An automatic closure antibacterial skin stapler and staple

Abstract

The application discloses an automatic closing antibacterial skin stapler and a stapling nail, relates to the technical field of skin stapling, and solves the problems that the closing force cannot be dynamically adjusted and uniform clamping is difficult to realize in the prior art. The automatic closing antibacterial skin stapler comprises a stapler body and a stapling nail cartridge installed in the stapler body, the front end of the stapler body is provided with a clamping arm assembly, the clamping arm assembly comprises symmetrically-distributed left and right clamping arms, and the left and right clamping arms are rotationally connected with the stapler body through hinges; a thickness adjusting mechanism is arranged in the stapler body and corresponds to the clamping arm assembly, the thickness adjusting mechanism comprises a bidirectional screw rod, a torque feedback ring is sleeved on the bidirectional screw rod, a pressure sensor is arranged on the outer ring of the torque feedback ring, and a warning device is connected to the stapler body. The automatic closing antibacterial skin stapler can meet different stapling requirements, simultaneously monitors the torque change in the clamping process in real time, and avoids tissue damage caused by excessive clamping.

Description

Technical Field

[0001] This utility model relates to the field of skin suturing technology, specifically to an automatic closing antibacterial skin suture device and suture staples. Background Technology

[0002] In surgery, skin suturing is a crucial step in wound healing. Traditional manual suturing relies on the doctor's experience and has problems such as time-consuming operation and uneven suturing. Although existing skin suture devices can improve efficiency, they are not good at adhering to irregular wound edges when dealing with wounds with uneven edges. They require frequent manual adjustment of tissue position with forceps, which increases the complexity of the operation. Therefore, clamping arms are attached to traditional suture devices.

[0003] However, the skin thickness varies significantly in different areas, with eyelid skin being approximately 0.5 mm thick and back skin reaching 3 mm in thickness. Traditional suture clamps have a fixed opening angle for their clamping arms, making adaptive adjustment difficult. The basic structure of the existing clamping device is based on the utility model with publication number CN212346630U, which includes a base. A support seat is screwed to the top left of the base, and a rubber pad is placed at the top of the support seat. A housing is located on the top right of the base. Multiple insertion holes communicating with the outer surface are formed on the inner walls of both sides of the housing's inner cavity from top to bottom. A second spring is located at the bottom of the housing's inner cavity, along with a locking mechanism located at the top of the second spring. A connecting rod is located at the top of the second spring, and a top seat is connected to the other end of the connecting rod via a connecting block. A silicone pad is placed in the inner cavity of the groove at the bottom of the top seat.

[0004] Existing technologies can lead to poor staple formation in thick tissues due to insufficient pressure, while causing ischemic damage in thin tissues due to excessive pressure. They also cannot dynamically adjust the closure force according to the tissue healing needs, making it difficult to achieve uniform clamping.

[0005] Therefore, this invention proposes an automatically closing antibacterial skin suture device and suture staple to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide an automatically closing antibacterial skin suture device and suture staple, which solves the problem in the prior art that the closing force cannot be dynamically adjusted and it is difficult to achieve uniform clamping.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] An automatically closing antibacterial skin suture device includes a suture device body and a suture cartridge installed in the suture device body. A clamping arm assembly is provided at the front end of the suture device body. The clamping arm assembly includes a symmetrically distributed left clamping arm and a right clamping arm. The left clamping arm and the right clamping arm are rotatably connected to the suture device body by hinges.

[0009] The suture body is provided with a thickness adjustment mechanism corresponding to the clamping arm assembly. The thickness adjustment mechanism includes a bidirectional lead screw, which is rotatably connected to the suture body. A knob is connected to the middle of the bidirectional lead screw through a bevel gear assembly. The knob is rotatably connected to the suture body. Two wedge blocks are symmetrically threaded on the bidirectional lead screw. The wedge blocks abut against the rotation shafts of the left and right clamping arms.

[0010] A torque feedback ring is fitted onto the bidirectional lead screw, and a pressure sensor is provided on the outer ring of the torque feedback ring. An alarm is connected to the sewing machine body, and the alarm is electrically connected to the torque feedback ring.

[0011] By adopting the above technical solution, the rotation angles of the left and right clamping arms can be dynamically adjusted to meet different suturing needs. At the same time, a pressure sensor is set on the outer ring of the torque feedback ring on the bidirectional screw, which can monitor the torque changes during the clamping process in real time, avoid excessive clamping and tissue damage, and ensure suturing safety.

[0012] Furthermore, the front ends of both the left and right clamping arms are provided with tissue cleaning grooves, and a scraper is slidably connected in the tissue cleaning groove. The scraper is connected to the bottom surface of the tissue cleaning groove through a return spring, and the front end of the scraper protrudes 0.5-1mm from the surface of the left and right clamping arms.

[0013] By adopting the above technical solution, the scraper can automatically remove tissue debris and exudate.

[0014] Furthermore, the surface of the scraper is provided with a hydrophobic coating.

[0015] By adopting the above technical solution, the hydrophobic coating can prevent tissue from sticking to the scraper, making the cleaning operation smoother.

[0016] Furthermore, the inner sides of both the left and right clamping arms are provided with wavy anti-slip textures.

[0017] By adopting the above technical solution, the wavy anti-slip texture on the inner side of the left and right clamping arms increases the friction between the clamping arms and the tissue, which can prevent the tissue from sliding and achieve stable clamping.

[0018] Furthermore, both the left and right clamping arms are connected to elastic retraction straps on their outer sides. The elastic retraction straps are made of silicone material and have barbed protrusions on their surface.

[0019] By adopting the above technical solution, the elastic retraction band on the outside can adapt to different tissue thicknesses through elastic tension, and the barbed structure further enhances the gripping force, assisting the clamping arm in achieving uniform force distribution.

[0020] Furthermore, the bottom of the suture clip is connected to an anti-snagging spring, the end of which is curved and contacts the tail of the suture clip.

[0021] By adopting the above technical solution, the end of the anti-stud spring can prevent the suture staple from getting stuck in the staple cartridge through elastic support, ensuring that the suture staple can be ejected smoothly and improving the continuity of operation.

[0022] A suture staple, wherein the suture staple is disposed in the suture staple magazine, the tail of the suture staple is provided with a guide wing, the suture staple is made of shape memory alloy, the middle of the suture staple is provided with an annular groove, and the surface of the suture staple is provided with an antibacterial coating.

[0023] By adopting the above technical solutions, the suture staple can trigger the shape memory effect after being deformed under force, and the annular groove will automatically shrink, causing the two ends of the suture staple to bend inward to form a tighter closed structure; the guide wing at the tail can guide the suture staple to accurately enter the tissue, improving the staple insertion accuracy; the antibacterial coating on the surface can inhibit bacterial growth, reduce the risk of postoperative infection, and improve the safety of suturing.

[0024] In summary, compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This invention enables the rotation of a knob to drive a bidirectional lead screw, causing symmetrically threaded wedge blocks to move along the lead screw. This, in turn, abuts against and adjusts the rotation axis positions of the left and right clamping arms, allowing for dynamic adjustment of the rotation angles of the left and right clamping arms to meet different suturing needs. Simultaneously, a pressure sensor is installed on the outer ring of the torque feedback ring on the bidirectional lead screw, enabling real-time monitoring of torque changes during clamping. When the closing force exceeds a preset safety threshold, the pressure sensor transmits a signal to an alarm, which then sounds an alarm to prevent excessive clamping and tissue damage, thus ensuring suturing safety. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0027] Figure 2 This is the front view of the present invention;

[0028] Figure 3 This is a partial cross-sectional schematic diagram of the top view of this utility model;

[0029] Figure 4 This is the left view of the present invention;

[0030] Figure 5 This is a three-dimensional schematic diagram of the suture staple of this utility model;

[0031] In the diagram: 1. Suture body; 2. Suture cartridge; 4. Left clamping arm; 5. Right clamping arm; 6. Hinge; 8. Two-way lead screw; 9. Bevel gear assembly; 10. Knob; 11. Wedge block; 12. Torque feedback ring; 13. Pressure sensor; 14. Alarm; 15. Tissue cleaning groove; 16. Scraper; 3. Hydrophobic coating; 17. Return spring; 18. Wavy anti-slip texture; 19. Elastic retraction band; 20. Anti-stitch spring; 21. Suture staple; 22. Guide wing; 24. Annular groove; 25. Antibacterial coating. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In this application, the terms "upper," "inner," "outer," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0034] like Figure 1-5 As shown, an automatically closing antibacterial skin suture device includes a suture device body 1 and a suture cartridge 2 installed within the suture device body 1. An anti-jamming spring 20 is connected to the bottom of the suture cartridge 2, and the end of the anti-jamming spring 20 is arc-shaped and protrudes to contact the tail of the suture staple 21. A clamping arm assembly is provided at the front end of the suture device body 1. The clamping arm assembly includes a symmetrically distributed left clamping arm 4 and a right clamping arm 5, both of which are rotatably connected to the suture device body 1 via hinges 6. The inner sides of both the left and right clamping arms 4 and 5 are provided with wavy anti-slip textures 18. Elastic retraction straps 19 are connected to the outer sides of both the left and right clamping arms 4 and 5. The elastic retraction straps 19 are made of silicone and have barbed protrusions on their surface.

[0035] Furthermore, both the left clamping arm 4 and the right clamping arm 5 have tissue cleaning grooves 15 at their front ends. A scraper 16 is slidably connected within the tissue cleaning groove 15. The scraper 16 is connected to the bottom surface of the tissue cleaning groove 15 via a return spring 17. The front end of the scraper 16 protrudes 0.5-1mm from the surfaces of the left clamping arm 4 and the right clamping arm 5. The surface of the scraper 16 is coated with a hydrophobic coating 3.

[0036] Furthermore, a thickness adjustment mechanism is provided within the suture body 1 corresponding to the clamping arm assembly. This mechanism includes a bidirectional lead screw 8, which is rotatably connected to the suture body 1. A knob 10 is connected to the middle of the bidirectional lead screw 8 via a bevel gear assembly 9, and the knob 10 is also rotatably connected to the suture body 1. Two wedge blocks 11 are symmetrically threaded onto the bidirectional lead screw 8, and these wedge blocks 11 abut against the rotation shafts of the left clamping arm 4 and the right clamping arm 5. A torque feedback ring 12 is fitted onto the bidirectional lead screw 8, and a pressure sensor 13 is located on the outer ring of the torque feedback ring 12. An alarm 14 is connected to the suture body 1, and the alarm 14 is electrically connected to the torque feedback ring 12.

[0037] A suture staple, wherein the suture staple 21 is disposed in the suture staple chamber 2, the tail of the suture staple 21 is provided with a guide wing 22, the suture staple 21 is made of shape memory alloy, the middle of the suture staple 21 is provided with an annular groove 24, and the surface of the suture staple 21 is provided with an antibacterial coating 25.

[0038] The working process of this utility model is as follows:

[0039] First, the shape memory alloy staple 21 is inserted into the staple cartridge. The arc-shaped structure at the end of the anti-jamming spring 20 fits into the guide wing 22 at the tail of the staple 21, and the spring force is used to form a pre-pushing force to prevent the staple body from getting stuck.

[0040] Then, holding the suture body 1, align the left and right clamping arms 5 with the skin on both sides of the surgical incision, and stretch the elastic retraction band 19 outward. The barbed protrusions embed into the superficial dermis, achieving tension-free retraction of the incision. Next, rotate the knob 10 of the thickness adjustment mechanism, which drives the bidirectional lead screw 8 to rotate through the bevel gear assembly 9. This causes the symmetrically distributed wedge blocks 11 to move along the axis of the lead screw, and then the wedge blocks 11 abut against the rotation axis of the left clamping arm 4 and the right clamping arm 5. By changing the initial position of the rotation axis, the angle of synchronous rotation of the left clamping arm 4 and the right clamping arm 5 around the hinge axis 6 is dynamically adjusted, thus adapting to skin tissues of different thicknesses. The inner wavy anti-slip texture 18 forms a friction lock with the skin surface, ensuring no slippage or displacement during clamping. At the same time, the buffering effect of the elastic retraction band 19 ensures that the clamping force is evenly distributed.

[0041] Furthermore, during the closing process of the clamping arm, the protruding part at the front end of the scraper 16 scrapes away excess bleeding and tissue debris from the incision edge, and the hydrophobic coating 3 of the scraper 16 reduces tissue residue. After the clamping arm is closed in place, the rotating shaft squeezes the wedge block 11 to generate axial force, which is transmitted to the torque feedback ring 12 through the bidirectional lead screw 8. The pressure sensor 13 monitors the torque change in real time, and when the tissue thickness exceeds the preset value, the alarm 14 issues an alarm to prompt adjustment of the clamping force.

[0042] Then press to start the suture device body 1. The internal pushing mechanism pushes the suture staple 21 forward along the staple cartridge track. The staple body is vertically inserted into the tissue along the guide wing 22. When the suture staple 21 penetrates the full thickness of the skin and is exposed to the body temperature environment, the shape memory alloy material triggers the shape memory effect, and the annular groove 24 automatically contracts, causing the two ends of the suture staple 21 to bend inward to form a tighter closed structure.

Claims

1. An automatically closing antibacterial skin suture device, comprising a suture device body (1) and a suture cartridge (2) installed within the suture device body (1), characterized in that, The front end of the suture body (1) is provided with a clamping arm assembly, which includes a symmetrically distributed left clamping arm (4) and a right clamping arm (5). The left clamping arm (4) and the right clamping arm (5) are rotatably connected to the suture body (1) through a hinge (6). The suture body (1) is provided with a thickness adjustment mechanism corresponding to the clamping arm assembly. The thickness adjustment mechanism includes a bidirectional screw (8), which is rotatably connected to the suture body (1). A knob (10) is connected to the middle of the bidirectional screw (8) through a bevel gear assembly (9). The knob (10) is rotatably connected to the suture body (1). Two wedge blocks (11) are symmetrically threaded on the bidirectional screw (8). The wedge blocks (11) abut against the rotation shafts of the left clamping arm (4) and the right clamping arm (5). A torque feedback ring (12) is fitted on the bidirectional lead screw (8). A pressure sensor (13) is provided on the outer ring of the torque feedback ring (12). An alarm (14) is connected to the sewing machine body (1). The alarm (14) is electrically connected to the torque feedback ring (12).

2. The automatically closing antibacterial skin suture device according to claim 1, characterized in that, The left clamping arm (4) and the right clamping arm (5) are each provided with a tissue cleaning groove (15). A scraper (16) is slidably connected in the tissue cleaning groove (15). The scraper (16) is connected to the bottom surface of the tissue cleaning groove (15) through a return spring (17). The front end of the scraper (16) protrudes 0.5-1mm from the surface of the left clamping arm (4) and the right clamping arm (5).

3. The automatically closing antibacterial skin suture device according to claim 2, characterized in that, The scraper (16) has a hydrophobic coating (3) on its surface.

4. The automatically closing antibacterial skin suture device according to claim 3, characterized in that, The inner sides of the left clamping arm (4) and the right clamping arm (5) are provided with wavy anti-slip texture (18).

5. The automatically closing antibacterial skin suture device according to claim 4, characterized in that, The left clamping arm (4) and the right clamping arm (5) are both connected to an elastic pull-away band (19). The elastic pull-away band (19) is made of silicone material and has barbed protrusions on its surface.

6. The automatically closing antibacterial skin suture device according to claim 1, characterized in that, The bottom of the suture staple cartridge (2) is connected to an anti-stuck spring (20), the end of which is curved and contacts the tail of the suture staple (21).

7. A suture staple, characterized in that, The suture staple (21) is disposed in the suture staple magazine (2) according to any one of claims 1-6. The tail of the suture staple (21) is provided with a guide wing (22). The suture staple (21) is made of shape memory alloy. The middle part of the suture staple (21) is provided with an annular groove (24). The surface of the suture staple (21) is provided with an antibacterial coating (25).

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