WO2022193904A1 - 膝关节置换智能导航导板 - Google Patents

膝关节置换智能导航导板 Download PDF

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Publication number
WO2022193904A1
WO2022193904A1 PCT/CN2022/076971 CN2022076971W WO2022193904A1 WO 2022193904 A1 WO2022193904 A1 WO 2022193904A1 CN 2022076971 W CN2022076971 W CN 2022076971W WO 2022193904 A1 WO2022193904 A1 WO 2022193904A1
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WO
WIPO (PCT)
Prior art keywords
fitting surface
hole
intelligent navigation
installation
knee joint
Prior art date
Application number
PCT/CN2022/076971
Other languages
English (en)
French (fr)
Inventor
张逸凌
刘星宇
Original Assignee
北京长木谷医疗科技有限公司
张逸凌
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 北京长木谷医疗科技有限公司, 张逸凌 filed Critical 北京长木谷医疗科技有限公司
Publication of WO2022193904A1 publication Critical patent/WO2022193904A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices

Definitions

  • the present disclosure relates to the field of medical equipment, and in particular, to an intelligent navigation guide for knee joint replacement.
  • Knee replacement osteotomy guide is a surgical aid. Using the guide, there is no need for pulp opening, reducing surgical trauma, simplifying the tools used in surgery, and improving surgical efficiency. At the same time, it shortens the learning curve of doctors and ensures the efficiency of surgery. Moreover, the guide plate is customized according to the bone of the patient, which greatly improves the accuracy of the operation.
  • the guide plates are designed as a whole and are 3D printed using nylon material, resin material or polylactic acid material.
  • the materials used for the production of guide plates by 3D printing need to meet multiple requirements such as biological and mechanical properties and are suitable for the 3D printing process, which will make the selection range very small, and it is difficult to meet the various needs of guide plate production. That is, the overall design and overall 3D printing of the matching guide plate has at least the following shortcomings:
  • the overall design and printing of the guide plate requires the entire product to be processed during the 3D printing process. Most of the 3D printing processes use hot-melt or light-curing methods. Long structure) is not friendly, because the greater the thickness and the longer the length, the greater the internal stress of the workpiece, which will cause the deformation and distortion of the overall structure of the 3D printed workpiece, and the greater the shrinkage rate, which will cause greater dimensional errors.
  • the guide plate may be deformed and the accuracy will be reduced, and the intraoperative positioning of the guide plate will be reduced.
  • the present disclosure aims to solve at least one of the aforementioned technical problems.
  • the present disclosure proposes an intelligent navigation guide for knee joint replacement.
  • the main frame can be prepared in a conventional way, and then the 3D printed fitting surface column and the main frame can be assembled,
  • the structural strength of the knee joint replacement intelligent navigation guide can be greatly improved, the structural design can be optimized, the printing consumables can be greatly reduced, the structural design of the knee joint replacement intelligent navigation guide can be optimized, the redundant parts can be removed, and the knee joint replacement intelligent navigation guide can be structured. Simple, expose the surgical field as much as possible.
  • Embodiments of the present disclosure provide an intelligent navigation guide for knee replacement, including:
  • the main frame is provided with mounting holes;
  • the fitting surface column is detachably installed in the mounting hole, and the fitting surface column is formed by 3D printing.
  • the knee joint replacement intelligent navigation guide provided by the embodiment of the present disclosure, by using 3D printing technology to form a fitting surface column, can use a conventional method to prepare the main frame, and then assemble the 3D printed fitting surface column and the main frame, which can greatly The structural strength of the knee joint replacement intelligent navigation guide plate is improved, the structural design is optimized, and redundant parts are removed, so that the knee joint replacement intelligent navigation guide plate has a simple structure and exposes the surgical field as much as possible.
  • the preparation of the fitting surface column is realized by 3D printing technology, the printing consumables can be greatly reduced and its economy can be improved.
  • the main frame is made of metal material, it can be ensured that the main frame can adapt to various sterilization methods, the structure is more stable, and the structural accuracy error caused by sterilization can be reduced.
  • the main frame includes a pressing arm and an abutting table, and the mounting hole includes a first mounting hole and a second mounting hole;
  • the first installation hole is provided at the first end of the pressing crank arm, and the second end of the pressing crank arm is connected to the abutment table, and a side of the abutment table facing the first installation hole is formed. the side is provided with the second mounting hole;
  • the fitting surface column includes a first fitting surface column and a second fitting surface column, between the first fitting surface column and the first installation hole, and the second fitting surface column and the second fitting surface column.
  • the second mounting holes are adapted to be connected by a snap connection structure.
  • the pressing arm is curved, the first end of the pressing arm extends from the left in the horizontal direction, and the second end of the pressing arm is downward in the vertical direction extension settings;
  • the opening of the first installation hole is open toward the bending center of the pressing arm, the axial direction of the first installation hole is a vertical direction, and the first fitting surface column is detachably installed in the first installation hole.
  • the second end of the pressing crank arm is interconnected with an abutment platform, the abutment platform being configured to mount the second fitting surface column;
  • a second mounting hole is formed on the abutting table, and the second fitting surface upright is detachably mounted in the second mounting hole.
  • the snap-fit structure includes a first snap-block and a second snap-fit that are snap-fitted with each other,
  • the first clamping block is arranged at one of the first fitting surface column and the first installation hole, and the second clamping block is arranged at the first fitting surface column and the first installation hole another of the;
  • the first clamping block is arranged on one of the second fitting surface column and the second installation hole, and the second clamping block is arranged at the second fitting surface column and the second installation hole the other one.
  • a first deformation portion suitable for deformation is formed on a side wall of the hole of the first installation hole, and the first clamping block or the second clamping block is disposed on the first deformation portion. one end of the end face close to the first mounting hole on the part;
  • a second deformation part suitable for deformation is formed on the side wall of the hole of the second installation hole, and the first block or the second block is arranged on the second deformation part and close to the second installation One end of the end face of the hole.
  • a first installation head is formed at one end of the first fitting surface column, and the first clamping block or the second clamping block is formed on a side wall of the first installation head;
  • a second installation head is formed at one end of the second fitting surface column, and the first clamping block or the second clamping block is formed on the side wall of the second installation head.
  • the first installation hole is one of a regular hole and a special-shaped hole, and the shape of the first installation head is adapted to the shape of the first installation hole;
  • the second mounting hole is the other of a regular hole and a special-shaped hole, and the shape of the second mounting head matches the shape of the second mounting hole.
  • a first nail-setting hole penetrating the first installation hole is formed in the first installation hole.
  • a second nail setting hole extending in the axial direction of the second installation hole and penetrating the thickness direction of the pressing crank arm is formed at the second end of the pressing crank arm.
  • a section through the thickness direction of the pressing crank arm is formed on the pressing crank arm Bone groove.
  • a grabbing structure for increasing friction is formed on the surface of the pressing arm away from the bending center and/or the surface of the abutment platform away from the first installation hole.
  • the knee joint replacement intelligent navigation guide provided by the embodiment of the present disclosure, by using 3D printing technology to form a fitting surface column, can use a conventional method to prepare the main frame, and then assemble the 3D printed fitting surface column and the main frame, which can greatly The structural strength of the knee joint replacement intelligent navigation guide plate is improved, the structural design is optimized, and redundant parts are removed, so that the knee joint replacement intelligent navigation guide plate has a simple structure and exposes the surgical field as much as possible.
  • the preparation of the fitting surface column is realized by the 3D printing technology, the printing consumables can be greatly reduced and the economy thereof can be improved.
  • the main frame is made of metal material, it can be ensured that the main frame can adapt to various sterilization methods, the structure is more stable, and the structural accuracy error caused by sterilization can be reduced.
  • FIG. 1 is a schematic structural diagram of an angle of an intelligent navigation guide for knee replacement provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another angle of the intelligent navigation guide for knee replacement provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of another angle of the intelligent navigation guide for knee replacement provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic exploded view of an intelligent navigation guide for knee joint replacement provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic side view of a main frame provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of an angle of a main frame provided by an embodiment of the present disclosure.
  • FIG. 7 is another perspective schematic structural diagram of a main frame provided by an embodiment of the present disclosure.
  • FIG. 8 is a reference diagram of an angle of use of the intelligent navigation guide for knee replacement provided by an embodiment of the present disclosure
  • FIG. 9 is a reference diagram of another angle of use of the intelligent navigation guide for knee joint replacement according to an embodiment of the present disclosure.
  • 100 main frame; 102, press crank arm; 104, abutting table; 106, first mounting hole; 108, second mounting hole; 110, first fitting surface column; 112, second fitting surface column; 114 116, the second block; 118, the first deformation part; 120, the second deformation part; 122, the first installation head; 124, the second installation head; 126, the first nail hole; 128 , the second screw hole; 130, the osteotomy slot; 132, the grasping structure.
  • the terms “center”, “portrait”, “horizontal”, “top”, “bottom”, “front”, “rear”, “left”, “right”, “vertical” , “horizontal”, “top”, “bottom”, “inside”, “outside”, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present disclosure and simplification It is described, rather than indicated or implied, that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting embodiments of the present disclosure. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and should not be construed to indicate or imply relative importance.
  • connection and “connected” should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; It is a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in specific situations.
  • the first feature "on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features through the middle indirect contact with the media.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • an embodiment of the present disclosure provides an intelligent navigation guide for knee joint replacement, including a main frame 100 and a fitting surface column; the main frame 100 is provided with an installation hole, and the fitting surface column is detachably installed For the mounting hole, the fitting surface column is formed by 3D printing.
  • the knee joint replacement intelligent navigation guide provided by the embodiment of the present disclosure by using the 3D printing technology to form the fitting surface column, the main frame 100 can be prepared in a conventional way, and then the 3D printing
  • the assembly of the formed fitting surface column and the main frame 100 can greatly improve the structural strength of the knee joint replacement intelligent navigation guide, optimize the structural design, remove redundant parts, and make the knee joint replacement intelligent navigation guide as simple in structure as possible. Expose the surgical field.
  • the preparation of the fitting surface column is realized by 3D printing technology, the printing consumables can be greatly reduced and its economy can be improved.
  • the main frame 100 is made of metal material, it can be ensured that the main frame 100 can adapt to various sterilization methods, the structure is more stable, and the structural accuracy error caused by sterilization can be reduced.
  • the intelligent navigation guide for knee joint replacement mainly includes a main frame 100 and a fitting surface column.
  • the main frame 100 includes a pressing arm 102 and an abutment table 104; the fitting surface column includes a first fitting surface column 110 and a second fitting surface column 112; the installation hole includes a first installation hole 106 and a second installation hole 108.
  • the function of the pressing arm 102 is to fix the first fitting surface column 110, and at the same time, the knee joint replacement intelligent navigation guide can be pressed to the patient's patient position.
  • the pressing arm 102 is substantially L-shaped, that is, as shown in FIG. 5 , in the embodiment of the present disclosure, the pressing arm 102 is in a curved shape.
  • the first end of the pressing crank arm 102 is extended to the left in the horizontal direction, and the second end of the pressing crank arm 102 is extended downward in the vertical direction, so that a curved pressing curve can be formed. arm 102.
  • a first installation hole 106 is provided at the first end of the pressing crank arm 102.
  • the opening of the first installation hole 106 is open toward the bending center of the pressing crank arm 102, that is, as shown in FIG. 1 to FIG. 3,
  • the axial direction of the first mounting hole 106 is a vertical direction, and the first fitting surface upright 110 is detachably mounted in the first mounting hole 106 .
  • the second end of the pressing arm 102 is connected to the abutment table 104 , wherein the function of the abutment table 104 is to install the second fitting surface column 112 , so that the second mounting hole 108 is formed on the abutment table 104 , the opening direction of the second installation hole 108 is rightward in the horizontal direction as shown in FIG. 1 to FIG. 3 , and the second fitting surface column 112 is detachably installed in the second installation hole 108 .
  • both the first mounting hole 106 and the second mounting hole 108 are blind holes.
  • there are two first installation holes 106 and the two first installation holes 106 are respectively provided on both sides of the first end of the pressing crank arm 102 .
  • the main frame 100 can be manufactured by using a metal material using a conventional manufacturing method, that is, the main frame 100 can be produced in a standardized manner using a metal material.
  • the production efficiency of the main frame 100 can be improved, and the overall production cost of the intelligent navigation guide for knee joint replacement can be reduced.
  • the first fitting surface column 110 and/or the second fitting surface column 112 are formed by 3D printing.
  • the first fitting surface is formed by 3D printing technology.
  • the upright post 110 and/or the upright post 112 of the second fitting surface are prepared and formed, and it can be understood that the modular installation of the intelligent navigation guide for knee joint replacement can be realized by this, that is, the main frame 100 made of metal material and the The assembled installation of the first fitting surface column 110 and/or the second fitting surface column 112 prepared by printing technology can greatly reduce the printing consumables of the intelligent navigation guide for knee replacement and improve its economy.
  • first fitting surface uprights 110 and the second fitting surface uprights 112 are formed by 3D printing technology.
  • first fitting surface upright 110 or the second fitting surface upright 112 can also be separately prepared and formed by 3D printing.
  • the first fitting surface upright post 110 and the first installation hole 106 and the second fitting surface upright post 112 and the second installation hole 108 are adapted to be connected by a snap-fit structure.
  • the first fitting surface upright post 110 and the first installation hole 106 and the second fitting surface upright post 112 and the second installation hole 108 are connected by a snap-fit structure, which can elevate the first fitting surface upright post 110 to the first installation.
  • the hole 106 and the convenience of connection between the second fitting surface post 112 and the second mounting hole 108 are connected by a snap-fit structure, which can elevate the first fitting surface upright post 110 to the first installation.
  • the snap-fit structure includes a first snap block 114 and a second snap block 116 that are snap-fitted with each other.
  • the first clamping block 114 is disposed on one of the first fitting surface column 110 and the first installation hole 106
  • the second clamping block 116 is disposed at the other of the first fitting surface column 110 and the first installation hole 106 .
  • first clamping block 114 may be disposed on the first fitting surface column 110 , and the second clamping block 116 may be disposed in the first mounting hole 106 .
  • first clamping block 114 may be disposed in the first mounting hole 106
  • second clamping block 116 may be disposed on the first fitting surface column 110 .
  • the first locking block 114 is disposed on one of the second fitting surface column 112 and the second installation hole 108
  • the second locking block 116 is disposed on the other of the second fitting surface column 112 and the second installation hole 108 .
  • first clamping block 114 may be disposed on the second fitting surface column 112 , and the second clamping block 116 may be disposed in the second mounting hole 108 .
  • first clamping block 114 may be disposed in the second mounting hole 108
  • second clamping block 116 may be disposed on the second fitting surface column 112 .
  • the first fitting surface column 110 and the first installation hole 106 and the second fitting surface column 112 and the second installation hole 108 can be quickly disassembled and assembled Cooperate.
  • the above-mentioned clamping structure may also be a way of cooperating between the clamping block and the clamping slot.
  • the clamping block may be arranged on the first fitting surface upright 110 , and the clamping slot may be arranged in the first mounting hole 106 .
  • the clamping block may be arranged in the first installation hole 106 , and the clamping slot may be arranged on the first fitting surface column 110 .
  • the first fitting surface upright post 110 and the first mounting hole 106 and the second fitting surface upright post 112 and the second mounting hole 108 can be quickly assembled and disassembled through the snap engagement between the clamping block and the clamping slot.
  • the above-mentioned snap connection structure can also be replaced by a structure such as an elastic lock tongue, which is not exhaustive here.
  • a first deformation part 118 suitable for deformation is formed on the side wall of the first installation hole 106 , and the first clamping block 114 or the second clamping block 116 is disposed on the first deformation part 118 close to One end of the end face of the first mounting hole 106 ; the side wall of the second mounting hole 108 is formed with a second deforming portion 120 suitable for deformation, and the first blocking block 114 or the second blocking block 116 is disposed on the second deforming portion 120 one end of the end face close to the second mounting hole 108 .
  • a first deformation portion 118 is formed on the side wall of the first installation hole 106 .
  • the first deformation portion The 118 can be deformed to a certain extent so that the first fitting surface upright post 110 can be smoothly inserted into the first mounting hole 106 .
  • the first blocking block 114 or the second blocking block 116 described above is disposed at a position of the first deformation portion 118 close to the hole end face of the first mounting hole 106 .
  • a second deformation portion 120 is formed on the side wall of the second installation hole 108 .
  • the second deformation portion 120 can generate a certain amount of deformation. is deformed so that the second fitting surface upright post 112 is smoothly inserted into the second mounting hole 108 .
  • the first blocking block 114 or the second blocking block 116 described above is disposed at the position of the second deformation portion 120 close to the hole end face of the second mounting hole 108 .
  • two opening grooves penetrating the side wall of the hole of the first installation hole 106 may be formed on the side wall of the hole of the first installation hole 106 to form the first deformation portion 118 .
  • a first mounting head 122 is formed at one end of the first fitting surface column 110 , and the first clamping block 114 or the second clamping block 116 is formed on the side wall of the first mounting head 122 ;
  • a second mounting head 124 is formed at one end of the face-up column 112 , and the first clamping block 114 or the second clamping block 116 is formed on the side wall of the second mounting head 124 .
  • a first mounting head 122 is formed at the end of the first fitting surface column 110 , and a first clamping block 114 or a second clamping block 116 is formed on the side wall of the first mounting head 122 .
  • the diameter of the first mounting head 122 is slightly smaller than the diameter of the first fitting surface column 110 .
  • a second mounting head 124 is formed at the end of the second fitting surface column 112 , and the first clamping block 114 or the second clamping block 116 is formed on the side wall of the second mounting head 124 .
  • the diameter of the second mounting head 124 is slightly smaller than the diameter of the second fitting surface column 112 .
  • the first installation head 122 is used to install the first fitting surface column 110 in the first installation hole 106
  • the second installation head 124 is used to install the second fitting surface column 112 is mounted in the second mounting hole 108 .
  • the first mounting hole 106 is one of a regular hole and a special-shaped hole, the shape of the first mounting head 122 is adapted to the shape of the first mounting hole 106 ;
  • the second mounting hole 108 is a regular hole , the other of the special-shaped holes, the shape of the second mounting head 124 is adapted to the shape of the second mounting hole 108 .
  • the so-called regular holes refer to holes with regular shapes such as round holes, triangular holes, and rectangular holes
  • the so-called special-shaped holes refer to, for example, a combination of a semicircle and a triangle.
  • first mounting holes 106 there are two first mounting holes 106 , and the two first mounting holes 106 may be set as regular holes, for example, one of the first mounting holes 106 may be set as a triangular hole, and the other may be set as a triangular hole.
  • the first mounting hole 106 may be configured as a rectangular hole, and the second mounting hole 108 may be configured as a fan-shaped hole.
  • the shapes of the first mounting heads 122 are adapted to the shapes of the two first mounting holes 106, respectively, and the shapes of the second mounting heads 124 are adapted to the shapes of the second mounting holes 108.
  • the fool-proof design of the first fitting surface column 110 , the second fitting surface column 112 , the first installation hole 106 , and the second installation hole 108 can also be implemented in other ways.
  • the first fitting surface can be set in different colors.
  • a fitting surface post 110, a second fitting surface post 112 the color of the first mounting hole 106 may correspond to the color of the first fitting surface post 110, and the color of the second mounting hole 108 may correspond to the color of the second fitting surface
  • the colors of the uprights 112 correspond and so on.
  • a first nail setting hole 126 is formed in the first installation hole 106 , penetrating the first installation hole 106 ; at the second end of the pressing crank arm 102 A second nail setting hole 128 extending along the axial direction of the second mounting hole 108 and passing through the thickness direction of the pressing crank arm 102 is formed.
  • the bone screw By arranging the first screw setting hole 126 in the first installation hole 106 and setting the second screw setting hole 128 at the second end of the pressing arm 102, the bone screw (not shown in the figure) can pass through and guide the bone screw Enter the patient's position.
  • the bone screw By arranging the first nail placement hole 126 and the second nail placement hole 128 , it is convenient for the bone nail to fix the knee joint replacement intelligent navigation guide to the position of the patient.
  • the axial direction of the first nail setting hole 126 coincides with the axial direction of the first installation hole 106
  • the axial direction of the second nail setting hole 128 is parallel to the axial direction of the second installation hole 108 .
  • an osteotomy groove 130 is formed on the pressing arm 102 in the thickness direction of the pressing arm 102 .
  • the first and second ends of the pressing arm 102 are respectively formed to extend along the axial direction of the first mounting hole 106 and the second mounting hole 108 , and extend through the pressing curved Osteotomy slot 130 of arm 102 .
  • the osteotomy slot 130 By arranging the osteotomy slot 130 on the pressing arm 102, the osteotomy surface at the patient's patient position can be determined, and then the osteotomy piece can be inserted into the osteotomy slot 130 to remove the bone with a specific thickness and angle.
  • a gripping structure 132 for increasing friction is formed on the surface of the pressing arm 102 away from the bending center and/or the surface of the abutting table 104 away from the first mounting hole 106 .
  • the grabbing structure 132 By arranging the grabbing structure 132 on the surface of the pressing arm 102 away from the bending center and the surface of the abutting table 104 away from the first installation hole 106, it is convenient for medical staff to understand the knee joint replacement intelligent navigation guide in the process of operating the knee joint replacement intelligent navigation guide.
  • the grasping of the joint replacement intelligent navigation guide is more stable.
  • a coating layer for increasing the friction force can also be provided on the surface of the grabbing structure 132 .
  • the intelligent navigation guide for knee joint replacement provided by the embodiments of the present disclosure can use the 3D printing technology to form the first fitting surface column 110 and/or the second fitting surface column 112, and the main frame 100 can be prepared in a conventional manner. , and then assemble the first fitting surface column 110 and/or the second fitting surface column 112 formed by 3D printing with the main frame 100, which can greatly improve the structural strength of the knee joint replacement intelligent navigation guide, optimize the structural design, remove the The redundant part makes the structure of the intelligent navigation guide for knee joint replacement simple and exposes the surgical field as much as possible.
  • the preparation of the first fitting surface column 110 and/or the second fitting surface column 112 is realized by the 3D printing technology, the printing consumables can be greatly reduced and the economy thereof can be improved.
  • the main frame 100 is made of metal material, it can be ensured that the main frame 100 can adapt to various sterilization methods, the structure is more stable, and the structural accuracy error caused by sterilization can be reduced.

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Abstract

本公开提供一种膝关节置换智能导航导板。膝关节置换智能导航导板包括主架和拟合面立柱，主架上设置有安装孔；拟合面立柱可拆卸地安装于安装孔且拟合面立柱通过3D打印成型。该膝关节置换智能导航导板能够使用常规方式制备主架，将3D打印成型的拟合面立柱与主架装配，可以大大提升该膝关节置换智能导航导板的结构强度，尽可能暴露手术视野。同时，还能够减小打印耗材，提高其经济性。同时还保证了主架能够适应多种灭菌方式，结构精度误差低。

Description

膝关节置换智能导航导板
相关申请的交叉引用
本申请要求在2021年03月17日提交中国专利局、申请号为CN202110286359.X、发明名称为“膝关节置换截骨导板”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及医疗设备领域，特别是涉及一种膝关节置换智能导航导板。
背景技术
膝关节置换截骨导板是一种手术辅助工具，利用导板，无需开髓，减少手术创伤，精简术中使用的工具，提高手术效率。同时缩短医生学习曲线，确保手术效率。而且导板是根据患者的骨质个性化定制的，对手术的准确性大大提高。
目前绝大多数导板都是整体设计，利用尼龙材料、树脂材料或者聚乳酸材料整体3D打印的。利用3D打印生产导板的材料需要满足生物性和力学性能并且适合3D打印工艺等多个需求，这样就会使选择范围很小，较难满足导板生产的各项需求。也即，整体设计并整体3D打印的匹配式导板至少存在以下几点不足：
1、由于3D打印材料的局限，为了保证导板力学性能，需要从结构设计上妥协，利用加厚、加大导板结构特征来提高力学性能，这样会导致导板的整体结构太笨重，体积太大，在术中使用不便并且会遮挡术者视野，不方便观察。
2、整体设计打印的导板在3D打印加工生产时，需要整个产品进行加工，3D打印工艺大多采用热熔或光固化方式，这样的加工方式对于较大尺寸的工件(特别是厚度大，长度很长的结构)不友好，因为厚度越大，长度越长，工件内应力越大，会造成3D打印工件整体结构的形变扭曲，并且收缩率越大，会造成更大的尺寸误差。
3、整体3D打印导板时，用时用料都很多，经济型不高。
4、在灭菌时，由于打印材料的特性，整体打印的导板在灭菌后，由于灭菌过程中，物理环境的变化，可能造成导板变形，精度降低，则导板的术中定位作用降低。
发明内容
本公开旨在至少解决前述存在的技术问题之一。为此，本公开提出一种膝关节置换智能导 航导板，通过使用3D打印技术形成拟合面立柱，能够使用常规方式制备主架，再将3D打印成型的拟合面立柱与主架进行装配，可以大大提升该膝关节置换智能导航导板的结构强度，优化结构设计，能够大幅减小打印耗材，能够优化膝关节置换智能导航导板的结构设计，去除冗余部分，使膝关节置换智能导航导板结构简单，尽可能暴露手术视野。
本公开实施例提供一种膝关节置换智能导航导板，包括：
主架，设置有安装孔；
拟合面立柱，可拆卸地安装于所述安装孔，所述拟合面立柱通过3D打印成型。
本公开实施例提供的膝关节置换智能导航导板，通过使用3D打印技术形成拟合面立柱，能够使用常规方式制备主架，再将3D打印成型的拟合面立柱与主架进行装配，可以大大提升该膝关节置换智能导航导板的结构强度，优化结构设计，去除冗余部分，使该膝关节置换智能导航导板的结构简单，尽可能暴露手术视野。同时，由于通过3D打印技术实现对拟合面立柱的制备，能够大幅减小打印耗材，提高其经济性。此外，由于将主架采用金属材料制备，可以保证主架能够适应多种灭菌方式，结构更稳定，可以减少由于灭菌造成的结构精度误差。
根据本公开的一个实施例，所述主架包括按压曲臂和抵接台，所述安装孔包括第一安装孔和第二安装孔；
所述按压曲臂的第一端设置有所述第一安装孔，所述按压曲臂的第二端与所述抵接台连接，所述抵接台上朝向所述第一安装孔的一侧设置有所述第二安装孔；
所述拟合面立柱包括第一拟合面立柱和第二拟合面立柱，所述第一拟合面立柱与所述第一安装孔之间，以及所述第二拟合面立柱与所述第二安装孔之间适于通过卡接结构连接。
根据本公开的一个实施例，所述按压曲臂呈弯曲状，所述按压曲臂的第一端由向左沿水平方向延伸设置，所述按压曲臂的第二端向下沿竖直方向延伸设置；
所述第一安装孔的开口朝向按压曲臂的弯曲中心敞开，所述第一安装孔的轴向为竖直方向，所述第一拟合面立柱可拆卸地安装于第一安装孔中。
根据本公开的一个实施例，按压曲臂的第二端与抵接台相互连接，所述抵接台被配置为安装所述第二拟合面立柱；
所述抵接台上形成有第二安装孔，所述第二拟合面立柱可拆卸地安装于第二安装孔中。
根据本公开的一个实施例，所述卡接结构包括相互卡接配合的第一卡块和第二卡块，
所述第一卡块设置于所述第一拟合面立柱与所述第一安装孔中的一个，所述第二卡块设置 于所述第一拟合面立柱与所述第一安装孔中的另一个；
所述第一卡块设置于所述第二拟合面立柱与所述第二安装孔中的一个，所述第二卡块设置于所述第二拟合面立柱与所述第二安装孔中的另一个。
根据本公开的一个实施例，所述第一安装孔的孔侧壁形成有适于发生形变的第一形变部，所述第一卡块或所述第二卡块设置于所述第一形变部上靠近所述第一安装孔的端面的一端；
所述第二安装孔的孔侧壁形成有适于发生形变的第二形变部，所述第一卡块或所述第二卡块设置于所述第二形变部上靠近所述第二安装孔的端面的一端。
根据本公开的一个实施例，所述第一拟合面立柱的一端形成有第一安装头，所述第一卡块或所述第二卡块形成于所述第一安装头的侧壁；
所述第二拟合面立柱的一端形成有第二安装头，所述第一卡块或所述第二卡块形成于所述第二安装头的侧壁。
根据本公开的一个实施例，所述第一安装孔为规则孔、异形孔中的一个，所述第一安装头的形状与所述第一安装孔的形状相适配；
所述第二安装孔为规则孔、异形孔中的另一个，所述第二安装头的形状与所述第二安装孔的形状相适配。
根据本公开的一个实施例，沿所述第一安装孔的轴向，在所述第一安装孔中形成有贯穿所述第一安装孔的第一置钉孔。
根据本公开的一个实施例，在所述按压曲臂的第二端形成有沿所述第二安装孔的轴向延伸，且贯穿所述按压曲臂的厚度方向的第二置钉孔。
根据本公开的一个实施例，沿所述第一安装孔的轴向和/或所述第二安装孔的轴向，在所述按压曲臂上形成有贯穿所述按压曲臂厚度方向的截骨槽。
根据本公开的一个实施例，在所述按压曲臂背离弯曲中心的表面和/或所述抵接台背离所述第一安装孔的表面形成有用以增大摩擦力的抓取结构。
本公开中的上述一个或多个技术方案，至少具有如下技术效果之一：
本公开实施例提供的膝关节置换智能导航导板，通过使用3D打印技术形成拟合面立柱，能够使用常规方式制备主架，再将3D打印成型的拟合面立柱与主架进行装配，可以大大提升该膝关节置换智能导航导板的结构强度，优化结构设计，去除冗余部分，使该膝关节置换智能导航导板的结构简单，尽可能暴露手术视野。同时，由于通过3D打印技术实现对拟合面立柱的制备， 能够大幅减小打印耗材，提高其经济性。此外，由于将主架采用金属材料制备，可以保证主架能够适应多种灭菌方式，结构更稳定，可以减少由于灭菌造成的结构精度误差。
附图说明
图1为本公开实施例提供的膝关节置换智能导航导板的一个角度的示意性结构图；
图2为本公开实施例提供的膝关节置换智能导航导板的另一个角度的示意性结构图；
图3为本公开实施例提供的膝关节置换智能导航导板的又一个角度的示意性结构图；
图4为本公开实施例提供的膝关节置换智能导航导板的示意性爆炸图；
图5为本公开实施例提供的主架的示意性侧视图；
图6为本公开实施例提供的主架的一个角度示意性结构图；
图7为本公开实施例提供的主架的另一个角度示意性结构图；
图8为本公开实施例提供的膝关节置换智能导航导板的一个角度的使用状态参考图；
图9为本公开实施例提供的膝关节置换智能导航导板的另一个角度的使用状态参考图。
附图标记：
100、主架；102、按压曲臂；104、抵接台；106、第一安装孔；108、第二安装孔；110、第一拟合面立柱；112、第二拟合面立柱；114、第一卡块；116、第二卡块；118、第一形变部；120、第二形变部；122、第一安装头；124、第二安装头；126、第一置钉孔；128、第二置钉孔；130、截骨槽；132、抓取结构。
具体实施方式
为使公开的目的、技术方案和优点更加清楚，下面将结合公开中的附图，对公开中的技术方案进行清楚地描述，显然，所描述的实施例是公开一部分实施例，而不是全部的实施例。基于公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于公开保护的范围。
在本公开实施例的描述中，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开实施例的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗 示相对重要性。
在本公开实施例的描述中，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开实施例中的具体含义。
在本公开实施例中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开实施例的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
如图1至图9所示，本公开实施例提供一种膝关节置换智能导航导板，包括主架100和拟合面立柱；主架100上设置有安装孔，拟合面立柱可拆卸地安装于安装孔，拟合面立柱通过3D打印成型。
本公开实施例提供的膝关节置换智能导航导板，本公开实施例提供的膝关节置换智能导航导板，通过使用3D打印技术形成拟合面立柱，能够使用常规方式制备主架100，再将3D打印成型的拟合面立柱与主架100进行装配，可以大大提升该膝关节置换智能导航导板的结构强度，优化结构设计，去除冗余部分，使该膝关节置换智能导航导板的结构简单，尽可能暴露手术视野。同时，由于通过3D打印技术实现对拟合面立柱的制备，能够大幅减小打印耗材，提高其经济性。此外，由于将主架100采用金属材料制备，可以保证主架100能够适应多种灭菌方式，结构更稳定，可以减少由于灭菌造成的结构精度误差。
可选地，在本公开实施例提供的膝关节置换智能导航导板中，主要包括主架100以及拟合面立柱。
其中，主架100包括按压曲臂102和抵接台104；拟合面立柱包括第一拟合面立柱110和第二拟合面立柱112；安装孔包括第一安装孔106和第二安装孔108。
按压曲臂102的作用在于固定第一拟合面立柱110，同时将该膝关节置换智能导航导板能够按压到患者的病患位置。
在本公开实施例中，按压曲臂102大致呈L形，也即，如图5所示，在本公开实施例中，按压曲臂102呈弯曲状。可选地，按压曲臂102的第一端由向左沿水平方向延伸设置，按压曲臂102的第二端向下沿竖直方向延伸设置，由此，即可形成呈弯曲状的按压曲臂102。
在按压曲臂102的第一端设置有第一安装孔106，可选地，第一安装孔106的开口朝向按压曲臂102的弯曲中心敞开，也即，如图1至图3所示，第一安装孔106的轴向为竖直方向，第一拟合面立柱110可拆卸地安装于第一安装孔106中。
按压曲臂102的第二端与抵接台104相互连接，其中，抵接台104的作用在于安装第二拟合面立柱112，由此，在抵接台104上形成有第二安装孔108，第二安装孔108的开口方向为如图1至图3所示的水平方向向右，第二拟合面立柱112可拆卸地安装于第二安装孔108中。
可选地，第一安装孔106和第二安装孔108均为盲孔。此外，第一安装孔106为两个，两个第一安装孔106分别设置在按压曲臂102的第一端的两侧。
在本公开实施例中，主架100可通过金属材料采用常规的制备方式制作，也即，主架100可以利用金属材料规格化生产。由此，即可提升主架100的制备效率，降低该膝关节置换智能导航导板的整体制作成本。
本公开实施例中的第一拟合面立柱110和/或第二拟合面立柱112通过3D打印成型，换而言之，在本公开实施例中，通过3D打印技术将第一拟合面立柱110和/或第二拟合面立柱112制备成型，可以理解的是，由此即可实现该膝关节置换智能导航导板的组配式安装，即通过金属材料制备的主架100以及通过3D打印技术制备的第一拟合面立柱110和/或第二拟合面立柱112的组配式安装，能够大幅减小该膝关节置换智能导航导板打印耗材，提高其经济性。
在本公开实施例中，第一拟合面立柱110以及第二拟合面立柱112均通过3D打印技术制备成型。当然，在其他的一些实施例中，也可以单独将第一拟合面立柱110或者第二拟合面立柱112通过3D打印的形式制备成型。
根据本公开的一个实施例，第一拟合面立柱110与第一安装孔106之间，以及第二拟合面立柱112与第二安装孔108之间适于通过卡接结构连接。
第一拟合面立柱110与第一安装孔106之间以及第二拟合面立柱112与第二安装孔108之间通过卡接结构连接，能够提升第一拟合面立柱110与第一安装孔106以及第二拟合面立柱112与第二安装孔108之间的连接便利性。换而言之，当需要针对患者的病患位置更换不同规格的第一拟合面立柱110、第二拟合面立柱112时，可通过卡接结构实现快速地拆卸和连接。
在本公开的一个实施例中，卡接结构包括相互卡接配合的第一卡块114和第二卡块116。
第一卡块114设置于第一拟合面立柱110与第一安装孔106中的一个，第二卡块116设置于第一拟合面立柱110与第一安装孔106中的另一个。
例如，第一卡块114可以设置在第一拟合面立柱110上，第二卡块116可以设置于第一安装孔106中。或者，第一卡块114可以设置在第一安装孔106中，第二卡块116可以设置于第一拟合面立柱110上。
第一卡块114设置于第二拟合面立柱112与第二安装孔108中的一个，第二卡块116设置于第二拟合面立柱112与第二安装孔108中的另一个。
例如，第一卡块114可以设置在第二拟合面立柱112上，第二卡块116可以设置于第二安装孔108中。或者，第一卡块114可以设置在第二安装孔108中，第二卡块116可以设置于第二拟合面立柱112上。
通过第一卡块114与第二卡块116的卡接配合，能够实现第一拟合面立柱110与第一安装孔106以及第二拟合面立柱112与第二安装孔108的快速拆装配合。
当然，在其他的一些实施例中，上文所述的卡接结构还可以是卡块与卡槽的配合方式。
例如，卡块可以设置在第一拟合面立柱110上，卡槽可以设置于第一安装孔106中。或者，卡块可以设置在第一安装孔106中，卡槽可以设置于第一拟合面立柱110上。
通过卡块与卡槽的卡接配合，实现第一拟合面立柱110与第一安装孔106以及第二拟合面立柱112与第二安装孔108的快速拆装配合。
或者，上文所述的卡接结构还可以使用弹性锁舌等结构代替，此处不再穷举。
根据本公开的一个实施例，第一安装孔106的孔侧壁形成有适于发生形变的第一形变部118，第一卡块114或第二卡块116设置于第一形变部118上靠近第一安装孔106的端面的一端；第二安装孔108的孔侧壁形成有适于发生形变的第二形变部120，第一卡块114或第二卡块116设置于第二形变部120上靠近第二安装孔108的端面的一端。
参见图6和图7，在第一安装孔106的孔侧壁形成有第一形变部118，换而言之，当第一拟 合面立柱110插入第一安装孔106中，第一形变部118能够发生一定的形变以使得第一拟合面立柱110顺利地插入到第一安装孔106中。在第一形变部118靠近第一安装孔106的孔端面的位置设置有上文所述的第一卡块114或第二卡块116。
同理，在第二安装孔108的孔侧壁形成有第二形变部120，换而言之，当第二拟合面立柱112插入第二安装孔108中，第二形变部120能够发生一定的形变以使得第二拟合面立柱112顺利地插入到第二安装孔108中。在第二形变部120靠近第二安装孔108的孔端面的位置设置有上文所述的第一卡块114或第二卡块116。
例如，可以在第一安装孔106的孔侧壁开设两个贯穿第一安装孔106的孔侧壁的开口槽，以此来形成第一形变部118。
根据本公开的一个实施例，第一拟合面立柱110的一端形成有第一安装头122，第一卡块114或第二卡块116形成于第一安装头122的侧壁；第二拟合面立柱112的一端形成有第二安装头124，第一卡块114或第二卡块116形成于第二安装头124的侧壁。
参见图4，在第一拟合面立柱110的端部形成有第一安装头122，第一卡块114或者第二卡块116形成在第一安装头122的侧壁上。可选地，当第一安装头122的截面呈圆形时，第一安装头122的直径略小于第一拟合面立柱110的直径。
同样，在第二拟合面立柱112的端部形成有第二安装头124，第一卡块114或者第二卡块116形成在第二安装头124的侧壁上。可选地，当第二安装头124的截面呈圆形时，第二安装头124的直径略小于第二拟合面立柱112的直径。
换而言之，在本公开实施例中，第一安装头122用于将第一拟合面立柱110安装于第一安装孔106中，第二安装头124用于将第二拟合面立柱112安装于第二安装孔108中。
根据本公开的一个实施例，第一安装孔106为规则孔、异形孔中的一个，第一安装头122的形状与第一安装孔106的形状相适配；第二安装孔108为规则孔、异形孔中的另一个，第二安装头124的形状与第二安装孔108的形状相适配。
可选地，所谓规则孔是指例如圆孔、三角形孔、矩形孔等形状规则的孔，所谓异形孔是指例如半圆形与三角形相结合的孔。
如前所述，在本公开实施例中，第一安装孔106为两个，两个第一安装孔106可以设置成规则孔，例如其中一个第一安装孔106可以设置为三角形孔，另一个第一安装孔106可以设置为矩形孔，第二安装孔108可以设置为扇形孔。相应的，第一安装头122的形状分别与两个第 一安装孔106的形状相适配，第二安装头124的形状与第二安装孔108的形状相适配。
这样一来，就能够防止第一拟合面立柱110、第二拟合面立柱112与第一安装孔106、第二安装孔108的配合错误。当然，也可通过其他方式实现第一拟合面立柱110、第二拟合面立柱112与第一安装孔106、第二安装孔108的防呆设计，例如，可以采用不同颜色设置所述第一拟合面立柱110、第二拟合面立柱112，第一安装孔106的颜色可以与第一拟合面立柱110的颜色相对应，第二安装孔108的颜色可以与第二拟合面立柱112的颜色相对应等。
根据本公开的一个实施例，沿第一安装孔106的轴向，在第一安装孔106中形成有贯穿第一安装孔106的第一置钉孔126；在按压曲臂102的第二端形成有沿第二安装孔108的轴向延伸，且贯穿按压曲臂102的厚度方向的第二置钉孔128。
通过在第一安装孔106中设置第一置钉孔126，在按压曲臂102的第二端设置第二置钉孔128，能够使得骨钉(图中未示出)穿过并引导骨钉进入病患位置。通过设置第一置钉孔126以及第二置钉孔128，能够方便骨钉将该膝关节置换智能导航导板固定至病患位置。
可选地，第一置钉孔126的轴向与第一安装孔106的轴向相重合，第二置钉孔128的轴向与第二安装孔108的轴向相平行。
根据本公开的一个实施例，沿第一安装孔106的轴向和/或第二安装孔108的轴向，在按压曲臂102上形成有贯穿按压曲臂102厚度方向的截骨槽130。
参见图1至图7，在按压曲臂102的第一端以及第二端分别形成有沿着第一安装孔106的轴向以及沿着第二安装孔108的轴向延伸，且贯穿按压曲臂102的截骨槽130。通过在按压曲臂102上设置截骨槽130，能够确定患者病患位置处的截骨面，再将截骨片插入截骨槽130中，即可将特定厚度、角度的骨质切除。
根据本公开的一个实施例，在按压曲臂102背离弯曲中心的表面和/或抵接台104背离第一安装孔106的表面形成有用以增大摩擦力的抓取结构132。
通过在按压曲臂102背离弯曲中心的表面以及抵接台104背离第一安装孔106的表面设置抓取结构132，能够方便医护人员在操作该膝关节置换智能导航导板的过程中，对于该膝关节置换智能导航导板的抓取更加稳定。此外，还可在抓取结构132的表面设置一层增大摩擦力的涂层。
综上所述，本公开实施例提供的膝关节置换智能导航导板，通过使用3D打印技术形成第一拟合面立柱110和/或第二拟合面立柱112，能够使用常规方式制备主架100，再将3D打印成型 的第一拟合面立柱110和/或第二拟合面立柱112与主架100进行装配，可以大大提升该膝关节置换智能导航导板的结构强度，优化结构设计，去除冗余部分，使该膝关节置换智能导航导板的结构简单，尽可能暴露手术视野。同时，由于通过3D打印技术实现对第一拟合面立柱110和/或第二拟合面立柱112的制备，能够大幅减小打印耗材，提高其经济性。此外，由于将主架100采用金属材料制备，可以保证主架100能够适应多种灭菌方式，结构更稳定，可以减少由于灭菌造成的结构精度误差。
以上所述仅为本公开的较佳实施例而已，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (12)

  1. 一种膝关节置换智能导航导板，包括：
    主架(100)，设置有安装孔；
    拟合面立柱，可拆卸地安装于所述安装孔，所述拟合面立柱通过3D打印成型。
  2. 根据权利要求1所述的膝关节置换智能导航导板，其中，所述主架(100)包括按压曲臂(102)和抵接台(104)，所述安装孔包括第一安装孔(106)和第二安装孔(108)；
    所述按压曲臂(102)的第一端设置有所述第一安装孔(106)，所述按压曲臂(102)的第二端与所述抵接台(104)连接，所述抵接台(104)上朝向所述第一安装孔(106)的一侧设置有所述第二安装孔(108)；
    所述拟合面立柱包括第一拟合面立柱(110)和第二拟合面立柱(112)，所述第一拟合面立柱(110)与所述第一安装孔(106)之间，以及所述第二拟合面立柱(112)与所述第二安装孔(108)之间适于通过卡接结构连接。
  3. 根据权利要求2所述的膝关节置换智能导航导板，其中，所述按压曲臂(102)呈弯曲状，所述按压曲臂(102)的第一端由向左沿水平方向延伸设置，所述按压曲臂(102)的第二端向下沿竖直方向延伸设置；
    所述第一安装孔(106)的开口朝向按压曲臂(102)的弯曲中心敞开，所述第一安装孔(106)的轴向为竖直方向，所述第一拟合面立柱(110)可拆卸地安装于第一安装孔(106)中。
  4. 根据权利要求2所述的膝关节置换智能导航导板，其中，按压曲臂(102)的第二端与抵接台(104)相互连接，所述抵接台(104)被配置为安装所述第二拟合面立柱(112)；
    所述抵接台(104)上形成有第二安装孔(108)，所述第二拟合面立柱(112)可拆卸地安装于第二安装孔(108)中。
  5. 根据权利要求2所述的膝关节置换智能导航导板，其中，所述卡接结构包括相互卡接配合的第一卡块(114)和第二卡块(116)，
    所述第一卡块(114)设置于所述第一拟合面立柱(110)与所述第一安装孔(106)中的一个，所述第二卡块(116)设置于所述第一拟合面立柱(110)与所述第一安装孔(106)中的另一个；
    所述第一卡块(114)设置于所述第二拟合面立柱(112)与所述第二安装孔(108)中的一个，所述第二卡块(116)设置于所述第二拟合面立柱(112)与所述第二安装孔(108)中的另一个。
  6. 根据权利要求5所述的膝关节置换智能导航导板，其中，所述第一安装孔(106)的孔侧壁形成有适于发生形变的第一形变部(118)，所述第一卡块(114)或所述第二卡块(116)设 置于所述第一形变部(118)上靠近所述第一安装孔(106)的端面的一端；
    所述第二安装孔(108)的孔侧壁形成有适于发生形变的第二形变部(120)，所述第一卡块(114)或所述第二卡块(116)设置于所述第二形变部(120)上靠近所述第二安装孔(108)的端面的一端。
  7. 根据权利要求5所述的膝关节置换智能导航导板，其中，所述第一拟合面立柱(110)的一端形成有第一安装头(122)，所述第一卡块(114)或所述第二卡块(116)形成于所述第一安装头(122)的侧壁；
    所述第二拟合面立柱(112)的一端形成有第二安装头(124)，所述第一卡块(114)或所述第二卡块(116)形成于所述第二安装头(124)的侧壁。
  8. 根据权利要求7所述的膝关节置换智能导航导板，其中，所述第一安装孔(106)为规则孔、异形孔中的一个，所述第一安装头(122)的形状与所述第一安装孔(106)的形状相适配；
    所述第二安装孔(108)为规则孔、异形孔中的另一个，所述第二安装头(124)的形状与所述第二安装孔(108)的形状相适配。
  9. 根据权利要求1所述的膝关节置换智能导航导板，其中，沿所述第一安装孔(106)的轴向，在所述第一安装孔(106)中形成有贯穿所述第一安装孔(106)的第一置钉孔(126)。
  10. 根据权利要求9所述的膝关节置换智能导航导板，其中，在所述按压曲臂(102)的第二端形成有沿所述第二安装孔(108)的轴向延伸，且贯穿所述按压曲臂(102)的厚度方向的第二置钉孔(128)。
  11. 根据权利要求9所述的膝关节置换智能导航导板，其中，沿所述第一安装孔(106)的轴向和/或所述第二安装孔(108)的轴向，在所述按压曲臂(102)上形成有贯穿所述按压曲臂(102)厚度方向的截骨槽(130)。
  12. 根据权利要求1所述的膝关节置换智能导航导板，其中，在所述按压曲臂(102)背离弯曲中心的表面和/或所述抵接台(104)背离所述第一安装孔(106)的表面形成有用以增大摩擦力的抓取结构(132)。
PCT/CN2022/076971 2021-03-17 2022-02-18 膝关节置换智能导航导板 WO2022193904A1 (zh)

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