Embedded neural prosthesis

• US 20070239211A1
• Filed: 03/31/2006
• Published: 10/11/2007
• Est. Priority Date: 03/31/2006
• Status: Abandoned Application

• Current Assignee: Andras Lorincz, Attila Meretei, Zsolt Palolai
• Original Assignee: Andras Lorincz, Attila Meretei, Zsolt Palolai
• Inventors: Meretei, Attila, Lorincz, Andras, Palolai, Zsolt
• Application Number:
  US11/394,520
• Publication Number:
  US 20070239211A1
• Time in Patent Office: Days
• US Class Current: 607/2
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61N 1/37288 Communication to several implantable medical devices within one patient

Abstract

A neural prosthesis comprised of a network of component devices that sense, analyze, and communicate data to deliver a therapeutic effect to a patient. The network of component devices establish systems and methods for sensing physiological parameters in, on or around a human body and achieving a therapeutic effect based thereon. A network of various levels of component devices sense, process and communicate data between corresponding component devices, and self-organize into a hierarchy of peer groups of component devices to perform the task or function of the therapeutic effect upon completion of the tasks or functions of the various underlying levels of component devices. An overall Peer Group encompasses the various underlying levels of peer groups having the component devices therein. The sensing, computational, data distribution, communication or therapeutic effect tasks at the various levels are accomplished by the coordination of communication and functions between the plurality of relatively simple component devices of the network. Symmetric and asymmetric cryptography and other communication protocols are used to co-ordinate the tasks and functions of the component devices of the network. Therapeutic tasks such as drug delivery, executable actions, and stimuli delivery or suppression are thus efficiently distributed to a patient via the network. Component peer devices of the network can be implants, wearable devices with respect to a patient, or may be devices that are in the environment within which the patient is located.

Claims

1. An embedded neural prosthesis, comprising:

two or more component devices comprising a network of devices, each device having one or more functions as a sensor, communicator, computer, data distributor, energy source, or therapeutic effector, and self-organizing into a hierarchy of various levels of devices within the network,

the devices being implanted in the human body, placed on the human body, placed in the environment within which the human body is located, or distributed in any combination thereof,

at least one of a direct communication link between the devices via cryptography and communication protocols or an indirect communication link between the devices via intermediate devices,

each of the devices containing data, algorithms and protocols to perform at least one of the following functions;

sense physiologic parameters

process data distributed in the system

exchange, modify, reconfigure data, algorithms, and protocols in the prosthesis

autonomously allocate data storage, computational, communication, energy supply, sensory and therapeutic tasks among the devices in the prosthesis,

wherein the therapeutic effector delivers an intended therapeutic effect upon completion of tasks or functions of underlying levels of devices of the network.

2. The prosthesis of claim 1, wherein the intended therapeutic effect is any of mechanical assistance, electrical stimulation, chemical stimulation, actuation, drug delivery and suppression.

3. A neural prosthesis comprising:

a hierarchical network of various levels of self-organizing devices provided in, on or about a patient and having anonymous and accountable communication capabilities, each device further having at least one task allocated thereto, the network providing a therapeutic effect that repairs, replaces or restores neural functions upon completion of the allocated tasks at the various levels of the self-organizing devices.

4. The prosthesis of claim 3, wherein the tasks are any of sensing physiological data, computing data, distributing data, communicating, managing energy, task allocation and scheduling, and delivering a therapeutic effect.

5. The prosthesis of claim 4, wherein the communication capabilities include direct symmetric and asymmetric cryptography between devices, indirect communication via intermediate devices, and pipeline protocols.

6. An embedded neural prosthesis comprising:

a network for delivering a therapeutic effect to a patient, the network comprised of self-organizing component devices arranged hierarchically at various levels of peer groups to form one or more overall Peer Group, each overall Peer Group having a task or function to perform upon completion of underlying tasks or functions of the various levels of peer groups of the component devices comprising a respective Peer Group, such that completion of the tasks of functions of each Peer Group results in the network delivering the therapeutic effect that repairs, replaces or restores neural functions;

in-range communication links between those of the component devices within a pre-determined communication range; and

out-of-range communication links between those component devices beyond the pre-determined communication range.

7. The prosthesis of claim 6, wherein the therapeutic effect is any of mechanical assistance, electrical stimulation, chemical stimulation, actuation, drug delivery and suppression.

8. The prosthesis of claim 7, wherein each of the component devices includes data, algorithms or protocols enabling at least one task or function of sensing physiological data, computing data, distributing data, communication, task allocation and scheduling, and delivering of the therapeutic effect.

9. The prosthesis of claim 8, wherein the in-range communication links further comprise symmetric and asymmetric cryptography.

10. The prosthesis of claim 9, wherein the asymmetric cryptography establishes trust between component devices, and the symmetric cryptography authorizes communication between trusted ones of the component devices.

11. The prosthesis of claim 9, wherein the out-of-range communication includes communication via intermediate component devices and pipeline protocols.

12. The prosthesis of claim 11, wherein the various levels of hierarchically arranged component devices execute prioritized tasks or functions and update relationships between component devices to accommodate delivery of the therapeutic effect by the network upon completion of underlying tasks and functions.

13. The prosthesis of claim 12, wherein each of the in-range communication links further comprise a channel, wherein communications between two or more of the component devices are scheduled to avoid communication interference by assigning the communications between the in-range component devices to a same channel.

14. The prosthesis of claim 13, wherein task allocation among the component devices is prioritized according to the efficiency of the component device to which a respective task is allocated.

15. The prosthesis of claim 6, further comprising a series of component devices within a respective Peer Group.

16. The prosthesis of claim 15, further comprising at least one common task or function between at least two component devices within a Peer Group.

17. The prosthesis of claim 16, wherein a Peer Group performs its task or function upon completion of the tasks or functions of the various underlying levels of peer groups of component devices comprising the Peer Group.

18. The prosthesis of claim 6, further comprising one-time tasks or functions such that the various levels of peer groups of component devices authorize a succeeding level or component device to perform its task or function upon completion of a preceding one of the one-time tasks or functions.

19. The prosthesis of claim 6, further comprising repeatable tasks or functions such that the various levels of the component devices include pipeline communications between some or all of the component devices to permit ongoing processing of one of the repeatable tasks or functions even as another of the repeatable tasks or functions is initiated.

20. The prosthesis of claim 19, wherein the network re-organizes the various levels of the component devices within a respective peer group according to changes in the component devices in the respective peer group or according to changes in the task or function requirements.

21. The prosthesis of claim 20, wherein the various levels of the component devices update one another upon completion of a task or function, upon performance failure of any of the component devices, or upon addition or deletion of component devices to the network.

22. The prosthesis of claim 6, wherein the communication links are wireless.

23. The prosthesis of claim 22, wherein the data communicated by the component devices comprises information having virtual identifiers embedded therein.

24. The prosthesis of claim 23, wherein the component devices further comprise an accountability aspect in the cryptography or other protocols used within the network.

25. The prosthesis of claim 6, further comprising a manager device from among the component devices at each respective peer group level, the manager device continuously evaluating the reliability of the component devices comprising the respective peer groups to ensure that underlying levels of tasks or functions are reliably and timely executed.

26. The prosthesis of claim 6, wherein the component devices comprising a peer group are organized and authorized to execute an intended task or function corresponding to a respective peer group upon an accepted response to an advertisement describing the intended task, function or resource requirements for performing said task or function.

27. A method of replacing, repairing or restoring neural function to a patient, comprising:

placing a network of two or more component devices in, on or about the patient, each component device performing at least one of sensing, computing data, distributing data, communicating, task allocating and scheduling, and delivery of a therapeutic effect;

hierarchically arranging the network of two or more component devices into various levels of peer groups, the various levels of peer groups and component devices comprising an overall Peer Group and each peer group level assigned a task or function to execute;

communicating the completion of underlying tasks or functions from one peer group level to a successor peer group level until all peer group levels have executed their assigned tasks or functions, thereby resulting in the overall Peer Group having delivered the intended therapeutic effect to the patient.

28. The method of claim 27, wherein the therapeutic effect is any of mechanical assistance, electrical stimulation, chemical stimulation, actuation, drug delivery and suppression that helps repair, replace or restore neural functions.

29. The method of claim 28, wherein the task or function of a respective peer group level is directly performed by component devices authorized to comprise the respective peer group.

30. The method of claim 28, wherein the task or function of a respective peer group level is decomposed into smaller tasks or functions resulting in the formation of another level of peer group comprised of additional component devices, wherein the additional peer group level'"'"'s task or function is executed prior to execution of the originating respective peer group level.

31. The method of claim 29, wherein each peer group level is formed by responding to an advertisement describing the task or function to be performed by the respective peer group level such that the most reliable component devices for performing the advertised task or function comprise the peer group.

32. The method of claim 30, wherein each peer group level is formed by responding to an advertisement describing the task or function to be performed by the respective peer group level such that the most reliable component devices for performing the advertised task or function comprise the peer group.

33. The method of claim 31, further comprising designating a manager device from among the component devices comprising a respective peer group level, the manager device continuously evaluating the reliability of the component devices in said respective peer group level and changing or adding component devices thereto to maintain said reliability.

34. The method of claim 32, further comprising designating a manager device from among the component devices comprising a respective peer group level, the manager device continuously evaluating the reliability of the component devices in said respective peer group level and changing or adding component devices thereto to maintain said reliability.

35. An embedded neural prosthesis comprising:

a network of hierarchically arranged peer groups, the peer groups comprised of component devices arranged in, on or about a patient, the component devices configured to self-organize to accomplish various levels of tasks or functions.

36. The prosthesis of claim 35, wherein at least one of the component devices is a therapeutic device, at least one of the component devices is a sensory device, and at least one of the component devices is a computational device.

37. The prosthesis of claim 36, wherein each component device is configured to communicate with at least one other component device.

38. The prosthesis of claim 37, wherein the at least one therapeutic devices is configured to stimulate or depress a function of certain components of the nervous system in response to information received, analyzed and communicated thereto from the at least one sensory device and the at least one computational device.

39. The prosthesis of claim 37, further comprising a direct input component device configured to receive input directly from at least one of the patient or a caregiver.

40. The prosthesis of claim 39, wherein the direct input is in addition to physiological and environmental parameters otherwise sensed by the component devices of the prosthesis.

41. The prosthesis of claim 40, wherein the physiological parameters comprise at least one of body temperature, skin impedance, moisture, musculo-skeletal movements, blood flow, breathing patterns, and heart rate.

42. The prosthesis of claim 35, wherein the component devices are configured to perform active communication powered by onboard energy sources.

43. The prosthesis of claim 35, wherein the component devices are configured to perform passive communication that does not require onboard power.

44. The prosthesis of claim 36, wherein at least some of the component devices are configured to perform sensing, computing, therapeutic and communication functions, whereas others of the component devices are configured to perform only some of the sensing, computing, therapeutic and communication functions.

45. The prosthesis of claim 35, wherein the various levels of component devices are configured to repeatedly measure data, compute the data, communicate the computed data among the component devices, and react to the communicated data in order to provide a therapeutic effect that repairs, replaces or restores neural function.

46. The prosthesis of claim 45, wherein the component devices are configured to self-organize and adapt to changing physiological and environmental parameters and to changing availability of the component devices.

47. A method of monitoring physiological and environmental parameters and adjusting a therapeutic effect for repairing, replacing or restoring neural function in response thereto, the method comprising:

organizing a plurality of component devices in, on or about a patient;

collecting data of the physiological parameters of the patient via at least some of the component devices;

collecting data of the environmental parameters of the patient via at least some of the component devices;

computing the collected data;

communicating the computed data to the component devices having capacity to deliver a therapeutic effect;

delivering a therapeutic effect in response to the collected, computed and communicated data; and

repeating the collecting, computing, communicating and delivering steps continuously to adjust to changed physiological, environmental or component device conditions.

48. The method of claim 47, further comprising directly inputting data by at least one of the patient or a care-giver prior to the computing, communication and delivering steps.