Sample collection and testing device

A sample collection and testing device for analyzing and testing an analyte in a liquid sample, the sample collection and testing device comprising a collection inner cavity and a collection outer cavity;

• wherein the collection inner cavity is disposed inside the collection outer cavity;
• the collection inner cavity communicates with the collection outer cavity via through holes at a bottom portion of the collection inner cavity;
• the collection inner cavity is movable between a first position and a second position relative to the collection outer cavity;
• when the collection inner cavity is at the first position, the liquid sample is collected into the collection outer cavity;
• and when the collection inner cavity is at the second position, the liquid sample is discharged out of the collection outer cavity, wherein the collection outer cavity comprises a cavity body and a platform at an upper part of the cavity body;
• the collection inner cavity is disposed inside the cavity body;
• a limiting snap ring is provided on the platform;
• the limiting snap ring has a restrictive position and a non-restrictive position on the platform;
• when the limiting snap ring is at the restrictive position, the limiting snap ring is snapped between the collection outer cavity and the collection inner cavity to prevent movement of the collection inner cavity in the collection outer cavity;
• and when the limiting snap ring is at the non-restrictive position, the limiting snap ring is not snapped between the collection outer cavity and the collection inner cavity, and the collection inner cavity is movable in the collection outer cavity from the first position to the second position.