Blood constituent testing methods

Details Blood constituent testing methods Blood constituent testing methods

1976-09-20

1978-04-04

Howell, Kyle L.

Surgery

Truss

Perineal

23230B, 73 611R, 734254P, 210 83, 210DIG23, 233 1R, A61B 514

Patent

active

040820858

ABSTRACT:
A technique for generally determining the buffy layer volume, white cell and platelet count or general reticulocyte count in a centrifugally separated mixture of a blood sample. A capillary centrifuge tube is used to hold the material mixture and an appropriately shaped body is disposed in the tube in the zone occupied by the constituent material whose volume is to be measured. The body reduces the available volume within the tube which may be occupied by the constituent material, and thus expands the axial extent of the constituent material to make visual measurement of the constituent material more accurate.

REFERENCES:
patent: 3513976 (1970-05-01), James
patent: 3914985 (1975-10-01), VON Behrens
patent: 3920557 (1975-11-01), Ayres

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