Chemistry: analytical and immunological testing – Clotting or clotting factor level tests
Patent
1995-10-19
1997-05-13
Le, Long V.
Chemistry: analytical and immunological testing
Clotting or clotting factor level tests
436174, 436180, 436 43, 422 73, 422 81, 422100, 73 5415, 73 5418, G01N 1112
Patent
active
056292090
ABSTRACT:
An apparatus for detecting changes in the viscosity of a fluid comprises a cartridge having a fluid receiving/dispensing reservoir, one or more fluid-receiving chambers, and a conduit that permits fluid communication between the fluid receiving/dispensing reservoir and the fluid-receiving chamber. Fluid is introduced into the cartridge through an injection port and fills the reservoir, moving from the reservoir through the conduit into the chamber. An air vent/fluid plug device in fluid communication with the chamber permits air to exit while the fluid enters the system but prevents the fluid from leaving after the chamber is filled. A freely movable ferromagnetic material is placed within the fluid-receiving chamber and is caused to move by an electromagnet. Changes in the viscosity of the fluid are detected by determining the position of the ferromagnetic material in the fluid-receiving chamber.
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Boiarski Anthony A.
Braun Steven P.
Braun, Jr. Walter J.
Braun, Sr. Walter J.
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