Implant device and implant system

Abstract

The present application relates to a kind of implant device and implant system, handle, slider and rod body, wherein: handle has first end and second end extending in axial direction, handle is provided with movable cavity;Slider is arranged in the second end close to handle, and is slidably arranged in movable cavity in axial direction;Rod body has proximal end connected with slider and distal end away from handle, and push slider releases implant member located at the distal end of rod body.Only need to open a cut on the skin during implantation, so as to reduce the risk of surgical infection, reduce surgical steps, shorten the operation time of doctor;And, user can release implant member by controlling slider to drive rod body to slide outside the body, so as to not need to open cut matching with the position of hanging end bone tunnel on the skin, reduce the positioning difficulty of implant member hanging at bone tunnel, so as to reduce the difficulty of surgical positioning.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an implantation device and implantation system. Background Technology

[0002] Cruciate ligament insufficiency is a common joint disease in medicine, with common causes including progressive, pathological ligament deterioration and trauma. Treatment typically involves extra-articular stabilization techniques, which temporarily inhibit abnormal knee joint movement until sufficient joint adaptation occurs, thereby providing functional stability and improving limb function.

[0003] In existing technologies, extra-articular stabilization techniques typically involve using a guide needle to guide the first implant through the femoral and tibial medullary tracts, so that the first implant is attached to the exit of the tibial medullary tract and the second implant is attached to the entrance of the femoral medullary tract. The sutures are then tightened and a surgical knot is tied for fixation.

[0004] However, current technology makes it difficult to guide the needle through the bone tunnel during implantation. To ensure the needle exits through the skin after passing through the bone marrow tract, at least three incisions are typically required. Multiple incisions lead to a longer recovery period and a higher risk of postoperative infection.

[0005] Furthermore, in existing technologies, it is difficult to position the implant at the bone tunnel because an incision needs to be made on the skin to match the position of the bone tunnel. Therefore, the accuracy of surgical positioning is also required. Summary of the Invention

[0006] Therefore, it is necessary to provide an implantation device and implantation system to address the above problems. This implantation device only requires one incision in the skin, thereby reducing the risk of surgical infection, reducing surgical steps, shortening the surgeon's operation time, and also reducing the difficulty of positioning the implant at the bone tunnel, thus reducing the difficulty of surgical positioning.

[0007] The present invention first provides an implantation device, comprising: a handle having a first end and a second end extending axially, the handle having a movable cavity; a slider disposed near the second end of the handle and slidably disposed axially within the movable cavity; and a rod having a proximal end connected to the slider and a distal end away from the handle, for pushing the slider to release the implant located at the distal end of the rod.

[0008] In the aforementioned implantation device, the distal end of the rod is inserted into the skin through a surgical incision, and the rod guides the implant through the bone marrow tract. Once the implant exits the bone marrow tract, a slider causes the rod to slide relative to the handle, releasing the implant at the distal end of the rod. The implant detaches from the device and remains at the exit of the bone marrow tract. Finally, the rod is retracted along its original path. This method requires only one incision in the skin, reducing the risk of surgical infection, minimizing surgical steps, and shortening the surgeon's time. Furthermore, the user can control the slider externally to release the implant, eliminating the need for an incision matching the bone tunnel position on the skin, thus reducing the difficulty of positioning the implant at the bone tunnel and simplifying surgical positioning.

[0009] In one embodiment, the implantation device further includes a first elastic element and a push button. The first elastic element is disposed in the movable cavity and is capable of applying an elastic force to the sliding element. The handle is provided with a groove, one end of the push button is connected to the sliding element, and the other end extends out of the handle through the groove.

[0010] With this design, the first elastic element eliminates the need for the user to manually reset the slider and rod. Furthermore, the user can control the slider to slide within the active cavity via the push button on the outside of the handle, further enhancing the ease of operation.

[0011] In one embodiment, the rod includes a first rod and a second rod that are axially slidable relative to each other, one of the first rod and the second rod being connected to the slider and the other being connected to the second end of the handle.

[0012] With this configuration, the user can slide the first or second rod connected to it relative to the other through the slider, so that the implant can be disengaged from the distal end of the rod by the relative sliding action between the first and second rods, making the operation simple and convenient.

[0013] In one embodiment, the first rod is connected to the handle, and the second rod is connected to the slider.

[0014] With this configuration, the user can slide the second rod relative to the first rod using a slider, and the implant will detach from the second rod under the action of being attached to the bone marrow opening.

[0015] In one embodiment, the first rod body includes: a first stationary rod disposed at the second end of the handle; and a second stationary rod detachably connected to the distal end of the first stationary rod; the second rod body includes: a first sliding rod connected to the sliding member and slidably disposed on the first stationary rod; and a second sliding rod slidably disposed on the second stationary rod.

[0016] This setup allows for the implantation of two or more implants in a single assembly, further reducing the surgeon's operation time.

[0017] In one embodiment, the distal end of the second sliding rod is provided with a first mounting portion for assembling the implant; the distal end of the first sliding rod is provided with a second mounting portion for assembling the implant; the first mounting portion and / or the second mounting portion are configured as protrusions that can be inserted into the insertion hole of the implant.

[0018] With this configuration, the first assembly part and the second assembly part can clearly define the assembly positions of the first implant and the second implant, making it convenient for users to assemble the implant; the cooperation between the protrusion and the insertion hole can ensure the stability and reliability of the connection between the implant and the first assembly part and the second assembly part, and also ensure that the implant can be easily separated from the first assembly part and the second assembly part.

[0019] In one embodiment, it further includes: a second elastic member, one end of which is connected to the distal end of the second sliding rod, and the other end of which is capable of abutting against the implant, so that the second elastic member is in a compressed state and is capable of applying an elastic force toward the implant.

[0020] With this configuration, the second elastic element can apply an elastic force to the implant, assisting the implant in detaching from the first assembly part.

[0021] In one embodiment, the proximal end of the second stationary rod is provided with a clearance groove for receiving the implant.

[0022] With this design, the clearance groove can prevent the second implant from protruding from the implantation device and affecting the surgery. At the same time, the clearance groove can also prevent the second implant from accidentally detaching from the second assembly.

[0023] In one embodiment, the distal end of the second stationary rod is provided with a support portion capable of abutting against the sidewall of the implant.

[0024] With this configuration, the support can prevent the first implant from rotating relative to the second sliding rod during implantation, thereby improving the stability of the first implant during the implantation process.

[0025] In one embodiment, it further includes a bushing for detachably securing the second stationary rod to the distal end of the first stationary rod.

[0026] This design makes it easy for users to install or remove the second stationary bar, saving surgical time.

[0027] In one embodiment, the first rod is connected to the slider, and the second rod is connected to the handle.

[0028] With this configuration, the user can slide the first rod relative to the second rod using the slider, and the implant will detach from the first rod under the pushing action of the second rod.

[0029] In one embodiment, the first rod is provided with a receiving groove for accommodating the implant.

[0030] This design prevents the implant from protruding from the implantation device and affecting the surgery. At the same time, the receiving groove also prevents the second implant from accidentally detaching from the first rod.

[0031] In one embodiment, the first rod body is further provided with a wiring groove extending axially.

[0032] This design allows the suture groove to conceal the sutures, ensuring they are neat and preventing them from interfering with the surgery.

[0033] The present invention also provides an implantation system, comprising: an implantation assembly including at least two implants connected to each other by sutures; and the above-described implantation device, wherein the implants are connected to the distal end of the rod. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a three-dimensional structural diagram of an implantation device according to one embodiment of the present invention;

[0036] Figure 2 Provided by the present invention Figure 1 A schematic diagram of the cross-sectional structure;

[0037] Figure 3 Provided by the present invention Figure 2 Enlarged structural diagram at point A;

[0038] Figure 4 Provided by the present invention Figure 2 Enlarged structural diagram at point B;

[0039] Figure 5 Provided by the present invention Figure 2 A three-dimensional structural diagram of the sliding component;

[0040] Figure 6 Provided by the present invention Figure 1A three-dimensional structural diagram of the first stationary rod in the middle;

[0041] Figure 7 Provided by the present invention Figure 1 A three-dimensional structural diagram of the second stationary rod;

[0042] Figure 8 Provided by the present invention Figure 1 A three-dimensional structural diagram of the central bushing;

[0043] Figure 9 A three-dimensional structural schematic diagram of the implant provided by the present invention;

[0044] Figure 10 The implantation component provided by the present invention and Figure 1 An assembly diagram of the implanted components;

[0045] Figure 11 Provided by the present invention Figure 10 A schematic diagram of the cross-sectional structure;

[0046] Figure 12 Provided by the present invention Figure 1 A schematic diagram of the exploded structure;

[0047] Figure 13 This is a three-dimensional structural diagram of an implantation device according to another embodiment of the present invention;

[0048] Figure 14 Provided by the present invention Figure 13 A schematic diagram of the cross-sectional structure;

[0049] Figure 15 Provided by the present invention Figure 14 Enlarged structural diagram at point C;

[0050] Figure 16 Provided by the present invention Figure 13 A three-dimensional structural diagram of the third sleeve in the middle;

[0051] Figure 17 The implantation component provided by the present invention and Figure 13 An assembly diagram of the implanted components;

[0052] Figure 18 Provided by the present invention Figure 13 A schematic diagram of the exploded structure;

[0053] Figure 19 This is a schematic diagram of the structure of the implantable component provided by the present invention;

[0054] Figure 20 The implantation process of the implantation device of the implantation system provided by the present invention Figure 1 ;

[0055] Figure 21 The implantation process of the implantation device of the implantation system provided by the present invention Figure 2 ;

[0056] Figure 22 The implantation process of the implantation device of the implantation system provided by the present invention Figure 3 .

[0057] Reference numerals: 1. First rod body; 11. First stationary rod; 111. Limiting groove; 12. Second stationary rod; 121. Clearance groove; 122. Clearance opening; 123. Support part; 13. Receiving groove; 14. Wiring groove; 2. Second rod body; 21. First sliding rod; 211. Second assembly part; 22. Second sliding rod; 221. First assembly part; 3. Second elastic element; 4. Handle; 41. Movable cavity; 42. Slide groove; 43. Handle body; 44. Cover; 45. Annular groove; 5. Sliding element; 51. Sliding part; 511. Assembly hole; 52. First limiting part; 53. Second limiting part; 6. First elastic element; 7. Push button; 8. Implant assembly; 81. Implant; 811. Insertion hole; 812. Through hole; 813. First implant; 814. Second implant; 82. Suture; 9. Bushing; 91. Annular part; 92. Protrusion; A. Femoral medullary canal; B. Tibial medullary canal. Detailed Implementation

[0058] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0059] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0063] In existing techniques, extra-articular stabilization typically involves using a guide pin to guide the first implant through the femoral and tibial medullary tunnels, with the first implant positioned at the exit of the tibial medullary tunnel and the second implant positioned at the entrance of the femoral medullary tunnel. The sutures are then tightened and secured with a surgical knot. However, existing techniques often struggle to guide the guide pin through the bone tunnels during implantation. To ensure the guide pin exits through the skin after passing through the medullary tunnels, at least three incisions are generally required. Multiple incisions lead to longer recovery periods and a higher risk of postoperative infection. Furthermore, existing techniques require incisions on the skin that match the position of the bone tunnel at the attachment point, making precise positioning of the implant at the bone tunnel location challenging and demanding high surgical accuracy.

[0064] To solve the above problems, such as Figures 1 to 22 As shown, the present invention first provides an implantation device that only requires an incision in the skin, thereby reducing the risk of surgical infection, reducing surgical steps, shortening the surgeon's operation time, and also reducing the difficulty of positioning the implant at the bone tunnel, thereby reducing the difficulty of surgical positioning.

[0065] like Figures 1 to 3As shown, specifically, the implantation device includes a handle 4, a slider 5, and a rod, wherein: the handle 4 has a first end and a second end extending axially, and the first end of the handle 4 faces towards... Figure 1 and Figure 13 The end shown extends in the X-axis direction, and the second end of the handle 4 faces towards... Figure 1 and Figure 13 The handle 4, extending along the +X axis, has a movable cavity 41 at one end. A slider 5 is located at the second end near the handle 4 and is slidably disposed within the movable cavity 41 along the axial direction. The rod has a proximal end connected to the slider 5 and a distal end away from the handle 4; the proximal end of the rod faces towards... Figure 1 and Figure 13 The end of the rod extending along the X-axis is shown, with the far end of the rod facing towards... Figure 1 and Figure 13 The end extending in the +X axis direction, as shown, pushes the slider 5 to release the implant 81 located at the far end of the rod.

[0066] As mentioned earlier, in the prior art, at least three incisions are generally required on the skin to allow the guide needle to exit through the bone marrow tract. Multiple incisions lead to a longer recovery period and a higher risk of postoperative infection. Furthermore, because incisions matching the position of the bone tunnel at the attachment end need to be made on the skin, positioning the implant at the bone tunnel is difficult, thus requiring high precision in surgical positioning. However, in the implantation device provided by this invention, during the procedure, the implant 81 is first assembled to the distal end of the rod. Then, the distal end of the rod is inserted into the skin through the surgical incision, and the rod guides the implant 81 through the bone marrow tract. After the implant 81 exits the bone marrow tract, the slider 5 causes the rod to slide relative to the handle 4, allowing the implantation device to release the implant 81 located at the distal end of the rod. The implant 81 detaches from the implantation device and remains at the exit of the bone marrow tract. Finally, the rod is retracted along its original path. This only requires one incision in the skin, which reduces the risk of surgical infection, reduces surgical steps, and shortens the doctor's operation time. Furthermore, the user can hold the handle 4 and control the slider 5 from outside the body to slide the rod to release the implant 81. This eliminates the need to make an incision in the skin to match the position of the bone tunnel at the attachment end, reducing the difficulty of positioning the implant 81 at the bone tunnel, thereby reducing the difficulty of surgical positioning and making it easier for the user to operate.

[0067] like Figure 2 and Figure 4 As shown, the handle 4 includes a handle body 43, and a movable cavity 41 is provided inside the handle body 43. The inner diameter of the movable cavity 41 is equal to or slightly larger than the maximum outer diameter of the slider 5, so as to ensure that the slider 5 can slide easily in the movable cavity 41 while restricting the sliding direction of the slider 5 and the second rod 2.

[0068] like Figure 1and Figure 19 As shown, since the implant 81 is usually wrapped with a suture 82, in order to avoid the suture 82 being too long and affecting the user's operation, the outer peripheral wall of the handle body 43 is provided with an annular groove 45 for wrapping the suture 82, which also makes it easier for the user to tighten the suture 82. The outer surface of the handle body 43 can be provided with a wavy texture, multiple protrusions or other structures to increase friction, thereby increasing the user's grip and ensuring the stability and reliability of the user when holding the handle 4.

[0069] like Figure 2 and Figure 4 As shown, the handle 4 has a groove 42 connecting the movable cavity 41 to the outside. The implantation device also includes a push button 7, one end of which is connected to the slider 5, and the other end extends out of the handle 4 via the groove 42. The user can control the push button 7 from the outside of the handle 4 to move the slider 5 within the movable cavity 41, further improving the convenience of user operation. The groove 42 preferably extends along the axial direction of the handle 4, and the width of the groove 42 is equal to or slightly larger than the outer diameter of the push button 7, so as to ensure that the push button 7 can slide easily within the groove 42 while restricting the sliding direction of the groove 42.

[0070] like Figures 4 to 5 As shown, the slider 5 is connected to the push button 7, which can be achieved through screw connection, or by welding, gluing, snap-fitting, or plugging. Specifically, pushing the push button 7 causes the slider 5 to move forward, advancing the second rod 2; this invention does not impose specific limitations. In the illustrated embodiment, the slider 5 has a mounting hole 511 for mounting the push button 7. The push button 7 is engaged within the mounting hole 511 to ensure the stability and reliability of the connection between the push button 7 and the slider 5.

[0071] like Figure 2 and Figure 4 As shown, the implantation device also includes a first elastic element 6 disposed between the slider 5 and the inner wall of the movable cavity 41. The first elastic element 6 can apply an elastic force to the slider 5. When the user controls the push button 7, the slider 5 and the rod to slide, the first elastic element 6 is compressed. When the user releases the push button 7, the slider 5 will slide back to its original position under the action of the elastic force of the first elastic element 6. This eliminates the need for manual reset of the slider 5 and the rod, further improving the convenience of user operation.

[0072] like Figure 5As shown, the sliding member 5 includes a sliding portion 51 and a first limiting portion 52 and a second limiting portion 53 protruding from both ends of the sliding portion 51 along the sliding direction of the sliding member 5. The first limiting portion 52 and the second limiting portion 53 can be used to limit the first elastic member 6. Of course, the sliding member 5 may also be provided with only the first limiting portion 52 or only the second limiting portion 53 as needed. In the illustrated embodiment, the first limiting portion 52 and the second limiting portion 53 can be configured as a cylindrical structure with a diameter smaller than that of the sliding portion 51, or a structure that tapers from the sliding portion 51 to the end away from the sliding portion 51. The first elastic member 6 is configured as a spring, which can be sleeved outside the first limiting portion 52 and the second limiting portion 53, so that one end of the spring is limited in the sliding member 5 while limiting the deformation direction of the spring, and the other end of the spring abuts against the inner wall of the movable cavity 41. In other embodiments, the first limiting part 52 and the second limiting part 53 may also be configured as a slot, with one end of the first elastic member 6 being engaged in the slot. Alternatively, the first limiting part 52 and the second limiting part 53 may also be configured as other structures capable of limiting one end of the first elastic member 6. The present invention does not impose specific limitations on these embodiments.

[0073] like Figure 1 and Figure 13 As shown, the rod body includes a first rod 1 and a second rod 2 that can slide relative to each other along the axial direction. One of the first rod 1 and the second rod 2 is connected to a slider 5, and the other is connected to the second end of the handle 4. When the user controls the slider 5 to slide relative to the handle 4, the slider 5 can drive the first rod 1 or the second rod 2 connected to it to slide relative to the other, so that the implant 81 disengages from the distal end of the rod body under the action of relative sliding between the first rod 1 and the second rod 2, and the implantation device releases the implant 81. The operation is simple and convenient.

[0074] like Figures 2 to 3 As shown, in one embodiment, the first rod 1 is connected to the handle 4, and the second rod 2 is connected to the slider 5. The implant 81 is then assembled to the distal end of the second rod 2. After the implant 81 exits the medullary tract, the user controls the slider 5 to slide relative to the handle 4. The slider 5 can then drive the second rod 2 to slide relative to the first rod 1, and the implant 81 disengages from the second rod 2 under the agglutination of the medullary tract opening. The second rod 2 can be a solid rod, and the first rod 1 can be a sleeve fitted around the outer periphery of the second rod 2 to limit the sliding direction of the second rod 2 and improve its stability during sliding. Alternatively, both the first rod 1 and the second rod 2 can be solid rods, with an axially extending sliding groove on the first rod 1 and a slider that slides into the sliding groove on the second rod 2. Any method that can stably limit the axial sliding of the second rod 2 is acceptable, and this invention does not impose any specific limitations.

[0075] like Figure 22As shown, when the femoral medullary tract A and the tibial medullary tract B are not on the same straight line, the two implants 81 need to pass through the two medullary tracts respectively. The two implants 81 are defined as the first implant 813 and the second implant 814. In this case, the first implant 813 needs to be assembled to the distal end of the second sliding rod 22 first, and after the first implant 813 passes through the femoral medullary tract A, the implantation device withdraws from the femoral medullary tract A. Then, the second implant 814 is assembled to the distal end of the first sliding rod 21, and the second implant 814 passes through the tibial medullary tract B. This results in a significant amount of time being spent assembling the implants 81 during the operation, prolonging the operation time.

[0076] To avoid repeated assembly of the implant 81 affecting the surgical process, such as Figure 3 and Figure 12 As shown in the illustrated embodiment, the first rod body 1 includes a first stationary rod 11 and a second stationary rod 12. The first stationary rod 11 is disposed at the second end of the handle 4, and the second stationary rod 12 is detachably connected to the distal end of the first stationary rod 11. The second rod body 2 includes a first sliding rod 21 and a second sliding rod 22. The first sliding rod 21 is connected to the sliding member 5 and is slidably disposed on the first stationary rod 11. The second sliding rod 22 is slidably disposed on the second stationary rod 12. The distal end of the first sliding rod 21 can slide out or retract from the first stationary rod 11, and both the proximal and distal ends of the second sliding rod 22 can slide out or retract from the second stationary rod 12. The connection between the first sliding rod 21 and the sliding member 5 includes, but is not limited to, screw connections, and can also be achieved through welding, gluing, snap-fitting, or plugging.

[0077] like Figures 20 to 21 As shown, before the surgery, the first implant 813 is first assembled to the distal end of the second sliding rod 22, the second implant 814 is assembled to the distal end of the first sliding rod 21, and the suture 82 connecting the first implant 813 and the second implant 814 is wrapped around the annular groove 45 and tightened. During the surgery, the distal ends of the second stationary rod 12 and the second sliding rod 22 are first inserted into the skin through the surgical incision, and the first implant 813 is guided through the femoral medullary canal A. After the first implant 813 exits the medullary canal, the first sliding rod 21 is controlled by the slider 5 to slide relative to the first stationary rod 11 towards the first end away from the handle 4. The first sliding rod 21 can drive the second sliding rod 22 to slide relative to the second stationary rod 12 towards the first end away from the handle 4, further pushing the first implant 813 out of the medullary canal. At this time, the suture is loosened, and the first sliding rod 21 and the second sliding rod 22 are controlled by the slider 5 to slide relative to the first stationary rod 11 and the second stationary rod 12 towards the first end closer to the handle 4. The first implant 813 can detach from the distal end of the second sliding rod 22 and remain at the exit of the femoral medullary canal A, and the implanted device is withdrawn from the skin along the original path.

[0078] Then, the second stationary rod 12 and the second sliding rod 22 are detached from the distal end of the first stationary rod 11. The suture 82 is tightened again, and the distal ends of the first stationary rod 11 and the first sliding rod 21 are inserted into the skin through the surgical incision. The second implant 814 is guided through the tibial medullary tract B. After the second implant 814 exits the medullary tract, the first sliding rod 21 is slid away from the handle 4 relative to the first stationary rod 11 by the slider 5, further pushing the second implant 814 out of the medullary tract. At this point, the suture is loosened, and the first sliding rod 21 is slid closer to the handle 4 relative to the first stationary rod 11 by the slider 5. The second implant 814 can then detach from the distal end of the first sliding rod 21 and remain at the exit of the tibial medullary tract B. The implant is then withdrawn from the skin along the original path. Of course, new rods can be added to the distal end of the second stationary rod 12, thus enabling the implantation of two or more implants 81 in a single assembly, further shortening the surgeon's operation time.

[0079] like Figure 3 As shown, the distal end of the second sliding rod 22 is provided with a first assembly part 221 for assembling the first implant 813, and the distal end of the first sliding rod 21 is provided with a second assembly part 211 for assembling the second implant 814. The first assembly part 221 and the second assembly part 211 can clearly define the assembly positions of the first implant 813 and the second implant 814, making it convenient for the user to assemble the implant 81.

[0080] like Figure 3 and Figure 9 As shown in the illustrated embodiment, one end of the implant 81 has an insertion hole 811. The first assembly portion 221 and the second assembly portion 211 are configured as protrusions that can be inserted into the insertion hole 811 of the implant 81. The cooperation between the protrusions and the insertion hole 811 ensures the stability and reliability of the connection between the implant 81 and the first assembly portion 221 and the second assembly portion 211, and also ensures that the implant 81 can be easily separated from the first assembly portion 221 and the second assembly portion 211. The inner diameter of the insertion hole 811 is slightly larger than the outer diameter of the protrusion to prevent the implant 81 from being too tightly inserted into the first assembly portion 221 and the second assembly portion 211, which would make it difficult to separate the implant 81 from the rod. Alternatively, the first assembly portion 221 and the second assembly portion 211 can be configured as the insertion hole 811, and a protrusion that can be inserted into the insertion hole 811 can be provided on the implant 81. Of course, the implant 81 can also be connected to the first assembly portion 221 and the second assembly portion 211 by other means such as snap-fit.

[0081] like Figure 3 and Figure 7As shown, the proximal end of the second stationary rod 12 is provided with a clearance groove 121 for accommodating the second implant 814. The second implant 814, which is assembled to the second assembly part 211, is accommodated in the clearance groove 121, preventing the second implant 814 from protruding from the implantation device and affecting the surgery. At the same time, the clearance groove 121 can also prevent the second implant 814 from accidentally detaching from the second assembly part 211. The end of the second implant 814 away from the second assembly part 211 abuts against the proximal end of the second sliding rod 22. When the first sliding rod 21 drives the second implant 814 to slide away from the first end of the handle 4, the end of the second implant 814 away from the first sliding rod 21 pushes the second sliding rod 22 to slide away from the first end of the handle 4.

[0082] like Figure 3 and Figure 10 As shown, the distal end of the second stationary rod 12 is provided with a support portion 123 that can abut against the side wall of the first implant 813. The support portion 123 can prevent the first implant 813 from rotating relative to the second sliding rod 22 during the implantation process, thereby improving the stability of the first implant 813 during the implantation process, and can also prevent the first implant 813 from accidentally detaching from the first assembly portion 221.

[0083] like Figure 3 As shown, the implantation device also includes a second elastic element 3, one end of which is connected to the distal end of the second sliding rod 22. After the first implant 813 is assembled to the first assembly part 221, the end of the second elastic element 3 away from the second sliding rod 22 abuts against the first implant 813, and the second elastic element 3 is in a compressed state, capable of applying an elastic force toward the first implant 813. Of course, when the second stationary rod 12 is mounted on the first stationary rod 11, the first sliding rod 21 and the second sliding rod 22 can also be connected by a thin wire or rod, so that the second sliding rod 22 moves synchronously with the first sliding rod 21, so that the user can control the second sliding rod 22.

[0084] like Figures 20 to 21As shown, during the implantation process, the suture 82 is first tightened to ensure a stable connection between the first implant 813 and the first assembly part 221, preventing the first implant 813 from detaching from the first assembly part 221 under the elastic force of the second elastic member 3. After the first implant 813 exits the medullary tract, the sliding member 5 controls the first sliding rod 21 and the second sliding rod 22 to slide relative to the first stationary rod 11 and the second stationary rod 12 towards the first end away from the handle 4, further pushing the first implant 813 out of the medullary tract. At this time, the suture is loosened, and the first implant 813 detaches from the first assembly part 221 under the elastic force of the second elastic member 3. Then, the sliding member 5 controls the first sliding rod 21 and the second sliding rod 22 to slide relative to the first stationary rod 11 and the second stationary rod 12 towards the first end closer to the handle 4, ensuring that the first implant 813 is completely detached from the first assembly part 221 and remains at the exit of the femoral medullary tract A.

[0085] like Figures 4 to 5 As shown, in this embodiment, one end of the first elastic member 6 is sleeved on the second limiting part 53, and the other end abuts against the end wall of the movable cavity 41 near the second end of the handle 4. When the slider 5 slides towards the second end of the handle 4, the first elastic member 6 is compressed, and an elastic force is applied to the slider 5 toward the first end of the handle 4. When the user releases the push button 7, the slider 5 will slide back to its original position near the first end of the handle 4 under the action of the elastic force of the first elastic member 6.

[0086] like Figure 3 and Figures 6 to 8 As shown, the implantation device sleeve 9 is used to detachably fix the second stationary rod 12 to the distal end of the first stationary rod 11, thereby facilitating the user's installation or removal of the second stationary rod 12 and saving surgical time. Specifically, the sleeve 9 includes an annular portion 91 and a protruding portion 92 protruding from the wall of the annular portion 91. The proximal end of the second stationary rod 12 has a clearance opening 122 through which the protruding portion 92 can pass. The outer peripheral wall of the distal end of the first stationary rod 11 has a limiting groove 111 that can engage with the protruding portion 92. The sleeve 9 can be fitted onto the outer periphery of the second stationary rod 12, and the protruding portion 92 can engage with the limiting groove 111 after passing through the clearance opening 122 to fix the second stationary rod 12 and the first stationary rod 11. When it is necessary to remove the second stationary rod 12, the sleeve 9 is slid axially out of the limiting groove 111 and the clearance opening 122, and the second stationary rod 12 can be removed from the distal end of the first stationary rod 11. Furthermore, the installation process of bushing 9 is simple and convenient, making it easy for users to operate. Of course, the second stationary rod 12 can also be detachably connected to the first stationary rod 11 by means of screws or snap-fits, etc., and no specific restrictions are made here.

[0087] like Figure 4 and Figure 12As shown, the handle 4 may also include a cover 44 that closes to the opening of the movable cavity 41, which facilitates the assembly or replacement of components inside the movable cavity 41 when the cover 44 is opened. The cover 44 can be disposed at any position on the handle body 43, such as at the connection between the handle body 43 and the first stationary rod 11. In this case, the first stationary rod 11 is fixed to the cover, and the first sliding rod 21 is slidably disposed on the cover 44.

[0088] like Figures 13 to 14 As shown, in another embodiment, the first rod 1 is connected to the slider 5, and the second rod 2 is connected to the handle 4, with the implant 81 assembled to the distal end of the first rod 1. After the implant 81 exits the medullary tract, the user controls the slider 5 to slide relative to the handle 4. The slider 5 can drive the first rod 1 to slide relative to the second rod 2, and the implant 81 disengages from the first rod 1 under the pushing action of the second rod 2. The second rod 2 can be a solid rod, and the first rod 1 can be a sleeve fitted around the outer periphery of the second rod 2 to restrict the sliding direction of the first rod 1 and improve the stability of the second rod 2 during sliding. Alternatively, both the first rod 1 and the second rod 2 can be solid rods, with an axially extending sliding groove on the first rod 1 and a slider that slides into the sliding groove on the second rod 2. The invention does not impose specific limitations on these features, as long as the axial sliding of the first rod 1 is stably restricted and the second rod 2 can push against the implant 81.

[0089] like Figure 14 and Figure 16 As shown, the distal end of the first rod 1 is provided with a receiving groove 13 for accommodating the implant 81. The receiving groove 13 can prevent the implant 81 from protruding from the implantation device and affecting the surgery. At the same time, the receiving groove 13 can also prevent the second implant 814 from accidentally detaching from the first rod 1. The implant 81 can only enter and exit the receiving groove 13 through the end away from the handle 4, thus preventing the implant 81 from accidentally detaching from the receiving groove 13. The second rod 2 can enter the receiving groove 13 from the end of the receiving groove 13 closest to the handle 4. Before the surgery, the implant 81 is first assembled into the receiving groove 13. One, two or more implants 81 can be assembled into the receiving groove 13 as needed.

[0090] When an implant 81 is installed in the receiving slot 13, the distal ends of the first rod 1 and the second rod 2 are first inserted into the skin through the surgical incision. The first rod 1 guides the implant 81 through the bone marrow tract. After the implant 81 exits the bone marrow tract, the user controls the slider 5 to slide relative to the handle 4. The slider 5 can drive the first rod 1 to slide relative to the second rod 2 towards the side closer to the handle 4. The second rod 2 can push the implant 81 out of the receiving slot 13, thereby releasing the implant 81. Then the implant device is withdrawn from the skin along the original path.

[0091] like Figure 17 As shown, when two implants 81 are assembled in the receiving groove 13 and the two implants 81 need to pass through two medullary canals respectively, the two implants 81 are defined as the first implant 813 and the second implant 814. The first implant 813 is located on the side of the second implant 814 away from the handle 4. First, the distal ends of the first rod 1 and the second rod 2 are inserted into the skin through the surgical incision, and the first implant 813 and the second implant 814 are guided through the femoral medullary canal A by the first rod 1. After the first implant 813 exits the medullary canal, the user controls the first rod 1 to slide relative to the second rod 2 towards the handle 4 through the slider 5. The second rod 2 can push the first implant 813 out of the receiving groove 13, while the second implant 814 remains in the receiving groove 13. Then, the implantation device is withdrawn from the femoral medullary canal A along the original path. The second implant 814 is then guided through the tibial bone marrow tract B by the first rod 1. After the second implant 814 exits the bone marrow tract, the user further controls the first rod 1 to slide relative to the second rod 2 towards the side closer to the handle 4 by the slider 5. The second rod 2 can push the second implant 814 out of the receiving groove 13, and then withdraw the implant device from the skin along the original path.

[0092] like Figure 14 and Figure 16 As shown, the first rod 1 is also provided with a suture groove 14 extending axially. The suture 82 connecting the two implants 81 can pass through the suture groove 14 and then wrap around the annular groove 45, which serves to hide the suture 82, ensure that the suture 82 is neat, and prevent the suture 82 from wrapping around or protruding from the first rod 1 and affecting the operation.

[0093] like Figures 14 to 15 As shown, in this embodiment, one end of the first elastic member 6 is sleeved on the first limiting part 52, and the other end abuts against the end wall of the movable cavity 41 near the first end of the handle 4. When the slider 5 slides towards the first end of the handle 4, the first elastic member 6 is compressed, and an elastic force is applied to the slider 5 toward the second end of the handle 4. When the user releases the push button 7, the slider 5 will slide back to its original position near the second end of the handle 4 under the action of the elastic force of the first elastic member 6.

[0094] like Figures 20 to 22As shown, the present invention also provides an implantation system, including an implantation component 8 and the aforementioned implantation device. The implantation component 8 includes at least two implants 81, which are connected by sutures 82. Each implant is connected to the distal end of a rod. The implants 81 can be made of stainless steel, titanium alloy, or PEKE material, etc., and the sutures 82 are made of a flexible material, such as ultra-high molecular weight polyethylene. Each implant 81 has two through holes 812. The sutures 82 first pass through the two through holes 812 of the first implant 813, then through the two through holes 812 of the second implant 814, and finally return to the two through holes of the first implant 813 to form a loop. After both implants 81 are implanted to the medullary tract outlet, the sutures 82 are pulled out, knotted, and finally the excess sutures 82 are cut off.

[0095] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An implantable device, characterized in that, include: A handle having a first end and a second end extending axially, the handle having a movable cavity; A sliding member is disposed at the second end near the handle and is slidably disposed within the movable cavity along the axial direction; as well as A rod having a proximal end connected to the slider and a distal end remote from the handle, the rod comprising a first rod and a second rod capable of sliding relative to each other along an axial direction, one of the first rod and the second rod being connected to the slider and the other being connected to a second end of the handle, thereby pushing the slider to release the implant located at the distal end of the rod.

2. The implantation device according to claim 1, characterized in that, The implantation device further includes a first elastic element and a push button. The first elastic element is disposed in the movable cavity and is capable of applying an elastic force to the sliding element. The handle is provided with a slide groove, one end of the push button is connected to the slider, and the other end extends out of the handle through the slide groove.

3. The implantation device according to claim 1, characterized in that, The first rod is connected to the handle, and the second rod is connected to the slider.

4. The implantation device according to claim 3, characterized in that, The first rod includes: A first stationary lever is disposed at the second end of the handle; and The second stationary rod is detachably connected to the distal end of the first stationary rod; The second rod includes: A first sliding rod, connected to the sliding member, is slidably disposed on the first stationary rod; and The second sliding rod is slidably disposed on the second stationary rod.

5. The implantation device according to claim 4, characterized in that, The distal end of the second sliding rod is provided with a first mounting part for assembling the implant; The distal end of the first sliding rod is provided with a second assembly part for assembling the implant; The first assembly portion and / or the second assembly portion are configured as protrusions that can be inserted into the insertion hole of the implant.

6. The implantation device according to claim 4, characterized in that, Also includes: The second elastic element has one end connected to the distal end of the second sliding rod, and the other end able to abut against the implant, so that the second elastic element is in a compressed state and can apply an elastic force toward the implant.

7. The implantation device according to claim 4, characterized in that, The proximal end of the second stationary rod is provided with a clearance groove for accommodating the implant.

8. The implantation device according to claim 4, characterized in that, The distal end of the second stationary rod is provided with a support portion that can abut against the side wall of the implant.

9. The implantation device according to claim 4, characterized in that, Also includes: A bushing is used to detachably secure the second stationary rod to the distal end of the first stationary rod.

10. The implantation device according to claim 1, characterized in that, The first rod is connected to the slider, and the second rod is connected to the handle.

11. The implantation device according to claim 10, characterized in that, The first rod body is provided with a receiving groove for accommodating the implant.

12. The implantation device according to claim 10, characterized in that, The first rod body is also provided with a wiring groove extending along the axial direction.

13. An implantation system, characterized in that, include: An implantable component includes at least two implants connected by sutures. as well as The implantation device according to any one of claims 1 to 12, wherein the implant is connected to the distal end of the rod.

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