Suturing device and suture line tension adjusting assembly

Abstract

The utility model relates to a suture device and a suture line tension adjusting assembly. The suture line tension adjusting assembly comprises a spring, a reel and a knob. The winding wheel is connected with the spring, and the winding wheel synchronously drives the spring to be tightened when rotating in the first direction for unwinding. The rotary knob is used for driving the reel to rotate and wind in the second direction. In the sewing process of the sewing line, the reel rotates and unrolls in the first direction, meanwhile, the reel can synchronously drive the clockwork spring to be curled and tighten to store force or rebound to generate force, and in the rotating and tightening process of the clockwork spring, the tension force of the sewing line can be improved, and the sewing line can be in a straightened and tensioned state advantageously; after the suture line is sutured and before the suture line is cut and knotted, the winding wheel is driven by the rotary knob to rotate and wind in the second direction, so that the suture line in the straightened state is wound on the winding wheel, the tensile force of the suture line can be improved, the suture line can be conveniently adjusted to be in the tensioned state, and then the success probability of an operation can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a suture device and a suture tension adjustment assembly. Background Art

[0002] Suturing is to align or reconstruct the channels of tissues and organs that have been incised or traumatized and fractured, restore their functions, which is the basic condition for ensuring good healing and one of the important basic surgical operation techniques. Different tissues and organs in different parts need to be sutured in different ways.

[0003] During the suturing process of the suture device in the related art, the wire winding wheel of the suture device rotates synchronously to release the suture, so as to meet the requirements of the surgical suture operation for the suture. However, usually before the suture is completed, and before the steps of cutting the suture and tying a knot, since the suture is relatively loose, it is necessary for personnel to assist to adjust the suture to a tensioned state, which makes the suture operation difficult and has low safety; otherwise, the suture effect is not good, resulting in a reduced probability of surgical success and an extended surgical recovery time. Summary of the Invention

[0004] Based on this, it is necessary to overcome the defects of the prior art and provide a suture device and a suture tension adjustment assembly, which can facilitate the adjustment of the suture to a tensioned state before the suture is completed and before the steps of cutting the suture and tying a knot, and can improve the probability of surgical success.

[0005] A suture tension adjustment assembly, the suture tension adjustment assembly includes:

[0006] A wire winding wheel for winding or unwinding the suture;

[0007] A spring, the spring is connected to the wire winding wheel, and the spring adaptively tightens when the wire winding wheel rotates and unwinds in a first direction; and

[0008] A knob, the knob is connected to the wire winding wheel, and the knob is used to drive the wire winding wheel to rotate and wind in a second direction, and the second direction is opposite to the first direction.

[0009] In one embodiment, the suture tension adjustment assembly further includes a mounting shell and a rotating shaft; the spring is disposed inside the mounting shell, and the wire winding wheel and the knob are located outside the mounting shell; the mounting shell is provided with a first shaft hole, the rotating shaft is rotatably disposed through the first shaft hole and connected to the spring; the wire winding wheel is provided with a through hole, the knob is provided with an opening, the rotating shaft also passes through the through hole and can rotate synchronously with the wire winding wheel, and the rotating shaft penetrates into the opening and can rotate synchronously with the knob.

[0010] In one embodiment, the rotating shaft includes a first shaft section and a second shaft section coaxially connected to the first shaft section; the first shaft section is respectively disposed through the through hole and the opening hole, and the axial cross-sectional profiles of the through hole and the opening hole are configured as flat, elliptical or polygonal and are the same as the axial cross-sectional profile shape of the first shaft section; the second shaft section is rotatably disposed through the first shaft hole.

[0011] In one embodiment, the rotating shaft further includes an isolation section connected between the first shaft section and the second shaft section, and axial ends of the isolation section are respectively in abutting fit with the winding wheel and the mounting shell.

[0012] In one embodiment, the rotating shaft further includes a third shaft section coaxially connected to the second shaft section, and a second shaft hole is further formed on the mounting shell, and the third shaft section is rotatably disposed through the second shaft hole.

[0013] In one embodiment, a direction indication mark is formed on the surface of the knob, and the direction indication mark indicates the second direction.

[0014] A suture device, the suture device includes the suture tension adjustment assembly as described above, and further includes a housing, the mounting shell and the winding wheel are both disposed inside the housing, and the knob is rotatably disposed outside the housing.

[0015] In one embodiment, the housing forms a mounting cavity adapted to the shape of the mounting shell, and the mounting shell is fixedly disposed inside the mounting cavity; a first groove is formed on the inner wall of the mounting cavity on a side away from the winding wheel along the axial direction of the rotating shaft, and a first protrusion circumferentially disposed around the second shaft hole is provided on the outer wall of the mounting shell, and the first protrusion is snap-fitted into the first groove; a third shaft hole is formed on the bottom wall of the first groove, and the rotating shaft is respectively rotatably disposed through the first shaft hole, the second shaft hole and the third shaft hole.

[0016] In one embodiment, a fourth shaft hole is provided on the side wall of the housing, a second protrusion circumferentially disposed around the through hole is provided on the axial end surface of the winding wheel facing away from the mounting shell, the second protrusion is rotatably disposed in the fourth shaft hole, and the rotating shaft also passes through the through hole formed by the enclosure of the second protrusion; a fifth shaft hole communicated with the fourth shaft hole is further provided on the side wall of the housing, a third protrusion circumferentially disposed around the opening hole is provided on the knob, the third protrusion is rotatably disposed in the fifth shaft hole, and the rotating shaft also passes through the through hole formed by the enclosure of the third protrusion.

[0017] In one embodiment, the fourth shaft hole and the fifth shaft hole are coaxially arranged, and the aperture of the fourth shaft hole is smaller than that of the fifth shaft hole; and / or, a fourth protrusion is provided on the outer wall of the housing and is circumferentially arranged around the fifth shaft hole, and the fourth protrusion is in abutting fit with the knob.

[0018] In the above suture device and suture tension adjustment assembly, during the suture process of the suture thread, the winding wheel rotates in the first direction to unwind. The more turns the winding wheel rotates, the more the suture thread loosens. At the same time, since the winding wheel can synchronously drive the spring to curl and tighten to store energy or rebound to exert force, during the adaptive tightening rotation of the spring, the tension of the suture thread can be increased, which is beneficial to keep the suture thread in a straight and taut state; after the suture thread is sutured, and before the steps of cutting the suture thread and tying a knot, the winding wheel is driven to rotate in the second direction to wind up by the knob, so that the straight suture thread is wound around the winding wheel, thereby increasing the tension of the suture thread and facilitating the adjustment of the suture thread to the taut state, and further improving the success probability of the operation. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a suture device according to an embodiment of the present application.

[0020] Figure 2 is Figure 1 A cross-sectional view taken along line A-A.

[0021] Figure 3 It is a structural diagram of a suture tension adjustment assembly according to an embodiment of the present application.

[0022] Figure 4 is Figure 3 A perspective structural diagram of the knob in the shown structure.

[0023] Figure 5 is Figure 3 A structural diagram of the rotating shaft in the shown structure.

[0024] 10. Suture tension adjustment assembly; 11. Spring; 12. Thread winding wheel; 121. Through hole; 122. Thread winding part; 123. First stop disc; 1231. Knotting hole; 124. Second stop disc; 125. Second protruding part; 13. Knob; 131. Direction indication mark; 132. Opening; 133. Third protruding part; 14. Installation shell; 141. Main body box; 1411. Second shaft hole; 1412. First protruding part; 142. Cover plate; 1421. First shaft hole; 1422. First flange; 15. Rotating shaft; 151. First shaft section; 152. Second shaft section; 1521. Second card slot; 153. Third shaft section; 154. Isolation section; 20. Outer shell; 21. Installation cavity; 211. First groove; 2111. Third shaft hole; 22. Fourth shaft hole; 23. Fifth shaft hole; 24. Fourth protruding part. Detailed implementation manners

[0025] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0026] Refer to Figures 1 to 3 , Figure 1 which shows the structural schematic diagram of a suture device according to an embodiment of the present application. Figure 2 shows Figure 1 the sectional view at A-A. Figure 3 which shows the structural diagram of a suture tension adjustment assembly 10 according to an embodiment of the present application. A suture tension adjustment assembly 10 provided by an embodiment of the present application includes a spring 11, a thread winding wheel 12, and a knob 13. The thread winding wheel 12 is used to wind or unwind the suture. The spring 11 is connected to the thread winding wheel 12, and the spring 11 adaptively tightens when the thread winding wheel 12 rotates and unwinds in the first direction. The knob 13 is connected to the thread winding wheel 12, and the knob 13 is used to drive the thread winding wheel 12 to rotate and wind in the second direction, and the second direction is opposite to the first direction. Optionally, a direction indication mark 131 is formed on the surface of the knob 13. The direction indication mark 131 includes, but is not limited to, a wire groove, a coating, a scale line, etc. formed on the surface of the knob 13. The direction indicated by the direction indication mark 131 is, for example, the second direction, which can prompt the staff to perform operations and play a role in preventing mistakes.

[0027] The above-mentioned suture tension adjustment assembly 10, during the suture process, the wire winding wheel 12 rotates and unwinds in the first direction. The more turns the wire winding wheel 12 makes, the more the suture loosens. At the same time, since the wire winding wheel 12 can drive the spring 11 to curl and tighten for energy storage or rebound and exert force synchronously, during the adaptive tightening process of the spring 11 when it rotates, it can increase the tension of the suture, which is beneficial to keep the suture in a straight and tense state; after the suture is completed and before the steps of cutting the suture and tying a knot, the wire winding wheel 12 is driven to rotate and wind in the second direction by the knob 13, so that the straightened suture is wound around the wire winding wheel 12, thereby increasing the tension of the suture and facilitating the adjustment of the suture to the tense state, and further increasing the success probability of the operation.

[0028] It should be noted that after driving the wire winding wheel 12 to rotate and wind in the second direction by the knob 13 and adjusting the suture to the preset tense state, the suture can be cut and knotted.

[0029] It should also be noted that during the unwinding process, the spring and the suture apply rotational torques in opposite directions to the wire winding wheel. The "adaptive" in the above description means that if the tightness of the suture changes, it means that the rotational torque applied by the suture to the wire winding wheel changes. The spring will, according to the rotational torque applied by the suture to the wire winding wheel, by changing its own tightened deformation degree or other means, make the rotational torque of the spring on the wire winding wheel change accordingly to offset the rotational torque applied by the spring to the wire winding wheel.

[0030] Please refer to Figures 2 to 5 , Figure 4 which shows a structural diagram of a perspective of the knob 13, Figure 5 and shows a structural diagram of the rotating shaft 15. In one embodiment, the suture tension adjustment assembly 10 further includes a mounting shell 14 and a rotating shaft 15. The spring 11 is disposed inside the mounting shell 14, and the wire winding wheel 12 and the knob 13 are located outside the mounting shell 14. The mounting shell 14 is provided with a first shaft hole 1421, and the rotating shaft 15 is rotatably passed through the first shaft hole 1421 and connected to the spring 11. The wire winding wheel 12 is provided with a through hole 121, and the knob 13 is provided with an opening 132. The rotating shaft 15 also passes through the through hole 121 and can rotate synchronously with the wire winding wheel 12. At the same time, the rotating shaft 15 passes through the opening 132 and can rotate synchronously with the knob 13. In this way, the spring 11, the wire winding wheel 12 and the knob 13 are combined together through the rotating shaft 15, which not only has a simple structure and is convenient for assembly, but also can adjust the suture to the tense state, and further increase the success probability of the operation.

[0031] Please refer to Figure 2, in one embodiment, the clockwork spring 11 is wound in the same direction to form a disc body. The clockwork spring 11 includes a first end and a second end arranged along its extending direction. The first end is located at the central part of the disc body and is connected to the rotating shaft 15, and the second end is located at the periphery of the disc body and abuts against and cooperates with the inner wall of the mounting shell 14. In this way, when the winding wheel 12 rotates and unwinds, it synchronously drives the rotating shaft 15 to rotate, and the rotating shaft 15 correspondingly drives the first end to act so as to tighten the clockwork spring 11. In addition, after the clockwork spring 11 is tightened to a certain extent, when the resistance between the second end and the inner wall of the mounting shell 14 is less than the tension force of the clockwork spring 11, the second end of the clockwork spring 11 slides relative to the inner wall of the mounting shell 14, so as to avoid excessive tension force of the suture thread.

[0032] Please refer to Figure 2 , in one embodiment, a plurality of first clamping grooves are arranged in sequence along the circumferential direction on the inner wall of the mounting shell 14. The second end is provided with a first clamping portion that can be clamped into any one of the first clamping grooves. In this way, when the number of rotation turns of the winding wheel 12 is too large and the clockwork spring 11 is too tight, the first clamping portion of the clockwork spring 11 slips out of one first clamping groove and moves along the rotation direction of the winding wheel 12 into the next first clamping groove.

[0033] In some embodiments, the contour of the inner wall of the mounting shell 14 along its circumferential direction includes but is not limited to being set as a circle or an ellipse, etc. That is, the inner wall of the mounting shell 14 is set as a circumferential inner wall surface or an elliptical circumferential inner wall surface. In this way, when the number of rotation turns of the winding wheel 12 is too large and the clockwork spring 11 is too tight, the second end of the clockwork spring 11 slides relative to the circumferential inner wall surface or the elliptical circumferential inner wall surface, and the movement is relatively smooth and stable, and the defect of jamming can be avoided. Of course, the contour of the inner wall of the mounting shell 14 along its circumferential direction can also be set as a polygon, such as a square, a pentagon or a hexagon, etc.

[0034] In one embodiment, the clockwork spring 11 includes an elastic sheet, and the first clamping portion is formed by winding the second end and is arranged in a column shape. A plurality of clamping blocks are arranged in sequence along the circumferential direction on the inner wall of the mounting shell 14, and any two adjacent clamping blocks cooperate with the inner wall of the mounting shell 14 to form a first clamping groove. In this way, the first clamping portion is in a columnar shape, and after being clamped into the first clamping groove, the first clamping portion has a relatively long area in contact with the inner wall of the mounting shell 14 in the axial direction of the rotating shaft 15, so as to improve the tension force and stability.

[0035] On the basis of the foregoing embodiment, the cross-sectional contour of the first clamping portion perpendicular to the winding direction includes but is not limited to regular shapes such as a circle and an ellipse or other irregular shapes.

[0036] Of course, in some alternative solutions, the clockwork spring 11 is not limited to being set as an elastic sheet, and can also be set as an elastic wire or an elastic strip, etc., and can be flexibly adjusted and set according to actual needs, and will not be limited herein.

[0037] In some embodiments, the connection manner between the rotating shaft 15 and the winding spring 11 includes but is not limited to snap connection, bonding, or connection and fixation through fasteners such as pins, rivets, and screws, as long as the winding spring 11 can be synchronously tightened and stored energy or rebound and exert force when the rotating shaft 15 rotates. In this embodiment, a second snap connection portion is provided at the first end, and a second card slot 1521 is provided on the rotating shaft 15. The second snap connection portion is snap-fitted into the second card slot 1521. In this way, the disassembly and assembly operations of the rotating shaft 15, the winding spring 11, and the mounting shell 14 can be facilitated. Optionally, the extending direction of the second card slot 1521 is parallel to the axial direction of the rotating shaft 15. During the installation operation, when the rotating shaft 15 is inserted into the interior of the mounting shell 14 through the first shaft hole 1421, it can be snap-connected to the second snap connection portion at the same time. Conversely, during the disassembly operation, when the rotating shaft 15 is pulled outwards from the first shaft hole 1421, the second snap connection portion can be separated from the second card slot 1521.

[0038] Please refer to Figures 2 to 5 In some embodiments, the rotating shaft 15 includes a first shaft section 151 and a second shaft section 152 coaxially connected to the first shaft section 151. The first shaft section 151 respectively passes through the through hole 121 and the opening 132. Specifically, the axial cross-sectional profiles of the through hole 121 and the opening 132 include but are not limited to being non-circular and having the same shape as the axial cross-sectional profile of the first shaft section 151. Among them, the non-circular shape includes but is not limited to being set as regular shapes such as flat, oval, or polygonal, and other irregular shapes, as long as it satisfies that the first shaft section 151 can rotate synchronously with the winding wheel 12 and the knob 13 when rotating. Specifically, when the knob 13 is rotated manually, for example, it can drive the first shaft section 151 to rotate synchronously; when the winding wheel 12 is rotated by the suture, it can drive the rotating shaft 15 to rotate accordingly, so that the winding spring 11 can be tightened and stored energy or rebound and exert force accordingly.

[0039] In some embodiments, the second shaft section 152 is rotatably passed through the first shaft hole 1421, and thus is supported by the mounting shell 14 and can rotate stably in the mounting shell 14. Optionally, the second card slot 1521 is specifically formed on the second shaft section 152, for example.

[0040] In one embodiment, the rotating shaft 15 further includes an isolation section 154 connected between the first shaft section 151 and the second shaft section 152. The axial two ends of the isolation section 154 are respectively in abutting cooperation with the winding wheel 12 and the mounting shell 14. In this way, the isolation section 154 can form a gap between the mounting shell 14 and the winding wheel 12, thereby preventing the winding wheel 12 and the mounting shell 14 from contacting and rubbing against each other.

[0041] Please refer to Figure 2In some embodiments, the mounting shell 14 is provided with a first flange 1422 which is circumferentially arranged around the first axial hole 1421. The first flange 1422 abuts against the axial end surface of the isolation section 154. In this way, the distance between the outer surface of the mounting shell 14 and the axial end surface of the winding wheel 12 can be further increased, which can effectively prevent the two from contacting and rubbing with each other.

[0042] See also Figure 2 and Figure 3 In some embodiments, the winding wheel 12 includes a winding portion 122 and a first baffle 123 and a second baffle 124 located on opposite sides of the winding portion 122 in the axial direction. The first baffle 123 is provided with at least one knotting hole 1231 for knotting and fixing the suture. In addition, the second baffle 124 is in abutment with the axial end surface of the isolation section 154 away from the mounting shell 14.

[0043] In one embodiment, the rotating shaft 15 further includes a third shaft section 153 coaxially connected to the second shaft section 152. A second shaft hole 1411 is also formed on the mounting shell 14. The third shaft section 153 is rotatably inserted into the second shaft hole 1411. In this way, the rotating shaft 15 is respectively inserted into the first shaft hole 1421 and the second shaft hole 1411, so that it can rotate more stably.

[0044] See also Figure 2 In one embodiment, the mounting shell 14 includes a main box 141 formed with an opening and a cover plate 142 detachably connected to the main box 141 and disposed at the opening. The mainspring 11 can be installed inside the main box 141 through the opening. In this way, it is convenient to disassemble and assemble the mainspring 11. Specifically, a first axial hole 1421 is formed on the cover plate 142, and a second axial hole 1411 is formed on the main box 141 at a position corresponding to the position of the first axial hole 1421. In this way, the second shaft section 152 is rotatably inserted through the cover plate 142 and supported by the cover plate 142; the third shaft section 153 is rotatably inserted through the main box 141 and supported by the main box 141.

[0045] Optionally, the outer diameter of the isolation segment 154 is respectively larger than the outer diameter of the first shaft segment 151 and the outer diameter of the second shaft segment 152, so that a step is formed with the first shaft segment 151 to limit the winding wheel 12; and a step is formed with the second shaft segment 152 to limit the mounting shell 14.

[0046] See also Figures 1 to 3 In one embodiment, a suturing device includes the suture thread tension adjustment assembly 10 of any of the above embodiments, and also includes a shell 20, the mounting shell 14 and the winding wheel 12 are both arranged inside the shell 20, and the knob 13 is rotatably arranged outside the shell 20.

[0047] In the above suture device, during the suture process of the suture thread, the winding wheel 12 rotates in the first direction to unwind. The more the winding wheel 12 rotates, the more the suture thread loosens. At the same time, since the winding wheel 12 can synchronously drive the spring 11 to curl and tighten to store energy or rebound to exert force, during the process of the spring 11 rotating and tightening, the tension of the suture thread can be increased, which is beneficial to keeping the suture thread in a straight and taut state. After the suture thread is sutured, and before the steps of cutting the suture thread and tying a knot, the winding wheel 12 is driven to rotate in the second direction to wind up by the knob 13, so that the straightened suture thread is wound around the winding wheel 12, thereby increasing the tension of the suture thread and facilitating the adjustment of the suture thread to a taut state, and further improving the success probability of the operation.

[0048] Among them, the mounting shell 14 and the winding wheel 12 are arranged inside the outer shell 20. The outer shell 20 plays a protective role and can prevent the mounting shell 14 and the winding wheel 12 from being damaged, thereby extending the service life. In addition, the knob 13 is located outside the outer shell 20, so that the tensioning operation of the suture thread can be facilitated.

[0049] Please refer to Figure 2 , in one embodiment, the outer shell 20 forms a mounting cavity 21 adapted to the shape of the mounting shell 14, and the mounting shell 14 is fixedly arranged inside the mounting cavity 21. In this way, the mounting shell 14 is stably installed inside the outer shell 20, and has good stability when the spring 11 is driven by the rotating shaft 15 to tighten and store energy or rebound to exert force.

[0050] In some embodiments, a first groove 211 is formed on one side of the inner wall of the mounting cavity 21 away from the winding wheel 12 along the axial direction of the rotating shaft 15. The outer wall of the mounting shell 14 is provided with a third clamping portion that is clamped and matched with the first groove 211. Specifically, the third clamping portion is arranged at the end of the main body box 141 facing away from the cover plate 142, including but not limited to a first protrusion 1412 circumferentially arranged around the second shaft hole 1411. In this way, when the mounting shell 14 is installed inside the mounting cavity 21, the third clamping portion is clamped in the first groove 211, so that the mounting shell 14 is stably installed inside the outer shell 20.

[0051] In addition, since the first protrusion 1412 is circumferentially arranged around the second shaft hole 1411, the third shaft section 153 not only passes through the second shaft hole 1411, but also passes through the shaft hole formed by the enclosure of the first protrusion 1412, and has a good supporting effect on the third shaft section 153, thereby improving the rotational stability of the rotating shaft 15.

[0052] In some embodiments, a third shaft hole 2111 is formed on the bottom wall of the first groove 211. The rotating shaft 15 is rotatably passed through the third shaft hole 2111.

[0053] In one embodiment, a fourth shaft hole 22 is provided on the side wall of the outer shell 20. A second protrusion 125 is circumferentially arranged around the through hole 121 on the axial end surface of the winding wheel 12 facing away from the mounting shell 14. The second protrusion 125 is rotatably arranged in the fourth shaft hole 22, and the rotating shaft 15 also passes through the through hole formed by enclosing the second protrusion 125. In this way, the second protrusion 125 extends into the fourth shaft hole 22 and is rotatably arranged in the fourth shaft hole 22, so that the rotation effect of the winding wheel 12 is stable.

[0054] In addition, a fifth shaft hole 23 communicating with the fourth shaft hole 22 is also provided on the side wall of the outer shell 20. The knob 13 is provided with a third protrusion 133 circumferentially arranged around the opening 132. The third protrusion 133 is rotatably arranged in the fifth shaft hole 23. The rotating shaft 15 also passes through the through hole formed by enclosing the third protrusion 133.

[0055] In one embodiment, the fourth shaft hole 22 and the fifth shaft hole 23 are coaxially arranged. The aperture of the fourth shaft hole 22 is smaller than that of the fifth shaft hole 23. In this way, the hole wall of the fourth shaft hole 22 and the hole wall of the fifth shaft hole 23 cooperate to form a step, and the third protrusion 133 of the knob 13 extending into the interior of the fifth shaft hole 23 can be limited by the step and rotate stably in the fifth shaft hole 23.

[0056] In one embodiment, a fourth protrusion 24 is provided on the outer wall of the outer shell 20 and is circumferentially arranged around the fifth shaft hole 23. The fourth protrusion 24 is in abutting cooperation with the knob 13. In this way, when the fourth protrusion 24 is in abutting cooperation with the knob 13, a spaced space can be formed between the knob 13 and the outer wall of the outer shell 20, so that the knob 13 can rotate and operate more flexibly.

[0057] It should be noted that the related technologies in the background art of this application are only for facilitating the description of the technical problems to be solved by this application, and these related technologies do not necessarily belong to the prior art.

[0058] In addition, if the terms "first" and "second" appear, these terms are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0062] The above-described embodiments only represent several implementation manners of this application, and their descriptions are relatively specific and detailed, but they should not be construed as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application should be subject to the appended claims.

Claims

1. A suture tension adjustment assembly, characterized in that: The suture tension adjustment assembly comprises: A winding wheel for winding or unwinding the suture thread; A mainspring, the mainspring being connected to the winding wheel, and the mainspring being adaptively tightened when the winding wheel rotates in a first direction to unwind; and A knob is connected to the winding wheel, and the knob is used to drive the winding wheel to rotate and reel in a second direction, and the second direction is opposite to the first direction.

2. The suture tension adjustment assembly according to claim 1, characterized in that: The suture thread tension adjustment assembly also includes a mounting shell and a rotating shaft; the mainspring is arranged inside the mounting shell, and the winding wheel and the knob are located outside the mounting shell; the mounting shell is provided with a first axial hole, and the rotating shaft is rotatably penetrated in the first axial hole and connected to the mainspring; the winding wheel is provided with a through hole, and the knob is provided with an opening, the rotating shaft is also penetrated in the through hole and can rotate synchronously with the winding wheel, and the rotating shaft penetrates into the opening and can rotate synchronously with the knob.

3. The suture tension adjustment assembly according to claim 2, characterized in that: The rotating shaft includes a first shaft segment and a second shaft segment coaxially connected to the first shaft segment; the first shaft segment is respectively inserted into the through hole and the opening, and the axial cross-sectional profiles of the through hole and the opening are set to be flat, elliptical or polygonal and have the same shape as the axial cross-sectional profile of the first shaft segment; the second shaft segment is rotatably inserted into the first shaft hole.

4. The suture tension adjustment assembly according to claim 3, characterized in that: The rotating shaft also includes an isolation section connected between the first shaft section and the second shaft section, and the axial ends of the isolation section are respectively abutted against the winding wheel and the mounting shell.

5. The suture tension adjustment assembly according to claim 3, characterized in that: The rotating shaft also includes a third shaft segment coaxially connected to the second shaft segment. A second shaft hole is also formed on the mounting shell. The third shaft segment is rotatably inserted into the second shaft hole.

6. The suture tension adjustment assembly according to any one of claims 1 to 5, characterized in that: A direction indicating mark is formed on the surface of the knob, and the direction indicating mark indicates the second direction.

7. A suturing device, characterized in that: The suturing device comprises the suture thread tension adjustment assembly as described in any one of claims 2 to 6, and also comprises a shell, the mounting shell and the winding wheel are both arranged inside the shell, and the knob is rotatably arranged outside the shell.

8. The suturing device according to claim 7, characterized in that: The outer shell is formed with an installation cavity adapted to the shape of the installation shell, and the installation shell is fixedly arranged inside the installation cavity; a first groove is formed on the inner wall of the installation cavity on the side away from the winding wheel along the axial direction of the rotating shaft, and a first protrusion circumferentially arranged around the second axial hole is provided on the outer wall of the installation shell, and the first protrusion is snap-fitted into the first groove; a third axial hole is formed on the bottom wall of the first groove, and the rotating shaft is rotatably inserted into the first axial hole, the second axial hole and the third axial hole respectively.

9. The suturing device according to claim 7, characterized in that: A fourth axial hole is provided on the side wall of the outer shell, and a second protrusion is circumferentially arranged around the through hole on the axial end face of the winding wheel away from the mounting shell, the second protrusion is rotatably arranged in the fourth axial hole, and the rotating shaft is also passed through the through hole formed by the second protrusion; a fifth axial hole is also provided on the side wall of the outer shell and is connected to the fourth axial hole, the knob is provided with a third protrusion circumferentially arranged around the opening, the third protrusion is rotatably arranged in the fifth axial hole, and the rotating shaft is also passed through the through hole formed by the third protrusion.

10. The suturing device according to claim 9, characterized in that: The fourth axial hole is coaxially arranged with the fifth axial hole, and the aperture of the fourth axial hole is smaller than the aperture of the fifth axial hole; and / or, a fourth protrusion circumferentially arranged around the fifth axial hole is provided on the outer wall of the shell, and the fourth protrusion abuts against the knob.

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