Orthopedic implant extension

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone

Reexamination Certificate

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C623S020320, C623S020350

Reexamination Certificate

active

06953479

ABSTRACT:
A stem extension for surgical implants such as tibial or femoral knee implants. The stem extension is interposed between the stem and its load bearing component (i.e., tibial tray or condylar component) and angularly orients the attached stem relative to the load bearing component to facilitate positioning of the stem in the bone canal and alignment of the load bearing component with the mechanical axis of the leg. The extension includes a female taper that engages the load bearing component. The extension also includes a male taper having a longitudinal axis oriented at an angle relative to the longitudinal axis of the female taper. Engagement of the male taper with the stem thereby orients the stem at an angle relative to the longitudinal axis of the load bearing component. Because the bone canal into which the stem is inserted is oftentimes angled relative to the mechanical axis of the leg, such orientation of the stem adjusts for the contour and/or angulation of the canal and facilitates positioning of the stem in the canal in a manner that promotes the desired alignment between the load bearing component and the mechanical axis of the leg, thereby allowing the implant to more closely replicate the geometry of the knee and leg. In addition to being oriented angularly, the female and male taper of the extension may also be offset parallel to facilitate insertion of the stem into canals that are not only angled relative to, but also offset from, the mechanical axis of the leg.

REFERENCES:
patent: 3694820 (1972-10-01), Scales et al.
patent: 3803641 (1974-04-01), Golyakhovsky
patent: 4001896 (1977-01-01), Arkangel
patent: 4045825 (1977-09-01), Stroot
patent: 4106130 (1978-08-01), Scales
patent: 4135517 (1979-01-01), Reale
patent: 4179758 (1979-12-01), Gristina
patent: 4224695 (1980-09-01), Grundei et al.
patent: 4268920 (1981-05-01), Engelbrecht et al.
patent: 4538305 (1985-09-01), Engelbrecht et al.
patent: 4676797 (1987-06-01), Anapliotis et al.
patent: 4676798 (1987-06-01), Noiles
patent: 4714476 (1987-12-01), Ranawat et al.
patent: 4731086 (1988-03-01), Whiteside et al.
patent: 4790854 (1988-12-01), Harder et al.
patent: 4822365 (1989-04-01), Walker et al.
patent: 4822366 (1989-04-01), Bolesky
patent: 4834081 (1989-05-01), Van Zile
patent: 4865605 (1989-09-01), Dines et al.
patent: 4883488 (1989-11-01), Bloebaum et al.
patent: 4919670 (1990-04-01), Dale et al.
patent: 4936853 (1990-06-01), Fabian et al.
patent: 4944764 (1990-07-01), Stossel
patent: 4950297 (1990-08-01), Elloy et al.
patent: 4950298 (1990-08-01), Gustilo et al.
patent: 4959071 (1990-09-01), Brown et al.
patent: 4963155 (1990-10-01), Lazzeri et al.
patent: 4985037 (1991-01-01), Petersen
patent: 5002578 (1991-03-01), Luman
patent: 5071438 (1991-12-01), Jones et al.
patent: 5100407 (1992-03-01), Conrad et al.
patent: 5123928 (1992-06-01), Moser
patent: 5133760 (1992-07-01), Petersen et al.
patent: 5133763 (1992-07-01), Mullers
patent: 5135529 (1992-08-01), Paxson et al.
patent: 5139521 (1992-08-01), Schelhas
patent: 5152796 (1992-10-01), Slamin
patent: 5194066 (1993-03-01), Van Zile
patent: 5207711 (1993-05-01), Caspari et al.
patent: 5226915 (1993-07-01), Bertin
patent: 5271737 (1993-12-01), Baldwin et al.
patent: 5290313 (1994-03-01), Heldreth
patent: 5314479 (1994-05-01), Rockwood, Jr. et al.
patent: 5330534 (1994-07-01), Herrington et al.
patent: 5358526 (1994-10-01), Tornier
patent: 5387240 (1995-02-01), Pottenger et al.
patent: 5462563 (1995-10-01), Shearer et al.
patent: 5489309 (1996-02-01), Lackey et al.
patent: 5507814 (1996-04-01), Gilbert et al.
patent: 5507817 (1996-04-01), Craig et al.
patent: 5545228 (1996-08-01), Kambin
patent: 5549682 (1996-08-01), Roy
patent: 5549703 (1996-08-01), Daigle et al.
patent: 5556433 (1996-09-01), Gabriel et al.
patent: 5569263 (1996-10-01), Hein
patent: 5580352 (1996-12-01), Sekel
patent: 5593449 (1997-01-01), Roberson, Jr.
patent: 5613970 (1997-03-01), Houston et al.
patent: 5702457 (1997-12-01), Walch et al.
patent: 5743918 (1998-04-01), Calandruccio et al.
patent: 5766261 (1998-06-01), Neal et al.
patent: 5782920 (1998-07-01), Colleran
patent: 5885299 (1999-03-01), Winslow et al.
patent: 5902340 (1999-05-01), White et al.
patent: 5906644 (1999-05-01), Powell
patent: 6063091 (2000-05-01), Lombardo et al.
patent: 6068122 (2000-05-01), Burns et al.
patent: 6129764 (2000-10-01), Servidio
patent: 6146424 (2000-11-01), Gray, Jr. et al.
patent: 6149687 (2000-11-01), Gray, Jr. et al.
patent: 6162255 (2000-12-01), Oyola
patent: 6171342 (2001-01-01), O'Neil et al.
patent: 6197063 (2001-03-01), Dews
patent: 6214052 (2001-04-01), Burkinshaw
patent: 6228120 (2001-05-01), Leonard et al.
patent: 6423096 (2002-07-01), Musset et al.
patent: 163 476 (1958-06-01), None
patent: 29 27 880 (1981-02-01), None
patent: 43 20 086 (1994-12-01), None
patent: 0 099 167 (1984-01-01), None
patent: 0 177 755 (1985-09-01), None
patent: 0 363 019 (1990-04-01), None
patent: 0 457 222 (1991-05-01), None
patent: 0 679 375 (1995-11-01), None
patent: 0 853 930 (1998-07-01), None
patent: 0 679 375 (1998-09-01), None
patent: 0 931 522 (1999-07-01), None
patent: 0 712 617 (1999-09-01), None
patent: 0 940 126 (1999-09-01), None
patent: 0 993 813 (2000-04-01), None
patent: 1 048 274 (2000-11-01), None
patent: 1 082 943 (2001-03-01), None
patent: 2 288 509 (1976-05-01), None
patent: A 2 664 809 (1992-01-01), None
patent: 2 669 214 (1992-05-01), None
patent: 2 685 633 (1993-07-01), None
patent: 2 697 996 (1994-05-01), None
patent: 2 763 501 (1998-11-01), None
patent: 2 773 469 (1999-07-01), None
patent: 1 575 278 (1980-09-01), None
patent: 2 253 147 (1992-09-01), None
patent: 2 334 890 (1999-03-01), None
patent: 2 721 200 (1995-12-01), None
patent: WO 96/17553 (1996-06-01), None
patent: WO 98/46172 (1998-10-01), None
patent: WO 00/06056 (2000-02-01), None
Tornier Brochure entitled “Shoulder ProsthesisAequalis . . .Adaptability”, undated.
Tornier Brochure entitled “Prothese D'Epaule Aequalis Implant Humeral en Traumatologie”, undated.
Tornier Brochure entitled “Introducing the Aequalis™ Shoulder Prosthesis . . . designed to reproduced your patient's individual anatomy”, undated.
Smith & Nephew Orthopaedics—Performance. Innovation. Trust. Brochure entitled “Neer II™ total shoulder system” (2000).
Smith & Nephew Orthopaedcs—Performance. Innovation. Trust. Brochure entitled “ideas in motion Modular Shoulder System” (2000).
Smith & Nephew Brochure entitled “Cofield2Total Shoulder System—Surgical Technique” pp. 1-32 (May 1997).
Smith & Nephew Brochure entitled “Cofield2Total Shoulder System Making a Positive Impact on Shoulder Replacement” (Nov. 1996).
Smith & Nephew Brochure entitled “An Accurate, Reproducible, and Simple Solution to Complex Surgery Cofield2Total Shoulder System” pp. 1-22 (Dec. 1998).
Bechtold,, Joan, “Cross-Sectional Geometry of Tibiae,” (1989).
McCormack, Damian, “Mechanical Axis Deviation: Definitions, Measurements and Consequences,” http://www.iol.ie/˜rcsiorth/journal/volume2/issue5/mech.htm (Aug. 30, 2000).
Hicks,CORR,vol. 321:111-116 (1995).
Ries,J. Arthr.,13(1) (1998).
Stryker Howmedica Osteonics Total Knee Arthroplasty Total Stabilizer, http://www.osteonics.com/osteonics/knees/tsknee/tib.html (Feb. 17, 2000), p. 1.
Stryker Howmedica Osteonics Total Knee Arthroplasty Total Stabilizer, http://www.osteonics.com/osteonics/knees/tsknee/fem.html (Feb. 17, 2000), p. 1.
International Serach Report in related PCT/US01/22724.

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