Method of Measuring Blood Circulation Velocity by Controlling Breath

• US 20070119453A1
• Filed: 11/27/2006
• Published: 05/31/2007
• Est. Priority Date: 11/28/2005
• Status: Abandoned Application

• Current Assignee: Zen-U Biotechnology Co., Ltd
• Original Assignee: Zen-U Biotechnology Co., Ltd
• Inventors: Lu, Chih-Yi, Lu, Hsueh-Kuan
• Application Number:
  US11/563,677
• Publication Number:
  US 20070119453A1
• Time in Patent Office: Days
• US Class Current: 128/204.230
• CPC Class Codes: A61B 5/026 Measuring blood flow A61B3/1233, A61B3/1241 take precedence
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/4884 inducing physiological or psychological stress, e.g. applications for stress testing

Abstract

A method of measuring blood circulation velocity by controlling a person'"'"'s breath includes the steps of keeping the person in a first breathing status with a blood oxygen saturation analytical instrument; setting an initial time point and starting to record a blood oxygen saturation value per predict time interval; requesting the person to change into a second breathing status at a first time point; requesting the person to change into a third breathing status at a second time point; stopping recording the blood oxygen saturation value at a terminal time point; setting a reference time point according to the blood oxygen saturation value which has a variation according to the records; obtaining the person'"'"'s blood circulation velocity, which is proportional to the reciprocal of the difference of the reference time point and the first time point.

Claims

1. A method of measuring blood circulation velocity by controlling a person'"'"'s breath, comprising the steps of:

keeping the person in a first breathing status with a blood oxygen saturation analytical instrument;

setting an initial time point and starting to record a blood oxygen saturation value per predict time interval;

requesting the person to change into a second breathing status at a first time point;

requesting the person to change into a third breathing status at a second time point;

stopping recording the blood oxygen saturation value at a terminal time point;

setting a reference time point according to the blood oxygen saturation value which has a variation according to the records; and

obtaining the person'"'"'s blood circulation velocity, which is proportional to a reciprocal of a difference of the reference time point and the first time point.

2. The method as claimed in claim 1, wherein the first breathing status is a normal breathing status of the person to be measured.

3. The method as claimed in claim 1, wherein the second breathing status of the person to be measured is a short breathing status.

4. The method as claimed in claim 3, wherein the person empty air inside the body before or at the same time of acting the short breathing status.

5. The method as claimed in claim 1, wherein the second breathing status of the person to be measured is a deep breathing status.

6. The method as claimed in claim 1, wherein the third breathing status is the same of the first breathing status.

7. The method as claimed in claim 1, wherein the blood circulation velocity of the person to be measured is obtained by using a reference distance dividing the difference of the reference time point and the first time point.

8. The method as claimed in claim 7, wherein the reference distance is proportional to a height of the person to be measured.

9. The method as claimed in claim 1, wherein the person'"'"'s blood circulation velocity is obtained by comparing the reciprocal to a normal distribution table.

10. The method as claimed in claim 1, wherein when the initial time point is at zero second, the first time point is at about 20th second.

11. The method as claimed in claim 1, wherein when the initial time point is at zero second, the first time point is at about 40th second.

12. The method as claimed in claim 1, wherein when the initial time point is at zero second, the first time point is at about 90th second.

13. The method as claimed in claim 1, wherein the blood oxygen saturation analytical instrument is not an intrusive type.

14. The method as claimed in claim 1, wherein the blood oxygen saturation analytical instrument is an intrusive type.

15. The method as claimed in claim 1, wherein the record of the blood oxygen saturation value is invalid if the blood oxygen saturation value at the first time point is different to that at the initial time point.