Patent US9492184B2 successfully refreshed from Google Patents.
US9492184B2
Active / In Force
US
⏱️ 7.7 years remaining
Hip replacement systems and methods
Assignee: Individual
•
Filing: 2014-08-05
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Granted: 2016-11-15
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Expires: 2034-08-05
Abstract
Abstract Disclosed are systems, methods, devices and surgical techniques for joint arthroplasty, including implant components that facilitate the position and implantation of a hip replacement using cutting guides and various femoral implant arrangements.
Inventors
- 👤 William B. Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:31
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61F2/3609; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1664; A61B17/1668; A61B17/17; A61B17/1739; A61B17/1742; A61B17/175; A61F2/3094; A61F2/30942; A61F2002/30001; A61F2002/30316; A61F2002/30535; A61F2002/30604; A61F2002/30616; A61F2002/3625; A61F2002/3631
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
118 words
A femoral prosthesis for implantation into a resected proximal end of a femur, the prosthesis comprising: a stem having a proximal end and a distal end, a collar portion for placement in a location adjacent the proximal end of the stem to engage at least a portion of the resected proximal end of the femur, wherein the collar portion comprises a substantially rigid material and includes an interior surface sized and configured to be at least partially in intimate contact with an unresected outer surface of the femur when the stem is implanted into the femur, wherein the interior surface includes a patient-specific portion at least partially in intimate contact with the unresected outer surface of the femur.
Claim 2
Dependent Claim
118 words
A femoral prosthesis for implantation into a resected proximal end of a femur, the prosthesis comprising: a stem having a proximal end and a distal end, a collar portion for placement in a location adjacent the proximal end of the stem to engage at least a portion of the resected proximal end of the femur, wherein the collar portion comprises a substantially rigid material and includes an interior surface sized and configured to be at least partially in intimate contact with an unresected outer surface of the femur when the stem is implanted into the femur, wherein the interior surface includes a patient-specific portion at least partially in intimate contact with the unresected outer surface of the femur.
Claim 3
Dependent Claim
17 words
The femoral prosthesis of claim 1 , wherein the collar portion is integrally attached to the stem.
Claim 4
Dependent Claim
17 words
The femoral prosthesis of claim 1 , wherein the collar portion is modularly attached to the stem.
Claim 5
Dependent Claim
119 words
A femoral prosthesis for implantation into a resected proximal end of a femur, the prosthesis comprising: a stem having a proximal end and a distal end, a collar portion for placement in a location adjacent the proximal end of the stem to engage at least a portion of the resected proximal end of the femur, wherein the collar portion comprises a substantially rigid material and includes an interior surface sized and configured to be at least partially in intimate contact with an unresected outer surface of the femur when the stem is implanted into the femur, wherein at least a portion of the collar portion is pre-operatively shaped to substantially match one or more anatomical features of the patient.
Claim 6
Dependent Claim
119 words
A femoral prosthesis for implantation into a resected proximal end of a femur, the prosthesis comprising: a stem having a proximal end and a distal end, a collar portion for placement in a location adjacent the proximal end of the stem to engage at least a portion of the resected proximal end of the femur, wherein the collar portion comprises a substantially rigid material and includes an interior surface sized and configured to be at least partially in intimate contact with an unresected outer surface of the femur when the stem is implanted into the femur, wherein at least a portion of the collar portion is pre-operatively shaped to substantially match one or more anatomical features of the patient.
Claim 7
Dependent Claim
19 words
The femoral prosthesis of claim 4 , wherein the collar portion includes a non-circular opening for accommodating the stem.
Claim 8
Dependent Claim
52 words
The femoral prosthesis of claim 4 , wherein the collar portion further comprises a horizontal lower surface substantially perpendicular to a longitudinal axis of the femur, the horizontal lower surface shaped to be in intimate contact with a first resected surface of the femur when the stem is implanted into the femur.
Claim 9
Dependent Claim
63 words
The femoral prosthesis of claim 6 , wherein the collar portion further comprises a peripheral portion extending outward from the horizontal lower surface, the peripheral portion including a downwardly extending flanged portion having the inner surface sized and configured to be at least partially in intimate contact with the unresected outer surface of the femur when the stem is implanted into the femur.
Claim 10
Dependent Claim
66 words
The femoral prosthesis of claim 7 , wherein the collar portion includes a central body, the central body having a top surface, a bottom surface and a body depth taken between the top and bottom surfaces along the longitudinal axis of the femur, the downwardly extending flange having a flange depth taken along the longitudinal axis of the femur that is less than the body depth.
Claim 11
Dependent Claim
30 words
The femoral prosthesis of claim 8 , wherein at least one external surface of the central body includes a patient-specific portion that corresponds to an endosteal surface of the femur.
Claim 12
Dependent Claim
35 words
The femoral prosthesis of claim 8 , wherein at least a portion of the inner surface of the downwardly extending flanged portion incorporates a patient-specific portion that corresponds to a periosteal surface of the femur.
Claim 13
Dependent Claim
66 words
The femoral prosthesis of claim 7 , wherein the collar portion includes a central body, the central body having a top surface, a bottom surface and a body depth taken between the top and bottom surfaces along the longitudinal axis of the femur, the downwardly extending flange having a flange depth taken along the longitudinal axis of the femur that is greater than the body depth.
Claim 14
Dependent Claim
21 words
The femoral prosthesis of claim 7 , wherein the flanged portion extends substantially parallel to the longitudinal axis of the femur.
Claim 15
Dependent Claim
21 words
The femoral prosthesis of claim 7 , wherein the flanged portion extends substantially non-parallel to the longitudinal axis of the femur.
Claim 16
Dependent Claim
139 words
A femoral prosthesis for implantation into a resected proximal end of a femur, the prosthesis comprising a stem having a proximal end and a distal end a collar connected to the stem, the collar having a stem engagement portion for engaging the stem and a bone engagement portion for engaging a bone surface of the femur, wherein the collar includes an interior engagement surface having a patient-specific portion at least in intimate contact with an unresected periosteal surface of the femur, and the stem includes an exterior engagement surface configured to match at least a portion of an endosteal surface of the femur, wherein the collar further includes a resected bone engagement surface positioned between the interior engagement surface and the exterior engagement surface, the resected bone engagement surface configured to engage a resected bone surface of the femur.
Claim 17
Dependent Claim
139 words
A femoral prosthesis for implantation into a resected proximal end of a femur, the prosthesis comprising a stem having a proximal end and a distal end a collar connected to the stem, the collar having a stem engagement portion for engaging the stem and a bone engagement portion for engaging a bone surface of the femur, wherein the collar includes an interior engagement surface having a patient-specific portion at least in intimate contact with an unresected periosteal surface of the femur, and the stem includes an exterior engagement surface configured to match at least a portion of an endosteal surface of the femur, wherein the collar further includes a resected bone engagement surface positioned between the interior engagement surface and the exterior engagement surface, the resected bone engagement surface configured to engage a resected bone surface of the femur.
Claim 18
Dependent Claim
20 words
The femoral prosthesis of claim 14 , wherein the resected bone surface is a neck osteotomy of the femoral neck.
Claim 19
Dependent Claim
19 words
The femoral prosthesis of claim 15 , wherein the collar substantially surrounds the entire periphery of the neck osteotomy.
Claim 20
Dependent Claim
23 words
The femoral prosthesis of claim 15 , wherein the collar engages at least two opposing locations about a circumference of the neck osteotomy.
Claim 21
Dependent Claim
20 words
The femoral prosthesis of claim 14 , wherein the stem engagement portion comprises a non-circular opening for accommodating the stem.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2019-11-15 | 2020-05-16 | 2020-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2023-11-15 | 2024-05-16 | 2024-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2027-11-15 | 2028-05-16 | 2028-11-15 | $7700.00 | Pending Window |