Disposal negative pressure drainage device

Abstract

The invention provides a disposal negative pressure drainage device, and belongs to the field of medical appliances. The drainage device comprises a negative pressure drainage device body, a plurality of springs and a drainage tube, wherein the negative pressure drainage device body is composed of a top wall, a bottom wall and a seal gasket; the plurality of springs are arranged in the cavity of the negative pressure drainage device body, the upper end of each spring is supported on the top wall, and the lower end of each spring is supported on the bottom wall. The drainage device is characterized in that one side, facing the cavity, of the top wall is provided with a group of upper spring seats, and one side, facing the cavity, of the bottom wall is provided with a group of lower spring seats; each spring is a pagoda-shaped spring with one larger end and one smaller end, the smaller end of each spring is supported on the upper spring seat, while the larger end of each spring is supported on the lower spring seat; collecting holes communicated with the cavity of the drainage tube are distributed on a drainage tube body of one end, placed into the chest or abdomen of a patient, of the drainage tube in a use state; and a puncture instrument is arranged on the end, on which the collecting holes are distributed, of the drainage tube. The drainage device has the advantages that middle bulging of the springs is prevented, the springs are reliably matched with the top wall and the bottom wall, and a cigarette-holder-type draining effect can be played so as to shorten the drainagetime.

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 of thoracic cavity and abdominal cavity patients after puncture operation. It has been reported in the patent literature. A typical example is the multifunctional thoracoabdominal puncture negative pressure drainage device recommended by CN2782100Y. It consists of a three-way tube, It consists of a drainage tube and a negative pressure drainage container (the patent is called a negative pressure drainage device). Since the negative pressure drainage container of this patent is a simple wrinkled body structure, the following technical problems will be exposed during use: When the negative pressure drainage container After the air inside is driven out and is in a deflated state, that is, in a negative pressu...

AI Technical Summary

Problems solved by technology

[0002] Disposable negative pressure drainage device is mainly used for drainage of thoracotomy and abdominal cavity patients after puncture operation. It has been reported in patent literature, typical as recommended by CN2782100Y The multifunctional thoracoabdominal puncture negative pressure drainage device is composed of a three-way tube, a drainage tube and a negative pressure drainage container (the patent is called a negative pressure drainage device). 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, after being in a negative pressure state, it is often difficult to relax

The common deficiency of these two patents is that the structure of the spring itself is unreasonable. From the schematic structures of these two patents, it can be seen that the spring is a structure with equal diameters up and down. When the negative pressure drainage container is pressed, the air will be driven out. , the middle part of the spring will bulge, and there will be a phenomenon of twisting and damaging the negative pressure drainage container; neither of the two patents discloses how to fix the upper and lower ends of the spring to the top and bottom walls of the negative pressure drainage container, because, If the upper and lower ends of the spring cannot cooperate well with the aforementioned top and bottom walls, it is very likely that the spring will break the top and bottom walls; The patent claims that the structure of the puncture needle) is unreasonable. The specific performance is that the pleural effusion after the puncture can only be led to the negative pressure drainage container through the drainage tube by the needle. This drainage method is single-point, that is, single-channel drainage ( Only from the needle), so the drainage process is lengthy, which is not conducive to shortening the treatment time of patients with puncture

Images