Self-overturning button system for unilateral incision minimally invasive tibiofibular syndesmosis

Abstract

The invention relates to a self-overturning button system for unilateral incision minimally invasive tibiofibular syndesmosis, and relates to the technical field of orthopedic surgeries, the button system comprises a rod body, a guide mechanism, a containing hole and a passing hole, the guide rod is detachably arranged at one end of the rod body, is provided with a guide hole for a surgical suture to penetrate through and is used for guiding the surgical suture to penetrate through the bone hole, so that two free ends of the surgical suture penetrate through the accommodating hole to extend to the outer side of the rod body after the surgical suture penetrates through the guide hole; the cap head is used for fixing the two free ends, extending to the outer side of the rod body, of the operation line and is connected with a steel plate used during fracture reduction. The guide head and the operation line penetrate through the bone hole through the rod body, so that the guide head rotates and is clamped and installed at the bone hole, the operation line is pulled to reset the fracture part, finally, the operation line is knotted and fixed, and the operation difficulty and risk are greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of orthopedic surgery, and in particular to a self-flipping button system for a minimally invasive tibiofibular syndesmosis with a unilateral incision. Background Art

[0002] The ankle joint bears a great load when people are standing, walking, running and jumping. The tibiofibular syndesmosis is of great significance to maintaining the integrity and stability of the ankle joint. The tibia and fibula are the joints of the tibia and fibula, which are the bones of the leg. Single fracture of the tibia, double fracture of the tibia and fibula, and single fracture of the fibula are the most common fractures in the whole body. Because of the close physiological position and the frequent complications of injuries, they are collectively called tibia and fibula fractures.

[0003] At present, when reducing and fixing the fracture site during tibia and fibula fracture surgery, the tibia and fibula are first drilled to obtain bone holes, then external fixators such as steel plates are used, and finally internal fixation is achieved through threading. Threading fixation technology has attracted widespread attention due to its advantages such as less interference with the fracture site and shorter recovery period.

[0004] In the prior art, it is usually necessary to pre-bury an operating wire, and then pass the surgical wire through the bone hole through the operating wire, and then thread and knot the surgical wire by pulling the two ends of the surgical wire. During the operation, the shaking caused by manual pulling may have an adverse effect on the reduction of the fracture site, and it is difficult to accurately control the threading depth and position, which makes the surgical operation inconvenient and increases the difficulty and risk of the operation. Summary of the invention

[0005] In order to reduce the difficulty and risk of surgery, the present application provides a self-flipping button system for minimally invasive tibiofibular syndesmosis with a unilateral incision.

[0006] The unilateral incision minimally invasive tibiofibular joint self-flip button system provided in this application adopts the following technical solutions: A self-flip button system for minimally invasive tibiofibular syndesmosis with unilateral incision includes a rod body and a guiding mechanism arranged on the rod body, wherein a receiving hole and a passage hole penetrating the rod body are provided on the rod body, and the guiding mechanism includes: The guide head is detachably arranged on one end of the rod body through a connecting assembly and is provided with a guide hole for the surgical thread to pass through and is used to guide the surgical thread to pass through the bone hole, so that after the surgical thread passes through the guide hole, the two free ends pass through the receiving hole and extend to the outside of the rod body; the connecting assembly passes through the receiving hole and is threadedly connected with the guide head and is used to press the surgical thread against the receiving hole for positioning; the guide head is arranged parallel to the axis of the rod body in an initial state, and when the guide head passes through the bone hole, the connecting assembly is separated from the guide head and the guide head is pushed to rotate a certain angle and then clamped at the bone hole for positioning, and the connecting assembly is removed from the rod body and the surgical thread is removed through the passage hole; The cap head is used to fix the two free ends of the surgical wire extending to the outside of the rod body and connect them with the steel plate used for fracture reduction.

[0007] By adopting the above technical solution, the surgical wire is passed through the guide hole, and then the surgical wire is placed into the accommodating hole through the passing hole, and then the two free ends of the surgical wire are passed through the end of the rod body away from the guide head. The surgical wire pulls the guide head against the rod body for positioning, and then the connecting component is passed through the accommodating hole and threadedly connected with the guide head. The surgical wire is pulled to tighten the surgical wire, and the connecting component is pressed against the surgical wire for positioning. The two free ends of the surgical wire are passed through the cap head and fixed, so as to install the button system.

[0008] The guide head is passed through the bone hole by holding the rod body, so that the guide head and the surgical thread are moved from one side of the fracture site to the other side, the connecting component is rotated to disengage from the guide head, and then the connecting component is moved back to push the guide head and the surgical thread to pass through the bone hole. At the same time, since the surgical thread passes through the guide hole, the surgical thread is located on one side of the connecting component. After the guide head passes through the bone hole, the connecting component pushes the guide head to easily rotate the guide head, thereby facilitating the guide head to be clamped and installed at the bone hole or on the tissue located at the bone hole for positioning. At the same time, pulling the cap head and the surgical thread can press the guide head against the bone for positioning, then the cap head is connected to the steel plate, the surgical thread is pulled to reduce the fracture site, and finally the surgical thread is knotted and fixed.

[0009] The rod body can be used to facilitate passing the surgical wire through the bone hole, and when the angle needs to be rotated, it can be achieved by rotating the rod body. Finally, the fracture is reduced through the guide head and the cap head, thereby improving the convenience of the surgical operation and facilitating the control of the threading depth and position, thereby greatly reducing the difficulty and risk of the operation.

[0010] Optionally, the connection component includes: A guide rod passes through the receiving hole and is threadedly connected to the guide head and is pressed against the surgical thread for positioning; The pull ring is arranged on the guide rod so as to drive the guide rod to move and make the guide head and the pull ring respectively abut against the two ends of the rod body for positioning.

[0011] By adopting the above technical solution, the pull ring is manually held to pass the guide rod through the accommodating hole and then abut it against the guide head. The pull ring is rotated to make the guide rod and the guide head threadedly connected, so that the guide head abuts against one end of the rod body and the pull ring abuts against the other end of the rod body for positioning.

[0012] Optionally, positioning pieces are clamped and installed on the accommodating hole and the passing hole, and a plurality of elastic pieces are arranged on the positioning piece in a circular array around the axis of the rod body. The rod body and the guide rod are made of metal material and the elastic piece is made of non-metallic material. Two adjacent elastic pieces and positioning pieces cooperate to form a plurality of passing chambers for the surgical thread to pass through, and the guide rod is pressed against the elastic piece so that the elastic piece is pressed against the surgical thread for positioning.

[0013] By adopting the above technical solution, the guide rod and the rod body are both made of metal material. Therefore, if the gap between the two is small, the positioning effect of the surgical line can be increased, but it is also easy to cause wear between the two, and it is not convenient to insert the guide rod into the receiving hole, thereby reducing the convenience during operation.

[0014] Through multiple passage chambers, surgical threads at different angles can be arranged separately in the accommodating hole, so that the position of the surgical thread corresponds to the position of the guide head, so that the surgical thread can better adapt to fracture reduction during use. At the same time, the elastic member is made of non-metallic material, which can greatly improve the elastic performance and reduce the wear caused by the contact between the metal material and the guide rod. It is also convenient for the guide rod to be inserted between multiple elastic members. The guide rod presses against the elastic member to position itself, and the elastic member presses against the surgical thread to position the surgical thread again, which greatly improves the positioning effect of the surgical thread and the guide rod, and also greatly improves the convenience during the operation and reduces the difficulty and risk of the operation.

[0015] After the guide rod passes through multiple elastic parts, when the guide rod rotates and is threadedly connected to the guide head, the rotation of the guide rod will exert force on the elastic part but not on the surgical line, thereby reducing the probability that the position of the surgical line will change due to the rotation of the guide rod. At the same time, the positioning part is clamped on the pass hole to reduce the probability of the positioning part rotating, and the surgical line is located in the pass chamber, thereby further reducing the probability of the surgical line position changing, making the position of the surgical line more accurate, and further reducing the difficulty and risk of the operation.

[0016] Optionally, the guide head includes a guide part, an annular part and a connecting part which are connected in sequence, the width of the guide part and the connecting part are both smaller than the outer diameter of the annular part and the annular part protrudes outside the guide part and the connecting part, the guide hole is located on the annular part, and the connecting part is threadedly connected to the guide rod.

[0017] By adopting the above technical solution, the annular portion protrudes, so that the guide hole can be designed to be larger to facilitate the passage of the surgical line, and it is also convenient for the annular portion to be positioned against the rod body, while the width of the guide portion is smaller, so it is convenient for the guide portion to pass through the bone hole for guidance, thereby further improving the convenience during the operation and reducing the difficulty and risk of the operation.

[0018] Optionally, a rotation groove for the connecting part to rotate into the accommodating hole is provided on the rod body and located at the guide part, and an arc-shaped guide angle is formed at one end of the guide part away from the arc part for guiding.

[0019] By adopting the above technical solution, the guide part is rotated into the accommodating hole through the rotating groove, and the guide part is threadedly connected to the guide rod. After the guide rod is rotated and disengaged from the guide part, the guide rod moves back to push the guide head out of the rotating groove. At the same time, the annular part abuts against the rod body and the guide part can be rotated out of the rotating groove, so that the guide part can rotate with the contact point between the annular part and the rod body as the rotating point, reducing the probability of the guide head not rotating, so that the guide head can rotate according to the set requirements, thereby improving the stability during the operation and reducing the difficulty and risk of the operation.

[0020] The guide angle is used for guidance, making the guide head more convenient in the process of movement, improving the convenience during the operation and reducing the difficulty and risk of the operation.

[0021] Optionally, the cap head comprises: The conical part and the cylindrical part are coaxially connected, the conical part is provided with a receiving groove, and the side wall of the cylindrical part is provided with a plurality of connecting holes connected with the receiving groove. The two free ends of the surgical thread respectively pass through the two connecting holes and then pass through the receiving groove to be knotted, and the knot is located in the receiving groove for storage.

[0022] By adopting the above technical solution, the two free ends of the surgical thread are sequentially passed through the two connecting holes and the receiving groove and then extended out of the receiving groove. A knot is firstly tied in advance to prevent the cap head from falling off. After the guide head is installed in place and the surgical thread is removed from the rod body, the cylindrical part is installed on the steel plate. Finally, the surgical thread is knotted again to be fixed, and the knot head is located in the receiving groove for storage. Finally, the excess surgical thread is cut off.

[0023] Through multiple connecting holes, it is possible to separate the different free ends of the surgical thread. Finally, the connecting parts of the two free ends of the surgical thread are located in the accommodating groove, and the surgical thread will be pressed against the side wall of the connecting hole when being pulled, thereby reducing the probability of the surgical thread sliding away quickly, improving the convenience during the operation of the surgical thread, especially during the knotting and fixing process, and further reducing the difficulty and risk of the operation.

[0024] Optionally, a plurality of wire clamping grooves for the free ends of surgical wires to pass through are arranged in a circular array around the axis of the rod body on the outer side wall of the rod body.

[0025] By adopting the above technical solution, multiple wire clamping grooves are used for surgical wires to pass through multiple locations, so that surgical wires at different angles can be moved as required, reducing the probability of surgical wires being entangled with each other and improving the convenience during the operation; the guide rod presses the surgical wire against the accommodating hole, and after the surgical wire is moved out through the wire clamping groove, the direction of the surgical wire changes during the movement, that is, the surgical wire is pressed against the wire clamping groove, thereby further improving the positioning effect of the surgical wire and reducing the difficulty and risk of the operation.

[0026] Optionally, the plurality of wire clamping grooves are arranged in a staggered manner with respect to the through hole.

[0027] By adopting the above technical solution, the wire clamping groove and the passage hole are misaligned, so that the surgical wire cup forms a certain distance from the passage hole when pressed in the accommodating hole, thereby reducing the probability of the surgical wire detaching from the passage hole, allowing the surgical wire to exist at a set angle, further improving the convenience of the surgical wire operation process, and reducing the difficulty and risk of the operation.

[0028] Optionally, one end of the surgical wire passes through the connecting hole and the receiving groove in sequence, and the other end of the surgical wire passes through two connecting holes, the wire clamping groove, the receiving hole, the guide hole in sequence, and then passes through the receiving hole, the wire clamping groove, the connecting hole and the receiving groove again, and then the two ends are knotted.

[0029] By adopting the above technical solution, the surgical thread is thinner and is prone to slipping during the pulling process. Therefore, a greater force needs to be used when pulling to prevent the surgical thread from sliding quickly, which increases the difficulty of the surgical thread operation process.

[0030] One end of the surgical wire can be pressed against one or several places in the connecting hole, the wire clamping groove and the guide hole when subjected to tension, thereby reducing the probability of the surgical wire sliding quickly after being subjected to tension, improving the convenience during the operation, and reducing the difficulty and risk of the operation; and the surgical wire located between the cap head and the guide head is increased from one circle to two circles, thereby improving the stability of the cap head and the guide head after fracture reduction, and improving the reduction effect of the fracture.

[0031] Optionally, a handle in the form of a regular hexagon is detachably provided at one end of the rod body close to the pull ring, and the pull ring is pressed against the handle for positioning.

[0032] By adopting the above technical solution, the handle is used to facilitate the operation of the rod body. At the same time, the handle does not need to pass through the bone hole, so the handle size can be designed to be larger and easier to hold. The pull ring is against the handle for positioning, so the thickness of the handle is larger than that against the rod body, thereby reducing the probability of the pull rod causing damage to the rod body due to the thin thickness of the rod body, thereby reducing the difficulty and risk of the operation.

[0033] In summary, the present application includes at least one of the following beneficial technical effects: The guide head is passed through the bone hole by holding the rod body, so that the guide head and the surgical thread are moved from one side of the fracture site to the other side, the connecting component is disengaged from the guide head and moved back to push the guide head and the surgical thread to pass through the bone hole, so that the guide head is rotated and clamped and installed at the bone hole or on the tissue located at the bone hole for positioning, and the cap head and the surgical thread are pulled at the same time to press the guide head against the bone for positioning, then the cap head is connected to the steel plate, the surgical thread is pulled to reduce the fracture site, and finally the surgical thread is knotted and fixed, thereby improving the convenience of the surgical operation and facilitating the control of the threading depth and position, thereby greatly reducing the difficulty and risk of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the button system; Figure 2 yes Figure 1 The enlarged schematic diagram of the middle A part; Figure 3 yes Figure 1 The enlarged schematic diagram of the middle part B; Figure 4 is a schematic structural diagram of a surgical thread and a cap head in a first embodiment of a button system; Figure 5 It is a cross-sectional schematic diagram of the second embodiment of the button system.

[0035] Figure numerals: 1. rod body; 11. accommodating hole; 12. passing hole; 13. rotating groove; 14. handle; 15. wire clamping groove; 2. guiding mechanism; 21. guiding head; 22. guiding part; 23. annular part; 24. connecting part; 25. guiding hole; 26. guide angle; 3. cap head; 31. frustum part; 32. cylindrical part; 33. accommodating groove; 34. connecting hole; 4. connecting assembly; 41. guide rod; 42. pull ring; 5. positioning member; 51. elastic member; 52. passing chamber; 6. surgical line. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] The embodiment of the present application discloses a self-flipping button system for minimally invasive tibiofibular syndesmosis through a unilateral incision.

[0038] Embodiment 1 Reference Figure 1 The self-flip button system for unilateral incision minimally invasive tibiofibular syndesmosis comprises a rod body 1 and a guiding mechanism 2 arranged on the rod body 1 and used for guiding a surgical thread 6 to pass through a bone hole.

[0039] Reference Figure 1-3A receiving hole 11 is coaxially opened on the rod body 1 and passes through both ends of the rod body 1. A through hole 12 connected with the receiving hole 11 is opened on the outer wall of the rod body 1 along the axis of the rod body 1. The width of the through hole 12 is smaller than the diameter of the receiving hole 11. One end of the rod body 1 is connected with the through hole 12 and is opened with a rotation groove 13. The rotation groove 13 connects the outer wall of the rod body 1 and the receiving hole 11.

[0040] A handle 14 is clamped or threadedly connected to the end of the rod body 1 away from the rotating groove 13. The handle 14 is a regular polyhedron structure. The handle 14 is convenient for holding during surgery to realize the rotation and movement of the rod body 1. A through hole connected to the accommodating hole 11 is opened at the end of the handle 14 away from the rod body 1; a wire clamping groove 15 is opened on the outer side wall of the rod body 1 and at the end of the through hole 12 away from the rotating groove 13. At the same time, a plurality of wire clamping grooves 15 are arranged in a circular array along the axis of the rod body 1 at intervals, and the plurality of wire clamping grooves 15 are staggered with the through hole 12.

[0041] The guiding mechanism 2 includes a guiding head 21 and a cap head 3. The guiding head 21 is detachably arranged on one end of the rod body 1 through a connecting assembly 4. The guiding head 21 is provided with a guiding hole 25 for the surgical thread 6 to pass through and is used to guide the surgical thread 6 to pass through the bone hole, so that after the surgical thread 6 passes through the guiding hole 25, the two free ends pass through the accommodating hole 11 and extend to the outside of the rod body 1.

[0042] The connecting component 4 passes through the accommodating hole 11 and is threadedly connected to the guide head 21, and is used to press the surgical thread 6 against the accommodating hole 11 for positioning; the guide head 21 is initially arranged parallel to the axis of the rod body 1, and the guide head 21 can pass through the bone hole. After the guide head 21 passes through the bone hole, the connecting component 4 is disengaged from the guide head 21 and the guide head 21 is pushed to rotate a certain angle and then clamped at the bone hole for positioning. After the connecting component 4 is removed from the rod body 1, the surgical thread 6 is removed through the passage hole 12.

[0043] The guide head 21 includes a guide portion 22, a circular ring portion 23 and a connecting portion 24 which are interconnected and arranged in sequence along the axis of the rod body 1. The guide portion 22 and the connecting portion 24 are both flat structures, the circular ring portion 23 is circular, and the guide hole 25 is located on the circular ring portion 23; the thickness directions of both the guide portion 22 and the connecting portion 24 are perpendicular to the axial direction of the circular ring portion 23; the connecting portion 24 is composed of two arc-shaped sheets and a threaded section is formed inside, the guide portion 22 and the connecting portion 24 protrude on both sides of the axis of the circular ring portion 23 along the axial direction of the circular ring portion 23, and the circular ring portion 23 protrudes on both sides of the guide portion 22 and the connecting portion 24 along a direction perpendicular to the axial direction of the circular ring portion 23, and an arc-shaped guide angle 26 is provided on the side of the guide portion 22 away from the circular ring portion 23, and the guide angle 26 guides the guide portion 22 when it passes through the bone hole.

[0044] The connecting assembly 4 includes a guide rod 41 and a pull ring 42. The guide rod 41 is coaxially arranged with the rod body 1. After the guide rod 41 passes through the through hole and enters the accommodating hole 11, it is threadedly connected with the threaded section on the connecting portion 24. The connecting portion 24 is rotated into the accommodating hole 11 through the rotating groove 13, and the connecting portion 24 can be rotated to the outside of the rod body 1 through the rotating groove 13; the pull ring 42 is formed into an annular structure by bending the end of the guide rod 41 away from the connecting portion 24, so that the annular portion 23 abuts against one end of the rod body 1 and the pull ring 42 abuts against the end of the handle 14 away from the rod body 1 for positioning; after the surgical thread 6 passes through the guide hole 25, the two free ends of the surgical thread 6 are respectively moved to the two wire clamping grooves 15 through the accommodating hole 11, and then the two free ends of the surgical thread 6 are moved to the outside of the rod body 1 through the two wire clamping grooves 15, and at the same time, when the guide rod 41 passes through the accommodating hole 11, it presses on the surgical thread 6 for positioning.

[0045] The surgical thread 6 is passed through the guide hole 25 and the guide part 22 is rotated into the receiving hole 11 through the rotating groove 13, so that the annular part 23 is against the rod body 1, and the surgical thread 6 is placed into the receiving hole 11 through the through hole 12. At the same time, both ends of the surgical thread 6 are moved to the outside of the rod body 1 through the clamping groove 15, and the free ends of the surgical threads 6 at different angles are moved out through the clamping grooves 15 at different positions. Finally, the guide rod 41 is passed through the through hole and the receiving hole 11 and is threadedly connected with the connecting part 24, so that the annular part 23 is against the rod body 1 and the ring is pulled. 42 is pressed against the handle for positioning, the guide rod 41 is pressed against the surgical line 6 for positioning, and finally the surgical line 6 is pulled to make it tensioned, so that the surgical line 6 can be in the correct position according to the design requirements, and the surgical lines 6 at different angles are at the required angles, which reduces the probability of the surgical line 6 being messy or even entangled, and the line clamping groove 15 is misaligned with the through hole 12, so that the surgical line 6 is misaligned with the through hole 12, which reduces the probability of the surgical line 6 moving out of the through hole 12 and improves the stability of the surgical line 6 during operation.

[0046] Reference Figure 1 , 4 The cap head 3 is used to fix the two free ends of the surgical wire 6 extending to the outside of the rod body 1, and is used to connect with the steel plate used for fracture reduction. The cap head 3 includes a coaxially connected truncated cone portion 31 and a cylindrical portion 32. The outer wall of the truncated cone portion 31 is truncated cone-shaped and the diameter of the end close to the cylindrical portion 32 is smaller than the diameter of the end away from the cylindrical portion 32. A receiving groove 33 is coaxially opened on the truncated cone portion 31. A plurality of connecting holes 34 are opened on the outer wall of the cylindrical portion 32 in a circumferential array around the axis of the cylindrical portion 32, and the plurality of connecting holes 34 are connected to the receiving groove 33. The truncated cone portion 31 is pressed against the steel plate for positioning.

[0047] Reference Figure 2-4The two free ends of the surgical thread 6 pass through the two connecting holes 34 respectively and then pass through the receiving groove 33, and then the surgical thread 6 is pre-knotted and used to prevent the cap head 3 from falling off the surgical thread 6, or, one end of the surgical thread 6 passes through the connecting hole 34 and then passes through the receiving groove 33, and the other end of the surgical thread 6 passes through the two connecting holes 34, the wire clamping groove 15, the receiving hole 11, the guide hole 25 in sequence, and then passes through the receiving hole 11, the wire clamping groove 15, the connecting hole 34 and the receiving groove 33 again before the two free ends are knotted, so the surgical thread 6 is wrapped twice, so two strands of surgical thread 6 can be passed through the same wire clamping groove 15 as needed.

[0048] Reference Figure 1-4 , manually hold the handle 14 to insert the guide part 22 into the bone hole, under the guidance of the guide part 22, the annular part 23, the rod body 1 and the surgical thread 6 pass through the bone hole, the guide head 21 and the surgical thread 6 pass through the bone hole and move from one side of the fracture to the other side, twist the pull ring 42 to disengage the guide rod 41 from the connecting part 24, and then the guide rod 41 moves back to push the connecting part 24 to move to the outside of the rod body 1 through the rotating groove 13, and the annular part 23 abuts on the rod body 1, so that the guide head 21 rotates from a state parallel to the axis of the rod body 1 to form an angle, this angle is greater than 0 degrees and not greater than 90 degrees, and the optimal angle is 90 degrees, so that the guide head 21 is clamped and installed at the bone hole or on the tissue, the guide head 21 abuts on the bone and cannot move back through the bone hole, the cap head 3 is fixedly installed on the steel plate, the surgical thread 6 is knotted and the knot is located in the receiving groove 33, and finally the excess surgical thread 6 is cut off to complete the fracture reduction operation.

[0049] The working principle of the embodiment of the present application is as follows: Pass the surgical thread 6 through the guide hole 25 and make the guide part 22 turn into the accommodating hole 11, so that the annular part 23 abuts against the rod body 1, and then place the surgical thread 6 into the accommodating hole 11 through the through hole 12, move both ends of the surgical thread 6 to the outside of the rod body 1 through the wire clamping groove 15, and then pass the guide rod 41 through the through hole and the accommodating hole 11 and threadedly connect it with the connecting part 24, so that the annular part 23 abuts against the rod body 1 and the pull ring 42 abuts against the handle 14 for positioning, and the guide rod 41 presses on the surgical thread 6 for positioning, and finally pulls the surgical thread 6 to make it in a tensioned state; pass the two free ends of the surgical thread 6 through the connecting hole 34 and the accommodating groove 33 and then move it out, and tie the surgical thread 6 to prevent the cap head 3 from falling off, thereby completing the installation of the button system.

[0050] The handle 14 is manually held to pass the guide head 21 and the surgical thread 6 through the bone hole, and the pull ring 42 is twisted to disengage the guide rod 41 from the connecting portion 24. The guide rod 41 moves back to push the connecting portion 24 to rotate to the outside of the rod body 1, so that the guide head 21 is snap-fitted and installed at the bone hole. The cap head 3 is fixedly installed on the steel plate, the surgical thread 6 is knotted and the knot is located in the receiving groove 33. Finally, the excess surgical thread 6 is cut off to complete the fracture reduction operation. This greatly improves the convenience of operating the surgical thread 6 during the operation, facilitates the control of the threading depth and position, and thus greatly reduces the difficulty and risk of the operation.

[0051] Embodiment 2 Reference Figure 1 , 2 , 5. The difference between this embodiment and embodiment 1 is that a positioning member 5 is also installed on the rod body 1 in a snap-fit ​​manner. The positioning member 5 is a tubular structure and coincides with the axis of the rod body 1. At the same time, the positioning member 5 is elastic and is snap-fitted on the accommodating hole 11 and the passing hole 12, so that the positioning member 5 cannot rotate. During installation, the positioning member 5 is snap-fitted to one end of the rod body 1 where the rotating groove 13 is opened, and the positioning member 5 is pushed to move and the positioning member 5 is completely moved into the accommodating hole 11, thereby completing the installation of the positioning member 5.

[0052] An elastic member 51 with elasticity is integrally provided on the inner wall of the positioning member 5 along the axis of the rod body 1. A plurality of elastic members 51 are arranged in a circular array around the axis of the rod body 1, and a passage chamber 52 is formed between two adjacent elastic members 51 and the positioning member 5. Different passage chambers 52 are used for surgical threads 6 of different angles to pass through. When the guide rod 41 passes through the accommodating hole 11, it passes between the plurality of elastic members 51, and the guide rod 41 squeezes the plurality of elastic members 51 to position itself. At the same time, the guide rod 41 squeezes the elastic member 51 so that the elastic member 51 is pressed against the surgical thread 6 to position the surgical thread 6.

[0053] The positioning member 5 is made of a metal material and the elastic member 51 is made of a non-metallic material. The material of the elastic member 51 is relatively soft, which facilitates the guide rod 41 to pass through multiple elastic members 51, and also reduces the wear caused by the guide rod 41 directly contacting the rod body 1 when it moves, thereby improving the positioning effect of the guide rod 41 and the surgical thread 6; a guide angle is provided at one end of the elastic member 51 close to the handle 14, and the guide angle facilitates guiding the guide rod 41 between multiple elastic members 51.

[0054] The working principle of the embodiment of the present application is as follows: The positioning member 5 is blocked from rotating by engaging with the passage hole 12, and the multiple passage chambers 52 position the surgical thread 6, thereby improving the accuracy of the angle of the surgical thread 6 when it is used. At the same time, the guide rod 41 presses against the elastic member 51 to position itself, and the multiple elastic members 51 press against the surgical thread 6 to position the surgical thread 6, thereby improving the positioning effect of the guide rod 41 and the surgical thread 6, and further reducing the difficulty and risk of the operation.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision, characterized by: The invention comprises a rod body (1) and a guide mechanism (2) arranged on the rod body (1), wherein the rod body (1) is provided with a receiving hole (11) and a passage hole (12) penetrating the rod body (1), and the guide mechanism (2) comprises: The guide head (21) is detachably arranged on one end of the rod body (1) through a connecting component (4) and is provided with a guide hole (25) for the surgical thread (6) to pass through and is used to guide the surgical thread (6) to pass through the bone hole, so that after the surgical thread (6) passes through the guide hole (25), the two free ends pass through the receiving hole (11) and extend to the outside of the rod body (1); the connecting component (4) passes through the receiving hole (11) and is threadedly connected to the guide head (21) and is used to press the surgical thread (6) against the receiving hole (11) for positioning; the guide head (21) is arranged parallel to the axis of the rod body (1) in an initial state; after the guide head (21) passes through the bone hole, the connecting component (4) is separated from the guide head (21) and the guide head (21) is pushed to rotate a certain angle and then clamped at the bone hole for positioning; after the connecting component (4) is removed from the rod body (1), the surgical thread (6) is removed through the passage hole (12); The cap head (3) is used to fix the two free ends of the surgical wire (6) extending to the outside of the rod body (1) and to connect them to the steel plate used for fracture reduction.

2. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 1, characterized in that: The connection component (4) comprises: A guide rod (41) passes through the receiving hole (11) and is threadedly connected to the guide head (21) and pressed against the surgical thread (6) for positioning; The pull ring (42) is arranged on the guide rod (41) so as to drive the guide rod (41) to move and enable the guide head (21) and the pull ring (42) to respectively abut against the two ends of the rod body (1) for positioning.

3. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 2, characterized in that: The accommodating hole (11) and the passage hole (12) are clamped with a positioning piece (5), and the positioning piece (5) is provided with a plurality of elastic pieces (51) in a circular array around the axis of the rod body (1), and the elastic pieces (51) are made of a non-metallic material. Two adjacent elastic pieces (51) and the positioning piece (5) cooperate to form a plurality of passage chambers (52) for the surgical thread (6) to pass through, and the guide rod (41) is pressed against the elastic piece (51) so that the elastic piece (51) is pressed against the surgical thread (6) for positioning.

4. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 1, characterized in that: The guide head (21) comprises a guide portion (22), an annular portion (23) and a connecting portion (24) which are connected in sequence; the width of the guide portion (22) and the connecting portion (24) are both smaller than the outer diameter of the annular portion (23), and the annular portion (23) protrudes outside the guide portion (22) and the connecting portion (24); the guide hole (25) is located on the annular portion (23); and the connecting portion (24) is threadedly connected to the guide rod (41).

5. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 4, characterized in that: A rotation groove (13) for the connecting portion (24) to rotate into the receiving hole (11) is provided on the rod body (1) and located at the guide portion (22). An arc-shaped guide angle (26) for guiding is formed at one end of the guide portion (22) away from the arc portion.

6. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 1, characterized in that: The cap head (3) comprises: The truncated cone portion (31) and the cylindrical portion (32) are coaxially connected; a receiving groove (33) is provided on the truncated cone portion (31); a plurality of connecting holes (34) connected to the receiving groove (33) are provided on the side wall of the cylindrical portion (32); the two free ends of the surgical thread (6) respectively pass through the two connecting holes (34) and then pass through the receiving groove (33) to be knotted, and the knot is located in the receiving groove (33) for storage.

7. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 6, characterized in that: A plurality of wire-holding grooves (15) for the free ends of the surgical wires (6) to pass through are arranged in a circular array around the axis of the rod body (1) on the outer side wall of the rod body (1).

8. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 7, characterized in that: The plurality of wire-holding slots (15) are all arranged in a staggered manner with respect to the passage hole (12).

9. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 7, characterized in that: One end of the surgical thread (6) passes through the connecting hole (34) and the receiving groove (33) in sequence, and the other end of the surgical thread (6) passes through the two connecting holes (34), the thread clamping groove (15), the receiving hole (11), the guide hole (25) in sequence, and then passes through the receiving hole (11), the thread clamping groove (15), the connecting hole (34) and the receiving groove (33) again, and then the two ends are knotted.

10. The self-flipping button system for minimally invasive tibiofibular syndesmosis with unilateral incision according to claim 2, characterized in that: A handle (14) in the form of a regular hexagon is detachably provided at one end of the rod body (1) close to the pull ring (42), and the pull ring (42) is pressed against the handle (14) for positioning.

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