TISSUE MONITORING APPARATUS AND SYSTEM

• US 20150327777A1
• Filed: 05/11/2015
• Published: 11/19/2015
• Est. Priority Date: 05/14/2014
• Status: Abandoned Application

• Current Assignee: Stryker Corporation
• Original Assignee: Stryker Corporation
• Inventors: Kostic, Marko N., Hopper, Christopher John, Lafleche, Patrick, Lawrence, Scott
• Application Number:
  US14/708,383
• Publication Number:
  US 20150327777A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0075 by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy A61B5/0071 takes precedence
• CPC Class Codes: A61B 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/0261 using optical means, e.g. infrared light
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/1459 invasive, e.g. introduced into the body by a catheter A61B5/1464 takes precedence
• CPC Class Codes: A61B 5/4848 Monitoring or testing the effects of treatment, e.g. of medication
• CPC Class Codes: A61F 2007/0094 using a remote control
• CPC Class Codes: A61F 7/00 Heating or cooling appliances for medical or therapeutic treatment of the human body heating or cooling means in connection with bedsteads or mattresses A47C21/00 ; massage, therapeutic baths A61H; hyperthermia using electric or magnetic fields or ultrasound A61N; electric heating elements H05B
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 2205/3303 Using a biosensor
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2230/00 Measuring parameters of the user
• CPC Class Codes: A61M 2230/20 Blood composition characteristics

Abstract

A tissue monitoring device for selecting, administering or adjusting a treatment based on information obtained by monitoring the tissue. The device includes a substrate for applying to the tissue, for example, a human or an animal external, or internal tissue, including vascular tissue; a light source supported by the substrate, the light source emitting light of a first frequency for directing the emitted light onto a surface of the tissue; a photodetector carried by the substrate spaced from the light source for detecting scattered light, wherein the scattered light is the emitted light scattered by the tissue; and a controller in communication with the photodetector and the light source.

Claims

1. A tissue monitoring device for selecting, administering or adjusting a treatment based on information obtained by the monitoring comprising:

a substrate for applying to a tissue, for example, a human or an animal external, or internal tissue, including vascular tissue;

a light source supported by the substrate, the light source emitting light of a first frequency for directing the emitted light onto a surface of the tissue;

a photodetector carried by the substrate spaced from the light source for detecting scattered light, wherein the scattered light is the emitted light scattered by the tissue; and

a controller in communication with the photodetector and the light source.

2. The tissue monitoring device according to claim 1, wherein each of the emitted light and the scattered light has an intensity, the controller determining scattered light intensity with respect to the intensity of the emitted light.

3. The tissue monitoring device according to claim 1, wherein the light source comprises more than one light source.

4. The tissue monitoring device according to claim 1, wherein the light source further emits light at a second frequency, wherein the second frequency is different from the first frequency and optionally measuring the scattered light intensity to measure the absorption accrued in the tissue for each frequency.

5. The tissue monitoring device according to claim 1, wherein the light source comprises a discrete light source.

6. The tissue monitoring device according to claim 1, wherein the light source comprises a contiguous light source.

7. The tissue monitoring device according to claim 3, wherein each light source has an identity, and the controller correlates the identities with the detected scattered light intensity.

8. The tissue monitoring device according to claim 1, wherein the light source comprises one or more of an LED, a laser, or a plasma lamp.

9. The tissue monitoring device according to claim 1, wherein the photodetector comprises one or more photosensitive elements, such as a photodiode, a phototransistor, a photomultiplier, or a CCD.

10. The tissue monitoring device according to claim 1, wherein the controller is configured to monitor changes and status in intracellular and extracellular elements of the tissue.

11. A tissue monitoring system comprising:

a tissue monitoring device for selecting, administering or adjusting a treatment based on information obtained by the monitoring comprising;

a light source for directing emitted light into a tissue of a subject;

a photodetector spaced from the light source for detecting scattered light wherein the scattered light is the emitted light scattered by the tissue;

a remote device in communication with the tissue monitoring device; and

a controller in communication with the photodetector and with the remote device.

12. The tissue monitoring system according to claim 11, wherein the remote device comprises a treatment device for applying a treatment to a subject, and the controller in communication with the treatment device for adjusting the treatment based on the scattered light detected by the photodetector.

13. The tissue monitoring system according to claim 11, wherein the remote device further comprises a display, the display in communication with the controller and displaying information based on the scattered light detected by the photodetector.

14. The tissue monitoring system according to claim 11, wherein the remote device further comprises a data storage unit, the data storage unit in communication with the controller for storing information based on the scattered light detected by the photodetector.

15. The tissue monitoring system according to claim 11, wherein the controller comprises a local controller and a remote controller, the remote controller in communication with the local controller for analyzing the scattered light detected by the photodetector.

16. The tissue monitoring system according to claim 11, wherein each of the emitted light and the scattered light has an intensity, the controller or local controller determining scattered light intensity with respect to the intensity of the emitted light.

17. The tissue monitoring system according to claim 16, wherein the controller or local controller determines the scattered light intensity as a function of time.

18. A method of monitoring the effects of an internal or external factor on a subject'"'"'s tissue, the method comprising:

emitting light of a first frequency;

directing the emitted light onto a surface of tissue; and

detecting scattered light intensity, wherein the scattered light intensity is the emitted light scattered by the tissue.

19. The method according to claim 18, wherein the directing includes directing light of more than one frequency, and optionally measuring the scattered light intensity to determine the absorption accrued in the tissue for each frequency.

20. The method according to claim 18, further comprising transmitting information about the scattered light to a caregiver or a remote device.

21. The method according to claim 18, further comprising controlling a remote device based on the determining of the scattered light intensity.

22. The method according to claim 21, further comprising administering a treatment based on the scattered light intensity, adjusting the administering of a treatment based on the scattered light intensity, or displaying information based on the scattered light intensity.

23. The method according to claim 22, wherein the adjusting of the administering of a treatment includes adjusting an application of thermal therapy or reduced pressure therapy or vibration/percussion therapy or drug therapy.

24. The method according to claim 22, wherein the determining the scattered light intensity includes determining the light intensity as a function of time.

25. The method according to claim 18, further comprising monitoring the scattered light intensity continuously or periodically, and optionally using information about the scattered light intensity to identify trends in a physiological condition of the subject.