Implantable pulse generator systems and methods for providing functional and/or therapeutic stimulation of muscles and/or nerves and/or central nervous system tissue
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-001/378
A61N-001/36
A61N-001/372
A61N-001/375
A61N-001/05
출원번호
US-0517213
(2006-09-07)
등록번호
US-9308382
(2016-04-12)
발명자
/ 주소
Strother, Robert B.
Thrope, Geoffrey B.
Pack, Danny R.
출원인 / 주소
MEDTRONIC URINARY SOLUTIONS, INC.
대리인 / 주소
Shumaker & Sieffert, P.A.
인용정보
피인용 횟수 :
2인용 특허 :
201
초록▼
Improved assemblies, systems, and methods provide a stimulation system for prosthetic or therapeutic stimulation of muscles, nerves, or central nervous system tissue, or any combination. The stimulation system includes an implantable pulse generator and a lead sized and configured to be implanted su
Improved assemblies, systems, and methods provide a stimulation system for prosthetic or therapeutic stimulation of muscles, nerves, or central nervous system tissue, or any combination. The stimulation system includes an implantable pulse generator and a lead sized and configured to be implanted subcutaneously in a tissue region. An external controller includes circuitry adapted for wireless telemetry and a charging coil for generating the radio frequency magnetic field to transcutaneously recharge a rechargeable battery in the pulse generator. Using wireless telemetry, the pulse generator is adapted to transmit status information back to the external controller to allow the external controller to automatically adjust up or down the magnitude of the radio frequency magnetic field and/or to instruct a user to reposition the charging coil, the status information adapted to allow optimal recharging of the pulse generator rechargeable battery.
대표청구항▼
1. A system comprising: an implantable electrical stimulation generator comprising: a housing,first circuitry carried within the housing and configured for wireless telemetry using at least one of UHF signals and VHF signals,an antenna coupled to the first circuitry and configured to at least one of
1. A system comprising: an implantable electrical stimulation generator comprising: a housing,first circuitry carried within the housing and configured for wireless telemetry using at least one of UHF signals and VHF signals,an antenna coupled to the first circuitry and configured to at least one of receive or transmit the at least one of UHF signals and VHF signals of the wireless telemetry,a rechargeable battery carried within the housing, anda power receiving coil carried within the housing, the power receiving coil configured to transcutaneously receive an externally generated radio frequency magnetic field to recharge the rechargeable battery;an external controller including second circuitry; anda charging coil coupled to the second circuitry for generating the radio frequency magnetic field to transcutaneously recharge the rechargeable battery via the second circuitry of the external programmer,wherein the second circuitry of the external controller is configured to communicate with the antenna and first circuitry of the implantable electrical stimulation generator via wireless telemetry using at least one of the UHF signals and the VHF signals,wherein, during a battery recharge period, and using the wireless telemetry, the implantable electrical signal generator is configured to transmit status information to the external controller to allow the external controller to at least one of automatically adjust the magnitude of the radio frequency magnetic field or generate an instruction to a user to reposition the charging coil, andwherein the adjustment of the magnitude of the radio frequency magnetic field comprises an adjustment of up to about 300 percent of the initial magnitude. 2. The system according to claim 1, wherein the status information includes an indication of the battery charge status and an indication of the magnitude of power recovered by the receive coil. 3. The system according to claim 1, wherein the status information includes a magnitude of the battery voltage and a magnitude of a DC voltage recovered from the radio frequency magnetic field. 4. The system according to claim 1, wherein the implantable electrical stimulation generator is configured to function as a wireless telemetry communications slave, wherein the external controller initiates substantially all wireless telemetry communications between the external controller and the implantable electrical signal generator. 5. The system according to claim 1, wherein the charging coil is coupled to the external controller via at least a cable. 6. The system according to claim 1, wherein the radio frequency magnetic field comprises a frequency between about 30 KHz and about 300 KHz. 7. The system according to claim 1, wherein the second circuitry of the external controller and the first circuitry of the implantable electrical stimulation generator communicate using signals in the MICS (Medical Implant Communications Service) band between about 402 MHz and about 405 MHz. 8. The system according to claim 1, wherein an outside diameter of the charging coil is between about 40 millimeters and about 70 millimeters, and a thickness of the charging coil as measured perpendicular to the diameter of the charging coil is between about three millimeters and about eleven millimeters. 9. The system according to claim 1, wherein, during a battery recharge period, the charging coil maintains a temperature at or below about 41 degrees Celsius. 10. The system according to claim 1, wherein the rechargeable battery has a capacity of at least 30 mA-hr, and wherein recharging of the rechargeable battery is required less than weekly. 11. The system according to claim 1, wherein the transcutaneously applied radio frequency magnetic field fully recharges the rechargeable battery in a time period of not more than six hours. 12. The system according to claim 1, wherein a thickness of the implantable electrical stimulation generator housing is between about 5 mm and 15 mm, a width of the implantable electrical stimulation generator housing is between about 30 mm and 60 mm, and a length of the implantable electrical stimulation generator housing is between about 45 mm and 60 mm. 13. The system according to claim 1, wherein an outer surface of the housing of the implantable electrical stimulation generator maintains a two degrees Celsius or less temperature rise during a battery recharge period. 14. The system according to claim 1, wherein the implantable electrical stimulation generator is configured to be implanted in subcutaneous tissue at an implant depth of between about five millimeters and about twenty millimeters. 15. The system according to claim 1, wherein the first circuitry of the implantable electrical stimulation generator includes a transceiver chip configured to communicate with the second circuitry of the external controller via the wireless telemetry, and wherein the transceiver chip is pulsed on periodically to search for a communication from the external controller. 16. The system according to claim 15, wherein the transceiver chip is configured to be off about 99% or more of the time. 17. The system according to claim 1, wherein, using the wireless telemetry, the external controller communicates with the implantable electrical stimulation generator at timed intervals to confirm that the radio frequency magnetic field is adequate for recharging the rechargeable battery. 18. The system according to claim 1, wherein the first circuitry of the implantable electrical stimulation generator further includes power management circuitry, wherein the power management circuitry is configured to instruct the implantable electrical stimulation generator to enter at least one operating mode, wherein the at least one operating mode includes at least one of an active mode, an dormant mode, and an active and charging mode. 19. The system according to claim 1, wherein the instruction to the user comprises at least one of a visual instruction or an audio instruction. 20. The system according to claim 1, wherein the first circuitry is configured to convert a serial data stream into a pulsing carrier signal during a transmit process, and wherein the first circuitry is configured to convert a varying radio frequency signal strength into a serial data stream during a receive process. 21. The system according to claim 1, wherein the external controller comprises a rechargeable battery coupled to the second circuitry to supply power for generating the radio frequency magnetic field, andwherein, during a rechargeable battery recharge period for recharging the rechargeable battery of the implantable electrical stimulation generator, the external controller is adapted to be carried by a user with no connection to an external power main. 22. The system of claim 1, wherein the implantable electrical stimulation generator is configured to communicate with the external controller using the wireless telemetry to instruct the external controller to increase or decrease the strength of the magnetic field during recharging, while at the same time, the implantable electrical stimulation generator is configured to receive the radio frequency magnetic field to recharge the rechargeable battery. 23. The system of claim 1, wherein the antenna is carried within the housing of the implantable electrical stimulation generator.
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