concentric with the annular chamber, and a base for supporting the housing above a patient'"'"'s skin and thereby defining a space between the lower surface and the patient'"'"'s skin; an induction coil encased within the annular chamber for transferring energy to the battery; an electric fan coupled to the housing and being disposed within the passage for moving air through the space; a controller coupled to the induction coil for controlling power supplied to the induction coil; and a regulator for controlling the operation of the electric fan in response to the temperature of the implantable device. - View Dependent Claims (15, 16, 17, 18)
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Specification