Sperm densimeter

Details Sperm densimeter Sperm densimeter

1985-08-09

1986-12-30

Rosenberger, R. A.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

356442, 250364, G01N 2100

Patent

active

046325620

ABSTRACT:
Apparatus and method for measuring the density of sperm in a sample and for calculating the magnitude of dose required for artificial insemination. An optical assembly with light source, specimen holder and photodetector providing a signal to an amplifier the output of which is proportional to absorbance of the sample. A signal selection system utilizes three parallel signal channels with each having a different correction factor for matching the absorbance signal to actual density count, and including means for selecting the appropriate signal channel as a function of signal amplitude, with the output when calibrated providing the direct reading of the sperm density. Knowing the number of sperm cells desired per insemination and the percent motility of the sample sperm, the required dose is calculated as a function of the density count.

REFERENCES:
patent: 3807875 (1974-04-01), Fischer et al.
patent: 3944797 (1976-03-01), Coulter et al.
patent: 4176953 (1979-12-01), Bartoov et al.

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