Negative pressure suction device

Abstract

The invention provides negative pressure suction equipment. The negative pressure suction equipment comprises a collection container, a drainage catheter, a negative pressure source, a negative pressure suction pipeline, a pressure detection pipeline and a control unit; wherein one end of the negative pressure suction pipeline is communicated with the liquid collecting cavity of the collecting container, the other end of the negative pressure suction pipeline is communicated with the negative pressure source, so that when the negative pressure suction equipment is powered up, the negative pressure source provides negative pressure so that liquid and / or gas in the chest of the human body can be drained into the liquid collecting cavity through the drainage catheter, and the air in the liquid collecting cavity is pumped to the outside through the negative pressure pipeline to realize the pumping and drainage operation of the pleural effusion of the human body. Besides, a pressure detection unit is arranged in the pressure detection pipeline and used for detecting the gas pressure in the collection container, and the control unit receives a detection result fed back by the pressure detection unit, compares the detection result with preset information and adjusts a negative pressure value output by the negative pressure source according to a comparison result, so that the gas pressure in the liquid collection cavity is kept stable; therefore, stable negative pressure is ensured in the chest drainage process of a patient, and the drainage effect is better.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a negative pressure suction device. Background technique [0002] Negative pressure suction equipment is for traumatic pneumothorax, after cardiac or thoracic surgery, as well as chest injury, pleural effusion, pleural effusion or other related conditions for pleural and mediastinal drainage. [0003] The current domestic solution is to provide a negative pressure source at the head of the bed, connect the disposable chest drainage device to the negative pressure source through a flexible tube, and then connect the drainage tube of the disposable chest drainage device to the patient. The suction of the negative pressure source generates negative pressure in the collection container, which can suck out the residual pleural fluid and air as soon as possible, so that the negative pressure in the pleural cavity can be quickly formed, and the recovery speed of the patient can be accel...

AI Technical Summary

Problems solved by technology

[0004] However, since the negative pressure source provided by the bedside is not specially designed for chest cavity suction, its negative pressure fluctuates greatly, resulting in unstable negative pressure.

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