Anti-infection expander

Abstract

The invention discloses an anti-infection expander. The anti-infection expander comprises a connecting catheter, an expanding bag, an external injection pot and a flushing catheter, wherein the expanding bag and the external injection pot are connected to the two ends of the connecting catheter; the materials of the expanding bag, the connecting catheter and the flushing catheter are modified silicone rubber of which the surface is injected with silver ions; the expanding bag comprises a bag body and a thickened base arranged on the bottom surface of the bag body; the edge of the bag body is protruded out of the edge of the thickened base; the middle section of the flushing catheter is wound on the outer side of the thickening base; a flushing hole is formed in the outer side wall of the middle section of the flushing catheter; two side sections of the flushing catheter extend out of the expanding bag; and two ends of the flushing catheter are separately connected with a one-way injection valve. The anti-infection expander is convenient to use and operate, and the infection probability of skin soft tissues in an expanding process can be reduced effectively.

Description

Technical field [0001] The invention relates to the technical field of skin soft tissue expansion devices, in particular to an anti-infection expander. Background technique [0002] Skin expansion, also known as skin soft tissue expansion, refers to the implantation of a skin soft tissue expander under normal skin and soft tissues, and regular injection of liquid into the expander through an injection pot to increase the expansion capacity and cause it to exert pressure on the surface skin and soft tissues. A series of expansion mechanisms act on the local area to increase the skin area. After the expansion capsule is removed, the newly added skin and soft tissue can be used for tissue repair and organ reconstruction. Skin expansion is widely used in plastic repairs, such as nose reconstruction, ear reconstruction and partial breast reconstruction; some surface tumors, tattoos or trauma, scars after burns; skin and soft tissue defects, bone exposure, bedsores, etc. [0003] The so...

AI Technical Summary

Problems solved by technology

[0005] 1. The dilator currently used in clinical plastic surgery is a cystic structure made of medical silicone rubber. Due to the strong hydrophobicity and other factors of silicone rubber itself, it is compatible with tissues and cells Poor, not well combined, easy to form gaps between materials and tissues, which allows bacteria to invade through various channels and cause infection. In addition, the hydrophobicity of the surface of silicone rubber makes bacteria easy to adhere, making it easier cause infection;

[0006] 2. Hematoma and effusion. After the dilator is inserted, there are a large number of potential spaces between the dilator and the tissue. If intraoperative hemostasis is not complete, postoperative hemorrhage and oozing interstitial fluid will accumulate in this space. If not If there are good hemostatic measures or drainage measures, it will lead to the formation of hematoma and effusion, and the interstitial fluid of hemorrhage and exudation contains a lot of nutrients, which is a good medium for bacteria, which will in turn cause infection

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