APPARATUS MONITORING SIGNAL IN SITU

• US 20090018417A1
• Filed: 07/15/2008
• Published: 01/15/2009
• Est. Priority Date: 01/19/2001
• Status: Abandoned Application

• Current Assignee: Wei-Kung Wang
• Original Assignee: Wei-Kung Wang
• Inventors: WANG, Wei-Kung
• Application Number:
  US12/173,275
• Publication Number:
  US 20090018417A1
• Time in Patent Office: Days
• US Class Current: 600/316
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6838 Clamps or clips

Abstract

For repeatedly measuring signals from a fixed position of a tissue to monitor the blood composition, we use one or more elastic membranes at upper and lower parts of the extruded tissue together with a cone-shaped guide. This will constrain the tissue in the fixed position when a signal guide is used for measuring signals from the fixed position of the tissue repeatedly. The signals can be from an aggregate of the designated composition with the other ingredients of the blood.

Claims

1. An apparatus for monitoring an induced signal in situ comprising:

a signal generator;

a signal analyzer; and

a tissue adaptor to fix the tissue in situ during repeated measurements,

wherein a signal generated by the signal generator is transmitted to the tissue, and the induced signal from the tissue in situ is received and analyzed by the signal analyzer.

2. An apparatus as claimed in claim 1, wherein the induced signal from the tissue is from an ingredient in the tissue.

3. An apparatus as claimed in claim 2, wherein the ingredient comprises aggregate.

4. An apparatus as claimed in claim 3, wherein the aggregate comprises glucose.

5. An apparatus as claimed in claim 3, wherein the aggregate comprises hemoglobin.

6. An apparatus as claimed in claim 3, wherein the aggregate comprises both glucose and hemoglobin.

7. The apparatus as claimed in claim 1, wherein the signal comprises an electromagnetic wave.

8. The apparatus as claimed in claim 1, wherein the tissue comprises an extruded shape.

9. The apparatus as claimed in claim 1, wherein the tissue adaptor comprises soft pads.

10. The apparatus as claimed in claim 1, wherein the tissue adaptor comprises a cone-shaped guide to confine the tissue.

11. The apparatus as claimed in claim 1, wherein the tissue adaptor comprises a concaved slot fit closely to the tissue.

12. The apparatus as claimed in claim 1, wherein the tissue adaptor comprises a spring.

13. The apparatus as claimed in claim 1, wherein the tissue adaptor comprises an elastic membrane.

14. The apparatus as claimed in claim 1, further comprising a position-fixing device.

15. The apparatus as claimed in claim 14, wherein the position-fixing device comprises a moving component, the moving component, attached with a second signal generator and a detector, moves relatively to tissue to a fixed position during repeated measurements,

16. An apparatus as claimed in claim 15, wherein the second signal generator generates a second signal to be transmitted to a marker on the tissue and a signal detector for detecting reflected signal of the marker on the tissue.

17. An apparatus as claimed in claim 16, wherein the marker is a natural one or an artificial one.

18. An apparatus as claimed in claim 14, wherein the position-fixing device comprises a three-element switch coupled with the cone-shaped guide to further define the position of the tissue.

19. An apparatus as claimed in claim 18, wherein the three-element switch is turned on when the tissue touches it at a second fixed position and is turned off when the tissue touches it in a position other than the second fixed position.

20. An apparatus as claimed in claim 18, wherein the position-fixing device further comprises an additional three-element switch, when the tissue is moved away either way from the second fixed position, the two three-element switches are turned off.