Patent attributes
Disclosed is a receptacle for use with a medical suction device which is equipped with a cover body and an external case for detachably holding and air-tightly surrounding the receptacle and a patient-side tube for introducing waste liquid into the receptacle, and designed to create a negative pressure in both an interior space of the cover body and the external case and an interior space of the receptacle so as to allow waste liquid to be sucked into the receptacle through the patient-side tube. The receptacle has an air-pervious/liquid-impervious element having air perviousness and liquid imperviousness. The air-pervious/liquid-impervious element at least partly constitutes a portion of the receptacle to be surrounded by the cover body and the external case.