Double-reverse traction skin expander and application method thereof

A skin expansion and reverse technology, applied in the direction of wound clips, etc., can solve problems that affect wound dressing and bandaging, easily cause infection, and tear the skin edge

Pending Publication Date: 2019-02-19
吴丹凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing skin expanders directly pull the skin edge locally to complete the expansion of the skin. This direct pulling method is likely to cause tearing or necrosis of the skin edge
The dilator crosses the skin defect area, which affects the dressing change and dressing of the wound, and is easy to cause infection

Method used

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  • Double-reverse traction skin expander and application method thereof
  • Double-reverse traction skin expander and application method thereof
  • Double-reverse traction skin expander and application method thereof

Examples

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Embodiment Construction

[0012] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the present invention is a double-reverse pulling skin expander, including: a double-reverse pulling device 1 , a suture fixing device 2 , a steel cable 3 , and a hook 4 . The double reverse pulling device 1, the main part is a sleeve 11 and two screw rods 12, 13, the sleeve is a hexagonal hollow stud, that is: external hexagonal, internal thread setting; the first screw rod 12 and the second screw rod 13 Threads in different directions are provided, that is, the first screw 12 is provided with left-handed threads, the second screw 13 is provided with right-handed threads, and the two screws and the sleeve are respectively socketed together through matching threads. The ends of the first screw 12 and the second screw 13 are provided with vertical connecting rods 121, 131, and the ends of the connecting rods are provided with tunnels 122, 132, the ends of the steel cables can be inserted into the tunnels,...

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PUM

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Abstract

The invention discloses a skin expander and an application method thereof. The skin expander structurally comprises a double-reverse traction device, suture fixation devices, steel cables and hooks, wherein the suture fixation devices arranged symmetrically are fixedly stitched to skin on both sides of a wound; the steel cables are mounted in a sleeve mode onto the suture fixation devices; both sides of the double-reverse traction device are connected with the steel cables symmetrically arranged. The double-reverse traction device enables the two arc steel cables symmetrically arranged to tendto move close each other, namely, to produce double-reverse traction force, which indirectly draw skin on both sides of the wound to gradually stretch towards the central line, and then symmetric skin flaps can slowly move close to each other and finally close the wound.

Description

technical field [0001] The invention relates to the field of medical devices for wound repair, in particular to a medical device for skin expansion. Background technique [0002] In clinical work, orthopedic surgeons often face the problem of limb skin and soft tissue defects. The wound is closed by means of local dressing change, skin grafting, local flap transfer, and free flap transplantation. The above-mentioned methods require a high level of microsurgical skills for the operator, and the surgical risk is relatively high. They often face scarring at the donor site, and the affected area is often affected. Area sensory loss, pigmentation and other problems. [0003] The theory of skin stretching technology means that the skin has stretchability when it is pulled by a certain force. Without free subcutaneous tissue, the skin at the wound edge is pulled toward the center line by external force, and the stretching force is evenly distributed on the skin around the wound. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/08
CPCA61B17/08
Inventor 吴丹凯彭传刚任广凯
Owner 吴丹凯
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