Skin tissue outward expander

Abstract

The invention discloses a skin tissue expander, comprising an absorption pan body and a second permanent magnet, wherein the absorption pan body is internally provided with an axially moving tension part; the tension part is connected with the absorption pan body or a movable par installed on the absorption pan body in a screwing way; the tension part is provided with a first permanent magnet; the second permanent magnet is externally packed with a layer of human body compatible material or inert material. Compared with the existing skin tissue expander, the permanent magnet embedded under the skin tissue and the permanent magnet embedded on the absorption pan body generate magnetic field magnetism due to inverse magnetic poles, so that the second permanent magnet embedded under the skin tissue drives the skin tissue to be outwards expended, to lead the skin tissue to be outwards swelled to form an expanding effect, and prevent the existing expander from inwards expensing to stress adjoining tissues, blood vessels and nerves or organs, and not to sink base tissues.

Description

technical field [0001] The invention belongs to plastic medical equipment, in particular to a skin soft tissue external expander. Background technique [0002] Defects of skin and soft tissues, such as tumors, scars, deformities and injuries, need to be repaired with autologous skin and soft tissues. In order to obtain autologous skin soft tissue, one of the methods is to proliferate or migrate the skin soft tissue of a certain part of the human body through skin expansion to obtain "extra" skin soft tissue, and then transplant this part of skin soft tissue to the defect site. Chinese patent 02134965.7 discloses a skin and soft tissue expansion device. During the operation, the expansion bag of the device is embedded under the skin soft tissue, and a pressure device is used to inflate the expansion bag through a connecting tube, so that the outer skin soft tissue proliferates or migrates. Gain "extra" skin and soft tissue. There are also devices that expand the skin by inj...

AI Technical Summary

Problems solved by technology

[0003] 1. The pressure generated during the expansion of the expansion sac is equal in all directions. In addition to generating expansion pressure on the skin, it will also compress surrounding tissues, blood vessels, nerves or organs and cause unnecessary side effects;

[0004] 2. If the base of the expansion area is in a part rich in fat and muscle, such as the neck, face, abdomen, limbs, etc., it will cause unfavorable expansion and ineffective expansion of basement collapse;

[0005] 3. Air leakage (fluid) and rupture may occur during the expansion process of the expansion sac, which may lead to the failure of the expansion operation;

[0006] 4. It is cumbersome to gradually inflate or fill water in batches, and the device must be equipped with auxiliary equipment such as pressure gauges, water pumps, disposable syringes, sterile saline, etc., making the device complicated, high in cost, and inconvenient to carry

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