Skeletal marker and marker dismounting tool

Abstract

The application provides a bone marker and a marker dismounting tool. The bone marker comprises an implant and an external connecting piece which are connected into one body. The external connecting piece is fixed to one end of the implant and comprises a limiting part and a pulling force receiving part. The limiting part protrudes from the peripheral wall of the implant and extends outward along the end of the implant which is relatively close to the pulling force receiving part. The external connecting piece has at least one distal end which is away from the implant. One of the distal ends is provided with an interface which is used for matching a registration probe. The bone marker comprises an implant and an external connecting piece which are connected into one body. The external connecting piece is fixed to one end of the implant and comprises a limiting part and a pulling force receiving part. The limiting part protrudes from the peripheral wall of the implant and extends outward along the end of the implant which is relatively close to the pulling force receiving part. The external connecting piece has at least one distal end which is away from the implant. One of the distal ends is provided with an interface which is used for matching a registration probe.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a bone marker and a tool for assembling and disassembling the marker. Background Technology

[0002] When performing joint replacement surgery using orthopedic surgical robots, a type of marker positioning pin is used. This marker positioning pin has an interface that adapts to a registration probe. After the marker positioning pin is implanted into the bone, the registration probe works with the interface to assist the orthopedic surgical robot in registration, so that the orthopedic surgical robot can track the position of the bone and improve the accuracy of the surgery.

[0003] Traditional marker-positioning pins require drilling holes in the bone before implantation, and then inserting the marker-positioning pins into the holes. Undoubtedly, traditional marker-positioning pin implantation involves many steps, is time-consuming, and results in low surgical efficiency. Furthermore, removing the marker-positioning pins after surgery is difficult and can easily cause irreparable damage to the bone. Summary of the Invention

[0004] In view of this, the present invention provides a bone marker that can improve the problems of complicated operation and difficult postoperative removal when the marker positioning nail is implanted into the bone. The bone marker can be implanted into the bone more easily and removed from the bone more easily, thereby improving the efficiency of orthopedic surgery.

[0005] The bone marker provided by the present invention includes an implant and an external component connected as one piece. The external component is fixed at one end of the implant and includes a limiting part and a pull-out force-bearing part. The limiting part protrudes from the outer peripheral wall of the implant and extends outward along the end away from the pull-out force-bearing part and relatively close to the implant. The external component has at least one distal end opposite to the implant. One of the distal ends is provided with an interface for cooperating with a registration probe.

[0006] The skeletal marker provided by this invention has the following beneficial effects:

[0007] 1) The distal end provides a force application point for external disassembly tools to apply pushing pressure to the external connector. Therefore, it is not necessary to drill holes in the bone before implanting the bone marker. The external disassembly tools can be used to apply pushing pressure to the distal end so that the implant can be directly inserted into the bone, thereby completing the implantation of the bone marker into the bone. This reduces the steps required for bone implantation and improves the efficiency and convenience of bone marker implantation into the bone.

[0008] 2) As the implant is gradually inserted into the bone, the limiting part gradually approaches the bone until it abuts against the bone. This limits the maximum depth of the bone marker insertion into the bone. At the same time, the abutting part of the limiting part against the bone keeps the pull-out force-bearing part outside the bone. This makes it convenient for external disassembly tools to connect to the pull-out force-bearing part and apply pull-out force to it. When using external disassembly tools to pull the bone marker out of the bone, the external disassembly tools will not damage the bone, improving the safety of the surgery. The fact that the pull-out force-bearing part is outside the bone also makes it easier for external disassembly tools to connect to the pull-out force-bearing part, allowing the bone marker to be pulled out of the bone faster and more efficiently.

[0009] In one embodiment, the pull-out force-bearing part is fixed at the end of the limiting part that is relatively far away from the implant, and a holding space is provided between the end of the pull-out force-bearing part that is relatively close to the implant and the limiting part, and the holding space is for external disassembly and assembly tools to be inserted.

[0010] This design ensures that the external disassembly tool is stably stressed after being inserted into the holding space, and that the external disassembly tool and the external disassembly tool are stably connected and in contact. The holding space facilitates confirmation that the external disassembly tool and the pull-out force-bearing part have formed a reliable connection, thus preventing accidental separation between the external disassembly tool and the pull-out force-bearing part when the bone marker is pulled out due to a lack of confirmation of a reliable connection, thereby reducing the risk of accidents.

[0011] In one embodiment, the outer peripheral wall of the implant is threaded, and the external connector also includes a screwing force-bearing part that protrudes outward relative to the axis of the implant in the radial direction of the implant.

[0012] This configuration combines applying pushing force to the distal end with applying twisting torque to the twisting force-bearing part to implant the bone marker into the bone. The combination of these two force application methods reduces the difficulty of inserting the implant into the bone. First, pushing force is applied to the distal end to insert part of the implant into the bone, and then twisting torque is applied to the twisting force-bearing part to make the remaining part of the implant spiral into the bone, thereby reducing the resistance of the remaining implant into the bone. The threaded fit between the implant and the bone further improves the reliability of the connection between the bone marker and the bone, which can prevent the bone marker from loosening and shaking relative to the bone, and prevent the bone marker from leaving the bone, without affecting the orthopedic surgical robot's tracking of the bone position.

[0013] In one embodiment, the screwing force-bearing part includes a screwing ridge, which is located outside the helical center of the thread.

[0014] In one embodiment, the screwing force-bearing part is located at the end of the pulling force-bearing part that is relatively far away from the implant, and forms the outer part at the farthest end away from the implant, with the interface located at the end of the screwing force-bearing part that is relatively far away from the implant.

[0015] With this configuration, the screw-on force-bearing part can be connected to the external disassembly and assembly tool by being clamped or fixedly mounted. This makes it easier, more convenient, and less strenuous for the external disassembly and assembly tool to connect to the screw-on force-bearing part and apply torque to it.

[0016] In one embodiment, the outer peripheral wall of the implant is further provided with a chip removal groove, which extends from the end of the implant that is relatively close to the external connector to the end of the implant that is relatively far away from the external connector.

[0017] With this design, when the implant is inserted into the bone via a spiral motion, the bone debris generated can be promptly discharged through the debris removal channel, preventing bone debris from accumulating in the bone hole and increasing the resistance to further implantation of the implant into the bone.

[0018] In one embodiment, the external connector further includes a holding portion, which is fixed to one end of the pull-out force-bearing portion that is relatively close to the implant and extends outward to be fixedly connected to the limiting portion. The pull-out force-bearing portion protrudes from the outer peripheral wall of the holding portion.

[0019] With this configuration, the held part provides a point for the external disassembly tool to grasp the external component and apply force. Thus, the bone marker can be obtained by the external disassembly tool grasping the external component. When the external disassembly tool grasps and connects the held part, the position of the pull-out force-bearing part relative to the external disassembly tool, as well as the position of the distal end relative to the external disassembly tool, both satisfy the relative positional relationship required for the external disassembly tool to apply a pull-out force to the pull-out force-bearing part or a push-out force to the distal end. That is, after the external disassembly tool grasps and connects the held part, the position of the bone marker relative to the external disassembly tool does not need to be adjusted, and force can be applied to the pull-out force-bearing part or the distal end without the need for other tools and equipment to obtain the bone implant. This provides convenience for the implantation and removal of the bone implant from the bone.

[0020] In one embodiment, at least one distal end is disposed at the end of the pull-out force-bearing portion that is relatively far from the implant, and the periphery of the distal end protrudes from the outer peripheral wall of the holding portion.

[0021] With this configuration, the external disassembly tool can simultaneously connect to the distal end and the end of the pull-off force-bearing part that is relatively far from the implant, thereby clamping the external component more securely. When holding the bone marker and implanting the bone marker into the bone, the position of the bone marker relative to the external disassembly tool can remain fixed.

[0022] The present invention also provides a marker installation and removal tool, which is specifically designed for implanting and removing bone markers from bones. The implantation and removal of bone markers do not require the use of other tools, enabling efficient implantation and removal of bone markers.

[0023] The marking tool provided by the present invention includes a pressing component, a gripping component, and a control component. The pressing component includes a supporting end. The gripping component is movably connected to the pressing component and includes a gripping portion. The control component is connected to the gripping component and has a first control position that drives the gripping portion to a position relatively close to the axis of the supporting end, and a second control position that drives the gripping portion to a position relatively far away from the axis of the supporting end.

[0024] The marking tool provided by this invention has the following advantages:

[0025] 1) The marker removal and installation tool can directly apply pushing pressure to the distal end of the bone marker through the holding end, without the need to drill holes in the bone in advance or use other tools and instruments. The bone marker implant can be directly inserted into the bone by simply pushing the external part of the bone marker with the marker removal and installation tool. After the switching control part reaches its first control position, the implant can be pulled out of the bone without the need for other tools and instruments, simply by applying pulling force to the pulling force part of the bone marker through the gripping part. The implantation and removal of the bone marker are completed using a single bone marker removal and rotation tool, which improves the convenience of operation, saves operation time, reduces operation steps, and improves the efficiency of orthopedic surgery.

[0026] 2) The pressing component applies a pushing force to the bone marker by holding one of the distal ends of the bone marker with its holding end, so that the implant is gradually inserted into the bone. When the limiting part abuts against the outer surface of the bone, the pressing component will still not contact the outer surface of the bone. Therefore, there is no risk of bone damage when the marker removal and removal tool is used. At the beginning of applying a pulling force to the pulling force part using the gripping part, the gripping part and the pressing component are also located outside the bone and will not contact the outer surface of the bone. Therefore, there is also no risk of bone damage. This ensures the safety of bone marker implantation and removal.

[0027] In one embodiment, when the control member is in the first control position, the gripping portion is spaced apart towards the abutting end.

[0028] With this configuration, when the control component is in the first control position, the gripping part and the supporting end can apply forces with opposite directions to the pulling force-bearing part and the distal end, respectively. This restricts the external component between the gripping part and the supporting end, which facilitates the use of the marker removal tool to pick up the skeletal marker. During the picking process, the movement of the external component relative to the marker removal tool is restricted by the gripping part and the supporting end, making it less likely to fall off the marker removal tool.

[0029] In one embodiment, when the control member is in the first control position, the distance from the gripping part to the abutment end in the axial direction reaches its maximum value.

[0030] With this design, no matter how far the gripper moves relative to the pressing part, the gripping part will never come into contact with the skeleton, thus fundamentally eliminating the possibility of the gripper squeezing or scratching the skeleton and greatly improving the safety of the marking part assembly and disassembly tool.

[0031] In one embodiment, the control element includes a drive element movably connected to the gripper and slidably disposed relative to the presser along a preset drive trajectory. The drive element is configured to slide close to the presser to reach a second control position and to slide away from the presser to reach a first control position.

[0032] This configuration allows for the application of a positive thrust to the drive element to make it slide away from the press-fit component, or a reverse thrust to make it slide closer to the press-fit component, thereby indirectly adjusting the position of the gripper relative to the supporting end. As a result, the position of the gripper is more easily controlled and changed, making adjustment easier, operation simpler, and application of force to the drive element more comfortable.

[0033] In one embodiment, the control element further includes a second elastic element, one end of which is connected to the drive element and the other end of which is connected to the press-fitting element. The second elastic element has elastic potential energy that can drive the drive element away from the second control position and slide closer to the first control position.

[0034] With this configuration, without the operator applying any adjustment force to the drive element, the second elastic element can apply a spring force to the drive element, moving it to the first control position. This ensures that the gripper maintains force on the pulling force-bearing part. Therefore, it is easier and less strenuous to remove the bone marker using the marker removal tool. The second elastic element's spring force on the drive element ensures a stable and reliable connection between the gripper and the pulling force-bearing part, eliminating the risk of failure in removing the bone marker due to accidental separation of the gripper and the pulling force-bearing part.

[0035] In one embodiment, the marker removal and installation tool further includes a control guide, a pressing component is fixedly connected to one end of the control guide, and a driving element slides with the control guide in the length direction of the control guide.

[0036] With this configuration, the control guide can define the preset drive trajectory of the reciprocating motion of the drive element. The movement trajectory and direction of the drive element relative to the press-fitting part are determined, so it is not easy to cause the problem of drive element movement deviation. The elastic force of the second elastic element acting on the drive element can be fully used to drive the drive element to move towards the first control position, and the effect of the elastic force is maximized.

[0037] In one embodiment, the drive element is slidably sleeved on the control guide, and the second elastic element is sleeved on the control guide.

[0038] With this configuration, the sliding connection between the drive element and the control guide, and between the second elastic element and the control guide, is reliable, and neither the drive element nor the second elastic element is easily disengaged from the control guide.

[0039] In one embodiment, the marker removal and installation tool further includes a handheld component fixedly connected to the other end of the control guide. The handheld component has a sliding groove that passes through one end of the handheld component near the bone marker. The driving element includes a trigger part, which is located in the sliding groove and protrudes relative to the outer peripheral wall of the handheld component.

[0040] With this configuration, the trigger is located inside the sliding groove, making it easier for personnel to apply force to the trigger. This significantly reduces the difficulty of switching the position of the drive element and improves the efficiency of adjusting and switching the position of the gripper relative to the pressing part.

[0041] In one embodiment, the gripping portion is bent at the axial center near the abutting end to form a pulling force application portion.

[0042] This design allows the gripper to more smoothly resist the pulling force section, thereby applying greater pressure to facilitate the rapid removal of the implant from the bone.

[0043] In one embodiment, there are multiple grippers, and the control member connects to the multiple grippers. The multiple grippers are arranged at circumferential intervals along the abutment end.

[0044] With this configuration, when multiple grippers apply pulling force to the pulling force-bearing part, the multiple grippers share the reaction force of the pulling force-bearing part, reducing the stress load on a single gripper and preventing deformation or damage to the gripper. At the same time, the various components of the force applied by the multiple grippers to the pulling force-bearing part are evenly distributed in the circumferential direction of the bone marker. Ultimately, the direction of the resultant pulling force on the bone marker tends to be consistent with the axial direction of the bone marker. Therefore, the bone marker can be pulled out more effortlessly, quickly, and efficiently, avoiding the bone marker from being misaligned relative to the bone hole during pull-out, thus preventing damage to the bone.

[0045] In one embodiment, the gripper is rotatably disposed on the periphery of the press-fitting member. The gripper also includes a control force receiving part, which is integrated with the gripping part. The control member is connected to the control force receiving part and is configured to drive the gripper to rotate relative to the press-fitting member, thereby changing the angle between the gripper and the abutment end axially.

[0046] With this configuration, as the axial angle between the gripper and the supporting end decreases, the gripping part gradually moves closer to the axis of the supporting end; as the axial angle between the gripper and the supporting end increases, the gripping part gradually moves away from the axis of the supporting end. As a result, the gripper can quickly respond to changes in the force exerted by the control member on the control force-bearing part, thereby changing the relative position of the gripping part and the supporting end in real time, resulting in higher sensitivity in switching the gripping part state.

[0047] In one embodiment, the gripper further includes a hinge portion, with the force-receiving portion and the gripping portion respectively formed at both ends of the gripper, the hinge portion being located between the two ends of the gripper and rotatably connected to the press-fitting component.

[0048] With this configuration, the gripper rotates around the hinge of the press-fitting component, requiring less space to rotate, which is more conducive to miniaturizing the marking component assembly and disassembly tool. At the same time, the gripper is less likely to affect the muscle tissue outside the bone during rotation, making it easier to reduce the size of the incision in the muscle tissue.

[0049] In one embodiment, the control member includes a first elastic element, one end of which is connected to the gripping member and the other end of which is connected to the pressing member. The first elastic element has elastic potential energy that drives the gripping part to rotate and approach the axis of the abutment end.

[0050] With this configuration, the first elastic element has the elastic potential energy to drive the gripper to resist the pulling force part, thereby enabling the gripper to stably resist the pulling force part. When the bone marker is pulled out of the bone using the marker removal tool, it can be ensured that the gripper does not detach from the pulling force part, and no manual force is required from the gripper to ensure this.

[0051] In one embodiment, the control element further includes a drive element that is slidably disposed in the axial direction of the abutment end. The drive element includes a drive ramp, and the distance between the drive ramp and the axis of the abutment end tends to increase in the direction close to the press-fitting member. The control force-bearing part slides against the drive ramp.

[0052] With this configuration, as the driving element moves closer to the press-fit component, the driving ramp can drive the control force-bearing part to gradually move closer to the axis of the supporting end, thereby increasing the angle between the gripper and the axis of the supporting end. This indirectly drives the gripper away from the axis of the supporting end. As the driving element moves away from the press-fit component, the force exerted by the driving ramp on the control force-bearing part changes, thereby allowing the angle between the gripper and the axis of the supporting end to decrease. This indirectly drives the gripper to reset and move closer to the axis of the supporting end.

[0053] In one embodiment, the press-fit component further includes a screw-fit portion, the end of which forms a support end. The screw-fit portion also includes a screw-fit edge located outside the axis of the support end and extending axially in the support end.

[0054] With this configuration, after the screw-fitting part and the screw-force-receiving part form a fixed anti-rotation fit, the press-fitting part can apply a rotational torque to the screw-force-receiving part through the screw-fitting edge, causing the bone marker to be implanted into the bone in a spiral motion, or to be removed from the bone. The bone marker is implanted into the bone in a spiral motion, which helps to reduce the impact force of the bone marker and the marker removal and installation tools on the bone, and reduces the pressure of implantation by completely hammering.

[0055] In one embodiment, the screw-fit part is a screw-fit sleeve, the end of the screw-fit sleeve facing the bone forms a supporting end, and the screw-fit sleeve has a screw-fit prism hole, the screw-fit edge being the edge of the inner peripheral wall of the screw-fit prism hole.

[0056] With this configuration, the screwing sleeve is connected to the external part of the bone marker by means of the screwing force-bearing part of the bone marker. This allows the operator to rotate the screwing sleeve circumferentially to screw the bone marker into or out of the bone. The opening size required to cut into the muscle tissue covering the bone is smaller, which means that the muscle opening size required for the marker removal and installation tool to connect to the bone marker is reduced, which facilitates faster postoperative healing and recovery of the muscle tissue.

[0057] In one embodiment, the marker removal and installation tool further includes an external pressure receiving part, which is fixedly disposed axially relative to the pressing part at the abutment end.

[0058] With this setup, personnel can indirectly exert a pushing force on the distal end of the bone marker by applying pressing or impact pressure to the external pressure receiving part, thereby enabling the bone marker to be implanted into the bone.

[0059] The present invention also provides a complete set of skeletal marking devices, including the above-mentioned skeletal marking components and the above-mentioned marking component assembly and disassembly tools; the pressure of the supporting end acts on the distal end, and when the control component is in the first control position, the pressure of the gripping part acts on the pulling force part.

[0060] In one embodiment, the external connector further includes a holding portion fixed to one end of the pull-out force-bearing portion near the implant, the pull-out force-bearing portion protruding from the outer peripheral wall of the holding portion; when the control member is in the first control position, the gripping portion securely holds the holding portion.

[0061] With this configuration, the gripper can restrict the movement of the bone marker relative to the holding end and the gripper by fixing and clamping the held part. In other words, the position and posture of the bone marker relative to the marker removal and assembly tool does not change. Therefore, the bone marker held by the marker removal and assembly tool can be directly implanted into the bone without adjusting or confirming the position and posture of the bone marker before implantation.

[0062] In one embodiment, the outer peripheral wall of the implant is threaded, and the external connector further includes a screwing force-bearing part that protrudes outward relative to the axis of the implant in the radial direction of the implant; the press-fitting part further includes a screwing mating part that is adapted to the screwing force-bearing part and is anti-rotation fixed in the circumferential direction of the abutment end. Attached Figure Description

[0063] Figure 1 This is a schematic diagram illustrating the adaptation of a skeletal marker and a registration probe according to an embodiment of the present invention;

[0064] Figure 2 This is a three-dimensional structural diagram of a skeletal marker according to an embodiment of the present invention;

[0065] Figure 3 This is a schematic diagram of a bone marker implanted in the bone according to an embodiment of the present invention;

[0066] Figure 4 This is a three-dimensional structural diagram of a marker assembly / disassembly tool according to an embodiment of the present invention;

[0067] Figure 5 This is a partial cross-sectional schematic diagram of a marker removal and assembly tool according to an embodiment of the present invention;

[0068] Figure 6 This is a partial structural diagram of a marker removal and installation tool according to an embodiment of the present invention;

[0069] Figure 7 This is a three-dimensional structural diagram of a marker assembly / disassembly tool according to an embodiment of the present invention;

[0070] Figure 8 This is a three-dimensional structural diagram of a marker assembly / disassembly tool according to an embodiment of the present invention.

[0071] Explanation of reference numerals in the attached figures:

[0072] 100. Skeletal marker; 10. Implant; 11. Implant cone tip; 12. Implant rod; 13. Thread; 14. Chip removal groove; 20. External connector; 21. Limiting part; 22. Pull-out force-bearing part; 23. Tightening force-bearing part; 231. Tightening protrusion; 24. Holdable part; 25. Holding space; 26. Distal end; 30. Interface; 300. Registration probe;

[0073] 200. Marker assembly / disassembly tool; 40. Press-fitting component; 41. Support end; 42. Tightening fitting part; 421. Tightening fitting prism hole; 50. Gripping component; 51. Gripping part; 511. Pulling force application part; 52. Control force receiving part; 53. Hinge part; 60. Control component; 61. Drive element; 611. Trigger part; 612. Sliding sleeve; 613. Expanding tube; 6131. ​​Drive inclined surface; 62. First elastic element; 63. Second elastic element; 70. Mounting ring; 80. Control guide component; 90. Handheld component; 91. Pushing slide. Detailed Implementation

[0074] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0075] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0076] This invention provides a bone marker 100, a medical device used in conjunction with an orthopedic surgical robot to assist in performing orthopedic surgery. The bone marker 100 is implanted within the bone to help the orthopedic surgical robot track the bone's position, thereby improving surgical precision. The bone marker 100 can be applied to bone tracking in joint replacement surgery, maintaining relative fixation between itself and the bone after implantation. Of course, the bone marker 100 can also be applied to bone tracking in other types of orthopedic surgeries.

[0077] Before the bone marker 100 is implanted into the bone, an incision needs to be made in the muscle tissue covering the bone to allow the bone marker 100 to extend into the patient's body and connect to the bone along the muscle incision, and to allow the bone marker 100 to be removed from the bone and detached from the patient's body through the muscle incision. Please refer to [link to relevant documentation]. Figure 3 , Figure 3 The diagram illustrates the relative positions of the bone, muscle tissue, and bone marker 100 when the bone is implanted. The muscle incision also allows external disassembly tools to be inserted into the patient's body to connect to the portion of the bone marker 100 that is not yet implanted with bone.

[0078] Specifically, the bone marker 100 provided by this invention includes an implant 10, an external connector 20, and an interface 30. The implant 10 and the external connector 20 are connected as a single unit. The implant 10 is the part of the bone into which the bone marker 100 is to be implanted. After implantation, the implant 10 is tightly fitted and fixedly connected to the bone to facilitate the verification of system coordinates during surgery. The external connector 20 is the part of the bone marker 100 that is not implanted into the bone initially. It is used to connect external disassembly tools, allowing personnel to apply force to the bone marker 100 using external disassembly tools to complete the implantation and removal of the implant 10 from the bone. The interface 30 is located on the external connector 20. When the bone marker 100 is implanted into the bone, i.e., when the implant 10 is inserted into the bone, the interface 30 is located outside the bone, so that the registration probe 300 can cooperate with the interface 30 outside the bone to assist the orthopedic surgical robot in registration.

[0079] Please see Figures 1-2 The implant 10 includes an implant rod 12 in the form of a column, nail, or needle. An external connector 20 is fixedly connected to one end of the implant 10. The external connector 20 includes a limiting part 21 and a pull-out force-bearing part 22, which are fixedly disposed relative to each other. The implant 10 is fixedly protruding from the end of the limiting part 21 facing the bone. The outer periphery of the limiting part 21 protrudes relative to the outer peripheral wall of the implant 10, forming a limiting step between the outer peripheral wall of the implant 10 and the end of the limiting part 21 facing the bone. The pull-out force-bearing part 22 is located at the end of the limiting part 21 that is relatively far away from the implant 10, and both the implant 10 and the limiting part 21 protrude relative to the end of the pull-out force-bearing part 22 facing the bone. The limiting part 21 can gradually approach the bone as the insertion depth of the implant 10 gradually increases until the limiting part 21 abuts against the bone surface. At this time, the insertion depth of the implant 10 into the bone reaches its maximum. The limiting part 21 plays the role of limiting the bone marker 100 from further increasing its insertion depth into the bone.

[0080] The end of the limiting part 21 facing the bone refers to the end of the limiting part 21 that is relatively close to the bone when the end of the implant 10 that is relatively far away from the external member 20 points to the bone; the end of the pulling force part 22 facing the bone refers to the end of the pulling force part 22 that is relatively close to the bone when the end of the implant 10 that is relatively far away from the external member 20 points to the bone.

[0081] Optionally, the external connector 20 and the implant 10 are coaxially fixedly connected, and the two can be integrally molded.

[0082] Optionally, the outer diameter of the pull-out force-bearing part 22 is the maximum outer diameter of the bone marker 100. The end of the pull-out force-bearing part 22 facing the bone forms a pull-out force bearing surface. An external disassembly tool can come into contact with the pull-out force bearing surface and apply a pull-out force to the pull-out force bearing surface in a direction away from the bone and the implant 10. Finally, the personnel use the external disassembly tool to pull the implant 10 out of the bone.

[0083] Optionally, the implantable rod 12 is a columnar rod structure, the axis of the implantable rod 12 is the axis of the implant 10, the length direction of the implant 10 is the extension direction of the axis of the implant 10, the pull-out force bearing surface is a plane, and the pull-out force bearing surface is perpendicular to the axis of the implant 10.

[0084] Furthermore, in the bone marker 100 provided by the present invention, the external connector 20 has at least one distal end 26 disposed away from the bone. These distal ends 26 can all be connected to an external disassembly / removal tool. The external disassembly / removal tool applies pushing force to the external connector 20 by abutting and pushing the distal end 26. The direction of the pushing force is along the direction close to the bone and the implant 10. Finally, a person uses the external disassembly / removal tool to push the entire bone marker 100 to insert the implant 10 into the bone. One of these distal ends 26 forms the aforementioned interface 30. The distal end 26 being disposed away from the bone means that when the end of the implant 10 relatively away from the external connector 20 points towards the bone, the outer normal of the distal end 26 points away from the bone and the implant 10, allowing the external disassembly / removal tool to move relatively close to the bone marker 100 and directly abut against the distal end 26.

[0085] Optionally, the distal end 26 with the interface 30 is located at the farthest end 26 of the bone marker 100. When the external disassembly tool moves relatively close to the bone marker 100, it can first reach the distal end 26 with the interface 30, or it can first reach the distal end 26 without the interface 30. The farthest end 26 of the bone marker 100 refers to the end of the bone marker 100 that is farthest from the end of the implant 10. The end of the implant 10 is the end of the implant 10 that is relatively far away from the external connector 20, that is, the end of the implant 10 that is first inserted into the bone.

[0086] Optionally, the distal end 26, which is used to contact with external disassembly tools, forms a pressure bearing surface of the bone marker 100. The pressure bearing surface is preferably a plane and perpendicular to the length direction of the implant 10.

[0087] Optionally, the pull-out force-bearing part 22 is located outside the end of the limiting part 21 that is relatively far away from the implant 10. The pull-out force-bearing part 22 and the limiting part 21 are spaced apart in the length direction of the implant 10, thereby forming a holding space 25 between the pull-out force-bearing part 22 and the limiting part 21 for external disassembly and assembly tools to be inserted.

[0088] Specifically, please refer to Figure 2 and Figure 3The external connector 20 also includes a holding portion 24, which is columnar and located between the limiting portion 21 and the pulling force receiving portion 22 along the length of the implant 10. Both ends of the holding portion 24 are fixedly connected to the limiting portion 21 and the pulling force receiving portion 22, respectively. The outer edge of the pulling force receiving portion 22 protrudes relative to the outer peripheral wall of the holding portion 24, thereby forming a step portion between the end of the pulling force receiving portion 22 that is relatively close to the bone, i.e., the pulling force bearing surface, and the outer peripheral wall of the holding portion 24. The holding space 25 is the step angle corresponding to the step portion. A portion of the external disassembly tool can extend into the holding space 25 and can fix and clamp the outer peripheral wall of the held part 24. Thus, the external disassembly tool can clamp the held part 24 and carry and transfer the bone marker 100. After the end of the implant 10 points to the bone, the personnel directly use the external disassembly tool to apply pushing pressure to the distal end 26. When the external disassembly tool carries the bone marker 100 and when the external disassembly tool implants the bone marker 100 into the bone, the position and posture of the bone marker 100 relative to the external disassembly tool are the same.

[0089] Optionally, the holding portion 24 is coaxial with and relatively fixed to the implant 10.

[0090] Optionally, the outer edge of the limiting portion 21 protrudes relative to the outer peripheral wall of the held portion 24, and the external connector 20 forms a necked section at the held portion 24. An annular groove is formed between the portion of the limiting portion 21 protruding from the outer peripheral wall of the held portion 24 and the portion of the pulling force portion 22 protruding from the outer peripheral wall of the held portion 24. This annular groove is the holding space 25 into which the external disassembly tool extends. Thus, the end of the limiting portion 21 away from the bone, that is, the end of the limiting portion 21 facing the pulling force portion 22, can also form the distal end 26 of the external connector 20. In other words, the external disassembly tool can also apply pushing force to the end of the limiting portion 21 away from the bone to insert the implant 10 into the bone.

[0091] Optionally, the implant 10 also includes an implant tip 11, which is located at the end of the implant rod 12 that is relatively far away from the external connector 20. Preferably, the implant tip 11 is coaxially arranged and fixedly connected to the implant rod 12, and the implant tip 11 and the implant rod 12 can be integrally formed.

[0092] Optionally, the outer peripheral wall of the implant rod 12 is provided with a thread 13, which extends helically around the axis of the implant 10. The external connector 20 also includes a screwing force-bearing part 23, which protrudes outward relative to the axis of the implant 10 in the radial direction. The radial direction of the implant 10 is perpendicular to the length direction of the implant 10. Thus, external disassembly tools can apply pushing force to the screwing force-bearing part 23, generating a rotational torque centered on the axis of the implant 10. This torque can drive the implant 10 into the bone in a helical motion. To reduce damage to the bone caused by the implant 10, the thread 13 on the outer peripheral wall of the implant rod 12 is a shallow thread with a triangular tooth profile. Please refer to [link to relevant documentation]. Figures 2-3 In some embodiments, the screwing force-bearing part 23 is fixedly protruding from the end of the pulling force-bearing part 22 that is relatively far away from the bone and the implant 10. The screwing force-bearing part 23 can take various forms, such as a prism-shaped protrusion, for example, a hexagonal prism protrusion similar to a nut, wherein the six protruding edges of the hexagonal prism form a screwing protrusion 231 for external disassembly and assembly tools to apply torque.

[0093] Optional, please refer to Figure 2 The screw-on force-bearing part 23 is used to form the farthest end 26 of the external connector 20 away from the implant 10. The interface 30 is located at the end of the screw-on force-bearing part 23 that is relatively far away from the implant 10 and the bone, which makes it easier to register the probe 300 to adapt to the interface 30.

[0094] Optionally, the outer edge of the pull-out force-bearing portion 22 protrudes relative to the outer peripheral wall of the twisting force-bearing portion 23. The outer peripheral wall of the twisting force-bearing portion 23 and the end of the pull-out force-bearing portion 22 that is away from the implant 10 and the bone form a step. In this case, the end of the pull-out force-bearing portion 22 that is away from the implant 10 and the bone forms a distal end 26 that abuts against an external disassembly / removal tool. The external disassembly / removal tool can abut against the distal end 26 formed by the pull-out force-bearing portion 22 while simultaneously fitting the twisting force-bearing portion 23. To ensure that the external disassembly / removal tool can fully abut against the distal end 26 to apply pushing force, the depth of the slot in the external disassembly / removal tool for fitting the twisting force-bearing portion 23 is greater than the height of the twisting force-bearing portion 23 protruding from the pull-out force-bearing portion 22.

[0095] Thus, personnel can implant the implant 10 into the bone using external disassembly tools in the following manner: First, using the external disassembly tools to hold the holding part 24, the bone marker 100 is carried to a position where the end of the implant 10 points towards the bone. Then, using the external disassembly tools to hold the distal end 26 formed by any one of the pulling force part 22, the limiting part 21, or the twisting force part 23, and apply pushing force to the distal end 26 to insert the implant tip 11 into the bone. Subsequently, using the external disassembly tools to apply rotational torque to the twisting force part 23, the implant rod 12 is screwed into the bone in a spiral motion until the implant 10 is fully implanted into the bone and the limiting part 21 abuts against the bone.

[0096] Optionally, the outer peripheral wall of the implant 10 is also provided with a chip removal groove 14, which extends from the end of the implant 10 that is relatively close to the external connector 20 along the length direction of the implant 10 to the end of the implant 10 that is relatively far away from the external connector 20.

[0097] It is understood that in other embodiments, the screwing protrusion 231 can also be provided on the outer peripheral wall of the holding part 24, that is, the holding part 24 can be provided as a polygonal prism structure, thereby forming a screwing force-bearing part 23 in the holding part 24. After the external disassembly tool extends into the holding space 25, it connects with the screwing protrusion 231 and forms an anti-rotation fixed fit. At this time, there will be no rotation around the axis of the implant 10 between the external disassembly tool and the holding part 24. A thrust can be applied to the screwing protrusion 231 to generate a rotational torque centered on the axis of the implant 10.

[0098] The present invention also provides a marker removal and installation tool 200, which is specifically used for implanting the bone marker 100 provided by the present invention into the bone and removing it from the bone. Personnel only need to use the marker removal and installation tool 200 to apply different forms of force to the bone marker 100 to implant the bone marker 100 into the bone or to remove the bone marker 100 that has been implanted into the bone, without the assistance of other personnel. Before implanting the bone marker 100 into the bone, there is no need to drill holes in the bone to be implanted, nor is it necessary to use other tools and equipment.

[0099] Please see Figure 4 , Figures 7-8 The marker removal and installation tool 200 includes a handheld component 90 and a pressing component 40. The handheld component 90 is for manual and fixed gripping by a person. The pressing component 40 is fixedly disposed relative to the handheld component 90 and is cylindrical or cylindrical, including a supporting end 41 facing the bone. The supporting end 41 is formed by the end face of the pressing component 40 that is relatively close to the bone and is used to apply pushing force to the distal end 26 of the bone marker 100, thereby implanting the implant 10 of the bone marker 100 into the bone. When a person holds the handheld component 90, the supporting end 41 is located at the end of the pressing component 40 that is relatively close to the bone and the bone marker 100, and can abut against the distal end 26 of the bone marker 100. The abutment end 41 can be circular, polygonal, annular, or a polygonal annular end face. When the abutment end 41 abuts against the distal end 26 of the bone marker 100, the axial extension direction of the abutment end 41 is consistent with the axial direction of the bone marker 100. More specifically, when the abutment end 41 abuts against the distal end 26 of the bone marker 100, the axis of the abutment end 41 coincides with the axis of the implant 10.

[0100] It should be noted that the pressing component 40 applies pushing force to the distal end 26 of the bone marker component 100 by the person applying force directly to the hand-held component 90, and then the force is transmitted from the hand-held component 90 to the pressing component 40. This avoids the person applying force directly to the pressing component 40 manually, thereby preventing the person from damaging the muscle tissue.

[0101] The marker removal and installation tool 200 also includes a gripper 50 and a control member 60. The gripper 50 is movably connected to the pressing member 40. The gripper 50 includes a gripping part 51 and a control force receiving part 52 integrally connected, with the gripping part 51 and the control force receiving part 52 respectively formed at both ends of the gripper 50. The control member 60 is movably disposed relative to the handheld member 90, and a movable connection is formed between the control member 60 and the control force receiving part 52. The control member 60 can drive the gripper 50 to move relative to the pressing member 40, thereby driving the gripping part 51 to move. The position of the control member 60 relative to the handheld member 90 includes a first control position and a second control position.

[0102] In some embodiments, when the control member 60 moves to the first control position, the gripping part 51 is driven by the control member 60 to approach the abutment end 41 of the press-fitting member 40 until the control member 60 reaches the first control position. At this time, the gripping part 51 and the abutment end 41 are arranged opposite each other in the axial direction of the abutment end 41, and a gap space is formed between the gripping part 51 and the abutment end 41. At this time, the gripping part 51 can be orthogonally projected onto the abutment end 41 along the axial direction of the abutment end 41. When the control member 60 moves to the second control position, the gripping part 51 is driven by the control member 60 to move away from the abutment end 41 until the control member 60 reaches the second control position. At this time, the gripping part 51 is not opposite to the abutment end 41, and the gripping part 51 cannot be orthogonally projected onto the abutment end 41 along the axial direction of the abutment end 41.

[0103] Specifically, in Figure 4 and Figure 5 In the marker removal and installation tool 200 shown, the gripper 50 is located on the outer periphery of the pressing member 40, and the control member 60 is in a first control position. In the axial direction of the pressing member 40 (the direction of extension of the axis of the supporting end 41), one end of the gripper 50 extends to the axially outer region opposite the supporting end 41 and forms a gripping portion 51. The gripping portion 51 can form an orthographic projection on the supporting end 41 along the axial direction of the supporting end 41. The other end of the gripper 50 is connected to the control member 60. Figure 7 The marker removal and installation tool 200 shown has the control member 60 in the second control position. In the axial direction of the pressing member 40, the gripper 50 is located on the lateral outside of the pressing member 40. However, compared with the control member 60 in the first control position, the angle between the gripper 50 and the axis of the pressing member 40 changes. At this time, the gripping part 51 moves to the radial outside of the pressing member 40. At this time, the gripping part 51 will not form a positive projection on the abutting end 41 along the axial direction of the abutting end 41.

[0104] It is worth noting that when the control member 60 is in the first control position, the gripping part 51 reaches the axially outer region directly opposite the abutment end 41, thereby forming an orthographic projection on the abutment end 41 along the axial direction of the abutment end 41. This is not mandatory. In other embodiments, when the control member 60 is in the first control position, the gripping part 51 does not necessarily need to form an orthographic projection on the abutment end 41 along the axial direction of the abutment end 41, as long as the following limiting condition is met: the gripping part 51 is located outside the plane containing the abutment end 41, that is... Figure 5 From the perspective of the left side of the plane where the supporting end 41 is located, and the distance from the gripping part 51 to the axis of the supporting end 41 is less than the distance from the gripping part 51 to the axis of the supporting end 41 when the control member 60 is in the second control position.

[0105] Marker removal and installation tool 200 is in Figure 4 or Figure 5 In the indicated state, the pulling force receiving part 22 can be located in the gap space between the gripping part 51 and the supporting end 41. The gripping part 51 can support the end of the pulling force receiving part 22 facing the bone, that is, the gripping part 51 can abut against the pulling force bearing surface. As the user applies a force away from the bone to the handpiece 90, the gripping part 51 is driven to apply a force away from the bone and the implant 10 to the pulling force bearing surface until the implant 10 is removed from the bone; when the marker removal tool 200 is in Figure 7 In the indicated state, the user can align the abutment end 41 with the distal end 26 pointing towards the skeletal marker 100, thus preparing to grasp the skeletal marker 100. Next, simply switching the control member 60 to the first control position will cause the grasping member 50 to grasp the skeletal marker 100. Alternatively, in... Figure 7 In the indicated state, after the implant 10 is implanted into the bone, the user can separate the gripping part 51 from the pulling force part 22 to release the gripping part 50 from the bone marker 100.

[0106] Optionally, the press-fit component 40 and the handheld component 90 are coaxially fixedly connected.

[0107] Optionally, a rod is provided between the pressing component 40 and the handheld component 90, with both ends of the rod fixedly connected to the pressing component 40 and the handheld component 90, respectively. This increases the distance between the handheld component 90 and the pressing component 40, thereby increasing the distance between the user's hand and the bone marker 100, muscle tissue, and bone, preventing the user's hand from accidentally touching muscle tissue or bone. Preferably, the rod, pressing component 40, and handheld component 90 are coaxially fixedly connected.

[0108] Optionally, the gripper 50 is rotatably connected to the pressing member 40. The gripper 50 also includes a hinge 53, which is fixedly connected to the gripping member 51 and the control force receiving member 52 as a whole. The hinge 53 is located between the gripping member 51 and the control force receiving member 52. The control member 60 moves relative to the handheld member 90 and the aforementioned rod body, adjusting and driving the control force receiving member 52, so that the gripper 50 rotates about the hinge 53 as a fulcrum, thereby changing the angle between the gripper 50 and the axis of the supporting end 41. The control member 60 drives the control force receiving member 52 away from the axis of the supporting end 41, causing the gripping member 51 to rotate. Figures 5-6 The rotation in the counterclockwise direction from the perspective shown approaches the axis of the supporting end 41, or the control member 60 drives the force-receiving part 52 to approach the axis of the supporting end 41, thereby driving the gripping part 51 to... Figures 5-6 The angle shown rotates clockwise away from the axis of the supporting end 41.

[0109] Optional, please refer to Figure 4 , Figure 5 and Figure 6 The marking tool 200 also includes a mounting ring 70, which is coaxially and fixedly connected to the pressing part 40 and the supporting end 41, and the hinge part 53 is hinged to the outer peripheral wall of the mounting ring 70.

[0110] Optional, please refer to Figure 4 , Figures 5-6 , Figure 7 There are multiple gripping elements 50, which are arranged in pairs along the circumference of the supporting end 41. The ends of the multiple gripping parts 51 are arranged around the axis of the supporting end 41. When the control member 60 moves to the first control position, the ends of the multiple gripping parts 51 are closest to the axis of the supporting end 41. When the control member 60 moves to the second control position, the ends of the multiple gripping parts 51 are farthest from the axis of the supporting end 41. Thus, the control member 60 can drive the multiple gripping elements 50 to move synchronously close or open. Figure 4 In the indicated state, the control element 60 is in the first control position. Figure 7 In the state shown, the control unit 60 is in the second control position.

[0111] Optionally, the end of the gripping part 51 is bent along the axial direction near the abutting end 41 to form a pulling force application part 511. When the control member 60 is in the first control position, the control member 60 drives the pulling force application part 511 to move toward the abutting end 41 at intervals.

[0112] In some embodiments, the control member 60 includes a drive element 61, a first elastic element 62, and a second elastic element 63. A rod fixedly disposed between the pressing member 40 and the handheld member 90 forms a control guide 80. The drive element 61 slides along the length of the control guide 80, thus allowing the drive element 61 to slide closer to the handheld member 90 or closer to the pressing member 40 along the length of the control guide 80. One end of the first elastic element 62 is connected to the gripping member 50, and the other end is fixed relative to the pressing member 40. One end of the second elastic element 63 is connected to the drive element 61, and the other end is fixed relative to the pressing member 40. The first control position and the second control position of the control member 60 are respectively the positions of the two drive elements 61 relative to the control guide 80. When the drive element 61 slides away from the pressing member 40 and closer to the handheld member 90, the drive element 61 moves away from the second control position and closer to the first control position. When the drive element 61 slides closer to the pressing member 40, the drive element 61 moves away from the second control position and closer to the first control position.

[0113] Specifically, the drive element 61 includes a trigger part 611, a sliding sleeve 612, and an expanding tube 613 connected as one unit. A control guide 80 is fitted onto the sliding sleeve 612 and the expanding tube 613. The expanding tube 613 is connected to the end of the sliding sleeve 612 that is relatively close to the bone and bone marker 100, and the inner diameter of the expanding tube 613 tends to increase in the direction away from the sliding sleeve 612 and the handheld part 90. A drive ramp 6131 is formed on the inner wall of the expanding tube 613. The distance from the drive ramp 6131 to the axis of the control guide 80 tends to increase in the direction close to the bone and bone marker 100. The axis of the abutment end 41 has an angle with the drive ramp 6131 towards the bone marker 100. The control force receiving part 52 extends beyond the side of the control guide 80. The end of the control force receiving part 52 that is relatively far from the gripping part 51 extends into the expanding tube 613 and forms a slidable abutment with the drive ramp 6131. The trigger part 611 is fixed to the end of the sliding sleeve 612 that is relatively far away from the expansion tube 613, and the trigger part 611 protrudes from the outer peripheral wall of the sliding sleeve 612. Personnel can manually apply force to the trigger part 611 to move the expansion tube 613 closer to the bone and bone marker 100, or away from the bone and bone marker 100.

[0114] The first elastic element 62 has the function of driving the gripping element 50 to... Figures 5-6The counter-clockwise rotation trend shown in the diagram, that is, under the elastic force of the first elastic element 62, the gripping part 51 tends to rotate closer to the axis of the press-fit part 40, while the control force-receiving part 52 tends to rotate away from the control guide 80. Under the elastic force of the first elastic element 62, the control force-receiving part 52 remains in contact with the drive inclined surface 6131. ​​As the drive element 61 moves towards the first control position, the gripping part 51 will rotate along... Figure 5 From a visual perspective, the axis rotates counterclockwise relative to the abutment end 41 until it is spaced towards the abutment end 41. As the drive element 61 moves to the second control position, the control force receiving part 52 is driven by the drive inclined surface 6131 to rotate towards the axis of the control guide member 80. At this time, the gripping part 51 moves along... Figure 5 Rotate clockwise from the perspective of the viewpoint, thereby moving away from the axial outer region directly opposite the abutment end 41.

[0115] See Figure 7 The second elastic element 63 is in a compressed state. The second elastic element 63 has elastic potential energy that can drive the drive element 61 away from the pressing member 40 and towards the first operating position. Therefore, the elastic force of the second elastic element 63 has a tendency to rotate the gripping part 51 towards the abutting end 41 at intervals. When the operator does not apply pressure to the second elastic element 63 through the trigger part 611, the second elastic element 63 can drive the drive element 61 to the first operating position and cause the gripping part 51 to abut against the pulling force bearing surface of the pulling force receiving part 22. Finally, the marking removal tool 200 is in the following state: Figure 4 As shown. In Figure 4 In the indicated state, the operator only needs to apply a pushing force to the trigger 611, with the direction of action close to the bone and the pressing component 40, to overcome the elastic force of the second elastic element 63, causing the drive element 61 to move closer to the pressing component 40 and the bone, thereby further compressing the second elastic element 63. Finally, the marker removal and installation tool 200 can be switched back to... Figure 7 The state shown.

[0116] Optionally, the second elastic element 63 and the sliding sleeve 612 are both slidably sleeved on the control guide 80 through a clearance fit. Preferably, the second elastic element 63 is coaxially arranged with the control guide 80.

[0117] Optionally, the other end of the first elastic element 62 is connected to the mounting ring 70, which has a rotation limiting structure to restrict the angular range of rotation of the gripper 50 relative to the mounting ring 70. Thus, the gripper 50 has two rotation limit positions. When the gripper 50 is in one of these rotation limit positions, the gripping portion 51 is spaced towards the abutment end 41; when the gripper 50 is in the other rotation limit position, the gripping portion 51 is relatively far away from the abutment end 41. Of course, the rotation limiting structure can also be fixedly provided on the press-fit member 40. The first elastic element 62 has the elastic potential energy to drive the gripping portion 51 to rotate to an outer region axially opposite the abutment end 41, so that the gripping portion 51 is spaced towards the abutment end 41.

[0118] Preferably, the first elastic element 62 is a torsion spring, and both the hinge portion 53 and the mounting ring 70 are provided with a rotating shaft. The first elastic element 62 is sleeved on the rotating shaft between the hinge portion 53 and the mounting ring 70.

[0119] Optionally, the press-fitting component 40 and the control guide component 80 form a limiting step, wherein the press-fitting component 40 protrudes relative to the outer peripheral wall of the control guide component 80, and the control guide component 80 is fitted onto the mounting ring 70 at the step angle corresponding to the limiting step. One end of the mounting ring 70 abuts against the end of the press-fitting component 40 away from the holding end 41, and the end of the second elastic element 63 that is relatively far away from the driving element 61 abuts against the other end of the mounting ring 70. Preferably, the second elastic element 63 is a telescopic spring.

[0120] Optional, please refer to Figure 8 In some embodiments, the handheld component 90 has a sliding groove 91 that extends through one end of the handheld component 90 relative to the pressing member 40, forming an opening. The extending direction of the sliding groove 91 is consistent with the length direction of the control guide 80. When the drive element 61 is in the first control position, the trigger part 611 is located in the sliding groove 91 and protrudes relative to the outer peripheral wall of the handheld component 90. As the user applies a pushing force to the trigger part 611 with a direction of action close to the pressing member 40, the trigger part is driven away from the sliding groove 91, and the drive element 61 moves to the second control position.

[0121] In some embodiments, the marker removal and installation tool 200 further includes an external pressure receiving part, which is fixedly disposed relative to the pressing member 40 in a direction perpendicular to the supporting end 41. A person can insert at least a portion of the implant 10 into the bone by applying pressure to the external pressure receiving part. When the external pressure receiving part is under pressure, it applies pressure to the pressing member 40, which in turn applies pressure indirectly to the distal end 26 of the bone marker 100 through the supporting end 41. The person can apply pressure to the external pressure receiving part by repeatedly tapping or by slowly applying pressure.

[0122] Specifically, please refer to Figure 4 , Figure 7 and Figure 8 The end of the handheld component 90 that is furthest from the pressing component 40 can be a plane parallel to the supporting end 41, and the external pressure receiving part is the end face of the handheld component 90 furthest from the pressing component 40. A person can repeatedly tap the end of the handheld component 90 furthest from the bone to drive at least a portion of the implant 10 into the bone. The two ends of the control guide 80 are fixedly connected to the pressing component 40 and the handheld component 90, thus maintaining a relatively fixed relationship between the external pressure receiving part and the supporting end 41. It is understood that in other embodiments, the external pressure receiving part can also be located at other positions on the marker removal tool 200.

[0123] The press-fit component 40 also includes a screw-fitting portion 42. In some embodiments, the screw-fitting portion 42 is a screw-fitting sleeve for fitting the screw-fitting force-bearing portion 23. The end portion of the screw-fitting portion 42 forms a holding end 41 for abutting the distal end 26 of the bone marker 100. The end portion of the screw-fitting portion 42 refers to the farthest end of the press-fit component 40 relative to the handheld component 90, which is positioned towards the bone when the bone marker 100 is implanted into the bone. When the control component 60 is in the first control position, the gripping portion 51 is spaced towards the end portion of the screw-fitting portion 42. The screw-fitting sleeve has a screw-fitting prism hole 421 for the screw-fitting force-bearing portion 23 to be placed therein, and the axis of the screw-fitting prism hole 421 coincides with the axis of the press-fit component 40. The inner peripheral wall of the screw-fitting prism hole 421 is adapted to the outer peripheral wall of the screw-fitting force-bearing part 23, and a screw-fitting edge is formed. The screw-fitting edge is used to avoid the screw-fitting protrusion 231 adapted to the screw-fitting force-bearing part 23. Thus, the operator can manually rotate the marker assembly / disassembly tool 200 to rotate it around the axis of the pressing part 40, thereby applying pushing force to the screw-fitting protrusion 231 through the screw-fitting edge, ultimately generating a rotational torque that drives the bone marker 100 to spiral.

[0124] It is understood that the form of the screw-fitting part 42 is not limited to a screw-fitting sleeve. In other embodiments, the screw-fitting part 42 can also be a screw-fitting wrench that clamps the outer peripheral wall of the screw-fitting force-bearing part 23, or the screw-fitting part 42 can also be a polygonal prism structure that includes protruding ridges. In this case, the screw-fitting part 42 can also apply a rotational torque to the bone marker 100 to cause the implant 10 to be spirally implanted into the bone by extending into the polygonal prism fitting hole of the screw-fitting force-bearing part 23 and by adapting the protruding ridges to the screw-fitting edge of the screw-fitting force-bearing part 23.

[0125] The present invention also provides a complete set of skeletal markers 100, including the skeletal markers 100 provided by the present invention and the marker assembly / disassembly tool 200 provided by the present invention.

[0126] The technical features of the above-described 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.

[0127] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A tool for disassembling and assembling markers, characterized in that, It includes a pressing component (40), a gripping component (50), and a control component (60). The pressing component (40) includes a supporting end (41). The gripping component (50) is movably connected to the pressing component (40). The gripping component (50) includes a gripping part (51). The control member (60) is connected to the gripping member (50) and has a first control position that moves the gripping part (51) relatively close to the axis of the supporting end (41) and a second control position that moves the gripping part (51) relatively away from the axis of the supporting end (41). The press-fit component (40) further includes a screw-fit part (42), the end of which forms the abutment end (41); The marking tool also includes a handheld component (90), which is fixedly disposed relative to the pressing component (40); The control element (60) includes a drive element (61), which is movably connected to the gripper (50) and is slidably disposed relative to the press-fitting element (40) along a preset drive trajectory.

2. The tool for removing and assembling markers according to claim 1, characterized in that, When the control member (60) is in the first control position, the gripping portion (51) is spaced apart from the abutting end (41); and / or, When the control member (60) is in the first control position, the distance from the gripping part (51) to the abutment end (41) in the axial direction reaches its maximum value.

3. The tool for removing and assembling markers according to claim 1, characterized in that, The drive element (61) is configured to slide close to the press-fit member (40) to reach the second control position, and to slide away from the press-fit member (40) to reach the first control position.

4. The marking component removal and assembly tool according to claim 3, characterized in that, The control element (60) further includes a second elastic element (63), one end of which is connected to the drive element (61) and the other end is connected to the press-fitting element (40). The second elastic element (63) has elastic potential energy that can drive the drive element (61) away from the second control position and slide closer to the first control position.

5. The marking component removal and assembly tool according to claim 3, characterized in that, The marker removal and installation tool further includes a control guide (80), the pressing component (40) is fixedly connected to one end of the control guide (80), and the driving element (61) slides in cooperation with the control guide (80) along its length; and / or, The handheld component (90) is fixedly connected to the other end of the control guide (80). The handheld component (90) has a sliding groove (91) that passes through the end of the handheld component (90) near the bone marker. The driving element (61) includes a trigger part (611), which is located in the sliding groove (91) and protrudes from the outer peripheral wall of the handheld component (90).

6. The tool for removing and assembling markers according to claim 1, characterized in that, The gripping portion (51) is bent at its axial center near the abutment end (41) to form a pulling force application portion (511); and / or, The number of gripping elements (50) is multiple, and the control element (60) connects multiple gripping elements (50). The multiple gripping elements (50) are arranged at intervals along the circumferential direction of the supporting end (41).

7. The tool for removing and assembling markers according to claim 1, characterized in that, The gripper (50) is rotatably disposed on the periphery of the press-fitting member (40). The gripper (50) also includes a control force receiving part (52), which is integrally connected with the gripping part (51). The control member (60) is connected to the control force receiving part (52) and is configured to drive the gripper (50) to rotate relative to the press-fitting member (40) to change the axial angle between the gripper (50) and the abutment end (41).

8. The tool for removing and assembling markers according to claim 7, characterized in that, The gripper (50) further includes a hinge (53), the force-receiving part (52) and the gripping part (51) are respectively formed at both ends of the gripper (50), the hinge (53) is located between the two ends of the gripper (50) and is rotatably connected to the press-fitting part (40); and / or, The control element (60) includes a first elastic element (62), one end of which is connected to the gripping element (50) and the other end is connected to the pressing element (40). The first elastic element (62) has elastic potential energy that drives the gripping part (51) to rotate closer to the axis of the abutment end (41).

9. The marking component removal and assembly tool according to claim 7, characterized in that, The driving element (61) is slidably disposed in the axial direction of the supporting end (41). The driving element (61) includes a driving inclined surface (6131). In the direction close to the press-fitting member (40), the distance between the driving inclined surface (6131) and the axis of the supporting end (41) tends to increase. The control force receiving part (52) slides against the driving inclined surface (6131).

10. The tool for removing and assembling markers according to claim 1, characterized in that, The screw-fitting part (42) further includes a screw-fitting edge, which is located outside the axis of the abutment end (41) and extends axially in the abutment end (41).

11. The marking tool according to claim 10, characterized in that, The screw-fitting part (42) is a screw-fitting sleeve. The end of the screw-fitting sleeve facing the bone forms the supporting end (41), and the screw-fitting sleeve has a screw-fitting prism hole (421). The screw-fitting edge is the edge of the inner peripheral wall of the screw-fitting prism hole (421).

12. The tool for removing and assembling markers according to claim 1, characterized in that, The marking tool also includes an external pressure receiving part, which is fixedly arranged relative to the pressing part (40) in the axial direction of the supporting end (41).

Images