Abstract: Disclosed is a drainage bottle system comprising: a system housing, a drainage bottle, a drainage tube, a motorless suction device and a liquid detection device, wherein a piezoelectric suction pump of the motorless suction device generates a negative pressure by means of piezoelectric effect to drive the drainage tube to suck and collect a liquid to be detected into the drainage bottle.

Abstract: A closed suction set insertable (1) includes a tube body (10), a bronchoscope connector (20), a choke valve (30) and a bronchoscope socket (40). The bronchoscope connector (20) is installed on the tube body (10), and the choke valve (30) is plugged into an external port (201) of the bronchoscope connector (20), and the choke valve (30) has a flexible choke plate (31) with an end extended into the bronchoscope connector (20) and sealed with an end of the choke valve (30). The bronchoscope socket (40) includes an external sleeve (41) and an internal sleeve (42), and the internal sleeve (42) has an insert hole (420) for passing a bronchoscope (2).

Abstract: A joint of sputum suction tube includes a patient tube (100), an exhaust tube (200) and a sleeve (300). The sleeve (300) includes a rotatable end (310) and a fixed end (320). The rotatable end (310) rotatably joints the exhaust tube (200). The fixed end (320) fixedly joints the exhaust tube (200). Therefore, the patient tube (100) rotatably connects with the exhaust tube (200) by the sleeve (300).

Abstract: A connecting pipe structure for a suction set is provided for connecting the suction set and a washing liquid bottle, and the suction set includes a tubular body and a washing connector perpendicularly interconnected to the tubular body. The connecting pipe structure comprises a first socket, a second socket and an interconnect pipe, and the first socket is sheathed on the washing connector, and the second socket is installed perpendicularly to the first socket, and the second socket is coupled to the washing liquid bottle, and the interconnect pipe is interconnected to the first socket and the second socket, and the interconnect pipe has an external diameter smaller than the external diameter of the first socket and the external diameter of the second socket. With the curved interconnect pipe, the second socket can swing with respect to the first socket.

Abstract: A suction device having a rotary switch is provided. A main body of the suction device is provided with a patient-end connector, an oxygen supply connector, a suction connector, a cleaning connector and a connecting portion. The rotary switch is assembled with the connecting portion and can be switched between a first position and a second position. The rotary switch is provided with two opposite suction holes. When the rotary switch is located in the first position, the two suction holes are aligned with the patient-end connector and the suction connector to thereby communicate the patient-end connector with the suction connector. When the rotary switch is located in the second position, the communication between the patient-end connector and the suction connector is shut off.

Abstract: In an airtight suction device and a rotary switch thereof, the airtight suction device includes a main body having a communication space and a plurality of connectors. These connectors include a suction connector, a respiratory connector, a cleaning connector, and a control valve connector. The rotary switch is provided on the control valve connector and includes a rotary cover and a hollow post. The hollow post has a peripheral wall and a blocking piece. The peripheral wall is provided with a pair of suction holes. The blocking piece is provided with a ventilation hole for allowing external air to flow into the suction holes.

Abstract: A suction device having a rotary switch is provided. A main body of the suction device is provided with a patient-end connector, an oxygen supply connector, a suction connector, a cleaning connector and a connecting portion. The rotary switch is assembled with the connecting portion and can be switched between a first position and a second position. The rotary switch is provided with two opposite suction holes. When the rotary switch is located in the first position, the two suction holes are aligned with the patient-end connector and the suction connector to thereby communicate the patient-end connector with the suction connector. When the rotary switch is located in the second position, the communication between the patient-end connector and the suction connector is shut off.

Abstract: An air supply assembly of an airtight suction device includes: a tubular body, an oxygen supply manifold in communication with the tubular body; a scraper fixed in the tubular body; and an air supply unit provided in the tubular body and located between the oxygen supply manifold and the scraper. An airtight suction device can further includes a tubular body, an oxygen supply manifold, a first scraper, a second scraper, and an air supply unit.