Prosthetic knee
    31.
    发明授权
    Prosthetic knee 失效
    假腿膝盖

    公开(公告)号:US4224696A

    公开(公告)日:1980-09-30

    申请号:US940525

    申请日:1978-09-08

    CPC classification number: A61F2/3868

    Abstract: A prosthetic knee having as its component parts a femoral implant, a tibial implant, and a meniscal plate disposed between the implants. Knee flexion and extension is permitted by compoundly curved condyle surfaces of the femoral implant, which resemble corresponding surfaces of a natural knee, and correspondingly shaped convex bearing surfaces in the meniscal plate. All other motions of the prosthetic knee take place at the interface between the meniscal plate and tibial implant. This interface is defined by a continuous, concave, spherically shaped surface in the upwardly facing plateau of the tibial implant and a corresponding, continuous, convex spherical surface of the meniscal plate. The components are biased into mutual engagement along the cooperating concave and convex surfaces by the natural ligaments which surround the prosthetic knee. The continuous biased engagement of the cooperating convex and concave surfaces of the prosthetic knee assure its stability.

    Abstract translation: 作为其组成部分的假体膝部具有股骨植入物,胫骨植入物和设置在植入物之间的半月板。 股骨植入物的复合弯曲髁表面允许膝关节屈曲和伸展,其类似于自然膝盖的对应表面,以及半月板中相应形状的凸起的支承表面。 假膝关节的所有其他运动发生在半月板和胫骨植入物之间的界面处。 该界面由胫骨植入物的向上平台中的连续的,凹形的球形表面以及半月板的对应的连续的凸形球形表面限定。 组件通过围绕假肢膝盖的天然韧带被偏置成沿着协作的凹和凸表面相互接合。 辅助膝盖的协作的凸和凹表面的连续偏置接合确保了其稳定性。

    Knee prosthesis
    32.
    发明授权
    Knee prosthesis 失效
    膝关节假体

    公开(公告)号:US4568348A

    公开(公告)日:1986-02-04

    申请号:US474801

    申请日:1983-03-14

    CPC classification number: A61F2/3868 A61F2/3886

    Abstract: This invention relates to endo-prosthetic knee joint devices.A knee prosthesis according to the invention comprises a femoral component for attachment to the femur and having a bearing surface including a first inferior curved portion and a second posterior portion contiguous with and of relatively lesser curvature than said first portion, a tibial component for attachment to the tibia and having a concave bearing surface and a meniscal component to lie between the femoral and tibial components and having bearing surfaces complementary to said first portion of the bearing surface of the femoral component and to the bearing surface of the tibial component.

    Abstract translation: 本发明涉及内支架膝关节装置。 根据本发明的膝关节假体包括用于附接到股骨的股骨部件,并且具有包括与所述第一部分相邻并且具有比所述第一部分相对较小的曲率的第一下弯曲部分和第二后部部分的支承表面,胫骨部件,用于附接到 胫骨并且具有凹入的支承表面和半月板部件以位于股骨和胫骨部件之间并且具有与股骨部件的支承表面的所述第一部分和胫骨部件的支承表面互补的支承表面。

    Elbow replacement prosthesis
    33.
    发明授权
    Elbow replacement prosthesis 失效
    弯头置换假体

    公开(公告)号:US4378607A

    公开(公告)日:1983-04-05

    申请号:US210297

    申请日:1980-11-26

    Abstract: Prosthetic replacement of an elbow joint is accomplished using a humeral component having an articular surface comprising a concave surface in the coronal plane and a convex surface in the sagittal plane with such component being cemented along a superior U-slot to a surgically prepared humeral bone. The prosthesis also comprises an ulnar component having an articular surface defined by a convex surface in the coronal plane and a concave surface in the sagittal plane, its undersurface having a longitudinal arcuate keel and a dependent stem by which it is cemented to the surgically prepared ulnar bone. Optionally, the prosthesis may include a radial head component in the form of a dished button that can be cemented to the surgically prepared radial bone by a depending stem.

    Abstract translation: 肘关节的假体置换使用具有包括冠状平面中的凹面的关节表面的肱骨成分和矢状面中的凸形表面,其中这些部件沿着上U形槽粘结到手术制备的肱骨上。 假体还包括具有由冠状平面中的凸表面限定的关节表面和矢状平面中的凹表面的尺骨部件,其下表面具有纵向弓形龙骨和从属杆,通过该纵向骨架骨架将其胶合至外科手术准备的尺骨 骨。 可选地,假体可以包括碟形按钮形式的径向头部部件,所述径向头部部件可以通过固定的杆而被胶合到手术制备的径向骨骼上。

    Slide prosthesis for the knee joint
    34.
    发明授权
    Slide prosthesis for the knee joint 失效
    滑动假体用于膝关节

    公开(公告)号:US4355429A

    公开(公告)日:1982-10-26

    申请号:US114335

    申请日:1980-01-23

    CPC classification number: A61F2/38 A61F2002/3895

    Abstract: A slide prosthesis for the knee joint is provided to be secured free of cement, the tibia members, the femur members and the surface replacement for the knee cap having anchoring pins which are provided with a saw tooth-like or bone screw-shaped profile. The tibia and knee cap members are preferably made of carbon fibre-reinforced plastics material and the femur members of aluminium oxide ceramic material. In order to assist growth of the bone to the prosthesis members, the members are coated at the corresponding points with bio-active particles, such as apatite-containing glasses, apatite particles or dealbumined bone material.

    Abstract translation: 提供了一种用于膝关节的滑动假体,其被固定而没有水泥,胫骨构件,股骨构件以及具有固定销的膝盖帽的表面替换物,其具有锯齿形或骨螺纹形状。 胫骨和膝盖构件优选地由碳纤维增强塑料材料和氧化铝陶瓷材料的股骨构件制成。 为了帮助骨对假体构件的生长,使用生物活性颗粒(例如含磷灰石的玻璃,磷灰石颗粒或经骨化的骨材料)在相对应的位置涂覆构件。

    Joint prosthesis
    36.
    发明授权
    Joint prosthesis 失效
    关节假体

    公开(公告)号:US4352212A

    公开(公告)日:1982-10-05

    申请号:US161503

    申请日:1980-06-20

    Abstract: A novel joint prosthesis, particularly suitable as a metacarpophalangeal joint prosthesis, is disclosed comprising first and second intramedullary plugs adapted to be secured to the walls of the intramedullary canals of the two bones forming the joint, and first and second components each comprising a bearing portion and a stem slidably received in a longitudinal bore provided in each of said intramedullary plugs. Transmission of stresses to the bone-prosthesis fixation interfaces is substantially reduced as a result of the freedom of motion of the stems within these longitudinal bores. In a preferred embodiment, axial rotation of one, but only one, of said stems with respect to the intramedullary plug receiving it is prevented. Use of preferred configurations for the bearing portions of the two components provides an accurate reproduction of the movement and degrees of freedom of the natural metacarpophalangeal joint.

    Abstract translation: 公开了一种特别适合作为掌指关节假体的新型关节假体,其包括适于固定到形成关节的两个骨的髓内输送管的壁的第一和第二髓内塞,以及第一和第二部件,每个包括轴承部分 以及可滑动地容纳在设置在每个所述髓内塞中的纵向孔中的杆。 由于杆在这些纵向孔内运动的自由,所以对骨假体固定界面的应力传播大大减少。 在一个优选实施例中,防止了相对于接收它的髓内钉的一个但只有一个所述杆的轴向旋转。 对于两个部件的轴承部分使用优选的构造提供了自然掌指关节的运动和自由度的精确再现。

    Acetabular prosthesis
    37.
    发明授权
    Acetabular prosthesis 失效
    髋臼假体

    公开(公告)号:US4327449A

    公开(公告)日:1982-05-04

    申请号:US163311

    申请日:1980-06-26

    Applicant: John Charnley

    Inventor: John Charnley

    Abstract: An acetabular prosthesis comprises a body 41 of plastics material defining a part-spherical socket cavity 43 surrounded by a rim 44. A flange extends outwardly from the rim 44. At 48 it inclines from the rim 44 in the direction of the body 41 and at 49 it inclines from the rim in a direction away from the body 41, while lobes 46, 47 therebetween are correspondingly curved. This arrangement provides for a considerably increased area of bone in the acetabulum to be available as a cementing surface when the prosthesis is fitted into a reamed out hip acetabulum in the special circumstances of the invention which is that the axis of socket cavity 43 extends substantially transversely with no or little anteversion.

    Abstract translation: 髋臼假体包括塑料材料体41,其限定由边缘44围绕的部分球形插座空腔43.凸缘从边缘44向外延伸。在48处,它从边缘44在主体41的方向上倾斜并且在 它在远离主体41的方向上从边缘倾斜,而它们之间的波瓣46,47相应地弯曲。 这种布置提供了在本发明的特殊情况下,当将假体装配到扩张的髋关节髋臼中时,髋臼中骨的显​​着增加的面积可作为固定表面获得,其是插座腔43的轴线基本上横向延伸 没有或很少前倾。

    Prosthetic device
    39.
    发明授权
    Prosthetic device 失效
    假体装置

    公开(公告)号:US4285070A

    公开(公告)日:1981-08-25

    申请号:US160612

    申请日:1980-06-18

    CPC classification number: A61F2/38 A61F2/3877

    Abstract: A patella prosthesis having a plurality of bearing surfaces designed to provide low-friction interaction throughout the entire range of leg extension and flexure with a metal condylar replacement prosthesis is disclosed. The prosthesis provides a combination of a reinforced patella surface and a femoral prosthetic surface having both a prolonged anterior flange and a central opening for the passage of the cruciate ligaments.

    Abstract translation: 公开了一种具有多个轴承表面的髌骨假体,其被设计成通过金属髁更换假体在腿部延伸和弯曲的整个范围内提供低摩擦相互作用。 假体提供了增强的髌骨表面和股骨假体表面的组合,其具有延长的前凸缘和用于十字韧带通过的中心开口。

    Endoprosthesis composed of a socket and a head receivable and lockable
in the socket
    40.
    发明授权
    Endoprosthesis composed of a socket and a head receivable and lockable in the socket 失效
    内置假体由一个插座和一个可接收的头部组成,可锁定在插座中

    公开(公告)号:US4279041A

    公开(公告)日:1981-07-21

    申请号:US54895

    申请日:1979-07-05

    Abstract: An endoprosthesis composed of a first member constituting a prosthesis socket provided interiorly with a chamber presenting a receiving surface, a second member constituting a prosthesis head arranged to be inserted into the socket to be received in the chamber and presenting a surface engaging the receiving surface when the head is received in the chamber, and a shaft firmly connected to the head. The head is arranged to be inserted into the socket by insertion movement, relative to the socket, from an insertion position to an inserted position, and to be rotated, relative to the socket, between the inserted position and an installed state. The socket presents a boundary edge formed to present at least one corner which encloses the head when the head is in the installed state and which defines a deformation, and the surface of the head is provided with a groove extending in the direction toward the shaft and defining a deformation, the depth of the groove being approximately equal to the constriction presented to the insertion opening by the corner.

    Abstract translation: 由构成假体插座的第一构件构成的内置假体插座,其内部设置有呈现接收表面的腔室,构成假体头部的第二构件,其布置成插入到所述插座中以被容纳在所述腔室中,并且呈现与所述接收表面接合的表面, 头部被容纳在腔室中,并且轴被牢固地连接到头部。 头部被布置成通过相对于插座从插入位置插入到插入位置并相对于插座在插入位置和安装状态之间插入地插入到插座中。 所述插座呈现出边界边缘,其形成为当头部处于安装状态时呈现包围头部的至少一个角部,并且限定了变形,并且头部表面设置有沿着朝向轴的方向延伸的凹槽, 限定变形,凹槽的深度近似等于由拐角呈现给插入开口的收缩部。

Patent Agency Ranking