Sperm sampler driving device

1. A sperm sampler driving device that detachably holds a sperm sampler and rotates a held sperm sampler, the sperm sampler driving device comprising:

a casing that has one end being open and is manually holdable;

a rotating holder that is rotatably arranged in an opening of the casing and detachably holds a part of the sperm sampler;

a motor that is arranged in the casing and rotates and drives the rotating holder;

a control unit;

a battery as power supply for the motor and the control unit;

a single switch that is arranged on an outer face of the casing and turns on and off power supply from the battery to the motor; and

an angular speed sensor that detects a turning angular speed of the casing, wherein

the control unit changes a rotation direction and a rotation speed of the motor according to a change in a turning angle of the casing.

2. The sperm sampler driving device according to claim 1 , wherein

the control unit obtains, as an initial original point, a turning angle of the casing that is detected by the angular speed sensor at a time point when the switch is turned ON,

when the casing is turned from the initial original point to one direction or another direction, the control unit controls switching of a turning direction and a rotation speed of the motor based on an angular difference from the initial original point after turning, and

when the turning angle of the casing exceeds a predetermined value, the control unit moves the original point in a same direction from the initial original point by an angle exceeding the predetermined value.