Dilution and filtration device, apparatus and method of preparing excrement detection solutions

An apparatus of preparing excrement detection solutions, comprising:

• a dilution and filtration device, comprising:
• a sampling member comprising a suspension collecting chamber having at least one suspension collecting window disposed at a side surface of the suspension collecting chamber;
• a top cap having a through hole at a center portion of the top cap;
• a connecting cylinder disposed at a top end of the sampling member and mounted to a side wall of the through hole of the top cap such that the connecting cylinder is concentric with the through hole and is rotatable;
• and
• a specimen tube connected to the top cap and accommodating the sampling member, and
• a stirring and sampling device, comprising:
• a vertical movement part comprising a vertical driving motor, a rack driven by the vertical driving motor and a transmission gear engaged with the rack;
• a stirring part connected to the vertical movement part and comprising a cylinder stirring handle which has a shape matching an inner shape of the connecting cylinder;
• and
• a sampling needle passing through an inner chamber of the cylinder stirring handle and connected to the vertical movement part.

A method of preparing excrement detection solutions using a dilution and filtration device, the dilution and filtration device comprising:

• a sampling member comprising a suspension collecting chamber having at least one suspension collecting window disposed at a side surface of the suspension collecting chamber;
• a top cap having a through hole at a center portion of the top cap;
• a connecting cylinder disposed at a top end of the sampling member and mounted to a side wall of the through hole of the top cap such that the connecting cylinder is concentric with the through hole and is rotatable;
• a specimen tube connected to the top cap and accommodating the sampling member;
• and
• a blocking member which is disposed at the top end of the sampling member and below the connecting cylinder,
• the method comprising:
• mounting the connecting cylinder to the sampling member and the side wall of the through hole of the top cap;
• collecting excrement specimens by the sampling member, placing the sampling member into the specimen tube, and connecting the specimen tube to the top cap;
• injecting dilution solutions into the suspension collecting chamber and stirring suspensions formed by mixing of the excrement specimens and the dilution solutions;
• and
• sucking the suspensions during stirring from the suspension collecting chamber to obtain the excrement detection solutions.