Human body tendon weaving and suturing device
By designing a tendon braided suture device for sliding cylinders and clamping elements, the problems of low suture efficiency and dependence on operator experience in existing suture devices are solved, and efficient and standardized tendon suture is achieved, reducing tendon adhesion and refraction, and meeting the needs of early rehabilitation.
Patent Information
- Application Number
- CN202422122805.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Existing tendon suture devices are inefficient, rely on surgical experience, and are difficult to meet the patients' early recovery needs, and often lead to tendon adhesion and refraction.
A human tendon braided suture device is designed, including a slider and a clamping element. The slider has a U-shaped gap to provide an observation window. The clipping element realizes the closing and opening of the upper mouth clamp through a V-shaped handle and a tie rod. It is equipped with long and short serrated teeth to stabilize clamping, and combines the limiting pin and ball guide to standardize the suture process.
The suture efficiency is improved, the suture depends on the experience of the surgeon, adapt to different tendon sizes, standardize suture methods, reduce tendon adhesion and refraction, and meet early recovery needs.
Smart Images
Figure CN223081706U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to suture surgical instruments, and more specifically, relates to a human tendon braiding suture device. Background Art
[0002] Tendons are dense connective tissues composed of a parallel arrangement of collagen fibers, which serve as a bridge to connect muscles and bones. Tendon rupture is a common injury in the emergency department and orthopedics department, and most of them are open injuries. It is reported that there are nearly 470,000 cases of hand tendon injuries and about 250,000 cases of Achilles tendon rupture in China every year. Tendon injuries often force professional athletes to end their sports careers and seriously affect people's normal life. When performing tendon suture surgery, first, the soft tissues around the wound are separated to expose the tendon stumps. Second, the redundant tissues at the stumps are trimmed, and professional instruments are used to fix the two stumps of the tendon. Finally, the suture operation is carried out.
[0003] However, the current suture methods for treating Achilles tendon injuries in clinical practice are mechanically insufficient. After the operation, long-term plaster fixation and limb immobilization are often required. The long-term plaster fixation and limb immobilization will inevitably lead to adhesive healing of the tendon, seriously affecting the patient's later functional recovery. In addition, most of the suture instruments currently used in clinical practice are simple surgical auxiliary instruments, and the suture effect depends more on the experience of the surgeon. For the same suture method, the suture effects vary greatly. Inaccurate suture and poor mechanics are the main deficiencies of the current clinical suture technology, and it is difficult to meet the early rehabilitation needs of patients after surgery and the requirements of doctors for efficient and standardized treatment of ruptured Achilles tendons.
[0004] The tendon suture device in CN 116849737 A includes a cavity with one end open. The cavity is used to accommodate the tendon tissue to be sutured. When suturing the tendon tissue, the tendon tissue can enter the cavity through the opening of the cavity. The cavity is surrounded by walls, and a first wire routing channel and a first guide needle hole are provided on the walls. On the one hand, when suturing the tendon with this tendon suture device, the situation of the tendon cannot be seen. When the suture needle passes through one side of the needle hole and passes through the tendon cross-section to reach the other side of the needle hole, the line of sight is blocked by the wall, which may cause the suture needle to pass through the wrong needle hole during the needle walking process, affecting the suture efficiency. On the other hand, the gripper for grasping the tendon is controlled to open or close by moving a push key in a tube groove, which is very inconvenient to use. On the other hand, only the front end of the gripper can clamp the tendon, sometimes resulting in unstable gripper and affecting the suture operation.
[0005] Therefore, there is an urgent need for a new type of tendon suture device to solve the above problems. Summary of the Invention
[0006] The present utility model provides a human tendon braiding and suturing device, including a sliding cylinder and a clamping element. The sliding cylinder is used for suturing tendon stumps, and the clamping element is used for fixedly clamping tendon stumps. When the clamping element fixedly clamps a tendon stump, the sliding cylinder slides towards the tendon stump to coincide with it for suturing. The sliding cylinder is provided with a U-shaped notch to provide an observation window for the tendon stump to be sutured; pressing the V-shaped handle of the clamping element drives the connecting piece to drive the pull rod to move horizontally to realize the closing or opening of the upper jaw clamp; long serrated teeth and short serrated teeth are also provided at the ends and on both sides of the upper jaw clamp and the lower jaw clamp for stably and reliably clamping tendon stumps; the present utility model can not only standardize the tendon suturing method, make the suturing effect independent of the operator's experience, meet the early rehabilitation needs of patients, but also has simple operation and high suturing efficiency.
[0007] A human tendon braiding and suturing device, characterized in that it includes a sliding cylinder and a clamping element. The sliding cylinder includes a suturing end for suturing, and the clamping element is used for fixedly clamping tendon stumps. When the clamping element fixedly clamps a tendon stump, the sliding cylinder and / or the clamping element undergoes displacement to make the suturing end of the sliding cylinder coincide with the tendon stump.
[0008] Furthermore, the sliding cylinder further includes a U-shaped notch to provide an observation window for the tendon stump to be sutured; needle passing holes are arranged around the U-shaped notch.
[0009] In some ways, the setting of the U-shaped notch can not only clearly observe the needle passing route and suturing situation, facilitating suturing, but also accommodate tendons of different volumes, having a certain volume space accommodating effect, accommodating tendons with different volumes to a certain extent, so as to be suitable for the braiding and suturing of tendons with volume differences.
[0010] In some ways, the first needle passing holes and the second needle passing holes are respectively distributed on the left and right sides and the upper and lower sides of the U-shaped notch. The suture can be regarded as playing a fixing role in the horizontal direction of the tendon under the guidance of the first needle passing hole and its wiring channel, while the second needle passing hole can be regarded as playing a fixing role in the vertical direction of the tendon.
[0011] When most tendon suturing devices drag the tendon stump into the cavity for suturing, the cavity is surrounded by walls, and the needle passing holes are distributed on the walls. In this way, the internal situation of the tendon stump during suturing cannot be seen when sewing the needle, resulting in the sewing needle entering the wrong needle passing hole when entering from the needle passing hole on one side of the wall, passing through the cross-section of the tendon, and coming out from the needle passing hole on the other side of the wall. This is not only inconvenient but also greatly affects the suturing efficiency, and the tendon cylinder of a tendon suturing device is only suitable for suturing tendons of one size and is not suitable for suturing tendons larger than the size of the cylinder tube. The present utility model is provided with a U-shaped notch, and the needle passing route and suturing situation can be clearly observed during tendon stump suturing, and the situation of the sewing needle entering the wrong needle passing hole will not occur. Moreover, the U-shaped notch has a volume accommodating and releasing effect on tendons larger than the tendon cylinder, and is suitable for suturing tendons with a size equivalent to or larger than the diameter of the cylinder wall.
[0012] Further, the sliding cylinder further includes a knurled nut and a cutting surface. Two symmetric rectangular guide rails are provided inside the knurled nut, and a limit pin is provided on the rectangular guide rail. The limit pin includes a ball and is embedded on the inner wall of the rectangular guide rail; the cutting surface is used for stable guiding.
[0013] In some ways, the knurled nut and the sliding cylinder are integrally structured in a fixed connection.
[0014] Further, the clamping element includes a sliding rod. Cutting planes are provided on both sides of the sliding rod, and slide rails, a front stop hole, and a rear stop hole are provided on the cutting planes, for the sliding cylinder to move along the slide rail between the front stop hole and the rear stop hole through the combined action of the ball of the limit pin and the rectangular guide rail.
[0015] In some ways, through the combined action of the cutting plane and the slide rail, the effect of the sliding cylinder moving stably along the slide rail on a fixed plane is achieved. The front stop hole and the rear stop hole provided on the cutting plane act together to achieve the top tightening or fixing of the sliding cylinder at the fixed-distance positions at both ends of the slide rail.
[0016] The sliding cylinder is sleeved outside the sliding rod. Through the combined action of the rectangular guide rail of the sliding cylinder, the ball of the limit pin, and the slide rail, the front stop hole, and the rear stop hole of the sliding rod, the fixed sliding of the sliding cylinder on the sliding rod is achieved. Further, the upper and lower jaws are fixed through the sliding cylinder when clamping the tendon. Due to the provision of the front and rear stop holes, the ball can only move fixedly on the slide rail between the front stop hole and the rear stop hole, so the sliding process is a fixed distance.
[0017] Further, the clamping element further includes a pull rod. The pull rod includes an upper jaw clip. The upper jaw clip is connected to the movable head of the pull rod through a pin. The movable head is used for the opening or closing of the upper jaw clip; the outer shape of the upper jaw clip is an arc structure, evenly distributed long serrated teeth are provided at the arc end, and evenly distributed short serrated teeth are provided on both sides of the arc, for stably and reliably clamping the tendon stump.
[0018] In some ways, the short serrated teeth on both sides of the arc of the upper jaw clip are used for stably and reliably clamping the side of the tendon stump; the long serrated teeth at the arc end of the upper jaw clip are used for stably and reliably clamping the tendon stump during the pulling process; the serrated structures at the end and both sides of the arc structure of the upper jaw clip achieve stable clamping of the triangular point structure clamping.
[0019] Further, the clamping element further includes a V-shaped handle and a push rod. The V-shaped handle is connected to the push rod through a rotating shaft, for facilitating the exertion of force by the hand to control the grasping or loosening of the tendon stump; the V-shaped handle further includes two connecting rods and a connecting piece, which are rotatably connected in the order of handle - connecting rod - connecting piece - connecting rod - handle; one end of the connecting piece abuts against a spring, and the other end abuts against the pull rod.
[0020] In some ways, when pressing the V-shaped handle forcefully, the spring is compressed, and the connecting piece drives the pull rod to move horizontally towards the end close to the rotating shaft, the upper jaw clip closes. When the handle is released, the spring rebounds, and the connecting piece drives the pull rod to move horizontally towards the end away from the rotating shaft, and the upper jaw clip opens.
[0021] In some ways, when the pull rod moves horizontally, the upper jaw clip rotates around the pin. Through the combined action of the V-shaped handle, the pull rod, the movable head and the upper jaw clip, the control of the biting and opening actions of the upper jaw clip is realized.
[0022] Further, the ejector rod further includes a conical structure, and the conical structure is provided with a guide hole for jointly acting with the connecting piece to ensure that the ejector rod is always at the center position of the V-shaped handle; an inclined surface is provided inside the connection of the V-shaped handle rotating shaft.
[0023] In some ways, the guide hole provided in the conical structure ensures that the connecting piece always slides along the inside of the guide hole, and the inclined surface provided inside the connection of the V-shaped handle rotating shaft is used for the rotational movement of the V-shaped handle within the maximum range after being pressed.
[0024] Further, the sliding rod further includes a lower jaw clip, the shape structure of the lower jaw clip is the same as that of the upper jaw clip, and it is connected to the upper jaw clip through a pin; the sliding rod further includes a sliding nut for fixedly connecting with the ejector rod; a channel is provided inside the sliding rod, and a guide plate is provided inside the sliding nut for the pull rod to stably move horizontally within the channel of the sliding rod.
[0025] In some ways, the cylindrical structure at the front end of the ejector rod and the boss provided inside the sliding nut are complementary in shape, so they can be connected together; the design of the guide plate realizes the stable guiding of the pull rod and the stable abutment of the contact surface.
[0026] In some ways, the lower jaw clip is fixed at the end of the sliding rod and cannot rotate. It is connected to the upper jaw clip through a pin. Only the upper jaw clip can rotate around the pin. The design of the fixed lower jaw clip is used for reliable and stable abutment of the fixed tissue during horizontal insertion.
[0027] Further, the sliding rod is further provided with a U-shaped hole, and the U-shaped hole provides a certain displacement space for the movable head to ensure the opening or closing of the upper jaw clip; a guide hole is provided at the connection of the U-shaped hole and the sliding rod channel for the stable transmission and limit of the pull rod.
[0028] In some ways, the design of the U-shaped hole realizes the effective and stable movement of the movable head within a fixed range, and further realizes the control of the opening or closing of the upper jaw clip. The pull rod will pass through the guide hole at the connection of the U-shaped hole and the sliding rod channel, and through the guide hole, the pull rod can be stably transmitted and limited.
[0029] Further, the V-shaped handle is also provided with fingerprints for anti-slip; the sliding nut is also provided with evenly distributed serrated patterns for anti-slip and easy movement during manual operation; the knurled nut is also provided with evenly distributed teeth for anti-slip during manual adjustment.
[0030] When using the human tendon braiding and suturing device of the present utility model, hold the device by hand, gradually move the clamping end of the device closer to the tendon stump, and move it to an ideal position. Press the handle with one hand, and at the same time, push the sliding nut with the other hand, so that the ball inside the limit pin on the sliding nut slides from the front stop hole through the slide rail to the rear stop hole. The limit pin presses tightly against the rear stop hole. At this time, the spring is compressed, and the connecting piece drives the pull rod to move horizontally towards the end close to the rotating shaft, the upper jaw clamp closes, the sliding cylinder slides towards the jaw clamp end, and the tendon stump fixed by the jaw clamp is located in the U-shaped notch. Start suturing the tendon through the needle passing hole; slowly release the handle with one hand, and push the sliding nut with the other hand, so that the ball inside the limit pin on the sliding nut slides from the rear stop hole through the slide rail to the front stop hole. At this time, the spring rebounds, and the connecting piece drives the pull rod to move horizontally away from the end of the rotating shaft, the sliding cylinder slides away from the jaw clamp to its original position, and the upper jaw clamp opens; perform the same operation on the other end of the tendon fracture. After suturing is completed, release the clamped tendon, tie and bind the thread ends of the two stumps, and the operation is completed.
[0031] Generally, there are two tendons after rupture. Use a suture needle to suture the two tendon rupture sites to make the rupture site in a closed state, so that the muscle can be produced and connected together later. Most of the suture instruments used clinically are simple surgical auxiliary instruments, and the suture effect depends more on the experience of the operator. However, using the present utility model can standardize the suture, so that the suture technique no longer depends on the experience of the operator. The first needle passing holes are distributed on the wiring channels on the left and right sides of the front end of the sliding cylinder. There are multiple wiring channels, and one or more needle passing holes are provided on each wiring channel. The wiring channels on the left and right sides are symmetrically arranged about the center; the second needle passing holes are symmetrically distributed on the upper and lower sides of the sliding cylinder. They are fixed needle passing holes, and multiple rows of single fixed needle passing holes are arranged in parallel, and no wiring channels are provided. The wiring channels of the first needle passing holes adopt such a distribution method. Generally, the suture needle relies on the needle passing holes on the wiring channels to pass through the tendon for suturing, so that the suture thread passes through the cross-section of the tendon. Different suture methods need to be matched with different wiring channels and needle passing holes. Different suture methods include continuous loop suture method, continuous lockstitch suture method, Bunnel suture method, etc. For example, when using the continuous loop suture method, when using the guide needle hole to guide the suture needle, the suture needle enters from the needle passing hole on one side and exits from the guide needle hole of the wiring channel on the opposite side, and these two steps are repeated continuously, so as to achieve the purpose of suturing the ruptured tendon.
[0032] Therefore, the utility model designs an available instrument that can standardize the suture method, is easy to operate, and can efficiently suture tendons. The device has strong suture mechanics and can meet the early rehabilitation needs of patients, solving the problems of tendon re-rupture and adhesion caused by long-term immobilization. The device's guiding suture can standardize the suture, making the suture effect independent of the surgeon's experience, and enabling the surgeon to efficiently and standardly suture the ruptured tendon during the operation. This invention has greatly promoted the progress of clinical tendon suture technology, improved the treatment efficiency of doctors for ruptured tendons and patient satisfaction, and meets the development needs of social large health. It is a tendon suture device with unique functions.
[0033] The utility model has the following beneficial effects:
[0034] (1) The utility model provides a human tendon braided suture device, including a sliding cylinder and a clamping element. When the clamping element fixedly clamps the tendon stump, the sliding cylinder and / or the clamping element move so that the suture end of the sliding cylinder coincides with the tendon stump for suture. The needle passing route and suture condition can be clearly observed from the U-shaped notch provided on the sliding cylinder, and the design of the U-shaped hole can meet the tendon suture when the tendon size is equal to or larger than the sliding cylinder, adapting to a wider range of tendon suture sizes;
[0035] (2) The sliding cylinder slides along the slide rail between the front stop hole and the rear stop hole on the cutting plane of the slide rod through the ball of the limit pin to coincide with the tendon stump;
[0036] (2) The V-shaped handle facilitates the hand to exert force to press the handle and control the horizontal movement of the pull rod to realize the closing of the upper jaw clamp; a spring is arranged on the connecting piece, and the upper jaw clamp can be opened by releasing the handle;
[0037] (3) The upper jaw clamp and the lower jaw clamp are of arc structures, with evenly distributed long serrated teeth at the arc ends and evenly distributed short serrated teeth on both sides, and the serrated teeth of the upper jaw clamp can mesh with the serrated teeth of the lower jaw clamp for stably and reliably clamping the tendon stump;
[0038] (4) The ejector rod is provided with a guide hole for the connecting piece to drive the pull rod to horizontally move along the fixed track; a guide plate and a guide hole are arranged in the through hole of the slide rod for stable guiding of the pull rod and stable abutment of the contact surface;
[0039] (5) The utility model can not only standardize the tendon suture method, make the suture effect independent of the surgeon's experience, and meet the early rehabilitation needs of patients, but also is easy to operate and has high suture efficiency. Description of the Drawings
[0040] Figure 1 It is a schematic diagram of the overall structure of a human tendon braided suture device for Embodiment 1;
[0041] Figure 2 It is a schematic diagram of the hand-held end structure of a human tendon braided suture device for Embodiment 1;
[0042] Figure 3 Schematic diagram of the V-shaped handle structure of a human tendon braiding and suturing device in Example 1;
[0043] Figure 4 Schematic diagram of the ejector rod structure of a human tendon braiding and suturing device in Example 1;
[0044] Figure 5 Schematic diagram of the pull rod structure of a human tendon braiding and suturing device in Example 1 Figure 1 ;
[0045] Figure 6 Schematic diagram of the pull rod structure of a human tendon braiding and suturing device in Example 1 Figure 2 ;
[0046] Figure 7 Schematic diagram of the connection structure between the V-shaped handle and the pull rod of a human tendon braiding and suturing device in Example 1;
[0047] Figure 8 Schematic diagram of the sliding rod structure of a human tendon braiding and suturing device in Example 1 Figure 1 ;
[0048] Figure 9 Schematic diagram of the sliding rod structure of a human tendon braiding and suturing device in Example 1 Figure 2 ;
[0049] Figure 10 Schematic diagram of the sliding rod structure of a human tendon braiding and suturing device in Example 1 Figure 3 ;
[0050] Figure 11 Schematic diagram of the connection structure between the ejector rod and the sliding rod of a human tendon braiding and suturing device in Example 1;
[0051] Figure 12 Schematic diagram of the sliding cylinder structure of a human tendon braiding and suturing device in Example 1 Figure 1 ;
[0052] Figure 13 Schematic diagram of the sliding cylinder structure of a human tendon braiding and suturing device in Example 1 Figure 2 ;
[0053] Figure 14 Schematic diagram of the needle passing hole structure of a human tendon braiding and suturing device in Example 1 Figure 1 ;
[0054] Figure 15 Schematic diagram of the needle passing hole structure of a human tendon braiding and suturing device in Example 1 Figure 2 ;
[0055] Figure 16 Schematic diagram of the needle hole structure of a human tendon braiding and suturing device in Example 1 Figure 3 ;
[0056] Figure 17 Schematic diagram of the needle hole structure of a human tendon braiding and suturing device in Example 1 Figure 4 ;
[0057] Figure 18 Schematic diagram of the needle hole structure of a human tendon braiding and suturing device in Example 1 Figure 5 ;
[0058] Figure 19 Schematic diagram of the needle hole structure of a human tendon braiding and suturing device in Example 1 Figure 6 ;
[0059] Figure 20 Schematic diagram of the needle hole structure of a human tendon braiding and suturing device in Example 1 Figure 7 ;
[0060] Figure 21 Schematic diagram of the needle hole structure of a human tendon braiding and suturing device in Example 1 Figure 8 . DETAILED DESCRIPTION
[0061] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be pointed out that the embodiments described below are intended to facilitate the understanding of the present invention and do not have any limiting effect on the present invention.
[0062] Embodiment 1: A human tendon braiding and suturing device
[0063] The utility model provides a human tendon braiding and suturing device, such as Figure 1 As shown, it includes a slide cylinder 1 and a clamping element 2. The slide cylinder 1 is used for needle suturing and also includes a suturing end 5; the clamping element 2 is used to fix and grasp the tendon stump, and includes a pull rod 3, a slide rod 4, a V-shaped handle 6 and a push rod 7.
[0064] like Figures 2 to 4As shown in the figure, the V-shaped handle 6 and the ejector rod 7 are connected by a rotating shaft 8. On the inner side of the V-shaped handle 6 where it is held by hand, a rotary joint plate 9 is provided, which is rotationally connected through two connecting rods 10 and a connecting member 11. The connection sequence is rotary joint plate 9 - connecting rod 10 - connecting member 11 - connecting rod 10 - rotary joint plate 9. The two ends of the connecting member 11 are respectively hinged to the two connecting rods 10. As the V-shaped handle 6 is pressed or released, the connecting rod 10 drives the connecting member 11 to move horizontally back and forth. Since one end of the connecting member abuts against the spring 12, when the V-shaped handle 6 is pressed, the spring 12 is compressed, and the connecting rod 10 drives the connecting member 11 to move horizontally towards one end of the rotating shaft 8. When the V-shaped handle 6 is released, the spring 12 rebounds, and the connecting rod 10 drives the connecting member 11 to move horizontally away from one end of the rotating shaft 8. On the inner side of the rear connection of the V-shaped handle 6, an inclined surface 13 is provided for the maximum range of rotational movement after the V-shaped handle 6 is pressed. At the front end of the ejector rod 7, a conical structure 14 is provided. The conical structure 14 is provided with a guide hole 15 for cooperating with the connecting member 11 to ensure that the ejector rod 7 is always in the central position of the V-shaped handle 6 and ensure that the connecting member 11 always slides along the inner side of the guide hole 15. At the front end of the conical structure 14, a cylindrical structure 16 is also provided for connecting with a boss 41 provided on the inner side of the sliding nut 45. The V-shaped handle 6 is also provided with a hand pattern 42 for anti-slip.
[0065] As Figures 5 to 7 shown in the figure, the pull rod 3 is provided with a movable head 17. The movable head 17 is connected to the upper jaw clip 19 through a pin 18, and the other end of the pull rod 3 abuts against the connecting member 11. When the handle 6 is pressed forcefully, the connecting member 11 drives the pull rod 3 to move horizontally towards the rotating shaft 8, the spring 12 is compressed, and the upper jaw clip 19 closes. When the handle 6 is released, the spring 12 rebounds, and the connecting member 11 drives the pull rod 3 to rebound away from the rotating shaft 8, and the upper jaw clip 19 opens. Through the combined action of the pull rod 3, the movable head 17 and the upper jaw clip 19, the biting and opening actions of the upper jaw clip 19 are controlled. When the pull rod 3 moves horizontally, the upper jaw clip 19 rotates around the pin 18, thereby realizing the closing or opening of the upper jaw clip. The outer shape of the upper jaw clip 19 is an arc structure. At the arc end, evenly distributed long serrated teeth 20 are provided for the tendon stump to be stably and reliably clamped during the pulling process. On both sides of the arc, evenly distributed short serrated teeth 21 are provided for stably and reliably clamping the side of the tendon stump. The serrated structures at the end and on both sides of the arc structure of the upper jaw clip 19 achieve stable clamping of the triangular point structure clamping.
[0066] As Figures 8 to 11As shown, a lower jaw clip 44 is provided at the front end of the sliding rod 4, a sliding nut 45 is provided at the rear end, and cutting planes 22 are provided on both sides. The lower jaw clip 44 is connected to the upper jaw clip 19 by a pin 23. The lower jaw clip 44 is fixed at the end of the sliding rod 4 and cannot rotate, and is used to reliably and stably abut the tissue to be fixed when inserted horizontally. The lower jaw clip 44 and the upper jaw clip 19 have the same arc-shaped structure. Long serrated teeth 20 are provided at the arc-shaped ends, and short serrated teeth 21 are provided on both sides of the arc. Serrated teeth are provided on both the upper and lower jaw clips to make the clamping more stable and reliable. A slide rail 24 is provided on the cutting plane 22, and front stop holes 25 and rear stop holes 26 are provided at both ends of the slide rail 24. Through the combined action of the cutting plane 22 and the slide rail 24, the effect of the sliding cylinder 1 stably moving along the slide rail 24 on the fixed plane is achieved; the front stop hole 25 and the rear stop hole 26 provided on the cutting plane 22 act together to fix or clamp the sliding cylinder 1 at a fixed-distance position at both ends of the slide rail 24. A channel 27 is provided inside the sliding rod 4 for the horizontal movement of the pull rod 3; a guide plate 28 is provided inside the sliding nut 45 for the stable horizontal movement of the pull rod 3 in the channel 27 of the sliding rod 4. The design of the guide plate 28 realizes the stable guiding of the pull rod 3 and the stable abutment of the contact surface; a boss 41 is also provided inside the sliding nut 45. The cylindrical structure 16 and the boss 41 are complementary in shape, so they can be connected together for the fixed connection of the ejector rod 7 and the sliding rod 4. The sliding nut 45 is also provided with evenly distributed serrated lines 42 for anti-slip and easy movement during manual operation. The sliding rod 4 is also provided with a U-shaped hole 29, and the U-shaped hole 29 provides a certain displacement space for the movable head 17 to ensure the opening or closing of the upper jaw clip 19; a guide hole 30 is provided at the connection between the U-shaped hole 29 and the channel 27 of the sliding rod 4 for the stable transmission and limit of the pull rod 3. The design of the U-shaped hole 29 realizes the effective and stable movement of the movable head 17 within a fixed range, and further realizes the control of the opening or closing of the upper jaw clip 19. The pull rod 3 passes through the guide hole 30 at the connection between the U-shaped hole 29 and the channel 27 of the sliding rod 4. Through the guide hole 30, the pull rod 3 can be stably transmitted and limited.
[0067] As Figure 12 , 13As shown, the sliding cylinder 1 is provided with a through hole 31. The rear end of the sliding cylinder 1 is connected to a knurled nut 32 provided with a through hole 33 for the slide bar 4 to pass through. The knurled nut 32 and the sliding cylinder 1 are an integrally fixed structure. Two symmetric rectangular guide rails 34 are arranged inside the knurled nut 32. The rectangular guide rails 34 are provided with limit pins 35. The limit pins 35 include balls 36 embedded in the inner wall of the rectangular guide rails 34. When the present utility model is not used for operation, the balls 36 always abut against the front stop hole 25. When the present utility model is used, the balls 36 can only move fixedly on the slide rail 24 between the front stop hole 25 and the rear stop hole 26. Therefore, the sliding process of the sliding cylinder 1 is a fixed distance. The knurled nut 32 is also provided with evenly distributed teeth 43 for anti-slip during manual adjustment. The upper and lower sides of the sliding cylinder 1 are both provided with cut surfaces 37 for stable guiding. The sliding cylinder 1 is sleeved outside the slide bar 4. Through the combined action of the balls 36 of the limit pins 35 and the rectangular guide rails 34, the sliding cylinder 1 moves along the slide rail 24 between the front stop hole 25 and the rear stop hole 26 and is connected to the slide bar 3, realizing the fixed sliding of the sliding cylinder 1 on the slide bar 4. Further, in the case of clamping the tendon, the upper and lower mouth clamps are fixed through the sliding cylinder 1. The left and right sides and the upper and lower sides of the front end of the sliding cylinder 1 are respectively provided with a first needle passing hole 38 and a second needle passing hole 39 for needle passing to suture the broken tendon. The front end of the sliding cylinder 1 is also provided with symmetric U-shaped notches 40 on the upper and lower sides. When the upper and lower mouth clamps clamp the tendon fracture end, the tendon fracture segment will enter the U-shaped notches 40. The first needle passing holes 38 and the second needle passing holes 39 are distributed around the notches 40 for needle passing and suturing. The setting of the U-shaped notches enables the needle passing route and the suturing condition to be clearly observed during the suturing of the tendon fracture end, and the situation of the suture needle entering the wrong needle passing hole will not occur. On the other hand, to a certain extent, it can accommodate tendons with different volumes, which is suitable for suturing tendons with a size equivalent to or larger than the diameter of the cylinder wall. When the upper mouth clamp 19 is closed and the lower mouth clamp 44 clamps and fixes one end of the broken tendon, the sliding cylinder 1 will slide towards the upper and lower mouth clamps. At this time, the clamped and fixed tendon fracture end reaches the U-shaped notches 40 of the sliding cylinder 1. The first needle passing holes 38 are distributed on the left and right sides of the U-shaped notches 40, and the second needle passing holes 39 are distributed on the upper and lower sides adjacent to the bottom end of the U-shaped part of the U-shaped notches 40. The first needle passing holes 38 and the second needle passing holes 39 are used for suturing the broken tendon.
[0068] When using the human tendon braiding and suturing device of the present utility model, hold the device by hand, gradually move the clamping end 1 of the device closer to one end of the tendon at the broken end until it reaches the ideal position. Press the handle 6 with one hand, and at the same time, push the sliding nut 45 with the other hand, so that the ball 36 inside the limit pin 35 on the sliding nut 45 slides from the front stop hole 25 through the slide rail 24 to the rear stop hole 26. The limit pin 35 abuts against the rear stop hole 26. At this time, the spring 12 is compressed, and the connecting member 11 drives the pull rod 3 to move horizontally towards the end close to the rotating shaft 8. The upper jaw clip 19 closes, and the sliding cylinder 1 slides towards the jaw clip end. The tendon broken end fixed by the jaw clip is located in the U-shaped notch 40, and the tendon is sutured through the needle passing holes 38 and 39; slowly release the handle 6 with one hand, and push the sliding nut 45 with the other hand, so that the ball 36 inside the limit pin 35 on the sliding nut 45 slides from the rear stop hole 26 through the slide rail 24 to the front stop hole 25. At this time, the spring 12 rebounds, and the connecting member 11 drives the pull rod 3 to move horizontally away from the rotating shaft 8. The sliding cylinder 1 slides away from the jaw clip to its original position, and the upper jaw clip 19 opens; perform the same operation on the other end of the tendon rupture. After the suturing is completed, release the clamped tendon, tie and bind the thread ends of the two broken ends, and the operation is completed.
[0069] Different suture methods need to be matched with different wiring channels and needle passing holes. Different suture methods include continuous loop suture method, continuous overedge suture method, Bunnel suture method, etc. As Figures 14 to 21 shown, in this embodiment, taking the loop suture method as an example, the first needle passing hole 38 is distributed on the wiring channel 46. Multiple wiring channels 46 are arranged in parallel, and there are two or more needle passing holes on each wiring channel 46. The wiring channels 46 and the first needle passing hole 38 on the left and right sides are centrosymmetrically arranged. Using the present utility model, one end of the tendon rupture can be placed in the U-shaped notch 40 to start suturing. The two ends of the suture are respectively connected to the first suture needle and the second suture needle. The first suture needle enters from A0, passes through the tendon cross-section and comes out from the other side B0, then enters from B1, passes through the tendon cross-section and comes out from the other side B2. Further, it enters from C2 and comes out from C1, enters from A3 and comes out from A4, enters from C4 and comes out from C3, enters from B5 and comes out from B6. At this time, the first suture needle returns to the same side as the starting position ( Figure 17 ); the second suture needle enters from A1 and comes out from A2, enters from C1 and comes out from C2, enters from B3 and comes out from B4, enters from C3 and comes out from C4, enters from A5 and comes out from A6 ( Figure 18 ). After all the threading of the first suture needle and the second suture needle is completed, the first suture needle and the second suture needle are respectively located on both sides of the tendon rupture end ( Figure 19) Operate on the other end of the tendon rupture using the same wire routing method, and finally ligate and tie the wire ends at both ends. The second needle passage hole 39 is a fixed needle passage hole without a wire routing channel. Multiple rows of single fixed needle passage holes are arranged in parallel, with a different needle passage direction from that of the first needle passage hole 38. The second needle passage hole 39 only allows the suture needle and the suture to pass through the hole once. If it enters from the upper fixed needle passage hole, it can only come out from the corresponding lower fixed needle passage hole. The suture can be regarded as playing a fixing role on the tendon in the horizontal direction under the guidance of the needle passage hole and its wire routing channel of the first needle passage hole 38, while the second needle passage hole 39 can be regarded as playing a fixing role in the vertical direction of the tendon. It should be noted that a double needle is not necessarily required, and a single needle can also be used, that is, a suture needle needs to move back and forth left and right. The setting of the wire routing channel and the needle passage hole fixes the wire routing track of the suture needle and the distance between each needle passage, standardizes the tendon suture method, and makes the suture effect not depend on the experience of the operator.
[0070] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.
Claims
1. A human tendon braiding and suturing device, characterized in that, It includes a sliding cylinder and a clamping element. The sliding cylinder includes a suture end for suturing. The clamping element is used to fixedly clamp the tendon stump. When the clamping element fixedly clamps the tendon stump, the sliding cylinder and / or the clamping element are displaced so that the suture end of the sliding cylinder coincides with the tendon stump.
2. The human tendon braiding and suturing device according to claim 1, characterized in that, The sliding cylinder further includes a U-shaped notch, which provides an observation window for the tendon stump to be sutured; needle passing holes are arranged around the U-shaped notch.
3. The human tendon braiding and suturing device according to claim 2, wherein The sliding cylinder further includes a knurled nut and a cutting surface. Two symmetric rectangular guide rails are arranged inside the knurled nut. Limit pins are arranged on the rectangular guide rails. The limit pins include balls, which are embedded on the inner wall of the rectangular guide rails; the cutting surface is used for stable guiding.
4. The human tendon braiding and suturing device according to claim 3, wherein, The clamping element includes a sliding rod. Cutting planes are arranged on both sides of the sliding rod. Slide rails, a front stop hole and a rear stop hole are arranged on the cutting planes, and are used for the sliding cylinder to move along the slide rail between the front stop hole and the rear stop hole through the common action of the balls of the limit pins and the rectangular guide rails.
5. The human tendon braiding and suturing device according to claim 4, wherein The clamping element further includes a pull rod. The pull rod includes an upper mouth clip. The upper mouth clip is connected to the movable head of the pull rod through a pin. The movable head is used for the opening or closing of the upper mouth clip; the outer shape of the upper mouth clip is an arc structure. Uniformly distributed long serrated teeth are arranged at the arc end, and uniformly distributed short serrated teeth are arranged on both sides of the arc, which are used to stably and reliably clamp the tendon stump.
6. The human tendon braiding and suturing device according to claim 5, characterized in that The clamping element further includes a V-shaped handle and a push rod. The V-shaped handle is connected to the push rod through a rotating shaft, which is used to facilitate the exertion of force by the hand to control the grasping or loosening of the tendon stump; the V-shaped handle further includes two connecting rods and a connecting piece, which are screwed in sequence of handle - connecting rod - connecting piece - connecting rod - handle; one end of the connecting piece abuts against a spring, and the other end abuts against the pull rod.
7. The human tendon braiding and suturing device according to claim 6, wherein The push rod further includes a conical structure. A guide hole is arranged on the conical structure, which is used to cooperate with the connecting piece to ensure that the push rod is always in the center position of the V-shaped handle; an inclined surface is arranged inside the rotating shaft connection of the V-shaped handle.
8. The human tendon braiding and suturing device according to claim 7, characterized in that, The sliding rod further includes a lower mouth clip. The shape and structure of the lower mouth clip are the same as those of the upper mouth clip, and the lower mouth clip is connected to the upper mouth clip through a pin; the sliding rod further includes a sliding nut, which is used to fixedly connect with the push rod; a channel is arranged inside the sliding rod, and a guide plate is arranged inside the sliding nut, which is used for the pull rod to stably move horizontally in the channel of the sliding rod.
9. The human tendon braiding and suturing device according to claim 8, wherein, The sliding rod is further provided with a U-shaped hole, which provides a certain displacement space for the movable head to ensure the opening or closing of the upper mouth clip; a guide hole is arranged at the connection of the U-shaped hole and the channel of the sliding rod, which is used for the stable transmission and limit of the pull rod.
10. The human tendon braiding and suturing device according to claim 9, wherein, The V-shaped handle is further provided with hand patterns for anti-slip; the sliding nut is also provided with evenly distributed serrated patterns for anti-slip and easy movement during manual operation; the knurled nut is also provided with evenly distributed teeth for anti-slip during manual adjustment.