Chiropractic Care Management Systems and Methods

• US 20090292194A1
• Filed: 05/19/2009
• Published: 11/26/2009
• Est. Priority Date: 05/23/2008
• Status: Abandoned Application

• Current Assignee: Medtronic Monitoring, Inc. (Medtronic Plc)
• Original Assignee: Corventis Inc (Medtronic Plc)
• Inventors: Bly, Mark J., Manicka, Yatheendhar D., Libbus, Imad
• Application Number:
  US12/468,493
• Publication Number:
  US 20090292194A1
• Time in Patent Office: Days
• US Class Current: 600/391
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 2562/043 in a linear array
• CPC Class Codes: A61B 2562/166 the sensor is mounted on a specially adapted printed circuit board
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/02405 Determining heart rate variability
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/1116 Determining posture transitions
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/389 Electromyography [EMG]
• CPC Class Codes: A61B 5/6823 Trunk, e.g., chest, back, abdomen, hip
• CPC Class Codes: A61B 5/6833 Adhesive patches

Abstract

An adherent device may be placed on a patient'"'"'s chest for monitoring heart rate variability for chiropractic care. The device may comprise an adherent patch configured to adhere to the patient continuously for an extended period, for example an extended period of one week, and the HRV can be determined for the extended period. Two or more electrodes may be used to measure a cardiac signal and determine the HRV. The device may comprise accelerometers to measure at least one of posture, flexion/extension or lateral movement of the patient. The device may be placed on the patient and used in the clinic, and the patient may be sent home from the clinic with the adherent device. The device may wirelessly transmit heart rate data to an external device, such as a handheld monitor, that the chiropractor may consult during treatment.

Claims

1. An adherent device for chiropractic monitoring of a patient, the device comprising:

an adhesive patch to adhere to a skin of the patient;

at least two electrodes connected to the patch and capable of electrically coupling to the patient;

electrocardiogram circuitry coupled to the at least two electrodes to measure an electrocardiogram signal of the patient; and

a processor comprising a tangible medium coupled to the electrocardiogram circuitry, the processor comprising a tangible medium configured to determine at least one of a heart rate or a heart rate variability of the patient in response to the electrocardiogram signal.

2. The adherent device of claim 1 wherein the adhesive patch is configured to mechanically couple the at least two electrodes to the skin and obtain the electrocardiogram signal for at least one week.

3. The adherent device of claim 2 wherein the processor is configured to determine the heart rate variability with at least one of a time domain determination, a frequency domain determination or a non-linear determination.

4. The adherent device of claim 3 wherein the processor is configured to determine the heart rate variability with the frequency domain determination in response to at least one of a low frequency from about 0.04 to 0.15 Hz or a high frequency from about 0.15 Hz to about 0.4 Hz.

5. The adherent device of claim 3 wherein the processor is configured to determine the heart rate variability with the frequency domain determination in response to a ratio of a low frequency band comprising at least one low frequency from about 0.04 to 0.15 Hz and a high frequency band comprising at least one high frequency from about 0.15 Hz to about 0.4 Hz.

6. The adherent device of claim 3 wherein the processor is configured to determine the heart rate variability with the time domain determination in response to a standard deviation of R-R intervals.

7. The adherent device of claim 2 wherein the processor is configured to determine R-R intervals based on from about one to ten minutes of the electrocardiogram signal and wherein the heart rate variability comprises a standard deviation of the R-R intervals and wherein the processor is configured to determine the heart rate variability several times over the at least one week.

8. The adherent device of claim 2 wherein the processor is configured to determine averages of R-R intervals from the electrocardiogram signal and wherein the processor is configured to determine each of the averages of the R-R intervals based on from about one to ten minutes of the electrocardiogram signal and wherein the heart rate variability comprises a standard deviation of the averages of the R-R intervals and wherein the processor is configured to determine the heart rate variability several times over the at least one week.

9. The adherent device of claim 2 wherein the processor is configured to determine the heart rate variability at least once per hour for each hour of the at least one week.

10. The adherent device of claim 1 wherein the adhesive patch is mechanically coupled to the at least two electrodes and the electrocardiogram circuitry to support the at least two electrodes and the electrocardiogram circuitry when the adherent patch is adhered to the skin of the patient.

11. The adherent device of claim 1 further comprising wireless communication circuitry to transmit the heart rate variability to a caregiver computer system with a communication protocol.

12. The adherent device of claim 11 wherein the communications protocol comprises a two way protocol such that the caregiver computer system is capable of issuing commands to the processor to control data collection.

13. The adherent device of claim 12 wherein the processor is configured to transmit the at least one of the heart rate or the heart rate variability to the caregiver computer system in response to a command from the caregiver computer system when the wireless communication circuitry is located in an office of the caregiver.

14. The adherent device of claim 11 wherein the caregiver computer system comprises a display visible to a caregiver and a tangible medium configured to show information on the display in response to the electrocardiogram signal.

15. The adherent device of claim 11 wherein the wireless communication circuitry is configured to communicate with a remote center using an intermediate device.

16. The adherent device of claim 1 further comprising wireless communication circuitry to transmit the at least one of the heart rate or the heart rate variability to a remote center with a communication protocol.

17. The adherent device of claim 16 wherein the wireless communication circuitry is configured to transmit the electrocardiogram signal to the remote center with an intermediate device.

18. The adherent device of claim 17 wherein the communication protocol comprises at least one of Bluetooth, Zigbee, WiFi, WiMax, IR, a cellular protocol, amplitude modulation or frequency modulation.

19. The adherent device of claim 17 wherein the intermediate device comprises a data collection system to collect and/or store data from the wireless transmitter and wherein the data collection system is configured to communicate periodically with the remote center with wireless connection and/or wired communication.

20. The adherent device of claim 17 wherein the communications protocol comprises a two way protocol such that the remote center is capable of issuing commands to the processor to control data collection.

21. The adherent device of claim 17 wherein the processor is configured to control collection and transmission of data from the electrocardiogram circuitry.

22. The adherent device of claim 1 wherein the adherent patch comprises a breathable tape, the breathable tape comprising a breathable material with an adhesive.

23. The adherent device of claim 1 further comprising an accelerometer connected to the adhesive patch to measure at least one of a rotation, a flexion/extension, a lateral movement or a posture of the patient.

24. The adherent device of claim 1 further comprising an accelerometer connected to a second adhesive patch configured for placement on at least one of a head, a neck or an ear of the patient.

25. An adherent device system for chiropractic monitoring of a patient, the system comprising:

at least one adhesive patch to adhere to a skin of the patient;

at least accelerometer connected to the at least one patch to generate at least one accelerometer signal; and

a processor coupled to the at least one accelerometer, the processor comprising a tangible medium configured to determine at least one of a rotation, a flexion/extension, a lateral movement or a posture of the patient in response to the at least one accelerometer signal.

26. A method of monitoring a patient, the method comprising:

adhering an adhesive patch to a skin of the patient to couple at least two electrodes to the skin of the patient;

measuring an electrocardiogram signal of the patient with electrocardiogram circuitry coupled to at least two of the at least two electrodes; and

determining at least one of a heart rate or a heart rate variability of the patient.

27. The method of claim 26 wherein the patch is adhered to the patient for at least one week and the heart rate or the heart rate variability is determined for the at least one week.

28. The method of claim 27 wherein averages of R-R intervals are determined from the electrocardiogram signal and each of the averages of the R-R intervals are determined based on from about one to ten minutes of the electrocardiogram signal and wherein the heart rate variability comprises a standard deviation of the averages of the R-R intervals and wherein the heart rate variability is determined several times over the at least one week.

29. The method of claim 27 wherein the heart rate variability is determined at least once per hour for each hour of the at least one week.

30. The method of claim 26 wherein the adhesive patch supports the at least two electrodes and the processor when the adherent patch is adhered to the skin of the patient.

31. A method of chiropractic monitoring a patient, the method comprising:

adhering at least one adhesive patch to a skin of the patient to couple at least one accelerometer to the skin of the patient;

measuring at least one accelerometer signal of the patient with the at least one accelerometer coupled to the skin of the patient; and

determining at least one of a rotation, a flexion/extension, a lateral movement or a posture of the patient in response to the accelerometer signal.

32. An adherent device to monitor a patient for an extended period, the device comprising:

a breathable tape comprising a porous material with an adhesive coating to adhere the breathable tape to a skin of the patient;

at least one electrode affixed to the breathable tape and capable of electrically coupling to a skin of the patient;

at least one gel disposed over a contact surface of the at least one electrode to electrically connect the electrode to the skin;

a circuit board connected to the electrodes to couple the printed circuit board to the electrodes;

electronic components electrically connected to the printed circuit board and coupled to the at least one electrode to measure an electrocardiogram signal of the patient; and

a processor coupled to the electronic components to determine at least one of a heart rate or a heart rate variability of the patient.

33. The adherent device of claim 32 further comprising a breathable cover disposed over the circuit board and electronic components and connected to at least one of the electronics components, the printed circuit board or the breathable tape.

34. The adherent device of claim 33 further comprising an electronics housing adhered to at least one of the electronics components or the printed circuit board, such that the electronics housing is disposed between the cover and electronics components.

35. The adherent device of claim 32 further comprising a gel cover positioned over the breathable tape to control hydration of the at least one gel and to inhibit a flow of the gel through the breathable tape and wherein the printed circuit board is located over the gel cover such that the gel cover is disposed between the breathable tape and the printed circuit board.

36. The adherent device of claim 32 further comprising a gel cover and wherein the breathable tape comprises a first porosity and the gel cover comprises a breathable tape with a second porosity, the second porosity less than the first porosity to decrease a flow of moisture to and from the at least one gel and to decrease flow of the gel through the breathable tape.

37. The adherent device of claim 32 wherein the breathable tape, the adhesive coating and the at least one electrode are separable from the printed circuit board and electronic components such that the printed circuit board, electronic components, housing and cover are reusable.

38. The adherent device of claim 32 wherein the at least one electrode extends through at least one aperture in the breathable tape.