QwikCheck™
Sperm Quality Analyzer User Guide Version 1.00 I-Button WHO 5th _06_AUG_2012
6
SECTION 2: Technology
Technology
Step 1:
The capillary is inserted into the measurement compartment.
Step 2:
Concentration:
Millions of sperm cells are analyzed: A very specific wavelength of light
is absorbed by the sperm cells in the concentration chamber of the
testing capillary.
An detector measures the amount of light absorbed by the cells and
converts it to optical density (OD).
The “OD” reading is translated into sperm concentration by a
microprocessor based on proprietary algorithms.
Step 3:
Motility:
Tens of thousands of sperm cells are analyzed in the thin section of the
testing capillary as they move through a light beam in the system,
causing light disturbances.
These light disturbances are converted into electronic signals with
“peaks and valleys.”
The electronic signal peaks are analyzed by microprocessor software
based on a proprietary MES algorithm and translated into motility
parameters.
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
V
ol
ta
ge
[
vo
lts
]
Time [sec]
Electronic Signal of Motile Sperm
QwikCheck™
Optical Block
Optical Block
LED
Conv
OD
Conv
Micro
Processor
M.E.S.
Proprietary
Algorithms
Semen
Parameters
LED
Density
Detector
Motility
Detector
Step 1
Step 2
Step 3
