Soft tissue suturing device

Abstract

The present application relates to the technical field of medical apparatus, more particularly to a soft tissue suturing device, comprising sequentially connected clip arm assembly, barrel and base assembly, the clip arm assembly is provided with a puncture groove, and a puncture piece is movably arranged in the puncture groove; the base assembly comprises a gun seat and a first driving mechanism movably connected to the gun seat, the puncture piece is connected with the first driving mechanism through a first transmission piece, and the first transmission piece is at least partially located in the barrel; the first driving mechanism comprises a base rotatably connected with the gun seat through a first rotating shaft, one end of the puncture piece is fixedly installed on the first transmission piece, the other end of the puncture piece can extend out of or retract into the clip arm assembly, and a first reset structure is connected between the base and the gun seat and is obliquely arranged. The soft tissue suturing device has the advantages of small size, good stability and certainty of puncture and suturing within a stroke, and good operation feeling.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, and more specifically, to a soft tissue suturing device. Background Technology

[0002] In recent years, endoscopic techniques have developed rapidly in the field of neurosurgery. Endoscopic sinus surgery can now remove the vast majority of lesions in the sellar region, especially pituitary adenomas, craniopharyngiomas, and tuberculum sellae meningiomas, with numerous high-quality resection cases. Compared to craniotomy, endoscopic surgery offers unparalleled anatomical access to the central skull base regions, including the pituitary fossa, tuberculum sellae, sphenoid plateau, suprasellar cistern, interpeduncular cistern, and floor of the three chambers. However, due to the opening of the skull base during surgery, the incidence of cerebrospinal fluid leakage and infection after endoscopic resection of subdural tumors is significantly higher than after craniotomy. The key to addressing cerebrospinal fluid leakage and intracranial infection lies in reconstructing the tightness of the skull base dura mater, specifically the tightness of the dural sutures.

[0003] The difficulty of endoscopic skull base suturing lies in: (1) the operating area is deep and the space is narrow, limiting the freedom of movement of instruments; (2) the operator manually holds a curved suture needle with a diameter of about 3mm to 10mm using a needle holder with a forceps-like tip, and sutures the dura mater through transsphenoidal surgery (TSS); (3) the distance between the operator's hand and the actual suturing site is more than ten centimeters, but the incision size is only 5mm to 20mm at most, which is very small. The sutures currently used are all large in size, making them difficult to use in the special operating environment of the nasal cavity; the stability and certainty of the puncture travel are not good, which will increase the learning cost of the operator and raise the experience requirements of the operator, thus restricting the promotion and application of transnasal endoscopic surgery. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as large size, poor stability and certainty, and to provide a soft tissue suturing device that is small in size, has good stability and certainty within the stroke of the puncture piece, and has a good operating feel.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A soft tissue suturing device is provided, comprising a clamping arm assembly, a cylinder, and a base assembly connected in sequence. The clamping arm assembly has a puncture groove, and a puncture member with a suture structure is movably disposed within the puncture groove. The base assembly includes a gun holder and a first driving mechanism movably connected to the gun holder. The puncture member is connected to the first driving mechanism via a first transmission member, the first transmission member being at least partially located within the cylinder. The first driving mechanism includes a base rotatably connected to the gun holder via a first rotating shaft. One end of the puncture member is fixedly mounted to the first transmission member, and the other end of the puncture member can extend or retract from the clamping arm assembly. An inclined first reset structure is connected between the base and the gun holder. One end of the first reset structure is rotatably disposed within the base, and the other end is rotatably disposed within the gun holder. The rotation axes of the two ends of the first reset structure are parallel.

[0007] The soft tissue suturing device of the present invention, when pressed, causes the base to rotate relative to the gun holder. A first transmission component drives the puncture component forward, extending the clamping arm assembly. Simultaneously, the puncture component passes through the soft tissue, carrying sutures through a suture-carrying structure. The surgeon can then tie a knot in the suture to complete the suturing. The two ends of the first reset structure rotate accordingly, with their rotation axes remaining parallel. During rotation, the base consistently compresses the first reset structure tangentially along the circumference centered on the first rotation axis. When the base is released, under the action of the first reset structure, the base rotates in the opposite direction to reset, and the puncture rod drives the puncture component back into the clamping arm assembly. The rotation drive of the base and the cooperation of the first reset structure ensure stable stroke of the first transmission component, enabling the use of a thinner first transmission component and significantly reducing the outer diameter of the cylinder. Because the base rotates relative to the gun holder, the puncture piece can be extended or retracted from the clamping arm assembly with a small stroke of the base. The clamping arm assembly has a puncture groove to guide the puncture piece to retract or extend from the clamping arm assembly, which simplifies the structure of the first transmission component and reduces the size of the clamping arm assembly and the cylinder. The first reset structure is inclined and its two ends can rotate with the base. The base always compresses the first reset structure tangentially along the circumference centered on the first axis of rotation, avoiding the first reset structure from being subjected to torsional force along the tangential of the compression direction during the compression process, which would cause torsional deformation and affect the rebound stability of the base and the doctor's operating feel.

[0008] Furthermore, the first reset structure includes a first connecting rod, a rotating rod seat, a connecting rod base, and a first reset component. The connecting rod seat is rotatably mounted on the base, and the rotating rod seat is rotatably mounted on the gun base. The end of the first connecting rod is fixedly mounted on the connecting rod seat, and the first connecting rod and the rotating rod seat are telescopically connected. The first reset component is sleeved on the first connecting rod, and both ends of the first reset component abut against the connecting rod seat and the rotating rod seat, respectively. When the base is gripped, the first connecting rod is driven to compress the first reset component. Due to the rotating rod seat, the compressive force of the base is always along the axial direction of the first reset component and will not be twisted or deformed due to forces in other directions, thus improving the grip feel and rebound stability of the base.

[0009] Furthermore, the rotating rod seat has a first rotating column on two opposite sides, and the rotating rod seat is rotatably mounted in the gun seat via the first rotating column; the rotating rod seat has a second rotating column on two opposite sides, and the connecting rod seat is rotatably mounted in the base via the second rotating column; the central axes of the first rotating column and the second rotating column are parallel. During the deformation of the first reset structure, the rotating rod seat and the connecting rod seat remain parallel, and the first reset structure is subjected to a compressive force along the axial direction of the first connecting rod.

[0010] Furthermore, a first limiting post is connected to the inner wall of the base, and a first limiting groove is provided on the gun holder. The first limiting post slides within the first limiting groove to guide and limit movement in the first direction. When the base rotates or slides relative to the gun holder, the first limiting post and the first limiting groove cooperate to limit the displacement of both the base and the gun holder in the first direction, thereby limiting the maximum forward movement and reset position of the base. The cooperation of the first limiting post and the first limiting groove also guides the relative movement of the base and the gun holder, ensuring that changes in their relative displacement in the first direction are stable.

[0011] Furthermore, a third limiting post is provided between the two opposing inner walls of the base. The axis of the third limiting post is parallel to the axis of the first rotating shaft. When the third limiting post abuts against the end face of the gun holder, it limits the rotation angle. The third limiting post limits the maximum rotation angle, allowing the operator to clearly feel that the puncture piece has extended to the maximum stroke of the clamping arm assembly, ensuring good operating feel and a certain degree of operational safety.

[0012] Furthermore, the first transmission component includes a puncture rod and a puncture seat. One end of the puncture rod is connected to the puncture member, and the other end of the puncture rod is connected to the puncture seat. The puncture seat is slidably disposed within the base. The puncture member is a flexible, easily deformable structure, the puncture rod is a rigid structure to maintain stability of the puncture member during its puncture stroke, and the puncture seat serves to fix and install it.

[0013] Furthermore, the outer side of the puncture seat is provided with a second limiting post, and the base is provided with a second limiting groove. The second limiting post slides within the second limiting groove to guide and limit movement in a second direction. An angle exists between the second direction and the first direction, and the guidance and limiting in the first and second directions ensure the certainty and stability of the puncture piece's stroke.

[0014] Furthermore, the suture structure of the puncture needle is an opening, which is a one-way release structure in the shape of an inverted auricle. When the puncture device punctures upwards, the suture is not easily dislodged and will puncture along with the puncture device. After puncturing the soft tissue, it will push open the clamping component until the opening exposes a certain distance from the palate; when the puncture device retracts along its original trajectory, the suture is easily released from the upper part of the opening of the puncture device.

[0015] Furthermore, the clamping arm assembly includes an upper jaw and a lower jaw that can rotate and open relative to each other via a second rotating shaft. The lower jaw is provided with a suture release groove communicating with the puncture groove, and the upper jaw is provided with a window area located above the puncture groove. A suture clamping assembly connected to the upper jaw is provided within the window area. The upper and lower jaws are mainly used to clamp soft tissue, preventing movement during soft tissue puncture and improving the success rate of puncture. The puncture device is inserted with the suture along it. Then, one end of the suture is fixed at the suture clamping assembly of the upper jaw, the puncture device is retracted along the original path, and the other end of the suture enters the suture release groove with the puncture groove. When the upper and lower jaws are opened, the suture moves from one side of the soft tissue to the other side, making the operation simple.

[0016] Furthermore, the upper jaw is connected to the second drive mechanism via a second transmission component. The first drive mechanism and the second drive mechanism are located on opposite sides of the gun base, making the opening and closing control of the upper and lower jaws and the extension and retraction control of the puncture component independent of each other, thus simplifying operation.

[0017] Furthermore, the first drive mechanism includes a trigger and a bearing seat. The trigger is rotatably connected to the gun holder, and the bearing seat is slidably connected to the gun holder. The trigger is provided with a fourth rotating shaft, and the bearing seat is provided with a first opening groove that can accommodate the fourth rotating shaft to enter and slide. The bearing seat slides smoothly along the axis of the cylinder, thereby driving the upper jaw to rotate and open smoothly, thus improving stability within the puncture stroke.

[0018] Furthermore, the suture clamping assembly includes a spring and a mounting member, with the spring connected to the upper jaw via the mounting member. Utilizing the deformation of the spring to clamp the suture between the spring and the wall surface within the window area simplifies the structural design of the suture clamping assembly and reduces its production cost.

[0019] Furthermore, the wire clamping assembly includes a cover plate, a fifth rotating shaft, and a torsion spring. The two ends of the fifth rotating shaft are respectively connected to two opposing inner walls of the window area. The cover plate is rotatably connected to the fifth rotating shaft, and the two free ends of the torsion spring abut against the cover plate and the upper jaw, respectively. The torsion spring's deformation capability enables the cover plate to perform the wire clamping function, resulting in a simple structure, easy installation, and convenient implementation.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The soft tissue suturing device of the present invention stably drives the movement of the first transmission member through the first driving mechanism and the first reset structure, thereby helping to reduce the volume of the clamping arm assembly and the cylinder and improving the accuracy of movement within the stroke; the puncture groove is used to guide the puncture member to retract or extend from the clamping arm assembly, which can simplify the structure of the first transmission member and thus reduce the size of the clamping arm assembly and the cylinder.

[0022] The soft tissue suture device of the present invention controls the extension and retraction of the puncture piece, as well as its guidance and limitation in the first and second directions, through a first driving mechanism. It can accurately control the movement of the puncture piece remotely and is suitable for applications involving transnasal skull base suturing.

[0023] In the soft tissue suture device of the present invention, when the base is pressed, the force direction of the first reset structure will always be along the axial direction of the first reset structure, and the first reset structure will not bend or twist, thereby greatly improving the rebound stability of the base and also improving the stability of the movement of the puncture piece.

[0024] The soft tissue suturing device of the present invention uses a puncture member with a suture structure instead of a suture needle. The puncture member carries the suture during puncture. One end of the suture is fixed at the maxillary suture clamping assembly, and the other end of the suture enters the suture release groove with the puncture groove. When the maxilla and mandible are opened, the suture moves from one side of the soft tissue to the other side without the need for additional tools. This greatly simplifies the operation for doctors, reduces the learning cost, and shortens the operation time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a soft tissue suture device.

[0026] Figure 2 A three-dimensional view of a soft tissue suture device;

[0027] Figure 3 This is a 3D view of the base assembly;

[0028] Figure 4 This is a structural diagram of the base assembly;

[0029] Figure 5 A structural schematic diagram of the base assembly from another perspective;

[0030] Figure 6 This is a three-dimensional view of the first reset structure;

[0031] Figure 7 This is a schematic diagram of the puncture device.

[0032] Figure 8 This is a 3D view of the clamping arm assembly;

[0033] Figure 9 This is a schematic diagram of the clamping arm assembly;

[0034] Figure 10 This is a schematic diagram of a structure including a wire clamping assembly;

[0035] Figure 11 A schematic diagram of a clamping arm assembly for use when the puncture device extends out of the upper jaw for puncture;

[0036] Figure 12 This is a schematic diagram of a structure that includes another wire clamping component;

[0037] Figure 13 A schematic diagram of another clamping arm assembly for puncture when the puncture device extends out of the upper jaw for puncture;

[0038] Figure 14 A diagram illustrating the insertion of sutures into the opening where the upper jaw is opened relative to the lower jaw;

[0039] Figure 15 A schematic diagram showing the retraction of the suture as the puncture device retracts from the upper jaw relative to the lower jaw.

[0040] Figure 16 This is a schematic diagram showing the upper jaw closing and clamping soft tissues relative to the lower jaw;

[0041] Figure 17 This is a schematic diagram showing the upper jaw closing relative to the lower jaw, and the puncture device moving the suture forward for puncture.

[0042] Figure 18 A schematic diagram illustrating how the upper jaw opens relative to the lower jaw, causing the suture to pass through the soft tissue;

[0043] In the attached diagram: 100, clamping arm assembly; 110, second rotating shaft; 120, upper jaw; 121, first connecting arm; 122, window opening area; 123, first mounting groove; 124, second mounting groove; 125, connecting slot hole; 126, connector; 130, lower jaw; 131, lower jaw portion; 132, first connecting portion; 133, second connecting portion; 134, connecting groove; 135, piercing groove; 136, wire release groove; 137, chamfer; 200, cylinder; 300, base assembly; 310, gun base; 311, first opening; 312, first limiting groove; 313, sliding groove; 320, first drive mechanism; 321, base; 322, second opening groove; 323, first limiting post; 324, second limiting groove; 325, third limiting post; 330, first rotating shaft; 340. First transmission component; 341. Puncture rod; 342. Puncture seat; 343. Second limiting post; 350. First reset structure; 351. First connecting rod; 352. Rotating rod seat; 353. Connecting rod seat; 354. First reset component; 355. First rotating column; 356. Second rotating column; 360. Second drive mechanism; 361. Trigger; 362. Shaft seat; 363. Third rotating shaft; 364. Second connecting arm; 365. Slider; 366. Fourth rotating shaft; 367. First opening slot; 370. Second reset structure; 380. Second transmission component; 400. Puncture component; 410. Opening; 500. Thread clamping assembly; 510. Spring; 520. Mounting component; 530. Cover plate; 540. Fifth rotating shaft; 550. Torsion spring; 600. Suture; 700. Soft tissue. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0045] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0046] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0047] Example 1

[0048] This embodiment is a first embodiment of a soft tissue suturing device, including a clamping arm assembly 100, a cylindrical body 200, a base assembly 300, and a puncture member 400. The clamping arm assembly 100, the cylindrical body 200, and the base assembly 300 are connected sequentially. The clamping arm assembly 100 is provided with a puncture groove 135, and the puncture member 400 is movably disposed within the puncture groove 135, with an opening 410 at the top of the puncture member 400. The base assembly 300 includes a gun base 310 and a first driving mechanism 32 movably connected to the gun base 310. 0. The puncture member 400 is connected to the first drive mechanism 320 via the first transmission member 340, which is at least partially located within the cylinder 200. The first drive mechanism 320 includes a base 321 rotatably connected to the gun holder 310 via a first rotating shaft 330. One end of the puncture member 400 is fixedly mounted to the first transmission member 340, and the other end of the puncture member 400 can extend or retract from the clamping arm assembly 100. An inclined first reset structure 350 is connected between the base 321 and the gun holder 310. Figures 1 to 6 As shown.

[0049] In this embodiment, pressing the base 321 causes it to rotate relative to the gun holder 310. The first transmission component 340 drives the puncture member 400 to move forward and extend the clamping arm assembly 100. The puncture member 400 passes through the soft tissue 700 while simultaneously passing through the suture 600 in the opening 410. The surgeon can tie a knot in the suture 600 that has passed through the soft tissue 700 to complete the suturing. During the rotation, the base 321 compresses the first reset structure 350 tangentially along the circumference centered on the first axis 330. When the base 321 is released, under the action of the first reset structure 350, the base 321 rotates in the opposite direction to reset, and the puncture rod 341 drives the puncture member 400 to retract into the clamping arm assembly 100.

[0050] In this embodiment, one end of the base 321 is provided with a second opening groove 322, and the gun holder 310 is rotatably disposed in the opening of the second opening groove 322. When the base 321 is pressed, the base 321 can rotate so that part of the gun holder 310 is retracted into the gun holder 310, thereby reducing the overall size of the device. Figure 3 As shown. The first reset structure 350 of this embodiment includes a first connecting rod 351, a rotating rod seat 352, a connecting rod seat 353, and a first reset member 354. The connecting rod seat 353 is rotatably mounted on the base 321, and the rotating rod seat 352 is rotatably mounted on the gun seat 310. The end of the first connecting rod 351 is fixedly mounted on the connecting rod seat 353, and the first connecting rod 351 and the rotating rod seat 352 are telescopically connected. The first reset member 354 is sleeved on the first connecting rod 351, and both ends of the first reset member 354 abut against the connecting rod seat 353 and the rotating rod seat 352, respectively. Figure 6 As shown.

[0051] Specifically, the rotating rod seat 352 has a first rotating column 355 on two opposite sides, and the rotating rod seat 352 is rotatably mounted in the gun seat 310 via the first rotating column 355; the connecting rod seat 353 has a second rotating column 356 on two opposite sides, and the connecting rod seat 353 is rotatably mounted in the base 321 via the second rotating column 356; the central axes of the first rotating column 355 and the second rotating column 356 are parallel, the first connecting rod 351 and the connecting rod seat 353 can be an integral structure, the rotating rod seat 352 has an opening, the first connecting rod 351 passes through the opening and is movably telescopically connected to the rotating rod seat 352, and under the action of the first connecting rod 351, the rotating rod seat 352 and the connecting rod seat 353 always remain parallel, such as Figure 6 As shown; in addition, the dimensions of the rotating rod seat 352 and the connecting rod seat 353 are both larger than the diameter of the first connecting rod 351. The first reset member 354 is a spring. When the spring is sleeved on the first connecting rod 351, its two ends abut against the connecting rod seat 353 and the rotating rod seat 352 respectively, and it will not fall off the first connecting rod 351. The first rotating shaft 330 is located at the bottom of the gun seat 310, so that when the base 321 rotates a small angle relative to the gun seat 310, the top of the base 321 and the gun seat 310 will produce a large displacement. The first rotating column 355 is located to the side and below the second rotating column 356, and the first rotating column 355 is located in front of the second rotating column 356 (the position of the clamping arm assembly 100 is in front), so that the compressive force of the base 321 is always along the axial direction of the first reset structure 350, and will not be twisted or deformed due to the component force in other directions, which can improve the grip of the base 321 and the rebound stability of the base 321.

[0052] To further reduce the size of the clamping arm assembly 100 and the cylinder 200, this embodiment uses a simple first transmission component 340 as much as possible. Specifically, in this embodiment, the first transmission component 340 includes a puncture rod 341 and a puncture seat 342. One end of the puncture rod 341 is connected to the puncture member 400, and the other end of the puncture rod 341 is connected to the puncture seat 342. The puncture seat 342 is slidably disposed within the base 321, such as... Figure 1 As shown. The puncture member 400 is a thin, flexible blade. The puncture groove 135 can be specifically an arc-shaped groove to guide the extension and retraction of the blade. The gun holder 310 has a first opening 311 on its wall near the base 321 to allow the puncture rod 341 to pass through. The puncture rod 341 is a rigid structure. The first opening 311 guides the movement of the puncture rod 341, improving the smoothness of its movement. Figure 4 As shown.

[0053] Furthermore, to further improve the accuracy and stability of the puncture member 400 within its puncture stroke, thereby improving the operational feel, in this embodiment, a first limiting structure is provided in the first direction. This first limiting structure guides and limits the movement of the base 321 and the gun holder 310 in the first direction. A second limiting structure is provided in the second direction, guiding and limiting the movement of the first transmission member 340 and the base 321 in the second direction. An angle exists between the first and second directions. Preferably, the first direction is parallel to the axis of the cylinder 200, and the second direction is perpendicular to the axis of the cylinder 200. Both the first and second limiting structures have two limiting positions, corresponding to the maximum and minimum stroke positions of the puncture member 400, respectively.

[0054] Specifically, a first limiting post 323 is connected to the inner wall of the base 321, and a first limiting groove 312 is provided on the gun holder 310. The first limiting post 323 slides within the first limiting groove 312 to guide and limit movement in the first direction. When the base 321 rotates or slides relative to the gun holder 310, the first limiting post 323 and the first limiting groove 312 cooperate to limit the displacement of the base 321 and the gun holder 310 in the first direction, thereby limiting the maximum forward movement and reset position of the base 321; furthermore, the cooperation of the first limiting post 323 and the first limiting groove 312 also guides the relative movement of the base 321 and the gun holder 310, ensuring that the change in relative displacement in the first direction is stable. Figure 4 As shown. It should be noted that the structure of the first limiting groove 312 and the first limiting post 323 in this embodiment is the first limiting structure of the present invention. This is a preferred option for ease of processing and simplification of the structure, and is not intended to limit the present invention. In the present invention, the positions of the first limiting groove 312 and the first limiting post 323 can be interchanged as needed.

[0055] The outer side of the puncture seat 342 is provided with a second limiting post 343, and the base 321 is provided with a second limiting groove 324. The second limiting post 343 slides within the second limiting groove 324 to guide and limit in a second direction, such as... Figure 3 As shown. An angle exists between the second direction and the first direction, preferably a right angle. The guiding and limiting in the first and second directions ensures the certainty and stability of the puncture member's stroke 400. It should be noted that in this embodiment, the structure of the second limiting groove 324 and the second limiting post 343 is used as the second limiting structure of the present invention. This is a preferred option for ease of processing and structural simplification, and is not intended to limit the invention. In this invention, the positions of the second limiting groove 324 and the second limiting post 343 can be interchanged as needed.

[0056] This embodiment may further include a third limiting structure to restrict the rotation angle of the base 321 relative to the gun holder 310. Specifically, in this embodiment, the third limiting structure is a third limiting post 325 disposed within the base 321. The two ends of the third limiting post 325 are disposed between two opposing inner wall surfaces of the base 321. The axis of the third limiting post 325 is parallel to the axis of the first rotating shaft 330. When the third limiting post 325 abuts against the outer wall surface of the gun holder 310, the base 321 can no longer continue to rotate relative to the gun holder 310. Figure 3 As shown. The third limiting structure provides a clear tactile feedback, indicating to the operator that the puncture piece 400 has extended to the maximum stroke of the clamping arm assembly 100, ensuring good tactile feedback and a certain level of operational safety.

[0057] To achieve unidirectional release of the suture 600 within the puncture device 400, ensuring the stability and accuracy of the puncture and suture 600 process, in this embodiment, the suture structure is an opening 410, which is an inverted auricle-shaped unidirectional release structure, such as... Figure 7 As shown. When the puncture device 400 punctures upward, the suture 600 is not easy to come out. It will puncture along with the puncture device 400. After puncturing the soft tissue 700, it will push open the clamping component until the opening 410 exposes a certain distance from the palate 120. When the puncture device 400 retracts along the original trajectory, the suture 600 can be easily released from the upper part of the opening 410 of the puncture device 400.

[0058] The specific implementation steps of this embodiment are as follows:

[0059] Pressing the base 321 causes it to rotate relative to the gun holder 310. The first transmission component 340 drives the piercing component 400 to move forward and extend the clamping arm assembly 100. The piercing component 400 passes through the soft tissue 700 while simultaneously passing through the soft tissue 700 with the suture 600 in the opening 410. This continues until the first limiting structure restricts the X-direction (parallel to the axis of the cylinder 200) displacement of the gun holder 310, the second limiting structure restricts the Y-direction (perpendicular to the axis of the cylinder 200) displacement of the gun holder 310, and the third limiting structure restricts the maximum angle of rotation of the gun holder 310. At this point, the piercing component 400 extends the clamping arm assembly 100 to its maximum stroke.

[0060] After the puncture is completed, the base 321 is released. Under the action of the first reset structure 350, the base 321 rotates relative to the gun seat 310. The first transmission component 340 drives the puncture component 400 to retract into the clamping arm assembly 100 until the first limiting structure restricts the X-direction (parallel to the axis of the cylinder 200) displacement of the gun seat 310 and the second limiting structure restricts the Y-direction (perpendicular to the axis of the cylinder 200) displacement of the gun seat 310. At this time, the stroke of the puncture component 400 extending out of the clamping arm assembly 100 is minimal, and the puncture component 400 is completely retracted into the clamping arm assembly 100.

[0061] Example 2

[0062] This embodiment is a second embodiment of the soft tissue suturing device of the present invention. This embodiment is similar to the first embodiment, except that the clamping arm assembly 100 includes an upper jaw 120 and a lower jaw 130 that can rotate and open relative to each other via a second rotating shaft 110. The lower jaw 130 is provided with a suture delivery groove 136 communicating with a puncture groove 135. The upper jaw 120 is provided with a window area 122 located above the puncture groove 135. A suture clamping assembly 500 connected to the upper jaw 120 is provided within the window area 122. Figures 8 to 13 As shown.

[0063] In this embodiment, the upper and lower jaws are mainly used to clamp the soft tissue 700, so that it does not move when puncturing the soft tissue 700, thus improving the success rate of puncture. When the puncture device 400 punctures, it carries the suture 600. The puncture device 400 is retracted along the same path. Then, one end of the suture 600 is fixed at the suture clamping assembly 500 of the upper jaw 120. When the upper jaw 120 and the lower jaw 130 are opened, the suture 600 moves from one side of the soft tissue 700 to the other side, making the operation simple.

[0064] Both the upper jaw 120 and the lower jaw 130 adopt a contour-following design. The upper jaw 120 is designed to resemble the index finger, and the lower jaw 130 is designed to resemble the thumb. The closing process of the upper and lower jaws is similar to a person's thumb and index finger grasping an object. The upper jaw 120 and the lower jaw 130 also adopt a rounded and converging design, with the cross-sectional dimensions gradually increasing from front to back, making it easier for the soft tissue suturing device to advance and operate in narrow and deep spaces. The lower jaw 130 is curved, which makes it easier to hook up the soft tissue 700 in narrow and deep spaces, facilitating the subsequent clamping of the upper jaw 120 and the lower jaw 130. The central angle of the curve is preferably 90°. To facilitate the processing and shaping of the upper jaw 120, the upper jaw 120 in this embodiment can be basically set as a flat structure. To facilitate the clamping of the upper jaw 120 and the lower jaw 130, the lower jaw 130 in this embodiment is provided with a planar clamping surface, which cooperates with the lower surface of the upper jaw 120 to perform a clamping function.

[0065] The lower jaw 130 includes a lower jaw portion 131, a first connecting portion 132, and a second connecting portion 133 arranged sequentially. The lower jaw portion 131, the first connecting portion 132, and the second connecting portion 133 are integrally formed. The first connecting portion 132 is used for rotatable connection with the upper jaw 120, and the second connecting portion 133 is used for connection with the cylindrical body 200. The main bodies of the first connecting portion 132 and the second connecting portion 133 are coaxially arranged and hollow cylindrical structures. The diameter of the first connecting portion 132 is larger than the diameter of the second connecting portion 133, such that the outer diameter of the first connecting portion 132 of the sewing device is equal to the outer diameter of the cylindrical body 200. Figure 8 , Figure 9 As shown. To facilitate the connection between the upper jaw 120 and the first connecting part 132, the top of the first connecting part 132 is provided with a connecting groove 134. The top surface of the connecting groove 134 is a smoothly transitioned arc surface. The end of the upper jaw 120 is provided with two first connecting arms 121. The two first connecting arms 121 are located inside the connecting groove 134 and are rotatably connected to the first connecting part 132 through the second rotating shaft 110.

[0066] The puncture groove 135 is an arc-shaped groove, and the curvature of the puncture groove 135 is equal to or close to the curvature of the lower jaw 131. The puncture member 400 can slide within the arc-shaped groove. The arc-shaped groove is designed with a large bending radius and low resistance. On the one hand, the puncture member 400 is easier to pass through the arc-shaped groove, and on the other hand, the arc-shaped groove also has a guiding function, guiding the puncture member 400 to the opening suture clamping assembly 500. The puncture member 400 passes through the puncture groove 135 and then passes through the upper jaw 120 to open the suture clamping assembly 500, exposing the upper jaw 120. In this embodiment, the suture release groove 136 is located in the middle of the lower jaw 131 and is arranged circumferentially along the lower jaw 131. The width of the suture release groove 136 can be adapted to different sizes according to the size of the suture 600. The puncture groove 135 and the suture release groove 136 are cross-shaped in the horizontal cross section. The size of the puncture groove 135 can be adapted to different sizes according to the size of the puncture member 400. To facilitate easier wire feeding, this embodiment provides a chamfer 137 at one end of the wire feeding groove 136 and near the lower jaw 130, thereby forming a wire feeding inlet with a gradually decreasing opening size.

[0067] When the suturing device of this embodiment is used for transnasal skull base repair surgery, due to the very narrow space (the endoscope is only 10mm in diameter), the space at the surgical site is relatively larger, with approximately 20mm of space available for the surgeon's operation. The maximum overall outer diameter of the maxilla 120 and mandible 130 in this embodiment is 5mm, and the maximum distance between the maxilla and mandible after opening is set to 12mm. The shorter puncture length 400, smaller opening angle, and finer outer diameter are all more suitable for skull base suturing.

[0068] To achieve relative opening and closing of the upper jaw 120 and lower jaw 130 at the proximal end of the suturing device, this embodiment also includes a connecting slot 125 and a connector 126. The connecting slot 125 is formed in the upper jaw 120, and the connector 126 is slidably or rotatably disposed in the connecting slot 125. The base assembly 300 also includes a second drive mechanism 360 movably connected to the gun base 310. The connector 126 is connected to the second drive mechanism 360 through a second transmission member 380, and the second transmission member 380 is at least partially located within the cylinder 200.

[0069] In one implementation, the connecting slot 125 can be configured as a round hole, with the connector 126 rotatably positioned within it. This allows for smoother opening and closing of the upper jaw 120 and enables continuous application of clamping force. Figure 8 , 9As shown. In another embodiment, the connecting slot 125 can be configured as an arcuate groove, with the connector 126 sliding within it. This allows for the opening and closing of the sewing device within a limited space, significantly saving structural space. Furthermore, the opening and closing angles of the upper jaw 120 and lower jaw 130 can be determined based on the start and end points of the arcuate groove, thus controlling the opening and closing angles. Figure 10 , 12 As shown.

[0070] In this embodiment, the second drive mechanism 360 includes a trigger 361 and a bearing 362. The trigger 361 is rotatably connected to the front side of the gun base 310 via a third rotating shaft 363, and a second reset structure 370 is connected between the trigger 361 and the gun base 310. The bearing 362 is movably connected to the trigger 361 and slidably connected to the gun base 310. The second transmission component 380 is a second connecting rod, one end of which is fixedly connected to the bearing 362. Figure 4 As shown.

[0071] Specifically, the trigger 361 has two sets of second connecting arms 364 on its two opposite sides at the top. The second connecting arms 364 are fixedly connected to the third rotating shaft 363. The gun base 310 has a through hole, and the third rotating shaft 363 is rotatably connected to the through hole. The bearing seat 362 has sliders 365 on its two opposite surfaces. The gun base 310 has a sliding groove 313, and the sliders 365 are slidably connected to the sliding groove 313. The bearing seat 362 can only move left and right. In this way, when the trigger 361 is pulled, the stroke is utilized more rationally, and there is no loss of stroke due to play in the up and down direction, so that the clamping of the upper and lower jaws is more in line with the design trajectory. A fourth rotating shaft 366 is also provided between the two sets of second connecting arms 364 of the trigger 361. The axis of the fourth rotating shaft 366 is parallel to the axis of the third rotating shaft 363. The bottom of the bearing seat 362 has a first opening groove 367, and the fourth rotating shaft 366 is located in the first opening groove 367. In this embodiment, when the trigger 361 is rotated, due to the limiting effect of the slider 365 and the slide groove 313, the bearing seat 362 can only move horizontally relative to the gun seat 310. The horizontal movement of the bearing seat 362 drives the second connecting rod to move horizontally, thereby driving the upper jaw 120 to open and close. One end of the first opening groove 367 is open, so that when the trigger 361 is pressed, the longitudinal displacement of the fourth rotating shaft 366 will not affect the horizontal movement of the bearing seat 362. Figure 4 , 5 As shown.

[0072] In one embodiment, a mounting slot is provided on the gun holder 310, and another mounting slot is provided on the trigger 361. The second reset structure 370 is a second spring, with both ends of the second spring located in the two mounting slots respectively. The axes of the two mounting slots and the second spring coincide, and the axes of the three are all tangents to the circumference of a circle with the axis of the third rotating shaft 363 as the center. This avoids the second spring from being subjected to torsional force along the tangent of the compression direction during compression, thus preventing torsional deformation and affecting the rebound stability of the trigger 361 and the doctor's operating feel.

[0073] In another implementation, a torsion spring is used as the second reset structure 370. The torsion spring is sleeved on the outer periphery of the third rotating shaft 363, and the two free ends of the torsion spring respectively abut against or connect to the inner wall surfaces of the trigger 361 and the gun mount 310, as shown below. Figure 4 As shown. When the trigger 361 is turned, the torsion spring twists, causing uneven force and cancellation that affects the feel, and it is easy to install.

[0074] To facilitate the removal of the suture 600 during puncture, in this embodiment, the suture clamping assembly 500 includes a spring piece 510 and / or an elastic element. When the suture 600 passes through the clamping seam formed between the suture clamping assembly 500 and the inner wall of the window area 122, the spring piece 510 and / or the elastic element deforms to clamp the suture 600 within the clamping seam, allowing it to be pulled out directly without the need for additional tools. This greatly simplifies the doctor's operation and reduces the learning cost for the doctor. Figures 10 to 13 As shown.

[0075] Specifically, the thread clamping assembly 500 in this embodiment may include a spring piece 510. When the thread 600 passes through the thread clamping seam, the elastic deformation of the spring piece 510 directly clamps the thread 600 within the thread clamping seam. Alternatively, the thread clamping assembly 500 in this embodiment may not include the spring piece 510, but only an elastic element. The deformation of the elastic element indirectly clamps the thread 600 within the thread clamping seam using the cover plate 530 driven by the elastic element. The thread clamping assembly 500 in this embodiment may also include both the spring piece 510 and the elastic element, using the deformation of both the elastic element and the spring piece 510 to clamp the thread 600 within the thread clamping seam. Whether the thread 600 is clamped using the deformation of the spring piece 510 or the deformation of the elastic element, the structural design of the thread clamping assembly 500 can be simplified, and the production cost of the thread clamping assembly 500 can be reduced.

[0076] The specific implementation steps of this embodiment (taking dura mater suturing as an example) are as follows:

[0077] With the upper jaw 120 open relative to the lower jaw 130, first press the base 321 to expose the puncture piece 400 above the lower jaw 130, then insert the suture 600 into the opening 410 of the puncture piece 400. Figure 14As shown; then release the base 321 to allow the piercing element 400 to retract along the piercing groove 135. At this time, the suture 600 will enter the suture release groove 136 of the jaw 130 due to the retraction of the piercing element 400. Since the suture release groove 136 just seals the exit at the opening 410 of the piercing element 400, the suture 600 cannot detach from the suture release groove 136. Figure 15 As shown.

[0078] The suture device with sutures 600 is retracted through the endoscope into the nasal cavity to reach the base of the skull. The dura mater is hooked up using the jaw 130. Trigger 361 is pressed to close the jaws and clamp the dura mater. Next, base 321 is pressed, which drives the puncture element 400 until it protrudes from the upper jaw 120, allowing for dura mater puncture. At this point, base 321 reaches the end of its compression stroke. Figure 16 As shown. After the dura mater is punctured, the base 321 is released. At this time, the puncture component 400 retracts along its original path. The suture 600 at the opening 410 of the puncture component 400 is clamped by the suture clamping assembly 500 and remains in the upper jaw 120. The puncture component 400 will then slowly retract into the lower jaw 130, as shown. Figure 17 As shown.

[0079] Next, release trigger 361. At this point, the upper jaw 120 opens relative to the lower jaw 130. The suture 600 is pulled out a distance due to the opening of the upper jaw 120. Then, release the dura mater, retract the stapler, and bring the suture 600 out of the endoscope. Figure 18 As shown. At this point, one suture point of the dura mater is closed. Next, repeat the above suture placement steps to close another suture point on the other dura mater. After closing both suture points, remove the suture device, hold both ends of the suture 600, tie a knot outside the body, push it near the dura mater using a knot feeder, tighten it, and then cut off the excess suture 600. At this point, the suturing of one section of the dura mater is complete.

[0080] The suture device of this embodiment can also be used to achieve continuous suturing at multiple sites. The specific steps are as follows: When suturing the first suture point, tie a knot on one end of the suture 600 outside the body and send it to the end near the dura mater. Do not tie a knot on the other end of the suture 600. Perform the suture release operation of the suture device, and then suture another piece of dura mater. Repeat the suturing operation of the suture device, and suture multiple times at the intersection of the two pieces of dura mater until a loop is sutured to achieve a closed loop. Then tie a knot on the outside of the suture 600 and send it to the end near the dura mater, thereby achieving continuous suturing at multiple sites and greatly improving the doctor's suturing efficiency.

[0081] Example 3

[0082] This embodiment is the second embodiment of the soft tissue suturing device. This embodiment is similar to the first embodiment, except that the specific arrangement of the suture clamping assembly 500 is different.

[0083] In one embodiment, the suture clamping assembly 500 includes a spring 510 and a mounting member 520, with the spring 510 connected to the upper jaw 120 via the mounting member 520. By utilizing the deformation of the spring 510 to clamp the suture 600 between the spring 510 and the inner wall of the window area 122, the structural design of the suture clamping assembly 500 can be simplified, and the production cost of the suture clamping assembly 500 can be reduced.

[0084] Specifically, the upper jaw 120 has a first mounting groove 123 communicating with the window area 122, and the spring piece 510 is installed in the first mounting groove 123; the upper jaw 120 has a second mounting groove 124 communicating with the first mounting groove 123, and the mounting member 520 is installed in the second mounting groove 124, and the mounting member 520 abuts or connects with the spring piece 510, such as... Figure 10 , 11 As shown.

[0085] The first mounting groove 123 is a through groove connecting the left and right opposite sides. The spring piece 510 is a "T"-shaped spring piece 510, which slides within the first mounting groove 123. The dimensions of the spring piece 510 and the upper jaw 120 are designed such that when the spring piece 510 slides until it abuts against the wall of the first mounting groove 123, the end of the spring piece 510 abuts against the inner wall of the opening area 122. This two abutments achieve the initial installation of the spring piece 510. Position the device; then insert the mounting piece 520 into the second mounting groove 124, which may be a threaded hole and the mounting piece 520 may be a set screw; screw the set screw into the second mounting groove 124 and press the spring piece 510 against the groove wall of the first mounting groove 123; or a mounting hole may be made on the spring piece 510, and the end of the set screw may pass through the mounting hole and abut against the groove wall of the first mounting groove 123, while pressing the spring piece 510 against the groove wall of the first mounting groove 123.

[0086] In addition, in this embodiment, an acute angle is formed between the spring piece 510 and the center surface of the window area 122, so that the edge of the spring piece 510 abuts against the wall surface of the window area 122; the spring piece 510 is subjected to the force of the top screw, and the spring piece 510 exerts downward pressure on the edge of the window area 122. After the suture 600 passes through the seam with the piercing member 400, it will stay in the seam due to the downward pressure of the spring piece 510, and the piercing member 400 will retract along the original path.

[0087] In this embodiment, a puncture device 400 with a suture 600 is used to puncture soft tissue 700 through the suture seam. After the soft tissue 700 is punctured, the puncture device 400 is retracted along its original path. During the retraction of the puncture device 400, the spring 510 is subjected to the force of the set screw. The spring 510 exerts downward pressure on the edge of the window area 122. After the puncture device 400 passes through the suture seam, the suture 600 will remain on the palate 120 due to the downward pressure of the spring 510. The scheme of using the spring 510 combined with the set screw is simple in structure and easy to install. It allows the puncture device 400 to pass through the suture seam more easily, reduces the wear of the tip of the puncture device 400, and the spring 510 can also provide good downward pressure and have a good clamping force on the suture 600.

[0088] In another implementation, the thread clamping assembly 500 includes a cover plate 530, a fifth rotating shaft 540, and an elastic element. The two ends of the fifth rotating shaft 540 are respectively connected to the two opposing inner walls of the window area 122. The cover plate 530 is rotatably connected to the fifth rotating shaft 540. The elastic element is a torsion spring, with its two free ends abutting against the cover plate 530 and the upper jaw 120, respectively. An acute angle is formed between the cover plate 530 and the center surface of the window area 122, causing the edge of the spring piece 510 to abut against the wall surface of the window area 122. The torsion spring provides a certain downward pressure, and the thread 600 is clamped within the thread clamping seam by the cover plate 530. Figure 12 , 13 As shown.

[0089] To facilitate the installation of the torsion spring and fully convert the deformation capacity of the torsion spring into the downward pressure of the cover plate 530, in this embodiment, the upper jaw 120 is provided with a mounting groove, and the cover plate 530 is provided with another mounting groove. The two free ends of the torsion spring are respectively located in the mounting groove and abut against the groove wall of the mounting groove. The cover plate 530 is provided with another mounting groove, which is used to install the torsion spring. The mounting grooves are interconnected to form a groove with an inverted "Z" shape.

[0090] In this embodiment, a puncture tool 400 with a suture 600 is used to puncture the soft tissue 700 through the seam. After the soft tissue 700 is punctured, the puncture tool 400 is retracted along the original path. During the retraction of the puncture tool 400, the cover plate 530 exerts downward pressure on the edge of the window area 122 under the action of the torsion spring. After the suture 600 passes through the seam with the puncture tool 400, it will remain in the seam due to the downward pressure of the cover plate 530.

[0091] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0092] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A soft tissue suturing device, comprising a clamping arm assembly (100), a cylinder (200), and a base assembly (300) connected in sequence, characterized in that, The clamping arm assembly (100) is provided with a puncture groove (135), and a puncture member (400) with a wire structure is movably disposed in the puncture groove (135); the base assembly (300) includes a gun base (310) and a first drive mechanism (320) rotatably connected to the gun base (310), the puncture member (400) is connected to the first drive mechanism (320) through a first transmission member (340), and the first transmission member (340) is at least partially located inside the cylinder (200); the first drive mechanism (320) includes a first rotating shaft (330) connected to the cylinder (200) via the first drive mechanism (320). The gun holder (310) is rotatably connected to the base (321). One end of the piercing member (400) is fixedly installed on the first transmission member (340). The other end of the piercing member (400) can extend or retract from the clamping arm assembly (100). An inclined first reset structure (350) is connected between the base (321) and the gun holder (310). One end of the first reset structure (350) is rotatably disposed in the base (321), and the other end is rotatably disposed in the gun holder (310). The rotation axes of the two ends of the first reset structure (350) are parallel.

2. The soft tissue suturing device according to claim 1, characterized in that, The first reset structure (350) includes a first connecting rod (351), a rotating rod seat (352), a connecting rod seat (353), and a first reset member (354). The connecting rod seat (353) is rotatably mounted on the base (321), and the rotating rod seat (352) is rotatably mounted on the gun seat (310). The end of the first connecting rod (351) is fixedly mounted on the connecting rod seat (353), and the first connecting rod (351) and the rotating rod seat (352) are telescopically connected. The first reset member (354) is sleeved on the first connecting rod (351), and the two ends of the first reset member (354) abut against the connecting rod seat (353) and the rotating rod seat (352), respectively.

3. The soft tissue suturing device according to claim 2, characterized in that, The rotating rod seat (352) has a first rotating column (355) on two opposite sides, and the rotating rod seat (352) is rotatably disposed in the gun seat (310) through the first rotating column (355); the rotating rod seat (352) has a second rotating column (356) on two opposite sides, and the connecting rod seat (353) is rotatably disposed in the base (321) through the second rotating column (356); the central axes of the first rotating column (355) and the second rotating column (356) are parallel.

4. The soft tissue suturing device according to claim 1, characterized in that, The inner wall of the base (321) is connected to a first limiting post (323), and the gun seat (310) is provided with a first limiting groove (312). The first limiting post (323) slides in the first limiting groove (312) to guide and limit in the first direction.

5. The soft tissue suturing device according to claim 1, characterized in that, A third limiting post (325) is provided between the two opposing inner walls of the base (321). The axis of the third limiting post (325) is parallel to the axis of the first rotating shaft (330). When the third limiting post (325) abuts against the end face of the gun seat (310), it limits the rotation angle.

6. The soft tissue suturing device according to claim 1, characterized in that, The first transmission component (340) includes a puncture rod (341) and a puncture seat (342). One end of the puncture rod (341) is connected to the puncture component (400), and the other end of the puncture rod (341) is connected to the puncture seat (342). The puncture seat (342) is slidably disposed in the base (321).

7. The soft tissue suturing device according to claim 6, characterized in that, The outer side of the puncture seat (342) is provided with a second limiting post (343), and the base is provided with a second limiting groove (324). The second limiting post (343) slides in the second limiting groove (324) to guide and limit in the second direction.

8. The soft tissue suturing device according to claim 1, characterized in that, The puncture member (400) has a wire structure with an opening (410), which is a one-way release structure in the shape of an inverted auricle.

9. The soft tissue suturing device according to any one of claims 1 to 8, characterized in that, The clamping arm assembly (100) includes an upper jaw (120) and a lower jaw (130) that can rotate and open relative to each other via a second rotating shaft (110). The lower jaw (130) is provided with a wire release groove (136) that communicates with the puncture groove (135). The upper jaw (120) is provided with a window area (122) located above the puncture groove (135). The window area (122) is provided with a wire clamping assembly (500) connected to the upper jaw (120).

10. The soft tissue suturing device according to claim 9, characterized in that, The upper jaw (120) is connected to the second drive mechanism (360) via the second transmission member (380), and the first drive mechanism (320) and the second drive mechanism (360) are located on opposite sides of the gun base (310).

11. The soft tissue suturing device according to claim 10, characterized in that, The first drive mechanism (320) includes a trigger (361) and a bearing (362). The trigger (361) is rotatably connected to the gun holder (310), and the bearing (362) is slidably connected to the gun holder (310). The trigger (361) is provided with a fourth rotating shaft (366), and the bearing (362) is provided with a first opening groove (367) that can accommodate the fourth rotating shaft (366) to enter and slide.

12. The soft tissue suturing device according to claim 9, characterized in that, The clamping assembly (500) includes a spring (510) and a mounting member (520), the spring (510) being connected to the upper jaw (120) via the mounting member (520).

13. The soft tissue suturing device according to claim 9, characterized in that, The clamping assembly (500) includes a cover plate (530), a fifth rotating shaft (540), and a torsion spring (550). The two ends of the fifth rotating shaft (540) are respectively connected to the two opposite inner walls of the window area (122). The cover plate (530) is rotatably connected to the fifth rotating shaft (540). The two free ends of the torsion spring (550) abut against the cover plate (530) and the upper jaw (120), respectively.

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