CN112168258A

CN112168258A - Large-wound flexible skin traction system

Info

Publication number: CN112168258A
Application number: CN202011189193.1A
Authority: CN
Inventors: 平巧丽
Original assignee: Hangzhou Zhongao Industrial Design Co ltd
Current assignee: Hangzhou Zhongao Industrial Design Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-01-05

Abstract

The application relates to a large-wound flexible skin traction system, which is applied to a wound on the surface of a limb and is characterized in that: comprises at least 3 anchors fixed on the skin surface layer, and any two adjacent anchors are connected in such a way that: one end of a traction line is wound and fixed on a protruding structure on a knob of a first anchor device, the other end of the traction line is fixedly connected with an elastic piece, the elastic piece is sleeved in a sleeve, the sleeve is arranged in a skin surface layer at the edge of a wound in a penetrating manner, the other end of the elastic piece is fixedly connected with one end of another traction line, and the other end of the traction line is wound and fixed on a protruding structure on a knob of a second anchor device; the knob can only rotate in one direction; the position of the pulling line on the anchor passes through is provided with scales, the marks on the pulling line enable the elastic pieces to be in the positions of the scales 0 when the elastic pieces are just at the original length, and the pulling force on each elastic piece is changed by adjusting the winding number of each section of the pulling line on the knob and the rotating position condition of the knob, so that the pulling force on each side of the wound is adjusted.

Description

Large-wound flexible skin traction system

Technical Field

The application relates to a surgical medical instrument and trauma rehabilitation equipment, in particular to a large-wound flexible skin traction system.

Background

In the rehabilitation treatment of severe trauma, the skin is cut off due to laceration or necrosis, and after the subcutaneous trauma is treated, the skin edge at the lacerated part needs to be slowly and continuously pulled to gradually proliferate, so as to achieve the purposes of re-covering the wound surface and recovering the skin function. The skin grows relatively slowly and the stretching process therefore lasts from weeks to months. During the stretching process, the stretching force needs to be in the size and direction according to the treatment requirement and the specific condition of the patient, otherwise, uneven skin growth (under-stretching condition) or failure of stretching (over-stretching condition) can be caused.

In the prior art, such as CN104826219A, the principle is to pierce the puncture needle 34 into the skin at the edge of a wound, and then slowly draw the puncture needle to the distance by using a three-group screw mechanism to pull the skin. The traction device pulls the skin through a mechanism structure, the pulling force is difficult to adjust, and the body feeling of a patient is poor.

A pulling system capable of adjusting the pulling force is also available in foreign countries, such as US10076386B2, which uses a torsion spring to tighten the pulling wires of all anchor points, determines the pulling force through a constant force spring, and displays the specific pulling force reading through the scale on the housing. Also, for example, CN110432994A, this solution employs a tension spring, which is pulled by a puncture needle or a steel wire that penetrates the skin, and also visually displays the pulling force by a scale.

However, the pulling force of the traction apparatus is generated by a steel wire device, the contour of the human body is not a plane but has a radian everywhere, and the steel wire with the pulling force presses and cuts skin and meat tissues to cause the fracture of the tissues, which has certain defects.

The traction device generally adopts a force adjusting device to adjust the traction force, and corresponding tension setting can not be carried out according to different requirements of different skin positions in actual arrangement.

Disclosure of Invention

Problem (A)

1. The self-adaptive skin traction system is provided, so that the radian of the skin on the body surface of a human body is not influenced by a traction structure or is not crushed by the traction structure;

2. the traction system is provided, so that the traction device is more flexibly arranged on the body surface, can be suitable for various wound shapes, and can have different traction forces according to the skin fiber shapes of various wound surfaces;

3. the adjustment of the pulling force is convenient.

(II) technical scheme

To the above technical problem, the present application provides a flexible skin traction system for a large wound, which is applied to a wound on the surface of a limb, and is characterized in that: comprises at least 3 anchors fixed on the skin surface layer, and any two adjacent anchors are connected in such a way that: one end of a traction line is wound and fixed on a protruding structure on a knob of a first anchor device, the other end of the traction line is fixedly connected with an elastic piece, the elastic piece is sleeved in a sleeve, the sleeve is arranged in a skin surface layer at the edge of a wound in a penetrating manner, the other end of the elastic piece is fixedly connected with one end of another traction line, and the other end of the traction line is wound and fixed on a protruding structure on a knob of a second anchor device;

the knob can only rotate in one direction;

the position of the pulling line on the anchor passes through is provided with scales, the marks on the pulling line enable the elastic pieces to be in the positions of the scales 0 when the elastic pieces are just at the original length, and the pulling force on each elastic piece is changed by adjusting the winding number of each section of the pulling line on the knob and the rotating position condition of the knob, so that the pulling force on each side of the wound is adjusted.

Further, a ratchet mechanism is provided in the knob so that it can rotate only in one direction.

Further, the elastic part is a spring, and the sleeve is made of a flexible material.

Further, the number of the anchors is 4.

Further, the anchor holding positions are selected from the wound contour corner positions.

Further, the number of anchors takes the value of the number of corners of the wound profile.

(III) advantageous effects

The scheme can be firstly fit with the outline of the limb of a person, does not oppress and cut muscles or skins, can generate different traction forces at different positions, is very convenient to adjust and read the traction forces in the whole course of disease, and can quickly adjust the traction forces only by twisting the knob when the traction forces need to be adjusted.

Drawings

FIG. 1 is an overall view of a pulling system according to the present application, with dashed lines showing the configuration of a cannula that penetrates into the skin surface and cannot be directly viewed;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a top view of the pulling system of the present application.

Reference numerals

1. Wound

2. Skin surface layer

3. Anchor device

4. Pulling wire

5. Sleeve pipe

6. Elastic piece

7. Scale division

8. Rotary knob

9. Spring

Detailed Description

The present invention will be further described with reference to the following examples.

As shown in fig. 1, a large wound flexible skin stretching system according to the present application is applied to a wound 1 on the surface of a limb, characterized in that: comprises at least 3 anchors 3 fixed on the skin surface layer 2, and any two adjacent anchors 3 are connected in such a way that: one end of a traction line 4 is wound and fixed on a protruding structure on a knob 8 of a first anchor device 3, the other end of the traction line 4 is fixedly connected with an elastic part 6, the elastic part 6 is sleeved in a sleeve 5, the sleeve 5 is arranged in a skin surface layer 2 at the edge of a wound 1 in a penetrating way, the other end of the elastic part 6 is fixedly connected with one end of another traction line 4, and the other end of the traction line 4 is wound and fixed on a protruding structure on a knob 8 of a second anchor device 3;

the knob 8 can only rotate in one direction;

the position on the anchor 3 where the pulling line 4 passes is provided with scales 7, the pulling line 4 is provided with marks so that the elastic parts 6 are at the positions of the scales 0 when the elastic parts are at the original length, and the pulling force on each elastic part 6 is changed by adjusting the winding number of each section of the pulling line 4 on the knob 8 and the rotating position of the knob 8, so that the pulling force on each side of the wound 1 is adjusted.

The main point of this scheme lies in that the anchor is fixed on the skin top layer, and in the technical data quoted in the background art, the force regulator is often unset, and this brings the hidden danger for the stability of device, also makes the patient face the risk that the device dislocates, and the fixed mode of anchor is easily found and various, can adopt the mode in citation file 3 for example, make the anchor stable and can bear certain pulling force on the skin top layer can.

The knob with unidirectional rotation is designed to initially wind the pulling wire around the protrusion fixed on the knob and wind the required number of turns until the initial pulling force is appropriate, and in the process of skin growth, the pulling system needs to be continuously tightened, at this time, the pulling force is required to be rotated towards the direction that the knob can be rotated, and the scales are observed, so that the pulling force can be restored to the required size again, and the knob can only rotate in one direction, so that the rotated position can be kept after the knob is away from the hand.

The main point of the scheme is that,

further, the elastic member is a spring 9, and the sleeve 5 is made of a flexible material.

In this case, the spring does not need to be in a flat state, but is adapted to various shapes to the skin of the wound of the human body by the sleeve, but these do not affect the generation of the required pulling force, and do not cut the tissue of the human body because the pulling wire must be broken straight, as in the second pulling device described in the background art.

The main point of the scheme is that each section of elastic body can generate different pulling forces. In both the first and second types of retractors, the force adjusting device is often concentrated in one, so that all the drawing surfaces have the same drawing force. However, the skin fibers of the human body are directional, the prosthetic growth is also in accordance with the original direction, the pulling force required by each side of the wound is not always the same, and the pulling mode should be specifically formulated according to the position of the wound and the condition of injury.

In this solution, since the anchors are fixed, the elastic members therebetween have different pulling forces depending on the winding, and are read and displayed by the scale.

Further, the number of the anchors is 4.

I.e. a substantially quadrangular wound, four anchors are used, and so on.

Furthermore, the sleeve is made of silica gel.

Furthermore, the sleeve is formed by weaving medical steel wires.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A large wound flexible skin stretching system applied to a wound on the surface of a limb, characterized in that: comprises at least 3 anchors fixed on the skin surface layer, and any two adjacent anchors are connected in such a way that: one end of a traction line is wound and fixed on a protruding structure on a knob of a first anchor device, the other end of the traction line is fixedly connected with an elastic piece, the elastic piece is sleeved in a sleeve, the sleeve is arranged in a skin surface layer at the edge of a wound in a penetrating manner, the other end of the elastic piece is fixedly connected with one end of another traction line, and the other end of the traction line is wound and fixed on a protruding structure on a knob of a second anchor device;

the knob can only rotate in one direction;

2. The large wound flexible skin stretching system of claim 1, wherein: a ratchet mechanism is arranged in the knob so that the ratchet mechanism can only rotate in one direction.

3. The large wound flexible skin stretching system of claim 1, wherein: the elastic piece is a spring, and the sleeve is made of flexible materials.

4. The large wound flexible skin stretching system of claim 1, wherein: the number of the anchors is 4.

5. The large wound flexible skin stretching system of claim 1, wherein: the anchor fixing position is selected from the corner positions of the wound outline.

6. The large wound flexible skin stretching system of claim 1, wherein: the number of anchors takes the value of the number of corners of the wound profile.

7. The large wound flexible skin stretching system of claim 1, wherein: the sleeve is made of silica gel.

8. The large wound flexible skin stretching system of claim 1, wherein: the sleeve is formed by weaving medical steel wires.