Negative pressure drainage system for wound

Abstract

The invention brings forward a negative pressure drainage system for a wound. The negative pressure drainage system comprises a polyethylene alcohol hydration sponge, a medical wound film, a drainagetube and a negative pressure drainage device, wherein a medical PVC bag is mounted on the polyethylene alcohol hydration sponge; a plurality of drainage holes are formed in a rectangular array in theside wall of one surface where the medical PVC bag contacts with the polyethylene alcohol hydration sponge; a drainage tube joint is connected to an opening of the medical PVC bag; the medical PVC bagand the polyethylene alcohol hydration sponge are fully covered with the medical wound film; the negative pressure drainage device is a negative pressure drainage bag device and a negative pressure ball is independently arranged; and a drainage tube joint of the medical PVC bag is connected with a drainage joint of the negative pressure drainage bag device. The medical PVC bag works as a transition carrier for negative pressure drainage; multi-point contact is formed on the polyethylene alcohol hydration sponge, so comprehensive and thorough drainage can be obtained; the negative pressure ball of the negative pressure drainage tube bag device is independently arranged, so the negative pressure ball can be repeatedly utilized; and drainage smoothness can be further guaranteed.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a wound negative pressure drainage system. Background technique [0002] Purpose of surgical drainage: Drained fluids can be divided into two categories: infectious and non-infectious. After the infectious fluid (referring to the pus) is drained, it can reduce pressure, relieve pain, reduce inflammation, prevent the spread of inflammation, and help the inflammation to subside. Non-infectious fluids include blood, exudate, and tissue secretions. After drainage, it can reduce local pressure, reduce the damage of fluids to surrounding tissues, reduce the possibility of co-infection, and facilitate wound healing. [0003] In clinical practice, acupuncture on the transparent medical wound film directly into the medical sponge is often used, which is likely to cause iatrogenic infection and destroy the sealing of the system. [0004] Good airtightness is the key to ensuring the drainag...

AI Technical Summary

Problems solved by technology

This device achieves the purpose of closed drainage, but the drainage tube is directly placed on the top of the medical sponge, and the opening of the drainage tube only contacts with the part of the medical sponge. When the drainage liquid is thick, a part of the pores of the medical sponge are blocked, and The drainage is not smooth and the drainage is not thorough; moreover, this kind of negative pressure closed drainage device is easy to contaminate the negative pressure source, and the negative pressure source needs to be cleaned and disinfected after use, which brings inconvenience to the nursing work

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