Patent ID: 11971341
Assignee: MINITÜB GMBH
Field: Measurement (Instruments)
Classification: CPC G  B  C | IPC B  C  G

Claim 4:
5. A counting compartment for analyzing samples comprising spermatozoa, said counting compartment comprising:
(a) a lid or top part comprising a top measurement window, said lid or top part being movable;
(b) a bottom part comprising a bottom measurement window, wherein the movable lid or top part and the bottom part are configured such that they form the bottom, lid and side walls of the counting compartment;
(b1) wherein one or both of the lid or top part and the bottom part are movable:

(c1) two different depths provided by the bottom measurement window and the top measurement window in the range of about 5 to about 100 μm,
wherein the two different depths provided by the bottom measurement window and the top measurement window are achieved by
(i) the bottom measurement window and/or the top measurement window comprise step(s); or
(ii) one of the bottom measurement window and the top measurement window is placed with inclination; or
(iii) one of the bottom measurement window and the top measurement window is placed parallel to the other of the bottom measurement window and the top measurement window and is provided with an inclined plane, wherein the inclined plane faces the other of the bottom measurement window and the top measurement window; or
(iv) moving the lid or top part and/or the bottom part of the counting compartment,

(c2) at least one further depth which is different from the two depths of (c1), said at least one further depth being bigger, and being located in the counting compartment or in the area of the measuring windows;
(d) means for moving the lid or top part; and
(e) an inlet and outlet located at opposite sides of the counting compartment.