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公开(公告)号：US5176710A
公开(公告)日：1993-01-05
申请号：US873631
申请日：1992-04-20
摘要： An orthopaedic device designed to replace an articulating surface in a joint is provided. The device has a relatively low stiffness factor and is capable of applying normal physiological load onto the underlying bone. A low stiffness factor is achieved by a relatively thin device made from materials that have a low bulk modulus of elasticity. The device is provided with curvature to minimize bending stress in the device so that the device has sufficient mechanical strength to prevent stress induced failure. A tibial component made in accordance with this invention is also provided.
摘要翻译： 提供了一种设计用于替代关节中的关节表面的整形外科装置。 该装置具有相对较低的刚度因子，并能够将正常的生理负荷施加到下面的骨骼上。 通过由具有低体积弹性模量的材料制成的相对薄的装置来实现低刚度系数。 该装置具有弯曲以最小化装置中的弯曲应力，使得该装置具有足够的机械强度以防止应力引起的故障。 还提供了根据本发明制造的胫骨部件。
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公开(公告)号：US5108398A
公开(公告)日：1992-04-28
申请号：US598920
申请日：1990-10-16
CPC分类号： A61B17/1725 , A61B17/72 , A61B17/1764
摘要： An orthopaedic surgical implant apparatus includes an elongated intramedullary rod assembly 10 for use in uniting a pair of bone segments wherein each of the bone segments includes a medullary cavity. The elongated intramedullary rod assembly 10 defines a central longitudinal axis when assembled and includes first and second points of attachment 26, 48, the rod assembly 10 being adapted to be positioned within the medullary cavities of the bone segments and secured to the first bond segment at the first point of attachment 26 and to the second bone segment at the second point of attachment 48. Structure 18, 52 is provided for shortening the predetermined distance between the first and second points of attachment 26, 48 of the rod assembly in the direction of the longitudinal axis after the rod assembly has been connected to the first and second bone segments so that the first and second bone segments are brought into contact with and press against one another. A method of implanting the apparatus is also disclosed.
摘要翻译： 矫形外科手术植入装置包括细长的髓内杆组件10，用于将一对骨段联合起来，其中每个骨段包括髓腔。 细长的髓内杆组件10在组装时限定中心纵向轴线，并且包括第一和第二连接点26,48，杆组件10适于定位在骨段的髓腔内并且固定到第一粘结段 第一附接点26和第二附接点48处的第二骨段。结构18,52用于缩短杆组件的第一和第二连接点26,48之间的预定距离， 杆组件之后的纵向轴线已经连接到第一和第二骨段，使得第一和第二骨段彼此接触并彼此压靠。 还公开了一种植入该装置的方法。
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公开(公告)号：US20080021568A1
公开(公告)日：2008-01-24
申请号：US11483313
申请日：2006-07-07
IPC分类号： A61F2/34
CPC分类号： A61F2/34 , A61B17/86 , A61F2/30734 , A61F2/30767 , A61F2/4609 , A61F2/4637 , A61F2002/30172 , A61F2002/30326 , A61F2002/30329 , A61F2002/30378 , A61F2002/30387 , A61F2002/30395 , A61F2002/30401 , A61F2002/30476 , A61F2002/30538 , A61F2002/30604 , A61F2002/30736 , A61F2002/30785 , A61F2002/30787 , A61F2002/30794 , A61F2002/30823 , A61F2002/3401 , A61F2002/3403 , A61F2002/3482 , A61F2220/0025 , A61F2220/0033 , A61F2230/0052 , A61F2250/0006 , A61F2250/0037 , A61F2310/00011
摘要： A modular prosthetic acetabular cup for use in restorative hip replacement has an augment which can be attached to an acetabular cup outer shell to provide an acetabular cup with a cross section of a desired configuration. The augment can be attached to the acetabular cup by a coupling element having an outer dovetail portion which slidably engages a groove formed within the augment preferably open to at least a first end thereof. The inner end of the coupling element can engage screw holes of the acetabular cup. The groove of the augment further includes a second end having a gradually increasing distance from the outer surface of the shell and the inner surface of the augment on moving towards the second end of the augment.
摘要翻译： 用于修复性髋关节置换的模块化假体髋臼杯具有可以附接到髋臼杯外壳以提供具有所需构造的横截面的髋臼杯的增加件。 增量可以通过具有外部燕尾部分的联接元件附接到髋臼杯，所述外部燕尾部分可滑动地接合形成在所述增大部内的凹槽，优选地至少开放至其第一端。 联接元件的内端可接合髋臼杯的螺孔。 增量的凹槽还包括第二端，其具有从外壳的外表面逐渐增加的距离，并且增量的内表面朝向增量的第二端移动。
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公开(公告)号：US07192449B1
公开(公告)日：2007-03-20
申请号：US09239870
申请日：1999-01-29
IPC分类号： A61F2/32
CPC分类号： A61F2/34 , A61F2/30767 , A61F2/32 , A61F2002/2825 , A61F2002/2828 , A61F2002/30331 , A61F2002/30354 , A61F2002/30367 , A61F2002/30403 , A61F2002/30405 , A61F2002/305 , A61F2002/30504 , A61F2002/30598 , A61F2002/3079 , A61F2002/30822 , A61F2002/30881 , A61F2002/3233 , A61F2002/3241 , A61F2002/3283 , A61F2002/3291 , A61F2002/3403 , A61F2002/3411 , A61F2002/347 , A61F2002/3493 , A61F2220/0025 , A61F2220/0033 , A61F2310/00011
摘要： A hip prosthesis (20) having a shell (22), liner (24), and retainer ring (26) is utilized for hip arthroplasty. The liner (24) fits inside the shell (22), which is attached to a patient's pelvis, and the retainer ring (26) engages a terminal liner margin (54) to inhibit expansion of and decrease the size of a restricted liner opening (72) defined by the liner margin (54). By inhibiting expansion of the liner opening (72), the ball (92) of a patient's femur (90) is securely held in the liner (24). In one embodiment, the liner (98) is inhibited from rotation relative to the shell (96) by a plurality of protrusions (106) which mate with recesses (102) in the shell (96). In that embodiment, the liner (98) is provided with catch lips (108) to hold the liner (98) in the shell (96) and a positioning flange (110) which operates to form a relief gap (120) between the shell (96) and the liner (98). In another embodiment, the retainer ring comprises an attachment portion (128) and a retainer portion (130) with a threaded connection (132) between the attachment portion (128) and the retainer portion (130).
摘要翻译： 具有壳体（22），衬垫（24）和保持环（26）的髋关节假体（20）用于髋关节置换术。 衬垫（24）安装在壳体（22）内，壳体（22）附接到患者的骨盆，并且保持环（26）接合终端衬垫边缘（54），以阻止限制衬里开口的膨胀并减小限制衬套开口的尺寸 72）由衬垫边缘（54）限定。 通过抑制衬套开口（72）的膨胀，将患者股骨（90）的球（92）牢固地保持在衬套（24）中。 在一个实施例中，通过与壳体（96）中的凹部（102）配合的多个突起（106），衬垫（98）被禁止相对于壳体（96）旋转。 在该实施例中，衬套（98）设置有用于将衬套（98）保持在壳体（96）中的止动唇缘（108）和定位凸缘（110），所述定位凸缘（110）在壳体（102）之间形成释放间隙 （96）和衬套（98）。 在另一个实施例中，保持环包括在附接部分（128）和保持器部分（130）之间具有螺纹连接（132）的附接部分（128）和保持器部分（130）。
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