Abstract: A device for transferring liquids and liquid samples in certain quantities includes a first housing, a second housing, and a liquid extraction assembly. The first housing includes a first sidewall, a first top wall, an extrusion portion, and a first receiving cavity. The extrusion portion is disposed in the first receiving cavity. The second housing includes a second sidewall, a second top wall, and a second receiving cavity. The first housing is received in the second receiving cavity. The liquid extraction assembly includes a liquid extraction pipe and a liquid extraction head. By thumb or finger pressure, the first housing can be moved into the second receiving cavity to compress the extrusion portion to cause release of a sample, or released to gather a sample.

Abstract: A device for transferring liquids and liquid samples in certain quantities includes a pressing unit and a liquid extraction assembly. The pressing unit includes a first housing and a second housing. The first housing includes a first sidewall, a first top wall, and an extrusion portion. The second housing includes a second sidewall, a second top wall, and a receiving cavity. The first housing is received in the receiving cavity. The liquid extraction assembly includes a liquid extraction pipe, a liquid extraction head, and a first connecting portion. The first housing is configured to move back and forth along the receiving cavity to drive the extrusion portion to compress and deform the liquid extraction pipe. The liquid extraction assembly is detachably installed in pressing unit and is replaceable and suitable for single-use situations.