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44 条记录 (耗时 0.014 秒)

    Hip prosthesis
    41.
    发明授权
    Hip prosthesis 失效
    髋关节假体

    公开(公告)号：US5800558A

    公开(公告)日：1998-09-01

    申请号：US802256

    申请日：1997-02-19

    申请人： Gerard A. LaHaise, Sr.

    发明人： Gerard A. LaHaise, Sr.

    IPC分类号： A61B17/86 ,  A61F2/00 ,  A61F2/30 ,  A61F2/32 ,  A61F2/34 ,  A61F2/36 ,  A61F2/46

    CPC分类号： A61F2/32 ,  A61F2/3601 ,  A61B17/86 ,  A61F2/34 ,  A61F2002/30153 ,  A61F2002/30154 ,  A61F2002/302 ,  A61F2002/30212 ,  A61F2002/30247 ,  A61F2002/30354 ,  A61F2002/30377 ,  A61F2002/3038 ,  A61F2002/30434 ,  A61F2002/30438 ,  A61F2002/30563 ,  A61F2002/30574 ,  A61F2002/30644 ,  A61F2002/30685 ,  A61F2002/30729 ,  A61F2002/30731 ,  A61F2002/30774 ,  A61F2002/30785 ,  A61F2002/30789 ,  A61F2002/30794 ,  A61F2002/30975 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2002/365 ,  A61F2002/4635 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2230/0019 ,  A61F2230/0021 ,  A61F2230/0065 ,  A61F2230/0067 ,  A61F2230/0071

    摘要： A total hip joint replacement prosthesis achieves mechanical integrity and dynamic stability without requiring an axial cavity to be bored into the femur, minimizes interfacial friction to reduce the proliferation of wear generated particles and establishes secure fixation of all components to extend implant lifetime and improve implant performance. Interactive femoral and acetabular components engage a femoral shoulder and a pelvic acetabular cavity, respectively. The femoral component comprises medial and lateral clamps, which engage the femoral shoulder. The acetabular component is secured within pelvic acetabular cavity, having a ball that incorporates two sets of opposingly disposed roller bearings. A substantially cylindrical channel extends between the sets of roller bearings to receive a bearing shaft, which cooperates with the roller bearings to facilitate rotational movement between the acetabular component and the femoral component. A bolt secures a cuboidal member of the acetabular component within a cuboidal cavity of the femoral component, comprising the connection between the femoral and acetabular components of the hip prosthesis device. A protective retainer stabilizes the acetabular component. The modular nature of the components of the device allows a less traumatic surgical operation than devices incorporating a femoral stem component.

    摘要翻译： 全髋关节置换假体实现机械完整性和动态稳定性，而不需要将轴向空腔钻入股骨，最小化界面摩擦，减少磨损产生的颗粒的增殖，并建立所有部件的牢固固定以延长植入寿命并提高植入性能 。 交互性股骨和髋臼部分分别接合股骨肩和盆腔髋臼腔。 股骨部件包括接合股骨肩部的中间和外侧夹具。 髋臼部件被固定在盆腔髋臼腔内，具有包含两组相对设置的滚子轴承的球。 基本上圆柱形的通道在两组滚子轴承之间延伸以接收轴承轴，该轴承轴与滚子轴承配合以便于髋臼部件和股骨部件之间的旋转运动。 螺栓将髋臼部件的立方形部件固定在股骨部件的立方体腔内，包括髋关节假体装置的股骨和髋臼部件之间的连接。 保护保持器可稳定髋臼部件。 装置的组件的模块化性质允许比装有股骨干部件的装置更少的创伤外科手术。

    Prosthesis using biocompatible composite material
    43.
    发明授权
    Prosthesis using biocompatible composite material 失效
    假体使用生物相容性复合材料

    公开(公告)号：US5578086A

    公开(公告)日：1996-11-26

    申请号：US420436

    申请日：1995-04-10

    申请人： Anthony D. Prescott

    发明人： Anthony D. Prescott

    IPC分类号： A61B17/00 ,  A61B19/00 ,  A61F2/00 ,  A61F2/12 ,  A61F2/18 ,  A61F2/30 ,  A61F2/42 ,  A61L27/44 ,  A61L27/46 ,  A61F2/02 ,  A61F2/28

    CPC分类号： A61F2/30728 ,  A61B17/0057 ,  A61F2/0063 ,  A61F2/12 ,  A61F2/18 ,  A61F2/4241 ,  A61L27/44 ,  A61L27/46 ,  A61B2017/00659 ,  A61B2090/0816 ,  A61F2/186 ,  A61F2/30767 ,  A61F2/30965 ,  A61F2002/183 ,  A61F2002/2807 ,  A61F2002/30225 ,  A61F2002/3038 ,  A61F2002/30563 ,  A61F2002/30574 ,  A61F2002/30731 ,  A61F2002/30878 ,  A61F2002/30957 ,  A61F2002/4251 ,  A61F2220/0033 ,  A61F2230/0069 ,  A61F2310/00796

    摘要： A non-percutaneous prosthesis, reconstructive sheeting and composite material which exhibit excellent tissue adhesion, outstanding biocompatibility, moldability, trimability and flexibility are disclosed. The non-percutaneous prosthesis, reconstructive sheeting and composite material can be easily molded into various shapes, trimmed with a scalpel and deformed during prosthetic positioning. The non-percutaneous prothesis comprises a biocompatible composite material which is made of an elastomeric material and bio-active ceramic or glass particles and has a predetermined shape. The bio-active ceramic or glass particles are dispersed throughout a matrix of the elastomeric material having a predetermined shape, or the elastomeric material is formed to the predetermined shape and the bio-active ceramic or glass particles are coated on a surface of the elastomeric material. In another embodiment, the non-percutaneous prosthesis comprises a base material of predetermined shape and a layer of elastomeric material provided on the base material, wherein a layer of elastomeric material has distributed therein or provided thereon bio-active ceramic or glass particles. The elastomeric material is preferably one of silicone, polyurethane and its derivatives, hydrogel and C-Flex.RTM. and, more preferably, is silicone or hydrogel. The bio-active ceramic or glass particles are preferably made of hydroxylapatite. The reconstructive sheeting comprises a biocompatible composite material made of an elastomeric material and bio-active ceramic or glass particles. Also, the present invention provides a biocompatible composite material comprising hydrogel and particles of a bio-active ceramic or glass material. The particles are preferably dispersed throughout a matrix of hydrogel.

    摘要翻译： 公开了非经皮假体，重组片和复合材料，其表现出优异的组织粘附性，优异的生物相容性，成型性，修饰性和柔韧性。 非经皮假体，重建片材和复合材料可以容易地模制成各种形状，用手术刀修剪并在假肢定位期间变形。 非经皮假体包括由弹性体材料和生物活性陶瓷或玻璃颗粒制成且具有预定形状的生物相容性复合材料。 生物活性陶瓷或玻璃颗粒分散在具有预定形状的弹性体材料的基体中，或者将弹性体材料形成为预定形状，并将生物活性陶瓷或玻璃颗粒涂覆在弹性体材料的表面上 。 在另一个实施例中，非经皮假体包括预定形状的基底材料和设置在基底材料上的弹性体材料层，其中弹性体材料层分布在其中或在其上提供生物活性陶瓷或玻璃颗粒。 弹性体材料优选为有机硅，聚氨酯及其衍生物之一，水凝胶和C-Flex TM，更优选硅氧烷或水凝胶。 生物活性陶瓷或玻璃颗粒优选由羟基磷灰石制成。 重建片材包括由弹性体材料和生物活性陶瓷或玻璃颗粒制成的生物相容性复合材料。 此外，本发明提供了包含生物活性陶瓷或玻璃材料的水凝胶和颗粒的生物相容性复合材料。 颗粒优选分散在水凝胶的基体中。