Buckle type skin stretching device and skin stretching method

Abstract

The invention provides a buckle type skin stretching device and a skin stretching method. The device comprises a fixing member, a fixed stretching member and a suture buckle, wherein the fixing membercomprises a fixing-end main body, a plurality of soft tissue fixing needles are connected below the fixing-end main body, and a traction suture is arranged at the intersection of the soft tissue fixing needles. The fixed stretching member comprises a fixed-stretching-end main body, a sealing fixing piece and a guiding noose, wherein the upper portion of the interior of the fixed-stretching-end main body is provided with a cavity accommodating the sealing fixing piece; the lower end of the cavity is connected with a plurality of intradermal fixing needles; the sealing fixing piece is internally provided with a long hole through which the guiding noose penetrates; the upper portion of the fixed-stretching-end main body is provided with a round hole from which the guiding noose stretches out. The suture buckle comprises a handle and a suture buckle ring, and the tail end of the handle is connected with the front end of the suture buckle ring. The buckle type skin stretching device has the advantages that a wound surface is quickly closed, complications are reduced, all skin organs and corresponding functions thereof are reserved, and the device is easy to operate without damaging other healthy skin tissue and can be matched with a VSD device for use, reduce discomfort of patients and increase the recovery speed.

Description

technical field [0001] The invention relates to medical equipment, in particular to a buckle-type skin stretcher and a skin stretching method. Background technique [0002] Skin and soft tissue defect is a common surgical problem in clinical practice. There are many reasons for it, such as tumor, scar, trauma, inflammation, operation and skin lesions. The common method is that direct suture is often used clinically for skin and soft tissue defects with low local wound skin tension and small area. For skin defects with large local defects or large wound skin tension, direct suture is usually not used clinically, and other methods are used. Methods Repair and rebuild the wound. [0003] At present, the methods and deficiencies of existing clinical wound repairing and reconstruction methods include: [0004] 1. The split skin method is used, but because the skin organs carried by the skin graft are incomplete, poor elasticity of the grafted skin and skin pigmentation are pron...

AI Technical Summary

Problems solved by technology

[0004] 1. The split skin method is used, but because the skin organs carried by the skin graft are incomplete, poor elasticity of the grafted skin and skin pigmentation are prone to occur after surgery

[0005] 2. Since the full-thickness skin graft includes the whole layer of the dermis, the change after transplantation is small. However, when the area of ​​the skin is too large, it is necessary to take another split skin to repair the wound, which will cause secondary damage

[0006] 3. Flap transplantation or transfer surgery will cause great trauma to the donor area, and there are certain requirements for the age of the patient, the condition of the blood vessels in the donor area, the condition of the surrounding soft tissue, and the condition of medical diseases, and it has high requirements for the doctor's medical skills. Certain microsurgery knowledge and techniques, and high postoperative management requirements, so the failure rate of surgery is high, and it is difficult for primary hospitals to carry out

It is considered to be a landmark achievement in the history of the development of tissue repair methods. It has incomparable advantages over traditional repair methods, but the treatment cycle is long and the complication rate is quite high.

[0008] 5. Tissue-engineered skin products such as tissue-engineered skin are artificial dermis made by mixing dermal fibroblasts with extracellular matrix substitutes, or using porous extracellular matrix instead of dermis to implant wounds, and transplanting epithelial cells to cover or treat themselves The epithelial covering replaces the skin of the lesion. There are three types: epidermal substitutes, dermal substitutes and whole skin substitutes. Full functionality, no real skin reconstruction yet

[0012] 1. Some domestic skin stretchers cannot stretch irregular wounds

[0013] 2. Some domestically-made skin stretchers cannot adjust the stretching force of the unit wound surface, but can only be adjusted in the form of surface, so that the stretching force of the skin in the middle of the wound is easy to be too large, and the skin at both ends of the wound forms a squeezing force, so that the skin iatrogenic necrosis

[0014] 3. Almost all skin stretchers cannot be used with VSD

[0015] 4. It cannot be used as the ultimate suture method, and the wound surface needs to be sutured with general surgical sutures or skin nails in the second stage

[0016] 5. Most of the skin retractors are metal structures, which are large in size, heavy in weight, and high in cost. They can block X-rays and cannot be used for MRI examinations. It is very inconvenient for orthopedic patients to perform related examinations.

[0017] 6. There are skin allergies in the adhesive skin stretcher, and tension blisters are likely to occur during the traction process

[0018] 7. Poor reproducibility, unable to meet the needs of a large number of low-cost industrial production

[0019] 8. Some skin retractors only perform superficial traction, resulting in unbalanced stress on the skin and inner soft tissue. The superficial traction area has a large traction force and stretches and crawls faster, while the traction force on the deep tissue is small, and the stretching and crawling is slow. The growth speed of the layers of soft tissue is inconsistent, and the epidermis tends to turn inward to the wound to form pseudo-healing of the skin

[0020] 9. The mechanical structure of some skin stretchers is too complicated, and it is easy to accumulate wound secretions in clinical use, causing a large number of microorganisms to grow, and general bedside dressing changes cannot be thoroughly disinfected

[0021] 10. Some skin retractors are too large in size and heavy in weight, which makes it inconvenient for patients to go to the ground in the early stage

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