Double-hole type sucker negative pressure drainage device

Abstract

The invention provides a double-hole type sucker negative pressure drainage device which is suitable for large-area wound therapy in a human body or the body surface of the human body. The double-hole type sucker negative pressure drainage device comprises multi-hole wound dressing, an integral external sucker and a biological semipermeable membrane, wherein the integral external sucker comprises a sucker body, a sucker connecting membrane, a drainage outer pipe and a washing pipe, an attraction hole is formed in the bottom of the sucker body, a drainage channel and a washing channel are arranged inside the sucker body, and the sucker body is placed on the biological semipermeable membrane provided with a through hole; the sucker connecting membrane covers the sucker body, and a position, stretching out of the sucker body, of the sucker connecting membrane is pasted with the biological semipermeable membrane; the drainage channel is communicated with the drainage outer pipe, and the drainage pipe is connected with a drainage container and a negative pressure source; the washing channel is communicated with the washing pipe, and the tail end of the washing pipe is further provided with a sealing cover. The double-hole type sucker negative pressure drainage device has the advantages that the problem that the drainage outer pipe and the washing pipe are easily blocked is thoroughly resolved, negative drainage effects and washing effects are improved, and wound concrescence can be well promoted.

Description

technical field [0001] The invention relates to a negative pressure drainage device, in particular to a double-hole sucker negative pressure drainage device suitable for treating inside or on the body surface of a human body and large-area wounds. Background technique [0002] Negative pressure sealing drainage technology (referred to as VSD), refers to the use of porous wound dressings to cover or fill the wounds with skin and soft tissue defects, and then seal them with biological semi-permeable membranes to make them a closed space. It is a brand-new treatment method that promotes wound healing by connecting negative pressure source through controllable negative pressure; this therapy can accelerate the blood circulation of the wound site, significantly promote the entry of new blood vessels into the wound, stimulate the production of granulation tissue, and fully drain, Reduce edema, reduce wound pollution, and promote wound healing. [0003] The sucker-type negative pr...

AI Technical Summary

Problems solved by technology

[0004] The main disadvantage of the sucker-type negative pressure drainage device with the above structure is that the front end of the irrigation tube is arranged inside the outer drainage tube, and the irrigation tube not only occupies the effective space in the outer drainage tube, but also The inside is connected, which makes it easy for the pus, tissue fluid and other substances sucked under the negative pressure to block the drainage tube and the nozzle of the irrigation tube, so that the negative pressure drainage and irrigation can not be carried out normally, resulting in the necrosis in the closed space. If bacteria and bacteria cannot be absorbed and removed in time, the wound surface may be reinfected, which directly affects the healing of the wound surface

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