Belt loop fixing system and loading and unloading auxiliary tool

Abstract

The invention relates to a belt loop fixing system which comprises a line body and a fixing part suitable for being used in cooperation with the line body, at least two through holes communicated with the two opposite sides of the fixing part are formed in the fixing part so that the line body can penetrate through the through holes, at least one of the two sides serves as a contact side making contact with the bone, and the through holes are communicated with the line body. The fixing part protrudes towards the direction in contact with the bone at least part of the edge of the contact side so as to form a protruding part. The invention further relates to a loading and unloading auxiliary tool for the belt loop fixing system.

Description

Technical Field

[0001] The invention relates to a medical device implantable in a human body, in particular to a belt loop fixing system, and also to a mounting and dismounting auxiliary tool for the belt loop fixing system. Background Art

[0002] The band-loop fixation system is commonly used in orthopedic reconstruction to achieve the fixation of ligaments or tendons to bones. Generally, a band-loop fixation system includes at least a plate (especially a titanium plate, which has good biocompatibility), a coil (for pulling the ligament or tendon), and one or more sutures (such as traction lines and loop lines), and the plate is correspondingly provided with a number of threading holes.

[0003] Taking a typical anterior cruciate ligament (ACL) reconstruction as an example, a tunnel is formed by drilling holes in the femur and tibia, and the tendon or ligament used for ligament reconstruction is passed through the coil. The plate is then pulled by the traction line on the plate, so that the tendon or ligament is pulled by the coil through the tibial and femoral tunnels until the plate reaches the cortical bone surface that can be flipped. At this time, the plate is suspended on the outside of the femur through the flip loop line; the other end of the tendon or ligament is passed through the tibial tunnel and fixed to the tibial end with other fixation devices (such as tendon ligament fixation screws, U-shaped nails, etc.). In this way, through the fixation of both ends of the femur and tibia, and as the tissue gradually grows in to cover and wrap, it can provide sufficient mechanical fixation and restore the stability of the joint.

[0004] When the fixation system with loops is completed, one side of the plate will face the bone and contact the bone. At this time, it is hoped that the plate can be firmly fixed, that is, it is hoped that the micro-movement of the plate can be reduced, and the plate can be prevented from slipping relative to the bone surface and causing wear to the bone surface as much as possible.

[0005] Chinese patent document CN213283591U discloses a titanium plate with a loop, which has teeth to overcome the defect of the titanium plate in the prior art that displacement causes delayed wound healing. The teeth are arranged on the inner side of the traction line hole and the loop line hole. The teeth are a conical structure. After the titanium plate contacts the bone surface, the teeth are embedded in the bone surface to form a firm fixation.

[0006] Chinese patent document CN216365420U discloses a titanium plate with a loop, which includes a titanium plate body and a fixed plate, wherein the fixed plate is located at the lower end of the titanium plate body, and a plurality of convex teeth are provided at the bottom end of the fixed plate, wherein a fixed plate with convex teeth of corresponding different sizes is provided according to different groups of people (teenagers and young adults).

[0007] Chinese patent document CN107753150A discloses a fixing plate with a loop, which includes a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are connected by a connecting line. The second fixing plate is placed in a groove of the first fixing plate so that the first fixing plate and the second fixing plate are inlaid together for use, which can increase the contact area between the fixing plate and the cortical bone, improve the stability of the fixing plate, and reduce the probability of fixation failure. Summary of the invention

[0008] The present invention aims to provide a strap-loop fixation system with better stability, reduce micro-movement of components and wear on bones, and improve the success rate of related operations.

[0009] A first aspect of the present invention provides a fixation system with a loop, which includes a wire body and a fixing component suitable for use with the wire body, the fixing component is provided with at least two through holes connecting the opposite sides of the fixing component to allow the wire body to pass through, at least one of the opposite sides of the fixing component is used as a contact side for contacting the bone, wherein the fixing component protrudes in the direction of contacting the bone at at least a portion of the edge of the contact side to form a protrusion.

[0010] In human biotribology, both or one of the contacting surfaces is often human soft tissue, bones and other living things. The surface contact between them is very different from the contact between solid material surfaces. In particular, when soft tissue contacts the surface of artificial materials, the soft surface will replicate the morphology of the hard surface to a certain extent. The structure of bones includes the outer periosteum and the inner bone. The bone further includes cancellous bone (also known as trabecular bone) and compact bone (also known as cortical bone). The compact bone is harder, and the periosteum outside the compact bone provides a soft surface.

[0011] According to the fixation system with loops of the present invention, when in use, the fixing component can be controlled so that the side with the raised portion formed on the edge faces the bone and is pressed against the bone to complete fixation. In this way, the fixing component forms limited contact with the bone through the raised portion on the edge with a smaller area. The raised portion exerts a greater pressure on the periosteum, making the periosteum closer to the cortical bone, thereby preventing the fixing component from sliding along the periosteum.

[0012] In the sense of the term according to the invention, an "edge" is to be understood as a narrow boundary region defined by the outer boundary line / contour line of a surface / side.

[0013] In particular, the fixing component of the loop fixing system provided by the present invention is formed with a protrusion only at the edge, thus providing a simple and effective contact structure while minimizing the compression damage to the periosteum and bone. An intact periosteum is an important factor in ensuring the healing of the bone tunnel, and reducing the compression damage to the periosteum is conducive to promoting the healing of the bone tunnel after surgery and reducing the failure rate of surgery.

[0014] Optionally, the fixing component includes a plate body (or the fixing component is a plate body), the plate body is composed of two opposite basically flat surfaces and a peripheral side surrounding and connecting the two flat surfaces, wherein at least two through holes are provided on the plate body to connect the two opposite flat surfaces of the plate body, wherein at least one of the two opposite flat surfaces of the plate body is used as a contact side in contact with the bone, and the surface is configured to bulge in the direction of contact with the bone at at least part of the edge to form a convex portion. Furthermore, the surface of the plate body used as the contact side can also be configured to bulge in the direction of contact with the bone at all edges to form a convex portion.

[0015] Therefore, the side of the plate with the protrusion can be used as the contact side for contacting the bone. When in use, the side of the plate with the protrusion formed at the edge can be controlled to face the bone and abut against the bone, so that the plate forms limited contact with the bone through the protrusion at the edge with a smaller area, and the protrusion exerts a greater pressure on the periosteum, making the periosteum closer to the cortical bone, so that the plate is not easy to slide along the periosteum.

[0016] Here, it is only required to form a protrusion on at least one of the two opposite sides of the plate body, that is, the protrusions can be formed on both opposite sides of the plate body, or only on one side. The advantage of forming protrusions on both sides is that there is no need to deliberately control the front and back directions of the plate body.

[0017] Here, it is only required that the edge of the surface is at least partially formed into a raised portion, that is, the entire edge area of ​​the surface can be formed into a raised portion or partially formed into a raised portion. In particular, for cost saving and easy processing, the size, style and layout of the raised portion can be further adjusted when the purpose of the present invention is achieved.

[0018] For example, the edge of at least one of the two opposite sides of the plate body is raised as a whole in a direction away from the side to form a protrusion. In this way, a mechanical effect similar to "grasping" can be produced on the bone, and a stable fixation can be achieved through a simple and ingenious structure.

[0019] Furthermore, the top of the protrusion is formed as a flat surface, thereby further reducing or avoiding compression damage to the periosteum.

[0020] Furthermore, the surface of the plate body that serves as the contact side has a plurality of conical projections, in particular blunted conical projections, in its inner region relative to the edge. These conical projections help to reduce micro-movements of the belt loop fastening system during fastening.

[0021] Alternatively, the fixing component includes a plate body, which is composed of two opposite substantially flat surfaces and a peripheral side surrounding and connecting the two surfaces, wherein at least two through holes are provided on the plate body to connect the two opposite flat surfaces of the plate body, and the fixing component also includes a sheath body, wherein the sheath body has a sheath wall located on the peripheral side, and the sheath wall defines the contour of the peripheral side surrounding the plate body, wherein the sheath body has a sheath opening at the top facing away from the contact side to allow the plate body to enter, wherein the sheath body has a sheath bottom extending inward at the bottom located on the contact side, and the sheath bottom stops the plate body in a manner that does not cover at least a portion of the plate body including the aforementioned through holes, wherein the bottom surface of the sheath bottom is used as a contact side in contact with the bone, and the surface is configured to bulge in the direction of contact with the bone at at least part of the edge to form a convex portion. Further, the bottom surface of the sheath bottom can also be configured to bulge in the direction of contact with the bone at all edges to form a convex portion.

[0022] Therefore, the bottom surface of the sheath bottom can be used as the contact side for contacting with the bone. When in use, the plate body is installed in the sheath body, and the side of the sheath body with the protrusion, that is, the bottom surface of the sheath bottom, can be controlled to face the bone and be close to the bone, so that the sheath body forms limited contact with the bone through the protrusion at the edge with a smaller area, and the protrusion exerts a greater pressure on the periosteum, so that the periosteum is closer to the cortical bone, so that the sheath body and the plate body contained therein are not easy to slide with the periosteum.

[0023] Since a new sheath is provided, the plate does not need to be modified into a plate with a protrusion, that is, the sheath can be used in combination with a common plate of a known loop fixation system as a fixation component, which is advantageous in terms of production efficiency and commercial value. In addition, the plate is installed in the sheath, thereby improving the overall mechanical strength and reducing the risk of the plate breaking and prolapse into the bone tunnel.

[0024] Furthermore, the top of the protrusion is formed as a flat surface, thereby further reducing or avoiding compression damage to the periosteum.

[0025] Furthermore, the sheath body has a locking element, which can avoid the plate body that is entering the sheath body and can prevent the plate body that has completely entered the sheath body from leaving the sheath body through the sheath opening. Therefore, the plate body can be simply and reliably installed and fixed in the sheath body.

[0026] Furthermore, the sheath wall extends discontinuously around the circumference of the plate body, forming one or more openings toward the sheath opening, or so-called crenels. In this way, when the plate body is to be placed into the sheath body, the sheath body is more easily deformed so that the plate body can enter through the sheath opening. The sheath body preferably has good elasticity, so it is easy to deform and recover immediately.

[0027] Furthermore, the bottom surface of the sheath bottom has a plurality of cones, in particular blunt cones, in its inner region relative to the edge. These cones help to reduce micro-movement of the belt loop fixing system during fixing.

[0028] The second aspect of the present invention further provides a loading and unloading auxiliary tool for a belt-loop fixing system, which is suitable for assembling and / or disassembling the fixing components including a plate body and a sheath body of the belt-loop fixing system according to the first aspect of the present invention, the loading and unloading auxiliary tool comprising: a base member, one end face of which forms a base surface; an actuating member, which is connected to the base member in a relatively movable manner, and the actuating member has an actuating surface that can be pressed toward the base surface as the actuating member moves; wherein the base member has a first bearing groove, and the first bearing groove is open on the base surface and the peripheral side of the base member, wherein the groove bottom of the first bearing groove opposite to the base surface forms a first step surface of the sheath bottom suitable for stopping the sheath body in the direction of the actuating member, and the opening of the first bearing groove on the peripheral side is suitable for taking out and putting in the sheath body, and the depth of the first step surface from the base surface is equivalent to the thickness of the sheath body, wherein the actuating member has a plate placement portion, and the plate placement portion is designed to be suitable for keeping the plate body on the actuating surface and is positioned so as to be The plate body can be pressed into the sheath body accommodated in the first bearing groove as the actuating surface moves toward the base surface, and the plate body is released after the plate body completely enters the sheath body; and / or, wherein the base member has a second bearing groove, the second bearing groove is open on the base surface and the peripheral side of the base member, the groove wall of the second bearing groove has a second step surface that is indented inwardly, the second step surface is designed to be suitable for stopping the sheath wall of the sheath body but allowing the plate body to pass through, and the second bearing groove still has a depth exceeding the thickness of the plate body below the second step surface, wherein the second bearing groove is designed so that when the sheath body stops on the second step surface, at least part of it protrudes out of the peripheral opening of the second bearing groove, wherein the actuating member has a convex rod, the convex rod is arranged on the actuating surface, and is designed to be able to protrude into the second bearing groove from the position of the sheath bottom of the sheath body that does not cover the plate body as the actuating surface moves toward the base surface, a depth exceeding the thickness of the sheath body so as to push the plate body downward from the sheath body.

[0029] Therefore, the plate body-sheath body combined structure can be easily assembled and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of a belt loop fixing system according to one or more embodiments of the present invention; Figure 2a is a schematic diagram of another belt loop fixing system according to one or more embodiments of the present invention; Figure 2b yes Figure 2a A schematic diagram of the belt loop fastening system as viewed from the other side; Figure 2c yes Figure 2a A schematic diagram of the parts of the belt loop fixing system shown; Figure 3It is a schematic diagram of the implementation effect of the belt loop fixing system according to one or more embodiments of the present invention; Figure 4 is a schematic diagram of another belt loop fixing system according to one or more embodiments of the present invention; Figure 5 is a schematic diagram of a mounting and dismounting aid for a belt loop securing system according to one or more embodiments of the present invention.

[0031] Reference numerals list 100 strap fastening system 101 plate body 110 raised part 111 first through hole of plate 112 Second through hole of plate 200 strap fastening system 201 plate body 211 first through hole of plate 212 Second through hole of plate 2 Sheath 20 Raised part 21 Sheath 22 Locking element 23 Sheath Base 231 Cone 24 Sheath bottom long slot through hole 25 Sheath 26 The First Crenel 27 The Second Crenel 300 Assembly and disassembly aids 301 basic parts 310 Basic surface 311 First bearing slot 312 Second bearing slot 302 Actuator 320 Actuation surface 321 Board Placement Department 322 Protruding rod 323 Actuation Head 324 Connection mechanism DETAILED DESCRIPTION

[0032] The present invention is described in detail below using embodiments in combination with the accompanying drawings. It should be noted that the accompanying drawings are only used for illustrative purposes and should not be construed as limiting the present invention.

[0033] The belt-loop fixing system of the present invention comprises a wire body and a fixing component suitable for use with the wire body, such a fixing component is provided with at least two through holes to connect the opposite sides of the fixing component to allow the wire body to pass through, and at least one of the two sides can be used as a contact side for contacting the bone, wherein, according to the present invention, the fixing component protrudes in the direction of contacting the bone at at least a portion of the edge of the contact side to form a protrusion.

[0034] Figure 1 is a schematic diagram of a belt loop securing system 100 according to one or more embodiments of the present invention.

[0035] The belt loop fixing system 100 comprises a wire body (not shown in the figure) and a plate body 101 suitable for use with the wire body, wherein a protrusion 110 is formed on the edge of one of the two opposite sides of the plate body 101 .

[0036] The wire body may be, for example, a coil, a loop wire, a traction wire, etc., and may be made of a polymer material.

[0037] The plate 101 is used as a fixing component of the belt loop fixing system 100 and is used in conjunction with the wire body. The plate 101 can be made of titanium or a titanium alloy, for example. Figure 1 The plate body 101 is constructed as a long strip having a main extension direction (i.e., a length direction); obviously, the plate body 101 may also be a plate of other specific shapes, such as a butterfly shape. Figure 1 In order to cooperate with the wire body, the board body 101 is provided with a first through hole 111 and a second through hole 112 that communicate with two opposite sides of the board body 101. It can be understood that in some embodiments, the board body 101 may be provided with more through holes or holes.

[0038] The protrusion direction of the protrusion 110 is generally in the direction away from the surface of the plate body 101, or in other words, in the thickness direction of the plate body 101. Figure 1 The edge area of ​​one of the two opposite surfaces of the plate body 101 is raised as a whole to form a raised portion 110, which is easy to process and has a better gripping effect; obviously, only a part of the edge can form a raised portion, for example, the raised portion is in the form of a strip extending along the boundary of the surface but with interruptions. In this case, it can also be said that there are multiple raised portions, which can be specifically designed according to the force distribution requirements.

[0039] When in use, the plate 101 can be controlled to have one side with the protrusion 110 close to the bone, that is, the side is used as the contact side for contacting the bone, wherein the narrow protrusion 110 at the edge has a smaller area, exerting a greater pressure on the periosteum, making the periosteum closer to the cortical bone, so that the plate 101 is not easy to slide with the periosteum. Therefore, the fixation stability is increased, and the micro-movement of the plate and the wear on the bone cortex can be reduced. For example, please refer to Figure 3Static test, Figure 3 The middle right side shows the indentation caused by the traditional belt loop fixing system during the simulated implementation, and the left side of the figure shows the indentation caused by the belt loop fixing system of the present invention during the simulated implementation. It can be seen that since the belt loop fixing system of the present invention has a narrow protrusion at the edge of the contact side, the pressure distribution is changed and the pressure effect is concentrated on the edge of the contact side.

[0040] The protrusion 110 may be formed on only one side of the plate 101, and the other side may be very flat. Alternatively, the protrusion 110 may be formed on both opposite sides of the plate 101, and the front and back sides of the plate 101 do not need to be considered when using it.

[0041] Preferably, the top of the protrusion 110 is formed as a flat surface to reduce or avoid damage to the compressed tissue (such as periosteum and bone).

[0042] Preferably, the protrusion height of the protrusion 110 is relatively small. It is understood that the illustrated dimensions do not constitute a limitation to the embodiments.

[0043] See also Figure 1 The junction between the side edge of the plate body 101 and the surface where the protrusion 110 is located can preferably be chamfered or rounded to make the transition smooth and avoid sharp edges.

[0044] Figure 2a , Figure 2b and Figure 2c 1 and 2 are respectively a schematic diagram of one side, a schematic diagram of the other side, and a schematic diagram of parts of another belt loop fixing system 200 according to one or more embodiments of the present invention.

[0045] The belt loop fixing system 200 includes a wire body (not shown in the figure) and a plate body 201 suitable for use with the wire body, and a sheath body 2, wherein the sheath body 2 is suitable for accommodating the plate body 201, and at least one side of the sheath body 2 is open to form a sheath opening 21, and the plate body 201 can enter the sheath body 2 through the sheath opening 21, wherein the edge of the other side of the sheath body 2 opposite to the sheath opening 21 is at least partially formed as a protrusion 20.

[0046] The wire body may be, for example, a coil, a loop wire, a traction wire, etc., and may be made of a polymer material.

[0047] The plate body 201 may be made of titanium or a titanium alloy, for example. Figure 2a to Figure 2c The plate body 201 is constructed as a long strip plate having a main extension direction (i.e., a length direction); obviously, the plate body 201 may also be a plate of other specific shapes, such as a butterfly shape. Figure 2a to Figure 2cIn order to cooperate with the wire body, the plate body 201 is provided with a first plate body through hole 211 and a second plate body through hole 212 that communicate with two opposite sides of the plate body 201. It can be understood that in some embodiments, the plate body 201 may be provided with more through holes or holes.

[0048] The plate body 201 can be combined with the sheath body 2 as a fixed component used in conjunction with the line body. To this end, the sheath body 2 has a sheath wall 25 located on the circumferential side, and the sheath wall 25 defines a contour surrounding the circumferential side of the plate body 201 (that is, the shape is roughly consistent, so that the sheath body 2 is suitable for accommodating the plate body 201), and the top of the sheath body 2 is provided with a sheath opening 21 allowing the plate body 201 to enter, and the bottom of the sheath body 2 has a sheath bottom 23 extending inward, and the sheath bottom 23 is suitable for stopping the plate body 201 and leaving a sheath bottom long groove through hole 24 that does not cover the first through hole 211 of the plate body and the second through hole 212 of the plate body.

[0049] The protrusion direction of the protrusion 20 is generally in the direction away from the bottom surface of the sheath bottom 23, or in other words, in the thickness direction of the plate body 201 or the fixing component. Figure 2a The edge area of ​​the bottom surface of the sheath bottom 23 is raised as a whole to form a raised portion 20, which is easy to process and has a better gripping effect; obviously, only a part of the edge can form a raised portion, for example, the raised portion is in the form of a strip extending along the boundary of the surface but with interruptions. In this case, it can also be said that there are multiple raised portions, which can be specifically designed according to the mechanical distribution requirements.

[0050] When in use, the sheath body 2 can be controlled to have one side with the protrusion 20, i.e., the bottom surface of the sheath bottom 23, close to the bone, that is, the side is used as the contact side for contacting the bone, wherein the narrow protrusion 20 at the edge has a smaller area, exerting a greater pressure on the periosteum, making the periosteum closer to the cortical bone, so that the sheath body 2 and the plate body 201 contained therein are not easy to slide with the periosteum. Therefore, the fixation stability is increased, and micro-motion and wear on the bone cortex can be reduced.

[0051] The plate body 201 can be a titanium plate in a common titanium plate system with loops, and a suitable sheath body 2 can be provided for use with the plate body 201. The sheath body 2 contains the plate body 201, and compared with the plate body 201 alone, it can have a higher overall mechanical strength.

[0052] In some embodiments, the top of the protrusion 20 is formed as a flat surface to reduce or avoid damage to the compressed tissue (eg, periosteum and bone).

[0053] Preferably, the protrusion height of the protrusion 20 is relatively small. It is understood that the illustrated dimensions do not constitute a limitation to the embodiments.

[0054] See also Figure 2b and Figure 2cIn some embodiments, the sheath 2 has a locking element 22, and the locking element 22 can prevent the plate 201 from leaving the sheath 2 through the sheath opening 21. In some embodiments, the locking element 22 can also avoid the plate 201 that is entering the sheath 2. Exemplarily, the locking element 22 can be an inwardly extending elastic buckle located at the sheath opening 21, and can protrude inward in a "V" shape. The locking element 22 preferably has good elasticity, so that the plate 201 can be easily installed into the sheath 2 and can be firmly held. Exemplarily, in Figure 2b In the embodiment, four locking elements in the form of elastic buckles are constructed at the sheath opening 21 of the sheath body 2.

[0055] The sheath bottom 23 of the sheath body 2 is provided with a sheath bottom long slot through hole 24, which is configured so that the sheath bottom 23 will not block at least part of the plate body including the first plate body through hole 211 and the second plate body through hole 212. Therefore, wires such as coils, traction wires and loop wires can be conveniently passed through and used in conjunction with the plate body 201 and the sheath body 2. In particular, the unblocked part of the plate body may be convenient for using tools to push the plate body out of the sheath body during disassembly, for example, see Figure 5 .

[0056] The side of the sheath body 2 has a sheath wall 25, and the sheath wall 25 blocks the plate body 201 from the side. In some embodiments, the sheath wall 25 extends discontinuously around the plate body 201 along the circumference of the plate body 201, thereby forming one or more openings toward the sheath opening, or called crenels, such as a first crenel 26 and a second crenel 27. In particular, to form this structure, a complete sheath wall can be formed first, and then an incision or notch is made at a specific position, that is, a crenel is formed. Such a structure makes the sheath body 2 more prone to deformation, so that the plate body 201 can be more easily installed into the sheath body 2 through the sheath opening 21. It is understood that the ratio of the depth of the crenel to the height of the sheath wall can be any suitable value, such as 100%, 75%, 50%, 25%, etc., and the width of the crenel can also be any suitable value. It is understood that the number and distribution of the crenels can be arranged arbitrarily, and exemplary, they can be arranged symmetrically, especially rotationally symmetrically and mirror-symmetrically.

[0057] In some embodiments, the plate body 201 is provided with a plate body side hole 213 opened from the side. Accordingly, the sheath body 2 may have a crenel, such as a second crenel 27 corresponding to the plate body side hole 213 , so that the plate body side hole 213 will not be blocked by the sheath wall 25 .

[0058] Similar to the plate 201, the sheath 2 can also be made of titanium or a titanium alloy. In particular, it is advantageous that the sheath 2 has good elasticity, so that the plate 201 can be more easily installed in the sheath 2. In particular, it is advantageous that the sheath 2 has a very thin thickness and is in the shape of a thin shell, so that the sheath 2 is more elastic. The sheath 2 can also be made of polyetheretherketone (PEEK), and the good elasticity of polyetheretherketone helps to install the plate into the sheath 2.

[0059] Exemplarily, the plate body 201 may be installed into the sheath body 2 through the sheath opening 21 along the thickness direction of the plate body 201 .

[0060] Figure 4 Schematic diagram of another belt loop fixing system according to one or more embodiments of the present invention, in particular, it can be Figure 2a The embodiment is further constructed based on the embodiment shown, but the difference is that the bottom surface of the sheath bottom 23 has a plurality of cones 231 in its inner area relative to the edge.

[0061] In addition to the raised portion, the contact side also has a concave portion, that is, an inner area relative to the edge, where multiple (especially two symmetrical) blunt cones (or cone spikes) are constructed to further reduce the probability of micro-movement of the belt loop fixing system.

[0062] It is also conceivable that, for example, Figure 1 In this case, a surface of the plate body serving as the contact side is structured to form a plurality of cones (not shown) in an inner region relative to the edge.

[0063] Figure 5 is a schematic diagram of a mounting and dismounting aid 300 for a belt loop securing system according to one or more embodiments of the present invention.

[0064] The loading and unloading auxiliary tool 300 is particularly suitable for assembling and / or disassembling the fixing parts including the plate body 201 and the sheath body 2 of the belt loop fixing system 200 according to the embodiment of the present invention. Preferably, the sheath bottom of the sheath body has an opening, and the sheath body has a locking element that prevents the plate body from leaving the sheath body through the sheath opening, the opening of the sheath bottom can be, for example, the sheath bottom long groove through hole 24 described above, and the locking element can be, for example, the locking element 22 described above.

[0065] like Figure 5 The illustrated assembly and disassembly assisting tool 300 includes a base member 301 and an actuating member 302 .

[0066] One end face of the base member 301 forms a base surface 310, wherein a first bearing groove 311 and a second bearing groove 312 are provided on the base surface 310, and the first bearing groove 311 and the second bearing groove 312 are configured to be suitable for bearing the sheath body 2 of the belt loop fixing system at the position of the base surface 310, wherein the first bearing groove 311 and the second bearing groove 312 are also opened on the peripheral side of the base member so that the sheath body 2 can be placed in and removed.

[0067] The bottom of the first bearing groove 311 opposite to the base surface 310 forms a first step surface of the sheath bottom suitable for stopping the sheath body in the direction of the actuator 302. The opening of the first bearing groove 311 on the peripheral side is suitable for taking out and putting in the sheath body 2. The depth of the first step surface in the first bearing groove 311 from the base surface is equivalent to the thickness of the sheath body 2, so that the plate body 201 can be completely pressed into the sheath body 2 as the actuator moves.

[0068] The second bearing groove 312 is configured such that the groove wall has a second step surface that is indented inward after a proper distance from the groove opening. The second step surface is designed to be suitable for stopping the sheath wall of the sheath body but can allow the plate body to pass through. The second bearing groove 312 still has a depth that exceeds the thickness of the plate body below the second step surface to provide space so that the plate body 201 can be completely pressed out of the sheath body that has been stopped by the second step surface. In addition, the size of the second bearing groove 312 can be designed so that when the sheath body 2 stops on the second step surface, at least a part of it protrudes outside the peripheral opening of the second bearing groove 312, so that it is convenient to remove the sheath body 2 from the peripheral side.

[0069] For example, Figure 5 As shown, the first bearing slot 311 and the second bearing slot 312 extend from the base surface 310 on the side of the base member 301 and penetrate through, so from the cross section, the first bearing slot 311 and the second bearing slot 312 are only closed on three sides, and optionally, from the cross section, the long sides of the first bearing slot 311 and the second bearing slot 312 are not consistent, and can be perpendicular to each other. This mutually perpendicular layout relationship does not affect the first bearing slot 311 and the second bearing slot 312 to respectively realize their functions of installing the plate body 201 into the sheath body 2 and removing the plate body 201 from the sheath body 2, but the different orientations are conducive to the operator to identify the two bearing slots, so as to quickly and accurately find the bearing slot that needs to be filled.

[0070] The actuating member 302 cooperates with the base member 301 in a relatively movable manner, and the actuating member 302 has an actuating surface 320 corresponding to the base surface 310, wherein when the actuating member 302 is actuated, the actuating surface 320 is pressed against the base surface 310, wherein a plate placement portion 321 is provided at a position corresponding to the first bearing groove 311 on the actuating surface 302, and the plate placement portion 321 is designed to be suitable for holding the plate body 201 on the actuating surface 320, and is positioned so that the plate body 201 can be pressed into the sheath body 2 accommodated in the first bearing groove 311 as the actuating surface 320 moves toward the base surface 310, and the plate body 201 is released after the plate body 201 completely enters the sheath body 2. A convex rod 322 is provided at a position corresponding to the second bearing groove 312 on the actuating surface 320. The convex rod 322 is arranged on the actuating surface 320 and is designed to protrude from the sheath bottom long groove through hole 24 of the sheath body 2 arranged in the second bearing groove 312 into the second bearing groove 312 to a depth exceeding the sheath body thickness as the actuating surface 320 moves toward the base surface 310 .

[0071] For example, the actuator 302 may include an actuator head 323 and a connecting mechanism 324, the actuator surface 320 may be constructed on the actuator head 323, the connecting mechanism 324 connects the actuator head 323 to the base member 301 and enables relatively movable cooperation, especially telescopic movement. In particular, the connecting mechanism 324 includes an elastic component, so the connecting mechanism 324 is an elastic connecting mechanism, the actuator head 323 is elastically lifted in a natural state, so the actuator surface 320 is separated from the base surface 310 in a natural state, and after the actuator head 323 is pressed, the elastic component works again to lift the actuator head 323.

[0072] In particular, when the belt loop fixing system 200 is actually used, the fixing components (sheath 2 and plate 201) will be used in conjunction with one or more wires, so the plate 201 can also be held on the actuating surface 320 by means of the wires. Figure 5 As shown, a channel is constructed on the rear of the plate seating portion 321 relative to the actuating surface 320, and a wire body (not shown) passing through the plate body 201 passes through the channel and protrudes out of the actuating head 323, and is then temporarily fixed by the user's fingers that are originally intended to press the actuating head 323 by threading, binding or pressing down. Therefore, the position of the plate body 201 can be suspended on the actuating surface 320 by the force of the user's fingers and remains basically unchanged.

[0073] In particular, when using the assembly and disassembly auxiliary tool 300, it is preferred to naturally hold the base member 301, the base surface 310 is the upper end surface of the base member 301, and when the sheath body 2 is placed in the first bearing groove 311, the sheath mouth is preferably facing upward, and when placed in the second bearing groove, the sheath mouth is preferably facing downward.

[0074] Exemplarily, by actuating the actuator 302, in particular by pressing the actuator 302 with a finger, for example Figure 5 In the middle, press downward to assemble the plate body 201 placed on the plate placement portion 321 and the sheath body 2 carried in the first bearing groove 311, wherein the sheath mouth of the sheath body 2 faces the plate body 201. In particular, a "click" sound is heard, indicating that the installation is completed, and the locking element 22 of the sheath body 2 can play a role here.

[0075] Exemplarily, by actuating the actuator 302, in particular by pressing the actuator 302 with a finger, for example Figure 5 In the middle, the plate body 201 and the sheath body 2 that have been assembled and carried in the second bearing groove 312 are disassembled by the protruding rod 322. When the belt loop fixing system 200 to be disassembled is placed in the second bearing groove with the sheath bottom facing upward, the sheath wall 25 is stopped on the second step surface, and the protruding rod 322 can pass through the sheath bottom long groove through hole 24 of the sheath body 2 to push the plate body downward out of the sheath body 2, so that it falls below the second step surface. Then, since the second bearing groove 312 does not contain all the sheath body or the plate body in terms of cross-sectional area, the sheath body 2 at least partially protrudes out of the peripheral opening of the second bearing groove 312 when it stops on the second step surface, so that the sheath body 2 and the plate body 201 that have been separated from each other can be easily taken out from the peripheral opening of the base member 301.

[0076] The above describes some embodiments of the present invention, but the spirit and scope of the present invention are not limited to the specific contents disclosed herein. Those skilled in the art can make more embodiments and applications based on the teachings of the present invention, and these embodiments and applications are all within the spirit and scope of the present invention. The spirit and scope of the present invention are not limited by the specific embodiments, but by the claims.

Claims

1. A belt-loop fixation system, comprising a wire and a fixing component suitable for use with the wire, the fixing component is provided with at least two through holes connecting opposite sides of the fixing component to allow the wire to pass through, at least one of the opposite sides of the fixing component is used as a contact side contacting a bone, characterized in that: The fixing component protrudes at least part of the edge of the contact side toward the direction of contact with the bone to form a protrusion.

2. The belt loop fixing system according to claim 1, characterized in that: The fixing component includes a plate body, which is composed of two opposite flat surfaces and a peripheral side surrounding and connecting the two flat surfaces, wherein at least two through holes connecting the two opposite flat surfaces of the plate body are opened on the plate body, wherein at least one of the two opposite flat surfaces of the plate body is used as the contact side contacting the bone, and the flat surface is configured to protrude in the direction of contacting the bone at at least part of the edge to form the protrusion.

3. The belt loop fixing system according to claim 2, characterized in that: The surface of the plate body serving as the contact side is configured to be convex at all edges in a direction of contact with the bone to form the convex portion.

4. The belt loop fixing system according to claim 2 or 3, characterized in that: The top of the protrusion is formed as a flat surface.

5. The belt loop fixing system according to claim 1, characterized in that: The fixing component comprises a plate body, the plate body comprises two opposite flat surfaces and a peripheral side surrounding and connecting the two flat surfaces, wherein at least two through holes communicating with the two opposite flat surfaces of the plate body are provided on the plate body, The fixing component further comprises a sheath body, wherein the sheath body has a sheath wall located on the peripheral side, the sheath wall defines a contour surrounding the peripheral side of the plate body, wherein the sheath body has a sheath opening at the top facing away from the contact side for allowing the plate body to enter, wherein the sheath body has a sheath bottom extending inwardly at the bottom located on the contact side, and the sheath bottom stops the plate body in a manner that does not cover at least a portion of the plate body including the through hole, The bottom surface of the sheath bottom is configured to bulge toward the direction of contact with the bone at at least a portion of the edge to form the bulge.

6. The belt loop fixing system according to claim 5, characterized in that: The bottom surface of the sheath bottom is configured to bulge toward the direction of contact with the bone at all edges to form the bulge.

7. The belt loop fixing system according to claim 5, characterized in that: The top of the protrusion is formed as a flat surface.

8. The belt loop fixing system according to claim 5, characterized in that: The sheath body has a locking element, which can avoid the plate body that is entering the sheath body and can prevent the plate body that has completely entered the sheath body from leaving the sheath body through the sheath opening.

9. The belt loop fixing system according to claim 5, characterized in that: The sheath wall extends discontinuously around the circumference of the plate body to form one or more crenels.

10. The belt loop fixing system according to claim 5, characterized in that: The sheath is made of polyetheretherketone material.

11. A mounting and dismounting auxiliary tool for a belt loop fixing system, which is suitable for assembling and / or disassembling the fixing component comprising a plate body and a sheath body of the belt loop fixing system according to any one of claims 5 to 10, comprising: A base member, one end surface of which forms a base surface; an actuating member connected to the base member in a relatively movable manner, the actuating member having an actuating surface capable of being pressed toward the base surface as the actuating member moves; The base member has a first bearing groove, which is open at the base surface and the peripheral side of the base member, wherein the groove bottom of the first bearing groove opposite to the base surface forms a first step surface suitable for stopping the sheath bottom of the sheath body in the direction of the actuator, and the opening of the first bearing groove on the peripheral side is suitable for taking out and putting in the sheath body, and the depth of the first step surface from the base surface is equivalent to the thickness of the sheath body, wherein the actuator has a plate placement portion, the plate placement portion is designed to be suitable for retaining the plate body on the actuating surface, and is positioned so that the plate body can be pressed into the sheath body accommodated in the first bearing groove as the actuating surface moves toward the base surface, and the plate body is released after the plate body completely enters the sheath body; and / or The base member has a second bearing groove, the second bearing groove is open on the base surface and the peripheral side of the base member, the groove wall of the second bearing groove has a second step surface indented inwardly, the second step surface is designed to be suitable for stopping the sheath wall of the sheath body but allowing the plate body to pass through, and the second bearing groove still has a depth exceeding the thickness of the plate body below the second step surface, wherein the second bearing groove is designed so that when the sheath body stops on the second step surface, at least part of it protrudes out of the peripheral side opening of the second bearing groove, In which, the actuator has a protruding rod, which is arranged on the actuating surface and is designed to be able to protrude from the position of the sheath bottom of the sheath body arranged in the second bearing groove that does not cover the plate body into the second bearing groove to a depth exceeding the thickness of the sheath body as the actuating surface moves toward the base surface, so as to push the plate body downward from the sheath body.

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