Source: https://patents.google.com/patent/US8241367B2/en
Timestamp: 2019-07-18 18:59:42
Document Index: 650334973

Matched Legal Cases: ['application No. 10179328', 'Application No. 2004', 'application No. 04250511', 'application No. 04250511', 'application No. 04250511', 'application No. 2004200394', 'application No. 04250511', 'application No. 2004200394']

US8241367B2 - Modular bone implant, tool, and method - Google Patents
US8241367B2
US8241367B2 US12/951,864 US95186410A US8241367B2 US 8241367 B2 US8241367 B2 US 8241367B2 US 95186410 A US95186410 A US 95186410A US 8241367 B2 US8241367 B2 US 8241367B2
US20110066249A1 (en
2010-11-22 Application filed by Zimmer Inc, Zimmer Technology Inc filed Critical Zimmer Inc
This application is a continuation of U.S. patent application Ser. No. 11/625,053, filed Jan. 19, 2007, now U.S. Pat. No. 7,857,858, which is a continuation of U.S. patent application Ser. No. 10/369,331, filed Feb. 18, 2003, now U.S. Pat. No. 7,182,786, which is a continuation-in-part of U.S. patent application Ser. No. 10/132,668, filed on Apr. 25, 2002, now abandoned, the disclosures of which are hereby expressly incorporated by reference herein in their entireties.
In another form thereof, the present disclosure provides a bone joint implant comprising: a first component having top and bottom surfaces; and a second component having a top end and a bottom end and an axis from the top end to the bottom end, the second component being removably affixed to the bottom of the first component, one of the first and second components including a male junction element having an outer wall including a first seating portion having a first shape and a second seating portion having a second shape, the other of the first and second components including a female junction having an inner wall including a first seating portion having a first shape congruent with the male first seating portion shape and a second seating portion having a second shape congruent with the male second seating portion shape, the first and second seating portion shapes being incongruent, the second component being releasably joined with the first component with the male first and second seating portions being in close fitting relationship with the female first and second seating portions.
a tibial tray having substantially planar top and bottom surfaces and an axis extending between said surfaces, at least one fin extending radially outwardly along the bottom surface and projecting axially downwardly, the tray further including an outwardly projecting boss extending from the bottom surface, the boss having an outer wall including a cylindrical portion and a tapered portion and an inner wall defining a throughbore;
a tibial keel forming an elongate body having a top end, a bottom end, an outer surface, and an axis from the top end to the bottom end generally parallel to the tray axis, at least one fin extending axially along the outer surface and projecting radially outwardly, the tray and keel fins being generally axially aligned with one another from top to bottom to project as a single fin, the tibial keel further including a first axial bore extending inwardly from said top end and forming a bore wall, the bore wall including a cylindrical portion and a tapered portion, the tibial keel being removably engageable with the tibial tray with the boss received in the first axial bore of the tibial keel, the tapered portion of the boss seating on the tapered portion of the first axial bore to define a first junction between the tibial tray and the tibial keel, and the cylindrical portion of the boss being received by the cylindrical portion of the first bore in press-fit relationship to form a second junction between the tibial tray and tibial keel,
wherein at least one of the first and second junctions includes a rotational alignment means for aligning the tibial tray and the tibial keel in a predetermined relationship for assembly, the alignment means being formed within the junction.
3. The tibial component of claim 1 wherein the rotational alignment means is positioned within the junction relative to the cylindrical press-fit portion so that it is sealed within the junction to prevent migration of material from the rotational alignment means outside of the junction.
4. The tibial component of claim 1 wherein the rotational alignment means comprises a pin received in a hole.
5. The tibial component of claim 4 wherein the pin is located in the first axial bore and the pin is received by a hole formed in the boss.
6. The tibial component of claim 1 wherein the tibial keel includes a second axial bore extending from the bottom end toward the top end to communicate with the first axial bore, the second axial bore forming a tapered inner wall for receiving a stem extension.
7. The tibial component of claim 6 wherein the tray includes a bore extending from the top surface downwardly through the boss in communication with the first axial bore, the tray bore receiving a bolt in engagement with one of the keel and stem extension.
8. The tibial component of claim 1 wherein one of the first and second junctions comprise a sealing junction to prevent the passage of material across the junction.
9. The tibial component of claim 1 wherein the cylindrical press-fit second junction seals a space adjacent the taper first junction to prevent the outward migration of material from the taper first junction.
10. The tibial component of claim 1 wherein the tapered portion of the boss is formed below the cylindrical portion of the boss and the tapered portion of the first axial bore is formed below the cylindrical portion of the first axial bore so that the tapered seating portion of the first junction is below the cylindrical press-fit portion of the second junction.
11. The tibial component of claim 10 wherein the cylindrical press-fit between the boss and first axial bore seals the first axial bore to prevent material from entering or leaving the portion of the first axial bore below the press-fit.
12. The tibial component of claim 1 wherein the tray and keel fins are in an axial spaced relationship so that they do not contact.
US20110066249A1 US20110066249A1 (en) 2011-03-17
US8241367B2 true US8241367B2 (en) 2012-08-14
FR2225141A1 (en) 1973-04-12 1974-11-08 Feldmuehle Anlagen Prod
WO1986002260A1 (en) 1983-08-12 1986-04-24 Ab Idea Method and device for fixing a joint prosthesis
EP0283706A1 (en) 1987-03-09 1988-09-28 Waldemar Link (GmbH &amp; Co.) Hip prosthesis
WO1991017723A1 (en) 1990-05-16 1991-11-28 Chas F Thackray Limited Dummy device for moulding bone cavity form
EP0556997A1 (en) 1992-02-20 1993-08-25 Wright Medical Technology, Inc. Modular shaping and trial reduction guide for implantation of the femoral part of a posterior-stabilized knee joint endoprosthesis
FR2705558A1 (en) 1993-05-24 1994-12-02 Medinov Sa Hip reconstruction prosthesis and fitting apparatus
EP0832620A2 (en) 1996-09-25 1998-04-01 Biomet, Inc. Modular component connector
US6109602A (en) 1996-10-07 2000-08-29 Jergens, Inc. Clamping device
JP2001087292A (en) 1999-09-27 2001-04-03 Kobe Steel Ltd Tibia tray
European Search Report mailed Dec. 17, 2010 in related European application No. 10179328.9.
Japanese Office Action mailed Apr. 5, 2011 in related Japanese Application No. 2004-295021and its English translation.
The European Search Report completed Aug. 12, 2004 and published Oct. 20, 2004 in related European application No. 04250511.5.
The Office Action mailed Feb. 11, 2005 in related European application No. 04250511.5.
The Office Action mailed Jan. 31, 2005 in related European application No. 04250511.5.
The Office Action mailed Oct. 16, 2008 in related Australian application No. 2004200394.
The Response filed Jun. 9, 2005 to the Office Action mailed Feb. 11, 2005 in related European application No. 04250511.5.
The Response filed Mar. 25, 2009 to the Office Action mailed Oct. 16, 2008 in related Australian application No. 2004200394.
JP6239794B2 (en) 2017-11-29 Implantable modular orthopedic hip prosthesis