Novel simple skin stretching and closing device adapting to skin tension and stress

Abstract

The invention discloses a novel simple skin stretching and closing device adapting to skin tension-stress, and aims to disperse the stretching stress through an elastic tubular material and promote skin wound healing. The device can automatically adjust traction force according to changes of skin tension, traction stress is evenly distributed around a wound surface, local excessive traction is avoided, and therefore the pressure of the wound surface is effectively relieved, and natural healing of the skin is promoted. The device is simple in structure, utilizes the characteristics of the elastic material and the sterile nylon cable tie, does not need a power supply or a complex mechanical device, and is convenient for clinical application. Compared with a traditional traction device, the traction device has the advantages of being easy and convenient to operate, economical and practical, and is particularly suitable for skin wound healing in the fields of burn, surgical operation, plastic surgery and the like. The device provides an efficient, safe and convenient skin healing auxiliary tool for clinicians, and has a wide application prospect.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a novel simple skin stretching and closing device that adapts to skin tension and stress. The device is suitable for medical fields such as repairing skin injuries, accelerating wound healing, and recovering after plastic surgery, and has important application value in promoting skin wound healing. Background Art

[0002] With the development of skin repair technology, skin stretching has gradually become an important auxiliary means in clinical treatment, especially in the skin healing process after burns, trauma, skin transplantation and plastic surgery. Skin stretching can achieve better treatment effects by accelerating skin regeneration, reducing scar formation, and improving skin tension and elasticity. At present, there are some skin stretching devices on the market, such as traction belts, skin expanders, negative pressure wound closure devices, etc. These devices are usually used to promote healing and repair after skin injury. However, there are some technical defects in existing devices that cannot be ignored, which are specifically manifested in the following aspects: Poor adaptability: Existing devices are mostly designed for skin in specific parts, and it is difficult to adapt to the tension and stress distribution of skin in different parts. The tension and stress of the skin will vary significantly in different parts and under different conditions, which makes the traditional stretching device unable to provide accurate tension adjustment during skin repair, which may affect the treatment effect. Poor comfort: Most skin stretching devices lack personalized adjustment design, which is easy to cause discomfort when worn for a long time, such as local compression, friction and skin damage, etc., which affects the patient's compliance and even causes secondary damage. Complex operation: Existing skin stretching devices usually require complex operation, and the adjustment and maintenance during use are cumbersome, which reduces the convenience of clinical application. Strong limitations: Traditional devices cannot accurately adjust the traction force during the wound healing process, and often cannot be adjusted in real time according to the actual tension changes of the skin, which leads to limitations in the treatment effect. In order to solve the above problems, it is urgent to develop a skin stretching and closure device that can adapt to skin tension-stress changes and has good comfort. The new simple skin stretching and closure device that adapts to skin tension-stress proposed in the present invention can adjust the traction force according to the actual needs of the skin through innovative design, thereby effectively promoting wound healing and reducing the occurrence of complications, and has good clinical application prospects. Summary of the invention

[0003] The present invention relates to a skin stretching and closing device, in particular to a simple device designed for dispersing skin tension stress during skin healing. The device mainly uses elastic tubular materials and sterile nylon cable ties, and through a reasonably designed shape and structure, can effectively disperse the pulling stress, reduce the local excessive pressure that may be caused by traditional pulling devices, thereby reducing the risk of skin damage and promoting wound healing.

[0004] Key innovation: The core innovation of this device is the use of elastic tubular materials to disperse the pulling stress. In traditional skin stretching devices, the pulling force is usually concentrated in the contact area, which can easily cause excessive local pressure and lead to skin damage. The present invention uses elastic tubular materials to dynamically adjust the pressure during traction, evenly distribute mechanical stress, and reduce local pressure on the skin. At the same time, the flexibility of the design of this device enables it to automatically adapt to changes in skin tension and provide a long-lasting and stable pulling force. During the skin healing process, skin tension may change, and traditional stretching devices may not be able to adjust in time. Through elastic design, the device can effectively respond to dynamic changes in skin tension and maintain a relatively constant pulling stress, thereby promoting wound healing. Finally, the stretching and closure device of the present invention adopts a simple structural design and reduces complex mechanical components, making it more convenient to use and maintain, and suitable for clinical promotion and use.

[0005] Working principle: The working principle of this device is to automatically disperse local tension stress while applying traction force through elastic tubular materials. Specifically, the device includes a main structure part made of elastic tubular material and sterile nylon cable ties, which adjusts the distribution of traction stress through its elastic deformation. The device can cover the wound area and dynamically adapt to the changes in skin tension according to the different stages of the skin healing process. During use, the traction force can be increased by contracting the cable tie. When the device applies traction, the elastic material evenly disperses the tension to a larger range to avoid excessive stretching of a single part. This way of dispersing traction reduces the pressure of local pressure on the skin and avoids the side effects that may be caused by traditional traction devices, such as skin necrosis and poor blood circulation.

[0006] Scope of application: The present invention is applicable to the repair and healing of various skin injuries, especially to large-area skin wounds, burns, skin transplants, and situations where traction closure is required after surgery. In addition, due to its simplicity and high efficiency, the device can also be widely used in emergency treatment, burns, plastic surgery and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1: Production and use of skin stretch closure device. Figure 1 A: The device consists of elastic tubing and sterile nylon cable ties; Figure 1 B: Skin stretch bands are placed at the wound edges in sequence; Figure 1 C: Gradually shrink the stretch band to reduce the wound surface; Figure 1 D: The wound heals, the tension band is removed, and the incision is sutured interruptedly.

[0008] Figure 2: Typical application case 1, Figure 2 A: Infection and necrosis of the wound after left fibula flap removal; Figure 2B: residual wound surface after debridement of infected incision; Figure 2 C: Skin stretching after debridement; Figure 2 D: 8 days after distraction surgery, wound edges were closed; Figure 2 E: Remove the distraction band and suture the incision with interruptions; Figure 2 F: Six months after the operation, there is a slight pigmentation.

[0009] Figure 3: Typical application case 2, Figure 3 A: After debridement, the skin is damaged and the steel plate is exposed; Figure 3 B: Insertion of skin stretch band; Figure 3 C: Gradually stretch the wound and close the wound edges; Figure 3 D: Remove the tension band and perform interrupted suture. DETAILED DESCRIPTION

[0010] Device installation: Under good anesthesia, the wound surface is debrided early. The infected wound surface needs to be completely cleared of necrotic tissue. The VSD is placed for irrigation and drainage. Bacterial culture and drug sensitivity test are performed according to the wound surface, and targeted anti-infection treatment is performed. After 5 to 7 days of irrigation and drainage, the VSD can be removed for debridement again. If necessary, the VSD is replaced to continue irrigation and drainage until the infection is well controlled, the skin edge is thoroughly debrided, and the edema subsides. Use a sterile blood transfusion tube along both sides of the wound edge and parallel to the wound edge to cut two blood transfusion tubes of the same length as the wound edge. Use a sharp knife to pierce holes of the same width as the nylon tie on the walls of the two sterile blood transfusion tubes, with a hole spacing of 1.5 cm to 2.0 cm, and place them 1.0 cm away from the wound edge. At the location of the corresponding hole on the wall of the blood transfusion tube, use a sharp knife to pierce the skin and subcutaneous tissue, the size of which is suitable for passing through the nylon tie, use curved forceps to bluntly separate the subcutaneous tissue and deep fascia corresponding to the hole, remove the involvement of the local deep fascia, and use the nylon tie to penetrate the hole on the wall of the blood transfusion tube and the skin and subcutaneous tissue, across the center of the wound, and try to keep it perpendicular to the longitudinal axis of the wound. At the corresponding position on the opposite side, use a sharp knife to pierce the skin and subcutaneous tissue, and the nylon tie passes through the skin and blood transfusion hole on the opposite side in turn. Cut the self-locking buckle of another nylon tie and put it into the nylon tie that has been put on. In the same way, install simple tension bands along the wound edge in turn, rinse the wound, and cover it with sterile dressings. As shown in Figure 1.

[0011] Postoperative treatment: routine postoperative infection prevention or symptomatic treatment such as sensitive antibiotics and analgesia according to the results of drug sensitivity culture of the infected wound surface, change the wound dressing every other day, use two hemostatic forceps to shrink the nylon tie every day according to the tension, blood supply of the skin edge, blood supply of the affected limb and the patient's autonomous sensation, tighten the nylon tie 2 to 5 horizontal rows of teeth (i.e. 2mm to 5mm) every day, and shrink it 2-3 times. The skin edges on both sides of the wound surface are gradually brought closer until the two wound edges fit together, and the wound can be sutured with No. 4 silk thread interrupted. The patients in this group were stretched for 6 to 14 days, with an average of about 9 days, and the sutures were removed two weeks after the interrupted suture.

Claims

1. A new type of simple skin stretching and closing device that adapts to skin tension-stress, characterized in that: The device includes a stretching body made of an elastic tubular material and a sterile nylon cable tie. The stretching body automatically adjusts the stretching stress according to changes in skin tension and evenly distributes the stretching stress to the skin area through its elastic deformation, thereby reducing local excessive pressure and promoting skin healing.

2. The skin stretching and closing device according to claim 1, characterized in that: The stretching body is composed of an elastic tubular material and a sterile nylon cable tie, and has elastic deformation capability to adapt to different skin tensions.

3. The skin stretching and closing device according to claim 1, characterized in that: The elastic tubular material is natural rubber, polyurethane, silicone, chloroprene rubber or other polymer materials with good elasticity.

4. The skin stretching and closing device according to claim 1, characterized in that: The device can maintain a continuous traction effect by adjusting the stretching force of the elastic material according to the healing process of the skin wound.

5. The skin stretching and closing device according to claim 1, characterized in that: The design shape of the stretching body is a shape that fits the skin surface and can tightly cover the wound area.

6. The skin stretching and closing device according to claim 1, characterized in that: The device can adapt to the stretching requirements of skin in different parts by adjusting the thickness, hardness or shape of the elastic material.

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