Test element and method for testing blood

• US 7,871,825 B2
• Filed: 02/02/2005
• Issued: 01/18/2011
• Est. Priority Date: 02/02/2004
• Status: Expired due to Fees

• Current Assignee: Medion Diagnostics AG (Grifols SA)
• Original Assignee: Medion Diagnostics AG (Grifols SA)
• Inventors: Schwind, Peter
• Primary Examiner(s): WALLENHORST, MAUREEN
• Application Number:
  US10/588,053
• Publication Number:
  US 20070218557A1
• Time in Patent Office: 2,176 Days
• Field of Search: 436/63, 436/164, 436/165, 436/169, 436/174, 422/55, 422/56, 422/58, 422/61, 422/99, 422/102, 422/103, 604/7, 604/403, 604/404, 604/408
• US Class Current: 436/63
• CPC Class Codes: B01L 3/5023 with a sample being transported to, and subsequently stored in an absorbent for analysis
• CPC Class Codes: B01L 3/508 rigid containers not provided for above
• CPC Class Codes: Y10T 436/25 including sample preparation

Abstract

A test for diagnostic tests, particularly for testing blood prior to a transfusion is disclosed. The test element includes at least two test units for carrying out at least two tests. The test element is provided with a fixing means for fixing the test element.

Claims

1. A method for testing blood during the preparation and performance of bedside-tests, wherein the method comprises:

first, testing donor blood located within a blood bag to be potentially transfused into a recipient by using a first test unit of a test element and obtaining a first result;

subsequently, fixing the test element to the blood bag;

thereafter, testing blood from the recipient by applying a sample of the recipient'"'"'s blood to a second test unit of the test element while the test element is fixed to the blood bag and obtaining a second result; and

comparing the first and second test results on the test element fixed to the blood bag in order to determine whether the donor blood is compatible for transfusion into the recipient.

2. A test element for carrying out the method according to claim 1, wherein the test element comprises at least a first test unit and a second test unit for performing at least two tests, and

the test element comprises a fixing means for fixing the test element to the blood bag.

3. The test element according to claim 2 in which the fixing means is a bonding foil.

4. The test element according to claim 2 in which the fixing means is provided as a cable tie.

5. The test element according to claim 2 in which at least one of the first and second test units is formed in such a way that, after the performance of the tests, no fluid emerges.

6. The test element according to claim 2 in which by means of one of the at least first and second test units, bag blood for blood transfusions is tested.

7. The test element according to claim 6, wherein the first test unit for bag blood comprises at least three test chambers or test fields.

8. The test element according to claim 7, wherein three of the at least three test chambers or test fields respectively comprise anti-A, anti-B, and anti-D reagents.

9. The test element according to claim 2 in which by means of the second test unit, the blood of a recipient of a blood transfusion is tested.

10. The test element according to claim 9, wherein the second test unit for the blood of a recipient comprises at least two test chambers or test fields.

11. The test element according to claim 10, wherein two of the at least two test chambers or test fields respectively contain anti-A and anti-B reagents.

12. The test element according to claim 2, wherein in at least one of the first and second test units, a test result is maintained for at least 45 days.

13. The method according to claim 1, wherein the testing of blood from the blood bag occurs in the hospital laboratory.

14. The method according to claim 1, wherein the testing of blood from the recipient occurs at the bed of the recipient.