System and methods for communicating between an implantable medical device and an external device

• US 9,680,970 B2
• Filed: 12/16/2013
• Issued: 06/13/2017
• Est. Priority Date: 12/16/2013
• Status: Active Grant

• Current Assignee: Pacesetter Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Pacesetter Incorporated (Abbott Laboratories Incorporated)
• Inventors: Wu, Yongjian, Yang, Jun, Shankar, Balakrishnan, Young, Chao-Wen, Shahandeh, Reza
• Primary Examiner(s): Koharski, Christopher D
• Assistant Examiner(s): Dinga, Roland
• Application Number:
  US14/108,125
• Publication Number:
  US 20150172423A1
• Time in Patent Office: 1,275 Days
• Field of Search: 607 32, 607 60, 128899
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A method is provided for a bridge device to interface between an external device and an implantable medical device (“IMD”), the bridge device includes a system on a chip (“SoC”) having a memory, an input/output interface, a standard wireless computer network (“SWCN”) controller and a bridge controller integrated into a single integrated circuit (“IC”). The method includes configuring the bridge controller to convert data between a Medical Implant Communication Service (MICS) protocol and a SWCN protocol, coupling a MICS controller to the SoC, and configuring the MICS controller to manage operation of a first transceiver based on the MICS protocol. The method includes configuring the SWCN controller to manage operation of a second transceiver based on the SWCN protocol, communicating between the bridge device and an IMD utilizing the first transceiver, and communicating between the bridge device and an external device utilizing the second transceiver.

Claims

1. A communications bridge to interface between an external device and an implantable medical device (IMD), the bridge comprising:

a first transceiver configured to communicate with the IMD utilizing a Medical Implant Communications Service (MICS) protocol;

a second transceiver configured to communicate with the external device utilizing a standardized wireless computer network (SWCN) protocol;

a MICS controller coupled to, and configured to manage operation of, the first transceiver based on the MICS protocol;

a SWCN controller coupled to, and configured to manage operation of, the second transceiver based on the SWCN protocol; and

a bridge microcontroller coupled to the MICS and SWCN controllers, the microcontroller configured to convert data between the MICS and SWCN protocols and to exchange the data to and from the MICS and SWCN controllers to provide a wireless bridge between the SWCN enabled external device and the IMD.

2. The communication bridge in claim 1, further comprising a serial peripheral interface (SPI) bus interface located between the MICS controller and the bridge microcontroller for conveying data to and from the MICS controller.

3. The communications bridge of claim 2, wherein the bridge microcontroller and MICS controller communicate over the SPI bus interface in a master and slave configuration.

4. The communication bridge in claim 1, wherein the bridge microcontroller and MICS controller operate in a master and slave configuration.

5. The communication bridge in claim 1, further comprising a housing that holds the first and second transceivers, MICS and SWCN controllers, and the bridge microcontroller, wherein the housing includes an attachment member configured to mechanically mount the communication bridge on the external device.

6. The communication bridge in claim 1, wherein the SWCN protocol is one of a Classic Bluetooth protocol, a Bluetooth Low Energy protocol, a ZigBee protocol, and a WiFi protocol.

7. The communication bridge in claim 1, wherein the MICS controller is further coupled to the second transceiver, the MICS controller and SWCN controller coordinating with one another such that at one point in time the second transceiver transmits data formatted based on the SWCN protocol and under control of the SWCN controller, and at a second point in time the second transceiver transmits data formatted based on the MICS protocol and under control of the MICS controller.

8. The communications bridge of claim 1, further comprising an integrated circuit (IC) that integrates memory, an input/output interface, the SWCN controller and the bridge microcontroller into a single system on a chip (SoC).

9. The communication bridge in claim 8, wherein the SoC includes an encryption circuit configured to perform encryption and decryption of the data transmitted and received by at least one of the first and second transceivers.

10. The communication bridge in claim 1, wherein the integrated circuit includes EEPROM memory.

11. The communications bridge of claim 1, wherein the MICS controller is configured to analyze incoming MICS data packets by comparing synchronization information within the MICS data packets with synchronization information stored in the memory.

12. The communications bridge of claim 1, wherein the MICS controller directs the SWCN controller to transmit a wake-up signal to the IMD from the second transceiver utilizing the SWCN protocol.

13. A method for providing a bridge device to interface between an external device and an implantable medical device (IMD), the bridge device including a system on a chip (SoC) having a memory, an input/output interface, a SWCN controller and a bridge controller integrated into a single integrated circuit (IC);

the method comprising;

configuring the bridge controller to convert data between a Medical Implant Communications Service (MICS) protocol and a standardized wireless computer network (SWCN) protocol;

coupling a MICS controller to the SoC, the MICS controller configured to manage operation of a first transceiver based on the MICS protocol;

configuring the SWCN controller to manage operation of a second transceiver based on the SWCN protocol;

communicating between the bridge device and an IMD utilizing the first transceiver; and

communicating between the bridge device and an external device utilizing the second transceiver.

14. The method in claim 13, further comprising configuring the bridge microcontroller and MICS controller to operate in a master and slave configuration.

15. The method in claim 13, wherein the SWCN protocol is one of a Classic Bluetooth protocol, a Bluetooth Low Energy protocol, a ZigBee protocol, and a WiFi protocol.

16. The method in claim 13, wherein the MICS controller is further coupled to the second transceiver, the MICS controller and SWCN controller coordinating with one another such that at one point in time the second transceiver transmits data formatted based on the SWCN protocol and under control of the SWCN controller, and at a second point in time the second transceiver transmits data formatted based on the MICS protocol and under control of the MICS controller.

17. The method in claim 13, wherein the SoC includes an encryption circuit configured to perform encryption and decryption of the data transmitted and received by at least one of the first and second transceivers.

18. The method in claim 13, wherein the integrated circuit includes EEPROM memory.

19. The method in claim 13, further comprising a housing that holds the first and second transceivers, MICS and SWCN controllers, and the bridge microcontroller, wherein the housing includes an attachment member configured to mechanically mount the bridge device on the external device.