CN202933049U - Contracture-resisting steel wire blocking ring for full-thickness skin defect wound in rodent - Google Patents

Abstract

The utility model discloses a contracture-resisting steel wire blocking ring for a full-thickness skin defect wound in a rodent. The contracture-resisting steel wire blocking ring is manufactured by a medical sterner steel wire, has the size matched with the size of the wound and has a random closed shape. By the contracture-resisting steel wire blocking ring, a phenomenon that the full-thickness skin defect wound in a rat contracts can be effectively avoided, and simultaneously, shortcomings that the blocking ring made of other materials has foreign body reaction, is difficultly fixed, has poor stability and the like are overcome; and the contracture-resisting steel wire blocking ring is simple in structure and easily manufactured and can be widely applied to animal experiment studies on wound repair.

Description

Be used for the anti-contracture steel wire of rodentine full thickness dermal wounds and intercept circle

Technical field

This utility model relates to a kind of device that prevents the wound surface contracture, especially relates to a kind of the obstruct for the anti-contracture steel wire of rodentine full thickness dermal wounds and encloses.

Background technology

Rat full thickness dermal wounds model is the conventional animal model of the depth of investigation wound repair.Mankind's wound healing is mainly to form and the reepithelialization realization by granulation tissue, and rodent is different, and it is the principal element of its deep wounds healing that the wound surrounding skin shrinks.Therefore, how to prevent effectively that the wound surrounding skin from being the key that successfully prepares the full thickness dermal wounds model to Wound Contraction.At present, there is report to make to intercept to enclose with medical silicone tube and some metal and prevents Wound Contraction, find in experiment that medical silicone tube and metal intercept the circle lay down location and have foreign body reaction, biocompatibility is not good enough, and silica gel tube is difficult for typing, be difficult to be prepared into the shape that conforms to wound surface, and because of metal lacks inertia, the shortcomings such as weight is large all are not easy to practical application.

The utility model content

Not good enough in order to overcome existing obstruct circle biocompatibility, be difficult for typing, metal lacks inertia, the large deficiency that waits of weight, this utility model provides a kind of obstruct circle, and this obstruct circle not only has the good biocompatibility through clinical verification, and easily typing, very thin, light, good stability can prevent effectively that the rat full thickness dermal wounds from shrinking.

The technical scheme that its technical problem that solves this utility model adopts is:

A kind of obstruct for the anti-contracture steel wire of rodentine full thickness dermal wounds enclosed, and described obstruct circle is to make with medical breastbone steel wire any enclosed shape that adapts with the wound surface size.

The described obstruct for the anti-contracture steel wire of rodentine full thickness dermal wounds enclosed, and described obstruct circle is square.

The described obstruct for the anti-contracture steel wire of rodentine full thickness dermal wounds enclosed, and described obstruct circle is circular.

This obstruct circle is made by medical breastbone steel wire, and medical breastbone wire quality is the 316L rustless steel, uses for the sternum suture ligation clinical, can be placed in for a long time in human body, good biocompatibility, and very thin, light, have good stability, be easily fixed in edge of wound, practical application is convenient in the utilization of can repeatedly sterilizing, and has simultaneously good toughness and certain hardness, the shape that easy preparation conforms to wound surface and not yielding, the fine shortcoming that avoid medical silicone tube and other metal materials of energy.

The beneficial effects of the utility model are, when can prevent effectively that the rat full thickness dermal wounds from shrinking, overcome foreign body reaction and the shortcomings such as difficulty is fixing, poor stability of the obstruct circle of other material preparations, and simple in structure, easily prepare, can be widely used in the animal experiment study of wound repair.

Description of drawings

Fig. 1 is molding structure figure of the present utility model;

Fig. 2 intercepts the cross-sectional configuration figure that circle is implemented in the suture way of rat wound surface;

Fig. 3 is the top view that intercepts in circle enforcement.

1. breastbone steel wires in figure, the obstruct circle of 2. making, 3. wire loop and wound surface scope; 4. full thickness dermal wounds; 5. the subcutaneous fixedly wire loop of wound surface inner edge; 6. transplant the allograft skin that burrows.

The specific embodiment

A kind of obstruct for the anti-contracture steel wire of rodentine full thickness dermal wounds enclosed, and intercepting circle is to make with medical breastbone steel wire any enclosed shape that adapts with the wound surface size.

Be used for the anti-contracture steel wire of rodentine full thickness dermal wounds and intercept circle, wherein intercept circle and be square or circular.

Breastbone steel wire 1 is prepared into theobstruct circle 2 of wound surface size, ketamine mixes with the new 2:1 of speed dormancy, by 80 ~ 100ug/kg intraperitoneal injection of anesthesia rat, shaves clean Mus hair, the iodophor disinfection skin of back, and the paving aseptic towel is single.Measure 3cm * 3.3cm(lengthwise horizontal stroke at the back with ruler short) skin scope 3, periphery methylene blue solid marks, the holostrome skin in excision solid marks scope forms full thickness dermal wounds 4 to the deep fascia layer, the skin that downcuts is trimmed to middle pachydermia punching, puts in normal saline standby.It is subcutaneous that the subcutaneous fixedly wire loop of rat wound surface inner edge 5 adopts the vertical matress suture methods to tie to be fixed in all skin of wound to be fixed in simultaneously, stays pack thread.Thick allograft skin 6 during the rat wound surface is transplanted, the gauze packing is fixing.The clinical follow wound surface uses the rat wound surface that intercepts circle to have no obvious contraction.

Above structure of the present utility model is set forth, but the embodiment that this utility model is introduced in this not conditional intention, in the scope that does not deviate from this utility model purport, this utility model can have multiple variation and modification.

Claims (3)

1. one kind is used for the anti-contracture steel wire obstruct of rodentine full thickness dermal wounds circle, and it is characterized in that: described obstruct circle is to make with medical breastbone steel wire any enclosed shape that adapts with the wound surface size.

2. according to claim 1 the obstruct for the anti-contracture steel wire of rodentine full thickness dermal wounds enclosed, and it is characterized in that: described obstruct circle is square.

3. according to claim 1 the obstruct for the anti-contracture steel wire of rodentine full thickness dermal wounds enclosed, and it is characterized in that: described obstruct circle is for circular.

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