System and method for transmitting energy to and establishing a communications network with one or more implanted devices

• US 7,471,986 B2
• Filed: 02/20/2004
• Issued: 12/30/2008
• Est. Priority Date: 02/20/2004
• Status: Expired due to Fees

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Hatlestad, John D.
• Primary Examiner(s): Layno; Carl H
• Assistant Examiner(s): PATEL, NATASHA
• Application Number:
  US10/783,285
• Publication Number:
  US 20050187594A1
• Time in Patent Office: 1,775 Days
• Field of Search: 607 60- 61, 607/30, 607 32- 34
• US Class Current: 607/61
• CPC Class Codes: A61N 1/3787 from an external energy source

Abstract

Systems and methods for automatically powering and communicating with an implantable medical device through an inductive link are disclosed. A preferred embodiment comprises an inductive coil or set of such coils. One coil may be mounted or installed on or near the bed of a patient as a component of a transmission module. Another coil may a component of an implantable medical device. The coils are energized by a resonant circuit to generate an electromagnetic field in the vicinity of the bedside. Without any action on the patient'"'"'s part, the implantable device receives the inductively transmitted energy to power its immediate operation or recharge its battery, thereby extending its longevity, potentially indefinitely. The inductive link also enables data transfer communication between the transmission module and implantable device. Some embodiments of a system disclosed herein also can be configured as a component of an Advanced Patient Management System that helps better monitor, predict and manage chronic diseases.

Claims

1. A system for transmitting energy to and communicating with a complementary implantable medical device, the system comprising a transmission module further comprising at least one energizable coil and adapted to automatically establish and control an inductive transfer link with the complementary implantable medical device comprising at least one energizable coil wherein the transmission module automatically initiates, without requiring user intervention, patient contact, or any alignment between the energizable coil and the implantable medical device, an inductive transfer of energy to the medical device to power the medical device, the automatic initiation based at least in part on the medical device coming within range of the transmission module, wherein the transmission module establishes a data transfer link with the medical device and wherein the inductive link powers the data link and wherein the inductive link powers at least one of:

(1) intracorporeal ultrasound transmitters and receivers for data communication between multiple implantable devices, or (2) a RF transmitter and receiver.

2. The system of claim 1, wherein the transmission module automatically establishes and controls the inductive link when the complementary implantable medical device is adjacent the transmission module.

3. The system of claim 1, wherein the transmission module automatically establishes and controls the inductive link when the complementary implantable medical device is adjacent the transmission module at night.

4. The system of claim 1, wherein the at least one coil of the transmission module is adjacent a patient'"'"'s bed such that the transmission module automatically establishes and controls the inductive link with the implantable medical device when the patient is in the patient'"'"'s bed.

5. The transmission module of claim 4, wherein the transmission module automatically establishes and controls the inductive link when the complementary implantable medical device is adjacent the bed at night and the patient is in the bed.

6. The transmission module of claim 1, wherein the at least one coil of the transmission module is configured to communicate with the at least one coil of the complementary implantable medical device at a location that is adjacent a patient'"'"'s mattress.

7. The system of claim 6, wherein the transmission module automatically establishes and controls the inductive link when the complementary implantable medical device is adjacent the mattress.

8. The system of claim 6, wherein the transmission module automatically establishes and controls the inductive link when the patient with a complementary implantable medical device is adjacent the mattress at night.

9. The system of claim 1, wherein the device includes a cardiac rhythm management device.

10. The system of claim 1, wherein the device comprises sensors that include at least two of EEG, EMG, EOG, MSNA, thoracic pressure, and hemodynamic pressure sensors.

11. The system of claim 10, wherein the sensors include sensors adapted to replicate the sensing of a sleep clinic study.

12. The system of claim 1, wherein the link includes a loosely coupled inductive link.

13. The system of claim 12, wherein the link is established when the transmission module is about 10 centimeters from the medical device.

14. The system of claim 12, wherein the link is established when the transmission module is less than 10 centimeters from the medical device.

15. The system of claim 14, wherein the link is established when the transmission module is about 4-8 centimeters from the medical device.

16. The system of claim 12, wherein the link is established when the transmission module is more than 10 centimeters from the medical device.

17. The system of claim 1, wherein the transmission module transfers energy to the medical device to power the device.

18. The system of claim 1, wherein the transmission module transfers energy to the implantable medical device to recharge a battery of the implantable medical device.

19. The system of claim 1, wherein the data link is a bi-directional data transfer link that is adapted to upload and download data.

20. The system of claim 1, wherein the transmission module establishes a data transfer link with a plurality of medical devices.

21. The system of claim 1, wherein the transmission module establishes a data transfer link with a centralized patient management system.

22. The system of claim 1, wherein the inductive link modulates the data link.

23. The system of claim 1, wherein the inductive link powers intracorporeal ultrasound transmitters and receivers for data communication between multiple implantable devices.

24. The system of claim 1, wherein the inductive link powers a RF transmitter and receiver.

25. The system of claim 24, wherein the RF transmitter and receiver comprises a Bluetooth®

RF transmitter and receiver.

26. The system of claim 24, wherein the transmission module comprises a RF transmitter and receiver.

27. The system of claim 24, wherein the implantable medical device comprises a RF transmitter and receiver.

28. The system of claim 24, wherein the transmission module and the implantable medical device comprise an RF transmitter and receiver.

29. A system for transmitting energy to and communicating with an implantable medical device, the system comprising a transmission module adapted to automatically establish and control an inductive transfer link with the implantable medical device, said module comprising at least one energizable coil, and said implantable medical device comprising at least one energizable coil, an energy storage device and memory to electronically store data, and wherein the transmission module is further adapted with memory to electronically store data.

30. The system of claim 29, wherein the transmission module transfers power to the implantable medical device and recharges the energy storage device.

31. The system of claim 29, wherein the transmission module establishes a data link with the implantable medical device.

32. The system of claim 29, wherein the transmission module establishes a data link with a plurality of implantable medical devices.

33. The system of claim 29, wherein the transmission module establishes a data link with a centralized patient management system.

34. The system of claim 29, wherein the transmission module establishes a bi-directional data link with the implantable medical device.

35. The system of claim 29, wherein the transmission module is further adapted to analyze data comprising biometric parameters.

36. A method of using the system for transmitting energy to and communicating with an implantable medical device, the system comprising a transmission module adapted to automatically establish and control an inductive transfer link with a complementary implantable medical device, said module comprising at least one energizable coil, and said medical device comprising at least one energizable coil, an energy storage device and memory to electronically store data, wherein the method comprises the steps of

a. bringing the implantable medical device within operational proximity to the transmission module;

b. automatically establishing an inductive transfer link between the implantable medical device and the transmission module;

c. regulating the inductive link;

d. transferring power to the implantable medical device;

e. transferring data to and from the implantable medical device; and

f. powering communication between the implantable medical device and a centralized patient management system.

37. The method of claim 36, wherein the method further comprises the step of recharging the energy storage device of the implantable medical device.

38. The method of claim 36, wherein the method further comprises the step of powering data transfer between a plurality of implantable medical devices.

39. The method of claim 36, wherein the method further comprises the step of analyzing data comprising biometric parameters.

40. A system for transmitting energy to and communicating with an implantable medical device, the system comprising a transmission module that establishes a data transfer link with the implantable medical device, the system further comprising at least one energizable coil and adapted to automatically establish and control an inductive transfer link with the implantable medical device comprising at least one energizable coil, wherein the transmission module automatically initiates, without requiring user intervention, an inductive transfer of energy to the medical device to power the implantable medical device, the automatic initiation based at least in part on the medical device coming within range of the transmission module, wherein the inductive link powers at least one of:

(1) intracorporeal ultrasound transmitters and receivers for data communication between multiple implantable devices, or (2) an RF transmitter and receiver.

41. The system of claim 40, wherein the link is a bi-directional data transfer link that is adapted to upload and download data.

42. The system of claim 40, wherein the transmission module establishes a data transfer link with a plurality of medical devices.

43. The system of claim 40, wherein the transmission module establishes a data transfer link with a centralized external patient management system.

44. The system of claim 40, wherein the inductive link modulates the data link.

45. The system of claim 40, wherein the inductive link powers the data link.

46. The system of claim 40, wherein the inductive link powers intracorporeal ultrasound transmitters and receivers for data communication between multiple implantable devices.

47. The system of claim 40, wherein the inductive link powers a RF transmitter and receiver.

48. The system of claim 40, wherein the RF transmitter and receiver comprises a Bluetooth®

RF transmitter and receiver.

49. The system of claim 40, wherein the transmission module comprises a RF transmitter and receiver.

50. The system of claim 40, wherein the implantable medical device comprises a RF transmitter and receiver.

51. The system of claim 40, wherein the transmission module and the implantable medical device comprises an RF transmitter and receiver.