Auxiliary tool for MEEK skin grafting

Abstract

The utility model relates to the field of medical skin grafting materials, in particular to an auxiliary tool for MEEK skin grafting, which comprises a water-absorbing sponge in the shape of a square block and used for bearing a skin graft to be cut and to be grafted; the folding sheet comprises a gauze layer and an aluminum foil layer which are stacked together, a plurality of transverse wrinkles and longitudinal wrinkles are arranged on the folding sheet, and a skin carrying sheet area consistent with the water absorption sponge in length and width is arranged between the transverse wrinkles and the longitudinal wrinkles. The biocompatibility is good, the moisturizing performance is good, operation of clinicians is facilitated, and the risk of patients is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical skin grafting materials, in particular to an auxiliary tool for MEEK skin grafting Background Technique

[0002] When the skin of a burn and scald patient is severely damaged, autologous skin transplantation is required to promote wound healing. However, due to the limited source of autologous skin, it usually needs to be expanded to meet the transplantation needs of large-area wounds. The auxiliary tools in MEEK skin grafting generally include a folding piece and a cork disk; among them, the folding piece is used to carry and fix the skin piece to ensure that the skin piece can correctly cover the wound and promote skin healing; the cork disk is used to assist in cutting and transferring the skin piece.

[0003] In clinical operation, the cork disk is immersed in water to be wetted, the taken skin piece is placed on the disk with the dermal side facing down, and then placed in a skin roller for cutting. The autologous skin piece is divided into 196 micro skin pieces of 3mm×3mm, and then the skin pieces are separated at equal distances through the expansion of the carrier sheet and transplanted onto the wound surface.

[0004] However, since the cork disk is made of wood material, its biocompatibility is poor and its moisture retention performance is poor; moreover, cutting is laborious in clinical operation, increasing the risk to patients. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide an auxiliary tool for MEEK skin grafting with good biocompatibility, good moisture retention performance, convenient for clinical doctors to operate, and reducing the risk to patients.

[0006] To solve the above problems, the technical solution adopted by the utility model is:

[0007] An auxiliary tool for MEEK skin grafting, which includes:

[0008] A water-absorbing sponge, which is in a square block shape and is used to carry the skin piece to be cut for transplantation;

[0009] A folding piece, which includes a gauze layer and an aluminum foil layer stacked together, and is provided with a plurality of transverse folds and longitudinal folds. A skin-carrying area with the same length and width dimensions as the water-absorbing sponge is arranged between the plurality of transverse folds and the plurality of longitudinal folds.

[0010] As an implementation manner of the utility model, the material of the water-absorbing sponge is polyurethane or polyvinyl alcohol.

[0011] As an implementation manner of the utility model, the density of the water-absorbing sponge is 250 kg / m 3 ~350 kg / m 3 .

[0012] As an implementation manner of the utility model, the water absorption rate of the water-absorbing sponge is greater than 100%.

[0013] As an implementation manner of the utility model, the length × width × height of the water-absorbing sponge is 42 mm × 42 mm × 2.6 mm.

[0014] As an implementation manner of the utility model, the expansion ratio of the folding piece is 1:3, 1:4 or 1:6.

[0015] As an implementation manner of the utility model, the transverse folds and the longitudinal folds are evenly distributed, and the distance between adjacent transverse folds and adjacent longitudinal folds is 3 mm.

[0016] As an implementation manner of the utility model, the number of both the transverse folds and the longitudinal folds is 15.

[0017] The beneficial effects produced by adopting the above technical solution are as follows:

[0018] The auxiliary tool in the MEEK skin grafting provided by the utility model has a water-absorbing sponge with good biocompatibility, good moisture retention performance, reliable stability, and convenient transportation. In addition, when cutting with a skin rolling machine after placing the skin graft to be cut on it, it saves time and effort, facilitates the operation of medical staff, and reduces the risk to patients; in addition, by setting the folding piece, the cut skin graft can be transferred to the folding piece for expanded transplantation, and the usage method is easy to operate, having a broad market prospect. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of an auxiliary tool in a MEEK skin grafting provided by an embodiment of the utility model.

[0020] Figure 2 It is a schematic plan view of a folding piece in a folded state provided by an embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of a folding piece with transverse folds unfolded provided by an embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of a folding piece fully unfolded provided by an embodiment of the utility model.

[0023] Figure 5 It is a schematic diagram of being applied to a wound surface provided by an embodiment of the utility model.

[0024] Among them: 1 water-absorbing sponge, 2 micro skin graft, 3 folding piece, 4 transverse fold, 5 longitudinal fold, 6 skin graft area. Detailed Embodiment

[0025] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following provides a clear and complete description of the utility model in combination with specific embodiments.

[0026] An embodiment of the present utility model provides an auxiliary tool for MEEK skin grafting, as Figure 1 shown, which includes:

[0027] A water-absorbing sponge 1, which is in the shape of a square block and is used to carry the skin graft to be cut, and after carrying the skin graft to be cut, it can cut the skin graft into several micro skin grafts 2 under the action of a skin rolling machine; the material of the water-absorbing sponge 1 is polyurethane or polyvinyl alcohol, and its length × width × height is 42 mm × 42 mm × 2.6 mm; the density of the water-absorbing sponge 1 is 250 kg / m 3 ~350 kg / m 3 ; the water absorption rate of the water-absorbing sponge 1 is greater than 100%;

[0028] A folding piece 3, as shown in 2- Figure 4 shown, which includes a gauze layer and an aluminum foil layer stacked together, and is provided with several transverse folds 4 and longitudinal folds 5, and a skin-carrying area 6 with the same length and width as the water-absorbing sponge 1 is arranged between the several transverse folds 4 and the several longitudinal folds 5.

[0029] For example: if the length × width of the water-absorbing sponge 1 is 42 mm × 42 mm, then the length × width of the skin-carrying area 6 is also 42 mm × 42 mm; as Figure 2 shown, the skin-carrying area 6 is a closed square in the middle surrounded by two longitudinal folds 5 at the left and right ends and two transverse folds 4 at the upper and lower ends.

[0030] During use, soak the water-absorbing sponge 1 in physiological saline for 5 minutes and then take it out. Attach the dermis layer of the skin graft to be transplanted (for example: pig skin) to the upper surface of the water-absorbing sponge 1. Then cut the skin graft so that the edge of the skin graft does not exceed the edge of the sponge piece. Place the sponge piece with the attached skin graft in a skin rolling machine for transverse and longitudinal cutting to cut the skin graft into micro skin grafts 2 of 3 mm × 3 mm. Then spray the applicable glue on the skin grafts, place the entire epidermis layer of the skin graft to be transplanted downward and paste it on the skin-carrying area 6, with the dermis layer facing upward, and the micro skin grafts 2 corresponding to the skin-carrying area 6; then pull and flatten the transverse folds 4 and longitudinal folds 5 so that the micro skin grafts 2 are separated from each other; finally, remove the aluminum foil layer and place the gauze layer with the attached micro skin grafts 2 at the skin grafting site, as Figure 5 shown.

[0031] The auxiliary tool in the MEEK skin grafting provided by the present utility model has the following advantages: the water-absorbing sponge 1 has good biocompatibility, good moisture retention performance, reliable stability, and convenient transportation. In addition, when the skin graft to be cut is placed on it and cut by a skin rolling machine, it saves time and effort, facilitates the operation of medical staff, and reduces the risk to patients. In addition, by setting the folding piece 3, the cut skin graft can be transferred to the folding piece 3 for extended transplantation. The usage method is easy to operate, and it has a broad market prospect.

[0032] In the embodiment of the present utility model, both the transverse folds 4 and the longitudinal folds 5 are 15 in number. As Figure 2 shown, the distance B1 between adjacent transverse folds 4 and the distance B2 between adjacent longitudinal folds 5 are both 3 mm. In this case, after folding, the total width between the transverse folds 4 and the longitudinal folds 5 is 14×3 = 42 mm, so as to ensure that the length×width of the skin-loading area 6 is 42 mm×42 mm, which is adapted to the size of the water-absorbing sponge 1.

[0033] Furthermore, the edge of the transverse fold 43 or the longitudinal fold 54 is serrated, and this serration is used to mark the direction of prior stretching. As Figure 2 shown, in the embodiment of the present utility model, the edge of the longitudinal fold 5 is serrated, which is used to mark that when in use, the longitudinal direction is stretched first, the transverse fold 4 is unfolded, and then the longitudinal fold 5 is unfolded.

[0034] In addition, the unfolded size can also be changed by controlling the folding length of each fold. In one possible implementation, the expansion ratio of the folding piece 3 can be 1:3, 1:4 or 1:6. When it is 1:3, the length before unfolding is 42 mm, and the length after unfolding is 73 mm.

Claims

1. An auxiliary tool for MEEK skin grafting, characterized in that It includes: A water-absorbing sponge, which is in the shape of a square block and is used to carry the skin graft to be cut. A folding sheet, which includes a gauze layer and an aluminum foil layer stacked together, and is provided with a number of transverse folds and longitudinal folds. A skin-carrying area having the same length and width dimensions as the water-absorbing sponge is provided between the number of transverse folds and the number of longitudinal folds.

2. The auxiliary tool for MEEK skin grafting according to claim 1, characterized in that The material of the water-absorbing sponge is polyurethane or polyvinyl alcohol.

3. An auxiliary tool for MEEK skin grafting according to claim 2, characterized in that The density of the water-absorbing sponge is 250 kg / m 3 ~350 kg / m 3 .

4. An auxiliary tool for MEEK skin grafting according to claim 1, characterized in that, The water absorption rate of the water-absorbing sponge is greater than 100%.

5. An auxiliary tool for MEEK skin grafting according to claim 1, characterized in that The length × width × height of the water-absorbing sponge is 42 mm × 42 mm × 2.6 mm.

6. The auxiliary tool for MEEK skin grafting according to claim 1, characterized in that The expansion ratio of the folding sheet is 1:3, 1:4 or 1:

6.

7. An auxiliary tool for MEEK skin grafting according to claim 1, characterized in that The transverse folds and the longitudinal folds are evenly distributed, and the distance between adjacent transverse folds and adjacent longitudinal folds is 3 mm.

8. An auxiliary tool for MEEK skin grafting according to claim 1, characterized in that, Both the transverse folds and the longitudinal folds are 15 in number.

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