技术领域technical field
本发明涉及关节假体领域，特别是一种人工髋关节假体。The invention relates to the field of joint prosthesis, in particular to an artificial hip joint prosthesis.
背景技术Background technique
近年来，随着人工髋关节置换术的应用和普及，骨性关节炎、类风湿性关节炎、股骨头无菌性坏死、创伤性关节炎、先天性髋臼发育不良等疾病逐步得到有效治疗和改善，人工髋关节置换手术已成为治疗髋关节疾病疗效最好的方法。该手术所使用的人工髋关节假体包括股骨假体和髋臼杯假体，其中髋臼杯假体的牢固性和稳定性，以及股骨假体和髋臼杯与人体自然骨骼结构的适应性，是影响人工髋关节假体寿命和安全较为关键的因素。而目前采用较多的为一体式设计或铰接式设计，但其调节性仍然有限，无法满足人体自然骨骼的灵活性和人体多种生理需要，从而影像治疗效果。In recent years, with the application and popularization of artificial hip replacement, osteoarthritis, rheumatoid arthritis, aseptic necrosis of the femoral head, traumatic arthritis, congenital acetabular dysplasia and other diseases have gradually been effectively treated And improvement, artificial hip replacement surgery has become the most effective way to treat hip diseases. The artificial hip joint prosthesis used in this operation includes the femoral prosthesis and the acetabular cup prosthesis, among which the firmness and stability of the acetabular cup prosthesis, and the adaptability of the femoral prosthesis and acetabular cup to the natural bone structure of the human body , is a key factor affecting the life and safety of artificial hip prosthesis. At present, more integrated designs or articulated designs are used, but their adjustability is still limited, and they cannot meet the flexibility of the natural bones of the human body and various physiological needs of the human body, thereby improving the effect of image therapy.
由于人体髋关节功能复杂，特别是具有多个方向的活动能力，且承受一定的拉、压、折、屈等负荷，所以对材料性能的选择要求非常高。譬如：髋关节由关节头和关节窝组成，用于连接股骨头和骨盆的关节窝。通常连接股骨的金属杆为钴铬合金或钛合金材料制成，插入髋关节窝的股骨顶端的球状物则由钴铬合金或是精制氧化铝陶瓷材料制成，髋关节窝本身通常为超高分子量聚乙烯半球构成，可直接植入骨盆。临床研究表明，基于超高分子量聚乙烯等材料的人工关节植入人体的有效工作年限为10～15年。可见，超高分子量聚乙烯等材料都有使用寿命，植入人体后同样面临失效的危险，在长期的使用过程中，承受着较大载荷以及与合金、陶瓷等硬质材料相对往复运动，容易因磨损引起诸多问题；磨损产生的磨屑聚积并诱发软组织产生一系列不良的生物学反应，使固定良好的人工髋关节松动，大大缩短了人工髋关节假体的使用寿命，从而使得大多患者不得不中途进行翻修手术。Due to the complex functions of the human hip joint, especially the ability to move in multiple directions, and to bear certain loads such as tension, compression, bending, and flexion, the requirements for the selection of material properties are very high. For example: The hip joint is composed of the joint head and the joint socket, which is used to connect the femoral head and the joint socket of the pelvis. Usually the metal rod connecting the femur is made of cobalt chromium alloy or titanium alloy, and the ball at the top of the femur inserted into the hip socket is made of cobalt chromium alloy or refined alumina ceramic material. The hip socket itself is usually super high Molecular weight polyethylene hemispheres can be implanted directly in the pelvis. Clinical studies have shown that the effective working life of artificial joints based on ultra-high molecular weight polyethylene and other materials implanted into the human body is 10 to 15 years. It can be seen that materials such as ultra-high molecular weight polyethylene have a service life, and they also face the danger of failure after being implanted in the human body. Many problems are caused by wear and tear; the accumulation of wear debris and induces a series of adverse biological reactions in soft tissues, which loosens the well-fixed artificial hip joint and greatly shortens the service life of the artificial hip joint prosthesis. Revision surgery is not performed midway through.
另外，随着微创伤外科的发展，微创伤人工髋关节置换手术也越来越受到重视，其需要在一个相对较小的切口(5～10cm)内完成对关节假体的置换，需要医生丰富的经验和手术器械的改进以获得良好的手术效果。因此对工具提出了更高的要求，要求可实现足够的手术视野，减少手术时间，精准的定位。In addition, with the development of minimally invasive surgery, more and more attention has been paid to minimally invasive artificial hip replacement surgery, which needs to complete the replacement of the joint prosthesis in a relatively small incision (5-10 cm). The doctor's rich experience and the improvement of surgical instruments to achieve good surgical results. Therefore, higher requirements are put forward for the tool, which requires sufficient surgical field of view, reduced surgical time, and precise positioning.
因此，提高人工髋关节假体的灵活调节性，使其满足各方向活动的需求，并增强相关接触面的耐磨性，同时改善植入工具，减小手术创伤，使植入更安全，这些问题对于医务人员和患者而言亟待解决。Therefore, improving the flexible adjustment of the artificial hip joint prosthesis to meet the needs of activities in all directions, and enhancing the wear resistance of the relevant contact surfaces, while improving the implantation tools, reducing surgical trauma, and making implantation safer, these Problems need to be solved urgently for medical personnel and patients.
发明内容Contents of the invention
本发明主要解决的技术问题是提供一种调节灵活、能满足各方向活动需求、相关接触面耐磨性高的人工髋关节假体，并改善其植入工具，减小手术创伤，使植入更安全。该人工髋关节假体包括一股骨柄、股骨球头和弹性连接件，股骨柄的远端可插接在股骨髓腔内，股骨柄的近端向侧上方延伸，自然状态下延伸端轴线与股骨柄轴线间夹角为110°～140°，延伸端的端部突然变细成台阶状，细段向侧上方延伸6～10mm，用于固定弹性连接件，弹性连接件一端插入细段并抵靠所述台阶处，弹性连接件另一端与股骨球头相连，股骨球头与弹性连接件连接处具有长6～10mm的柱状突起，通过柱状突起实现弹性连接件与股骨球头的固定连接。由此实现人工髋关节假体各角度的任意调整，尤其是在矢状位和冠状位分别对前倾角和颈干角进行调整。The main technical problem to be solved by the present invention is to provide an artificial hip joint prosthesis that can be adjusted flexibly, can meet the demands of activities in all directions, and has high wear resistance of the relevant contact surfaces, and improve its implantation tools, reduce surgical trauma, and make implantation safer. The artificial hip joint prosthesis includes a femoral stem, a femoral ball head and an elastic connector. The distal end of the femoral stem can be inserted into the femoral medullary cavity, and the proximal end of the femoral stem extends sideways upward. The included angle between femoral stem axes is 110°～140°. The end of the extension end suddenly becomes thinner into a step shape, and the thin section extends 6-10mm upward to the side to fix the elastic connector. One end of the elastic connector is inserted into the thin section and against it. At the step, the other end of the elastic connector is connected to the femoral ball head. The connection between the femoral ball head and the elastic connector has a columnar protrusion with a length of 6-10 mm. The elastic connector and the femoral ball head are fixedly connected through the columnar protrusion. In this way, the arbitrary adjustment of various angles of the artificial hip joint prosthesis can be realized, especially the anteversion angle and the neck-shaft angle can be adjusted respectively in the sagittal position and the coronal position.
股骨球头还包括相互配合的球状体和髋臼杯，球状体包括金属基体，金属基体外面设有新形式碳涂层，该涂层具有石墨烯的强度和硬度，但比石墨烯更耐磨，其微观结构为层片状单晶结构，晶格间距为0.21nm，同一片层的碳原子之间为sp3轨道杂化碳键连接，层与层之间的碳原子之间为sp2杂化碳键连接，其C含量为99～100％。髋臼杯包括聚乙烯基体，聚乙烯基体与球状体相配合的一面上设有与球状体金属基体相同的涂层；涂层厚度均小于10微米，由于该涂层的特殊结构，不仅满足了其硬度需求，也使得球状体和髋臼杯之间具有较高的耐磨性。The femoral head also includes a cooperating spherical body and acetabular cup. The spherical body includes a metal base covered with a new form of carbon coating that has the strength and hardness of graphene, but is more wear-resistant than graphene , its microstructure is lamellar single crystal structure, the lattice spacing is 0.21nm, the carbon atoms in the same layer are connected by sp3 orbital hybrid carbon bonds, and the carbon atoms between layers are sp2 hybridization Carbon bond connection, its C content is 99-100%. The acetabular cup includes a polyethylene matrix, and the side of the polyethylene matrix that matches the spherical body is provided with the same coating as the metal matrix of the spherical body; the thickness of the coating is less than 10 microns. Due to the special structure of the coating, it not only meets the Its hardness requirement also results in high wear resistance between the spherical body and the acetabular cup.
所述股骨柄具有插入股骨髓腔所需的生理弯曲度，其近端和远端具有不同的截面，近端由近至远截面呈圆形逐渐过渡为椭圆形结构，远端呈片状锥形结构，从而能够有效抗旋转，并易于插入股骨髓腔内。The femoral stem has the physiological curvature required for insertion into the femoral medullary cavity, and its proximal and distal ends have different cross sections. Shaped structure, which can effectively resist rotation, and is easy to insert into the femoral medullary cavity.
所述弹性连接件为弹簧，形成弹簧的弹性金属丝排列紧密，其通过过盈配合分别与两端的股骨柄和股骨球头固定连接。The elastic connector is a spring, and the elastic metal wires forming the spring are closely arranged, and are respectively fixedly connected with the femoral stem and the femoral ball head at both ends through interference fit.
所述弹性连接件为筒状弹性金属，其通过过盈配合分别与两端的股骨柄和股骨球头固定连接。The elastic connector is cylindrical elastic metal, which is respectively fixedly connected with the femoral stem and the femoral ball head at both ends through interference fit.
所述弹性连接件具有人工髋关节假体所需的承重能力，并能够进行任意方向弯曲，其弯曲角度可偏离轴向20－40度。The elastic connecting piece has the load-bearing capacity required by the artificial hip joint prosthesis, and can be bent in any direction, and its bending angle can deviate from the axial direction by 20-40 degrees.
所述股骨柄延伸端的细段与股骨柄由同一材料一体成形，所述股骨球头与其上的柱状突起也是同一材料一体成形，从而使得整体结构更加简单、耐用，制作安装更加方便，植入后更加稳定。The thin section of the extension end of the femoral stem and the femoral stem are integrally formed of the same material, and the femoral ball head and the columnar protrusion on it are also integrally formed of the same material, so that the overall structure is simpler and more durable, and the manufacturing and installation are more convenient. more stable.
本发明还提供将如前所述的人工髋关节假体植入人体的置换装置，该置换装置具有操纵杆、导向伸缩杆、髋臼杯连接器、套筒和髋臼杯敲击杆，操纵杆的近端具有固定连接的把手，远端连接有髋臼杯连接器，把手下方固定连接一导向伸缩杆，导向伸缩杆的另一端设置有套筒孔，套筒嵌套在套筒孔内，套筒用来插入髋臼杯敲击杆，导向伸缩杆具有弹性和支撑性，可进行各方向弯曲、拉伸和缩短，从而根据需要调节套筒与髋臼杯连接器的距离，并使两者对准以利于安装，安装时需事先调整好导向伸缩杆的距离和角度，将髋臼杯定位后使用髋臼杯敲击杆迅速敲实固定，随后移除髋臼杯敲击杆和置换装置。The present invention also provides a replacement device for implanting the aforementioned artificial hip joint prosthesis into a human body. The proximal end of the rod has a fixedly connected handle, the far end is connected with the acetabular cup connector, and a guide telescopic rod is fixedly connected under the handle, and the other end of the guide telescopic rod is provided with a sleeve hole, and the sleeve is nested in the sleeve hole , the sleeve is used to insert the acetabular cup percussion rod, the guiding telescopic rod is elastic and supportive, and can be bent, stretched and shortened in all directions, so as to adjust the distance between the sleeve and the acetabular cup connector as needed, and make The two are aligned to facilitate installation. During installation, the distance and angle of the guiding telescopic rod must be adjusted in advance. After positioning the acetabular cup, use the acetabular cup knocking rod to quickly tap and fix it, and then remove the acetabular cup knocking rod and replacement device.
所述导向伸缩杆为弹性金属材料或PVC材料制作而成，杆体为空心管状结构，呈褶皱状压叠形式以在外力作用下利于伸缩，而在自然状态下不变性不伸缩，呈现金属或PVC的固有强度，从而能够承受髋臼杯敲击杆的重量和压力。The guide telescopic rod is made of elastic metal material or PVC material. The rod body is a hollow tubular structure, which is in the form of folds and folds to facilitate expansion and contraction under the action of external force, but does not expand and contract in the natural state, showing metal or PVC inherent strength to withstand the weight and pressure of the acetabular cup striker.
所述髋臼杯敲击杆穿过套筒，一端与髋臼杯连接器相连，另一端具有方便敲击的柄部，髋臼杯敲击杆为硬质金属材料制作而成，为中空管状结构，管壁厚0.5－2mm，所述金属材料可为铝合金、钛合金、不锈钢等，需满足轻盈、结实耐用等特点。The acetabular cup knocking rod passes through the sleeve, one end is connected with the acetabular cup connector, and the other end has a handle for easy tapping. The acetabular cup knocking rod is made of hard metal material and is hollow tubular Structure, the wall thickness of the tube is 0.5-2mm, the metal material can be aluminum alloy, titanium alloy, stainless steel, etc., and it needs to meet the characteristics of lightness, strength and durability.
所述髋臼杯连接器与操纵杆的远端活动卡接，并可在适当范围内借用外力调整相对角度，角度调整好后自动锁定，在外力作用下方可再次进行调整。The acetabular cup connector is engaged with the distal end of the joystick, and the relative angle can be adjusted by external force within an appropriate range. After the angle is adjusted, it is automatically locked, and can be adjusted again under the action of external force.
本发明的有益效果：Beneficial effects of the present invention:
由于在股骨柄和股骨球头之间采用了弹性连接件，并在球状体和髋臼杯接触面上采用了高耐磨性碳涂层，从而使得人工髋关节假体调节灵活、能满足各方向活动需求，且相关接触面耐磨性高，更符合髋关节部位的生理需求，并能够避免因中途翻修而造成的二次手术风险；同时，还提供了一种具有操纵杆和导向伸缩杆的人工髋关节假体置换装置，其能够减小手术创伤，使植入更安全。Due to the elastic connection between the femoral stem and the femoral ball head, and the high wear-resistant carbon coating on the contact surface between the spherical body and the acetabular cup, the artificial hip joint prosthesis can be adjusted flexibly and can meet various demands. Directional activity requirements, and the relevant contact surface has high wear resistance, which is more in line with the physiological needs of the hip joint, and can avoid the risk of secondary surgery caused by midway revision; at the same time, it also provides a joystick and guiding telescopic rod The artificial hip joint replacement device can reduce surgical trauma and make implantation safer.
附图说明Description of drawings
图1是本发明一种人工髋关节假体的结构示意图；Fig. 1 is the structural representation of a kind of artificial hip joint prosthesis of the present invention;
图2是本发明一种人工髋关节假体中股骨球头的结构示意图；Fig. 2 is the structural representation of femoral ball head in a kind of artificial hip joint prosthesis of the present invention;
图3是本发明一种人工髋关节假体置换装置的结构示意图，其具有高弹性导向伸缩杆；Fig. 3 is a structural schematic diagram of an artificial hip joint prosthesis replacement device according to the present invention, which has a highly elastic guiding telescopic rod;
附图中各部件的标记如下：1、股骨柄；2、股骨球头；3、弹性连接件；4、股骨柄远端；5、股骨柄近端；6、柱状突起；7、球状体；8、髋臼杯；9、金属基体；10、涂层；11、聚乙烯基体；12、操纵杆；13、导向伸缩杆；14、髋臼杯连接器；15、套筒；16、髋臼杯敲击杆；17、把手；18、柄部。The marks of each part in the accompanying drawings are as follows: 1, femoral stem; 2, femoral ball head; 3, elastic connector; 4, femoral stem distal end; 5, femoral stem proximal end; 6, columnar protrusion; 7, spherical body; 8. Acetabular cup; 9. Metal matrix; 10. Coating; 11. Polyethylene matrix; 12. Joystick; 13. Guide telescopic rod; 14. Acetabular cup connector; 15. Sleeve; 16. Acetabular Cup knocking rod; 17, handle; 18, handle.
具体实施方式detailed description
下面结合附图对本发明的较佳实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
实施例1：Example 1:
如图1所示，人工髋关节假体包括一股骨柄1、股骨球头2和弹性连接件3，股骨柄1的远端4可插接在股骨髓腔内，股骨柄的近端5向侧上方延伸，自然状态下延伸端轴线与股骨柄轴线间夹角为110°～140°，延伸端的端部突然变细成台阶状，细段向侧上方延伸6～10mm，用于固定弹性连接件3，弹性连接件3一端插入细段并抵靠所述台阶处，弹性连接件3另一端与股骨球头2相连，股骨球头与弹性连接件3连接处具有长6～10mm的柱状突起6，通过柱状突起6实现弹性连接件与股骨球头的固定连接。由此实现人工髋关节假体各角度的任意调整，尤其是在矢状位和冠状位分别对前倾角和颈干角进行调整。As shown in Figure 1, the artificial hip joint prosthesis includes a femoral stem 1, a femoral ball head 2 and an elastic connector 3. The distal end 4 of the femoral stem 1 can be inserted into the femoral medullary cavity, and the proximal end of the femoral stem 5 Extend sideways and upwards. In the natural state, the angle between the axis of the extension end and the axis of the femoral stem is 110°-140°. The end of the extension end suddenly becomes thinner into a step shape, and the thin section extends 6-10mm upwards to the side, which is used to fix the elastic connection. Part 3, one end of the elastic connector 3 is inserted into the thin section and leans against the step, the other end of the elastic connector 3 is connected to the femoral ball head 2, and the connection between the femoral ball head and the elastic connector 3 has a columnar protrusion with a length of 6-10 mm 6. Realize the fixed connection between the elastic connector and the femoral ball head through the columnar protrusion 6 . In this way, the arbitrary adjustment of various angles of the artificial hip joint prosthesis can be realized, especially the anteversion angle and the neck-shaft angle can be adjusted respectively in the sagittal position and the coronal position.
股骨球头2还包括相互配合的球状体7和髋臼杯8，如图2所示，球状体7包括金属基体9，金属基体9外面设有新形式碳涂层10，该涂层10具有石墨烯的强度和硬度，但比石墨烯更耐磨，其微观结构为层片状单晶结构，晶格间距为0.21nm，同一片层的碳原子之间为sp3轨道杂化碳键连接，层与层之间的碳原子之间为sp2杂化碳键连接，其C含量为99～100％。髋臼杯8包括聚乙烯基体11，聚乙烯基体与球状体相配合的一面上设有与球状体金属基体相同的涂层10；涂层10厚度均小于10微米，由于该涂层的特殊结构，不仅满足了其硬度需求，也使得球状体7和髋臼杯8之间具有较高的耐磨性。The femoral ball head 2 also includes a spherical body 7 and an acetabular cup 8 that cooperate with each other. As shown in FIG. Graphene has the strength and hardness, but it is more wear-resistant than graphene. Its microstructure is a lamellar single crystal structure with a lattice spacing of 0.21nm. The carbon atoms in the same sheet are connected by sp3 orbital hybrid carbon bonds. The carbon atoms between the layers are connected by sp2 hybrid carbon bonds, and the C content is 99-100%. The acetabular cup 8 includes a polyethylene matrix 11, and the side of the polyethylene matrix that matches the spherical body is provided with the same coating 10 as the metal matrix of the spherical body; the thickness of the coatings 10 is less than 10 microns, due to the special structure of the coating , which not only meets the hardness requirement, but also makes the relationship between the spherical body 7 and the acetabular cup 8 have higher wear resistance.
所述股骨柄1具有插入股骨髓腔所需的生理弯曲度，其近端5和远端4具有不同的截面，近端5由近至远截面呈圆形逐渐过渡为椭圆形结构，远端4呈片状锥形结构，从而能够有效抗旋转，并易于插入股骨髓腔内。The femoral stem 1 has the required physiological curvature to be inserted into the femoral medullary cavity, and its proximal end 5 and distal end 4 have different cross sections. 4. It has a sheet-like conical structure, which can effectively resist rotation and is easy to insert into the femoral medullary cavity.
所述弹性连接件3为弹簧，形成弹簧的弹性金属丝排列紧密，其通过过盈配合分别与两端的股骨柄1和股骨球头2固定连接。The elastic connector 3 is a spring, and the elastic metal wires forming the spring are closely arranged, and are respectively fixedly connected with the femoral stem 1 and the femoral ball head 2 at both ends through interference fit.
所述弹性连接件3具有人工髋关节假体所需的承重能力，并能够进行任意方向弯曲，其弯曲角度可偏离轴向20－40度。The elastic connector 3 has the load-bearing capacity required by the artificial hip joint prosthesis, and can be bent in any direction, and its bending angle can deviate from the axial direction by 20-40 degrees.
所述股骨柄1延伸端的细段与股骨柄由同一材料一体成形，所述股骨球头2与其上的柱状突起6也是同一材料一体成形，从而使得整体结构更加简单、耐用，制作安装更加方便，植入后更加稳定。The thin section of the extension end of the femoral stem 1 and the femoral stem are integrally formed of the same material, and the femoral ball head 2 and the columnar protrusion 6 on it are also integrally formed of the same material, so that the overall structure is simpler and more durable, and the fabrication and installation are more convenient. It is more stable after implantation.
实施例2：Example 2:
如图1所示，本发明的人工髋关节假体大部分结构与实施例1相同，不同的是，本实施例中所述弹性连接件3为筒状弹性金属，其中空结构既能节约材料又能保证足够的弹性需要，并通过过盈配合分别与两端的股骨柄1和股骨球头2固定连接。另外，该弹性连接件3也可具备锁定机构，在靠近端部处设置2－3个向内的突起，并在股骨柄1和股骨球头2相对应的连接位置设置2－3个向内的凹槽，以与弹性连接件3上的突起配合锁定。弹性连接件3也可以通过卡接、焊接等连接方式进行固定连接。As shown in Figure 1, most of the structure of the artificial hip joint prosthesis of the present invention is the same as that of Embodiment 1, the difference is that the elastic connector 3 in this embodiment is a cylindrical elastic metal, and its hollow structure can save materials. It can also ensure sufficient elasticity, and is fixedly connected with the femoral stem 1 and the femoral ball head 2 at both ends through interference fit. In addition, the elastic connector 3 can also be equipped with a locking mechanism, and 2-3 inward protrusions are provided near the end, and 2-3 inward protrusions are provided at the corresponding connecting positions of the femoral stem 1 and the femoral ball head 2 . The groove is used to lock with the protrusion on the elastic connector 3. The elastic connecting member 3 can also be fixedly connected by clamping, welding and other connection methods.
实施例3：Example 3:
本发明还提供将如前所述的人工髋关节假体植入人体的置换装置，如图3所示，该置换装置具有操纵杆12、导向伸缩杆13、髋臼杯连接器14、套筒15和髋臼杯敲击杆16，操纵杆12的近端具有固定连接的把手17，远端连接有髋臼杯连接器14，把手下方固定连接一导向伸缩杆13，导向伸缩杆的另一端设置有套筒15，套筒用来插入髋臼杯敲击杆16，导向伸缩杆13具有一定弹性和支撑性，可进行各方向弯曲、拉伸和缩短，从而根据需要调节套筒15与髋臼杯连接器14间的距离，并使两者对准以利于安装，安装时需事先调整好导向伸缩杆13的距离和角度，将髋臼杯定位后使用髋臼杯敲击杆16迅速敲实固定，随后移除髋臼杯敲击杆16和整个置换装置。The present invention also provides a replacement device for implanting the aforementioned artificial hip joint prosthesis into the human body. 15 and the acetabular cup percussion rod 16, the proximal end of the joystick 12 has a fixedly connected handle 17, the far end is connected with the acetabular cup connector 14, and a guiding telescopic rod 13 is fixedly connected below the handle, leading to the other end of the telescopic rod A sleeve 15 is provided, and the sleeve is used to insert the acetabular cup percussion rod 16. The guiding telescopic rod 13 has certain elasticity and support, and can be bent, stretched and shortened in all directions, so that the sleeve 15 can be adjusted according to the needs of the hip. The distance between the acetabular cup connectors 14 should be aligned to facilitate installation. During installation, the distance and angle of the guide telescopic rod 13 must be adjusted in advance. After solid fixation, the acetabular cup striker 16 and the entire replacement device are subsequently removed.
所述导向伸缩杆13为弹性金属材料或PVC材料制作而成，杆体为空心管状结构，呈褶皱状压叠形式以在外力作用下利于伸缩，而在自然状态下不变性不伸缩，呈现金属或PVC的固有强度，从而能够承受髋臼杯敲击杆16的重量和压力。The guide telescopic rod 13 is made of elastic metal material or PVC material, and the rod body is a hollow tubular structure, which is folded and folded to facilitate expansion and contraction under the action of external force, but does not expand and contract in the natural state, showing metal or Due to the inherent strength of PVC, it can bear the weight and pressure of the acetabular cup knocking rod 16.
所述髋臼杯敲击杆16穿过套筒15，一端与髋臼杯连接器14相连，另一端具有方便敲击的柄部18，髋臼杯敲击杆16为硬质金属材料制作而成，为中空管状结构，管壁厚0.5－2mm，所述金属材料可为铝合金、钛合金、不锈钢等，需满足轻盈、结实耐用等特点。The acetabular cup knocking rod 16 passes through the sleeve 15, and one end is connected with the acetabular cup connector 14, and the other end has a handle 18 for convenient knocking. The acetabular cup knocking rod 16 is made of hard metal material. It is a hollow tubular structure with a wall thickness of 0.5-2mm. The metal material can be aluminum alloy, titanium alloy, stainless steel, etc., and it needs to meet the characteristics of lightness, strength and durability.
所述髋臼杯连接器14与操纵杆12的远端活动卡接，并可在适当范围内借用外力调整相对角度，角度调整好后自动锁定，在外力作用下方可再次进行调整。The acetabular cup connector 14 is engaged with the distal end of the joystick 12, and the relative angle can be adjusted by external force within an appropriate range. After the angle is adjusted, it is automatically locked, and can be adjusted again under the action of external force.
本发明由于在股骨柄和股骨球头之间采用了弹性连接件3，并在球状体7和髋臼杯8接触面上采用了高耐磨性碳涂层10，从而使得人工髋关节假体调节灵活、能满足各方向活动需求，且相关接触面耐磨性高，更符合髋关节部位的生理需求，并能够避免因中途翻修而造成的二次手术风险，使用更安全；同时，还提供了一种具有操纵杆12和导向伸缩杆13的人工髋关节假体置换装置，其能够减小手术创伤，使植入更安全。The present invention adopts the elastic connector 3 between the femoral stem and the femoral ball head, and adopts a high wear-resistant carbon coating 10 on the contact surface of the spherical body 7 and the acetabular cup 8, thereby making the artificial hip joint prosthesis It is flexible to adjust and can meet the needs of activities in all directions, and the relevant contact surface has high wear resistance, which is more in line with the physiological needs of the hip joint, and can avoid the risk of secondary surgery caused by midway revision, and is safer to use; at the same time, it also provides An artificial hip joint prosthesis replacement device with a manipulation rod 12 and a guiding telescopic rod 13 is provided, which can reduce surgical trauma and make implantation safer.
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structures or equivalent transformations made by using the contents of the description of the present invention, or directly or indirectly used in other related technical fields, are the same as The theory is included in the patent protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710787178.9ACN107440821B (en) | 2017-09-04 | 2017-09-04 | Artificial hip joint |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710787178.9ACN107440821B (en) | 2017-09-04 | 2017-09-04 | Artificial hip joint |
| Publication Number | Publication Date |
|---|---|
| CN107440821Atrue CN107440821A (en) | 2017-12-08 |
| CN107440821B CN107440821B (en) | 2019-06-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710787178.9AExpired - Fee RelatedCN107440821B (en) | 2017-09-04 | 2017-09-04 | Artificial hip joint |
| Country | Link |
|---|---|
| CN (1) | CN107440821B (en) |
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| CN108836577A (en)* | 2018-07-24 | 2018-11-20 | 北京安颂科技有限公司 | Acetabular component and artificial hip joint |
| CN112741715A (en)* | 2021-01-18 | 2021-05-04 | 吉林大学 | Metal 3D prints customized sleeve matched stack formula femoral intramedullary needle prosthesis |
| CN112998914A (en)* | 2021-02-22 | 2021-06-22 | 佳木斯大学 | Artificial hip joint |
| CN113081401A (en)* | 2019-12-23 | 2021-07-09 | 澳特拉斯(北京)科技有限公司 | Flexible hip joint handle and flexible hip joint prosthesis adopting same |
| CN113397766A (en)* | 2021-06-17 | 2021-09-17 | 嘉思特华剑医疗器材(天津)有限公司 | Bionic surface hip joint prosthesis with high long-term stability |
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| US5507818A (en)* | 1994-06-30 | 1996-04-16 | Mclaughlin; John A. | Multipolar joint endoprosthesis |
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| CB03 | Change of inventor or designer information | Inventor after:Zhang Yan Inventor after:Chang Liang Inventor after:Lv Guangchao Inventor after:Ding Pu Inventor after:Liu Kuanhao Inventor after:Fan Yanfeng Inventor after:Ding Yu Inventor before:Ding Pu Inventor before:Liu Kuanhao Inventor before:Fan Yanfeng Inventor before:Ding Yu | |
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| TA01 | Transfer of patent application right | Effective date of registration:20190530 Address after:130000 No. 1 Xinmin Street, Changchun City, Jilin Province Applicant after:The First Hospital of Jilin University Address before:450063 No. 123 Lianyun Road, Erqi District, Zhengzhou City, Henan Province Applicant before:Huanghe S & T College | |
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