公开(公告)号：US4892550A

公开(公告)日：1990-01-09

申请号：US814690

申请日：1985-12-30

申请人： Donald L. Huebsch

发明人： Donald L. Huebsch

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

CPC分类号： A61B17/8822 ,  A61F2/36 ,  A61F2/4637 ,  A61B17/7098 ,  A61B17/8808 ,  A61B17/8827 ,  A61F2/30734 ,  A61F2/30744 ,  A61F2/30907 ,  A61F2/32 ,  A61F2/34 ,  A61F2002/30069 ,  A61F2002/30332 ,  A61F2002/30405 ,  A61F2002/30433 ,  A61F2002/30512 ,  A61F2002/30515 ,  A61F2002/30563 ,  A61F2002/30581 ,  A61F2002/30583 ,  A61F2002/30584 ,  A61F2002/30589 ,  A61F2002/30594 ,  A61F2002/30604 ,  A61F2002/30772 ,  A61F2002/30774 ,  A61F2002/30886 ,  A61F2002/30917 ,  A61F2002/30975 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/3649 ,  A61F2002/365 ,  A61F2002/3652 ,  A61F2002/3684 ,  A61F2002/3696 ,  A61F2002/4619 ,  A61F2002/4631 ,  A61F2002/4641 ,  A61F2002/465 ,  A61F2002/467 ,  A61F2210/0085 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2310/00011

摘要： Disclosed is an endoprosthesis device and method of installing the same immovably in a medullary canal under a constant predetermined uniformly distributed pressure. The rigid prosthesis stem is typically embraced by an elastomeric element designed for continuous pressurization into compressed resilient anchorage with the medullary canal surface. The tubular elastomeric element can be pressurized in various ways such as by a captive gas, or by a fluent material until this material takes a set, or by a combination of pressurized gas and settable fluent material. When a captive pressurized gas is used, along or with a settable material, it provides a major portion of the elastic energy anchoring the prosthesis immovably in place; and when a settable pressurizing medium is used, the elastic energy is stored in the compressed thick elastomer. The constant elastic energy fosters bone growth to augment prosthesis anchorage. Permanent anchorage is achieved virtually instantly following alignment and pressurization of the prosthesis. When a settable material is used, the stem may include a withdrawable wedge to facilitate separation of the remainder of the prosthesis from the medullary canal. The expandable/compressible elastic component readily compensates for irregularity in the canal wall and requires a minimum of preliminary preparation of its surface.

摘要翻译： 公开了一种内固定装置和方法，其以恒定的预定均匀分布的压力将其固定地安装在髓管中。 刚性假体柄通常被设计成用于连续加压到具有髓管表面的压缩弹性锚固中的弹性体元件包围。 管状弹性体元件可以以各种方式加压，例如通过捕获气体，或通过流动材料加压，直到该材料成形为止，或通过加压气体和可调节流动材料的组合。 当使用捕获的加压气体，沿着或与可固化材料一起使用时，它提供了将假体固定在适当位置的弹性能量的主要部分; 并且当使用可设定的加压介质时，弹性能量被存储在压缩的厚弹性体中。 恒定的弹性能量促进骨生长以增加假体锚固。 在假体的对准和加压之后，实际上立即实现永久锚定。 当使用可固化材料时，杆可以包括可抽出的楔子，以便于将假体的其余部分与髓管分开。 可膨胀/可压缩的弹性部件容易补偿管壁中的不规则性，并且需要对其表面进行最少的初步准备。

公开(公告)号：US4888022A

公开(公告)日：1989-12-19

申请号：US124983

申请日：1987-11-24

申请人： Donald L. Huebsch

发明人： Donald L. Huebsch

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

CPC分类号： A61B17/8822 ,  A61F2/36 ,  A61F2/4637 ,  A61B17/7098 ,  A61B17/8808 ,  A61B17/8827 ,  A61F2/30734 ,  A61F2/30744 ,  A61F2/30907 ,  A61F2/32 ,  A61F2/34 ,  A61F2002/30069 ,  A61F2002/30332 ,  A61F2002/30405 ,  A61F2002/30433 ,  A61F2002/30512 ,  A61F2002/30515 ,  A61F2002/30563 ,  A61F2002/30583 ,  A61F2002/30584 ,  A61F2002/30589 ,  A61F2002/30594 ,  A61F2002/30604 ,  A61F2002/30772 ,  A61F2002/30774 ,  A61F2002/30886 ,  A61F2002/30917 ,  A61F2002/30975 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/3649 ,  A61F2002/365 ,  A61F2002/3652 ,  A61F2002/3684 ,  A61F2002/3696 ,  A61F2002/4619 ,  A61F2002/4631 ,  A61F2002/4641 ,  A61F2002/465 ,  A61F2002/467 ,  A61F2210/0085 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2310/00011

摘要： An endoprosthesis is immovably anchored in a medullary canal under a constant predetermined uniformly distributed pressure. The rigid prosthesis stem is typically embraced by an elastomeric element designed for continuous pressurization into compressed resilient anchorage with the medullary canal surface. The tubular elastomeric element can be pressurized in various ways such as by a captive gas, or by a fluent material until this material takes a set, or by a combination of pressurized gas and settable fluent material. When a captive pressurized gas is used, alone or with a settable fluent material, it provides a major portion of the elastic energy anchoring the prosthesis immovably in place; and when a settable pressurizing medium is used, the elastic energy is stored in the compressed thick elastomer. The constant elastic energy fosters bone growth to augment prosthesis anchorage. Permanent anchorage is achieved virtually instantly following alignment and pressurization of the prosthesis. The expandable/compressible elastic component readily compensates for irregularity in the canal wall and requires a minimum of preliminary preparation of its surface. The bladder can have spaced apart porous-surfaced plates bonded to the outer surface of the bladder for being expanded into contact with a cavity in the cancellous bone portion of the femur to enhance bony ingrowth during use.

摘要翻译： 内固定体在恒定的预定均匀分布的压力下不可移动地锚定在髓质管中。 刚性假体柄通常被设计成用于连续加压到具有髓管表面的压缩弹性锚固中的弹性体元件包围。 管状弹性体元件可以以各种方式加压，例如通过捕获气体，或通过流动材料加压，直到该材料成形为止，或通过加压气体和可调节流动材料的组合。 当使用捕获的加压气体时，单独使用或具有可流动的流动材料，它提供将假体固定在适当位置的弹性能量的主要部分; 并且当使用可设定的加压介质时，弹性能量被存储在压缩的厚弹性体中。 恒定的弹性能量促进骨生长以增加假体锚固。 在假体的对准和加压之后，实际上立即实现永久锚定。 可膨胀/可压缩的弹性部件容易补偿管壁中的不规则性，并且需要对其表面进行最少的初步准备。 膀胱可以具有结合到囊的外表面的间隔开的多孔表面的板，以膨胀成与股骨的松质骨部分中的空腔接触，以增强使用期间的骨向内生长。

公开(公告)号：US06355069B1

公开(公告)日：2002-03-12

申请号：US09137249

申请日：1998-08-20

申请人： Alfred F. DeCarlo, Jr. ,  Hugh U. Cameron

发明人： Alfred F. DeCarlo, Jr. ,  Hugh U. Cameron

IPC分类号： A61F236

CPC分类号： A61F2/3662 ,  A61F2/36 ,  A61F2/3676 ,  A61F2002/30113 ,  A61F2002/30143 ,  A61F2002/30235 ,  A61F2002/30324 ,  A61F2002/30332 ,  A61F2002/30387 ,  A61F2002/304 ,  A61F2002/30403 ,  A61F2002/30405 ,  A61F2002/3051 ,  A61F2002/30512 ,  A61F2002/30579 ,  A61F2002/30774 ,  A61F2002/3079 ,  A61F2002/30794 ,  A61F2002/30795 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/3631 ,  A61F2002/365 ,  A61F2002/3694 ,  A61F2002/3696 ,  A61F2002/4638 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2230/0006 ,  A61F2230/0017 ,  A61F2230/0069 ,  A61F2250/0036

摘要： A bone prosthesis is provided which includes an implantable elongate stem member having a bore extending therethrough. The stem member has a proximal end and a distal end with at least one slot formed in the distal end. The slot extends along at least a portion of the stem member, in a longitudinal direction, from the distal end towards the proximal end to form at least two tines at the distal end of the stem. A bolt member is disposed within the bore of the stem member and has a proximal end and a distal end, wherein at least a portion of the bolt member proximate the distal end is threaded. An expander nut is disposed between the tines and is threadably matable with the distal end of the bolt member such that rotation of the bolt member in a first direction is effective to draw the expander nut towards the proximal end of the stem member to separate the tines at the distal end of the stem member.

摘要翻译： 提供了一种骨假体，其包括具有延伸穿过其中的孔的可植入细长杆构件。 杆构件具有近端和远端，在远端形成有至少一个槽。 所述狭槽沿所述杆构件的至少一部分在纵向方向上从所述远端朝向所述近端延伸，以在所述杆的远端处形成至少两个尖齿。 螺栓构件设置在杆构件的孔内并且具有近端和远端，其中靠近远端的螺栓构件的至少一部分是螺纹的。 膨胀螺母设置在齿之间并且与螺栓构件的远端螺纹地配合，使得螺栓构件在第一方向上的旋转有效地将膨胀螺母拉向杆构件的近端以分离齿 在杆构件的远端处。

公开(公告)号：US5858020A

公开(公告)日：1999-01-12

申请号：US567650

申请日：1995-12-05

申请人： Wesley D. Johnson ,  Richard C. Emery

发明人： Wesley D. Johnson ,  Richard C. Emery

IPC分类号： H04W8/24 ,  A61B17/28 ,  A61F2/00 ,  A61F2/30 ,  A61F2/36 ,  A61F2/38 ,  A61F2/46 ,  H04W68/00

CPC分类号： A61F2/389 ,  A61F2/36 ,  A61F2/4637 ,  A61B2017/2837 ,  A61F2/367 ,  A61F2/4607 ,  A61F2002/30093 ,  A61F2002/3021 ,  A61F2002/30217 ,  A61F2002/30235 ,  A61F2002/30329 ,  A61F2002/30332 ,  A61F2002/30354 ,  A61F2002/30425 ,  A61F2002/30474 ,  A61F2002/30484 ,  A61F2002/30574 ,  A61F2002/30596 ,  A61F2002/30604 ,  A61F2002/30616 ,  A61F2002/30738 ,  A61F2002/30795 ,  A61F2002/3629 ,  A61F2002/3647 ,  A61F2002/365 ,  A61F2002/3652 ,  A61F2002/3656 ,  A61F2002/366 ,  A61F2002/3694 ,  A61F2002/3696 ,  A61F2002/4623 ,  A61F2002/4693 ,  A61F2002/4694 ,  A61F2210/0019 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2230/0067 ,  A61F2230/0069 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029

摘要： A kit for producing a modular prosthesis is provided, the kit including a first prosthesis member having a cavity such as a bore formed in it, and a clamp releasably clamped in the cavity. The clamp, which may be a rod having an axial bore through a portion of its length, is subjected to an external stimulus such as a stretching force to cause the diameter of the clamp to be reduced enough so that the clamp is received in the cavity. As the stimulus is withdrawn, the clamp returns toward its initial configuration, and in so doing, expands against the walls of the cavity. A second prosthesis member may be configured to receive a portion of the first member such that expansion of the clamp in the cavity of the first member concurrently causes that member to expand into contact with the second member to clamp the members together.

摘要翻译： 提供了一种用于生产模块化假体的套件，该套件包括具有诸如其中形成的孔的空腔的第一假体构件和可释放地夹紧在空腔中的夹具。 可以是具有穿过其长度的一部分的轴向孔的杆的夹具经受诸如拉伸力的外部刺激，使得夹具的直径足够减小，使得夹具容纳在腔中 。 随着刺激被撤回，夹具返回到其初始构型，并且在这样做时，该孔相对于腔的壁膨胀。 第二假体构件可以构造成容纳第一构件的一部分，使得夹具在第一构件的空腔中的膨胀同时地使构件膨胀成与第二构件接触以将构件夹紧在一起。

公开(公告)号：US07572297B2

公开(公告)日：2009-08-11

申请号：US10595291

申请日：2004-10-08

申请人： Edward J. Cheal ,  George B. Cipolletti

发明人： Edward J. Cheal ,  George B. Cipolletti

IPC分类号： A61F2/32

CPC分类号： A61F2/3609 ,  A61F2/36 ,  A61F2/3662 ,  A61F2/367 ,  A61F2/3672 ,  A61F2/3676 ,  A61F2/4607 ,  A61F2002/30112 ,  A61F2002/30113 ,  A61F2002/30125 ,  A61F2002/30146 ,  A61F2002/30153 ,  A61F2002/30332 ,  A61F2002/30336 ,  A61F2002/30349 ,  A61F2002/30357 ,  A61F2002/30382 ,  A61F2002/30405 ,  A61F2002/30433 ,  A61F2002/30434 ,  A61F2002/30449 ,  A61F2002/30604 ,  A61F2002/30616 ,  A61F2002/30774 ,  A61F2002/30797 ,  A61F2002/30808 ,  A61F2002/30827 ,  A61F2002/30879 ,  A61F2002/30891 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/365 ,  A61F2002/3652 ,  A61F2002/3656 ,  A61F2002/3696 ,  A61F2002/4619 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2220/005 ,  A61F2230/0004 ,  A61F2230/0006 ,  A61F2230/0008 ,  A61F2230/0017 ,  A61F2230/0019 ,  A61F2310/00011 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00179

摘要： A joint prosthesis may include a modular head member, a modular body member, and a stem member. The stem member may be so tapered as to be engageable by taper press-fit into the medullary cavity of a bone. The body member may be engageable in the stem member by friction-tight press-fit at a zone of diametrical interference.

摘要翻译： 关节假体可以包括模块化头部构件，模块化主体构件和杆构件。 杆构件可以是锥形的，以便通过锥形压配合到骨的髓腔中可接合。 主体构件可以通过在径向干涉区域的摩擦密封压配合而接合在杆构件中。

公开(公告)号：US06306174B1

公开(公告)日：2001-10-23

申请号：US09464580

申请日：1999-12-16

申请人： Graham Allan Gie ,  Robin Sydney Mackwood Ling ,  John Andrew Storer ,  Andrew John Timperley

发明人： Graham Allan Gie ,  Robin Sydney Mackwood Ling ,  John Andrew Storer ,  Andrew John Timperley

IPC分类号： A61F236

CPC分类号： A61F2/3609 ,  A61F2/3662 ,  A61F2/367 ,  A61F2002/30332 ,  A61F2002/30344 ,  A61F2002/30354 ,  A61F2002/30405 ,  A61F2002/30433 ,  A61F2002/30492 ,  A61F2002/30507 ,  A61F2002/30512 ,  A61F2002/30517 ,  A61F2002/30594 ,  A61F2002/30604 ,  A61F2002/30774 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30797 ,  A61F2002/30808 ,  A61F2002/3081 ,  A61F2002/30822 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/365 ,  A61F2002/3652 ,  A61F2002/3656 ,  A61F2002/366 ,  A61F2002/4631 ,  A61F2002/4638 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041

摘要： A femoral component of a replacement hip joint is provided which has a stem for fixing in cement in a medullary cavity by cement and having a separate proximal component provided with a neck for a ball head. An attachment system is provided for securing the proximal component to the stem which allows selection of an infinite number of angularly displaced positions about a proximal/distal axis, and adapted to allow fixation of the two parts after insertion of the stem into the prepared medullary cavity and without causing torsional loads on the stem. The stem extends proximally to the level of the bone cut which allows the proximal component to rotate after the stem is implanted. If an infinite number of angularly displaced positions is not required, then a Vernier coupling system with a large member of positions can be used.

摘要翻译： 提供了一种替代髋关节的股骨部件，其具有用于通过水泥固定在骨髓腔中的水泥中的杆，并且具有设置有用于球头的颈部的单独的近侧部件。 提供附接系统用于将近端部件固定到杆上，其允许围绕近端/远端轴线选择无数个角位移位置，并且适于在将杆插入制备的髓腔之后允许固定两部分 并且不会在杆上引起扭转载荷。 杆向近端延伸到骨切口的水平面，这允许近端部件在柄被植入之后旋转。 如果不需要无限数量的角位移位置，则可以使用具有大的位置成员的游标耦合系统。

公开(公告)号：US06264699B1

公开(公告)日：2001-07-24

申请号：US09197854

申请日：1998-11-23

申请人： Douglas G. Noiles ,  Alfred F. DeCarlo, Jr.

发明人： Douglas G. Noiles ,  Alfred F. DeCarlo, Jr.

IPC分类号： A61F232

CPC分类号： A61F2/3859 ,  A61F2/30734 ,  A61F2/30767 ,  A61F2/36 ,  A61F2/3609 ,  A61F2/3662 ,  A61F2/367 ,  A61F2/3676 ,  A61F2/40 ,  A61F2/4059 ,  A61F2002/30332 ,  A61F2002/30342 ,  A61F2002/30354 ,  A61F2002/30405 ,  A61F2002/30434 ,  A61F2002/30438 ,  A61F2002/30512 ,  A61F2002/30604 ,  A61F2002/30607 ,  A61F2002/30616 ,  A61F2002/30738 ,  A61F2002/3079 ,  A61F2002/30792 ,  A61F2002/30794 ,  A61F2002/30797 ,  A61F2002/3082 ,  A61F2002/30828 ,  A61F2002/30884 ,  A61F2002/30886 ,  A61F2002/30902 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/365 ,  A61F2002/3652 ,  A61F2002/3668 ,  A61F2002/3674 ,  A61F2002/4018 ,  A61F2002/4029 ,  A61F2002/4037 ,  A61F2002/4044 ,  A61F2002/4062 ,  A61F2002/4074 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2250/0062 ,  A61F2310/00023

摘要： An orthopaedic prosthesis system for replacement of an articulating portion of a long bone includes a sleeve, a stem, and a neck. The sleeve has an outer bone engagement surface and includes opposed proximal and distal female taper regions. The stem has a distal end for fixation within a long bone and a proximal end including a male taper region engaged with the distal female taper of the sleeve. The neck has a taper post that engages the proximal taper of the sleeve. Both the neck and the sleeve may define axial bores, the axial bore in the sleeve communicating with and being generally coaxial with the two opposed female tapers, and the neck axial bore extending through the taper post. A connecting element can engage the stem, pass through the axial bore in the sleeve, extend into the axial bore in the neck taper post, and engage the neck.

摘要翻译： 用于更换长骨的铰接部分的矫形假体系统包括套筒，杆和颈部。 套筒具有外骨接合表面并且包括相对的近端和远端阴锥形区域。 杆具有用于在长骨内固定的远端，并且近端包括与套筒的远端阴锥形接合的阳锥形区域。 颈部具有与套筒的近端锥形接合的锥形柱。 颈部和套筒都可以限定轴向孔，套筒中的轴向孔与两个相对的阴锥形通孔并且与两个相对的凹锥大致同轴，并且颈部轴向孔延伸穿过锥形柱。 连接元件可以接合杆，穿过套筒中的轴向孔，延伸到颈锥柱中的轴向孔中，并接合颈部。

公开(公告)号：US20070043447A1

公开(公告)日：2007-02-22

申请号：US10595291

申请日：2004-10-08

申请人： Edward Cheal ,  George Cipolletti

发明人： Edward Cheal ,  George Cipolletti

IPC分类号： A61F2/32

CPC分类号： A61F2/3609 ,  A61F2/36 ,  A61F2/3662 ,  A61F2/367 ,  A61F2/3672 ,  A61F2/3676 ,  A61F2/4607 ,  A61F2002/30112 ,  A61F2002/30113 ,  A61F2002/30125 ,  A61F2002/30146 ,  A61F2002/30153 ,  A61F2002/30332 ,  A61F2002/30336 ,  A61F2002/30349 ,  A61F2002/30357 ,  A61F2002/30382 ,  A61F2002/30405 ,  A61F2002/30433 ,  A61F2002/30434 ,  A61F2002/30449 ,  A61F2002/30604 ,  A61F2002/30616 ,  A61F2002/30774 ,  A61F2002/30797 ,  A61F2002/30808 ,  A61F2002/30827 ,  A61F2002/30879 ,  A61F2002/30891 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/365 ,  A61F2002/3652 ,  A61F2002/3656 ,  A61F2002/3696 ,  A61F2002/4619 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2220/005 ,  A61F2230/0004 ,  A61F2230/0006 ,  A61F2230/0008 ,  A61F2230/0017 ,  A61F2230/0019 ,  A61F2310/00011 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00179

摘要： A joint prosthesis may include a modular head member, a modular body member, and a stem member. The stem member may be so tapered as to be engageable by taper press-fit into the medullary cavity of a bone. The body member may be engageable in the stem member by friction-tight press-fit at a zone of diametrical interference.

摘要翻译： 关节假体可以包括模块化头部构件，模块化主体构件和杆构件。 杆构件可以是锥形的，以便通过锥形压配合到骨的髓腔中可接合。 主体构件可以通过在径向干涉区域的摩擦密封压配合而接合在杆构件中。

公开(公告)号：US06613093B2

公开(公告)日：2003-09-02

申请号：US10021863

申请日：2001-12-14

申请人： Alfred F. DeCarlo, Jr. ,  Hugh U. Cameron

发明人： Alfred F. DeCarlo, Jr. ,  Hugh U. Cameron

IPC分类号： A61F236

CPC分类号： A61F2/3662 ,  A61F2/36 ,  A61F2/3676 ,  A61F2002/30113 ,  A61F2002/30143 ,  A61F2002/30235 ,  A61F2002/30324 ,  A61F2002/30332 ,  A61F2002/30387 ,  A61F2002/304 ,  A61F2002/30403 ,  A61F2002/30405 ,  A61F2002/3051 ,  A61F2002/30512 ,  A61F2002/30579 ,  A61F2002/30774 ,  A61F2002/3079 ,  A61F2002/30794 ,  A61F2002/30795 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/3631 ,  A61F2002/365 ,  A61F2002/3694 ,  A61F2002/3696 ,  A61F2002/4638 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2230/0006 ,  A61F2230/0017 ,  A61F2230/0069 ,  A61F2250/0036

摘要： A bone prosthesis is provided which includes an implantable elongate stem member having a bore extending therethrough. The stem member has a proximal end and a distal end with at least one slot formed in the distal end. The slot extends along at least a portion of the stem member, in a longitudinal direction, from the distal end towards the proximal end to form at least two tines at the distal end of the stem. A bolt member is disposed within the bore of the stem member and has a proximal end and a distal end, wherein at least a portion of the bolt member proximate the distal end is threaded. An expander nut is disposed between the tines and is threadably matable with the distal end of the bolt member such that rotation of the bolt member in a first direction is effective to draw the expander nut towards the proximal end of the stem member to separate the tines at the distal end of the stem member.

公开(公告)号：US20020049502A1

公开(公告)日：2002-04-25

申请号：US10021863

申请日：2001-12-14

发明人： Alfred F. DeCarlo JR. ,  Hugh U. Cameron

IPC分类号： A61F002/36

CPC分类号： A61F2/3662 ,  A61F2/36 ,  A61F2/3676 ,  A61F2002/30113 ,  A61F2002/30143 ,  A61F2002/30235 ,  A61F2002/30324 ,  A61F2002/30332 ,  A61F2002/30387 ,  A61F2002/304 ,  A61F2002/30403 ,  A61F2002/30405 ,  A61F2002/3051 ,  A61F2002/30512 ,  A61F2002/30579 ,  A61F2002/30774 ,  A61F2002/3079 ,  A61F2002/30794 ,  A61F2002/30795 ,  A61F2002/3625 ,  A61F2002/3629 ,  A61F2002/3631 ,  A61F2002/365 ,  A61F2002/3694 ,  A61F2002/3696 ,  A61F2002/4638 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2230/0006 ,  A61F2230/0017 ,  A61F2230/0069 ,  A61F2250/0036

摘要： A bone prosthesis is provided which includes an implantable elongate stem member having a bore extending therethrough. The stem member has a proximal end and a distal end with at least one slot formed in the distal end. The slot extends along at least a portion of the stem member, in a longitudinal direction, from the distal end towards the proximal end to form at least two tines at the distal end of the stem. A bolt member is disposed within the bore of the stem member and has a proximal end and a distal end, wherein at least a portion of the bolt member proximate the distal end is threaded. An expander nut is disposed between the tines and is threadably matable with the distal end of the bolt member such that rotation of the bolt member in a first direction is effective to draw the expander nut towards the proximal end of the stem member to separate the tines at the distal end of the stem member.