CN222303980U - A skin grafting device for deep wound treatment - Google Patents

Abstract

The utility model relates to the technical field of medical devices, and discloses a skin grafting device for treating deep wounds, including a hinged first clamp body and a second clamp body, the first clamp body and the second clamp body have the same structure, the first clamp body and the second clamp body both include a clamp head and a clamp handle, the clamp head partially extends downward to form a clamp mouth, the outer side wall of the clamp mouth is a conical surface, the cross-section of the clamp mouth gradually decreases along the direction of the clamp mouth away from the clamp head, the inner side wall of the clamp mouth is provided with a conical groove, the first clamp body and the second clamp body are relatively rotated until the two clamp mouths are in contact, and the two conical grooves cooperate to form a positioning hole for implanting a skin column; the end of the clamp handle away from the clamp mouth is provided with a gripping portion, and the gripping portion is provided with a reserved hole for grasping. The beneficial effects of the utility model: it can be applied to three-dimensional implant surgery to facilitate the transplantation of skin columns.

Description

Skin grafting device for deep wound treatment

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a skin grafting device for deep wound treatment.

Background

At present, the deep wound surface refers to a wound surface or full-thickness skin defect with the depth of more than II degrees, is commonly seen in burn, trauma, pressure sore and the like, the wound surface loses the healing foundation due to massive necrosis of epidermis and dermis accessories, skin grafting repair is often needed, scab cutting and skin grafting are common operations, the whole scab cutting and large skin taking transplanting are carried out, the pure edge thick skin graft has the advantages of low content of dermis components, scar hyperplasia and serious contracture, poor long-term effect, good elasticity after the medium-thickness or full-thickness skin graft survives, small chromatic aberration, slow blood transport establishment, poor drainage and easy infection, surgical failure is caused, and the damage to a skin supply area is large.

The artificial dermis is a tissue engineering dermis substitute, provides a new choice for repairing wound surface of skin defect, and the current application of the artificial dermis generally comprises two steps, namely, the first-stage artificial dermis transplantation is carried out for 2-3 weeks, the second-stage autologous knife thick dermis transplantation is carried out, the traditional plane transplantation has the problems of long time, high cost and the like, and when the previous operations of taking skin, transplanting skin, removing crust of burn and the like are carried out, a skin taking cutter is needed to take skin by fault, then a fault skin slice is attached to the wound surface, skin slice necrosis, contracture deformation, scar hyperplasia are easy to occur, and sweat gland and sebaceous gland functions are avoided.

In order to solve the problems, a brand new skin grafting mode is developed, the three-dimensional planting is different from the conventional planar transplanting, the lattice planting provides 'seeds' for the wound surface, healing is realized by gradually and three-dimensionally expanding and fusing the dermatomes, the survival of the miniature dermatomes is effectively improved, the damage of a skin supply area is reduced, the waste of skin sources is avoided, the secretion function of partial sweat glands and sebaceous glands can be recovered after the three-dimensional expansion and healing of the miniature dermatomes, the desquamation and dryness of the skin are reduced, the relative humidity is kept, the skin quality after healing is improved, and the occurrence of residual wound surfaces is reduced. The prior art does not provide a skin grafting device suitable for grafting a skin column in three-dimensional planting.

Disclosure of utility model

The utility model aims to provide a skin grafting device for deep wound treatment, which can be applied to three-dimensional implantation surgery and is convenient for realizing dermatoplasty.

In order to achieve the above purpose, the utility model provides a skin grafting device for deep wound treatment, which comprises a first hinged clamp body and a second hinged clamp body, wherein the first clamp body and the second clamp body have the same structure, the first clamp body and the second clamp body respectively comprise a clamp head and a clamp handle, the clamp head locally extends downwards to form a clamp mouth, the outer side wall of the clamp mouth is a conical surface, the cross section of the clamp mouth is sequentially reduced along the direction that the clamp mouth is far away from the clamp head, the inner side wall of the clamp mouth is provided with a conical groove, the first clamp body and the second clamp body relatively rotate to be attached to the clamp mouth, the two conical grooves are matched to form a positioning hole for planting a skin grafting column, one end of the clamp handle, which is far away from the clamp mouth, is provided with a holding part, and the holding part is provided with a reserved hole for holding.

Furthermore, the inner side walls of the first clamp body and the second clamp body are provided with clamping parts in a staggered mode, and the opposite surfaces of the two clamping parts are provided with tooth grooves which are in meshing limit.

Still further, the clamping portion is located at one end of the grip handle close to the holding portion.

Still further, be equipped with first articulated portion on the first pincers body, be equipped with the second articulated portion on the second pincers body, first articulated portion with the second articulated portion passes through the pin and articulates.

Further, an included angle between the first clamp body and the second clamp body is smaller than 90 degrees.

Still further, the pincers handle includes first body of rod and second body of rod, first body of rod one end with the binding clip is connected, and the other end inserts and locates the second body of rod, the other end of second body of rod is connected with the portion of gripping, first body of rod with the second body of rod has the pilot hole along vertical direction equipartition, is used for adjusting first body of rod is in the internal depth of insertion of second body of rod.

Further, the inner wall of the second rod body is provided with a reinforcing rib.

Furthermore, anti-skid patterns are uniformly distributed on the inner wall of the preformed hole in an annular mode.

Still further, a clamping groove for limiting the rotation of the first hinge part is formed in the second hinge part.

Further, the binding clip and the clamp handle are integrally formed.

Compared with the prior art, the skin grafting device for deep wound treatment has the beneficial effects that the first forceps body and the second forceps body are identical in structure and hinged, and the whole structure of the skin grafting device is simple. The first forceps body and the second forceps body comprise forceps heads and forceps handles, the forceps heads partially extend downwards to form forceps mouths, the outer side walls of the forceps mouths are conical surfaces, the cross sections of the forceps mouths are sequentially reduced along the direction that the forceps mouths are far away from the forceps heads, and the forceps mouths can be directly inserted into wound surfaces to form skin pits. The conical groove is formed in the inner side wall of the clamp mouth, the first clamp body and the second clamp body relatively rotate to be attached to the two clamp mouths, the two conical grooves are matched to form a positioning hole for planting the skin grafting column, the skin grafting column is guided into the skin pit along the positioning hole, the skin grafting efficiency can be effectively improved, and the operation time is reduced. One end of the forceps handle, which is far away from the forceps mouth, is provided with a holding part, and the holding part is provided with a preformed hole for holding, so that the use and the operation of the skin grafting device are facilitated.

Drawings

FIG. 1 is a schematic diagram of a skin grafting apparatus for deep wound treatment according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a part of a skin graft device for deep wound treatment according to an embodiment of the present utility model;

Fig. 3 is a schematic structural view of a forceps handle of a skin grafting device for deep wound treatment according to an embodiment of the present utility model.

In the figure, 1, a first clamp body, 11, a first hinge part, 2, a second clamp body, 21, a second hinge part, 211, a clamping groove, 3, a clamp head, 4, a clamp handle, 41, a first rod body, 42, a second rod body, 43, an assembly hole, 5, a holding part, 51, a reserved hole, 6, a clamp mouth, 61, a conical groove, 7, a positioning hole, 8, a clamping part, 81, a tooth socket, 9 and a pin.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. in the present utility model are based on the positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices and elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "first", "second", etc. are used in the description of various information, but the information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model.

As shown in fig. 1, the skin grafting device for deep wound treatment of the preferred embodiment of the utility model is used for forming a skin pit on a wound substrate, and can guide a miniature skin column into the skin pit to realize three-dimensional skin column planting of the wound, and comprises a first forceps body 1 and a second forceps body 2 which are hinged, and in order to simplify the overall structure of the skin grafting device, the first forceps body 1 and the second forceps body 2 have the same structure, specifically, the first forceps body 1 and the second forceps body 2 comprise forceps heads 3 and forceps handles 4, in order to facilitate the formation of the skin pit on the wound substrate, as shown in fig. 2, the forceps heads 3 locally extend downwards to form forceps mouths 6, the outer side wall of the forceps mouths 6 is a conical surface, and the cross section of the forceps mouths 6 is sequentially reduced along the direction of the forceps mouths 6 away from the forceps heads 3, so that the forceps mouths 6 can be conveniently inserted into the wound surface of the substrate to form the skin pit. In order to be convenient for with the leading-in skin hole of miniature dermatome, offered the awl groove 61 at the inside wall of pincers mouth 6, the relative rotation of first pincers body 1 and second pincers body 2 is laminated to two pincers mouths 6, and two awl grooves 61 cooperation forms the locating hole 7 that is used for planting the dermatome, can realize the quick location implantation of dermatome, reduces the operation time. In order to facilitate the holding operation of the skin grafting device, one end of the forceps handle 4, which is far away from the forceps mouth 6, is provided with a holding part 5, the holding part 5 is provided with a preformed hole 51 for holding, and when in use, the thumb and the index finger are respectively inserted into the two preformed holes 51 to drive the first forceps body 1 and the second forceps body 2 to open and close.

Further, in order to facilitate the attachment and fixation of the two pliers mouths 6 during the use, as shown in fig. 1, the inner side walls of the first pliers body 1 and the second pliers body 2 are provided with the clamping parts 8 in a staggered manner, and the opposite surfaces of the two clamping parts 8 are provided with tooth grooves 81 for engaging and limiting. When the two clamp mouths 6 are attached and fixed, tooth grooves 81 on the two clamping parts 8 are meshed, mechanical limit is realized, the size of the positioning hole 7 is prevented from being changed, and the leather column transplanting is facilitated. Further, in order to enhance the fixing effect of the clamping portion 8, the clamping portion 8 is disposed at an end of the grip 4 near the grip 5.

In some embodiments, in order to realize the hinging between the first forceps body 1 and the second forceps body 2, as shown in fig. 2, a first hinging portion 11 is provided on the first forceps body 1, a second hinging portion 21 is provided on the second forceps body 2, the first hinging portion 11 and the second hinging portion 21 are hinged by a pin 9, and an included angle between the first forceps body 1 and the second forceps body 2 is smaller than 90 °. In order to limit the included angle, a clamping groove 211 for limiting the rotation of the first hinge part 11 is formed in the second hinge part 21. Further, in some embodiments, to simplify the structure of the binding clip 3 and the grip handle 4 and enhance the stability between the structure of the binding clip 3 and the grip handle 4, the binding clip 3 and the grip handle 4 are integrally formed of stainless steel.

In some embodiments, in order to facilitate adjusting the overall length of the skin grafting device, so as to facilitate adapting to different skin grafting situations, as shown in fig. 3, specifically, the forceps handle 4 includes a first rod 41 and a second rod 42, one end of the first rod 41 is connected with the forceps head 3, the other end of the second rod 42 is inserted into the second rod 42, the other end of the second rod 42 is connected with the holding part 5, that is, the first rod 41 is a hollow rod, one end of the first rod 41 is inserted into the second rod 42, in order to facilitate adjusting the insertion depth of the first rod 41 in the second rod 42, in this way, the overall length of the skin grafting device is adjusted, the assembly holes 43 are uniformly distributed in the first rod 41 and the second rod 42 along the vertical direction, after the first rod 41 and the second rod 42 are adjusted to a proper length, the first rod 41 and the second rod 42 are inserted into the assembly holes 43 through positioning pieces, and the positioning pieces can be positioning pins or screws, and correspondingly set according to the assembly holes 43. Further, in order to improve the structural strength of the second rod 42, a reinforcing rib is provided on the inner wall of the second rod 42, so as to improve the structural strength of the whole pliers handle 4, and the reinforcing rib is in a cross shape or a cross shape.

In some embodiments, in order to increase friction between the preformed hole and the finger, slipping is avoided when the skin grafting device is used, and anti-skidding patterns are uniformly distributed on the inner wall of the preformed hole in an annular mode.

The utility model adopts artificial dermis transplanting combined with self miniature dermatome lattice planting, provides seeds for wound surface through lattice planting, gradually expands and fuses the dermatome to realize healing, and has the working process that firstly, a cylindrical dermatome with blood supply is formed on the clean wound surface through a pincer mouth 6 with a 5mm hole pitch lattice type opening, then, the periwound skin is used as a dermatome to prepare a miniature dermatome with fat with the diameter of 1-2mm, the miniature dermatome is planted in the dermatome, and the miniature dermatome is covered with artificial dermis, which is beneficial to forming a bracket-new capillary-cell complex around the dermatome, and promotes the dermatome planting of Pi Zhuli integral lattice type full wound surfaces.

In summary, the embodiment of the utility model provides a skin grafting device for deep wound treatment, the first forceps body 1 and the second forceps body 2 have the same structure and are hinged, and the whole structure of the skin grafting device is simple. The first forceps body 1 and the second forceps body 2 comprise a forceps head 3 and a forceps handle 4, a holding part 5 is arranged at one end, far away from the forceps mouth 6, of the forceps handle 4, a preformed hole 51 for holding is formed in the holding part 5, and the use and the operation of the skin grafting device are facilitated. The clamp head 3 extends downwards locally to form a clamp mouth 6, the outer side wall of the clamp mouth 6 is a conical surface, the cross section of the clamp mouth 6 is sequentially reduced along the direction of the clamp mouth 6 away from the clamp head 3, and the clamp mouth can be directly inserted into a wound surface substrate to form a skin pit. The conical groove 61 has been seted up to the inside wall of pincers mouth 6, and first pincers body 1 and second pincers body 2 rotate relatively to two pincers mouths 6 laminating, and two conical grooves 61 cooperation forms the locating hole 7 that is used for planting the skin post, with skin post along the leading-in skin hole of locating hole 7 in, can effectively improve skin post planting efficiency, reduce the operation time.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. The skin grafting device for deep wound treatment is characterized by comprising a first hinged clamp body and a second hinged clamp body, wherein the first clamp body and the second clamp body are identical in structure, the first clamp body and the second clamp body respectively comprise a clamp head and a clamp handle, the clamp heads locally extend downwards to form clamp mouths, the outer side walls of the clamp mouths are conical surfaces, the cross sections of the clamp mouths are sequentially reduced along the direction that the clamp mouths are far away from the clamp heads, conical grooves are formed in the inner side walls of the clamp mouths, the first clamp body and the second clamp body relatively rotate to be attached to the clamp mouths, the two conical grooves are matched to form positioning holes for planting skin grafting columns, and one ends of the clamp handles, which are far away from the clamp mouths, are provided with holding parts, and reserved holes for grasping are formed in the holding parts.

2. The skin grafting device for deep wound treatment according to claim 1, wherein the inner side walls of the first forceps body and the second forceps body are provided with clamping parts in a staggered mode, and the opposite surfaces of the two clamping parts are provided with tooth grooves for engaging and limiting.

3. The skin grafting device for deep wound treatment according to claim 2, wherein the clamping portion is located at one end of the forceps handle near the holding portion.

4. The skin grafting device for deep wound treatment according to claim 1, wherein the first forceps body is provided with a first hinge part, the second forceps body is provided with a second hinge part, and the first hinge part and the second hinge part are hinged through pins.

5. The skin grafting apparatus for deep wound treatment of claim 1, wherein the angle between said first and second forceps bodies is less than 90 °.

6. The skin grafting device for deep wound treatment according to claim 1, wherein the forceps handle comprises a first rod body and a second rod body, one end of the first rod body is connected with the forceps head, the other end of the first rod body is inserted into the second rod body, the other end of the second rod body is connected with the holding part, and assembly holes are uniformly distributed in the vertical direction of the first rod body and the second rod body and used for adjusting the insertion depth of the first rod body in the second rod body.

7. The skin grafting apparatus for deep wound treatment according to claim 6, wherein the inner wall of the second rod body is provided with reinforcing ribs.

8. The skin grafting device for deep wound treatment according to claim 1, wherein the inner wall of the preformed hole is uniformly distributed with anti-skidding patterns in a ring shape.

9. The skin grafting device for deep wound treatment according to claim 4, wherein the second hinge part is provided with a clamping groove for limiting the rotation of the first hinge part.

10. The skin grafting apparatus for deep wound treatment according to claim 1, wherein said forceps head and said forceps handle are integrally formed.