CN216257268U

CN216257268U - Bidirectional crochet type skin stretching closer

Info

Publication number: CN216257268U
Application number: CN202122540142.5U
Authority: CN
Inventors: 姜秀娟; 韩凯; 周鑫鑫
Original assignee: Qinglikang Medical Technology Suzhou Co ltd
Current assignee: Qinglikang Medical Technology Suzhou Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-12
Anticipated expiration: 2031-10-21

Abstract

The utility model provides a bidirectional crochet type skin stretching closer, which comprises: a pair of crochet hook components and drawing components; the pair of crochet hook components are respectively arranged at two sides of a skin wound, each crochet hook component comprises two connectors and two groups of crochet hooks, the two connectors are movably matched and connected together, the two groups of crochet hooks are respectively and fixedly connected below the two connectors, the hook direction of each group of crochet hooks is the same, and the hook directions of the two groups of crochet hooks fixedly connected below the two connectors are opposite; the pulling assembly comprises two connecting pieces, a buckle and a brace, wherein each connecting piece is connected with two connectors of the crochet hook assembly in a movable fit mode, the two connectors are connected together in a matched mode, the buckle is fixedly connected onto the connecting pieces, the brace is provided with a tooth socket, the brace penetrates through the buckle on the connecting pieces, and the brace is movably matched with the buckle. The utility model can effectively prevent displacement, tilting or separation in the traction process, and can realize firm fixation and effective traction on the skin.

Description

Bidirectional crochet type skin stretching closer

Technical Field

The utility model relates to the technical field of surgical instruments clinically applicable to trauma surgery, orthopedics and plastic surgery, in particular to a bidirectional crochet hook type skin stretching closer.

Background

Skin defects are a very troublesome problem that surgeons often need to deal with clinically. Common causes of skin defects include tumors, scars, trauma, inflammation, skin lesions and the like, and skin defects with large areas cannot be directly sutured to close wounds. At present, the main clinical treatment modes for skin defects at home and abroad comprise skin patch transplantation, flap transplantation, artificial skin, skin dilatation, skin stretching and the like. The common treatment is flap transplantation or skin dilation, which is complicated and highly complicated.

The skin stretching and extending operation uses a skin stretching and extending closer, normal skin at two sides of a skin defect wound extends under external force stretching by utilizing the extensibility of the skin, the distance of the wound edge is gradually reduced or closed, the stress relaxation of the skin is realized, so that extra skin is obtained, the reduction or closing of the wound surface is realized, the skin stretching and extending operation has the characteristics of no need of skin grafting, quick closing of the wound surface, reduction of complications and the like, and the skin stretching and extending operation becomes a new skin defect treatment mode.

Skin stretch closures can be classified as invasive and non-invasive depending on whether they are invasive inside the skin. The invasive method generally adopts kirschner wires, steel needles, leather nails, suture lines, steel wires, elastic bands, rubber bands and the like to invade the skin stretching closer into the skin to be fixed with the skin stretching closer. The non-invasive method adopts the mode of pasting to adhere the skin stretching closer on the skin surface and fix with it. The existing skin stretching closer clinically or in the research and development stage at present has the following defects: 1. the structure is too complex, the clinical installation operation is complicated, the time consumption is long, and the operation burden of medical staff is increased; 2. the traction force is insufficient or excessive, and the traction force cannot be locally and effectively adjusted so as to meet the requirements of the traction force of different parts of the wound; 3. mostly, the stretching is unidirectionally adjusted, and the back-off cannot be realized or is not easy to realize after the stretching is over-tight; 4. the cross section is designed to be planar and cannot adapt to non-planar or irregular wound wounds; 5. the volume is large, and inconvenience is brought to the patient who cannot stretch and close the operating table in a short time and needs to wear the operating table for a long time after the operation; 6. the price is high, and the economic burden of the patient is heavy.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the background art, it is an object of the present invention to provide a bidirectional bearded needle type skin stretching closer which can effectively prevent the skin from being lifted or separated during skin stretching, and can achieve firm fixation and effective stretching to the skin.

In order to achieve the above object, the present invention provides a bidirectional bearded needle type skin stretching closer, comprising: a pair of crochet hook components and drawing components; the pair of crochet hook components are respectively arranged at two sides of a skin wound, each crochet hook component comprises two connectors and two groups of crochet hooks, the two connectors are movably matched and connected together, the two groups of crochet hooks are respectively and fixedly connected below the two connectors, the hook direction of each group of crochet hooks is the same, and the hook directions of the two groups of crochet hooks fixedly connected below the two connectors are opposite; the pulling assembly comprises two connecting pieces, a buckle and a brace, wherein each connecting piece is connected with two connectors of the crochet hook assembly in a movable fit mode, the two connectors are connected together in a matched mode, the buckle is fixedly connected onto the connecting pieces, the brace is provided with a tooth socket, the brace penetrates through the buckle on the connecting pieces, and the brace is movably matched with the buckle.

Optionally, the drawing assembly comprises a clamping groove, a buckle and a brace, the clamping groove and the buckle are respectively and fixedly connected to the two connecting pieces, the brace is provided with a tooth groove, the brace penetrates through the clamping groove and the buckle on the two connecting pieces, and the brace is movably matched with the buckle.

Optionally, the drawing assembly comprises two buckles and a brace, the two buckles are respectively and fixedly connected to the two connecting pieces, the brace is provided with a tooth groove, the brace penetrates through the two buckles on the two connecting pieces, and the brace is movably matched with the buckles.

Optionally, the number of the set of crochet hooks is at least 2.

Optionally, each connecting member is connected with two connectors in a mechanical fit manner, and the fit manner includes one of a peripheral wrapping manner, a hole pin, a buckle and a tongue and groove fit manner.

Optionally, the two joints of each crochet hook component are connected in a mechanical matching mode, and the matching mode comprises one of hole pin, buckle and tongue and groove matching modes.

Optionally, a plurality of bi-directional crochet skin stretching closures are used side-by-side.

Optionally, when a plurality of bidirectional bearded needle type skin stretching closers are used side by side, the pulling strip directions of two adjacent pulling assemblies are the same or opposite.

Optionally, the crochet hook is made of a metal material, and the joint, the connecting piece, the pull strip and the buckle are made of a plastic or metal material.

Optionally, the crochet hook and the connector are connected in an integral injection molding, mechanical matching or adhesive bonding mode; the connecting piece and the buckle are connected in an integrated injection molding mode, a mechanical matching mode or an adhesive bonding mode.

The utility model has the following beneficial effects:

1. the bidirectional crochet hook is arranged, can be fixed with skin more firmly, can effectively prevent displacement, tilting or separation in the traction process, and can realize firm fixation and effective traction on the skin.

2. The utility model is provided with the drawing component, the brace is soft and can adapt to various wounds with irregular planes and non-planes, and the tension force can be conveniently adjusted and can be reversibly adjusted through the brace and the buckle.

3. Set up crochet hook subassembly and pull subassembly, can firmly fix a position, loosen when conveniently taking off again and demolish simple structure, convenient operation.

4. The utility model has small volume, can be attached to the skin, is suitable for various wounds which are regular or irregular, flat or uneven, has small wound to the skin, does not influence the postoperative activity of a patient, and has very convenient operation and low price.

5. The skin stretching closer has the advantages of wide clinical indication, convenient operation, operation time saving, capability of quickly and effectively reducing skin defects, capability of solving the defects of products in the existing market, wide application range of products, small skin wound, capability of effectively realizing stretching closure of the skin and avoiding skin grafting.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.

Figure 1 shows a perspective view of one embodiment of the bi-directional bearded needle skin stretching closure of the present invention.

Fig. 2 shows a schematic view of the bearded needle assembly of the present invention.

FIG. 3 shows a schematic view of the mated connection of two sliders of the bearded needle assembly of FIG. 2.

Fig. 4 shows a schematic view of two fitting and connector mating connections.

Fig. 5 shows a schematic view of the pull strip, catch and prisable head of the drawer assembly.

Figure 6 shows a schematic view of a plurality of bi-directional crochet skin stretching closures in use side-by-side.

Description of reference numerals:

1-clamping groove 2-connector 3-connecting piece 4-buckle 5-brace 6-crochet hook 7-concave-convex groove structure 8 matched between connector and connector-concave-convex groove structure 9 matched between connector and connecting piece-pryable head

Detailed Description

Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein.

Referring to fig. 1 to 6, the bidirectional bearded needle type skin stretching closer according to the present invention includes: a pair of crochet hook components and drawing components; the pair of crochet hook components are respectively arranged at two sides of a skin wound, each crochet hook component comprises two connectors 2 and two groups of crochet hooks 6, the two connectors 2 are movably matched and connected together, the two groups of crochet hooks 6 are respectively and fixedly connected below the two connectors 2, the hooking directions of the crochet hooks 6 of each group are the same, and the hooking directions of the two groups of crochet hooks 6 fixedly connected below the two connectors 2 are opposite; the pull assembly comprises two connecting pieces 3, a buckle 4 and a brace 5, wherein each connecting piece 3 is connected with two joints 2 connected together in a movable fit manner in a matching manner with the crochet hook assembly, the buckle 4 is fixedly connected onto the connecting pieces 3, the brace 5 is provided with a tooth groove, the brace 5 penetrates through the buckle 4 on the connecting pieces 3, and the brace 5 is movably matched with the buckle 4.

In the bidirectional bearded needle type skin stretching closer, a buckle 4 is fixedly connected to a connecting piece 3, a brace 5 can be assembled on the buckle 4, the buckle 4 is provided with a pryable head 9, referring to fig. 5, the pryable head 9 can be lifted or fallen down, when the brace 5 is lifted, the brace 5 can advance or retreat from the buckle 4, when the brace 5 falls, the brace 5 is clamped, so that the brace 5 can be pulled and fixed, and the brace 5 has a reversible pulling function.

The bidirectional crochet hook is used for stretching wound skin which is difficult to sew directly, the adopted bidirectional crochet hook can be fixed with the skin more firmly, the displacement, the tilting or the separation can be effectively prevented in the stretching process, and the firm fixation and the effective stretching can be realized for the skin.

In an embodiment of the drawing assembly, referring to fig. 1, the drawing assembly includes a clamping groove 1, a buckle 4 and a brace 5, the clamping groove 1 and the buckle 4 are respectively and fixedly connected to two connecting pieces 3, the brace 5 is provided with a tooth socket, the brace 5 passes through the clamping groove 1 and the buckle 4 on the two connecting pieces 3, the clamping groove 1 is located at a starting end of the brace 5 to clamp the brace 5, the buckle 4 is located on the tooth socket of the brace 5, and the brace 5 is movably matched with the buckle 4.

In another embodiment of the drawing assembly (not shown), the drawing assembly comprises two buckles 4 and a brace 5, the two buckles 4 are respectively fixedly connected to the two connecting pieces 3, the brace 5 is provided with a tooth socket, the brace 5 passes through the two buckles 4 on the two connecting pieces 3, the two buckles are both positioned on the tooth socket of the brace 5, the brace 5 is movably matched with the buckles 4, in this embodiment, the two connecting pieces 3 are both provided with the buckles 4, the two buckles 4 are both movably matched with the brace 5, and the drawing and fixing of the brace 5 can be realized in two directions.

In an embodiment of the crochet hook assembly, referring to fig. 1 and 2, the number of the set of crochet hooks is at least 2, the number of the set of crochet hooks is not limited, and may be multiple (more than 2), and the number of the set of crochet hooks can be selected according to the requirement.

In an embodiment of the connector 3, referring to fig. 4, the connector 3 may be a splint, but the structure of the connector 3 is not limited thereto, and a structure capable of being assembled with and performing the function of the two joints 2 of each crochet hook assembly falls within the scope of the concept of the present invention.

In the bi-directional crochet skin stretching closer of the present invention, each connector 3 is connected with two connectors 2 in a mechanical engagement, including but not limited to one of a circumferential wrap, a hole pin, a snap, a tongue and groove engagement. In the embodiment shown in fig. 4, each connector 3 is connected with two connectors 2 in a tongue and groove fit manner, and fig. 4 shows only an exemplary tongue and groove structure 8 for fitting between the connectors, and the present invention is not limited to this structure, but also encompasses all structures in accordance with the inventive concept.

In the bi-directional bearded needle type skin stretching closer of the utility model, the two connectors 2 of each bearded needle assembly are connected in a mechanical matching mode, and the matching mode includes but is not limited to one of hole pin, buckle and tongue-and-groove matching mode. In the embodiment shown in fig. 3, the two connectors 2 of each crochet hook component are connected in a tongue and groove fit manner, and fig. 3 only shows an exemplary tongue and groove structure 7 for fitting between the connectors, and the utility model is not limited to this structure, but also includes all structures in accordance with the inventive concept.

The bidirectional bearded needle type skin stretching closer can be used independently according to clinical conditions, and can also be used in a plurality of combinations. The number of the skin stretching closers can be one or more than one, and the skin stretching closers can be used side by side according to the length and the shape of the wound.

Referring to the embodiment shown in fig. 6, multiple bi-directional bearded needle skin stretching closures can be used side-by-side. When a plurality of bidirectional bearded needle type skin stretching closers are used side by side, the directions of the pull strips 5 of two adjacent drawing assemblies are the same or opposite. In the embodiment shown in fig. 6, the four bi-directional bearded needle type skin stretching closers are used side by side due to the larger length of the wound (middle shaded part), wherein the direction of the pull strip 5 of the four pulling assemblies is the same, so that multi-row unidirectional pulling is realized. In another embodiment (not shown), the direction of the pull strip of two adjacent pull assemblies can be opposite, so that the bidirectional pulling is realized. The utility model is not limited to the embodiments shown, for example, a plurality of drawing assemblies can be partially identical and partially reversed, selected according to the actual requirements.

In the bidirectional bearded needle type skin stretching closer, the bearded needle 6 is made of metal materials, and the joint 2, the connecting piece 3, the pull strip 5 and the buckle 4 are made of plastic or metal materials; the crochet hook 1 is connected with the connector 2 through integral injection molding, mechanical matching or adhesive bonding; the connecting piece 3 and the buckle 4 are connected in an integral injection molding mode, a mechanical matching mode or an adhesive bonding mode.

In use, taking the embodiment shown in fig. 1 as an example, two connectors 2 with the crochet hook 1 are respectively inserted into the skin on two sides of the wound one by one in a mode that the hooking direction of the crochet hook 6 is opposite and the concave-convex grooves of the connectors 2 are adjacent, and then the two adjacent connectors 2 are assembled together through the concave-convex groove structure 7. And finally, assembling the connecting piece 3 above the joint 2 through a concave-convex groove structure 8, enabling the brace 5 to penetrate through the clamping groove 1 and the buckle 4 on the connecting piece 3, and realizing the traction of the skin through drawing the brace 5. If the pulling force is too tight or the tension force is too large, the prying head 9 of the buckle 4 can be lifted, and the pull strip 5 is retracted to a proper position.

When the skin on two sides of the wound is gradually pulled and stretched to the magnitude of the tension capable of being sutured, the wound is sutured or closed without continuously pulling, then the pryable head 9 of the buckle 4 is lifted, the pull strip 5 is taken down, or the pull strip 5 is directly cut above the wound, then the connecting piece 3 is sequentially taken down, the matching part of the adjacent heads 2 is loosened, and the joint 2 with the crochet hook 6 is taken out from the skin one by one.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A bidirectional bearded needle type skin stretching closer is characterized by comprising: a pair of crochet hook components and drawing components;

the pair of crochet hook components are respectively arranged at two sides of a skin wound, each crochet hook component comprises two connectors and two groups of crochet hooks, the two connectors are movably matched and connected together, the two groups of crochet hooks are respectively and fixedly connected below the two connectors, the hook direction of each group of crochet hooks is the same, and the hook directions of the two groups of crochet hooks fixedly connected below the two connectors are opposite;

the pulling assembly comprises two connecting pieces, a buckle and a brace, wherein each connecting piece is connected with two connectors of the crochet hook assembly in a movable fit mode, the two connectors are connected together in a matched mode, the buckle is fixedly connected onto the connecting pieces, the brace is provided with a tooth socket, the brace penetrates through the buckle on the connecting pieces, and the brace is movably matched with the buckle.

2. The bidirectional bearded needle type skin stretching closer according to claim 1, wherein the drawing component comprises a clamping groove, a buckle and a pulling strip, the clamping groove and the buckle are respectively and fixedly connected to the two connecting pieces, the pulling strip is provided with a tooth socket, the pulling strip penetrates through the clamping groove and the buckle on the two connecting pieces, and the pulling strip is movably matched with the buckle.

3. The bidirectional bearded needle type skin stretching closer according to claim 1, wherein the drawing component comprises two buckles and a pulling strip, the two buckles are respectively and fixedly connected to the two connecting pieces, the pulling strip is provided with tooth grooves, the pulling strip penetrates through the two buckles on the two connecting pieces, and the pulling strip is movably matched with the buckles.

4. The bi-directional bearded needle type skin stretching closer according to claim 1, wherein the number of the set of bearded needles is at least 2.

5. The bi-directional bearded needle type skin stretching closer according to claim 1, wherein each connector is connected with two connectors in a mechanical fit manner, the fit manner comprises one of a peripheral wrapping manner, a hole pin, a buckle, a tongue and groove fit manner.

6. The bi-directional bearded needle type skin stretching closer according to claim 1, wherein the two connectors of each bearded needle assembly are connected in a mechanical fit manner, the fit manner comprises one of a hole pin, a buckle, a tongue and groove fit manner.

7. The bi-directional bearded needle type skin stretching closure device of claim 1, wherein a plurality of bi-directional bearded needle type skin stretching closure devices are used side by side.

8. The bi-directional bearded needle skin stretching closure of claim 7 wherein a plurality of bi-directional bearded needle skin stretching closures are used side by side wherein the direction of pull strip of adjacent two pulling assemblies is the same or opposite.

9. The bi-directional bearded needle type skin stretching closer of claim 1, wherein the bearded needle is made of metal material, and the joint, the connecting piece, the pulling strip and the buckle are made of plastic or metal material.

10. The bidirectional bearded needle type skin stretching closer according to claim 1, wherein the bearded needle is connected with the connector by means of integral injection molding, mechanical fit or adhesive bonding; the connecting piece and the buckle are connected in an integrated injection molding mode, a mechanical matching mode or an adhesive bonding mode.