Implantable pulse generator system and method for utilizing communication protocols

• US 7,440,805 B2
• Filed: 07/30/2003
• Issued: 10/21/2008
• Est. Priority Date: 07/30/2003
• Status: Expired due to Fees

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Bange, Joe, Holmquist, Paul J., Koshiol, Al
• Primary Examiner(s): Manuel; George
• Assistant Examiner(s): Flory; Christopher A.
• Application Number:
  US10/630,454
• Publication Number:
  US 20050027329A1
• Time in Patent Office: 1,910 Days
• Field of Search: 607/60, 607/59, 607/30, 607/32, 600/300
• US Class Current: 607/32
• CPC Class Codes: A61N 1/37254 Pacemaker or defibrillator security, e.g. to prevent or inhibit programming alterations by hackers or unauthorised individuals
• CPC Class Codes: A61N 1/37282 characterised by communication with experts in remote locations using a network

Abstract

An implantable pulse generator communicates with external devices such as device programmers and network repeaters to exchange data. The communication utilizes a communication protocol such that data is transferred in packets and transport control information is included for each of the packets. Network routing information may also be provided for each of the packets to establish additional capabilities including network addressing, priority control, or recipient validation. Information exchange instructions are executed by the implantable pulse generator to take data from one or more application programs being executed by the implantable pulse generator, divide the data into packets, and add the transport control information, and network routing information if desired, for outgoing packets. Additionally, the information exchange instructions may be executed by the implantable pulse generator to extract the network routing information if available and the transport control information from incoming packets and to reconstruct the data from the packets and provide the data to the one or more application programs.

Claims

1. A method comprising:

at an implantable pulse generator device for providing cardiovascular therapy to a patient, executing at least one application program that provides data that is to be exchanged from the implantable pulse generator to an external device and executing a set of information exchange instructions on the data obtained from the application program to;

divide the data into packets, and

apply header data to each packet that provides transport control information that controls the reconstruction of the application data from the data packets;

wirelessly transmitting from the implantable pulse generator device each of the packets having the header data;

receiving the packets at the external device; and

analyzing the transport control information of the header data of each received packet to reorder the data received in the packets, when the data in the packets is received out of sequence, to reconstruct the application data.

2. The method of claim 1, wherein the transport control information corresponds to a Transport Control Protocol (TCP) protocol.

3. The method of claim 1, wherein the transport control information corresponds to a User Datagram Protocol (UDP) protocol.

4. The method of claim 1, wherein the transport control information corresponds to a TCP for transactions (T/TCP) protocol.

5. The method of claim 1, wherein the set of information exchange instructions are further executed on the data obtained from the application program to:

apply header data to each packet that provides network routing information for each packet that specifies the intended receiving address for each packet.

6. The method of claim 5, further comprising:

receiving each of the packets at a device external to the patient; and

analyzing the network routing information of the header data of each received packet to determine where to route each of the packets for further transmission.

7. The method of claim 5, wherein the network routing information corresponds to the IPv4 protocol.

8. The method of claim 5, wherein the network routing information corresponds to the IPv6 protocol.

9. The method of claim 5, wherein the header data providing network routing information specifies a packet priority such that packets having a higher priority are wirelessly transmitted prior to packets with a lesser priority.

10. The method of claim 9, wherein the network routing information is IP and wherein the packet prioritization is specified in the precedence field.

11. The method of claim 5, further comprising:

at the implantable pulse generator device, executing the information exchange instructions to;

receive incoming data packets;

extract header data to obtain network routing information to detect that the data packet is addressed to the implantable pulse generator device; and

extract header data to obtain transport control information to determine how to reconstruct the data packets into data for the at least one application program.

12. The method of claim 1, wherein wirelessly transmitting each of the packets comprises transmitting each of the packets via an inductive coupling.

13. The method of claim 1, wherein wirelessly transmitting each of the packets comprises transmitting each of the packets via radio frequency.

14. The method of claim 1, including arbitrating to gain access to a physical link between the implantable device and the external device.

15. The method of claim 1, wherein analyzing the transport control information includes determining a socket for each packet when multiple sockets are established between the implantable pulse generator and the external device.

16. An implantable pulse generator device for providing cardiovascular therapy to a patient, comprising:

at least one processing device configured to execute at least one application program to control the generation of electrical stimulation to provide the cardiovascular therapy and to utilize application data received from an external device, the at least one processing device being further configured to execute a set of information exchange instructions to;

obtain incoming data packets, and

extract header data that provides transport control information from each of the incoming data packets to allow the application data to be reconstructed from the packets for use by the at least one application program, the reconstruction including analyzing the transport control information of the header data of each received packet to reorder the data received in the packets, when the data in the packets is received out of sequence, to reconstruct the application data;

a pulse generator in communication with the at least one processing device to generate electrical stimulation to provide the cardiovascular therapy; and

a receiver in communication with the at least one processing device to wirelessly receive the incoming data packets having the transport control information and provide the incoming data packets to the at least one processing device.

17. The implantable pulse generator device of claim 16, wherein the transport control information corresponds to a TCP protocol.

18. The implantable pulse generator device of claim 16, wherein the transport control information corresponds to a UDP protocol.

19. The implantable pulse generator device of claim 16, wherein the transport control information corresponds to a TCP for transactions protocol.

20. The implantable pulse generator device of claim 16, wherein the at least one processing device is further configured to extract header data that provides network routing information from each of the incoming data packets to determine that the incoming data packets are addressed to the implantable pulse generator device.

21. The implantable pulse generator device of claim 20, wherein the network routing information corresponds to the IPv4 protocol.

22. The implantable pulse generator device of claim 20, wherein the network routing information corresponds to the IPv6 protocol.

23. The implantable pulse generator device of claim 20, wherein the at least one processing device is further configured to execute the at least one application program to produce data to be exchanged, and wherein the processing device is further configured to execute the set of information exchange instructions to:

divide the data from the at least one application program into outgoing packets,

provide header data for each packet that provides transport control information to allow the data to be reconstructed from the outgoing packets, and

provide header data for each packet that provides network routing information that specifies the intended receiving address for each data packet.

24. The implantable pulse generator of claim 16, wherein wirelessly receiving each of the packets comprises receiving each of the packets via an inductive coupling.

25. The method of claim 16, wherein wirelessly receiving each of the packets comprises receiving each of the packets via radio frequency.

26. An implantable pulse generator device, comprising:

processing means for executing an application program and for executing information exchange means, wherein the information exchange means is for sending and receiving data packets with an external device and exchanging application data of the data packets with the application program, wherein the information exchange means comprises;

means for dividing outgoing data from the application program into outgoing packets and for reconstructing incoming application data from incoming data packets, and

means for adding transport control information to outgoing data packets and for extracting transport control information from incoming data packets, the transport control information permitting reordering of the application data received in the packets, when the application data in the packets is received out of sequence, to reconstruct the application data; and

means for providing electrical stimulation.

27. The implantable pulse generator device of claim 26, wherein the transport control information corresponds to the TCP protocol.

28. The implantable pulse generator device of claim 26, wherein the transport control information corresponds to the UDP protocol.

29. The implantable pulse generator device of claim 26, wherein the transport control information corresponds to the TCP for transactions protocol.

30. The implantable pulse generator device of claim 26, further comprising:

means for adding network routing information to outgoing data packets and for extracting network routing information from incoming data packets.

31. The implantable pulse generator device of claim 30, wherein the network routing information corresponds to the IPv4 protocol.

32. The implantable pulse generator device of claim 30, wherein the network routing information corresponds to the IPv6 protocol.

33. The implantable pulse generator device of claim 26, further comprising means for wirelessly transmitting and receiving the packets.

34. A method of transferring data between a data network and an implantable pulse generator utilizing transport layer connections to transfer data in packets wherein the data network has a wired connection to a repeater in proximity to the implantable pulse generator and wherein the repeater has a wireless connection to the implantable pulse generator, the method comprising:

establishing a first transport layer connection between the data network and the repeater over the wired connection;

establishing a different second transport layer connection between the repeater and the implantable pulse generator over the wireless connection;

transferring a first data packet with first transport control header information from the data network to the repeater over the first transport layer connection; and

transferring the first data packet with second transport control header information from the repeater to the implantable pulse generator over the second transport layer connection, wherein the first and second transport control header information includes information as to how application data may be reconstructed from the data packets and to reorder the data received in the packets to reconstruct the application data when the data in the packets is received out of sequence.

35. The method of claim 34, further comprising:

transferring a second data packet from the implantable pulse generator to the repeater over the second transport layer connection; and

transferring the second data packet from the repeater to the data network over the first transport layer connection.

36. The method of claim 34, wherein the first and second transport layer connections are TCP connections, and wherein the second transport layer connection has a shorter re-transmission timeout than the first transport layer connection.

37. The method of claim 34, further comprising establishing a first network layer connection over the wired connection between the data network and the repeater to support the first transport layer connection and establishing a first network layer connection over the wireless connection between the repeater and the implantable pulse generator to support the second transport layer connection.

38. A system for transferring health care data, comprising:

a data network;

an implantable pulse generator; and

a repeater located in proximity to the implantable pulse generator, wherein the repeater has a wired connection to the data network and a wireless connection to the implantable pulse generator, and wherein a first transport layer connection is established between the repeater and the data network and a different second transport layer connection is established between the repeater and the implantable pulse generator such that data packets traverse both the first transport layer connection and the second transport layer connection when passing between the data network and the implantable pulse generator, wherein a transport layer connection uses a transport layer protocol, and

wherein data packets sent from the implantable pulse generator include transport control information in a header of each data packet, wherein the transport control information includes information as to how application data may be reconstructed by an endpoint on the data network and as to reordering of the data received in the packets to reconstruct the application data when the data in the packets is received out of sequence at the endpoint.

39. The system of claim 38, wherein the first transport layer connection has a longer re-transmission timeout than the second transport layer connection.

40. The system of claim 38, wherein the first transport layer connection and the second transport layer connection are TCP.