Strength-adjustable high-fitting-degree skin stitching instrument

Abstract

The invention belongs to the technical field of skin stitching, and particularly relates to a force-adjustable high-fitting-degree skin stitching instrument which comprises two bases. The force adjusting assembly comprises connecting plates symmetrically arranged above the two bases, a mounting plate mounted on the upper surface of one of the bases, and a supporting plate, a fixing plate, a driving rod, a driving disc, a movable rod, a tooth claw and an oblique tooth plate which are used for force adjustment, and flexible adjustment of the sewing force is achieved; the suture force can be accurately controlled according to different wound conditions, reverse rotation of the force adjusting component caused by accidental external force in the suture process can be prevented, stability of the suture force and fine adjustment of the suture force are guaranteed, and diversified requirements of different wound depths and skin tissue characteristics for the suture force are met; the force cannot be reduced due to misoperation or external force, and the tightness and reliability of wound suture are ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of skin suturing, and particularly relates to a skin stapler with adjustable force and high fitting degree. Background Art

[0002] After years of clinical application in surgical departments such as general surgery, orthopedics, obstetrics and gynecology, burn department, emergency department, cardiothoracic surgery, and neurosurgery, the skin stapler has proven to have the advantages of being fast and simple in the process of epidermal suture for long wounds, which is a major reform in suture technology; In the fields of surgery and wound repair, due to the advantages of high efficiency and convenience, the skin stapler has gradually become an important instrument to replace traditional manual suture. However, most of the current skin staplers on the market have the problem of inaccurate control of suture force, which seriously affects the clinical use effect; If the suture force applied to the wound is too small, resulting in incomplete suture of the wound, it is likely to cause delayed wound healing; while if the suture force applied to the wound is too large, it is likely to cause skin damage due to tension stress stimulation, resulting in pathological damage such as tension blisters on the wound skin; Moreover, when the existing skin stapler sutures the wound near a joint or on a curved part of the body, there will be a large gap between the stapler and the skin, resulting in easy detachment of the skin stapler during suture, thus affecting the suture effect on the patient's wound.

[0003] To solve the above problems, a skin stapler with adjustable force and high fitting degree is proposed in this application. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides a skin stapler with adjustable force and high fitting degree, which realizes flexible adjustment of suture force, can accurately control the suture force according to different wound conditions, and ensures the stability of the suture force. The refined adjustment of the suture force meets the diverse requirements of different wound depths and skin tissue characteristics for suture force, and will not cause a decrease in force due to misoperation or external force, ensuring the tightness and reliability of wound suture. Moreover, it enhances the fitting effect between the stapler and the skin. The fitting bumps increase the contact area and provide additional friction, making the stapler not prone to displacement during suture and ensuring the accuracy of suture operation.

[0005] To achieve the above object, the present invention provides the following technical solution: A skin stapler with adjustable force and high fitting degree, comprising two bases; A force adjustment component is installed in the base. The force adjustment component includes a connecting plate symmetrically arranged above the two bases, a mounting plate installed on the upper surface of one of the bases, and a support plate, a fixing plate, a driving rod, a driving disc, a movable rod, a claw, and an inclined tooth plate for force adjustment; A limit unlocking component is installed inside the support plate. The limit unlocking component includes adjusting plates installed at both ends of the helical tooth plate, guide rods slidably connected in through holes formed on the surfaces of the adjusting plates, and a return spring for resetting. A force limit component is installed between the two support plates. The force limit component includes a threaded rod installed between the two support plates and a nut for limiting. A fitting component is installed on the surface of the base. The fitting component includes a plug-in block inserted into a slot formed on the surface of the base, a skin flexible patch installed on the bottom surface of the plug-in block, and fitting bumps for increasing the fitting stability.

[0006] Preferably, in a force-adjustable and highly fitting skin stapler according to the present invention, both of the connecting plates are slidably connected inside the mounting plate, and both ends of the connecting plates penetrate through the mounting plate and extend to the outside of the connecting plates respectively. Support plates are installed at both ends of both of the connecting plates, and one end of one of the connecting plates is connected to the base. A fixing plate is installed inside the mounting plate. A driving rod is rotatably connected in a through hole formed on the surface of the fixing plate. Both ends of the driving rod penetrate through the fixing plate and extend to the outside of the fixing plate, and are connected to a driving disk arranged outside the fixing plate. An active rod is installed on a side of the driving disk away from the fixing plate. A claw is rotatably connected to the surface of the active rod. A helical tooth plate is slidably connected in a groove formed on the surface of the connecting plate. The claw is engaged with the helical tooth plate.

[0007] Preferably, in a force-adjustable and highly fitting skin stapler according to the present invention, a worm gear is installed on the surface of the driving rod. A worm is rotatably connected inside the mounting plate. The worm gear is engaged with the worm. One end of the worm penetrates through the mounting plate and extends to the outside near the support plate, and is connected to an anti-slip wheel disk arranged outside the mounting plate.

[0008] Preferably, in a force-adjustable and highly fitting skin stapler according to the present invention, the driving disk is arranged in a special-shaped circular structure, and the active rod is located at an extending part of the driving disk.

[0009] Preferably, in a force-adjustable and highly fitting skin stapler according to the present invention, the rack of the helical tooth plate is arranged in an inclined surface structure, and the inclined surface faces the direction of the mounting plate.

[0010] Preferably, for a force - adjustable and highly - conformable skin stapler of the present invention, a sliding groove adapted to the adjusting plate is formed on the surface of the connecting plate. The adjusting plate is slidably connected in this sliding groove, and both ends of the guiding rod penetrate through the adjusting plate and are installed in the sliding groove formed on the surface of the connecting plate. A return spring is sleeved on the surface of the guiding rod. One end of the return spring is connected to the adjusting plate, and the other end of the return spring is installed in the sliding groove formed on the surface of the connecting plate.

[0011] Preferably, for a force - adjustable and highly - conformable skin stapler of the present invention, the elastic force of the return spring is greater than the downward pressure of the claw.

[0012] Preferably, for a force - adjustable and highly - conformable skin stapler of the present invention, the threaded rod is slidably connected inside the mounting plate, and a nut is threadedly connected to the part of the threaded rod located between the two support plates.

[0013] Preferably, for a force - adjustable and highly - conformable skin stapler of the present invention, several conforming bumps are installed on the conforming surface of the skin flexible patch and the skin.

[0014] Preferably, for a force - adjustable and highly - conformable skin stapler of the present invention, stabilizing bars are symmetrically installed on the surface of the plug - in block, and a card slot adapted to the stabilizing bars is formed on the surface of the base. The stabilizing bars are snap - fitted in this card slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the force - adjustment component, by the coordinated use of structures such as the driving rod, driving disk, movable rod, claw, and helical gear plate, the flexible adjustment of the suturing force is realized. It can accurately control the suturing force according to different wound conditions, and can easily perform the suturing operation, reducing the operation difficulty and physical exertion. At the same time, the worm - gear and worm drive has a self - locking characteristic, which can prevent the reverse rotation of the force - adjustment components due to accidental external forces during suturing, ensuring the stability of the suturing force. The refined adjustment of the suturing force meets the diverse requirements of different wound depths and skin tissue characteristics for the suturing force, and will not reduce the force due to misoperation or external forces, ensuring the tightness and reliability of wound suturing.

[0016] 2. Through the limit - unlocking component, by the coordinated use of structures such as the adjusting plate, guiding rod, and return spring, when pressing the helical gear plate to overcome the elastic force of the return spring, the adjusting plate drives the helical gear plate to move, which can unlock the two bases after suturing, thus facilitating the medical staff to safely remove the stapler from the patient's skin, and ensuring the stability and reliability of the helical gear plate during adjustment.

[0017] 3. Through the force limit component, by using the cooperation of the set threaded rod and nut structure, and by adjusting the position of the nut, the distance between the two bases is accurately limited. Doctors can flexibly adjust the position of the nut on the threaded rod according to actual needs, thereby limiting the upper limit of the suture force and avoiding damage to the skin and subcutaneous tissues due to excessive force, providing safety protection for the suture of different types of wounds.

[0018] 4. Through the fitting component, by using the cooperation of structures such as the skin flexible patch, insertion block, and fitting convex block, the fitting effect between the stapler and the skin is enhanced. The fitting convex block increases the contact area and provides additional friction, making the stapler not prone to displacement during the suturing process, ensuring the accuracy of the suturing operation, and facilitating the disassembly and replacement of the skin flexible patch and fitting convex block. This enables the stapler to be reused and meet the needs of different patients or different surgical scenarios. Brief Description of the Drawings

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of structures such as the base, insertion block, and skin flexible patch in the present invention; Figure 3 is a structural schematic diagram of the internal structure of the mounting plate in the present invention; Figure 4 is a structural schematic diagram of structures such as the helical tooth plate, tooth claw, and movable rod in the present invention; Figure 5 is a structural schematic diagram of structures such as the support plate, adjustment plate, and guide rod in the present invention; Figure 6 is a structural schematic diagram of the adjustment plate, guide rod, and return spring in the present invention; Figure 7 is a structural schematic diagram of structures such as the insertion block, stabilizing strip, and base in the present invention; Figure 8 is a structural schematic diagram of structures such as the worm gear and worm in the present invention; In the figure: 1. Base; 2. Force adjustment component; 21. Connecting plate; 22. Mounting plate; 23. Support plate; 24. Fixed plate; 25. Driving rod; 26. Driving disk; 27. Movable rod; 28. Tooth claw; 29. Helical tooth plate; 210. Worm gear; 211. Worm; 212. Anti-slip wheel disk; 3. Limit unlocking component; 31. Adjustment plate; 32. Guide rod; 33. Return spring; 4. Force limit component; 41. Threaded rod; 42. Nut; 5. Fitting component; 51. Insertion block; 52. Skin flexible patch; 53. Fitting bump; 54. Stabilizing bar. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 - 8 shown; A skin stapler with adjustable force and high fitting degree includes two bases 1; A force adjustment component 2 is installed in the base 1. The force adjustment component 2 includes a connecting plate 21 symmetrically arranged above the two bases 1, a mounting plate 22 installed on the upper surface of one of the bases 1, and a support plate 23, a fixing plate 24, a driving rod 25, a driving disc 26, a movable rod 27, a claw 28 and an inclined tooth plate 29 for force adjustment; Both connecting plates 21 are slidably connected to the inside of the mounting plate 22, and both ends of the connecting plate 21 penetrate through the mounting plate 22 and extend to the outside of the connecting plate 21 respectively. Support plates 23 are installed at both ends of the two connecting plates 21, and one end of the connecting plate 21 is connected to the base 1. A fixing plate 24 is installed inside the mounting plate 22. A driving rod 25 is rotatably connected in the through hole opened on the surface of the fixing plate 24. Both ends of the driving rod 25 penetrate through the fixing plate 24 and extend to the outside of the fixing plate 24 and are connected to a driving disc 26 arranged outside the fixing plate 24. A movable rod 27 is installed on the side of the driving disc 26 away from the fixing plate 24. A claw 28 is rotatably connected to the surface of the movable rod 27. An inclined tooth plate 29 is slidably connected in the groove opened on the surface of the connecting plate 21. The claw 28 meshes with the inclined tooth plate 29. By the combined use of structures such as the driving rod 25, the driving disc 26, the movable rod 27, the claw 28 and the inclined tooth plate 29, the flexible adjustment of the suturing force is realized, and the suturing force can be accurately controlled according to different wound conditions; A worm gear 210 is installed on the surface of the driving rod 25, and a worm 211 is rotatably connected inside the mounting plate 22. The worm gear 210 meshes with the worm 211; One end of the worm 211 penetrates through the mounting plate 22 and extends to the outside near the support plate 23 and is connected to the anti-slip wheel disc 212 arranged outside the mounting plate 22. By rotating the anti-slip wheel disc 212, the doctor can easily perform the suturing operation, reducing the operation difficulty and physical consumption. At the same time, the worm and worm gear 210-211 transmission has a self-locking characteristic, which can prevent the force adjustment component from rotating in the reverse direction due to accidental external force during the suturing process, ensuring the stability of the suturing force; The driving disc 26 is arranged in a special-shaped circular structure, and the movable rod 27 is located at the extended part of the driving disc 26, which determines the uniqueness of the movement track of the movable rod 27. Furthermore, the process of the claw 28 pushing the helical tooth plate 29 to slide is more stable and controllable, enabling fine adjustment of the suturing force and meeting the diverse requirements of different wound depths and skin tissue characteristics for the suturing force; The rack of the helical tooth plate 29 is arranged in an inclined surface structure, and the inclined surface faces the direction of the mounting plate 22, so that it can only drive the two bases 1 to approach each other and cannot make them move away from each other, ensuring that during the suturing process, once the appropriate suturing force is adjusted, the force will not decrease due to misoperation or external force, guaranteeing the tightness and reliability of the wound suturing and creating good conditions for wound healing.

[0022] A limit unlocking component 3 is installed inside the support plate 23. The limit unlocking component 3 includes adjusting plates 31 installed at both ends of the helical tooth plate 29, guide rods 32 slidably connected in through holes opened on the surfaces of the adjusting plates 31, and a return spring 33 for resetting; Chutes adapted to the adjusting plates 31 are opened on the surface of the connecting plate 21. The adjusting plates 31 are slidably connected in these chutes. Both ends of the guide rod 32 penetrate through the adjusting plates 31 and are installed in the chutes opened on the surface of the connecting plate 21. A return spring 33 is sleeved on the surface of the guide rod 32. One end of the return spring 33 is connected to the adjusting plate 31, and the other end of the return spring 33 is installed in the chutes opened on the surface of the connecting plate 21. By pressing the helical tooth plate 29 to overcome the elastic force of the return spring 33, the adjusting plate 31 drives the helical tooth plate 29 to move, enabling unlocking of the two bases 1 after the suturing is completed, and thus facilitating the safe removal of the suturing device from the patient's skin by medical staff; The elastic force of the return spring 33 is greater than the downward pressure of the claw 28. The design that the elastic force of the return spring 33 is greater than the downward pressure of the claw 28 ensures the stability and reliability of the helical tooth plate 29 during the adjustment process.

[0023] A force limit component 4 is installed between the two support plates 23. The force limit component 4 includes a threaded rod 41 installed between the two support plates 23 and a nut 42 for limiting; The threaded rod 41 is slidably connected to the inside of the mounting plate 22, and a nut 42 is threadedly connected to the portion of the threaded rod 41 located between the two support plates 23, achieving precise limitation of the distance between the two bases 1. Doctors can flexibly adjust the position of the nut 42 on the threaded rod 41 according to actual needs, thereby limiting the upper limit of the suturing force and avoiding damage to the skin and subcutaneous tissue due to excessive force, providing safety protection for the suturing of different types of wounds.

[0024] A fitting component 5 is mounted on the surface of the base 1. The fitting component 5 includes a plug-in block 51 inserted into a slot opened on the surface of the base 1, a skin flexible patch 52 mounted on the bottom surface of the plug-in block 51, and a fitting convex block 53 for increasing the fitting stability; Several fitting convex blocks 53 are mounted on the fitting surface of the skin flexible patch 52 and the skin. The skin flexible patch 52 and the fitting convex blocks 53 enhance the fitting effect between the stapler and the skin. The fitting convex blocks 53 increase the contact area and provide additional friction, making the stapler not prone to displacement during the suturing process and ensuring the accuracy of the suturing operation; Stabilizing bars 54 are symmetrically mounted on the surface of the plug-in block 51, and a card slot adapted to the stabilizing bars 54 is opened on the surface of the base 1. The stabilizing bars 54 are snapped into this card slot, facilitating the disassembly and replacement of the skin flexible patch 52 and the fitting convex blocks 53, enabling the stapler to be reused and meeting the needs of different patients or different surgical scenarios; Workflow: First, insert the plug-in block 51 into the slot on the surface of the base 1, so that the stabilizing bars 54 are snapped into the corresponding card slots on the surface of the base 1, and the fitting convex blocks 53 on the bottom surface of the skin flexible patch 52 contact the skin. Since the fitting convex blocks 53 are made of medical-grade silicone material and the skin flexible patch 52 is made of breathable medical pressure-sensitive adhesive material, it can increase the fitting stability with the skin while ensuring the breathability of the skin. Moreover, the skin flexible patch 52 is made of a flexible material and can adapt to different curved parts, thereby improving the fitting degree between the skin stapler and the skin; Then, rotate the anti-slip wheel disc 212 at this time. The anti-slip wheel disc 212 drives the worm 211 to rotate. Since the worm 211 meshes with the worm wheel 210, the worm wheel 210 drives the drive rod 25 to rotate. Both ends of the drive rod 25 penetrate through the fixed plate 24 and are connected to the drive disc 26. The drive disc 26 has a special-shaped circular structure. When rotating, the movable rod 27 located at its extended part moves accordingly. Since the rack of the bevel gear plate 29 has an inclined surface structure and the inclined surface faces the direction of the mounting plate 22, the tooth claw 28 rotatably connected to the surface of the movable rod 27 pushes the bevel gear plate 29 and the connecting plate 21 to slide in the mounting plate 22 under the drive of the movable rod 27, causing the two bases 1 to approach each other. Due to the special structure of the bevel gear plate 29, it can only drive the two bases 1 to approach each other and cannot drive the two bases 1 to move away from each other. Thus, the skin wound is sutured. By precisely controlling the number of rotation turns of the anti-slip wheel disc 212, the doctor can flexibly adjust the degree of approach of the two bases 1, and then accurately control the skin suture force, achieving an efficient suture treatment for the skin wound; By rotating the nut 42, the nut 42 is threadedly connected to the surface of the threaded rod 41, and the moving nut 42 is fitted to the mounting plate 22, thereby restricting the distance between the two bases 1 and achieving the limit of the suture force, ensuring that the force of the stapler is within a suitable range and accurately controlling the suture force within a suitable range to prevent the two bases 1 from approaching too much; When it is necessary to release the suture, first press the bevel gear plate 29. At this time, the adjusting plates 31 at both ends of the bevel gear plate 29 slide in the sliding grooves on the surface of the connecting plate 21. During the sliding process, the adjusting plates 31 slide on the surface of the guide rod 32. The guide rod 32 can guide the moving position of the adjusting plates 31 to prevent the adjusting plates 31 from shifting in position during the movement. As the adjusting plates 31 continue to move, the adjusting plates 31 compress the return spring 33 at this time, causing the return spring 33 to deform. Then, pull the base 1, making the two bases 1 move away from each other, thus achieving the release of the suture.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A force-adjustable, high-fitting skin suture device, comprising two bases (1); Features: A force adjustment component (2) is installed in the base (1), and the force adjustment component (2) comprises a connecting plate (21) symmetrically arranged above the two bases (1), a mounting plate (22) mounted on the upper surface of one of the bases (1), and a support plate (23) for force adjustment, a fixing plate (24), a driving rod (25), a driving disc (26), a movable rod (27), a tooth claw (28), and a bevel tooth plate (29); A limit unlocking assembly (3) is installed in the support plate (23), and the limit unlocking assembly (3) comprises an adjustment plate (31) installed at both ends of the bevel tooth plate (29), a guide rod (32) slidably connected to a through hole provided on the surface of the adjustment plate (31), and a reset spring (33) for reset; A force limiting assembly (4) is installed between the two support plates (23), and the force limiting assembly (4) comprises a threaded rod (41) installed between the two support plates (23) and a nut (42) for limiting position; A fitting component (5) is installed on the surface of the base (1), and the fitting component (5) comprises a plug-in block (51) plugged into a slot provided on the surface of the base (1), a skin-flexible patch (52) installed on the bottom surface of the plug-in block (51), and a fitting protrusion (53) for increasing fitting stability.

2. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The two connecting plates (21) are slidably connected to the inside of the mounting plate (22), and both ends of the connecting plates (21) penetrate the mounting plate (22) and extend to the outside of the connecting plates (21), and both ends of the two connecting plates (21) are installed with support plates (23), and the connecting plates (21) at one end are connected to the base (1), and a fixing plate (24) is installed inside the mounting plate (22), and a driving rod (25) is rotatably connected to a through hole provided on the surface of the fixing plate (24). Both ends of the driving rod (25) penetrate the fixed plate (24) and extend to the outside of the fixed plate (24) and are connected to a driving disk (26) arranged outside the fixed plate (24); a movable rod (27) is installed on the side of the driving disk (26) away from the fixed plate (24); a tooth claw (28) is rotatably connected to the surface of the movable rod (27); a bevel tooth plate (29) is slidably connected in a groove provided on the surface of the connecting plate (21); and the tooth claw (28) is meshed with the bevel tooth plate (29).

3. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: A worm wheel (210) is mounted on the surface of the driving rod (25), a worm (211) is rotatably connected inside the mounting plate (22), and the worm wheel (210) is meshed with the worm (211); One end of the worm (211) passes through the mounting plate (22), extends to the outside close to the support plate (23), and is connected to an anti-slip wheel (212) arranged outside the mounting plate (22).

4. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The driving disc (26) is formed of a special-shaped circular structure, and the movable rod (27) is located at an extension portion of the driving disc (26).

5. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The rack of the beveled tooth plate (29) is arranged in a beveled structure, and the bevel faces the direction of the mounting plate (22).

6. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The surface of the connecting plate (21) is provided with a slide groove matched with the adjusting plate (31), and the adjusting plate (31) is slidably connected in the slide groove, and both ends of the guide rod (32) pass through the adjusting plate (31) and are installed in the slide groove provided on the surface of the connecting plate (21), and the surface of the guide rod (32) is sleeved with a return spring (33), one end of the return spring (33) is connected to the adjusting plate (31), and the other end of the return spring (33) is installed in the slide groove provided on the surface of the connecting plate (21).

7. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The elastic force of the return spring (33) is greater than the downward pressure of the tooth claw (28).

8. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The threaded rod (41) is slidably connected to the inside of the mounting plate (22), and a nut (42) is threadedly connected to the portion of the threaded rod (41) located between the two support plates (23).

9. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The skin-fitting surface of the flexible skin patch (52) and the skin is provided with a plurality of fitting protrusions (53).

10. The force-adjustable high-fitting skin stapler according to claim 1, characterized in that: The surface of the plug-in block (51) is symmetrically mounted with stabilizing strips (54), and the surface of the base (1) is provided with a slot that matches the stabilizing strip (54), and the stabilizing strip (54) is snapped into the slot.

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