Negative pressure drainage system for wound

Abstract

The present invention proposes a negative pressure drainage system for wounds, including polyethylene alcohol hydration sponge, medical wound film, drainage tube and negative pressure drainage device, medical PVC bag is arranged on polyethylene alcohol hydration sponge, medical PVC bag and polyethylene The side wall contacted by the alcohol hydration sponge is provided with a plurality of drainage holes in a rectangular array, the opening of the medical PVC bag is connected with a drainage tube joint, and the medical wound film completely covers the medical PVC bag and the polyethylene alcohol hydration sponge; The negative pressure drainage device is a negative pressure drainage bag device, and its negative pressure ball is set separately; the drainage tube joint of the medical PVC bag is connected with the drainage interface of the negative pressure drainage bag device through the drainage tube. The present invention sets medical PVC bag as the transition carrier of negative pressure drainage, and forms multi-point contact on polyethylene alcohol hydration sponge to ensure comprehensive and thorough drainage; the negative pressure ball of the negative pressure drainage bag device is set separately, and the negative pressure ball can be repeated Use to further ensure smooth drainage.

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, a

Images