Method and a blood oxygen tester for detecting the arterial or venous blood

• US 8,278,110 B2
• Filed: 11/01/2011
• Issued: 10/02/2012
• Est. Priority Date: 03/20/2009
• Status: Active Grant

• Current Assignee: Ali Ghobadi
• Original Assignee: Ali Ghobadi
• Inventors: Ghobadi, Ali
• Primary Examiner(s): Wallenhorst, Maureen
• Application Number:
  US13/287,087
• Publication Number:
  US 20120045791A1
• Time in Patent Office: 336 Days
• Field of Search: 436/63, 436/68, 436/164, 436/165, 436/169, 436/148, 422/400, 422/401, 422/402, 422/420, 422/430, 422/68.1, 422/82.01, 422/82.04, 422/82.13, 422/83, 422/86, 422/87, 422/88, 422/98, 435/2, 600/573, 600/576, 600/584, 604/503
• US Class Current: 436/68
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/1468 using chemical or electrochemical methods, e.g. by polarographic means A61B5/1486 takes precedence
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150786 Optical identification systems, e.g. bar codes, colour codes
• CPC Class Codes: A61B 5/1535 comprising means for indicating vein or arterial entry A61B5/1545 takes precedence
• CPC Class Codes: G01N 33/558 using diffusion or migration of antigen or antibody immunochromatographic test strips G01N33/54387

Abstract

A method and a blood oxygen tester for determining whether a blood sample is arterial or venous blood are disclosed. A blood oxygen tester for determining whether a blood sample is arterial or venous blood includes a housing and a blood sample receptacle defined by the housing. A blood oxygen sensor is in communication with the blood sample receptacle and a test result indicator is in communication with the blood oxygen sensor. The indicator is responsive to the blood oxygen sensor for indicating whether a tested blood sample is arterial blood or venous blood.

Claims

1. A blood oxygen tester for determining whether a blood sample is arterial or venous, said blood oxygen tester comprising:

a housing;

a blood sample receptacle defined by said housing and having an area for depositing a blood sample;

a blood oxygen sensor within said area in the blood sample receptacle, said blood oxygen sensor reactive to a partial pressure of oxygen (pO2) in the blood sample; and

a test result indicator defined by said housing and in communication with said blood oxygen sensor, said indicator responsive to said blood oxygen sensor'"'"'s reaction to the partial pressure of oxygen (pO2) in the deposited blood sample displaying a first color when the blood sample is arterial blood and indicating a second color when the blood sample is venous blood.

2. The blood oxygen tester according to claim 1, wherein said housing has a volume of less than one hundred cubic centimeters.

3. The blood oxygen tester according to claim 1, wherein said housing has a volume of less than fifty cubic centimeters.

4. The blood oxygen tester according to claim 1, wherein said blood oxygen sensor reacts to a partial pressure of oxygen (pO2) greater than seventy mmHg in the blood sample.

5. The blood oxygen tester according to claim 4, wherein said test result indicator displaying the first color based on said blood oxygen sensor'"'"'s reaction to the partial pressure of oxygen (pO2) greater than seventy mmHg.

6. The blood oxygen tester according to claim 1, wherein said blood oxygen sensor reacts to a partial pressure of oxygen (pO2) less than forty mmHg in the blood sample.

7. The blood oxygen tester according to claim 6, wherein said test result indicator displaying the second color based on said blood oxygen sensor'"'"'s reaction to the partial pressure of oxygen (pO2) less than forty mmHg in the blood sample.

8. A method for determining whether a patient'"'"'s blood sample is venous or arterial blood utilizing a blood oxygen tester, said method comprising:

preparing a site on the patient'"'"'s body to withdraw a blood sample;

inserting a needle through the site to withdraw the blood sample;

aspirating the blood sample;

depositing the aspirated blood sample in a receptacle of a blood oxygen tester, said receptacle includes a blood oxygen sensor reactive to a partial pressure of oxygen (pO2) in the blood; and

viewing a color on a test result indicator to determine whether the blood withdrawn is arterial or venous blood, said indicator displaying the color responsive to said blood oxygen sensor'"'"'s reaction to the partial pressure of oxygen (pO2) in the deposited blood sample.

9. The method according to claim 8, wherein said test result indicator displaying a first color when the blood sample is venous blood and indicating a second color when the blood sample is arterial blood.

10. The method according to claim 8, wherein said blood oxygen sensor includes a micro dissolved oxygen electrode reactive to the partial pressure of oxygen in the blood sample.

11. The method according to claim 8, wherein said blood oxygen sensor is an electrochemical sensor reactive to the partial pressure of oxygen in the blood sample.

12. The method according to claim 8, wherein said blood oxygen sensor comprises a reaction strip reactive to the partial pressure of oxygen (pO2).

13. A blood oxygen tester comprising:

a blood oxygen sensor reactive to a partial pressure of oxygen (pO2), wherein said blood oxygen sensor includes a micro dissolved oxygen electrode reactive to the partial pressure of oxygen in a blood sample; and

a test result indicator in communication with said blood oxygen sensor, said indicator responsive to said blood oxygen sensor'"'"'s reaction to the partial pressure of oxygen (pO2) in a blood sample indicating whether the blood sample is arterial blood or venous blood.

14. A blood oxygen tester comprising:

a blood oxygen sensor reactive to a partial pressure of oxygen (pO2), wherein said blood oxygen sensor is an electrochemical sensor reactive to the partial pressure of oxygen in a blood sample; and

a test result indicator in communication with said blood oxygen sensor, said indicator responsive to said blood oxygen sensor'"'"'s reaction to the partial pressure of oxygen (pO2) in a blood sample indicating whether the blood sample is arterial blood or venous blood.

15. The blood oxygen tester of claim 14, wherein said indicator indicating a first color if the blood sample is arterial blood or a second color if the blood sample is venous blood.

16. A blood oxygen tester comprising:

a housing having a volume of less than fifty cubic centimeters;

a blood sample receptacle defined by said housing for depositing a blood sample;

a blood oxygen sensor within said receptacle in said housing, said blood oxygen sensor reactive to a partial pressure of oxygen (pO2) in the deposited blood sample; and

a test result indicator defined by said housing and in communication with said blood oxygen sensor, said indicator responsive to said blood oxygen sensor'"'"'s reaction to the partial pressure of oxygen displaying a first color when the tested blood sample is venous blood and indicating a second color when the tested blood sample is arterial blood.

17. The blood oxygen tester of claim 16, wherein said blood oxygen sensor includes a micro dissolved oxygen electrode reactive to the partial pressure of oxygen in the blood sample.

18. The blood oxygen tester of claim 16, wherein said blood oxygen sensor is an electrochemical sensor reactive to the partial pressure of oxygen in the blood sample.