A hook-type skin stretching and closing device

Abstract

The present invention provides a hook-type skin stretching and closure device, comprising an adjustment assembly and a fixed hook device, the adjustment assembly comprising a threaded rod, a pressure-adjusting member, a pressure-adjusting spring, a sliding sleeve, and a fixing nut, the fixing hook device comprising a fixed hook body and multiple hooks disposed on the fixed hook body, the fixed hook body having a circular hole transversely disposed on its upper portion, the fixing nut and the pressure-adjusting member being screwed onto the ends of the threaded rod, the pressure-adjusting spring and the sliding sleeve being sequentially sleeved on the threaded rod, the pressure-adjusting member, the pressure-adjusting spring, and the sliding sleeve being sequentially pushed together, an inner sleeve and an outer sleeve being sleeved together on the threaded rod between the sliding sleeve and the fixing nut, the two fixed hook devices being slidably sleeved on the inner sleeve through the circular hole and axially pushing together with the outer sleeve and the fixing nut, the outer sleeve being pushed together with the sliding sleeve; alternatively, the inner sleeve may be omitted and a bare rod section may be disposed in the middle of the threaded rod, thereby ensuring that the fixed hook device will not become stuck when sliding.

Description

Technical Field

[0001] The present invention relates to the technical field of trauma surgery instruments, and in particular to a hook-row type skin stretching and closing device. Background Art

[0002] Skin defects caused by trauma are common clinically and often require repair with skin grafts or flaps. However, these methods can damage the patient's other donor sites. Skin stretching is an effective treatment for skin defects. It applies continuous mechanical tension to the skin soft tissue, promoting tissue and cell division, proliferation, growth, increasing intercellular spaces, and enhancing inherent elasticity, thereby creating "extra" intact skin soft tissue for wound closure. Skin stretching offers the advantages of rapid wound closure, simple operation, and minimal complications. It is a method for biologically repairing soft tissue defects and requires the assistance of a special traction device (i.e., a skin stretch closure device).

[0003] Chinese patent application publication number CN104826219A discloses an elastic skin dilator, also known as a skin traction system and a hook rod fixation system, comprising an adjustment assembly and a fixed hook device. The adjustment assembly comprises a threaded rod, a fixed wheel nut, a pressure-adjusting member, a pressure-adjusting spring, a sliding sleeve, and a fixed nut. The threaded rod is cylindrical and has external threads. The fixed wheel nut and the pressure-adjusting member are threadedly connected to the threaded rod. The fixed nut is disposed at the other end of the threaded rod. The fixed hook device comprises a fixed hook body and multiple hooks disposed on the fixed hook body. Two circular holes are disposed transversely on the upper portion of the fixed hook body. During use, two fixed hook devices are respectively installed on the threaded rods of two sets of adjustment members. The multiple hooks are arranged opposite each other, with one fixed hook device pressing against the fixed nut while the other fixed hook device slides toward the fixed nut under the push of the pressure-adjusting member, pressure-adjusting spring, and sliding sleeve of the two adjustment members. During use, this device can easily become blocked by the external threads of the threaded rod, preventing normal adjustment and advancement, which is very inconvenient. Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] The object of the present invention is to provide a hook-type skin stretching and closing device to solve the technical problem that the fixing hook device of the existing skin expander is easily blocked and stuck with the external thread of the threaded rod when sliding.

[0006] (2) Technical solution

[0007] The technical solution of the hook-type skin stretching and closing device of the present invention is realized as follows: the hook-type skin stretching and closing device comprises an adjusting component and a fixing hook device, the adjusting component comprises a threaded rod, a pressure-adjusting component, a pressure-adjusting spring, a sliding sleeve and a fixing nut, the fixing hook device comprises a fixing hook body and multiple hooks arranged on the fixing hook body, a circular hole is transversely provided on the upper part of the fixing hook body, the fixing nut and the pressure-adjusting component are respectively screwed on the two ends of the threaded rod through threads, the pressure-adjusting spring and the sliding sleeve are sequentially sleeved on the threaded rod, the pressure-adjusting component, the pressure-adjusting spring and the sliding sleeve are sequentially pushed and matched, the pressure-adjusting component comprises a nut section and a sleeve section, the nut section is provided with an internal thread, the pressure-adjusting spring is arranged in the sleeve section and pushes and matches with the inner end surface of the nut section, the threaded rod between the sliding sleeve and the fixing nut is sleeved with an inner sleeve and an outer sleeve which are sleeved with each other, the two fixing hook devices are slidably sleeved on the inner sleeve through the circular hole and push and match with the outer sleeve and the fixing nut respectively along the axial direction, and the outer sleeve pushes and matches with the sliding sleeve.

[0008] As a further improvement of the present invention, the inner sleeve is integrated with the threaded rod and slidingly cooperates with the fixing hook device, and the inner sleeve is not provided.

[0009] As a further improvement of the present invention, one end of the threaded rod is set as a smooth rod, which is slidably matched with the fixing hook device and no inner sleeve is provided.

[0010] As a further improvement of the present invention, a fixing nut is not provided, and a head end with an increased diameter is provided at one end of the threaded rod. The diameter of the head end is larger than the diameter of the circular hole provided in the fixing hook device and is used to block the fixing hook device.

[0011] As a further improvement of the present invention, the pressure-regulating member includes a pressure-regulating member and a sliding sleeve. The pressure-regulating member includes a nut section and a sleeve section. The nut section is internally threaded. The pressure-regulating spring is disposed within the sleeve section and pushes against the inner end surface of the nut section. The outer diameter of the sliding sleeve is no larger than the inner diameter of the sleeve section of the pressure-regulating member. A pressure-regulating spring pressure scale is provided on the outer wall of the sliding sleeve to indicate the pressure of the pressure-regulating spring.

[0012] As a further improvement of the present invention, the sliding sleeve is integrally provided with the outer sleeve, which can save processing procedures for parts and reduce the number of parts.

[0013] As a further improvement of the present invention, the circular hole is located in the middle of the fixed hook body, and two guide holes are symmetrically provided on the fixed hook body along the transverse direction of the circular hole. The hook-row skin stretching and closure device also includes a guide rod that is inserted into the guide holes on the same side of the two fixed hook bodies. The guide rod slides in engagement with the guide holes, and the fixed hook body is further provided with a set screw that radially secures the guide rod. This method allows for advancement adjustment using only one adjustment assembly, and the guide rod prevents rotation.

[0014] As a further improvement of the present invention, there are two circular holes, which are symmetrically arranged along the transverse direction of the fixing hook body. The two fixing hook devices are adjusted by two sets of adjustment components, and the two sets of adjustment components are used to avoid deflection.

[0015] By adopting the above technical solution, the beneficial effects of the hook-type skin stretching and closing device of the present invention are as follows: by providing the inner sleeve, the fixing hook device does not need to contact the thread of the threaded rod, thereby avoiding the hole edge of the circular hole of the fixing hook device and the thread being stuck, and the surface of the inner sleeve is relatively smooth, and the resistance of the fixing hook device during sliding is also significantly reduced, and the sliding is smoother. At the same time, the setting of the inner sleeve will not affect the threaded connection between the fixing nut and the pressure-adjusting component and the threaded rod; the setting of the outer sleeve is to facilitate the smooth transmission of the thrust of the pressure-adjusting component and the sliding sleeve to the fixing hook device.

[0016] The technical solution of the hook-type skin stretching and closing device of the present invention is achieved as follows: the hook-type skin stretching and closing device includes an adjusting component and a fixed hook device, the adjusting component includes a threaded rod, a pressure-adjusting component, a pressure-adjusting spring, a sliding sleeve and a fixing nut, the fixing hook device includes a fixed hook body and multiple hooks arranged on the fixed hook body, a circular hole is transversely provided on the upper part of the fixed hook body, the fixing nut and the pressure-adjusting component are respectively screwed on the two ends of the threaded rod through threads, the pressure-adjusting spring and the sliding sleeve are sequentially sleeved on the threaded rod, the pressure-adjusting component, the pressure-adjusting spring and the sliding sleeve are pushed and matched in sequence, the threaded rod includes threaded sections at both ends and a smooth rod section in the middle, the threaded rod is also sleeved with a pushing sleeve, the pushing sleeve is pushed and matched with the sliding sleeve, the two fixing hook devices are slidably sleeved on the smooth rod section through the circular hole and are respectively pushed and matched with the pushing sleeve and the fixing nut along the axial direction.

[0017] As a further improvement of the present invention, the sliding sleeve and the pushing sleeve are integrally provided.

[0018] As a further improvement of the present invention, the pressure regulating component includes a nut section and a sleeve section, the nut section is provided with an internal thread, the pressure regulating spring is arranged in the sleeve section and is pushed together with the inner end surface of the nut section, and the outer diameter of the sliding sleeve is not larger than the inner diameter of the sleeve section.

[0019] As a further improvement of the present invention, there are two circular holes, which are symmetrically arranged along the transverse direction of the fixing hook body, and the two fixing hook devices are adjusted by two sets of adjustment components. Adjustment by the two sets of adjustment components prevents rotation.

[0020] By adopting the above technical scheme, the beneficial effects of the hook-type skin stretching and closing device of the present invention are as follows: by arranging a light rod section in the middle of the threaded rod corresponding to the active area of ​​the fixing hook device, the fixing hook device does not need to contact the thread of the threaded rod, but slides with the light rod section, avoiding the hole edge of the circular hole of the fixing hook device and the thread being stuck. In addition, since the surface of the light rod section is relatively smooth, the resistance of the fixing hook device during sliding is also significantly reduced, and the sliding is smoother. At the same time, the arrangement of the light rod section will not affect the threaded connection between the fixing nut and the pressure regulating component and the threaded rod; the arrangement of the push sleeve is to facilitate the smooth transmission of the thrust of the sliding sleeve to the fixing hook device; an inner sleeve, an outer sleeve or a part of the threaded rod is added to the outside of the threaded rod and is set as a light rod, the row hook can slide along the sleeve without resistance, the stretching and closing wound can be completely closed, the skin stretching force is accurate, and skin necrosis is not easy to occur, etc., avoiding the disadvantages of the original hook-type skin stretcher that is easy to get stuck between the row hook and the threaded rod, the row hook cannot move forward under pressure regulation, the skin stretching force is inconsistent with the force displayed by the scale sleeve, and the skin stretching force cannot be accurately measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of a specific embodiment 1 of the hook-type skin stretching and closing device of the present invention;

[0023] Figure 2 for Figure 1 sectional view of

[0024] Figure 3 This is a schematic structural diagram of a specific embodiment 2 of the hook-type skin stretching and closing device of the present invention;

[0025] Figure 4 for Figure 3 A schematic structural diagram of the fixing hook device;

[0026] Figure 5 This is a schematic structural diagram of a specific embodiment 3 of the hook-type skin stretching and closing device of the present invention;

[0027] Figure 6 for Figure 5 sectional view of

[0028] Figure 7 for Figure 5 A schematic structural diagram of the fixing hook device;

[0029] Figure 8 This is a schematic structural diagram of a specific embodiment 4 of the hook-type skin stretching and closing device of the present invention;

[0030] Figure 9 Schematic diagram of the partial structure of the specific embodiment 5 of the hook-type skin stretching and closing device of the present invention;

[0031] Among them: 1-adjusting assembly, 11-threaded rod, 12-pressure regulating member, 121-nut section, 122-sleeve section, 13-pressure regulating spring, 14-sliding sleeve, 15-inner sleeve, 16-outer sleeve, 18-fixing nut, 2-fixing hook device, 21-fixing hook body, 211-round hole, 212-guide hole, 22-multiple hooks, 23-fixing screw, 3-guide rod, L-thread, 111-light rod section, 17-thrust sleeve. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Specific embodiment 1 of the hook-type skin stretching and closing device of the present invention: Figure 1-2 As shown, the hook-type skin stretching and closing device includes an adjusting component 1 and a fixing hook device 2. The adjusting component 1 includes a threaded rod 11, a pressure-adjusting member 12, a pressure-adjusting spring 13, a sliding sleeve 14 and a fixing nut 18. The fixing hook device 2 includes a fixing hook body 21 and multiple hooks 22 arranged on the fixing hook body 21. A circular hole 211 is horizontally provided on the upper part of the fixing hook body 21. The fixing nut 18 and the pressure-adjusting member 12 are respectively screwed on the two ends of the threaded rod 11 through threads. The pressure-adjusting spring 13 and the sliding sleeve 14 are sequentially sleeved on the threaded rod 11. The pressure-adjusting member 12, the pressure-adjusting spring 13 and the sliding sleeve 14 are sequentially pushed and matched. The threaded rod 11 between the sliding sleeve 14 and the fixing nut 18 is sleeved with an inner sleeve 15 and an outer sleeve 16 that are sleeved with each other. The two fixing hook devices 2 are slidably sleeved on the inner sleeve 15 through the circular hole 211 and are respectively pushed and matched with the outer sleeve 16 and the fixing nut 18 along the axial direction. The outer sleeve 16 is pushed and matched with the sliding sleeve.

[0034] In this embodiment, the pressure-regulating member 12 includes a nut section 121 and a sleeve section 122. The nut section 121 is internally threaded. The pressure-regulating spring 13 is disposed within the sleeve section 122 and pushes against the inner end surface of the nut section 121. The outer diameter of the sliding sleeve is no larger than the inner diameter of the sleeve section 122, thereby guiding the pressure-regulating spring 13.

[0035] In this embodiment, there are two circular holes 211, which are symmetrically arranged along the transverse direction of the fixing hook body 21. The two fixing hook devices 2 are adjusted by two sets of adjustment components 1. Adjustment by the two sets of adjustment components 1 prevents rotation.

[0036] In this embodiment, a spring pressure scale is provided on the outside of the sliding sleeve 14 for displaying the spring pressure.

[0037] During use: unscrew the fixing nuts 18 of the two assembled adjustment components 1, pass the two fixing hook devices 2 through their two round holes 211 and respectively insert them into the inner sleeves 15 of the two adjustment components 1, and make the tips of the multiple hooks 22 face each other, install the fixing nuts 18 on the corresponding threaded rods 11 respectively, and insert the multiple hooks 22 into the edge skin of the skin defect, and then adjust the pressure adjusting components 12 of the two adjustment components 1 at the same time, so that one fixing hook device 2 approaches the other fixing hook device 2, exerting traction on the skin to promote skin healing. By providing the inner sleeve 15, the fixing hook device 2 does not need to contact the threads of the threaded rod 11, thereby avoiding the hole edge of the circular hole 211 of the fixing hook device 2 from being stuck with the threads. Moreover, the surface of the inner sleeve 15 is relatively smooth, and the resistance of the fixing hook device 2 during sliding is also significantly reduced, and the sliding is smoother. At the same time, the provision of the inner sleeve 15 will not affect the threaded connection between the fixing nut 18 and the pressure regulating member 12 and the threaded rod 11; the provision of the outer sleeve 16 is to facilitate the smooth transmission of the thrust of the sliding sleeve to the fixing hook device 2.

[0038] Specific embodiment 2 of the hook-type skin stretching and closing device of the present invention: Figure 3-4 As shown, the difference from Example 1 is that the circular hole 211 is arranged in the middle of the fixed hook body 21, and two guide holes 212 are symmetrically arranged on the fixed hook body 21 along the horizontal sides of the circular hole 211. The hook-type skin stretching and closing device also includes a guide rod 3 that is inserted into the guide holes 212 on the same side of the two fixed hook bodies at the same time. The guide rod 3 slides with the guide hole 212. A radial screw hole is provided at the guide hole 212 on the fixed hook body 21 of the fixed hook device 2 on the side close to the fixing nut 18. The screw hole penetrates into the guide hole 212 along the radial direction of the guide hole 212. A set screw for radially fixing the guide rod 3 is also provided on the fixed hook body 21. The set screw fixes the guide rod 3 in the guide hole 212 by being screwed into the screw hole and penetrated into the guide hole 212. The other side's fixing hook assembly 2 lacks a screw hole or set screw, but is instead slidably mounted on the guide rod 3 and inner sleeve 15. In this embodiment, tension adjustment is achieved with just one adjustment assembly 1, and deflection is prevented by the action of the guide rod 3. During use, only one adjustment assembly 1 needs to be adjusted to achieve distance adjustment, and the two guide rods 3 prevent deflection of the two fixing hook assemblies 2.

[0039] In other embodiments, the inner sleeve 15 is integrally arranged with the threaded rod 11. This arrangement does not require disassembling the inner sleeve 15 each time the inner sleeve 15 is disassembled, and the integral arrangement does not affect the installation and disassembly of other components.

[0040] In other embodiments, the sliding sleeve is integrally provided with the outer sleeve 16. Such an arrangement can save the processing procedures of parts and components and reduce the number of parts and components.

[0041] Specific embodiment 3 of the hook-type skin stretching and closing device of the present invention: Figure 5-7 As shown, the hook-type skin stretching and closing device includes an adjusting component 1 and a fixing hook device 2. The adjusting component 1 includes a threaded rod 11, a pressure-adjusting member 12, a pressure-adjusting spring 13, a sliding sleeve and a fixing nut 18. The fixing hook device 2 includes a fixing hook body 21 and multiple hooks 22 arranged on the fixing hook body 21. A circular hole 211 is horizontally provided on the upper part of the fixing hook body 21. The fixing nut 18 and the pressure-adjusting member 12 are respectively screwed on the two ends of the threaded rod 11 through threads. The pressure-adjusting spring 13 and the sliding sleeve are sequentially sleeved on the threaded rod 11. The pressure-adjusting member 12, the pressure-adjusting spring 13 and the sliding sleeve are sequentially pushed and matched. The threaded rod 11 includes threaded sections at both ends and a smooth rod section 111 in the middle. A pushing sleeve 17 is also sleeved on the threaded rod 11. The pushing sleeve 17 is pushed and matched with the sliding sleeve. The two fixing hook devices 2 are slidably sleeved on the smooth rod section 111 through the circular hole 211 and are respectively pushed and matched with the pushing sleeve 17 and the fixing nut 18 along the axial direction.

[0042] In this embodiment, the pressure regulating component 12 includes a nut section 121 and a sleeve section 122. The nut section 121 is provided with an internal thread. The pressure regulating spring 13 is arranged in the sleeve section 122 and is pushed and matched with the inner end surface of the nut section 121. The outer diameter of the sliding sleeve is not larger than the inner diameter of the sleeve section 122.

[0043] In this embodiment, there are two circular holes 211, which are symmetrically arranged along the transverse direction of the fixing hook body 21. The two fixing hook devices 2 are adjusted by two sets of adjustment components 1. Adjustment by the two sets of adjustment components 1 can avoid deflection.

[0044] During use: unscrew the fixing nuts 18 of the two assembled adjustment components 1, pass the two fixing hook devices 2 through their two round holes 211 and respectively insert them into the bare rod sections 111 of the two adjustment components 1, and set the tips of the multiple hooks 22 relative to each other, install the fixing nuts 18 on the corresponding threaded rods 11 respectively, and insert the multiple hooks 22 into the edge skin of the skin defect, and then adjust the pressure adjusting components 12 of the two adjustment components 1 at the same time, so that one fixing hook device 2 approaches the other fixing hook device 2, exerting traction on the skin to promote skin healing. By setting a polished rod section 111 in the middle of the threaded rod 11 corresponding to the active area of ​​the fixing hook device 2, the fixing hook device 2 does not need to contact the thread of the threaded rod 11, but slides with the polished rod section 111, avoiding the hole edge of the circular hole 211 of the fixing hook device 2 from being stuck with the thread. In addition, since the surface of the polished rod section 111 is relatively smooth, the resistance of the fixing hook device 2 during sliding is also significantly reduced, and the sliding is smoother. At the same time, the setting of the polished rod section 111 will not affect the threaded connection between the fixing nut 18 and the pressure regulating component 12 and the threaded rod 11; the setting of the push sleeve 17 is to facilitate the smooth transmission of the thrust of the sliding sleeve to the fixing hook device 2.

[0045] Specific embodiment 4 of the hook-type skin stretching and closing device of the present invention: Figure 8 As shown, the difference from Example 1 is that the sleeve section 122 of the pressure regulating member 12 is not a complete cylinder, but has a notch, or in other words, the sleeve section 122 includes two parts, one part is a ring, and the other part is a tile-like structure, and the tile-like structure forms a pointer for indicating the scale.

[0046] Specific embodiment 5 of the hook-type skin stretching and closing device of the present invention: Figure 9 As shown, the difference from Example 1 is that the outer diameter of the sleeve section 122 of the pressure-regulating component 12 is smaller than the inner diameter of the sliding sleeve 14, the pressure-regulating spring 13 is located in the annular space surrounded by the sliding sleeve 14 and the threaded rod 11, and the other end of the sliding sleeve 14 has a closing structure, the inner diameter of the inner hole of the closing structure is slightly larger than the outer diameter of the threaded rod 11, one end of the pressure-regulating spring 13 presses on the inner end surface of the closing structure, and the other end presses on the end of the sleeve section 122.

[0047] In other embodiments, the sliding sleeve and the thrust sleeve 17 are integrally provided.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hook-type skin stretching and closing device, comprising an adjusting assembly and a fixed hook device, wherein the adjusting assembly comprises a threaded rod, a pressure-adjusting member, a pressure-adjusting spring, a sliding sleeve and a fixing nut, wherein the fixing hook device comprises a fixed hook body and multiple hooks arranged on the fixed hook body, wherein a circular hole is transversely arranged on the upper portion of the fixed hook body, wherein the fixing nut and the pressure-adjusting member are respectively screwed onto the two ends of the threaded rod through threads, wherein the pressure-adjusting spring and the sliding sleeve are sequentially sleeved on the threaded rod, wherein the pressure-adjusting member, the pressure-adjusting spring and the sliding sleeve are sequentially pushed together, and wherein the fixing hook device comprises a fixed hook body and multiple hooks arranged on the fixed hook body, wherein the fixed hook body has a circular hole ... fixed nut and the pressure-adjusting member are screwed onto the two ends of the threaded rod through threads, wherein the pressure-adjusting member, the pressure-adjusting spring and the sliding sleeve are sequentially pushed together, and wherein the fixing hook device comprises a fixed hook body and a plurality of hooks arranged on the fixed hook body, wherein the fixed hook body has a circular hole transversely arranged on the upper portion of the fixed hook body, wherein the fixed nut and the pressure-adjusting member The threaded rod between the sliding sleeve and the fixing nut is sleeved with an inner sleeve and an outer sleeve which are sleeved with each other. The two fixing hook devices are slidably sleeved on the inner sleeve through the circular hole and are respectively pushed and matched with the outer sleeve and the fixing nut in the axial direction. The outer sleeve is pushed and matched with the sliding sleeve. The inner sleeve is integrally arranged with the threaded rod, and the surface of the inner sleeve is smooth.

2. The hook-type skin stretching and closing device according to claim 1, characterized in that: The pressure regulating component includes a nut section and a sleeve section. The nut section is provided with an internal thread. The pressure regulating spring is arranged in the sleeve section and pushes together with the inner end surface of the nut section. The outer diameter of the sliding sleeve is not larger than the inner diameter of the sleeve section.

3. The hook-type skin stretching and closing device according to claim 1, characterized in that: The sliding sleeve is integrally provided with the outer sleeve.

4. The hook-type skin stretching and closing device according to claim 1, characterized in that: The circular hole is arranged in the middle of the fixed hook body, and two guide holes are symmetrically arranged on both sides of the circular hole on the fixed hook body. The hook-type skin stretching and closing device also includes a guide rod that is simultaneously inserted into the guide holes on the same side of the two fixed hook bodies. The guide rod is slidably fitted with the guide hole, and a fixing screw is also provided on the fixed hook body for radially fixing the guide rod.

5. The hook-type skin stretching and closing device according to claim 1, characterized in that: There are two circular holes, which are symmetrically arranged along the transverse direction of the fixing hook body. The two fixing hook devices are adjusted by two sets of adjustment components.

6. A hook-type skin stretching and closing device, comprising an adjusting assembly and a fixed hook device, wherein the adjusting assembly comprises a threaded rod, a pressure-adjusting member, a pressure-adjusting spring, a sliding sleeve and a fixing nut, and the fixing hook device comprises a fixed hook body and multiple hooks arranged on the fixed hook body, wherein a circular hole is transversely arranged on the upper portion of the fixed hook body, and the fixing nut and the pressure-adjusting member are respectively screwed on the two ends of the threaded rod through threads, and the pressure-adjusting spring and the sliding sleeve are sequentially sleeved on the threaded rod, and the pressure-adjusting member, the pressure-adjusting spring and the sliding sleeve are sequentially pushed together, characterized in that: The threaded rod includes threaded sections at both ends and a polished rod section in the middle. A push sleeve is also provided on the threaded rod, and the push sleeve is pushed together with the sliding sleeve. Two fixing hook devices are slidably mounted on the polished rod section through the circular hole and are pushed together with the push sleeve and the fixing nut in the axial direction respectively. There are two circular holes, and the two circular holes are symmetrically arranged along the transverse direction of the fixing hook body. The two fixing hook devices are adjusted by two sets of adjustment components. The pressure regulating component includes a sleeve section, and the sleeve section includes two parts, one part is a circular ring, and the other part is a tile-like structure. The tile-like structure forms a pointer for indicating the scale.

7. The hook-type skin stretching and closing device according to claim 6, characterized in that: The sliding sleeve is integrally arranged with the pushing sleeve.

8. The hook-type skin stretching and closing device according to claim 6 or 7, characterized in that: The pressure regulating component also includes a nut section with an internal thread. The pressure regulating spring is arranged in the sleeve section and pushes together with the inner end surface of the nut section. The outer diameter of the sliding sleeve is not larger than the inner diameter of the sleeve section.

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