CN118141448B - Skin drafting arrangement with adjustable - Google Patents

Abstract

The invention relates to the technical field of medical equipment, in particular to an adjustable skin drafting device which comprises a first contraction mechanism, a second contraction mechanism and a control mechanism, wherein the first contraction mechanism comprises a first adhesive plate, a sliding plate, a pull head, two zippers and a balancing component; the balance component comprises a sliding block, a pull rope and a unidirectional part, wherein the sliding block is arranged on the first sticky plate and the sliding plate in a sliding way, the pull rope is arranged between the sliding block and the pull head, the length of the pull rope between the sliding block and the pull head is adjustable, and the unidirectional part is used for enabling the sliding block to slide towards the direction in which the two zippers are integrated. The sliding block can be fixed to counteract the pulling force generated by the sliding of the slider on the zipper through the matching of the sliding block and the unidirectional part, so that the pulling force on the first adhesive plate during the sliding of the slider is avoided, and the service life of the skin traction device is prolonged; the length-adjustable pull rope is arranged, the moving amount of the pull head can be adjusted according to the curved surface radian of the wound, and the situation that the pull head moves too long to enable the pulling force acting on the sliding block and the pulling force of the pull head not to be in the tangential direction of the wound to press the wound is avoided.

Description

Skin drafting arrangement with adjustable

Technical Field

The invention relates to the technical field of medical equipment, in particular to an adjustable skin drafting device.

Background

Skin wounds, particularly after surgery, are often linear wounds, often with medical needle and line suturing. This not only requires a longer suture time, increasing the risk of surgery for the patient, but also requires re-stitch after wound healing, leaving a "centipede" -like scar at the wound healing site. In order to overcome the problems and the defects, a skin drafting device which can be used for suturing without medical needles and wires is arranged, and the skin drafting device can enable the skin edges at two sides of a wound to be close to each other and be attached to each other, so that wound healing is promoted. The common skin drafting device is zip-fastener type, when the zip-fastener type skin drafting device is used for pinching a wound on a curved surface, the pulling force acting on the pull head can pull the adhesive tape at the position, so that the adhesive force between the skin drafting device and skin is reduced, the service life of the skin drafting device is also reduced, if an operator presses the position, secondary injury can be caused to the wound, and the comfort of a patient is also reduced.

Disclosure of Invention

Accordingly, it is necessary to provide an adjustable skin stretching device for solving the problems that the conventional zip-type skin stretching device is easy to cause secondary damage to wound treatment on curved surfaces and the service life is reduced.

The above purpose is achieved by the following technical scheme:

An adjustable skin drafting device comprises a first contraction mechanism and a second contraction mechanism, wherein the first contraction mechanism comprises a first adhesive plate, a sliding plate, a zipper assembly and a balancing assembly; the first bonding plate is parallel to the slide plate and is arranged at intervals, the zipper assembly comprises a pull head and two zippers, the two zippers are arranged between the first bonding plate and the slide plate, one of the zippers is fixedly connected with the first bonding plate, the other zipper is fixedly connected with the slide plate, the pull head is arranged on one of the zippers in a sliding manner along the length direction of the zipper, when the pull head is arranged on the two zippers in a sliding manner along the first direction, the two zippers can be integrated, when the pull head is arranged on the two zippers in a sliding manner along the second direction, the two zippers integrated into one can be separated from each other, and the directions of the first direction and the second direction are opposite.

The balance component comprises a sliding block, a pull rope and a one-way part, wherein the sliding block is arranged on the first sticky plate and the sliding plate in a sliding manner, when the sliding block slides on the zipper along the first direction, the sliding block is positioned at the rear of the sliding block, when the sliding block slides on the zipper along the second direction, the sliding block can be abutted with the sliding block, the pull rope is arranged between the sliding block and the sliding block, one end of the pull rope is arranged inside the sliding block, the other end of the pull rope is connected with the sliding block, the length of the pull rope between the sliding block and the sliding block is adjustable, and the one-way part is used for enabling the sliding block to slide only in the direction of combining two zippers into a whole.

The second contraction mechanism comprises a second sticky plate and a fine adjustment assembly, the second sticky plate is located on one side, away from the first sticky plate, of the sliding plate, the second sticky plate and the first sticky plate are arranged at parallel intervals, the first sticky plate and the second sticky plate are used for being adhered to two sides of a wound on the skin, and the fine adjustment assembly is arranged between the second sticky plate and the sliding plate and used for fine adjustment of the distance between the edges of the skin on two sides of the wound.

Preferably, the upper surfaces of the first sticky board and the sliding board are provided with sliding grooves, and when the two zippers are oppositely arranged, the same ends of the two sliding grooves respectively penetrate through the first sticky board and the sliding board; two limiting blocks are installed at the bottom of the sliding block, and each limiting block is correspondingly arranged in one sliding groove in a sliding mode.

Preferably, two unidirectional parts are arranged, and each unidirectional part comprises a toothed plate, a groove, a clamping block and a first spring; the toothed plate is fixedly arranged in one chute; the groove is formed in the bottom of the sliding block and is positioned right above the sliding groove, the clamping block is positioned in the groove and is rotationally connected with the sliding block, and the clamping block can be clamped with the toothed plate; the first spring is arranged in the groove, one end of the first spring is connected with the sliding block, and the other end of the first spring is connected with the clamping block.

Preferably, the teeth on each toothed plate are unidirectional helical teeth, and the helical teeth face the direction in which the slider slides to control the two zippers to be combined into a whole, a boss is arranged on one surface of the clamping block, which is close to the toothed plate, and can be connected with the helical teeth in a clamping manner, an inclined surface is arranged on one surface of the boss, which is close to the toothed plate, and the inclined surface faces the direction in which the helical teeth face.

Preferably, the limiting rope is arranged at one end, which is not penetrated by the sliding groove, of the first bonding plate and the sliding plate, and two ends of the limiting rope are respectively connected with the first bonding plate and the sliding plate.

Preferably, the balancing assembly further comprises a rotating rod and an adjusting knob; the inside cavity that is equipped with of slider, bull stick rotate around its axis and set up in the cavity, adjust knob rotates and sets up on the slider, and adjust knob and bull stick fixed connection, the stay cord sets up on the bull stick in the inside one end fixed mounting of slider.

Preferably, a traction rope is arranged on one surface of the sliding block, which is far away from the pull head.

Preferably, the pull cord has elasticity.

Preferably, the fine adjustment assembly comprises a first support beam, a first fixed block, a second support beam, a second fixed block and a first threaded rod; the first support beam is fixedly arranged on the second adhesive plate, the length direction of the first support beam is consistent with the length direction of the second adhesive plate, a plurality of first fixing blocks are arranged, and the first fixing blocks are arranged on the first support beam along the length direction of the first support beam in an array manner; the second support beams are fixedly arranged on the sliding plate, the second support beams are arranged in parallel with the first support beams, the second fixing blocks are fixedly arranged on the second support beams, the number of the second fixing blocks is consistent with that of the first fixing blocks, and the position of each second fixing block is opposite to that of the first fixing block; one end of the first threaded rod is rotatably arranged on one surface, close to the first fixed block, of the second fixed block, the other end of the first threaded rod penetrates through the first fixed block, and the first threaded rod is in threaded connection with the first fixed block.

Preferably, the first threaded rod is rotatably arranged at one end of the second fixed block, and the second fixed block is hinged with the first threaded rod.

The beneficial effects of the invention are as follows: through the cooperation of the sliding block and the unidirectional part, the sliding block can only control the two zippers to slide in the direction of integrating the two zippers, when the sliding block slides, the pulling force generated by the sliding of the sliding block on the zippers can be counteracted by fixing the sliding block, so that the pulling force on the first sticky plate and the second sticky plate during the sliding of the sliding block is avoided, the adhesive force of the first sticky plate and the second sticky plate on skin is influenced, and the service life of the skin traction device is prolonged; the length-adjustable pull rope is arranged, the moving amount of the pull head can be adjusted according to the curved surface radian of the wound, and the situation that the pull head moves too long to enable the pulling force acting on the sliding block and the pulling force of the pull head not to be in the tangential direction of the wound to press the wound is avoided.

Drawings

Fig. 1 is a schematic structural diagram of an adjustable skin stretching device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

Fig. 3 is a top view of an adjustable skin stretching device according to an embodiment of the present invention;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a cross-sectional view taken along the direction C-C in FIG. 3;

fig. 6 is a schematic partial view of a first contraction mechanism of an adjustable skin stretching device according to an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of an adjustable skin stretching device according to another embodiment of the present invention;

Fig. 8 is a cross-sectional view of a right side view of an adjustable skin stretching device according to another embodiment of the present invention;

Fig. 9 is a cross-sectional view of an adjustable skin stretching device according to another embodiment of the present invention.

Wherein: 101. a first adhesive plate; 102. a slide plate; 103. a pull head; 104. a zipper; 105. a slide block; 106. a pull rope; 107. a first threaded rod; 108. a limiting block; 109. a toothed plate; 110. a groove; 111. a clamping block; 112. a first spring; 113. a limit rope; 114. a rotating rod; 115. an adjustment knob; 116. a cavity; 117. a traction rope; 201. a second adhesive plate; 202. a first support beam; 203. a first fixed block; 204. a second support beam; 205. a second fixed block; 300. a second threaded rod; 301. a second spring; 302. a top block; 303. a limit sleeve; 304. a k-wire; 305. a sliding block; 306. a limit column; 307. a fixing plate; 308. a movable plate; 309. a groove; 310. a clamping groove; 311. a threaded hole; 312. a through hole; 313. a stud.

Detailed Description

The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1 to 6, an embodiment of the present invention provides an adjustable skin stretching device, comprising a first shrinking mechanism comprising a first adhesive plate 101, a sliding plate 102, a zipper assembly and a balancing assembly; the first sticky board 101 is parallel to the sliding board 102 and is arranged at intervals, the zipper assembly comprises a pull head 103 and two zippers 104, the two zippers 104 are arranged between the first sticky board 101 and the sliding board 102, one of the zippers 104 is fixedly connected with the first sticky board 101, and the other zipper 104 is fixedly connected with the sliding board 102; the two zippers 104 are oppositely arranged, the slider 103 is arranged on one of the zippers 104 in a sliding mode along the length direction of the zipper 104, the slider 103 can also be arranged on the other zipper 104 in a sliding mode, when the slider 103 is arranged on the two zippers 104 in a sliding mode along the first direction, the two zippers 104 can be integrated, when the slider 103 is arranged on the two zippers in a sliding mode along the second direction, the two zippers 104 integrated into a whole can be separated from each other, the directions of the first direction and the second direction are opposite, and the first direction and the second direction are the length extending directions of wounds.

The balance assembly comprises a slide block 105, a pull rope 106 and a one-way part, wherein the slide block 105 is arranged on the first sticky plate 101 and the slide plate 102 in a sliding mode, when the slider 103 slides on the slide fastener 104 along the first direction, the slide block 105 is positioned at the rear of the slider 103, when the slider 103 slides on the slide fastener 104 along the second direction, the slide block 105 can be abutted against the slider 103, the pull rope 106 is arranged between the slide block 105 and the slide fastener 103, one end of the pull rope 106 is arranged inside the slide block 105, the other end of the pull rope 106 is connected with the slide fastener 103, the length of the pull rope 106 between the slide block 105 and the slide fastener 103 is adjustable, and the one-way part is used for enabling the slide block 105 to slide along the direction of combining two slide fasteners 104 into a whole.

The second contraction mechanism comprises a second sticky plate 201 and a fine adjustment component, the second sticky plate 201 is located on one side, far away from the first sticky plate 101, of the sliding plate 102, the second sticky plate 201 and the first sticky plate 101 are arranged at intervals in parallel, the first sticky plate 101 and the second sticky plate 201 are used for being adhered to two sides of a wound on skin, and the fine adjustment component is arranged between the second sticky plate 201 and the sliding plate 102 and used for fine adjustment of the distance between the two skin edges of the wound.

The first adhesive plate 101, the second adhesive plate 201 and the sliding plate 102 are all made of flexible materials and have flexibility.

Through the cooperation of the slide block 105 and the unidirectional part, the slide block 105 can only slide on the first adhesive plate 101 and the slide plate 102 in the first direction, when the slider 103 slides, the pull force generated by the sliding of the slider 103 on the zipper 104 can be counteracted by fixing the slide block 105, so that the pulling force on the first adhesive plate 101 and the second adhesive plate 201 during the sliding of the slider 103 is avoided, the adhesive force of the first adhesive plate 101 and the second adhesive plate 201 on skin is influenced, and the service life of the skin traction device is prolonged; the length-adjustable pull rope 106 is arranged, the moving amount of the pull head 103 each time can be adjusted according to the curved surface radian of the wound, and the situation that the pull force acting on the slide block 105 and the pull force of the pull head 103 are not in the tangential direction of the wound due to the overlong moving distance of the pull head 103 is avoided, so that the wound is pressed is avoided.

In this embodiment, the upper surfaces of the first adhesive plate 101 and the slide plate 102 are provided with sliding grooves, the sliding grooves on the first adhesive plate 101 extend along a first direction, the sliding grooves on the slide plate 102 extend along the first direction, and when the two zippers 104 are oppositely arranged, the same ends of the two sliding grooves respectively penetrate through the first adhesive plate 101 and the slide plate 102; two limiting blocks 108 are installed at the bottom of the sliding block 105, each limiting block 108 is correspondingly arranged in one sliding groove in a sliding mode, each limiting block 108 can be clamped with the corresponding sliding groove, the sliding block 105 is pulled to move in the direction except the extending direction of the sliding groove, the limiting blocks 108 can provide a pulling force for the first adhesive plate 101 and the sliding plate 102, namely, except the sliding direction of the limiting blocks 108 in the sliding grooves, the limiting blocks 108 and the sliding grooves are in a locking state in other directions, and the sliding block 105, the first adhesive plate 101 and the sliding plate 102 are always in a fitting state.

In the present embodiment, two unidirectional portions are provided, each unidirectional portion including a toothed plate 109, a groove 110, a clip 111, and a first spring 112; the toothed plates 109 are fixedly arranged in one sliding groove, the toothed plates 109 are arranged on the side surfaces of the sliding groove, and the two toothed plates 109 are oppositely arranged; the groove 110 is formed in the bottom of the sliding block 105 and is located right above the sliding groove, the clamping block 111 is located in the groove 110, the clamping block 111 is rotationally connected with the sliding block 105, the rotation axis of the clamping block 111 is located at one end of the clamping block 111, and the clamping block 111 can be clamped with the toothed plate 109; the first spring 112 is disposed in the groove 110, one end of the first spring 112 is connected with the slider 105, the other end of the first spring 112 is connected with the clamping block 111, the rotation axis of the clamping block 111 is perpendicular to the axis of the first spring 112, and the first spring 112 can push the clamping block 111 to rotate, so that the clamping block 111 is clamped with the toothed plate 109.

In this embodiment, the teeth on each toothed plate 109 are unidirectional helical teeth, and the helical teeth slide towards the slider 103 to control the direction in which the two zippers 104 can be integrated, a boss is arranged on one surface of the clamping block 111 close to the toothed plate 109, the boss can be clamped with the helical teeth, an inclined surface is arranged on one surface of the boss close to the toothed plate 109, the inclined surface faces the direction in which the helical teeth face, when the slider 103 integrates the two zippers 104, the slider 105 can move along with the slider 103, and when the slider 103 moves reversely to separate the two zippers 104 integrated together, the slider 103 can be abutted with the slider 105, at the moment, the boss of the clamping block 111 can be clamped with the helical teeth on the toothed plate 109 to block the movement of the slider 105, so that the slider 103 does not move any more when being abutted with the slider 105, and the rupture of a wound caused by false contact is avoided, and the healing of the wound is affected.

In this embodiment, a limiting rope 113 is installed on one end, which is not penetrated by a chute on the first adhesive plate 101 and the sliding plate 102, and two ends of the limiting rope 113 are respectively connected with the first adhesive plate 101 and the sliding plate 102; the limit rope 113 can conveniently determine the installation position between the first adhesive plate 101 and the slide plate 102, and can also avoid the loss of the first adhesive plate 101.

In this embodiment, the balancing assembly further comprises a turning bar 114 and an adjustment knob 115; the slider 105 is internally provided with a cavity 116, one end of the pull rope 106 extending into the slider 105 is positioned in the cavity 116, the rotating rod 114 is rotationally arranged in the cavity 116 around the axis of the pull rope 116, the adjusting knob 115 is rotationally arranged on the slider 105, the adjusting knob 115 is fixedly connected with the rotating rod 114, the adjusting knob 115 is rotationally arranged outside the slider 105, the adjusting knob 115 is connected with the rotating rod 114 through a connecting rod, damping is arranged between the adjusting knob 115 and the slider 105, when the pull head 103 moves on the zipper 104 towards the first direction, the pull rope 106 can move for a fixed distance according to the preset length of the pull rope 106 between the slider 105 and the pull head 103, the situation that the moving distance of the pull head 103 is overlong and the distance between the slider 105 is overlarge, the direction of pulling the pull head 103 is not in the tangential direction of a wound radian, secondary pulling is caused on a wound, the healing effect of the wound is affected, one end of the pull rope 106 arranged on the inside the slider 105 is fixedly arranged on the rotating rod 114, when the adjusting knob 115 rotates, the adjusting knob 115 drives the rotating rod 114 through the connecting rod, the rotating rod 114 can wind the pull rope 106 on the peripheral surface of the pull rope 106, or release the pull rope 106 wound on the peripheral surface of the pull rope 106, so that the length of the pull head 103 is controlled.

In this embodiment, a pull rope 117 is provided on a surface of the slider 105 away from the slider 103, and when one hand of an operator pulls the slider 103 to slide and control the two zippers 104 to be combined together, the other hand pulls the pull rope 117, so that the pulling direction of the pull rope 117 and the pulling direction of the slider 103 are on the same straight line, and unnecessary influence of the slider 103 and the slider 105 on a wound is reduced when the slider 103 slides.

In this embodiment, the pull cord 106 has elasticity, and an elastic cord is selected as the pull cord 106, when the adjustable skin traction device is placed on a wound, the rotary adjusting knob 115 is rotated according to the radian of the wound, the preset value of the length of the pull cord 106 between the slider 105 and the pull head 103 is adjusted, when the pull head 103 is pulled to move, the pull cord 106 between the slider 105 and the pull head 103 is pulled by the pull head 103 to stretch, when the pull cord 106 stretches to the maximum value, the position of the pull head 103 is kept, the fixation of the slider 105 is canceled, the pull cord 106 is reset, and the slider 105 is contacted with the pull head 103 under the action of the pull cord 106, so that the subsequent operation of an operator is facilitated.

In this embodiment, the fine tuning assembly includes a first support beam 202, a first fixed block 203, a second support beam 204, a second fixed block 205, and a first threaded rod 107; the second adhesive plate 201 is located at one side of the sliding plate 102 far away from the first adhesive plate 101, the second adhesive plate 201 is parallel to the first adhesive plate 101, and the materials of the first supporting beam 202 and the second supporting beam 204 are consistent with those of the sliding plate 102, are flexible and can be bent; the first support beam 202 is fixedly mounted on the second adhesive plate 201, the length direction of the first support beam 202 is consistent with the length direction of the second adhesive plate 201, a plurality of first fixing blocks 203 are arranged, and the first fixing blocks are arranged on the first support beam 202 along the length direction of the first support beam 202 in an array manner; the second support beams 204 are fixedly arranged on the sliding plate 102, the second support beams 204 are parallel to the first support beams 202, the second fixing blocks 205 are fixedly arranged on the second support beams 204, the number of the second fixing blocks 205 is consistent with that of the first fixing blocks 203, and the position of each second fixing block 205 is opposite to that of the first fixing block 203; one end of the first threaded rod 107 rotates to be arranged on one surface, close to the first fixed block 203, of the second fixed block 205, the other end of the first threaded rod 107 penetrates through the first fixed block 203, the first threaded rod 107 is in threaded connection with the first fixed block 203, the distance between the sliding plate 102 and the second sticky plate 201 can be adjusted by rotating the first threaded rod 107, and therefore the degree of fit of wound edge skin is controlled.

In this embodiment, the first threaded rod 107 is rotatably disposed at one end of the second fixing block 205, and the second fixing block 205 is hinged to the first threaded rod 107, so that the adjustable skin stretching device can be adapted to wound treatment at different positions, and the use scene of the adjustable skin stretching device is improved.

The working principle and working method of the adjustable skin drafting device provided by the embodiment are as follows:

First, the two zippers 104 are separated, and the limiting block 108 does not slide in the sliding groove; when the wound to be treated is a wound on a curved surface, the adjusting knob 115 is rotated according to the radian of the curved surface, the knob rotates to drive the rotating rod 114 to rotate, and the rotating rod 114 winds or releases the pull rope 106 until the connecting line between the maximum distances which can be pulled between the sliding block 105 and the pull head 103 can be overlapped with the tangential direction of the wound on the curved surface to the greatest extent; the first adhesive sheet 101 is adhered to one side of the wound such that the length direction of the first adhesive sheet 101 coincides with the length direction of the wound, and then the second adhesive sheet 201 is adhered to the other side of the wound according to the width of both sides of the wound, and the second adhesive sheet 201 and the first adhesive sheet 101 are parallel.

Then, the two zippers 104 are pulled to enable the two zippers 104 to approach each other, the slider 103 is slid onto the two zippers 104, and at the position where the two zippers 104 approach each other, the two zippers 104 respectively drive the first sticky board 101 and the second sticky board 201 at the position to approach each other; then, the limiting block 108 is installed in the sliding groove in a sliding way, the clamping block 111 is clamped with the toothed plate 109, then an operator pulls the traction rope 117 by one hand, pulls the pull head 103 by one hand, the pull head 103 is fixed by the hand pulling the traction rope 117, the pull head 103 moves, the pull head 103 passes through the position, the zipper 104 on the first sticky plate 101 and the zipper 104 on the sliding plate 102 are integrated, when the length of the pull rope 106 between the sliding block 105 and the pull head 103 is prolonged to the maximum value, the pull head 103 cannot move again, at the moment, the position of the pull head 103 is fixed, the hand fixing the sliding block 105 is loosened, the sliding block 105 approaches the pull head 103 under the action of the pull rope 106, the sliding block 105 rotates through the matching of inclined planes on the boss and inclined teeth on the toothed plate 109, the boss compresses the first spring 112 every time the inclined teeth pass through the first spring 112, and when the sliding block 105 slides no longer, the pull rope 117 is pulled by one hand again, the other hand pulls the pull head 103, in the process of pulling the sliding block 103, the sliding block 105 and the sliding block 105 are parallel to the pull head 103 in the same direction as the same as the straight line, and the tangential direction of the sliding block is as possible.

The pulling of the slider 103 is repeated until the two zippers 104 are integrated, at this time, the adjusting knob 115 can be turned to receive the pull rope 106 into the slider 105, and simultaneously the slider 105 is pushed to abut against the slider 103, so as to fix the position of the slider 103.

Finally, the first threaded rods 107 are sequentially rotated to enable the skin edges on two sides of the wound to be in contact, each first threaded rod 107 is adjusted according to the wound condition, and the generation of centipede scars is reduced.

In another embodiment, as shown in fig. 7-9, an adjustable skin stretching device is suitable for deep wounds, as well as curved wounds. The adjustable skin drafting device comprises two Kirschner wires 304 and a plurality of drafting mechanisms, wherein the two Kirschner wires 304 are inserted into the skin on two sides of the length direction of a wound, the end part of each Kirschner wire 304 is provided with a bend, when the length direction of the wound is positioned on a curved surface, the Kirschner wire 304 is required to be bent, so that the Kirschner wire 304 can be attached to the skin, a better traction effect is achieved on the wound, and the drafting mechanisms positioned at the end parts of the Kirschner wire 304 can avoid the rotation of the Kirschner wire 304 under the action of the traction force when the Kirschner wire 304 is pulled, so that the skins on the two sides of the wound can be synchronously drawn together; each drafting mechanism comprises a second threaded rod 300, sliding blocks 305 and clamping components, the second threaded rod 300 is perpendicular to the Kirschner pins 304, the sliding blocks 305 are provided with two, each sliding block 305 is sleeved on the second threaded rod 300 in a sliding mode along the axis direction of the second threaded rod 300, a limiting post 306 is connected to the sliding blocks 305 in a threaded mode, the limiting post 306 penetrates through the sliding blocks 305 to be in contact with the second threaded rod 300, the number of the clamping components is consistent with that of the sliding blocks 305, each clamping component is correspondingly arranged on one sliding block 305, each clamping part comprises a fixed plate 307 and a movable plate 308, the fixed plates 307 are arranged on the corresponding sliding blocks 305, the movable plates 308 are rotatably arranged on the fixed plates 307 around a first preset axis, the Kirschner pins 304 located between the fixed plates 307 and the movable plates 308 can be fixed, the first preset axis extends along the length direction between the fixed plates 307 and the movable plates 308, grooves 309 are formed in the side, which is close to each other, of the fixed plates 307 and the movable plates 308 are provided with grooves 309, when the fixed plates 307 and the movable plates 308 are correspondingly arranged on one sliding block 305, the corresponding sliding blocks 305 are arranged on the corresponding sliding blocks 305, the corresponding sliding blocks, the fixed plates are rotatably arranged on the fixed plates 307, the fixed plates 307 and the movable plates 308 are arranged on the sliding plates, when the sliding plates are completely arranged on the sliding plates, and the sliding plates are located on the sliding plates, and the sliding plates are completely, and the sliding plates.

In another embodiment, the bending angle of the end of each k-wire 304 is ninety degrees, the end of the k-wire 304 after bending is located in the groove 309, which reduces the depth of the groove 309 and the volumes of the fixed plate 307 and the movable plate 308 while ensuring that the k-wire 304 can bear larger torsion force.

In another embodiment, the fixed plate 307 and the movable plate 308 are provided with a clamping groove 310 on a surface close to each other, the clamping groove 310 extends along a first preset axis, the clamping grooves 310 on the fixed plate 307 and the movable plate 308 can be folded, and the two clamping grooves 310 are folded Shi Keshi to form a consistent needle 304, so that the k-wire 304 can be clamped and fixed.

In another embodiment, the fixed plate 307 is provided with a threaded hole 311, the threaded hole 311 is located between the rotation axis of the movable plate 308 and the clamping groove 310, the movable plate 308 is provided with a through hole 312, the positions of the threaded hole 311 and the through hole 312 correspond, the through hole 312 extends along the direction perpendicular to the rotation axis of the movable plate 308, the clamping assembly further comprises a stud 313, the stud 313 is slidably arranged in the through hole 312, one end of the stud 313 is in threaded connection with the threaded hole 311, one end of the stud 313 away from the threaded hole 311 is larger than the through hole 312 and is abutted against the movable plate 308, and rotation of the stud 313 in the threaded hole 311 can promote change of the movable range between the movable plate 308 and the fixed plate 307.

In another embodiment, both the spacing post 306 and the stud 313 can be rotated by a socket head cap wrench of the same specification, which is convenient for the operator to operate.

In another embodiment, the fixed plate 307 of one clamping component in each drawing mechanism is rotationally connected with the sliding block 305, and the rotation axes of the fixed plate 307 and the sliding block 305 are perpendicular to the second threaded rod 300, the other clamping component in the same drawing mechanism is fixedly connected with the sliding block 305, and the clamping component capable of relatively rotating with respect to the sliding block 305 and the clamping component fixedly connected with the sliding block 305 in the other drawing mechanism clamp the same kirschner wire 304 together, so that the second threaded rod 300 in each drawing mechanism can avoid pulling a wound due to being not perpendicular to the kirschner wire 304 in use, and secondary injury is caused to a patient.

In another embodiment, each drawing mechanism further includes a top block 302, a limiting sleeve 303 and a second spring 301, the top block 302 is slidably sleeved on the second threaded rod 300 along the axial direction of the second threaded rod 300, the top block 302 is in threaded connection with the second threaded rod 300, the top block 302 is not located between the two sliding blocks 305, the limiting sleeves 303 are fixedly installed on one surface, away from each other, of the two sliding blocks 305, the two limiting sleeves 303 are sleeved on the second threaded rod 300, the second spring 301 is located between one of the sliding blocks 305 and the top block 302, two ends of the second spring 301 are connected with the sliding blocks 305 and the top block 302, the inner diameter of the second spring 301 is larger than that of the limiting sleeve 303, the second spring 301 is sleeved on the limiting sleeve 303, the whole size is reduced, the drawing mechanism is small and light, and when the top block 302 abuts against the limiting sleeve 303, the second spring 301 is not fully compressed, and skin blood supply obstruction is avoided.

The working principle and the working method of the adjustable skin drafting device provided by the other embodiment are as follows:

One end of each of the two Kirschner wires 304 is bent ninety degrees, the shape of each of the Kirschner wires 304 is adjusted according to the position of the wound, and then the non-bent ends of the two Kirschner wires 304 are respectively inserted into the skin at one side of the wound along the length direction of the wound.

Then, a drafting mechanism is selected, a fixed plate 307 and a movable plate 308 in the drafting mechanism are separated, one Kirschner wire 304 is made to enter the position of a clamping groove 310, the movable plate 308 is rotated, the clamping groove 310 on the movable plate 308 and the clamping groove 310 on the fixed plate 307 are closed, the Kirschner wire 304 is clamped, the bent end of the Kirschner wire 304 is positioned in a groove 309, then a stud 313 is rotated, the fixed plate 307 and the movable plate 308 are locked by the stud 313, the other Kirschner wire 304 is also locked by using another clamping assembly, then a second spring 301 is sleeved on a second threaded rod 300, a top block 302 is screwed on the second threaded rod 300, the second threaded rod 300 is inserted into one of the sliding blocks 305, the second spring 301 is made to be in a compressed state, then a limit post 306 on the sliding block 305 is rotated by using an internal hexagonal wrench, the second threaded rod 300 is fixed, and then the second threaded rod 300 is inserted into the other sliding block 305, and the limit post 306 on the same is screwed by using an internal hexagonal wrench, at this time, the drafting mechanism is installed.

Then, the end of the k-wire 304 far from the locked end is cut off to a proper length, and another drafting mechanism is selected, wherein a clamping component which can rotate relative to the sliding block 305 in the drafting mechanism and a clamping component which cannot rotate relative to the sliding block 305 in the previous drafting mechanism clamp the same k-wire 304, one sliding block 305 cannot be blocked when sliding on the second threaded rod 300, the installation is completed in the same way, and the end of the k-wire 304 is positioned between the movable plate 308 and the fixed plate 307, so that the contact with skin is avoided.

Then, the limiting post 306 on the sliding block 305 close to the second spring 301 in each drafting mechanism is slowly unscrewed, the elastic force of the second spring 301 is released, the second spring 301 pushes the sliding block 305 to approach to the other sliding block 305 on the second threaded rod 300, the sliding block 305 drives the fixed plate 307 to move, the fixed plate 307 and the movable plate 308 drive the kirschner wire 304 to move, the wound is reduced, and when the second spring 301 is released, the second threaded rod 300 is clamped by pliers, so that the spring is prevented from being suddenly sprung.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims (10)

1. An adjustable skin stretching device is characterized by comprising a first contraction mechanism and a second contraction mechanism, wherein the first contraction mechanism comprises a first adhesive plate, a sliding plate, a zipper assembly and a balancing assembly; the first sticky plate is parallel to the sliding plate and is arranged at intervals, the zipper assembly comprises a pull head and two zippers, the two zippers are arranged between the first sticky plate and the sliding plate, one of the two zippers is fixedly connected with the first sticky plate, the other zipper is fixedly connected with the sliding plate, the pull head is arranged on one of the zippers in a sliding manner along the length direction of the zipper, when the pull head is arranged on the two zippers in a sliding manner along the first direction, the two zippers can be integrated, when the pull head slides along the second direction, the two zippers integrated can be separated from each other, and the directions of the first direction and the second direction are opposite;

The balance assembly comprises a sliding block, a pull rope and a one-way part, wherein the sliding block is arranged on the first sticky plate and the sliding plate in a sliding manner, when the slider slides on the zipper along the first direction, the sliding block is positioned at the rear of the slider, when the slider slides on the zipper along the second direction, the sliding block can be abutted with the slider, the pull rope is arranged between the sliding block and the slider, one end of the pull rope is arranged inside the sliding block, the other end of the pull rope is connected with the slider, the length of the pull rope between the sliding block and the slider is adjustable, and the one-way part is used for enabling the sliding block to slide only in the direction of combining two zippers into a whole;

The second contraction mechanism comprises a second sticky plate and a fine adjustment assembly, the second sticky plate is located on one side, away from the first sticky plate, of the sliding plate, the second sticky plate and the first sticky plate are arranged at parallel intervals, the first sticky plate and the second sticky plate are used for being adhered to two sides of a wound on the skin, and the fine adjustment assembly is arranged between the second sticky plate and the sliding plate and used for fine adjustment of the distance between the edges of the skin on two sides of the wound.

2. The adjustable skin drafting device according to claim 1, wherein the upper surfaces of the first adhesive plate and the sliding plate are provided with sliding grooves, and when the two slide fasteners are arranged oppositely, the same ends of the two sliding grooves penetrate through the first adhesive plate and the sliding plate respectively; two limiting blocks are installed at the bottom of the sliding block, and each limiting block is correspondingly arranged in one sliding groove in a sliding mode.

3. An adjustable skin stretching device as claimed in claim 2, wherein two unidirectional parts are provided, each unidirectional part comprising a toothed plate, a groove, a clamping block and a first spring; the toothed plate is fixedly arranged in one chute; the groove is formed in the bottom of the sliding block and is positioned right above the sliding groove, the clamping block is positioned in the groove and is rotationally connected with the sliding block, and the clamping block can be clamped with the toothed plate; the first spring is arranged in the groove, one end of the first spring is connected with the sliding block, and the other end of the first spring is connected with the clamping block.

4. An adjustable skin drafting device according to claim 3, wherein the teeth on each toothed plate are unidirectional helical teeth, the helical teeth face the direction in which the slider slides to control the two zippers to be combined, a boss is arranged on one surface of the clamping block close to the toothed plate, the boss can be clamped with the helical teeth, an inclined surface is arranged on one surface of the boss close to the toothed plate, and the inclined surface faces the direction in which the helical teeth face.

5. An adjustable skin drafting device according to claim 2, wherein the first adhesive plate and one end of the slide plate, which is not penetrated by the slide groove, are provided with limiting ropes, and two ends of each limiting rope are respectively connected with the first adhesive plate and the slide plate.

6. The adjustable skin stretching device of claim 1, wherein the balancing assembly further comprises a rotating lever and an adjustment knob; the inside cavity that is equipped with of slider, bull stick rotate around its axis and set up in the cavity, adjust knob rotates and sets up on the slider, and adjust knob and bull stick fixed connection, the stay cord sets up on the bull stick in the inside one end fixed mounting of slider.

7. An adjustable skin stretching apparatus as claimed in claim 1, wherein the slider is provided with a pull cord on the side remote from the slider.

8. An adjustable skin stretching device as claimed in claim 1, wherein the pull cord has elasticity.

9. An adjustable skin stretching device as claimed in claim 1, wherein the fine adjustment assembly comprises a first support beam, a first fixed block, a second support beam, a second fixed block and a first threaded rod; the first support beam is fixedly arranged on the second adhesive plate, the length direction of the first support beam is consistent with the length direction of the second adhesive plate, a plurality of first fixing blocks are arranged, and the first fixing blocks are arranged on the first support beam along the length direction of the first support beam in an array manner; the second support beams are fixedly arranged on the sliding plate, the second support beams are arranged in parallel with the first support beams, the second fixing blocks are fixedly arranged on the second support beams, the number of the second fixing blocks is consistent with that of the first fixing blocks, and the position of each second fixing block is opposite to that of the first fixing block; one end of the first threaded rod is rotatably arranged on one surface, close to the first fixed block, of the second fixed block, the other end of the first threaded rod penetrates through the first fixed block, and the first threaded rod is in threaded connection with the first fixed block.

10. An adjustable skin drafting device as claimed in claim 9 wherein the first threaded rod is rotatably provided with a ball at one end of the second fixed block, the second fixed block being hinged to the first threaded rod.