US5879354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic implant
Assignee: Biomet Manufacturing LLC
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Filing: 1997-07-14
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Granted: 1999-03-09
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Expires: 2017-07-14
Abstract
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.
Inventors
- 👤 Timothy G. Haines
- 👤 David B. Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:44
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/14; A61B17/15; A61B17/154; A61B17/155; A61B17/16; A61B17/1662; A61B17/1675; A61B17/17; A61B17/1739; A61B17/1764; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/38; A61F2/3859; A61B17/157; A61B17/1767; A61B2017/1602
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
85 words
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.
Claim 2
Independent Claim
85 words
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.
Claim 3
Dependent Claim
53 words
The method of claim 1 wherein the inner contact surface of the implant has a geometry matching a cut in a bone having a curvilinear surface, and the step of attaching the implant to a resected bone includes the step of contacting the inner contact surface of the implant against a resected bone.
Claim 4
Dependent Claim
42 words
The method of claim 2 further comprising the step of using more than one milling bit to resect a bone, each milling bit having a different diameter or profile to form a curvilinear cut in a bone extending along a medio-lateral direction.
Claim 5
Dependent Claim
46 words
The method of claim 1 wherein the inner surface of the implant is smaller in size than a bone to which it is to be attached and the step of attaching the implant to a bone comprises the step of press-fitting the implant onto a bone.
Claim 6
Dependent Claim
29 words
The method of claim 1 wherein the step of affixing the pattern means to a bone comprises the steps of attaching pattern means to opposing sides of a bone.
Claim 7
Independent Claim
91 words
A method for attaching an implant to a bone comprising the steps of: 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.
Claim 8
Independent Claim
91 words
A method for attaching an implant to a bone comprising the steps of: 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.
Claim 9
Dependent Claim
53 words
The method of claim 6 wherein the inner contact surface of the implant has a geometry matching a cut in a bone having a curvilinear surface, and the step of attaching the implant to a resected bone includes the step of contacting the inner contact surface of the implant against a resected bone.
Claim 10
Dependent Claim
42 words
The method of claim 7 further comprising the step of using more than one milling bit to resect a bone, each milling bit having a different diameter or profile to form a curvilinear cut in a bone extending along a medio-lateral direction.
Claim 11
Dependent Claim
46 words
The method of claim 6 wherein the inner surface of the implant is smaller in size than a bone to which it is to be attached and the step of attaching the implant to a bone comprises the step of press-fitting the implant onto a bone.
Claim 12
Independent Claim
107 words
A method for attaching an implant to a bone comprising the steps of: 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.
Claim 13
Independent Claim
107 words
A method for attaching an implant to a bone comprising the steps of: 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.
Claim 14
Dependent Claim
53 words
The method of claim 10 wherein the inner contact surface of the implant has a geometry matching a cut in a bone having a curvilinear surface, and the step of attaching the implant to a resected bone includes the step of contacting the inner contact surface of the implant against a resected bone.
Claim 15
Dependent Claim
42 words
The method of claim 11 further comprising the step of using more than one milling bit to resect a bone, each milling bit having a different diameter or profile to form a curvilinear cut in a bone extending along a medio-lateral direction.
Claim 16
Dependent Claim
46 words
The method of claim 10 wherein the inner surface of the implant is smaller in size than a bone to which it is to be attached and the step of attaching the implant to a bone comprises the step of press-fitting the implant onto a bone.
Claim 17
Dependent Claim
29 words
The method of claim 10 wherein the step of affixing the pattem means to a bone comprises the steps of attaching pattern means to opposing sides of a bone.
References Cited (Backward Citations)
US3816855A
Cited
US3798679A
Cited
US4358859A
Cited
US4353135A
Cited
US4487203A
Cited
US4653488A
Cited
US4568348A
Cited
US4457307A
Cited
US4566448A
Cited
US4474177A
Cited
US4662889A
Cited
US4586933A
Cited
US4770663A
Cited
US4721104A
Cited
US4787383A
Cited
US4736737A
Cited
US4722330A
Cited
US4822365A
Cited
US5250050A
Cited
US5314482A
Cited
US5002545A
Cited
US5234433A
Cited
US5304181A
Cited
US5228459A
Cited
US5263498A
Cited
US5100409A
Cited
US5098436A
Cited
US5053037A
Cited
EP0538153A1
Cited
US5474559A
Cited
US5593411A
Cited
US5601563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-08 | 2002-09-07 | 2003-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-08 | 2006-09-07 | 2007-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-08 | 2010-09-07 | 2011-03-09 | $7700.00 | Window Closed / Lapsed |