|Publication number||US3702611 A|
|Publication date||Nov 14, 1972|
|Filing date||Jun 23, 1971|
|Priority date||Jun 23, 1971|
|Publication number||US 3702611 A, US 3702611A, US-A-3702611, US3702611 A, US3702611A|
|Original Assignee||Fishbein Meyer|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (140), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 151 3,702,61 1 Fi shbein [451 Nov. 14, 1972 1 2,694,321 11/1954 Riza ..408/1 58 SURGICAL EXPANSIVE REAMER FOR HIP SOCKET 1 Primary Exdminer-Channing 1.. Pace  Inventor: Meyer Fishhein, 12020 Saltair Place, LosAngeles, Calif. 90049 Lilly  Filed: June 23, 1971  ABSTRACT  Appl. No.: 155,718 An expanding reamer is provided for surgical reaming of the acetabulum in hip surgery. The reamer includes a head with a convex end adapted to seat in a previ-  US. Cl. "HS/305233; figs/[115st ously prepared concavity in the cent a1 pan of the  In. A61, 17/32 A6) 17/16 B23b 51/00 acetabulum. This head pivotally mounts a set of radially expansive blades. It is telescopically mounted on  Field of Search..82/1.2 128/305, 312; 408/154, the end of a rotary drive Shaft and the drive'shaft l 408/157 159 mounts a cam actuator which engages cam elements to expand the cutters progressively in response to axial  l Cited thrust exerted on the drive shaft by the surgeon with UNI D STATES PATENTS I the rearner head seated in the acetabulum. A spring is used to contract the cutters when the reaming opera- 2,616,103 11/1952 Stecher ...408/1 58 X ion is interrupted 2,649,001 8/1953 Fennel! ..408/ 158 I 3,630,204 12/1971 Fishbein ..'......l28/ 305 7 Claims, 13 Drawing Figures 5/ J5 J a %5 Z J 1 5g 43 I J 15 w a a; 42 25 i 4 I Z? Z5 .16 I a 49 g .5; I Z5 l PATENTED 3.702.611
sum 1 OF 2 INVENTOR. M75)? EsHBE/N PATENTEDRHY I972 3. 702,61 1
sum 2 or 2 l NVENTOR. MYEIP .EsHBE/N ATTORNEY SURGICAL EXPANSIVE REAMER FOR HIP SOCKET FIELD OF THE INVENTION This invention relates to expanding reamers employed in the preparation of an acetabulum to receive a cup or artificial socket used in total-hip" reconstructive surgery.
BACKGROUND OF THE INVENTION To explain the expression total-hip surgery, consider the condition wherein the hip socket or acetabulum and the femoral head are badly deteriorated due to arthritis. In elderly patients particularly, this diseased condition dictates the removal of the head (ball) of the femur and its replacement by a polished metal ball with shaft anchored in the intramedullary canal of the femur. To provide a proper bearing surface for the ball, one that will not limit the normal motion of the leg, it is necessary to reform the normal socket, or acetabulum, reaming away the diseased bone and cartilage to make a new structural base to receive a metallic or plastic artificial socket matched to the artificial femoral head. The artificial socket is affixed withinthe reformed acetabulum by means of an acrylic cement, or other suitable means.
In shaping the acetabulum to receive the artificial socket, the acetabulum is undercut so as to provide a peripheral shoulder against which the cement and artificial socket are seated and thus anchored to the bony structure of the acetabulum.
To accomplish an undercut of the acetabulum, there was developed a reamer whose cutting blades could be manually expanded incrementally. To perform this undercutting task, this reamer, with blades in a retracted position, is inserted into the acetabulum, its location in the acetabulum being predetermined by a hole bored in the center'of the acetabulum. After inserting the expanding reamer into the acetabulum, a wheel crank which is connected to a cam is rotated to extend the blades into contact with the surface of the acetabulum. The expanding reamer is then rotated, making the first cut into the walls of the acetabulum bony structure. The cutting operation is stopped momentarily, and a second extension of the blades is made by an angular rotation of the wheel crank to force the blades into a second, deeper engagement with the acetabulum wall. The reamer is rotated again and the cut thus deepened. Such progressive incremental cuts are performed until the surgeon deems the size of the undercut sufficient to form a shelf in the acetabulum to which the cement matrix and artificial socket may be satisfactorily anchored.
The object of this invention is to produce an expanding reamer whose blade extension may be controlled while the reamer is rotating, without need to stop the cutting operation to progressively extend the blades as bony structure is removed. Further objects are to simplify current reamer designs so that unskilled persons can easily disassemble for cleaning and reassembly without the use of any tools, and to improve upon current expanding reamers, which are subject to blades becoming disengaged from their cam actuators, in a way that eliminates this danger completely.
BRIEF SUMNIARY OF THE INVENTION The invention provides a reamer head which is telescopically mounted on the end of a powered drive shaft. This head has a convex, semi-spherical end face of the same diameter and radius of curvature as a previously prepared concavity formed in the central region of the acetabulum; and the purpose, of course, is to extend or widen this previously prepared concavity, on the same spherical curve, using continuously progressively expanding reamer cutters, or under reamer cutters, so as to complete the new socket, but leaving an undercut shoulder around its periphery. The extremity of the drive shafi within the reamer head has a cam actuator which coacts with cam formations on the expansive cutters, which are pivotally mounted in or on the reamer head so as to expand in radial planes of the drive shaft axis. Thus, with the convex end of the reamer head seated in the acetabulum, as earlier described, axial thrust on the rotating drive shaft operates through the cam actuator and cam formations to expand the cutters continuously and progressively as the work proceeds. Maintenance of this axial force, and the outward extension of the cutters, keeps the cutters in direct contact with the wall of the acetabulum as it is cut away. At the point where the surgeon feels that the acetabulum wall has been fully prepared, the rotation is stopped and axial thrust removed. On removal of the axial thrust, a compression spring returns the cutters to their contracted static position, and also returns the drive shaft to its original extended position relative to the reamer head.
BRIEF DESCRIPTION OF THE DRAWINGS In drawings, showing present illustrative embodiments of the invention:
FIG. 1, is a side elevation of a reamer in accordance with the invention, with parts broken away;
FIG. 2, is a front elevation of the reamer of FIG. 1;
FIG. 3, is a section taken on the broken line 3-3 of FIG. 2;
FIG. 3a, is a view showing a fragmentary portion of FIG. 3, but with the reamer cutters in expanded position;
FIG. 4, is a rear elevational view of the reamer of FIG. 1; 7
FIG. 5, is a section taken on line 55 of FIG. 3;
FIG. 6, is a section taken on line 66 of FIG. '3',
FIG. 7, is a side elevational view of a tool used in the initial preparation of the socket prior to use of the invention;
FIG. 8, is a front elevational view of the tool of FIG.
FIG. 9, is a diagram illustrating the preparation of a hip socket which has been prepared with use first of the reamers of FIGS. 7-8, and next the reamers of the present invention;
FIG. 10, is a side elevational view of another embodiment of the invention;
FIG. 11, is a longitudinal sectional view of the embodiment of FIG. 10 being taken on the section line 11-11 ofFIG. 12;
FIG. 12, is a section taken on line 12l2 of FIG. 1 1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference is first had to the embodiment of the invention shown in FIGS. 1-6. A shaft 20, adapted at one end, as at 21, for coupling to an electric drill motor, not shown, has telescopically mounted on its opposite end a hollow cylindrical reamer head 22 with a convex, forward, semispherical end 23. Pinned onto a reduced end portion of shaft is an actuator comprising a stem 24 having a radially enlarged cylindrical head or piston 25 on which the head 22 is slidably mounted. A coil compression spring 26 seats in a socket 27 in the end of stem 24, and bears at its other end against a radially slotted disc 28 seated at the inner end of the bore 30 in hollow head 22, against the inside surface 30 of end wall 23.
The disc 28 has three radial slots 32, and aligned therewith are three longitudinal slots 34 in the cylindrical side wall of head 22, as well as three radial slots 35 in the piston 25. These sets of slots are spaced apart by 120 and afford accommodation for three radially expansive reamer blades or cutters 36.
The rearward end of the cylindrical side wall of head 22 is reduced and screw threaded to receive a lefthand threaded nut which confines a disc 42 that shoulders against the end of the head 22, and forms a closure and abutment facing the piston 25 mounted on the end of shaft 20. Disc 42 mounts a hollow shaft 42' containing bearing bushings 43 for the drive shaft 20.
The three cutters 36 are pivotally mounted inside the nose of the head 22, by arrangements best seen in FIGS. 3, 3a, and 5. These include three radially disposed slots 45 in the inner face of end wall 23, merging with the three slots 34 in the side wall of the head, as seen best in FIG. 5. These slots 45 receive the cutter tails 47 which are provided with cross-pivot pins 48 receivable in half-round grooves 49 sunk into the inner side of end wall 23, crosswise of but not as deep as the slots 45. The disc 28 held in place by the spring 26, engages and confines the pins 48, and thus holds them pivotally seated in the grooves 49 under spring compression.
FIG. 3 shows the cutters 36 pivoted inward to their normal contracted position, with their inner edges 54 parallel to and in engagement against the stem 24.
The spring 26 is at this time expanded, and the cutter head 22 longitudinally extended to its maximum relative to the shaft 20 on which it is telescopically mounted. The cutters 36 have convex, bevelled cutter edges 54 which in the limiting contracted position of FIG. 3, emerge only to a small degree, appropriate for the beginning of a reaming cut, outside the slots 35 in the head 22.
FIG. 3a shows the cutter head with cutters fully expanded. The contour of the convex end 23 of the cutter head is substantially spheric, and the convex cutter edges 54, when the cutters are expanded, are substantial continuations of this spheric or semi-spheric contour.
To progressively expand the cutters from the position of FIG. 3 to that of FIG. 3a, the following means have been provided: pins 60 are set into piston 25 transversely across slots 35, and these pins engage in cam slots 62 formed in the cutters 36. These slots open through the rearward ends of the cutters to enable assembly with the pins 60, and have initial portions 63 parallel to the axis of the shaft 20, and secondary camming portions 64 which converge toward said shaft. Accordingly, if head 23 is supported, and shaft 20 subjected to an axial force, to the left in the drawings, the shaft progressively compresses spring 26, and the pins 60, working in the angular portions 64 of the slots 62, cam the cutters outwardly about the pivots 48. Thus, assuming an electric drill motor, not shown, to be coupled to the shaft 20, the head of the reamer seated in a concave cavity already formed in the hip socket and the drill motor operated to rotate the shaft, forward pressure on the drill motor forces the shaft 20 forwardly, and the cutters are expanded in proportion to the pressure exerted until their limit of expansion is reached. By progressive application of pressure, the reamer cutters are progressively expanded, and the expansion can be continuous, and as rapid as is consistent with clean, stable cutting.
Reference is next directed to FIG. 9, showing the acetabulum of a hip, which has been initially prepared for use of the present reamer by use of a known cutter 58 shown in FIGS. 7 and 8. This tool has a shank 60 for rotation by a drill motor, and a head 61 having a convex face 62, with an arcuate cutter blade 63 mounted therein, conforming to but rising a short distance above the face 62, bevelled in back of sharpened cutter edges 64. This cutter is used first to form the central portion of the socket, along the arc a FIG. 9. The bone will remain at this stage outside the cylindrical outline indicated at c. The tool of the invention is then inserted and seated against the central portion of the spherical socket as thus partly prepared (along region a), and then operated as described just above. The cutters 36 will then progressively expand responsively to the axial force exerted by the surgeon on the drill motor, to make a final cut as out to the line r. The cuts are manipulated by the surgeon generally so that the cut at r leaves a shelf or shoulder at s. The artificial plastic socket is then cemented in place according to techniques now in use, making use of the shoulder s to assure good anchorage.
The cutter 58 in some case is formed with a center point so as to form a conical center hole 71 in the socket, and in such case, the head of the reamer may, if desired, be formed with a center cone 72 for seating in this center hole, although this is not essential.
FIGS. 10 to 12 show a modification, having a number of parts corresponding generally and substantially exactly in function to components of the first described embodiment. These will be identified by like reference numerals but with the suffix a added in the embodiment of FIGS. 10-12. Redescription of these similar parts will not be required.
One difference to be pointed out in the embodiment of FIGS. 10-12 is the substitution for the center point of a cylindrical centering hub 74 which is adapted for insertion and free rotation in a hole previously drilled at the inner end of the acetabulum. The spring 26a seats in a socket 75 inside this hub and there is in this case no disc such as the disc 28 of FIGS. 1-6. The cross pins 28a are confined but loosely enough to permit pivoting by hold down screws 77.
- preferred embodiments of the invention but it will be understood that these are for illustrative purposes only and that various changes in design, structure and arrangement may be made without departing from the spirit and scope of the appended claims. 1
What is claimed is: r
1. A rotary bone rearner for use in hip surgery, comprising:
a drive shaft having a rearward end and forward end adapted for rotation from its rearward end by a driver;
a cutter head slidably mounted on the forward end portion of said shaft for movement relative thereto between longitudinally extended and longitudinally contracted positions, said cutter head having a convex forward end wall adapted to seat in a previously prepared concavity in the acetabulum;
a plurality of cutter blades pivotally mounted in said cutter head to swing in spaced radial planes through the longitudinal axis of said shaft between radially contracted and expanded positions;
a compression spring acting between said shaft and said cutter head to yieldingly urge said shaft and cutter head toward a longitudinally extended position of said shaft relative to said head, and
actuator means on the forward extremity of said shaft for operatively engaging said cutter blades to progressively expand them radially in response to movement of said shaft from said longitudinally extended position toward said longitudinally contracted position.
2. The subject matter of claim 1, wherein said actuator means includes carnming means interacting said shaft and said cutters for radially expanding said cutters in response to relative movement of said shaft toward said cutter head.
3. The subject matter of claim 2, wherein said cutter blades have cam slots convergent toward the forward end of the cutter head, and
cam actuating pins mounted on said shaft and extending transversely through said slots.
4. The subject matter of claim 1, wherein said cutter head comprises a'hollow cylinder, including also:
means ,detachably secured to the rearward end of said cutter head including a rear closure wall for said hollow head,
a bearing sleeve for said shaft fixed to said closure wall and affording said slidable mounting of said head on said forward end portion of said shaft, and
said forward extremity of said shaft having thereon an enlarged head normally yieldingly seated against the inner side of said closure wall by said compression spring.
5. The subject matter of claim 1, including carnming means interacting between the forward end portion of said shaft and said cutters for radially expanding said cutters in response to relative displacement of said forward end portion of said shaft inwards into said cutter head.
6. The subject matter of claim 1, wherein said cutter head comprises a hollow cylinder, including also:
means detachably secured to the rearward end of said cutter head including a rear closure wall for d holl wh aring leev or said shaft fixed to said closure wall and affording said-slidable mounting of said head on said forward end portion of said shaft,
said head comprising a piston slidable longitudinally inside said hollow cylinder,
radial slots in said piston receiving said expansive and contractive cutter blades,
cam slots in said cutter blades convergent toward the forward end of the cutter head, and
cam actuating pins mounted on said piston and extending transversely across said radial slots in said piston and through said cam slots in said cutter blades.
7. The subject matter of claim 1, including pivot pins on said cutter blades and half-rounded grooves sunk in the inner side of said forward end wall are used to pivotally mount said cutter blades, and
a removable plate seated against said end wall and engaged by said spring serves to confine said pivot pins in said grooves under the pressure of said spring.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2616103 *||Feb 8, 1947||Nov 4, 1952||Henry D Stecher||Method of boring and tapping|
|US2649001 *||Jun 8, 1951||Aug 18, 1953||Fennell Frank||Hole burring tool|
|US2694321 *||Jul 2, 1953||Nov 16, 1954||Riza Eugene T||Hole planer and burring tool|
|US3630204 *||Jun 24, 1970||Dec 28, 1971||Fishbein Meyer||Blade for bone reamer|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3943916 *||Dec 26, 1974||Mar 16, 1976||Leslie Vadas||Surgical instrument for conization of the cervix|
|US4004581 *||Sep 9, 1975||Jan 25, 1977||Friedrichsfeld Gmbh||Tool for forming a bed in a hip bone to receive an artificial acetabulum|
|US4023572 *||Aug 5, 1975||May 17, 1977||Hanfried Weigand||Milling tool for preparing a joint socket in the prosthetic replacement of a joint|
|US4116200 *||Oct 1, 1976||Sep 26, 1978||Aesculap-Werke Aktiengesellschaft Vormals Jetter & Scheerer||Milling tool for surgical purposes|
|US4130371 *||Jul 11, 1977||Dec 19, 1978||Sandvik Aktiebolag||Cutting insert and rotary cutter tool|
|US4131116 *||May 2, 1977||Dec 26, 1978||Pevrick Engineering Company, Inc.||Rotary bone cutter for shaping sockets|
|US4271849 *||May 29, 1979||Jun 9, 1981||Orthoplant Orthopadische Implantate Gmbh & Co.||Apparatus for producing relief grooves in pan-shaped bones|
|US4273117 *||Aug 24, 1979||Jun 16, 1981||Neuhaeuser Hans G||Apparatus for drilling bone|
|US4473070 *||Jan 5, 1983||Sep 25, 1984||Regents Of The University Of Michigan||Intramedullary reamer|
|US4621637 *||Jul 30, 1984||Nov 11, 1986||Meyer Fishbein||Surgical device for removing bone and tissue from joint members|
|US4712951 *||Aug 26, 1985||Dec 15, 1987||Brown Byron L||Tool for cutting annular groove|
|US4946461 *||Sep 29, 1988||Aug 7, 1990||Fischer William B||Tool for removing the ball of the femur|
|US5015255 *||May 10, 1989||May 14, 1991||Spine-Tech, Inc.||Spinal stabilization method|
|US5062845 *||May 10, 1989||Nov 5, 1991||Spine-Tech, Inc.||Method of making an intervertebral reamer|
|US5336226 *||Aug 11, 1992||Aug 9, 1994||Chapman Lake Instruments, Inc.||Bone face cutter|
|US5376092 *||Nov 18, 1993||Dec 27, 1994||Orthopaedic Innovations, Inc.||Reamer for shaping bone sockets|
|US5445639 *||Aug 13, 1991||Aug 29, 1995||Spine-Tech, Inc.||Intervertebral reamer construction|
|US5571106 *||May 17, 1995||Nov 5, 1996||International Business Machines Corporation||Surgical cutting instrument|
|US5709688 *||Jun 7, 1995||Jan 20, 1998||Othy, Inc.||Acetabular reamer cup and method of producing the same|
|US5830215 *||Jun 6, 1997||Nov 3, 1998||Incavo; Stephen J.||Removal apparatus and method|
|US5976144 *||Mar 18, 1998||Nov 2, 1999||Vozeh Equipment Corp.||Hollow dome reamer with removable teeth|
|US6168599 *||Apr 14, 1997||Jan 2, 2001||Allan S. Frieze||Long bone reamer|
|US6221076||Jan 21, 1998||Apr 24, 2001||Astra Aktiebolag||Bone reamer for sharping bone sockets or cavities during orthopaedic surgery|
|US6283971||Apr 25, 2000||Sep 4, 2001||Randy S. Temeles||Expandable acetabular reaming system|
|US6383188 *||Feb 13, 2001||May 7, 2002||The Spineology Group Llc||Expandable reamer|
|US6409732 *||Jul 9, 1999||Jun 25, 2002||Othy, Inc.||Tool driver|
|US6428543||Aug 13, 1999||Aug 6, 2002||Othy, Inc.||Acetabular reamer cup and method of producing the same|
|US6711976 *||May 14, 2001||Mar 30, 2004||Ecoroll Ag Werkzeugtechnik||Skiving head and process for skiving cylinders and cylinder tubes|
|US6814734||Jan 17, 2002||Nov 9, 2004||Sdgi Holdings, Inc,||Surgical instrumentation and method for forming a passage in bone having an enlarged cross-sectional portion|
|US6884246 *||Nov 10, 2000||Apr 26, 2005||Depuy International Limited||Bone resection device|
|US6902568 *||Mar 19, 2002||Jun 7, 2005||Hassan Serhan||Vertebral endplate milling device|
|US6918914 *||Jul 10, 2003||Jul 19, 2005||Clayton T. Bauer||Minimally invasive adjustable acetubular reamer|
|US6939351 *||Dec 9, 2003||Sep 6, 2005||Concept Matrix, Llc||Diskectomy instrument and method|
|US7008430||Jan 31, 2003||Mar 7, 2006||Howmedica Osteonics Corp.||Adjustable reamer with tip tracker linkage|
|US7011662 *||Dec 21, 2001||Mar 14, 2006||Precimed Sa||Surgical reamer|
|US7217271 *||Sep 11, 2003||May 15, 2007||Symmetry Medical, Inc.||Orthopaedic reamer driver for minimally invasive surgery|
|US7220264||Mar 12, 2003||May 22, 2007||Biomet Manufacturing Corp.||Minimally invasive reamer|
|US7237556||Feb 11, 2003||Jul 3, 2007||Smith & Nephew, Inc.||Image-guided fracture reduction|
|US7278996 *||Nov 12, 2004||Oct 9, 2007||Symmetry Medical, Inc.||Orthopaedic reamer assembly|
|US7429264 *||Jun 15, 2004||Sep 30, 2008||Warsaw Orthopedic, Inc.||Minimally invasive deployable cutting instrument|
|US7473254||May 8, 2003||Jan 6, 2009||Precimed S.A.||Pivoting bone reamer for minimally invasive joint surgery|
|US7477926||Mar 30, 2005||Jan 13, 2009||Smith & Nephew, Inc.||Methods and apparatuses for providing a reference array input device|
|US7479144||Dec 10, 2004||Jan 20, 2009||Symmetry Medical, Inc.||Collapsible orthopaedic reamer|
|US7513899||Jan 27, 2006||Apr 7, 2009||Howmedica Osteonics Corp.||Acetabular reamer connection mechanism|
|US7527631||Mar 31, 2003||May 5, 2009||Depuy Products, Inc.||Arthroplasty sizing gauge|
|US7547307||Aug 27, 2002||Jun 16, 2009||Smith & Nephew, Inc.||Computer assisted knee arthroplasty instrumentation, systems, and processes|
|US7608076||Apr 25, 2006||Oct 27, 2009||Greatbatch Medical S.A.||Minimally invasive collapsible surgical reamer|
|US7611515||Mar 2, 2006||Nov 3, 2009||Symmetry Medical, Inc.||Orthopaedic reamer driver for minimally invasive surgery|
|US7632275 *||Jul 1, 2004||Dec 15, 2009||Howmedica Osteonics Corp.||Orthopedic reamer|
|US7674265||Apr 24, 2003||Mar 9, 2010||Warsaw Orthopedic, Inc.||Minimally invasive instruments and methods for preparing vertebral endplates|
|US7699849||May 23, 2005||Apr 20, 2010||Concept Matrix, Llc||Diskectomy instrument with disposable blade head|
|US7722615||May 24, 2006||May 25, 2010||Gary Botimer||Expandable surgical reaming tool|
|US7749225||Aug 6, 2004||Jul 6, 2010||Warsaw Orthopedic, Inc.||Surgical instrumentation and method for forming a passage in bone having an enlarged cross-sectional portion|
|US7764985||Jul 23, 2004||Jul 27, 2010||Smith & Nephew, Inc.||Surgical navigation system component fault interfaces and related processes|
|US7785331 *||Jun 30, 2005||Aug 31, 2010||Depuy Products, Inc.||Acetabular liner extraction device, kit and associated method|
|US7794467||Nov 15, 2004||Sep 14, 2010||Smith & Nephew, Inc.||Adjustable surgical cutting systems|
|US7803160 *||Jan 10, 2003||Sep 28, 2010||Waldemar Link Gmbh & Co. Kg||Surgical instrument for grinding the cotyloid cavity|
|US7850692||Aug 1, 2002||Dec 14, 2010||Greatbatch Medical S.A.||Minimally invasive surgical reamer and connection|
|US7850693 *||Jul 27, 2007||Dec 14, 2010||Symmetry Medical, Inc.||Orthopaedic reamer assembly|
|US7862570||Oct 3, 2003||Jan 4, 2011||Smith & Nephew, Inc.||Surgical positioners|
|US7867233 *||Jun 25, 2003||Jan 11, 2011||Warsaw Orthopedic, Inc.||Transpedicular intervertebral disk access methods and devices|
|US7879042||Mar 5, 2004||Feb 1, 2011||Depuy Products, Inc.||Surface replacement extractor device and associated method|
|US7901405||Oct 31, 2007||Mar 8, 2011||Greatbatch Medical S.A.||Minimally invasive surgical reamer and connection|
|US7927376||Jun 30, 2005||Apr 19, 2011||Depuy Products, Inc.||Expandable acetabular liner extraction device, cup assembly and associated method|
|US7931689||Mar 19, 2004||Apr 26, 2011||Spineology Inc.||Method and apparatus for treating a vertebral body|
|US7935117||Sep 21, 2007||May 3, 2011||Depuy Products, Inc.||Expandable proximal reamer|
|US8038679 *||May 23, 2007||Oct 18, 2011||Stryker Trauma Gmbh||Reaming device|
|US8070755||Mar 24, 2009||Dec 6, 2011||Depuy Products, Inc.||Joint arthroplasty kit and method|
|US8105327||Mar 5, 2004||Jan 31, 2012||Depuy Products, Inc.||Punch, implant and associated method|
|US8109942||Apr 21, 2005||Feb 7, 2012||Smith & Nephew, Inc.||Computer-aided methods, systems, and apparatuses for shoulder arthroplasty|
|US8177788||Feb 22, 2006||May 15, 2012||Smith & Nephew, Inc.||In-line milling system|
|US8182541||Apr 9, 2009||May 22, 2012||Depuy Products, Inc.||Extended articulation orthopaedic implant|
|US8277452||Dec 11, 2003||Oct 2, 2012||Depuy International Limited||Bone resection device|
|US8282649||Oct 13, 2009||Oct 9, 2012||Depuy Products, Inc.||Extended articulation orthopaedic implant|
|US8287538||Jan 14, 2009||Oct 16, 2012||Conventus Orthopaedics, Inc.||Apparatus and methods for fracture repair|
|US8323284||Sep 24, 2008||Dec 4, 2012||Symmetry Medical Manufacturing, Inc.||Adapter driver for orthopaedic reamer|
|US8366713 *||Mar 31, 2003||Feb 5, 2013||Depuy Products, Inc.||Arthroplasty instruments and associated method|
|US8398642||Sep 18, 2008||Mar 19, 2013||Symmetry Medical, Inc.||Dual reamer driver|
|US8425518||Sep 23, 2011||Apr 23, 2013||Stryker Trauma Gmbh||Reaming device|
|US8439920||May 14, 2013||Symmetry Medical Manufacturing, Inc.||Adapter for a surgical reamer driver|
|US8444646||Apr 9, 2009||May 21, 2013||Depuy Products, Inc.||Bone preparation tool kit and associated method|
|US8454609||Aug 21, 2008||Jun 4, 2013||École De Technologie Supérieure||Acetabular reamer|
|US8460296||Feb 17, 2010||Jun 11, 2013||Warsaw Orthopedic, Inc.||Minimally invasive instruments and methods for preparing vertebral endplates|
|US8491597||Dec 1, 2010||Jul 23, 2013||Smith & Nephew, Inc. (partial interest)||Surgical positioners|
|US8497023||Aug 5, 2009||Jul 30, 2013||Biomimedica, Inc.||Polyurethane-grafted hydrogels|
|US8518063||Jul 2, 2008||Aug 27, 2013||Russell A. Houser||Arteriotomy closure devices and techniques|
|US8545506||Oct 30, 2009||Oct 1, 2013||DePuy Synthes Products, LLC||Cutting guide for use with an extended articulation orthopaedic implant|
|US8632546||Mar 23, 2011||Jan 21, 2014||DePuy Synthes Products, LLC||Expandable proximal reamer|
|US8679190||Mar 12, 2012||Mar 25, 2014||The Board Of Trustees Of The Leland Stanford Junior University||Hydrogel arthroplasty device|
|US8814943||May 1, 2013||Aug 26, 2014||DePuy Synthes Products,LLC||Bone preparation tool kit and associated method|
|US8834484||Nov 14, 2011||Sep 16, 2014||Biomet Manufacturing, Llc||Surgical instrument including angle adjustment mechanism and quick-connect mechanism|
|US8853294||May 29, 2013||Oct 7, 2014||Biomimedica, Inc.||Polyurethane-grafted hydrogels|
|US8882776||Aug 29, 2013||Nov 11, 2014||DePuy Synthes Products, LLC||Extended articulation orthopaedic implant|
|US8883915||Aug 26, 2011||Nov 11, 2014||Biomimedica, Inc.||Hydrophobic and hydrophilic interpenetrating polymer networks derived from hydrophobic polymers and methods of preparing the same|
|US8906022||Mar 8, 2011||Dec 9, 2014||Conventus Orthopaedics, Inc.||Apparatus and methods for securing a bone implant|
|US8956357||Jan 30, 2012||Feb 17, 2015||DePuy Synthes Products, LLC||Expandable proximal reamer|
|US8961518||Jan 19, 2011||Feb 24, 2015||Conventus Orthopaedics, Inc.||Apparatus and methods for bone access and cavity preparation|
|US8961541||Oct 31, 2008||Feb 24, 2015||Cardio Vascular Technologies Inc.||Vascular closure devices, systems, and methods of use|
|US8974458||Jan 25, 2013||Mar 10, 2015||DePuy Synthes Products, LLC||Arthroplasty instruments and associated method|
|US8992567||Sep 21, 2009||Mar 31, 2015||Cardiovascular Technologies Inc.||Compressible, deformable, or deflectable tissue closure devices and method of manufacture|
|US9011443||Sep 20, 2012||Apr 21, 2015||Depuy Mitek, Llc||Low profile reamers and methods of use|
|US9107677 *||Jan 23, 2012||Aug 18, 2015||Greatbach Ltd.||Disposable surgical hemispherical cutter for convex and concave surfaces|
|US9107758||Aug 1, 2014||Aug 18, 2015||DePuy Synthes Products, Inc.||Bone preparation tool kit and associated method|
|US20040073224 *||Jul 10, 2003||Apr 15, 2004||Bauer Clayton T.||Minimally invasive adjustable acetubular reamer|
|US20040092988 *||Jun 25, 2003||May 13, 2004||Shaolian Samuel M.||Transpedicular intervertebral disk access methods and devices|
|US20040097947 *||Sep 11, 2003||May 20, 2004||Wolford Todd A.||Othopaedic reamer driver for minimally invasive surgery|
|US20040153080 *||Jan 31, 2003||Aug 5, 2004||Howmedica Osteonics Corp.||Adjustable reamer with tip tracker linkage|
|US20040193168 *||Mar 31, 2003||Sep 30, 2004||Long Jack F.||Arthroplasty instruments and associated method|
|US20040193175 *||Mar 31, 2003||Sep 30, 2004||Maroney Brian J||Arthroplasty sizing gauge|
|US20040215197 *||Apr 24, 2003||Oct 28, 2004||Smith Maurice M.||Minimally invasive instruments and methods for preparing vertebral endplates|
|US20050033303 *||Aug 6, 2004||Feb 10, 2005||Chappuis James L.||Surgical instrumentation and method for forming a passage in bone having an enlarged cross-sectional portion|
|US20050038439 *||Dec 9, 2003||Feb 17, 2005||Concept Matrix, Llc||Diskectomy instrument and method|
|US20050049601 *||Jan 10, 2003||Mar 3, 2005||Arnold Keller||Surgical instrument for grinding the cotyloid cavity|
|US20050085821 *||Nov 12, 2004||Apr 21, 2005||Symmetry Medical, Inc.||Orthopaedic reamer assembly|
|US20050113836 *||Nov 25, 2003||May 26, 2005||Lozier Antony J.||Expandable reamer|
|US20050203525 *||Aug 1, 2002||Sep 15, 2005||Michel White Patrick||Minimally invasive surgical reamer and connection|
|US20050209597 *||Mar 5, 2004||Sep 22, 2005||Long Jack F||Surface replacement extractor device and associated method|
|US20050216019 *||May 23, 2005||Sep 29, 2005||Eckman Walter W||Diskectomy instrument with disposable blade head|
|US20050216020 *||May 6, 2003||Sep 29, 2005||Marcus Orton||Assembly for use in orthopaedic surgery|
|US20050261694 *||May 6, 2003||Nov 24, 2005||Marcus Orton||Assembly for use in orthopaedic surgery|
|US20050277971 *||Jun 15, 2004||Dec 15, 2005||Melkent Anthony J||Minimally invasive instruments and methods for preparing vertebral endplates|
|US20060004371 *||Jul 1, 2004||Jan 5, 2006||Howmedica Osteonics Corp.||Orthopedic reamer|
|US20090143808 *||Dec 3, 2008||Jun 4, 2009||Houser Russell A||Guided Tissue Cutting Device, Method of Use and Kits Therefor|
|US20120191099 *||Jan 23, 2012||Jul 26, 2012||Greatbatch Ltd.||Disposable Surgical Hemispherical Cutter For Concave Surfaces|
|US20120209274 *||Aug 16, 2012||Wright Medical Technology, Inc.||Expandable surgical device|
|USRE42757 *||May 7, 2004||Sep 27, 2011||Spineology, Inc.||Expandable reamer|
|DE2834296A1 *||Aug 4, 1978||Feb 14, 1980||Orthoplant Gmbh||Vorrichtung zum herstellen von hinterdrehten nuten in pfannenfoermigen knochen|
|DE2838348A1 *||Sep 2, 1978||Mar 6, 1980||Neuhaeuser Hans G||Vorrichtung zum ausformen einer knochenoeffnung, insbesondere im hueftbein zum einsetzen einer kuenstlichen gelenkpfanne|
|EP0015433A1 *||Feb 19, 1980||Sep 17, 1980||HOWMEDICA INTERNATIONAL, INC. Zweigniederlassung Kiel||Chucking device for surgical tools|
|EP1063928A1 *||Mar 15, 1999||Jan 3, 2001||The University Of Washington||Percutaneous surgical cavitation device and method|
|EP1471840A1 *||Jan 17, 2003||Nov 3, 2004||Concept Matrix, LLC||Diskectomy instrument and method|
|EP1494600A1 *||Aug 1, 2002||Jan 12, 2005||Precimed S.A.||Minimally invasive surgical reamer and connection|
|EP1987785A2 *||Apr 30, 2008||Nov 5, 2008||Depuy Products, Inc.||Expandable reamer|
|EP2292160A1 *||Apr 30, 2008||Mar 9, 2011||DePuy Products, Inc.||Expandable Reamer|
|WO2004052216A1||Dec 11, 2003||Jun 24, 2004||Depuy Int Ltd||Bone resection device|
|WO2005051207A1||Nov 29, 2004||Jun 9, 2005||Lucia Bonadei||Surgery bur and blades for said bur|
|WO2006015096A1 *||Jul 26, 2005||Feb 9, 2006||Fishbein Meyer||Minimally invasive collapsible surgical reamer|
|WO2006062762A2 *||Nov 28, 2005||Jun 15, 2006||Myers Reese||Collapsible orthopaedic reamer|
|WO2007003243A1 *||May 15, 2006||Jan 11, 2007||Plus Orthopedics Ag||Bone cutter|
|WO2007073606A1||Oct 9, 2006||Jul 5, 2007||Marc-Etienne Favre||Surgical milling cutter and blades for such a cutter|
|U.S. Classification||606/81, 408/159, 408/154, 82/1.2, 408/157|