Disposable negative pressure drainage apparatus

Abstract

The invention discloses a disposable negative pressure drainage apparatus, and belongs to the technical field of medical apparatuses. The disposable negative pressure drainage apparatus comprises a negative pressure drainage container body including a top wall, a bottom wall and a seal sleeve; a group of springs, distributed in the cavity of the negative pressure drainage container body; a drainage tube seat, fixed to one side, with the back towards the cavity, of the top wall; a drain port, fixed to one side, with the back towards the cavity, of the top wall. One end of the drainage tube is matched and connected with the drainage tube seat while the other end is connected to one end of a collecting tube, the other end of the collecting tube is matched and connected with a puncture knife; the disposable negative pressure drainage apparatus is characterized in that a liquid inlet valve seat is formed on the top wall corresponding to the position of the drainage tube seat, a backflow-resistant liquid inlet check valve is arranged corresponding to the position of the liquid inlet valve seat, the seal sleeve is a transparent seal sleeve, and the seal sleeve is provided with scale marks in the height direction. According to disposable negative pressure drainage apparatus, hydrops which is drained from the body of a patient and enters into the cavity is prevented from flowing backwards, and medical staffs can correctly master the drainage volume of the patient; the middle part of the group of springs is prevented from bulging, and the springs are reliably matched with the top and bottom walls; drainage effect is excellent, and drainage time can be shortened.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a disposable negative pressure drainage device. Background technique [0002] Disposable negative pressure drainage device is mainly used for the drainage after puncture operation of chest cavity and abdominal cavity patients, and in order to facilitate the doctor's operation, it is usually equipped with a puncture knife as a puncture instrument in the form of a "package". It has been reported in the patent literature that the typical multifunctional thoracoabdominal puncture negative pressure drainage device recommended by CN2782100Y consists of a three-way tube, a drainage tube and a negative pressure drainage container (the patent is called a negative pressure drainage device). The negative pressure drainage container is a simple wrinkled body structure, so the following technical problems will be exposed during use: when the air in the negative pressure...

AI Technical Summary

Problems solved by technology

It has been reported in the patent literature that the typical multifunctional thoracoabdominal puncture negative pressure drainage device recommended by CN2782100Y consists of a three-way tube, a drainage tube and a negative pressure drainage container (the patent is called a negative pressure drainage device). The negative pressure drainage container is a simple wrinkled body structure, so the following technical problems will be exposed during use: when the air in the negative pressure drainage container is driven out and is in a deflated state, that is, it is often difficult to relax after being in a negative pressure state Concern

However, there are still the following shortcomings: First, because the drainage tube seat arranged on the top wall does not have the function of preventing backflow, there is a risk of backflow of liquid in the cavity, especially when the accompanying person is not aware of it and / or due to operation When the position of the negative pressure drainage container body is improperly moved to a position higher than the patient's chest and abdominal cavity, the effusion that was previously introduced into the cavity of the negative pressure drainage container body by the drainage tube, that is, from the patient's chest cavity or peritoneal cavity, will flow in a reverse direction. The way back into the patient's chest or abdominal cavity, causing accidents that endanger the patient's life; the second is because although the sealing sleeve located between the top wall and the bottom wall is transparent and can visually estimate the amount of fluid in the cavity, but for The estimation of effusion is not correct, which is not conducive to medical staff to correctly grasp the patient's course of disease, affect the effect of drug administration and treatment; In links such as transportation and storage, there is a risk of puncturing the packaging or even damaging human limbs; fourth, because the structure of the puncture knife itself is unreasonable, it is not conducive to the surgeon to bend out the required parts during the operation. The angle is also not conducive to improving the puncture speed

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