Tendon suturing auxiliary device

Abstract

The invention relates to the technical field of medical instruments, in particular to a tendon suture auxiliary device which comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly adopt the same structural design, the first clamping assembly comprises a lower clamping plate and an upper clamping plate, and fixing needles are fixedly arranged on the inner walls of the lower clamping plate and the upper clamping plate; a magnetic buckle protrusion is arranged on the outer wall of the upper clamping plate, a magnetic buckle groove corresponding to the magnetic buckle protrusion in position is fixedly formed in the outer wall of the lower clamping plate, the hinge is fixedly connected with a supporting arm, the supporting arm is movably sleeved with a threaded pull rod, the outer surface of the threaded pull rod is in threaded connection with a magnetic nut, and an arc-shaped handle is fixedly arranged on the outer wall of the upper clamping plate. The telescopic positioner is arranged on the inner wall of the pin sleeve in a sleeved mode, the distance between the first clamping assembly and the near-end tendon and the distance between the second clamping assembly and the far-end tendon are adjusted to be shortened through rotation of the magnetic attraction nut, and the telescopic positioner is arranged to limit the clamping assemblies to ensure good involution of the broken ends of the tendons.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a tendon suturing auxiliary device. Background Art

[0002] Tendon injuries are very common in sports injuries, accidental trauma and some degenerative diseases. Hand tendon injuries also often occur in work accidents or some accidents in daily life. With the diversification of people's lifestyles and the popularization of sports and fitness, the incidence of tendon injuries has been increasing year by year. Tendon tissue has unique physiological characteristics. It has a tough texture but relatively little blood supply, which makes tendon suture surgery face many difficulties. Doctors need to accurately align the two ends of the broken tendon and ensure that the tension of the suture line is moderate to avoid affecting the healing of the tendon and the subsequent functional recovery, making the tendon end narrow in the surgical field of view, which increases the difficulty of the operation.

[0003] In the existing clinical tendon connection surgery, the tendon stump is clamped out of the wound with a hemostat, and then the syringe needle is used as a fixing tool to fix the tendon stump to the surrounding tissue, and then the tendon is sutured. This traditional method has many disadvantages in clinical practice. For example, the syringe needle is easily removed when fixed to the surrounding tissue, and may also damage other blood vessels and nerves in the surrounding tissue. For example, the use of hemostat, syringe needle and other components for fixation and stretching are separate components that need to be operated separately, which is cumbersome and will increase the difficulty of the surgical operation, thereby affecting the safety and efficiency of the operation. The assembly and disassembly processes of the various components before and after the operation are cumbersome, and doctors are prone to fatigue during long-term operations. The external surface and structural shape of the components are not easy to pick up, and there is a possibility of components slipping.

[0004] Therefore, it is necessary to develop a device that can conveniently adjust the distance between the tendon ends and has good limiting measures so that the end faces of the tendon ends can be stably and effectively translated together, which is beneficial to the doctor's suturing operation and ensures that the tendon ends are tightly connected. At the same time, it can make the surface of the tendon after suturing relatively smooth and reduce the occurrence of adhesion. This has positive significance for clinical surgery and helps doctors complete suturing operations more quickly and accurately, thereby improving the efficiency and quality of the operation. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a tendon suturing auxiliary device, which can effectively solve the problems of the prior art in which the tendon ends must be aligned neatly to ensure moderate tension of the suture line and the large number of operating steps required for doctors to operate various components.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a tendon suturing auxiliary device, comprising a first clamping assembly and a second clamping assembly, wherein the first clamping assembly and the second clamping assembly adopt the same structural design, wherein the first clamping assembly comprises a lower splint and an upper splint, wherein the lower splint and the upper splint are connected into a whole by being hinged, wherein the inner walls of the lower splint and the upper splint are fixedly provided with fixing needles, and one side of the lower splint and the upper splint is provided with a plurality of suturing guide holes, wherein the suturing guide holes are used for passing sutures of the tendon stumps, wherein the outer wall of the upper splint is provided with a magnetic buckle protrusion, wherein the magnetic buckle protrusion is hinged to the upper splint, and the outer wall of the lower splint is fixedly provided with a magnetic buckle groove corresponding to the position of the magnetic buckle protrusion, wherein the hinge is fixedly connected with a support arm, wherein the movable sleeve of the support arm is provided with a threaded pull rod, and the outer surface of the threaded pull rod is threadedly connected with a magnetic nut.

[0007] Preferably, an arc-shaped handle is fixedly provided on the outer wall of the upper clamping plate, a pin sleeve is fixedly provided on the outer wall of the lower clamping plate, a telescopic positioner is provided on the inner wall of the pin sleeve, a nut is fixedly provided on the end face of the threaded pull rod, the outer surface of the nut contacts the outer surface of the support arm on the first clamping assembly, and the outer surface of the lower part of the lower clamping plate is provided with an anti-slip texture.

[0008] Preferably, the telescopic positioner includes a first conical pin and a second conical pin which are interference-connected with the inner wall of the pin sleeve, and the first conical pin and the second conical pin are slidably connected with a sliding rod, and the sliding rod is used to connect the first conical pin and the second conical pin into a whole, and the sliding rod sliding into the interior of the first conical pin or the second conical pin will shorten the distance between the two.

[0009] Preferably, a screw is threadedly connected to the inner wall of the second conical pin, a strip knob is fixedly provided at one end of the first conical pin, and radial dimensions of the strip knob and the screw are greater than the maximum radial dimension of the pin sleeve.

[0010] Preferably, the fixing pins arranged on the inner wall of the lower clamping plate are staggered with the fixing pins arranged on the inner wall of the second clamping assembly, and the fixing pins arranged on the inner wall of the lower clamping plate are close to the positions of the magnetic buckle grooves.

[0011] Preferably, the bump on the magnetic buckle protrusion is buckled with the inner wall of the magnetic buckle groove, and the material used for the inner wall of the magnetic buckle groove and the bump on the magnetic buckle protrusion is ferrite.

[0012] Preferably, the magnetic buckle protrusion and the magnetic buckle groove cooperate to form a locking mechanism for the lower splint and the upper splint in a closed state, the fixing needle is used to insert into the tendon tissue, the first clamping assembly is fixedly connected to the proximal tendon through the locking mechanism, and the second clamping assembly is fixedly connected to the distal tendon through the locking mechanism.

[0013] Preferably, the threaded pull rod comprises a smooth rod and a fine-pitch threaded rod slidably connected to the support arm, the end face of the fine-pitch threaded rod is fixedly connected to the end face of the smooth rod, and the inner wall of the threaded pull rod movably sleeved on the support arm is coated with stainless steel.

[0014] Preferably, a fixing block is fixedly provided on the outer surface of the upper clamping plate, the arc-shaped handle passes through the interior of the fixing block, and the outer surface of the arc-shaped handle is fixedly connected to the inner surface of the fixing block.

[0015] Preferably, the head of the screw is provided with a slot, and the inner wall of the second conical pin is provided with a threaded hole matching the screw.

[0016] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. The present invention provides fixing needles on the inner walls of the lower splint and the upper splint, thereby avoiding tissue damage caused by needle fixation. The lower splint and the upper splint are provided with a hinged opening and closing design, and the magnetic buckle protrusion and the magnetic buckle groove cooperate to form a buckle structure, so that the device is convenient for installing and disassembling the broken tendon. The outer surface of the threaded pull rod is threadedly connected with a magnetic nut, which is a threaded adjustment mechanism movably sleeved between the first clamping component and the second clamping component. As the nut rotates, the distance between the proximal tendon fixedly connected to the first clamping component and the distal tendon fixedly connected to the second clamping component is shortened, which is beneficial to ensure the accurate control of the distance between the broken ends to facilitate the preset suture guide hole and standardize the suture operation, thereby reducing the difficulty of fixing the broken tendon with a syringe needle and stretching it with hemostatic forceps, thereby improving the safety and efficiency of the operation.

[0017] 2. The present invention sets a telescopic positioner to limit the first clamping component and the second clamping component. During the process of fixing and stretching the broken tendon, the tendon will not rotate because it is sleeved on the surface of the threaded pull rod, thereby ensuring good alignment of the tendon ends and providing a stable healing environment for the tendon in the early postoperative period. An arc-shaped handle is set to facilitate doctors to open the upper splint without using their fingers to avoid fingers being pricked by fixing needles. An anti-slip texture is set to increase the touch and friction when grasping with hands to avoid falling off during use. A threaded connection method of a screw and a magnetic nut is set, so that the threaded pull rod and the telescopic positioner are sleeved on the clamping component. The assembly and disassembly process of each component only requires rotating the two threadedly connected components, thereby improving the convenience of assembling or disassembling components for doctors before or after surgery and avoiding the risks caused by operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a first schematic diagram of the overall structure of the present invention; Figure 2 It is a second schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic top view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the anti-slip texture plane structure of the present invention; Figure 5 This is a schematic diagram of the first conical pin structure of the present invention.

[0020] Figure numerals: 1. first clamping assembly; 2. second clamping assembly; 3. lower clamping plate; 4. fixing needle; 5. suture guide hole; 6. magnetic buckle protrusion; 7. magnetic buckle groove; 8. hinge; 9. support arm; 10. upper clamping plate; 11. arc handle; 12. threaded pull rod; 13. telescopic positioner; 14. nut; 15. bar knob; 16. anti-slip texture; 18. first conical pin; 19. second conical pin; 20. sliding rod; 21. pin sleeve; 22. screw; 23. proximal tendon; 24. distal tendon; 25. magnetic nut; 26. smooth rod; 27. fine threaded rod; 28. fixing block; 29. ​​slot. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention will be further described below in conjunction with the embodiments. Example

[0023] Reference Figures 1 to 5A tendon suturing auxiliary device comprises a first clamping assembly 1 and a second clamping assembly 2. The first clamping assembly 1 and the second clamping assembly 2 adopt the same structural design. The first clamping assembly 1 comprises a lower splint 3 and an upper splint 10. The lower splint 3 and the upper splint 10 are connected as a whole by a hinge 8. The inner walls of the lower splint 3 and the upper splint 10 are fixed with fixing needles 4. One side of the lower splint 3 and the upper splint 10 is provided with a plurality of suturing guide holes 5. The suturing guide holes 5 are used for passing the suture of the tendon stump. The outer wall of the upper splint 10 is provided with a magnetic card Buckle protrusion 6, magnetic buckle protrusion 6 is hinged with upper clamp plate 10, the outer wall of lower clamp plate 3 is fixedly provided with magnetic buckle groove 7 corresponding to the position of magnetic buckle protrusion 6, the clamp plate is reliably locked by the buckle structure to ensure the fixing effect, hinge 8 is fixedly connected with support arm 9, support arm 9 movable sleeve is provided with threaded pull rod 12, the outer surface of threaded pull rod 12 is threadedly connected with magnetic nut 25, and the distance between the first clamping assembly 1 fixedly connected to the proximal tendon 23 and the second clamping assembly 2 fixedly connected to the distal tendon 24 is shortened by rotating the magnetic nut 25; The fixing needles 4 arranged on the inner wall of the lower splint 3 are staggered with the fixing needles 4 arranged on the inner wall of the second clamping assembly 2. The fixing needles 4 arranged on the inner wall of the lower splint 3 are close to the magnetic buckle groove 7. The fixing needles 4 are staggered in front and back positions to avoid needle tip collision and can be inserted into the tendon tissue in the opposite direction and at different positions of the tendon, thereby increasing the force strength that the tendon fixation can withstand. The convex block on the magnetic buckle protrusion 6 is buckled with the inner wall of the magnetic buckle groove 7. The material used for the inner wall of the magnetic buckle groove 7 and the convex block of the magnetic buckle protrusion 6 is ferrite. The buckle structure formed by the magnetic buckle protrusion 6 and the magnetic buckle groove 7 makes the device easy to install and remove for the broken tendon. The magnetic buckle protrusion 6 and the magnetic buckle groove 7 cooperate to form a locking mechanism for the lower splint 3 and the upper splint 10 in a closed state, the fixing needle 4 is used to insert the tendon tissue, the first clamping assembly 1 is fixedly connected to the proximal tendon 23 through the locking mechanism, and the second clamping assembly 2 is fixedly connected to the distal tendon 24 through the locking mechanism; The threaded pull rod 12 includes a smooth rod 26 and a fine-pitch threaded rod 27 which are slidably connected to the support arm 9. The end face of the fine-pitch threaded rod 27 is fixedly connected to the end face of the smooth rod 26. The fine-pitch thread of the fine-pitch threaded rod 27 has a smooth outer surface. The fine-pitch thread is a type of thread with the smoothest tooth profile and a relatively small pitch. Its important characteristics are small torque, high pressure resistance, and the ability to connect tighter components within a limited inner and outer diameter space. The inner wall of the threaded pull rod 12 that is movably sleeved on the support arm 9 is made of stainless steel. The coating on medical devices mainly plays multiple roles such as increasing surface smoothness, improving corrosion resistance, and enhancing wear resistance. Through coating treatment, the surface performance of medical devices can be significantly improved, their service life can be extended, and cleaning and maintenance can be facilitated. Example

[0024] Reference Figures 1 to 5 On the basis of Example 1, the tendon suturing auxiliary device provided by the present invention has an arc-shaped handle 11 fixedly provided on the outer wall of the upper splint 10, a pin sleeve 21 fixedly provided on the outer wall of the lower splint 3, a telescopic positioner 13 sleeved on the inner wall of the pin sleeve 21, a nut 14 fixedly provided on the end face of the threaded pull rod 12, the outer surface of the nut 14 contacts the outer surface of the support arm 9 on the first clamping assembly 1, and an anti-slip texture 16 is provided on the outer surface of the lower part of the lower splint 3. The arc-shaped handle 11 is provided to facilitate the doctor to open the upper splint 10 without using the fingers to move the upper splint 10, so as to avoid the fingers being pricked by the fixing needle 4. The anti-slip texture 16 is provided to increase the touch and friction when grasping by hand to avoid falling off during use; The telescopic positioner 13 includes a first conical pin 18 and a second conical pin 19 which are interference-connected with the inner wall of the pin sleeve 21. The conical pins position the clamping assembly so that it will not shake at the position of the threaded pull rod 12. The first conical pin 18 and the second conical pin 19 are slidably connected with a slide bar 20. The slide bar 20 is used to connect the first conical pin 18 and the second conical pin 19 into a whole. The slide bar 20 slides into the first conical pin 18 or the second conical pin 19 to shorten the distance between the two. The conical pin has a taper of 1:50 and has good self-locking property, which makes it very convenient to install and relatively simple to disassemble. The inner wall of the second conical pin 19 is threadedly connected with a screw 22, and one end of the first conical pin 18 is fixedly provided with a bar knob 15, and the radial dimensions of the bar knob 15 and the screw 22 are larger than the maximum radial dimension of the pin sleeve 21. The arrangement facilitates the disassembly during the process of grabbing the bar knob 15 and the screw 22 and rotating them, and the disassembly process of the positioning assembly can be completed by pushing or knocking the interference fit connection position between the conical pin and the pin sleeve 21 to loosen; A fixing block 28 is fixedly arranged on the outer surface of the upper clamping plate 10, and the arc handle 11 passes through the interior of the fixing block 28, and the outer surface of the arc handle 11 is fixedly connected to the inner surface of the fixing block 28; by setting the fixing block 28, the arc handle 11 is inserted into the interior for fixed welding, and this structural setting makes the mechanical properties of the medical device more superior and reduces the possibility of breakage; The head of the screw 22 is provided with a slot 29, and the inner wall of the second conical pin 19 is provided with a threaded hole matching the screw 22. The design of the slot 29 at the head notch can better fix the screw 22, thereby achieving a more reliable fastening effect and effectively preventing loosening due to vibration or other factors. The use of tools such as a wrench or a screwdriver can facilitate the rotation of the screw 22 for fixed installation.

[0025] The working principle of the present invention is as follows: When the broken tendon needs to be fixed and stretched during the operation, the magnetic buckle protrusion 6 and the magnetic buckle groove 7 cooperate to form a buckle structure, and then the rotation of the nut shortens the distance between the first clamping component 1 fixedly connected to the proximal tendon 23 and the second clamping component 2 fixedly connected to the distal tendon 24; in order to ensure the precise control of the distance between the broken ends to facilitate the preset suturing operation, the conical pin positions the clamping component at the position of the threaded pull rod 12 so that it will not shake; after the operation, when the clamping component can be disassembled to fix the tendon, the magnetic buckle protrusion 6 and the magnetic buckle groove 7 are turned over, and then the arc handle 11 is grasped to facilitate opening the splint. The anti-slip texture 16 and the telescopic positioner 13 are set to facilitate grasping. The device is cleaned with pure water and then placed in alcohol for disinfection. The threaded connection position of the screw 22 and the magnetic nut 25 can also be further rotated to complete the detailed disassembly process of large and small components.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like are based on the orientations or positional relationships shown in the accompanying drawings, which 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, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A tendon suturing auxiliary device, characterized in that: The invention comprises a first clamping assembly (1) and a second clamping assembly (2), wherein the first clamping assembly (1) and the second clamping assembly (2) have the same structural design, wherein the first clamping assembly (1) comprises a lower clamping plate (3) and an upper clamping plate (10), wherein the lower clamping plate (3) and the upper clamping plate (10) are connected to form a whole by a hinge (8), wherein the inner walls of the lower clamping plate (3) and the upper clamping plate (10) are fixedly provided with fixing needles (4), and a plurality of suture guide holes (5) are provided on one side of the lower clamping plate (3) and the upper clamping plate (10). The suture guide hole (5) is used for passing the suture of the tendon stump, the outer wall of the upper splint (10) is provided with a magnetic buckle protrusion (6), and the magnetic buckle protrusion (6) is hinged to the upper splint (10), and the outer wall of the lower splint (3) is fixedly provided with a magnetic buckle groove (7) corresponding to the position of the magnetic buckle protrusion (6), the hinge (8) is fixedly connected with a support arm (9), and the support arm (9) is movablely sleeved with a threaded pull rod (12), and the outer surface of the threaded pull rod (12) is threadedly connected with a magnetic nut (25).

2. A tendon suturing auxiliary device according to claim 1, characterized in that: The outer wall of the upper clamping plate (10) is fixedly provided with an arc-shaped handle (11), the outer wall of the lower clamping plate (3) is fixedly provided with a pin sleeve (21), the inner wall of the pin sleeve (21) is provided with a telescopic positioner (13), the end surface of the threaded pull rod (12) is fixedly provided with a nut (14), the outer surface of the nut (14) contacts the outer surface of the support arm (9) on the first clamping assembly (1), and the outer surface of the lower part of the lower clamping plate (3) is provided with an anti-slip texture (16).

3. A tendon suturing auxiliary device according to claim 2, characterized in that: The telescopic positioner (13) comprises a first conical pin (18) and a second conical pin (19) which are interference-connected with the inner wall of the pin sleeve (21); the first conical pin (18) and the second conical pin (19) are slidably connected with a slide rod (20); the slide rod (20) is used to connect the first conical pin (18) and the second conical pin (19) into a whole; and the slide rod (20) slides into the interior of the first conical pin (18) or the second conical pin (19), thereby shortening the distance between the two.

4. A tendon suturing auxiliary device according to claim 3, characterized in that: The inner wall of the second conical pin (19) is threadedly connected to a screw (22), and a strip-shaped knob (15) is fixedly provided at one end of the first conical pin (18), wherein radial dimensions of the strip-shaped knob (15) and the screw (22) are greater than the maximum radial dimension of the pin sleeve (21).

5. A tendon suturing auxiliary device according to claim 2, characterized in that: The fixing pins (4) arranged on the inner wall of the lower clamping plate (3) and the fixing pins (4) arranged on the inner wall of the second clamping assembly (2) are arranged at an interlaced position, and the fixing pins (4) arranged on the inner wall of the lower clamping plate (3) are located close to the magnetic buckle groove (7).

6. A tendon suturing auxiliary device according to claim 1, characterized in that: The protrusion on the magnetic buckle protrusion (6) is buckled and connected with the inner wall of the magnetic buckle groove (7), and the material used for the inner wall of the magnetic buckle groove (7) and the protrusion of the magnetic buckle protrusion (6) is ferrite.

7. A tendon suturing auxiliary device according to claim 1, characterized in that: The magnetic buckle protrusion (6) and the magnetic buckle groove (7) cooperate to form a locking mechanism for the lower clamp (3) and the upper clamp (10) in a closed state, the fixing needle (4) is used to insert into tendon tissue, the first clamping component (1) is fixedly connected to the proximal tendon (23) through the locking mechanism, and the second clamping component (2) is fixedly connected to the distal tendon (24) through the locking mechanism.

8. A tendon suturing auxiliary device according to claim 1, characterized in that: The threaded pull rod (12) comprises a smooth rod (26) and a fine-pitch threaded rod (27) movably mounted on the support arm (9); the end surface of the fine-pitch threaded rod (27) is fixedly connected to the end surface of the smooth rod (26); and the inner wall of the support arm (9) and the threaded pull rod (12) movably mounted thereon is coated with stainless steel.

9. A tendon suturing auxiliary device according to claim 2, characterized in that: A fixing block (28) is fixedly provided on the outer surface of the upper clamping plate (10), the arc-shaped handle (11) passes through the interior of the fixing block (28), and the outer surface of the arc-shaped handle (11) is fixedly connected to the inner surface of the fixing block (28).

10. A tendon suturing auxiliary device according to claim 4, characterized in that: The head of the screw (22) is provided with a slot (29), and the inner wall of the second conical pin (19) is provided with a threaded hole adapted to the screw (22).

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