Prosthetic implant
First Claim
Patent Images
1. A method attaching an implant to a bone comprising the steps of:
- positioning pattern means with cutting path means along a bone;
affixing the pattern means to a bone;
interconnecting milling means with the pattern means, the milling means having more than one cutting area to form a curvilinear cutting profile;
traversing the cutting means along the cutting path means of the pattern means to cut a bone; and
attaching an implant having a curvilinear fixation profile to a curvilinear surface cut in a bone.
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Abstract
An implant is provided for which has an outer bearing surface and an inner attachment surface. The outer bearing surface functions as ajoint contact surface for a reconstructed bone joint. The inner attachment surface contacts a bone and is attached thereto. The inner attachment surface of the implant is curvilinear from the anterior to the posterior area of the femur, and is also curvilinear from the medial to the lateral areas of the femur to approximates the shape of natural femur. The resection of the femur for accommodating the implant can be properly performed by a milling device employing one or more curvilinear milling bits.
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Citations
14 Claims
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1. A method attaching an implant to a bone comprising the steps of:
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positioning pattern means with cutting path means along a bone; affixing the pattern means to a bone; interconnecting milling means with the pattern means, the milling means having more than one cutting area to form a curvilinear cutting profile; traversing the cutting means along the cutting path means of the pattern means to cut a bone; and attaching an implant having a curvilinear fixation profile to a curvilinear surface cut in a bone. - View Dependent Claims (2, 3, 4, 5)
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6. A method for attaching an implant to a bone comprising the steps of:
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positioning pattern plates with cutting paths along opposite sides of a femur; affixing the patten plates to opposite sides of a femur; inserting a cutting means through the cutting paths, the cutting means having more than one cutting area to form a curvilinear cutting profile; traversing the cutting means along the cutting paths to form a curvilinear surface on a femur; and attaching an implant having a curvilinear fixation profile to a curvilinear surface cut in a femur. - View Dependent Claims (7, 8, 9)
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10. A method for attaching an implant to a bone comprising the steps of:
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positioning pattern means alongside a surface of a bone to be cut, the pattern means including cutting path means, the cutting path means comprising at least two continuous guide surfaces for making non-coplanar surfaces in bone; interconnecting cutting means with the cutting path means, the cutting means having more than one cutting area to form a curvilinear cutting profile; traversing the cutting means along the cutting path means for cutting a bone; and attaching an implant having a curvilinear fixation profile and a curvilinear fixation path to a curvilinear surface cut in a bone. - View Dependent Claims (11, 12, 13, 14)
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Specification