Multi-point negative pressure drainage device

Abstract

The invention discloses a multi-point vacuum drainage device which is applicable to wound therapy for the surface of a human body and comprises PU (polyurethane) wound dressing. A large sucker and at least two small suckers are placed on the surface of the PU wound dressing, the large sucker is positioned in the middle of the PU wound dressing, the small suckers are distributed on the periphery of the large sucker, at least two jacks are formed in each of the large sucker and the small suckers, a head plug of an outer drainage tube and head plugs at two ends of a double-head guide tube are conical, the head plugs can be inserted into an optional jack and can be hermetically connected into the optional jack, the tail of the outer drainage tube is connected with a drainage container by a straight joint, and the drainage container is connected with a vacuum source by a guide tube. The multi-point vacuum drainage device with the structure has the advantages that the problem of air leakage of an extending portion of a drainage tube during vacuum drainage operation is solved, liquefied substances are drained by the large sucker and the small suckers in a multi-point manner, accordingly, a vacuum drainage effect of the vacuum drainage device is improved, and the service life of the vacuum drainage device is prolonged.

Description

technical field [0001] The invention relates to a medical negative pressure drainage device, in particular to a multi-point negative pressure drainage device suitable for treating human body surface wounds. Background technique [0002] Negative Pressure Sealing Drainage Technology (VSD for short) is a brand-new treatment method that promotes wound healing through controllable negative pressure, and has been widely used in medicine. The basic configuration of existing negative pressure drainage devices includes negative pressure source , drainage tube, porous foam cushion, bio-semipermeable membrane and drainage container, a drainage tube is arranged in the porous foam cushion, and a plurality of small holes are distributed on the side wall of the drainage tube. When in use, the porous foam cushion is placed on On the wound surface, cover the porous foam cushion with a biological semipermeable membrane, seal the porous foam cushion and the drainage tube together on the human...

AI Technical Summary

Problems solved by technology

[0003] The main disadvantage of the negative pressure drainage device with the above structure is: during use, when the biosemipermeable membrane seals the porous foam cushion and the drainage tube on the human body together, the gap between the drainage tube at the edge of the biosemipermeable membrane and the surface of the human body There will inevitably be a certain gap between the drainage tube and the surface of the human body, which will affect the effect of negative pressure drainage.

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