Methods and devices for measuring sample coagulation
First Claim
1. A device comprising a slide coupled to a sample carrier capable of sample flow from one end of the carrier to another end in a continuous back and forth motion until sample coagulates thereby preventing sample flow;
- a rocker or shaker means for moving sample inside the sample carrier;
a light detector assembly for detecting light transmitted through said sample or sample carrier; and
a display means for indicating coagulation time corresponding to substantially no change in the amount of light transmitted as indicative of sample coagulation.
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Accused Products
Abstract
The present invention provides devices and methods for measuring coagulation time. The device comprises a slide coupled to a sample carrier capable of sample flow from one end of the carrier to another end in a continuous back and forth motion until sample coagulates thereby preventing sample flow; a rocker or shaker means for moving sample inside the sample carrier; a light detector assembly for detecting light transmitted through said sample carrier; and a display means for indicating coagulation time corresponding to substantially no change in the amount of light transmitted as indicative of sample coagulation.
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Citations
20 Claims
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1. A device comprising a slide coupled to a sample carrier capable of sample flow from one end of the carrier to another end in a continuous back and forth motion until sample coagulates thereby preventing sample flow;
- a rocker or shaker means for moving sample inside the sample carrier;
a light detector assembly for detecting light transmitted through said sample or sample carrier; and
a display means for indicating coagulation time corresponding to substantially no change in the amount of light transmitted as indicative of sample coagulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- a rocker or shaker means for moving sample inside the sample carrier;
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20. A method for determining coagulation time, comprising:
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a) applying a blood sample to a target location on a slide having disposed onto a capillary tube;
b) initiating a timing cycle when sample inside capillary tube is moved by means of a shaker from one end of the tube to another end in a continuous back and forth motion until sample coagulates thereby preventing sample flow, and a light source is turned on for transmitting light through the tube; and
c) determining coagulation time when substantially no change in the amount of light transmitted is detected.
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Specification