Tension-measurable skin stretch closure device

Abstract

The present invention provides a tension-measurable skin stretch closure device, comprising: a fixing component, which is arranged on both sides of a skin wound and is respectively connected to the skin on both sides of the skin wound; a pulling component, comprising a pull rod or a pull strip provided with a tooth groove and a buckle fixedly connected to the fixing component on one side, the pull rod or the pull strip passes through the fixing component on one side of the skin wound and the buckle on the other side of the skin wound, the pull rod or the pull strip movably cooperates with the buckle, and in the process of pulling the pull rod or the pull strip, the pull rod or the pull strip drives the fixing components on both sides to move, so that the skin on both sides of the skin wound is stretched; a tension testing component, comprising an elastic part and an indicator part, the elastic part is arranged between the end plate of the pull rod or the pull strip and the fixing component, the indicator part is provided with a probe parallel to the elastic part, and a scale line is provided on the fixing component, and in the process of pulling the pull rod or the pull strip, the elastic part is elastically deformed by the extrusion force, the probe is displaced by the deformation length of the elastic part and points to the scale line on the fixing component.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instruments that can be clinically applied in trauma surgery, orthopedics and plastic surgery, and in particular to a tension-measurable skin stretch closure device. Background Art

[0002] Skin defects are a challenging problem that surgeons frequently face in clinical practice. Common causes of skin defects include tumors, scars, trauma, inflammation, and intrinsic skin lesions. Larger skin defects cannot be closed directly with sutures. Currently, the main treatments for skin defects in China and abroad include skin grafts, flap transplants, artificial skin, skin expansion, and skin stretching. The most common treatments, flap transplants or skin expansion, are complex and often associated with high rates of complications.

[0003] Skin stretching and expansion uses a skin stretching closure device and takes advantage of the skin's extensibility and looseness to stretch the normal skin on both sides of the skin defect under external force, gradually reducing or bringing the wound edges closer together, achieving stress relaxation of the skin to obtain "extra" skin and reduce or close the wound. It has the characteristics of no need for skin grafting, rapid wound closure, and reduced complications, and is becoming a new treatment method for skin defects.

[0004] Skin stretch closure devices can be categorized as invasive or non-invasive, depending on whether they penetrate the skin. Invasive devices typically use Kirschner wires, steel needles, skin staples, sutures, steel wires, elastic bands, or rubber bands to insert and secure the device within the skin. Non-invasive devices, on the other hand, use adhesive tape to adhere the device to the skin surface for securement. Existing skin stretch closure devices currently in clinical use or in the development stage have the following shortcomings: 1. Their structures are overly complex, making installation cumbersome and time-consuming, increasing the burden on medical personnel; 2. Their pulling force is insufficient or excessive, making it difficult to effectively adjust the tension locally to meet the needs of different wound sites; 3. They are often unidirectional, making it impossible or difficult to retract the device if it is too tight; 4. Their cross-sections are often flat, making them unsuitable for non-planar or irregular wounds; 5. Their bulky size makes it difficult for patients who cannot maintain a short-term stretch closure on the operating table and require prolonged wear to ambulate after surgery; and 6. Their high cost places a heavy financial burden on patients.

[0005] Some recent skin stretch closure devices attempt to address one or more of the above shortcomings. For example, based on extensive prior research, the applicant has designed and published patents with authorization numbers CN216317770U, entitled "Hook-type Pull-rod Skin Stretching Closure," CN216221545U, entitled "Flexible Skin Stretching Closure," CN216257268U, entitled "Bidirectional Hook-type Skin Stretching Closure," and CN216060622U, entitled "Hook-type Pull-rod Skin Stretching Closure." These devices feature simple structures, adjustable tension, retractable when tightened, and adaptable to non-planar or irregular wound surfaces. They are also compact, easy to use, and inexpensive, essentially overcoming the aforementioned shortcomings. However, determining whether the tension is insufficient or excessive depends entirely on the clinician's clinical experience, and the stretch closure devices lack a device for accurately measuring or indicating tension. If the doctor lacks clinical experience, excessive stretching force may be used, resulting in complications such as tension blisters, or if the stretching force is too small, the stretching will be slow and the stretching time required for wound closure will be prolonged, thus affecting the surgical turnover rate and the patient's recovery speed. Summary of the Invention

[0006] In view of the problems existing in the background technology, the purpose of the present invention is to provide a tension-measurable skin stretch closure device, which can regulate the stretching force within an appropriate range.

[0007] In order to achieve the above-mentioned objectives, the present invention provides a tension-measurable skin stretch closure device, comprising: a fixing component, which is arranged on both sides of the skin wound and is respectively connected to the skin on both sides of the skin wound; a pulling component, comprising a pull rod or a pull strip provided with a tooth groove and a buckle fixedly connected to the fixing component on one side, the pull rod or the pull strip passes through the fixing component on one side of the skin wound and the buckle on the other side of the skin wound, the pull rod or the pull strip and the buckle movably cooperate, and in the process of pulling the pull rod or the pull strip, the pull rod or the pull strip drives the fixing components on both sides to move, so that the skin on both sides of the skin wound is stretched; a tension testing component, comprising an elastic part and an indicator part, the elastic part is arranged between the end plate of the pull rod or the pull strip and the fixing component on one side, the indicator part is provided with a probe parallel to the elastic part, and a scale line is provided on the fixing component, and in the process of pulling the pull rod or the pull strip, the elastic part is elastically deformed by the extrusion force, the probe is displaced by the deformation length of the elastic part and points to the scale line on the fixing component.

[0008] Optionally, the elastic member is one of a spring, an elastomer, and a spring.

[0009] Optionally, the elastic member is sleeved on the pull rod or the pull strip.

[0010] Optionally, the elastic member is arranged on the outside of the pull rod or the pull strip.

[0011] Optionally, the indicator is fixedly connected to the end plate of the pull rod or the pull bar.

[0012] Optionally, the indicator is provided with a through hole, is arranged between the elastic member and the end plate of the pull rod or the pull strip, and is sleeved on the pull rod or the pull strip.

[0013] Optionally, the probe is structured as a thin rod or a sleeve.

[0014] Optionally, the tension test assembly is independently provided, or the indicator is connected to the end plate of the pull rod or the pull bar, or the elastic member is connected to the fixing assembly.

[0015] Optionally, the fixing assembly includes a pair of fixing plates and a tape adhered to the release paper, the pair of fixing plates are arranged on both sides of the skin wound, the ends of the tape are adhered to the surface of the fixing plates, the slot is fixedly connected to one of the pair of fixing plates, the buckle of the pulling assembly is fixedly connected to the other of the pair of fixing plates, the pull strip of the pulling assembly passes through the slot and the buckle, and the pull strip and the buckle are movably cooperated; the elastic member is arranged between the end plate of the pull strip and the slot on one side, the indicator is provided with a probe parallel to the elastic member, and the slot is provided with a scale line. In the process of pulling the pull strip, the elastic member is elastically deformed by the extrusion force, and the probe is displaced by the deformation length of the elastic member and points to the scale line on the slot.

[0016] Optionally, the fixing assembly includes a joint and two groups of crochet hooks, a through hole is provided in the middle of the joint, the pull rod of the pulling assembly passes through the through hole in the middle of the two joints, the two groups of crochet hooks are fixedly connected to the bottom of the two joints, and the bending directions of the two groups of crochet hooks are opposite; the elastic part is provided between the end plate of the pull rod and the joint on one side, the indicator is provided with a probe parallel to the elastic part, and a scale line is provided on the joint. In the process of pulling the pull rod, the elastic part is elastically deformed by the extrusion force, and the probe is displaced by the deformation length of the elastic part and points to the scale line on the joint.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention incorporates a tension testing assembly that measures and displays the applied tension during the stretching process, preventing complications such as tension blisters caused by excessive tension and inefficient stretching due to insufficient tension. The present invention also incorporates a stretching assembly with a reversibly adjustable buckle that facilitates tightening or retracting the pull rod or strap. Combined with the tension testing assembly, the stretching tension can be controlled within an appropriate range.

[0019] The skin stretch closure device of the present invention is very simple to operate, the stretching force can be tested and reversibly adjusted, it can adapt to planar and non-planar irregular wounds, it is small in size, causes little trauma to the skin, does not affect the patient's postoperative activities, and is inexpensive.

[0020] The skin stretch closure device of the present invention has a wide range of clinical indications, saves surgical operation time, can quickly and effectively reduce skin defects, solves the shortcomings of existing market products, can effectively reduce the demand for skin grafting and flap surgery, does not require secondary surgery, and has very good application prospects.

[0021] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0023] Figure 1 A schematic structural diagram of an embodiment of the tension-measurable skin stretch closure device of the present invention is shown.

[0024] Figure 2 FIG2 shows a schematic structural diagram of another embodiment of the tension-measurable skin stretch closure device of the present invention.

[0025] Figure 3 A structural schematic diagram of an embodiment of a tension test assembly is shown, wherein the indicator is fixedly connected to the end plate of the pull rod.

[0026] Figure 4 A structural schematic diagram of an embodiment of a tension test assembly is shown, wherein the indicator is sleeved on a pull rod or a pull bar.

[0027] Figure 5 Shown Figure 4 A variation of the embodiment.

[0028] Figure 6 Shown Figure 4 Another variation of the embodiment.

[0029] Figure 7 An embodiment of an indicator and a schematic structural diagram of a joint are shown, wherein the probe of the indicator is a thin rod.

[0030] Figure 8 Another embodiment of an indicator and a schematic structural diagram of a joint are shown, wherein the probe of the indicator is a sleeve.

[0031] Figure 9 A structural schematic diagram showing the relative positions of the force measuring assembly and the pull rod is shown.

[0032] Figure 10 for Figure 9 A variation of the embodiment.

[0033] Figure 11 for Figure 9 Another variation of the embodiment.

[0034] Figure 12 A schematic diagram of the structure in which the force measuring components are independently set up is shown.

[0035] Figure 13 A structural schematic diagram of the connection arrangement between the force measuring component and the joint is shown.

[0036] Figure 14 A schematic structural diagram of the connection arrangement between the force measuring assembly and the end plate of the pull rod is shown.

[0037] Description of reference numerals:

[0038] 1-hook, 2-connector, 3-clip, 4-pull rod, 5-elastic part, 6-probe, 7-scale line, 8-indicator, 9-baffle, 10-fixing plate, 11-tape, 12-release paper, 13-slot, 14-pull strip DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0040] Reference Figures 1 to 14 The tension-measurable skin stretch closure device according to the present invention includes: a fixing component, which is arranged on both sides of the skin wound and is respectively connected to the skin on both sides of the skin wound; a pulling component, including a pull rod 4 or a pull strip 14 provided with a tooth groove and a buckle 3 fixedly connected to the fixing component on one side, the pull rod 4 or the pull strip 14 passes through the fixing component on one side of the skin wound and the buckle 3 on the other side of the skin wound, the pull rod 4 or the pull strip 14 movably cooperates with the buckle 3, and in the process of pulling the pull rod 4 or the pull strip 14, the pull rod 4 or the pull strip 14 drives the fixing components on both sides to move, so that the skin on both sides of the skin wound is stretched; a tension testing component, including an elastic member 5 and an indicator, the elastic member 5 is arranged between the end plate of the pull rod 4 or the pull strip 14 and the fixing component on one side, the indicator is provided with a probe 6 parallel to the elastic member 5, and a scale line 7 is provided on the fixing component. In the process of pulling the pull rod 4 or the pull strip 14, the elastic member 5 is elastically deformed by the extrusion force, and the probe 6 is displaced by the deformation length of the elastic member and points to the scale line 7 on the fixing component.

[0041] In one embodiment according to the present invention, referring to Figure 1The fixing assembly may include a pair of fixing plates 10 and an adhesive tape 11 attached to a release paper 12. The fixing plates 10 are positioned on either side of the skin wound, with the ends of the adhesive tape 11 adhered to the surfaces of the fixing plates 10. A slot 13 is fixedly connected to one of the fixing plates 10. The buckle 3 of the pulling assembly is fixedly connected to the other of the fixing plates 10. A pull bar 14 of the pulling assembly passes through the slot 13 and the buckle 3, and the pull bar 14 flexibly engages with the buckle 3. An elastic member 5 is positioned between the end plate of the pull bar 14 and the slot 13 on one side. The indicator includes a probe 6 parallel to the elastic member 5. The slot 13 is provided with a scale line 7. When the pull bar 14 is pulled, the elastic member 5 is elastically deformed by the compressive force, and the probe 6 is displaced by the length of the elastic member's deformation and points toward the scale line 7 on the slot 13. The structure of the fixing assembly can be referred to in Patent Publication No. CN216317770U, entitled "Hook-Pull-Rod Skin Stretching Closure Device."

[0042] In one embodiment according to the present invention, referring to Figure 2 The fixing assembly may include a joint 2 and two sets of hooks 1. The joint 2 has a through hole in the middle. The pull rod 4 of the pulling assembly passes through the through hole in the middle of the two joints 2. The two sets of hooks 1 are fixedly connected to the bottom of the two joints 2, and the hooks of the two sets of hooks 1 are in opposite directions. The elastic member 5 is disposed between the end plate of the pull rod 4 and the joint 2 on one side. The indicator is provided with a probe 6 parallel to the elastic member 5. The joint 2 is provided with a scale line 7. When the pull rod 4 is pulled, the elastic member 5 is elastically deformed by the squeezing force. The probe 6 is displaced by the length of the elastic member deformation and points to the scale line 7 on the joint 2. The structure of the fixing assembly can be authorized by the patent announcement number CN216221545U entitled "Flexible Skin Stretching Closure Device".

[0043] In one embodiment of the present invention, a fixing assembly may include two connectors, two sets of hooks, and a connector. The two connectors are movably connected together. The two sets of hooks are fixedly connected below the two connectors. The hooks of each set have the same bend direction. The hooks of the two sets of hooks fixedly connected below the two connectors have opposite bend directions. Each connector is movably connected to the two connectors of the hook assembly. The buckle of the pulling assembly is fixedly connected to the connector. The pull rod passes through the buckle on the connector, and the pull rod movably engages with the buckle. An elastic member is disposed between the end plate of the pull rod and the connector on one side. The indicator is provided with a probe parallel to the elastic member. A scale line is provided on the connector. When the pull rod is pulled, the elastic member is subjected to a compressive force and elastically deforms. The probe is displaced by the length of the elastic member's deformation and points to the scale line on the connector. The structure of the fixing assembly can be referred to in patent publication number CN216257268U entitled "Bidirectional Hook Hook Skin Stretching Closure Device."

[0044] In one embodiment of the present invention, the fixing assembly includes a pair of fixing plates for a hook assembly and a connector fixture connected to the fixing plates. The hook assembly includes a connector and a set of hooks fixedly connected below the connector. The pair of fixing plates are disposed on either side of the skin wound, each having hook slots formed on the fixing plates. The hooks of the hook assembly pass through the slots on the fixing plates. The connector of the hook assembly mates with the connector fixture. The pair of fixing plates have through-holes formed at opposing positions. The buckle of the pulling assembly is fixedly connected to the fixing plates. The pull bar has a toothed groove, passes through the through-holes in the pair of fixing plates, and passes through the buckle, so that the pull bar and the buckle flexibly engage. An elastic member is disposed between an end plate of the pull bar and a fixing plate on one side. The indicator includes a probe parallel to the elastic member. A scale line is provided on the fixing plate. During the pulling of the pull bar, the elastic member is subjected to a compressive force and elastically deforms. The probe is displaced by the length of the elastic member's deformation and points toward the scale line on the fixing plate. The structure of the fixing assembly can be referred to in Patent Publication No. CN216060622U entitled "Hook-Bar Skin Stretching Closure Device."

[0045] It should be noted that Figure 3 , Figures 9 to 14 In the embodiments shown, Figure 2 The illustrated embodiment of a tension-measurable skin stretch closure device includes a fixing assembly, namely, connector 2. The illustrated embodiment is merely exemplary, and the fixing assembly of the present invention is not limited to the illustrated structure. Similarly, the fixing assembly of the tension-measurable skin stretch closure device of the present invention may refer to, but is not limited to, the structures shown in the aforementioned patents.

[0046] The buckle 3 of the present invention has a prying head that can be lifted or lowered. When lifted, the pull rod 4 or the pull strip 14 can move forward or backward from the buckle 3. When lowered, the pull rod 4 or the pull strip 14 is clamped, and has a reversible pulling function. The structural form of the buckle of the present invention is not limited.

[0047] In one embodiment of the elastic member 5, refer to Figure 4 , the elastic member 5 can be a spring. Figure 5 , the elastic member 5 can be an elastic body. Figure 6 The elastic member 5 can be a spring. The present invention has no limitation on the structure and material of the elastic member, and any elastic member that can undergo corresponding elastic deformation under the extrusion force can be used.

[0048] In one embodiment of the elastic member 5, refer to Figures 1 to 3 , Figure 9 , Figures 12 to 14 The elastic member 5 can be sleeved on the pull rod 4 or the pull strip 14, that is, wrapped around the pull rod 4 or the pull strip 14.

[0049] In one embodiment of the elastic member 5, refer to Figure 10 and Figure 11The elastic member 5 can be arranged on the outside of the pull rod 4 or the pull strip 14. Figure 10 The elastic member 5 is arranged on the upper side of the pull rod 4. Figure 11 The elastic member 5 is arranged on the end side of the pull rod 4. When the elastic member 5 is arranged on the outside of the pull rod 4 or the pull strip 14, the elastic member 5 can be multiple. Figures 4 to 6 Three elastic members 5 are shown respectively, and they can be arranged on the end side of the pull rod 4 or the pull bar 14, and two elastic members 5 are provided.

[0050] In one embodiment of the indicator, reference Figure 3 , the indicator can be fixedly connected to the end plate of the pull rod 4 or the pull bar 14, Figure 3 The indicator member in the illustrated embodiment is fixedly connected to the end plate of the pull rod 4 .

[0051] In one embodiment of the indicator, reference Figures 4 to 6 , the indicator may be provided with a through hole, refer to Figures 1 to 3 , Figures 9 to 14 , can be set between the elastic member 5 and the end plate of the pull rod 4 or the pull bar 14, can be sleeved on the pull rod 4 or the pull bar 14, the elastic member 5 can be fixedly connected to the indicator member, and the elastic member 5 can also be set separately from the indicator member.

[0052] In one embodiment of the probe, reference Figures 7 and 8 The structure of the probe 6 can be a thin rod or a sleeve. Figure 7 The probe 6 in the embodiment shown is a thin rod. Figure 8 The probe 6 in the embodiment shown is a sleeve. Figures 1 to 6 , Figures 9 to 14 The probe 6 in the embodiment shown is a thin rod.

[0053] Reference Figures 1 to 3 , Figures 7 to 14 The scale lines 7 provided on the fixed assembly may be 1-5, and the scale lines may be accompanied by an indicator 8 indicating the magnitude of the traction force. A generally safe traction force in clinical practice is 3-5 kg. During specific clinical procedures, the physician may determine the traction force to be 0-10 kg based on actual needs.

[0054] In one embodiment of the elastic member, the material of the elastic member may be metal, plastic or elastomer.

[0055] When the indicator is fixedly connected to the end plate of the pull rod 4 or the pull rod 14, and the elastic member 5 is sleeved on the pull rod 4 or the pull rod 14, that is, wrapped around the pull rod 4 or the pull rod 14, the elastic member 5 can be provided independently, connected to the end plate of the pull rod 4 or the pull rod 14, or connected to the fixed component. When the elastic member 5 is provided on the outside of the pull rod 4 or the pull rod 14, the elastic member 5 can be connected to the end plate of the pull rod 4 or the pull rod 14, or connected to the fixed component.

[0056] In one embodiment of the measurable skin stretch closure device of the present invention, reference is made to Figure 12 , the tension test assembly can be set independently. In another embodiment, refer to Figure 14 , the indicator of the tension test assembly can be connected to the end plate of the pull rod 4 or the pull bar 14. In another embodiment, referring to Figure 13 , the elastic member 5 of the tension test assembly can be connected to the fixed assembly (ie, the joint 2).

[0057] In one embodiment of the present invention, referring to Figure 10 A baffle 9 may be provided on the fixed assembly, the elastic member 5 is provided between the indicator and the baffle, the elastic member 5 is sleeved on the probe 6 of the indicator, and a through hole for the probe 6 to pass through is provided on the baffle 9.

[0058] The tension-measurable skin stretch closure device according to the present invention can be used individually or in combination, depending on the clinical situation. Multiple tension-measurable skin stretch closure devices can be used side by side. When used side by side, they can be used directly side by side or connected by connecting strips. The connecting strips are flexible and can bend and deform appropriately to conform to skin surfaces with varying curvatures and shapes. When multiple tension-measurable skin stretch closure devices are used side by side, the directions of adjacent pull rods or strips can be the same or opposite.

[0059] When using the tension-measurable skin stretch closure device of the present invention, the structure in which the tension test component and the fixing component are assembled together is as follows: Figure 13 , that is, when the elastic part is connected to the joint, first assemble the fixing component and the tension test component (omit this step if it is an integral injection molding), then fix the fixing component and the tension test component on both sides of the skin wound, and finally assemble the pulling component. For the structure where the tension test component and the pulling component are assembled together, refer to Figure 14 , that is, the indicator is connected to the end plate of the pull rod, first fix the fixing assembly on both sides of the skin wound, then assemble the pull rod or pull bar and the tension test assembly (if it is an integral injection molding, this step can be omitted), and finally connect the fixing assembly and the tension test assembly to the fixing assembly. For the tension test assembly is a separate independent component, refer to Figure 2 First, fix the fixing components on both sides of the skin wound, and then connect the tension testing component, the pulling component and the fixing component together in sequence.

[0060] The skin is stretched and fixed on the skin, and the skin on both sides of the wound is stretched by pulling the pull rod or the pull strip, thereby achieving skin traction and closure.

[0061] During the stretching movement, pay attention to the scale line touched by the probe of the indicator on the tension test assembly. The maximum tension that the skin can withstand should be determined based on a comprehensive assessment of factors such as the size of the skin wound, the area of ​​skin covered by the stretch closure, and the patient's skin condition. Generally, the maximum tension should not exceed the 3-5kg tension scale line. Within the maximum tension range, consider the pulling efficiency and select the appropriate tension level represented by the appropriate scale line. If the probe on the indicator exceeds the most appropriate scale line, adjust the buckle to move the pull rod or pull bar back or forward from the buckle until it is within the appropriate scale line range.

[0062] When the skin on both sides of the wound is gradually stretched to a tension that can be sutured and no further stretching is required, the wound is sutured or closed, and the fixing component, pulling component and tension testing component of the stretch closure device can be removed in the appropriate order.

[0063] Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A tension-measurable skin stretch closure device, characterized in that: include: The fixing assembly includes a pair of fixing plates and an adhesive tape attached to a release paper, the pair of fixing plates being arranged on both sides of the skin wound, the ends of the adhesive tape being attached to the surfaces of the fixing plates, the card slot being fixedly connected to one of the pair of fixing plates, the buckle of the pulling assembly being fixedly connected to the other of the pair of fixing plates, the pull strip of the pulling assembly passing through the card slot and the buckle, and the pull strip and the buckle being movably engaged; The pulling assembly includes a pull strip provided with teeth and a buckle fixedly connected to the fixing assembly on one side. The pull strip passes through the fixing assembly on one side of the skin wound and the buckle on the other side of the skin wound. The pull strip and the buckle are movably matched. When the pull strip is pulled, the pull strip drives the fixing assemblies on both sides to move, thereby stretching the skin on both sides of the skin wound. The tension test assembly includes an elastic member and an indicator member. The elastic member is arranged between the end plate of the pull rod and the slot on one side. The indicator member is provided with a probe parallel to the elastic member. The slot is provided with a scale line. When the pull rod is pulled, the elastic member is elastically deformed by the extrusion force. The probe is displaced by the deformation length of the elastic member and points to the scale line on the fixed assembly. The elastic part is one of an elastomer and a spring; the elastic part is sleeved on the pull rod or arranged on the outside of the pull rod; the indicator is fixedly connected to the end plate of the pull rod; the indicator is provided with a through hole, arranged between the elastic part and the end plate of the pull rod, and sleeved on the pull rod; the structure of the probe is a thin rod or a sleeve.

2. A tension-measurable skin stretch closure device, characterized in that: include: The fixing assembly includes a joint and two sets of crochet needles. A through hole is provided in the middle of the joint. The pull rod of the pulling assembly passes through the through hole in the middle of the two joints. The two sets of crochet needles are fixedly connected to the bottom of the two joints respectively, and the hooks of the two sets of crochet needles are in opposite directions. The pulling assembly includes a pull rod with a tooth groove and a buckle fixedly connected to the fixing assembly on one side. The pull rod passes through the fixing assembly on one side of the skin wound and the buckle on the other side of the skin wound. The pull rod and the buckle are movably engaged. When the pull rod is pulled, the pull rod drives the fixing assemblies on both sides to move, thereby stretching the skin on both sides of the skin wound. The tension test assembly includes an elastic member and an indicator member. The elastic member is arranged between the end plate of the pull rod and the joint on one side. The indicator member is provided with a probe parallel to the elastic member. A scale line is provided on the joint. When the pull rod is pulled, the elastic member is elastically deformed by the extrusion force. The probe is displaced by the deformation length of the elastic member and points to the scale line on the fixed assembly. The elastic part is one of an elastomer and a spring; the elastic part is sleeved on the pull rod or arranged on the outside of the pull rod; the indicator is fixedly connected to the end plate of the pull rod; the indicator is provided with a through hole, arranged between the elastic part and the end plate of the pull rod, and sleeved on the pull rod; the structure of the probe is a thin rod or a sleeve.

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