Multilayer negative-pressure closed drainage wound protecting device
A negative pressure and drainage tube technology, which is used in wound drainage devices, medical science, dressings, etc., to achieve the effect of stable permeability, improved effect, and convenient drainage.
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[0023] The following describes the implementation of the present invention in detail with reference to the accompanying drawings, but they do not constitute a limitation to the present invention, and are merely examples. At the same time, through the description, the advantages of the present invention will become clearer and easier to understand.
[0024] Such as figure 1 , figure 2 : The multi-layer negative pressure closed drainage wound care device of the present invention includes a porous foam cushion 1 and a drainage tube 3 with one end located in the porous foam cushion 1. The porous foam cushion 1 is a multilayer composite foam cushion, which at least includes The negative pressure conductive layer 1a and the drainage protective layer 1b, the negative pressure conductive layer 1a is a hydrophobic porous foam material layer, the drainage protective layer 1b is a hydrophilic porous foam material layer, and the drainage tube 3 is placed in the negative pressure conductive l...
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