Portable coagulation monitoring device for assessing coagulation response
First Claim
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1. A device for measuring coagulation response in a blood sample, comprising:
- a first member having a first surface, and a second member having a second surface, said first member positioned for having said first surface facing said second surface of said second member with sufficient space to allow a sample droplet of blood to contact said first surface and said second surface and initiate coagulation, and said first member and second member being linearly movable relative to each other;
a drive mechanism connected to at least one of said first member and said second member for linearly moving said first member and said second member relative to each other in parallel when a blood sample is in contact with said first surface and said second surface, wherein the drive mechanism comprises at least one motor; and
an optical detection sensor system for detecting interaction of light with a blood sample located between said first member and second member, as an indication of coagulation response of said blood sample;
wherein the device further comprises at least one microcontroller for controlling operation of said drive mechanism and optical detection sensor system.
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Abstract
A device, system and method is disclosed in which small volume blood samples are subjected to shear forces and shear stresses between two parallel planar surfaces to which linear motion trajectories are imparted. The formation of clots or coagulation of the sample is measured from dynamic mechanical coupling which occurs between the two parallel planar surfaces. Detection of the coagulation response can be achieved through optical probing or by measurement of physical effects of the blood sample binding to the planar surfaces, and restricting movement thereof.
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12 Claims
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1. A device for measuring coagulation response in a blood sample, comprising:
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a first member having a first surface, and a second member having a second surface, said first member positioned for having said first surface facing said second surface of said second member with sufficient space to allow a sample droplet of blood to contact said first surface and said second surface and initiate coagulation, and said first member and second member being linearly movable relative to each other; a drive mechanism connected to at least one of said first member and said second member for linearly moving said first member and said second member relative to each other in parallel when a blood sample is in contact with said first surface and said second surface, wherein the drive mechanism comprises at least one motor; and an optical detection sensor system for detecting interaction of light with a blood sample located between said first member and second member, as an indication of coagulation response of said blood sample; wherein the device further comprises at least one microcontroller for controlling operation of said drive mechanism and optical detection sensor system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification