|Publication number||US3840904 A|
|Publication date||Oct 15, 1974|
|Filing date||Apr 30, 1973|
|Priority date||Apr 30, 1973|
|Publication number||US 3840904 A, US 3840904A, US-A-3840904, US3840904 A, US3840904A|
|Original Assignee||R Tronzo|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Non-Patent Citations (2), Referenced by (131), Classifications (27) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Acetabular cup prosthesis
US 3840904 A
An acetabular cup prosthesis which has facilities for ready removal. In one form it has grooves to guide a surgical saw on the inside, preferably to cut the prosthesis in quadrants for removal, and also having threaded sockets to insert a tool to remove the quadrants. Additionally or alternatively, it has protrusions from its rear not adapted to offer much resistance in case of removal. In the preferred form two blades protrude from the rear and are offset, so that they come to a point and also form a knife edge at the side. Outrigger blades are provided extending perpendicular to the diameter and terminating at a less height than the radius. In the preferred form the rear of the prosthesis has a porous coating and also the blades have a porous coating. In alternate forms, spikes extend from the rear of the prosthesis offset and in parallel relation, either from one side in a cluster or from one side distributed over that side. In another form there is a screw which extends from the rear end offset to the axis of symmetry.
United States Patent 1 1 Tronzo 1 Oct. 15, 1974 1 ACETABULAR CUP PROSTHESIS  Inventor: Raymond G. Tronzo, 133 S. 36th St., Philadelphia, Pa. 19104  Filed: Apr. 30, 1973 21 Appl. No.: 355,875
 US. Cl. 3/1, 128/92 C  Int. Cl. A6lf 1/24  Field of Search. 3/1; 128/92 C, 92 CA, 92 BA,
128/92 BB, 92 BC, 92 D OTHER PUBLICATIONS Total Hip Arthroplasty, Using a Universal Joint Device-The Tronzo Total Hip System, Advertisement by Richards Mfg. Co., The Journal of Bone and Joint Surgery, Vol. 53-B, No. 2, May 1971. Vitallium Surgical Appliances (catalog), Austenal C0., New York, NY. 1964, McBride Acetabulum Cups/No. 6429 on page 30 relied upon.
Primary Examiner-Richard A. Gaudet Assistant Examiner-Ronald L. Frinks Attorney, Agent, or Firm-Jackson, Jackson 8t Chovanes  ABSTRACT An acetabular cup prosthesis which has facilities for ready removal. In one form it has grooves to guide a surgical saw on the inside, preferably to cut the prosthesis in quadrants for removal, and also having threaded sockets to insert a tool to remove the quadrants. Additionally or alternatively, it has protrusions from its rear not adapted to offer much resistance in case of removal. In the preferred form two blades protrude from the rear and are offset, so that they come to a point and also form a knife edge at the side. Outrigger blades are provided extending perpendicular to the diameter and terminating at a lessheight than the radius. In the preferred form the rear of the prosthesis has a porous coating and also the blades have a porous coating. In alternate forms, spikes extend from the rear of the prosthesis offset and in parallel relation, either from one side in a cluster or from one side distributed over that side. In another form there is a screw which extends from the rear end offset to the axis of symmetry,
In another form there are blades which lie along the rear, for example parallel to one another and parallel to the diameter or at right angles to the diameter.
4 Claims, 17 Drawing Figures ACETABULAR CUP PROSTHESIS DESCRIPTION OF THE INVENTION In acetabular cup prostheses the object heretofore has been to have the prosthesis remain as long as the person or animal in which it is inserted is alive. In some prostheses this is counter productive, because it is necessary to remove the prosthesis either for the purpose of experiment or because of a desire to insert a more suitable prosthesis.
One of the purposes of the present invention is to aid in cutting the prosthesis to remove it from the body by inserting guide grooves and possibly anchorages for a tool by which the prosthesis may be removed.
Another aspect of the problem is that anchorage is from the rear end of the prosthesis and may have a tendency to remain in the acetabulum when the prosthesis is removed. Instead the anchorage may be in the form of two blades sloping to a point and converging toward one another, preferably with outrigger blades along the sides of the cup at the back.
Also, the anchorage may preferably have pores on the back of the acetabular cup prosthesis and on the blades into which bone can grow, one or both can be coated.
Alternatively, the acetabular cup prosthesis may be supported by a series of parallel spikes which are sloping with respect to the axis of symmetry of the cup and are either grouped in a cluster at one side at the back of the cup or distributed along one side of the back of the cup. An alternate form may be an ofiset screw from the back of the cup, with one or several screws being used.
Another alternate form may have blades along the back of the cup extending either parallel to the diameter of the cup or at right angles to the diameter of the cup.
As exemplary of these various forms, the following drawings are presented.
FIG. 1 is a perspective of the preferred form of my acetabular cup prosthesis.
FIG. 2 is an exploded perspective of FIG. 1 showing metallic parts on the left and plastic on the right.
FIG. 3 is a rear view of the acetabular cup prosthesis of FIG. 1 in place in an acetabulum.
FIG. 4 is a side view of the device of FIG. 1.
FIG. 5 is a front view of the device of FIG. 1.
FIG. 6 is a section along the line 6-6 of FIG. 5.
FIG. 7 is a section on the line 7-7 of FIG. 4.
FIG. 8 is a side elevation of an alternate form of the invention.
FIG. 9 is a front elevation of the form of FIG. 8.
FIG. 10 is a side elevation of a somewhat different form of acetabular cup prosthesis.
FIG. 11 is a front elevation of FIG. 10.
FIG. 12 is a side elevation of a somewhat different form of the invention, partially broken away.
FIG. 13 is a front view of the form of FIG. 12.
FIG. 14 is a side elevation of a different form of the invention.
FIG. 15 is a back view of the form of FIG. 14.
FIG. 16 is a side elevation of a further variation of the invention.
The main purpose of this invention is to hold an acetabular cup prosthesis by a means which will aid in removing it from the body for evaluation or change, if removal is necessary or desirable. Acetabular cup prostheses may be used on humans and also in veterinary medicine, particularly for experimental purposes to test the relative benefits of various prostheses.
For the purpose of removal, one improvement made by the present invention is to insert guide grooves so that the prosthesis may be readily and unerringly cut up for removal, and to add threaded sockets to attach a removal tool to each piece.
Another desirable expedient is to attach converging blades terminating in a point to the back of the acetabular cup prosthesis and to have Outriggers anchored to the back of the cup at right angles to the diameter and terminating at a distance less than the radius. The blades may be joined or separated.
, Preferably these blades and the prosthesis itself have porous coatings on the back which aid in anchorage by bone growth.
As an alternative, spikes are offset with respect to the axis of symmetry to anchor the prosthesis, the spikes being distributed around in a cluster together at one side, or all over one side as preferred. As another form of anchorage, I may use an offset screw secured to the back of the acetabular cup prosthesis. The spikes and screws may or may not be coated in contrast to the main cup. 7
Another embodiment, particularly when taken with a porous coating, has blades on the outside of the cup which are either circular around the cup parallel to the diameter or perpendicular to the diameter or at any angle between these. The blades themselves may or may not be coated in contrast to the main cup.
Considering the form of FIGS. 1 to 7, it consists of a preferably metal cup 20 smooth on the inside, and preferably receiving a liner 22 of plastic such as high density polyethylene, which is smooth and round on the inside and may have a gripping tendency on the outside by way of slots 28 and/or holes.44. This liner is intended to receive a ball from the femur, which may be the natural ball, but will preferably be an artificial ball which replaces the natural ball as well known in the art of prostheses. There is a rim 24 on the liner and at a but still making it easily replaceable as desired.
It will be evident that in referring to the diameter of the cup, reference is made to the diameter measured at the mouth of the cup and being substantially the diameter of the ball which is fitted into the cup. The cup is preferably about half a sphere.
On the outside of the cup and'on the blades if any protruding from it, a porous composition may be molded on with a view to aiding bone growth to interlock with the cup. This porous interlock is described more in detail below.
From the rear of the cup there protrude two blades 30 which are in converging directions and meet on a line 32 and in an apex 34, so that the cross section of the bladesis V-shaped. It will be seen that the faces of the blades are substantially triangular, except that they meet the outer edge of the cup on a curved surface.
The orientation of the meeting blades 30 with respect to the axis of symmetry of the cup is such that the blades are offset about 20 toward the outside of the body for a human.
The cup is prevented from turning, particuiarly in the initial stages of implant, by two blades 36 which are diametrically placed at a point where they will not interfere with the blades 30 and which extend at right angles to the diameter in a straight direction and terminate preferably in a point 38 which aids insertion. Short of the radius and preferably blending with the cup, is a blade edge 40.
The blades 36 may to advantage not have the porous coating, since their function is primarily though not entirely at the initial phases of implant.
At the inner surface of the cup there are guide grooves 42 which are arranged in quadrature, and which cooperate with threaded sockets 44 for receiving a suitable pulling tool. The grooves 42 are intended to guide the surgical saw in cutting the acetabular cup prosthesis for removal of one quadrant at a time. Of course, it is evident that if trouble is anticipated in removing a quadrant, then the portions indicated by the guide lines 42 may be smaller. I
The removal is contemplated in all forms of the invention, and it will be evident that in discussing later alternateforms where the removal may not be stressed, removal is still contemplated if desired.
Alternatively, the blades 30 may be replaced. by spikes 46- which are extending in a direction at which they are inclined to the axis of symmetry of the cup about 20. The spikes are preferably free from interlocking projections and are diminishing progressively from a maximum cross section adjoining the cup to a minimum cross section at the point. They may be round, triangular, or squared in cross section. The spikes may be arranged in a cluster of three as shown in FIGS. 8 and 9, or they may be distributed along one side as in FIGS. 10 and 11. In any case the spikes are substantially parallel so that they will offer minimum obstruction in extraction.
As an alternate method of affixation, a screw 48 is shown protruding from the cup at an angle of inclination with respect to the axis of symmetry suitably about 20. A cluster of screws couldbe used, also.
In FIGS. 14 and 15, I show; a form which has blades 50, on the outside of the cup, the blades extending in a circular direction parallel to the diameter as shown in this figure, or at right angles to the diameter as in FIGS. 16 and 17 or at any direction in between. The blades 50 are parallel or substantially so in themselves.
I find that porous material of the implant may to advantage be provided with small pores to receive the bone growth immediately, and also intermediate and large pores to receive the bone growth later. The layer of porous material should be at least 100 microns thick, preferably at least 1/16 inch thick and most desirably at least 1/8 inch thick.
The pores cover a substantial part of the surface, at least 20 to 50 percent, preferably 30 to 40 percent and most desirably about 33 percent.
The pores in size are divided into small, intermediate and large pores and at the surface from 20 to 40 percent of the pore area, preferably from 30 to 36 percent and most desirably 33 percent must be of each pore diameter (large, intermediate and small). For the purpose of this invention small pores consist of pores having diameters at the surface of 50 to 200 microns, preferably to 125 microns and most desirably about microns.
.The intermediate pores range in diameter from 200 to 800 microns. The large pores are larger than 800 microns and not larger than 3,500 microns.
The porous material may be put down by metallizing techniques as described in Welding Handbook, 3rd Edition. 1
More information is given in my applications Ser. No. 228,052, filed Feb. 22, 1972 for Bone Implant with P0- rous Exterior Surface, since abandoned and Ser. No. 342,461, filed Mar. l9, 1973-for Bone Implant with P0- rous Exterior Surface, and these applications are incorporated herein by reference and are part hereof.
In view of my invention and disclosure, variations and modifications to' meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain all or part of the benefits of my invention without copying the apparatus shown, and I therefore claim all such insofar as they fall within the reasonable spirit and scope of my claims.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:
1. An acetabular cup prosthesis including a cup shaped insertion and a guide groove across the inside of the insertion at substantially diametrical distance for a surgical saw by which it can be cut up for removal.
2. An acetabular cup prosthesis of claim 1, having guide grooves at the inside surface which are of sub stantially diametrical length and of cruiiiform formation.
3. An acetabular cup prosthesis of claim'2, having in each quadrant of the cup a threaded opening for receiving a threaded extraction tool, the openings being near the center of the cup.
4. An acetabular cup prosthesis of claim 2, having converging blades from the back of the cup diminishing in size away from the cup and the biades having a common edge and making a V in cross-section.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2602445 *||Mar 16, 1950||Jul 8, 1952||Gallant Alfred E||Fracture nail|
|US3584318 *||Jan 13, 1966||Jun 15, 1971||Nat Res Dev||Artificial joints for use in surgery|
|US3605123 *||Apr 29, 1969||Sep 20, 1971||Melpar Inc||Bone implant|
|FR742618A *|| ||Title not available|
|GB1215737A *|| ||Title not available|
|1|| *||Total Hip Arthroplasty, Using a Universal Joint Device The Tronzo Total Hip System, Advertisement by Richards Mfg. Co., The Journal of Bone and Joint Surgery, Vol. 53 B, No. 2, May 1971.|
|2|| *||Vitallium Surgical Appliances (catalog), Austenal Co., New York, N.Y. 1964, McBride Acetabulum Cups/No. 6429 on page 30 relied upon.|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3903549 *||Jun 12, 1974||Sep 9, 1975||William Minor Deyerle||Acetabular cup prosthesis component for total or subtotal hip prosthesis system|
|US4450592 *||Jan 8, 1982||May 29, 1984||Sulzer Brothers Limited||Joint socket for a hip joint prosthesis|
|US4612160 *||Apr 2, 1984||Sep 16, 1986||Dynamet, Inc.||Porous metal coating process and mold therefor|
|US4659331 *||Nov 28, 1983||Apr 21, 1987||Regents Of University Of Michigan||Prosthesis interface surface and method of implanting|
|US4681589 *||Jun 1, 1984||Jul 21, 1987||Tronzo Raymond G||Adjustable acetabular cup prosthesis as part of a total cup replacement system|
|US4714473 *||Jul 25, 1985||Dec 22, 1987||Harrington Arthritis Research Center||Knee prosthesis|
|US4715860 *||Aug 23, 1985||Dec 29, 1987||The Regents Of The University Of California||Component for an artificial hip joint|
|US4743262 *||Mar 24, 1987||May 10, 1988||Tronzo Raymond G||Acetabular cup prosthesis|
|US4752296 *||Feb 18, 1986||Jun 21, 1988||Buechel Frederick F||Prosthesis with interlocking fixation and providing reduction of stress shielding|
|US4769041 *||Jun 27, 1986||Sep 6, 1988||Sulzer Brothers Limited||Hip joint socket|
|US4792337 *||Oct 6, 1987||Dec 20, 1988||Protek Ag||Acetabulum part for a total hip prosthesis|
|US4795470 *||Apr 21, 1983||Jan 3, 1989||Volkmar Goymann||Two-part socket for hip-joint prosthesis|
|US4828565 *||Oct 23, 1986||May 9, 1989||Etienne Duthoit||Cotyloidal component for a non-cemented hip prosthesis|
|US4840632 *||May 21, 1986||Jun 20, 1989||Kampner Stanley L||Hip prosthesis|
|US4846839 *||Apr 8, 1988||Jul 11, 1989||Joint Medical Products Corporation||Apparatus for affixing a prosthesis to bone|
|US4851006 *||Apr 21, 1988||Jul 25, 1989||Finsbury (Instruments) Limited||Acetabulum|
|US4865605 *||Feb 2, 1988||Sep 12, 1989||Dines David M||Modular shoulder prosthesis|
|US4878915 *||Jan 4, 1989||Nov 7, 1989||Brantigan John W||Surgical prosthetic implant facilitating vertebral interbody fusion|
|US4883490 *||Mar 7, 1984||Nov 28, 1989||Indong Oh||Acetabular cup|
|US4883491 *||Oct 6, 1988||Nov 28, 1989||Joint Medical Products Corporation||Porous-coated artificial joints|
|US4904265 *||Sep 9, 1988||Feb 27, 1990||Boehringer Mannheim Corporation||Cementless acetabular implant|
|US4936863 *||May 13, 1988||Jun 26, 1990||Hofmann Aaron A||Hip prosthesis|
|US4944759 *||Sep 5, 1989||Jul 31, 1990||Joint Medical Products Corporation||Porous-coated artificial joints|
|US4955908 *||Jun 8, 1988||Sep 11, 1990||Sulzer Brothers Limited||Metallic intervertebral prosthesis|
|US4964868 *||Aug 27, 1987||Oct 23, 1990||Harrington Arthritis Research Center||Knee prosthesis|
|US4986833 *||May 5, 1989||Jan 22, 1991||Worland Richard L||Glenoid component for an artificial shoulder joint|
|US4990161 *||Sep 6, 1984||Feb 5, 1991||Kampner Stanley L||Anchor for a bone joint|
|US5004476 *||Oct 31, 1989||Apr 2, 1991||Tulane University||Porous coated total hip replacement system|
|US5019105 *||Aug 3, 1989||May 28, 1991||Biomet, Inc.||Acetabular cup prosthesis assembly|
|US5098434 *||Nov 28, 1990||Mar 24, 1992||Boehringer Mannheim Corporation||Porous coated bone screw|
|US5197989 *||Jan 17, 1991||Mar 30, 1993||Hinckfuss Bruce W||Two stage joint prosthesis|
|US5358532 *||Jun 16, 1992||Oct 25, 1994||Smith & Nephew Richards Inc.||Cementless acetabular cup|
|US5433750 *||Mar 12, 1993||Jul 18, 1995||Eska Medical Gmbh & Co.||Bone replacement with different regions of porosities|
|US5571193 *||Jun 11, 1992||Nov 5, 1996||Kampner; Stanley L.||Implant with reinforced resorbable stem|
|US5571198 *||Jan 21, 1994||Nov 5, 1996||David A. Drucker||Acetabular shell with selectively available bone screw holds|
|US5653765 *||Jan 3, 1995||Aug 5, 1997||Ortho Development Corporation||Modular prosthesis|
|US5725594 *||Feb 12, 1996||Mar 10, 1998||Ortho Development Corporation||Proximal conical stem|
|US5755806 *||Sep 30, 1996||May 26, 1998||Bristol-Myers Squibb Co.||Method of attaching spikes to an orthopaedic implant|
|US5911759 *||Sep 14, 1995||Jun 15, 1999||Rogala; Piotr||For implantation in a joint|
|US5925077 *||Apr 2, 1997||Jul 20, 1999||Biomet, Inc.||Apparatus and method for plugging holes in an acetabular shell component|
|US5972032 *||Dec 5, 1997||Oct 26, 1999||Sulzer Orthopedics Inc.||Acetabular shell having flared rim and fixation spikes|
|US6063124 *||Mar 1, 1999||May 16, 2000||Amstutz; Harlan C.||Acetabular cup prosthesis insertion and removal assembly and technique|
|US6139582 *||Nov 21, 1997||Oct 31, 2000||Depuy Orthopaedics, Inc.||Acetabular cup with bi-directional steps|
|US6156069 *||Feb 4, 1999||Dec 5, 2000||Amstutz; Harlan C.||Precision hip joint replacement method|
|US6312470||Aug 24, 2000||Nov 6, 2001||Martin M. Malawer||Acetabulum spacing device|
|US6332896||Nov 12, 1998||Dec 25, 2001||Ortho Development Corporation||Orthopaedic implant with proximal collar|
|US6364910||Jul 11, 2001||Apr 2, 2002||Biomet, Inc.||Method and apparatus for use of a glenoid component|
|US6416551||May 19, 2000||Jul 9, 2002||Waldemar Link (Gmbh & Co.)||Intervertebral endoprosthesis with a toothed connection plate|
|US6458161 *||Feb 23, 2001||Oct 1, 2002||Biomet, Inc.||Method and apparatus for acetabular reconstruction|
|US6537321 *||Nov 21, 1997||Mar 25, 2003||Plus Endoprothetik Ag||Joint base for a hip joint endoprosthesis|
|US6638311||Nov 5, 2001||Oct 28, 2003||Benoist Girard Sas||Prosthesis bearing component|
|US6641615||Nov 5, 2001||Nov 4, 2003||Martin M. Malawer||Acetabulum spacing device|
|US6758864||Nov 5, 2001||Jul 6, 2004||Benoist Girard Sas||Cementless prosthetic bearing element|
|US6896703 *||Oct 19, 2001||May 24, 2005||Mathys Medizinaltechnik Ag||Expandable socket|
|US6908486 *||Jan 23, 2003||Jun 21, 2005||Mayo Foundation For Medical Education And Research||Modular acetabular anti-protrusio cage and porous ingrowth cup combination|
|US6913624||Oct 9, 2001||Jul 5, 2005||Ortho Development Corporation||Orthopaedic implant with proximal collar|
|US7018417||Jul 31, 2001||Mar 28, 2006||Xaver Kuoni||Artificial socket|
|US7323013||Sep 13, 2002||Jan 29, 2008||Encore Medical Asset Corporation||Differential porosity prosthetic hip system|
|US7527631||Mar 31, 2003||May 5, 2009||Depuy Products, Inc.||Arthroplasty sizing gauge|
|US7597715||Feb 17, 2006||Oct 6, 2009||Biomet Manufacturing Corp.||Method and apparatus for use of porous implants|
|US7635391 *||Jan 28, 2005||Dec 22, 2009||Zimmer, Gmbh||Endoprosthesis for part of the pelvis|
|US7635447||Feb 17, 2006||Dec 22, 2009||Biomet Manufacturing Corp.||removing the spacing agent by melting or sublimation a moldings which contains the mixture of metal/alloy powder and a spacing agent ammonium bicarbonate, to form a plurality of pores; promotes soft and hard tissue ingrowth|
|US7713306||Nov 3, 2003||May 11, 2010||Biomet Manufacturing Corp.||Method and apparatus for acetabular reconstruction|
|US7727282||Mar 17, 2006||Jun 1, 2010||Biomet Manufacturing Corp.||Method and apparatus for implanting a prosthesis|
|US7879042||Mar 5, 2004||Feb 1, 2011||Depuy Products, Inc.||Surface replacement extractor device and associated method|
|US7947220||Dec 22, 2006||May 24, 2011||Smith & Nephew, Inc.||Method of sterilizing an orthopaedic implant|
|US8021432||Oct 11, 2006||Sep 20, 2011||Biomet Manufacturing Corp.||Apparatus for use of porous implants|
|US8025841||Jan 31, 2011||Sep 27, 2011||Smith & Nephew, Inc.||Method of sterilizing an orthopaedic implant|
|US8066778||Feb 22, 2007||Nov 29, 2011||Biomet Manufacturing Corp.||Porous metal cup with cobalt bearing surface|
|US8070752||Jan 9, 2008||Dec 6, 2011||Biomet Manufacturing Corp.||Patient specific alignment guide and inter-operative adjustment|
|US8070755||Mar 24, 2009||Dec 6, 2011||Depuy Products, Inc.||Joint arthroplasty kit and method|
|US8092465||May 31, 2007||Jan 10, 2012||Biomet Manufacturing Corp.||Patient specific knee alignment guide and associated method|
|US8100984 *||Aug 9, 2004||Jan 24, 2012||Smith & Nephew, Inc.||Acetabular shell and liner with sterilization channels|
|US8105327||Mar 5, 2004||Jan 31, 2012||Depuy Products, Inc.||Punch, implant and associated method|
|US8123814||Jun 26, 2007||Feb 28, 2012||Biomet Manufacturing Corp.||Method and appartus for acetabular reconstruction|
|US8133234||Feb 20, 2009||Mar 13, 2012||Biomet Manufacturing Corp.||Patient specific acetabular guide and method|
|US8170641||Feb 20, 2009||May 1, 2012||Biomet Manufacturing Corp.||Method of imaging an extremity of a patient|
|US8182541||Apr 9, 2009||May 22, 2012||Depuy Products, Inc.||Extended articulation orthopaedic implant|
|US8197550||Sep 14, 2009||Jun 12, 2012||Biomet Manufacturing Corp.||Method and apparatus for use of porous implants|
|US8241293||Feb 26, 2010||Aug 14, 2012||Biomet Manufacturing Corp.||Patient specific high tibia osteotomy|
|US8265949||Sep 27, 2007||Sep 11, 2012||Depuy Products, Inc.||Customized patient surgical plan|
|US8266780||Feb 27, 2008||Sep 18, 2012||Biomet Manufacturing Corp.||Method and apparatus for use of porous implants|
|US8277728||Sep 19, 2011||Oct 2, 2012||Smith & Nephew, Inc.||Method of sterilizing an orthopaedic implant|
|US8282646||Feb 29, 2008||Oct 9, 2012||Biomet Manufacturing Corp.||Patient specific knee alignment guide and associated method|
|US8282649||Oct 13, 2009||Oct 9, 2012||Depuy Products, Inc.||Extended articulation orthopaedic implant|
|US8292967||Dec 5, 2005||Oct 23, 2012||Biomet Manufacturing Corp.||Method and apparatus for use of porous implants|
|US8298237||Feb 4, 2008||Oct 30, 2012||Biomet Manufacturing Corp.||Patient-specific alignment guide for multiple incisions|
|US8343159||Sep 29, 2008||Jan 1, 2013||Depuy Products, Inc.||Orthopaedic bone saw and method of use thereof|
|US8357111||Sep 30, 2007||Jan 22, 2013||Depuy Products, Inc.||Method and system for designing patient-specific orthopaedic surgical instruments|
|US8357166||Sep 29, 2008||Jan 22, 2013||Depuy Products, Inc.||Customized patient-specific instrumentation and method for performing a bone re-cut|
|US8361076||Sep 29, 2008||Jan 29, 2013||Depuy Products, Inc.||Patient-customizable device and system for performing an orthopaedic surgical procedure|
|US8366713||Mar 31, 2003||Feb 5, 2013||Depuy Products, Inc.||Arthroplasty instruments and associated method|
|US8377066||Sep 22, 2010||Feb 19, 2013||Biomet Manufacturing Corp.||Patient-specific elbow guides and associated methods|
|US8377068||Sep 29, 2008||Feb 19, 2013||DePuy Synthes Products, LLC.||Customized patient-specific instrumentation for use in orthopaedic surgical procedures|
|US8398645||Sep 29, 2008||Mar 19, 2013||DePuy Synthes Products, LLC||Femoral tibial customized patient-specific orthopaedic surgical instrumentation|
|US8398646||Nov 23, 2011||Mar 19, 2013||Biomet Manufacturing Corp.||Patient-specific knee alignment guide and associated method|
|US8407067||Aug 31, 2010||Mar 26, 2013||Biomet Manufacturing Corp.||Method and apparatus for manufacturing an implant|
|US8444646||Apr 9, 2009||May 21, 2013||Depuy Products, Inc.||Bone preparation tool kit and associated method|
|US8473305||Jun 12, 2009||Jun 25, 2013||Biomet Manufacturing Corp.||Method and apparatus for manufacturing an implant|
|US8486150||Apr 7, 2011||Jul 16, 2013||Biomet Manufacturing Corp.||Patient-modified implant|
|US8532807||Jun 6, 2011||Sep 10, 2013||Biomet Manufacturing, Llc||Pre-operative planning and manufacturing method for orthopedic procedure|
|US8535387||Mar 7, 2011||Sep 17, 2013||Biomet Manufacturing, Llc||Patient-specific tools and implants|
|US8545506||Oct 30, 2009||Oct 1, 2013||DePuy Synthes Products, LLC||Cutting guide for use with an extended articulation orthopaedic implant|
|US8551181||Feb 27, 2012||Oct 8, 2013||Biomet Manufacturing, Llc||Method and apparatus for acetabular reconstruction|
|US8568487||Dec 23, 2010||Oct 29, 2013||Biomet Manufacturing, Llc||Patient-specific hip joint devices|
|US8591516||Nov 29, 2010||Nov 26, 2013||Biomet Manufacturing, Llc||Patient-specific orthopedic instruments|
|US8597365||Aug 4, 2011||Dec 3, 2013||Biomet Manufacturing, Llc||Patient-specific pelvic implants for acetabular reconstruction|
|US8603180||May 19, 2011||Dec 10, 2013||Biomet Manufacturing, Llc||Patient-specific acetabular alignment guides|
|US8608748||Sep 16, 2008||Dec 17, 2013||Biomet Manufacturing, Llc||Patient specific guides|
|US8608749||Mar 7, 2011||Dec 17, 2013||Biomet Manufacturing, Llc||Patient-specific acetabular guides and associated instruments|
|US8632547||May 12, 2011||Jan 21, 2014||Biomet Sports Medicine, Llc||Patient-specific osteotomy devices and methods|
|US8632604 *||Oct 20, 2010||Jan 21, 2014||Depuy International Limited||Medical implant device|
|US8668700||Apr 29, 2011||Mar 11, 2014||Biomet Manufacturing, Llc||Patient-specific convertible guides|
|US8702806 *||Jul 29, 2004||Apr 22, 2014||Depuy (Ireland) Limited||Acetabular implant and method for the production of said implant|
|US8715289||Apr 15, 2011||May 6, 2014||Biomet Manufacturing, Llc||Patient-specific numerically controlled instrument|
|US20090287311 *||Aug 6, 2007||Nov 19, 2009||Roman Preuss||Asymmetric design of hip socket for reducing socket deformations|
|US20120022663 *||Jun 8, 2011||Jan 26, 2012||Smith & Nephew, Inc.||Implant components and methods|
|US20120253468 *||Oct 20, 2010||Oct 4, 2012||Depuy International Limited||Medical implant device|
|EP0149425A1 *||Dec 14, 1984||Jul 24, 1985||Mathys Co Robert||Glenoid cavity made of plastics|
|EP0169974A2 *||Apr 6, 1985||Feb 5, 1986||Gebrüder Sulzer Aktiengesellschaft||Rimless endoprosthesis for a hip joint cup|
|EP0169975A1 *||Apr 6, 1985||Feb 5, 1986||Gebrüder Sulzer Aktiengesellschaft||Rimless endoprosthesis for a hip joint cup|
|EP0179736A2 *||Oct 23, 1985||Apr 30, 1986||Mecron Medizinische Produkte Gmbh||Support element for an artificial acetabular cup|
|EP0225819A1 *||Oct 22, 1986||Jun 16, 1987||Etienne Duthoit||Acetabular cup for a hip prosthesis without cement|
|EP0241361A1 *||Apr 3, 1987||Oct 14, 1987||Claude Demeulenaere||Hip prosthesis|
|EP0309363A1 *||Apr 3, 1987||Mar 29, 1989||Claude Demeulenaere||Hip prosthesis|
|EP0923915A2 *||Nov 20, 1998||Jun 23, 1999||Johnson & Johnson Professional, Inc.||Acetabular cup with bi-directional steps|
|EP1057462A1 *||May 21, 1999||Dec 6, 2000||Waldemar Link (GmbH & Co.)||Intervertebral endoprosthesis with a toothed connection plate|
|EP1208819A1 *||Oct 29, 2001||May 29, 2002||Benoist Girard Sas||Cementless prosthetic bearing element|
|WO1996008214A1 *||Sep 14, 1995||Mar 21, 1996||Piotr Rogala||Implantation method and endoprosthesis to apply this implantation|
|WO2001085068A1 *||May 4, 2001||Nov 15, 2001||Schroeder Boersch Henrik||Endoprosthesis part for use in joint replacement, use of the same and production method therefor|
|WO2003011196A1 *||Jul 31, 2001||Feb 13, 2003||Hannes Hofer||Artificial socket|
| || |
|International Classification||A61F2/34, A61F2/46, A61F2/00, A61B17/86, A61F2/30|
|Cooperative Classification||A61F2/34, A61F2002/30892, A61F2002/30848, A61F2002/3412, A61F2002/3422, A61F2002/3451, A61F2002/30846, A61F2230/0054, A61F2/30767, A61F2002/30797, A61F2220/0025, A61F2002/4619, A61F2002/30841, A61B17/86, A61F2002/30176, A61F2002/3429, A61F2002/3427, A61F2002/30405, A61F2310/00011|
|European Classification||A61F2/34, A61F2/30L|