Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1991-05-20
1993-06-29
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
422 73, 422103, 422104, 73 59, 73 641, 73 6442, 435297, G01N 1110, G01N 3316
Patent
active
052232271
ABSTRACT:
An instrument for measuring the coagulation characteristics of whole blood samples is provided with disposable parts for contacting the blood. The pin has a blood-compatible plastic sleeve surrounding a metal stem which weights the pin assembly so it sinks into the blood sample. The metal stem also engages into the pin suspension apparatus of the instrument. A blood-compatible plastic cup receives the blood sample to be tested, and is surrounded by a metal collar to transfer heat to the cup for the time required for a test. The plastic surfaces which contact the blood sample are slightly roughened, to a matte finish, to improve adhesion so as to approximate the results obtained with stainless steel pins and cups.
REFERENCES:
patent: 3865551 (1975-02-01), Saiki et al.
patent: 4148216 (1979-04-01), Do et al.
patent: 4317363 (1982-02-01), Shen
patent: 4341111 (1982-06-01), Husar
patent: 4524610 (1985-06-01), Fitzgerald et al.
patent: 4551308 (1985-11-01), Mintz
patent: 4592226 (1986-06-01), Weber et al.
patent: 5016469 (1991-05-01), Henderson
Haemoscope Corporation
Housel James C.
Redding David
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