Transcutaneous energy transfer module with integrated conversion circuitry
First Claim
1. An implantable transcutaneous energy transfer device secondary coil module for receiving and conditioning power from a time-varying magnetic field provided by a transcutaneous energy transfer primary coil, comprising:
- an inner housing having an inductive heat reducing means comprising a magnetically permeable material;
a transcutaneous energy transfer secondary coil disposed outside of and surrounding the housing configured to receive the time-varying magnetic field provided by the transcutaneous energy transfer primary coil and convert the time-varying magnetic field into a high voltage, alternating current electric signal within the coil;
power conditioning circuitry mounted within the housing and electrically coupled to the secondary coil, the power conditioning circuitry including electronics for converting the alternating current electric signal from the secondary coil having a high voltage greater than or equal to about 200 volts into a direct current electric signal having a low voltage of less than or equal to about 50 volts and a high power level of greater than or equal to about 15 watts;
a low voltage, high power output means electrically coupled to the power conditioning circuitry and accessible from outside the module for connecting the secondary coil module to a power bus for delivering power to implanted devices.
1 Assignment
0 Petitions
Accused Products
Abstract
An implantable transcutaneous energy transfer device secondary coil module includes a housing, a secondary coil, power conditioning circuitry, and a low voltage, high power connector. The transcutaneous energy transfer secondary coil is disposed outside the housing and is configured to receive a time-varying magnetic field provided by a transcutaneous energy transfer primary coil, and to convert the time-varying magnetic field into a high voltage, alternating current electric signal within the coil. The power conditioning circuitry is mounted within the housing and is electrically coupled to the secondary coil. The power conditioning circuitry including electronics for converting the high voltage, alternating current electric signal from the secondary coil into a high power, low voltage direct current electric signal. The low voltage, high power connector electrically coupled to the power conditioning circuitry and extending outside the housing for connecting the secondary coil module to a power bus for delivering power to implanted devices.
101 Citations
39 Claims
-
1. An implantable transcutaneous energy transfer device secondary coil module for receiving and conditioning power from a time-varying magnetic field provided by a transcutaneous energy transfer primary coil, comprising:
-
an inner housing having an inductive heat reducing means comprising a magnetically permeable material; a transcutaneous energy transfer secondary coil disposed outside of and surrounding the housing configured to receive the time-varying magnetic field provided by the transcutaneous energy transfer primary coil and convert the time-varying magnetic field into a high voltage, alternating current electric signal within the coil; power conditioning circuitry mounted within the housing and electrically coupled to the secondary coil, the power conditioning circuitry including electronics for converting the alternating current electric signal from the secondary coil having a high voltage greater than or equal to about 200 volts into a direct current electric signal having a low voltage of less than or equal to about 50 volts and a high power level of greater than or equal to about 15 watts; a low voltage, high power output means electrically coupled to the power conditioning circuitry and accessible from outside the module for connecting the secondary coil module to a power bus for delivering power to implanted devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An implantable transcutaneous energy transfer device secondary coil module for receiving a time-varying magnetic field from a transcutaneous energy transfer primary coil and converting the time-varying magnetic field to a low voltage output, comprising:
-
an inner housing having an inductive heat reducing means; a transcutaneous energy transfer secondary coil disposed outside the housing configured to receive a time-varying magnetic field provided by a transcutaneous energy transfer primary coil and convert the time-varying magnetic field into a high voltage, alternating current electric signal within the coil; power conditioning circuitry mounted within the housing and electrically coupled to the secondary coil, the power conditioning circuitry including electronics for converting the alternating current signal from the secondary coil having a high voltage greater than or equal to about 200 volts into a direct current electric signal having a low voltage of less than or equal to about 50 volts and a high power level of greater than or equal to about 15 watts; a low voltage, high power output means electrically coupled to the power conditioning circuitry and accessible from outside the module for connecting the secondary coil module to a power bus for delivering power to implanted devices; wherein the secondary coil is disposed so as to surround the housing. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A transcutaneous energy transfer system, comprising:
-
a transcutaneous energy transfer primary coil adapted to be placed outside a patient for providing a time-varying magnetic field that passes into the patient; a transcutaneous energy transfer device secondary coil module adapted to be implanted within the time-varying magnetic field within the patient provided by the primary coil for receiving and conditioning power from the time-varying magnetic field, the secondary coil module comprising; an inner housing including an inductive heat reducing means; a transcutaneous energy transfer secondary coil disposed outside the housing and configured to receive the time-varying magnetic field provided by the transcutaneous energy transfer primary coil and convert the time-varying magnetic field into a high voltage, alternating current electric signal within the coil; power conditioning circuitry mounted within the housing and electrically coupled to the secondary coil, the power conditioning circuitry including electronics for converting the high voltage, alternating current electric signal from the secondary coil into a high power, low voltage direct current electric signal; an output line electrically coupled to the power conditioning circuitry and accessible from outside the module to transmit the high power, low voltage direct current electric signal outside of the module; an implantable power bus connected to the output line; and a high power, implantable blood pump electrically coupled to the power bus; wherein the inductive heat reducing means includes the inner housing comprising a cage formed of magnetically permeable material; and the system further comprising a heat distribution layer provided externally to the module and a thermally conductive medium providing thermal conduction between the cage and the heat distribution layer. - View Dependent Claims (27)
-
-
28. A transcutaneous energy transfer system, comprising:
-
a transcutaneous energy transfer primary coil adapted to be placed outside a patient for providing a time-varying magnetic field that passes into the patient; a transcutaneous energy transfer device secondary coil module ada be implanted within the time-varying magnetic field within the patient provided by the primary coil for receiving and conditioning power from the time-varying magnetic field, the secondary coil module comprising; an inner housing including an inductive heat reducing means; a transcutaneous energy transfer secondary coil disposed outside the housing and configured to receive the time-varying magnetic field provided by the transcutaneous energy transfer primary coil and convert the time-varying magnetic field into a high voltage, alternating current electric signal within the coil; power conditioning circuitry mounted within the housing and electrically coupled to the secondary coil, the power conditioning circuitry including electronics for converting the high voltage, alternating current electric signal from the secondary coil into a high power, low voltage direct current electric signal; an output line electrically coupled to the power conditioning circuitry and accessible from outside the module to transmit the high power, low voltage direct current electric signal outside of the module; an implantable power bus connected to the output line; and a high power, implantable blood pump electrically coupled to the power bus; wherein the secondary coil is disposed so as to surround the housing. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
-
Specification