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Medical negative pressure suction device, also known as suction device (negative pressure suction system), is a commonly used and necessary rescue equipment in clinical departments. The operating room is an important place for the treatment of various surgical diseases, and it is used frequently.

The negative pressure suction device in the operating room is used to attract the bleeding, exudate, pus, contents in the cavity organs and flushing liquid during the operation, so that the field of vision is clear during the operation, reduce the chance of contamination, and can also be used for suction sputum in patients with general anesthesia.

The negative pressure suction device in the operating room uses the working principle of vacuum to generate negative pressure in the cavity, so as to guide the liquid in the cavity to achieve the purpose of sewage purification. The central negative pressure suction device widely used in the operating room of the hospital is formed by the central pumping station, connected to each operating room through the closed suction pipe, and maintains a constant negative pressure for 24 hours for drainage, sputum discharge, blood and secretions.

The suction force and working stability of negative pressure suction system are directly related to the process of operation. At present, the rotary disc vacuum unit and oil screw vacuum unit designed by Quanxia are widely used in hospital operating rooms.

Oil vane vacuum suction system is mainly composed of oil vane vacuum pump, vacuum tank, negative pressure automatic control cabinet, pollution collection tank, filter, sound and light alarm, valve instrument, connecting pipe and suction terminal.

Working principle and characteristics:

1. The negative pressure source is the oil vane vacuum unit of the central suction station. Through the suction of the oil vane vacuum pump, the suction system pipeline reaches the required negative pressure value, which provides negative pressure, suction of blood, sputum, pus and other body dirt for the terminal of the operating room, rescue room and various wards.

2, the oil rotary vacuum suction station is designed into a dual system, two vacuum pumps one work, one standby, when the vacuum flow is insufficient, two can also work at the same time.

3, self-start and remote sound and light alarm function.

4, energy saving and environmental protection, no water.