Disposable automatic exhaust suction type negative pressure drainage collector

By designing an automatic exhaust suction negative pressure drainage collector including negative pressure ball, emission switch, connection pipe, emission container, check valve, pressure detection element, control center and air pump motor, the problems of insufficient negative pressure and inconvenient operation in the prior art are solved, and the effect of automatic adjustment of negative pressure and anti-pollution is achieved.

CN119680031APending Publication Date: 2025-03-25XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
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Patent Information

Application Number
CN202510155894.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

During use, existing negative pressure drainage devices are prone to insufficient negative pressure due to excessive gas in the stomach, which requires repeated manual operation by nurses, which can easily cause body fluid contamination and it is difficult to maintain negative pressure in the best state.

Method used

A disposable automatic exhaust gas suction type negative pressure drainage collector is designed, which uses negative pressure balls, emission switches, connecting pipes, emission containers, one-way valves, pressure detection elements, control centers and air pump motors. The one-way flow of liquids and gases is ensured through the one-way valves and pressure detection elements, and the control center automatically adjusts the air pump motor and pressure adjustment device to maintain the optimal negative pressure.

Benefits of technology

Automatically adjust the negative pressure, avoiding operational inconvenience caused by insufficient or excessive negative pressure, ensuring unidirectional flow of liquid and anti-pollution of the system, reducing the frequency of manual operation of nurses, and improving operation safety and efficiency.

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Abstract

The invention discloses a disposable automatic exhaust suction type negative pressure drainage collector, and belongs to the technical field of drainage collectors, the disposable automatic exhaust suction type negative pressure drainage collector comprises a negative pressure ball and a negative pressure device, the lower end of the negative pressure ball is connected with a discharge switch, the lower end of the discharge switch is provided with a connecting pipe, and the lower end of the connecting pipe is connected with a discharge container; meanwhile, a first one-way valve is arranged at the upper end of the discharging container, the upper end of the negative pressure ball is connected with a first deflation pipe, a second one-way valve is arranged at the upper end of the negative pressure ball and connected with a second deflation pipe, one end of the second deflation pipe is connected with a pressure detection element, and the lower end of the negative pressure device is connected with a bottom plate; the first one-way valve is arranged at the upper end of the discharging container, liquid backflow or unsmooth discharging caused by pressure change in the drainage process is prevented, it is ensured that liquid can only flow in one direction, the second one-way valve is arranged on the second deflating pipe, it is ensured that gas can only be discharged in one direction, external air is prevented from entering a negative pressure system, and pollution and pressure unbalance are prevented.
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