Device for testing fluids
First Claim
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1. A device for testing a fluid by a reaction of a component of the fluid with a regeant carried by a test probe, the device comprising:
- a sleeve member having a first and second end;
a first chamber formed at the first end of the sleeve member, the chamber being adapted to be filled with the fluid by capillary action when the first end of the sleeve member is immersed in a source of the fluid;
a probe member adapted to be inserted into the sleeve member and axially movably received in the sleeve member;
a fluid testing surface on the probe member, the fluid testing surface being adapted to be inserted into the first chamber to react with the fluid in the first chamber; and
a second chamber formed in the sleeve member, the second chamber being separate from the first chamber and being adapted to remove fluid from the fluid testing surface on the probe member as the probe member is moved axially through the second chamber.
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Abstract
Blood tests are made using a diagnostic stick which has a testing chamber at one end of the stick. The chamber has an open end and is dimensioned so that blood can be drawn in to fill the chamber by capillary action. A testing surface is either mounted in the chamber or is on a separate probe which can be immersed in blood in the chamber. The invention can be used with fluids other than blood.
54 Citations
10 Claims
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1. A device for testing a fluid by a reaction of a component of the fluid with a regeant carried by a test probe, the device comprising:
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a sleeve member having a first and second end; a first chamber formed at the first end of the sleeve member, the chamber being adapted to be filled with the fluid by capillary action when the first end of the sleeve member is immersed in a source of the fluid; a probe member adapted to be inserted into the sleeve member and axially movably received in the sleeve member; a fluid testing surface on the probe member, the fluid testing surface being adapted to be inserted into the first chamber to react with the fluid in the first chamber; and a second chamber formed in the sleeve member, the second chamber being separate from the first chamber and being adapted to remove fluid from the fluid testing surface on the probe member as the probe member is moved axially through the second chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification