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wound closure device

A technology for closing devices and wounds, which is applied in the field of medical devices and can solve problems such as asymmetry of skin stretching and deformation, affecting wound healing, local pain, etc.

Active Publication Date: 2019-12-17
ZHEJIANG HAICHUANG MEDICAL DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the serpentine arrangement responds to the longitudinal stretching of the wound skin, the stretching and deformation of the skin on both sides of the wound is asymmetrical and uneven.
In the early stage of wound healing, this unevenness and asymmetry may cause longitudinal shear force and even longitudinal relative displacement of the wound margin, thereby affecting wound healing and causing local pain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Zigzag Wound Closure Device

[0059] See attached Figure 1-2 , the simplest zigzag stent wound closure device, or called a functional unit, can be composed of a pair of zigzag stent first coupling pieces 11 and second coupling pieces 12 , and a set of helical closure components 2 . Because the zigzag has only one "tooth", it looks like a "V". Adhesive is applied to the underside of the "V"-shaped bracket structure. The two ends of the closure assembly 2 correspond to the "V"-shaped bracket structure of the first coupling piece 11 and the second coupling piece 12 respectively and are fixedly connected to the vertices near the wound side through circular bayonets 111 and 121, and the "V" sub-shaped bracket The two arms are set to be thicker in the middle and thinner at the two sides, and arc-shaped cutouts 101 are provided at the connecting turning points. The screw closure assembly includes a screw 21 and two bases 221 and 222 . One end of the screw is provided with...

Embodiment 2

[0062] Zigzag Stent Wound Closure Device with Diamond Mesh Mesh

[0063] see Figure 5-6 , on the basis of embodiment 1, replace the elastic film 101 with the rhombic mesh fine mesh 103 that is distributed in the gap between the zigzag brackets and integrally formed with the zigzag brackets to form the elastic film 101 as follows Figure 5 Closure devices for wounds shown. Correspondingly, the adhesive is coated on the lower surface of the zigzag bracket and the rhombic mesh fine mesh.

[0064] The advantage of this technical solution is that the first bonding sheet 11 and the second bonding sheet 12 can be continuously extruded into continuous strips with a pair of molds, and cut into appropriate lengths as required to achieve efficient production.

Embodiment 3

[0066] Wound Closure Device with Rhombus Sheet Stent Structure

[0067] See attached Figure 7 , the first combining piece 11 and the second combining piece 12 of the functional unit of the simplest rhombic sheet stent structure wound closure device are each composed of a rhombus and four cantilevers, which look like two connected "X" shapes. Adhesive is coated on the underside of the "X" shaped bracket structure. The structure of the closure assembly 2 is the same as that of Embodiment 1. The two ends are respectively opposite to the rhombus of the first combining piece 11 and the second combining piece 12 and are fixedly connected to the vertices near the wound side by circular bayonet sockets. All the arms of the rhomboid bracket are arranged as The middle is thick and the two sides are thin, and an arc-shaped cutout 101 is arranged at its junction.

[0068] When a plurality of functional units are combined, and an elastic film 102 fixedly connected with the rhombic suppo...

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Abstract

The invention relates to a medical appliance and specifically relates to a device applied to skin wound closure. The device comprises a pair of combination sheets which can be firmly adhered to kin on two sides of wound edges, as well as a set of closure assembly used to adjust the wound edge distance and finally close a wound, wherein the major structure of each combination sheet is a thin sheet support structure made of a material which is not telescopic significantly and can only get bent and deformed; and the combination sheets and the closure assembly are independent and are directly and firmly connected by flexible connecting parts. When skin near the wound has stretching or contracting changes along the direction perpendicular to the wound due to limb posture changing, the wound closure device can avoid the stretching or contracting changes of the skin on the wound edges. When the skin near the wound has the stretching or contracting changes along the direction parallel to the wound due to the limb posture changes, the combination sheets can make the skin on the two wound edges respond to the stretching or contracting changes synchronously, and closure acting force of the skin on the wound edges is not changed significantly.

Description

technical field [0001] The invention relates to a medical device, in particular to a device for closing skin wounds. Background technique [0002] The traditional way to deal with skin wounds, such as wounds after trauma or surgery, is to suture them with medical needles and threads. However, needle and thread suture has many defects, such as causing additional pinhole trauma, sutures are easy to cause foreign body infection, and unsightly scars will be left on the wound healing site. [0003] Existing technologies such as US3926193, CN1524507A, CN103690207A, and CN104755033A provide some alternative technical solutions for solving these problems. These technical solutions can be well dealt with for relatively regular straight line wounds, and also have different degrees of consideration for irregular curved wounds. For wounds on joints, such as knees and elbows, due to the inevitable large-scale expansion and contraction of the local skin during physical activity, it pose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/03
CPCA61B17/04A61B2017/0438
Inventor 张传忠
Owner ZHEJIANG HAICHUANG MEDICAL DEVICE CO LTD