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公开(公告)号：US4731087A
公开(公告)日：1988-03-15
申请号：US662
申请日：1987-01-06
CPC分类号： A61F2/4225 , A61F2002/30107 , A61F2002/4233 , A61F2210/0009
摘要： A prosthesis for replacement of the first metatarsal-phalangeal articulation comprises a metatarsal component and a phalangeal component. The metatarsal component has a convex articulating surface and concave distal aspect, the metatarsal articulating surface being curved so as to approximate the natural articular surface of the first metatarsal bone and furthermore to articulate smoothly with the phalangeal articulating surface of the phalangeal component. The phalangeal component comprises a base member and an insert, the base member having a distal aspect adapted to engage and be secured to a resected end of the phalanx bone and also having a proximal aspect adapted to receive and have permanently attached thereto the insert. The insert, which includes the phalangeal articulating surface, is made available in various distal-proximal thicknesses, and an appropriately sized insert is selected during implantation so as to cause the tension in the natural soft tissue surrounding the prosthesis after implantation to approximate the tension of the soft tissue of the natural metatarsal-phalangeal articulation.
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公开(公告)号：US06575980B1
公开(公告)日：2003-06-10
申请号：US09362599
申请日：1999-07-28
IPC分类号： A61B1758
CPC分类号： A61B17/155 , A61B2090/061
摘要： An instrument is provided for use in shaping a femur preparatory to implantation of a knee prosthesis. A gap checking device is fixed to the distal end of the patient's femur and referenced to the epicondyles of the femur. The gap checking device includes slots through which a cutting instrument can be passed to shape the femur so that it can receive the femoral component of the prosthesis. One of the slots enables the distal femoral cut to be made. The thickness of the gap checking device is selected so that the distance between the distal femoral cut and the distal surface of the gap checking device plus the thickness of a shim resting on the cut proximal tibia surface is equal to the combined thickness of the tibial and femoral components of the prosthesis. This enables balancing of the ligaments to be checked before the femoral cuts are made, but while the gap checking device is secured to the femur.
摘要翻译： 提供了一种用于塑造准备植入膝关节假体的股骨的器械。 间隙检查装置被固定到患者股骨的远端并参照股骨的上髁。 间隙检查装置包括槽，通过该槽可以切割器械通过以形成股骨，使得其可以接收假体的股骨部件。 其中一个槽使得能够制造远端股骨切口。 选择间隙检查装置的厚度，使得间隙检查装置的远端股骨切割和远端表面之间的距离加上搁置在切割的近侧胫骨表面上的垫片的厚度等于胫骨和 假体的股骨部件。 这使得能够在制造股骨切割之前平衡待检查的韧带，但是在间隙检查装置固定到股骨时。
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公开(公告)号：US6010509A
公开(公告)日：2000-01-04
申请号：US110734
申请日：1998-07-01
申请人： Sam Delgado , Joseph Lipman , Vojko Milin , Thomas P. Sculco
发明人： Sam Delgado , Joseph Lipman , Vojko Milin , Thomas P. Sculco
CPC分类号： A61B17/1767 , A61F2/461 , A61F2002/30878 , A61F2002/4622 , A61F2002/4623
摘要： A patella resection and replacement device comprising a pliers-like clamp for gripping and holding the patella, the clamp having a spring biased hinge bolt. A specially designed drill guide may be snapped into place and removed from the hinge bolt without releasing the patella during surgery. Similarly, a specially designed patella button presser may be snapped into place and removed from the hinge bolt. Without the necessity of releasing, re-gripping and re-orienting the patella during the process, the time for the operation is greatly reduced.
摘要翻译： 一种髌骨切除和置换装置，包括用于夹持和保持髌骨的钳状夹具，所述夹具具有弹簧偏压的铰链螺栓。 专门设计的钻子导向器可能会卡入到位，并从铰链螺栓上取下，而不会在手术过程中松开髌骨。 类似地，特别设计的髌骨按钮按压器可以卡扣就位并从铰链螺栓移除。 在该过程中不需要释放，重新夹紧和重新定向髌骨，所以操作时间大大降低。
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公开(公告)号：US06159217A
公开(公告)日：2000-12-12
申请号：US241964
申请日：1999-02-02
CPC分类号： A61B17/155
摘要： A clamp device, cutting guide, and clamp slider used together in preparation to cutting of the distal end of the femur bone during total knee replacement surgery. The clamp device includes an upper arm and a lower arm rotatably secured to one another in a scissor-like manner. A curved movable component is rotatably secured to the proximal end of the lower arm. The clamp device is positioned around a portion of the distal end of the femur bone so that the distal end of the upper arm grasps a posterior ridge of the femur bone and the movable component of the lower arm is positioned along the contour of the deepest part of the trochlear groove, thereby defining a plane through the deepest part of the trochlear groove of the femur bone. Next, a clamp slider is removably secured to a cutting guide so that channels defined in the clamp slider and cutting guide are substantially aligned with one another. The assembled clamp slider and cutting guide are then slid over the clamp and rotated until the clamp is received in the channels with the cutting guide in contact with an anterior portion of the femur bone. Then the cutting guide is positioned so that arms projecting from each side are substantially aligned with a center of the medial or lateral epicondyle of the femur bone. Lastly, the clamp slider and clamp are removed, whereby the cutting guide remains properly aligned on the femur bone in order to ensure the correct angle of the cuts in the femur bone.
摘要翻译： 在整个膝关节置换手术期间，夹紧装置，切割引导件和夹紧滑块一起用于准备切割股骨骨的远端。 夹紧装置包括以剪刀状方式彼此可旋转地固定的上臂和下臂。 弯曲的可移动部件可旋转地固定到下臂的近端。 夹持装置围绕股骨的远端的一部分定位，使得上臂的远端抓住股骨的后脊，并且下臂的可移动部件沿着最深部分的轮廓定位 从而限定穿过股骨的滑车槽的最深部的平面。 接下来，夹具滑块可移除地固定到切割引导件，使得限定在夹具滑块和切割引导件中的通道彼此基本对齐。 然后将组装的夹具滑块和切割引导件滑过夹具并旋转直到夹具被容纳在通道中，其中切割引导件与股骨的前部部分接触。 然后切割引导件定位成使得从每侧突出的臂基本上与股骨骨的内侧或外侧上髁的中心对准。 最后，夹具滑块和夹具被移除，由此切割引导件保持适当地对准在股骨上，以确保股骨中切口的正确角度。
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