Total Joint Bone (i.e., Including Two Connected Joint Bones) Patents (Class 623/23.39)
  • Patent number: 9974579
    Abstract: An intramedullary distraction device is provided. The device includes a first taper stem, a second taper stem, a first coupler and a second coupler. The first coupler includes a top end and a bottom end. The first taper stem is secured to the top end of the first coupler. The bottom end of the first coupler forms an inner sidewall. The second coupler includes a bottom end and a top end. The second taper stem is secured to the bottom end of the second coupler. The top end of the second coupler includes an inner sidewall that mates with the inner sidewall of the first coupler. A connector releasably connects the first coupler to the second coupler.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: May 22, 2018
    Inventor: Robert Peter Casola
  • Patent number: 9962261
    Abstract: A two-piece socket for a ball-and-socket arrangement, including a base and a cap. The socket includes a leg on one of the cap or base of the socket and a receiving groove on the other of the cap or base of the socket, wherein there is at least one opening in the leg which lines up with a corresponding opening in the groove for a fastener to extend through these openings to releasably secure the cap to the base of the socket. The orientation of the fastener is such that the fastener is under shear loading when the cap is pulled apart from the base.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: May 8, 2018
    Assignee: Aptis Medical, LLC
    Inventor: Luis Roman Scheker
  • Patent number: 9883946
    Abstract: A composite article (e.g., prosthesis) and method of preparing the article is provided. An article may include a body having a matrix of a first hardness having a plurality of particles of a second hardness embedded in the matrix in fixed locations, the second hardness being harder than the first hardness, and the matrix having an external wear surface with a portion of the particles being proximal to or exposed at the external wear surface. The matrix with the particles may improve the life and durability of the article.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: February 6, 2018
    Assignee: Sparkle Medical LLC
    Inventors: John Michael Pinneo, Roy McDonald, Charles K. Lim
  • Patent number: 9764061
    Abstract: A coating of blue-black or black zirconium of uniform and controlled thickness on a zirconium or zirconium alloy material is accomplished through the treatment of an amorphous zirconium or zirconium alloy substrate, which may have an altered surface roughness. The treatment of amorphous zirconium or zirconium alloy substrates includes oxidation of the substrates. A zirconium coating of uniform and controlled thickness is especially useful in various applications because the uniformly thick zirconium surface of controlled depth provide a barrier against implant corrosion caused by ionization of the metal substrates.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: September 19, 2017
    Assignee: Smith & Nephew, Inc.
    Inventors: Gordon Hunter, Shilesh Jani, Vivek Pawar
  • Patent number: 9173691
    Abstract: A system, devices and methods for performing an osteotomy on a bone of a multi-axis joint are provided. A cutting guide system is provided for performing one or more cuts to the bone, using the articular surfaces of the articulating bones as a reference. If desired, a prosthesis can be used to emulate the osteotomy and substitute for a damaged articular surface of a bone of a multiaxis joint.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 3, 2015
    Assignee: Skeletal Dynamics LLC
    Inventors: Jorge L. Orbay, Thomas H. Norman, Ronald Litke
  • Patent number: 9044323
    Abstract: The present invention provides a bearing material that is excellent in durability and is capable of maintaining wear resistance over a long period of time. The bearing material of the present invention is a high wear-resistance bearing material 10 for being used under a humid environment comprising: a base body 12 made of a polymer material having a methylene group; and a polymer layer 30 covering a bearing surface 16 of the substrate 12, the polymer layer 30 comprising polymer chains which have a phosphorylcholine group and are grafted from the bearing surface 16, wherein a phosphoric index of the sliding surface 16 which is calculated by dividing a peak intensity of phosphate group in an infrared spectrum measured on the sliding surface by a peak intensity of the methylene group therein is not less than 0.28.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: June 2, 2015
    Assignee: KYOCERA MEDICAL CORPORATION
    Inventors: Masayuki Kyomoto, Toru Moro, Kazuhiko Ishihara, Tomohiro Konno, Kozo Nakamura, Yoshio Takatori, Hiroshi Kawaguchi, Hiroaki Takadama, Makoto Kondo, Noboru Yamawaki, Takeshi Nizuka, Masami Hashimoto
  • Publication number: 20150148910
    Abstract: A prosthetic joint (100) comprises a first component (110) having a first interface portion (111). The prosthetic joint (100) further comprises a second component (120) having a second interface portion (121) with a textured surface (122) to interface with the first interface portion (111) and form a skeletal joint. The textured surface (122) can include a plurality of concave features (123). Each or the concave features (123) can be configured to compress a lubricant (140) to facilitate hydrodynamic lubrication between the first and second interface portions (111, 121) to minimize wear between the first interface portion (111) and the second interface portion (121) of the prosthetic joint (100).
    Type: Application
    Filed: July 2, 2013
    Publication date: May 28, 2015
    Inventors: Bart Raeymaekers, Anthony Sanders
  • Publication number: 20150094822
    Abstract: A modular articulated spacer system provides for screw-based assembly of an articular spacer intended to replace an artificial joint temporarily, whereby the articulated spacer system comprises at least two modules connectable by means of a screw connection, whereby a first module of the articular spacer system comprises a surface for formation of a sliding surface of the joint of the articular spacer and a second module of the articular spacer system comprises a stem for connection to a bone. The modules are connectable by means of the screw connection comprising at last one screw-locking device for each screw connection, whereby the screw-locking device is connected to one of the modules or is provided in the form of the same part as one of the modules.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventor: Sebastian Vogt
  • Patent number: 8979937
    Abstract: A multi-component ankle joint assembly incorporated into reconditioned end surfaces established between an upper tibia bone and an opposing and lower talus bone. A first component is anchored into the upper tibia reconditioned end surface and exhibits a first exposed support surface. A second component is anchored into the lower talus reconditioned end surface of and exhibits a second exposed support surface. A spherical shaped intermediate component is supported in at least one of eccentric or rotational fashion between the first and second anchored components. The spherical shaped component includes a multi-layer composition having a softer outer layer and at least one harder interior layer establishing an eccentric rotational interface therebetween.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 17, 2015
    Assignee: Linares Medical Devices, LLC
    Inventors: Miguel A. Linares, Miguel A. Linares, Jr.
  • Publication number: 20150066152
    Abstract: The present disclosure provides, among other things, prosthetic joint components having textured surface(s) for improving lubrication and increasing the useful life of the prosthetic joint components. The textured surface includes solid features configured to stably contain a biological fluid or a synthetic biological fluid therebetween or therewithin for a non-zero residence time.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 5, 2015
    Applicant: Massachusetts Institute of Technology
    Inventors: Alexander H. Slocum, JR., Adam T. Paxson, Jonathan David Smith, Daniel H. Goodman, Kripa K. Varanasi
  • Publication number: 20150005887
    Abstract: A joint prosthesis including a first component having a cleaned silicon carbide layer, and an annealed graphs layer disposed on the cleaned silicon carbide layer, the annealed graphene layer being a contact layer interfacing a second component of the joint prosthesis, wherein at least one of the first component and the second component is moveable with respect to the other component
    Type: Application
    Filed: June 30, 2013
    Publication date: January 1, 2015
    Inventors: CHRISTOS D. DIMITRAKOPOULOS, JAMES J. WYNNE
  • Patent number: 8900322
    Abstract: An antibiotic delivery system including an intramedullary stem that is adapted to be removably mounted into a medullary canal of a bone. The stem includes a body having an inlet adapted to be in fluid communication with a source of liquid-borne antibiotic and a plurality of outlets disposed along the stem. A channel extends between the inlet and the plurality of outlets for delivering a fluid-borne antibiotic from the inlet to the plurality of outlets so as to distribute the antibiotic along the medullary canal in a controlled fashion. A method of treating an infected joint during a two-stage re-implantation of an orthopedic implant is also disclosed.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: December 2, 2014
    Inventor: Brian C. de Beaubien
  • Patent number: 8900323
    Abstract: An antibiotic delivery system including an intramedullary stem that is adapted to be removably mounted into a medullary canal of a bone. The stem includes a body having an inlet adapted to be in fluid communication with a source of liquid-borne antibiotic and a plurality of outlets disposed along the stem. A channel extends between the inlet and the plurality of outlets for delivering a fluid-borne antibiotic from the inlet to the plurality of outlets so as to distribute the antibiotic along the medullary canal in a controlled fashion.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: December 2, 2014
    Inventor: Brian C. de Beaubien
  • Publication number: 20140324185
    Abstract: A joint prosthesis for mounting in a first bone and presenting a prosthetic joint surface for engaging an opposing joint surface of a second bone, the joint prosthesis comprising: a sleeve which is adapted for partial disposition in an opening formed in the first bone; a center adapter which is adapted for disposition within the sleeve; and a prosthetic joint surface mounted to the center adapter; wherein the disposition of the center adapter is adjustable, both longitudinally and rotationally, relative to the sleeve, so that the disposition of the prosthetic joint surface is adjustable, both longitudinally and rotationally, relative to the opposing joint surface of the second bone.
    Type: Application
    Filed: January 7, 2014
    Publication date: October 30, 2014
    Applicant: Simplicity Orthopedics, Inc.
    Inventors: Barry T. Bickley, Richard E. Zovich, Aldo M. Zovich
  • Publication number: 20140309747
    Abstract: An implant that facilitates the fusion of a first bone part with a second bone part includes an implant body that extends between the first bone part and the second bone part. The implant body includes a first portion that fits within a first receiving aperture in the first bone part, and the implant body includes a second portion that fits within a second receiving aperture in the second bone part. At least one of the first portion and the second portion can be made of bone. Additionally, at least the second portion is formed to have a non-circular cross-sectional shape to inhibit relative motion between the bone parts and the implant body.
    Type: Application
    Filed: December 17, 2013
    Publication date: October 16, 2014
    Applicant: Solana Surgical, LLC
    Inventors: Alan G. Taylor, Rebecca Hawkins Wahl, Bruce R. Lawrence
  • Publication number: 20140277566
    Abstract: A locking implant is provided for a long bone. The locking implant comprises a head portion, a stem portion extending from the head portion, and an anchor disposed at an end of the stem portion for engagement within a resected long bone. The anchor defines at least one locking feature, such as a cam, configured to engage an interior of the resected long bone upon rotation of the implant, thereby locking the head portion to the long bone. The implant may comprise a two component modular design. Methods of locking the implant to a long bone structure are also provided.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Inventors: John M. McDaniel, Nathan A. Winslow
  • Publication number: 20140121779
    Abstract: A bone joint repair and replacement assembly. A first portion comprising a bone plate is configured to attach to a distal or proximal end of a bone proximate the joint, generally coaxially with an axis defined by the bone. A second portion comprising an articular surface is configured to attach to the first portion, generally normal with respect to the axis, and inserted into the joint. Although versions of the assembly can be configured for use with several different pivotal joints, the invention is particularly suitable for full or partial replacement of an elbow, wherein the articular surface is pivotally attached to the first portion. Another embodiment of the invention is provided to repair a fractured bone head proximate the joint, and still another embodiment of the invention is provided to repair rotator cuff-related shoulder injuries.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 1, 2014
    Inventor: Eduardo Gonzalez-Hernandez
  • Patent number: 8702802
    Abstract: A joint assembly incorporated into a reconditioned end surface established between upper and opposing lower bones. At least one first component is anchored into a first of the reconditioned bone end surfaces and exhibits a rotatably supported wheel. A second component is anchored into a second opposing reconditioned bone end surfaces and exhibits a second exposed support surface in contact with the rotatably supported wheel. The first component includes a supporting well anchored into the reconditioned bone end surface for supporting the wheel in rotatable fashion. A laterally inserting pin displaces relative to a side of the wheel well and into an interior thereof and includes a central axial through hole which receives the pin for supporting the shaft.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: April 22, 2014
    Assignee: Linares Medical Devices, LLC
    Inventors: Miguel A. Linares, Miguel A. Linares, Jr.
  • Publication number: 20140025172
    Abstract: Total joint replacements for implants include a first member configured to attach to a first bone, a second member configured to reside in an adjacent second bone and a locking mechanism. The locking mechanism is configured to (i) lock the first and second members in alignment for full extension or other defined stabilized configuration and (ii) unlock to allow the first and second members to pivot relative to each other for flexion or bending.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 23, 2014
    Inventors: Eric Montgomery Lucas, John David DesJardins, Kim John Chillag, Frank Richard Voss
  • Publication number: 20140018930
    Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.
    Type: Application
    Filed: December 27, 2011
    Publication date: January 16, 2014
    Applicant: Swemac Innovation AB
    Inventor: Lars Oster
  • Publication number: 20130197659
    Abstract: A joint prosthesis comprises a first component having a bearing surface and a second component having a bearing surface arranged to articulate with the bearing surface of the first component, said bearing surfaces of the first and the second component thus forming a bearing couple. The bearing surfaces consist of a silicon carbide whisker reinforced alumina. Thus, a bearing couple with low wear, low friction and high hardness is provided.
    Type: Application
    Filed: April 21, 2011
    Publication date: August 1, 2013
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Gunnar Brandt, Erik Osthols, Daniel Stromberg, Shen Zhijian
  • Patent number: 8454706
    Abstract: An antibiotic delivery system including an intramedullary stem that is adapted to be removably mounted into a medullary canal of a bone. The stem includes a body having an inlet adapted to be in fluid communication with a source of liquid-borne antibiotic and a plurality of outlets disposed along the stem. A channel extends between the inlet and the plurality of outlets for delivering a fluid-borne antibiotic from the inlet to the plurality of outlets so as to distribute the antibiotic along the medullary canal in a controlled fashion. A method of treating an infected joint during a two-stage re-implantation of an orthopedic implant is also disclosed.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: June 4, 2013
    Inventor: Brian C. de Beaubien
  • Publication number: 20130085577
    Abstract: The invention relates to a prosthesis for at least partial replacement of a tubular bone and of an adjacent joint, comprising an elongate shaft (1) with a first end and a second end, and a joint mechanism (2) arranged at the second end of the shaft (1), wherein a length-adjusting mechanism (3) is provided which actuates the shaft (1) along the axis (10) thereof in the manner of a telescope. The shaft (1) and the joint mechanism (2) are coupled via a plug connection with matching cone connectors (18, 29), wherein the length- adjusting mechanism (3) is of a modular design and, at the proximal and distal ends thereof, is provided with the matching cone plug connectors (18, 19), and it is further provided with an anti-rotation means (35, 37) that acts with a form fit.
    Type: Application
    Filed: June 10, 2011
    Publication date: April 4, 2013
    Applicant: WALDEMAR LINK GMBH & CO. KG
    Inventors: Helmut D. Link, Andreas Dänike, Günther Jendro
  • Publication number: 20130053978
    Abstract: A joint assembly incorporated into a reconditioned end surface established between upper and opposing lower bones. At least one first component is anchored into a first of the reconditioned bone end surfaces and exhibits a rotatably supported wheel. A second component is anchored into a second opposing reconditioned bone end surfaces and exhibits a second exposed support surface in contact with the rotatably supported wheel. The first component includes a supporting well anchored into the reconditioned bone end surface for supporting the wheel in rotatable fashion. A laterally inserting pin displaces relative to a side of the wheel well and into an interior thereof and includes a central axial through hole which receives the pin for supporting the shaft.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 28, 2013
    Inventors: Miguel A. Linares, Miguel A. Linares, JR.
  • Patent number: 8308812
    Abstract: A prosthetic joint member includes: a generally concave cup with an outer surface that is bone-implantable, the cup including a first indexing feature; a concave insert disposed inside the cup, the insert comprising a rigid material and including a concave interior defining a nominal surface, the interior including a cantilevered flange defined by an undercut in the insert, the flange defining a wear-resistant first contact surface which protrudes inward relative to the nominal surface, the insert including a second indexing feature. The first and second indexing features engage each other so as to retain the insert in a fixed angular orientation relative to the cup.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: November 13, 2012
    Assignee: BioMedFlex, LLC
    Inventors: Franz W. Kellar, Harold Lloyd Crowder, Jr., Scott M. Duquette
  • Publication number: 20120010724
    Abstract: An orthopedic prosthetic implant comprises a metal alloy stem element (13, 63, 113), which has one end portion (19, 69, 119) constructed to reside in the medullary cavity of a bone and an integral connector (23, 73, 123) at the opposite end to which crystalline brittle head (17, 67, 117), preferably made of pyrocarbon-coated graphite, is joined. The head interfaces with human bone, and its effective joinder to the stem element is achieved through a polymeric insert (15, 65, 115) of proportional shape and design which has selected elastic properties. The design and material of the polymeric insert allow it to be securely received within an interior cavity (35, 77, 131) of the pyrocarbon-coated graphite head and mated to the stem connector in an either rigidly or bi-polar arrangement. The method of joinder allows the construction of composite implants that utilize the most desirable properties of metallic and brittle crystalline materials.
    Type: Application
    Filed: September 21, 2011
    Publication date: January 12, 2012
    Applicant: ASCENSION ORTHOPEDICS, INC.
    Inventors: Steve VANDER MEULEN, Jerome J. KLAWITTER
  • Patent number: 8083802
    Abstract: A joint prosthesis has a first component for cooperation with a first long bone, a second component for cooperation with a second long bone, and a bearing component positionable between the first component and the second component. The bearing component includes a reinforcing component and a polymeric material completely encapsulating the reinforcing component and molded thereto. The bearing component may be sterilized by a predominately surface sterilizing technology.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: December 27, 2011
    Assignee: Deput Products, Inc.
    Inventors: Rama Rao V. Gundlapalli, Mark Heldreth, Todd Smith, Albert Burstein
  • Publication number: 20110307071
    Abstract: A prosthesis assembly in one embodiment includes a stem configured to be implanted in a bone and including a first coupling portion, a head having a bearing surface configured to mate with at least one of a natural opposing joint component and a prosthetic opposing joint component, the head further having a second coupling portion, a coupler including a third coupling portion and a fourth coupling portion, the third coupling portion configured to couple with the second coupling portion, and an insert including (i) a fifth coupling portion configured to couple with the fourth coupling portion in any of a plurality of rotational orientations in combination with any of a plurality of roll angles and any of a plurality of pitch angles, and (ii) a sixth coupling portion configured to couple with the first coupling portion only when the insert assumes a predetermined rotational orientation with respect to the stem.
    Type: Application
    Filed: August 22, 2011
    Publication date: December 15, 2011
    Applicant: DePuy Products, Inc.
    Inventor: Conrad L. Klotz
  • Patent number: 8062376
    Abstract: An implant assembly and associated method for selectively performing reverse and traditional arthroplasty for a shoulder joint that includes a humerus and a glenoid. The implant assembly may include a head, a cup, a humeral stem and an adaptor. The method includes inserting the humeral stem to the humerus and connecting a male taper of the adaptor to a female taper of the head. For reverse arthroplasty, the method includes attaching the adaptor to the glenoid and the cup to the stem. For traditional arthroplasty, the method includes attaching the adaptor to the humeral stem and the cup to the glenoid. The method also includes articulating the head with the cup.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: November 22, 2011
    Assignee: Biomet Manufacturing Corp.
    Inventors: Jason M. Shultz, Nathan A. Winslow, Dean E. Smeltzer, Kevin T. Stone
  • Patent number: 8029574
    Abstract: A prosthetic knee joint includes: (a) a femoral member comprising rigid material with a convex, wear-resistant femoral contact surface including a convex ridge; (b) a tibial assembly including: (i) at least one cup comprising rigid material with a body and a rim substantially thicker than the body defining a wear-resistant cup contact surface; (ii) a rigid base; and (iii) a spring support interconnecting the cup and the base, the spring support elastically deflectable permitting controlled pivoting of the at least one cup; (c) wherein the cup contact surface bears against the femoral contact surface, transferring axial and lateral loads between the cup and femoral member, while allowing pivoting between the cup and femoral member; and (d) wherein the at least one cup allows the rim to deform elastically, permitting the cup contact surface to conform in an irregular shape to the femoral contact surface, when the knee joint is loaded.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: October 4, 2011
    Assignee: BioMedFlex LLC
    Inventors: Franz W. Kellar, Harold Lloyd Crowder, Glenn A. Rupp
  • Publication number: 20110224673
    Abstract: Disclosed herein is a minimally invasive ball joint implant and prosthesis for the treatment of arthritis, trauma, and other medical conditions leading to joint destruction and pain, as well as methods of use. In various cases, the prosthesis does not require reaming into the intramedullary canal and does not require diaphyseal fit for any bones associated with the joint, thereby resulting in more rapid and complete recovery. In various cases, the prosthesis incorporates an anchoring stem specifically designed to be impacted into the bone and to facilitate bony ingrowth after implantation, thereby strengthening the implanted prosthesis and preventing rotation thereof.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 15, 2011
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventor: Matthew J. Smith
  • Patent number: 7972380
    Abstract: An artificial joint associated with an implant including a pair of three dimensional and structurally extending bones, each defining a contoured and opposing end face, and which collectively defines a joint location. At least one plasticized layer is applied to one of, or both, the end faces in a coacting and substantially frictional reducing fashion. A lubricating plastic is defined upon an exposed face of the bladder. The plasticized layers may include a fluid receiving and inflatable bladder for filling a three dimensional area associated with the joint location. A curable/settable fluidic material can be injected into the bladder and which includes at least one of an epoxy, a urethane, a gelatin and a two-part hardener. The bones each further include an artificial implant constructed from at least one of a plasticized and a metallic material.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: July 5, 2011
    Assignee: Linares Medical Devices, LLC
    Inventor: Miguel A. Linares
  • Publication number: 20110125275
    Abstract: A prosthetic joint according to the present invention includes a first implant component for attachment to a first bone and a second implant component for attachment to a second bone. The first implant component has a condylar portion that includes first and second condylar bearing surfaces and similarly, the second implant component has bearing surfaces that receive and are complementary to the first and second condylar bearing surfaces. Each of the first and second condylar bearing surfaces and each of the bearing surfaces of the second implant component has a cross-section in a coronal plane that exhibits two different radii and a contact point is established between the first and second condylar bearing surfaces and the bearing surfaces of the second implant component. The bearing surfaces of the respective implant components are configured such that varus and valgus rotation of the first implant component relative to the second implant component causes the contact point to move outwardly.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 26, 2011
    Applicant: NEW YORK SOCIETY FOR THE RUPTURED AND CRIPPLED MAINTAINING THE HOSPITAL FOR SPECIAL SURGERY
    Inventors: Joseph D. Lipman, Donald L. Bartel, Timothy M. Wright
  • Patent number: 7947081
    Abstract: A skeletal implant for replacing a human bone includes an inner reinforcing member and an outer plasticized and fluid resistant layer encasing the inner reinforcing member. A structurally rigid and foamable layer is disposed between the inner reinforcing member and the outer plasticized layer. An end of the outer layer is configured for receiving, in articulated engagement, an end of an adjoining bone. A plurality of ligaments are grafted between the implant and the adjoining bone and proximate the articulated engagement. Conduit passageways are also established between the inner reinforcing member and the end of the outer layer in order to communicate a fluid to an articulating engagement and ligament supporting location with an adjoining bone.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: May 24, 2011
    Assignee: Linares Medical Devices, LLC
    Inventor: Miguel A. Linares
  • Publication number: 20110035022
    Abstract: An artificial joint implant in use with a bone and including a three dimensional shaped body have an exterior configured and joint defining face. An annular shaped recess is formed within a seating location of the implant for securing the body over a sectioned end of the bone. A stem extends from the body inwardly within the bone and exhibits at least one support for engaging an inner bone surface and in order to maintain the implant in secured fashion to the bone.
    Type: Application
    Filed: May 1, 2009
    Publication date: February 10, 2011
    Applicant: LINARES MEDICAL DEVICES, LLC
    Inventor: Miguel A. Linares
  • Patent number: 7883545
    Abstract: A method is provided for determining a dimensional change in a first object, wherein in an initial state said first object is connected to a second object via a joint, and wherein a first reference system is rigidly connected to the second object.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: February 8, 2011
    Assignee: BrainLAB AG
    Inventor: Gregor Tuma
  • Publication number: 20100331995
    Abstract: The invention relates to a process for producing an (ultra) high molecular weight polyethylene (HMWPE) article comprising:—incorporating into the HMWPE resin a Hindered Amine Light Stabilizer (HALS) and—cross-link the (U)HMWPE during or after molding the (U)HMWPE resin.
    Type: Application
    Filed: November 6, 2008
    Publication date: December 30, 2010
    Inventors: Harold Jan Smelt, Pieter Gijsman, Martin van Duin
  • Patent number: 7776097
    Abstract: The invention solves the problem of anchoring a prosthetic component into compliant, cancellous bone by a thin, preferably pure titanium, or a titanium-based alloy, perforated, hence hydraulically open, shell (1, 13), spaced apart from the second, non-perforated shell (2, 14). In most applications, dictated by the anatomical site of insertion, shells are approximately hemispherical in form, connected to each other at the equator. The solid shell may contain a further, articulating component of the joint, e.g. a polymer or a ceramic insert, or it may serve that function itself. One or both components of a joint prosthesis can be anchored according to the invention.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: August 17, 2010
    Assignee: Scyon Orthopaedics AG
    Inventors: Slobodan Tepic, Henrik Malchau
  • Publication number: 20090326673
    Abstract: An assembly comprises first and second parts which bear against one another, wherein said first part comprises a polyetherketoneketone and said second part comprises a polyetherketoneketone. The parts bear against one another such that one or both of the parts may have a tendency to wear and/or produce wear debris by virtue of contact between the parts. The materials used, however, minimise wear and the production of such wear debris.
    Type: Application
    Filed: October 11, 2007
    Publication date: December 31, 2009
    Applicant: INVIBIO LIMITED
    Inventors: John Neil Devine, Irene Sinz
  • Patent number: 7625406
    Abstract: A prosthetic joint kit, particularly well suited for an elbow, transmits load through the prosthetic joint through a pair of spherically shaped bearing surfaces so as to transmit load over a relatively large area rather than at a point or over a line of contact. The prosthetic joint kit may be configured in a modular manner wherein a plurality of interchangeable stem structures, bearing structures and/or bearing inserts of various types are available. Construction in this manner enables a surgeon to configure the prosthetic joint to best suit the needs of the patient. For example, the surgeon may employ a modular flange for compressing a bone graft, a tissue fastener for securing soft tissue to a portion of the prosthetic joint, a cam for limiting the amount by which the prosthetic joint articulates or a bearing insert for tailoring the degree of varus/valgus constraint.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: December 1, 2009
    Assignee: Biomet Manufacturing Corp.
    Inventors: Brian K. Berelsman, Kevin T. Stone, Thomas J. Graham, Hill Hastins
  • Patent number: 7611540
    Abstract: A system and method for sharing and absorbing energy between body parts. In one aspect, the method involves identifying link pivot locations, fixing base components and minimally invasive insertion techniques. In one particular aspect, the system facilitates absorbing energy between members forming a joint such as between articulating bones.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: November 3, 2009
    Assignee: Moximed, Inc.
    Inventors: Anton G. Clifford, Mary O'Connell, Joshua Makower, Richard G. Vecchiotti
  • Patent number: 7473278
    Abstract: A coating of blue-black or black oxidized zirconium of uniform and controlled thickness on a zirconium or zirconium alloy material is accomplished through the oxidative treatment of an amorphous zirconium or zirconium alloy substrate having an altered surface roughness. An oxidized zirconium coating of uniform and controlled thickness is especially useful on orthopedic implants of zirconium or zirconium-based alloys to provide low friction, highly wear resistant surfaces on artificial joints, such as, but not limited to, hip joints, knee joints, shoulders, elbows, and spinal implants. The uniformly thick oxidized zirconium surface of controlled depth on prostheses provide a barrier against implant corrosion caused by ionization of the metal prostheses. The invention is also useful in non-articulating implant devices such as bone plates, bone screws, etc.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: January 6, 2009
    Assignee: Smith & Nephew, Inc.
    Inventors: Gordon Hunter, Shilesh C. Jani, Vivek Pawar
  • Publication number: 20070282451
    Abstract: A prosthesis for replacing a selected portion of the anatomy is disclosed. Also disclosed is an exemplary method and apparatus for performing a procedure. The procedure can be minimally or less invasive.
    Type: Application
    Filed: May 31, 2006
    Publication date: December 6, 2007
    Applicant: Biomet Manufacturing Corp.
    Inventors: Robert Metzger, Duke A. Fox
  • Publication number: 20070137734
    Abstract: The present invention relates to a new composition and medical implant made therefrom, the composition comprising a thick diffusion hardened zone, and preferably further comprising a ceramic layer. The present invention relates to orthopedic implants comprising the new composition, methods of making the new composition, and methods of making orthopedic implants comprising the new composition.
    Type: Application
    Filed: November 10, 2006
    Publication date: June 21, 2007
    Applicant: Smith & Nephew Inc.
    Inventors: Vivek Pawar, Shilesh C. Jani, Carolyn Weaver
  • Patent number: 7160331
    Abstract: A sigmoid notch resurfacing prosthesis for application to the sigmoid notch of the distal radius. The sigmoid notch prosthesis generally includes a saddle and a radius portion for attachment to the distal radius. The saddle may be formed from ultra high molecular weight polyethylene or another durable self-lubricating material. The saddle includes an at least partially concave contoured depression having rounded edges that is securable to the radius portion. The saddle may be secured by a sliding notch snap fit design. The prosthesis may be adapted for articulation with the natural head of the ulna or with an ulnar head prosthesis that has replaced the ulnar head.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: January 9, 2007
    Assignee: Mayo Foundation for Medical Research and Education
    Inventors: William P. Cooney, III, Richard A. Berger, David A. Leibel
  • Patent number: 7108719
    Abstract: In a joint prosthesis with a base piece for anchoring in the bone, a collar piece articulated thereon and defining a collar axis, and a collar extension on the collar piece situated on the collar axis, an articulation space is formed on the base piece. An articulation head of the collar piece is disposed therein. The joint prosthesis further includes a head cap disposed on the collar extension and at least one pressure piece for pressing the articulation head against the base of the articulation space. The pressure piece and the base piece can be connected. In a joint prosthesis of this kind, the pressure piece includes a pressure disc with a passage opening for the collar extension.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: September 19, 2006
    Inventor: Willi Horber
  • Publication number: 20040260302
    Abstract: An internal brace for distraction arthroplasty includes femoral and tibial components which can be fixed to a patient's femur and tibia and which in combination distract or separate the knee joint without substantially hindering mobility of the knee.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 23, 2004
    Inventor: Sheldon Manspeizer
  • Publication number: 20040243249
    Abstract: An artificial joint member made of a polymeric material including a portion made of a polymeric substance has a sliding surface composed of a polymer having phosphoryl choline groups. With such an arrangement, the artificial joint member is provided with a sliding part capable of keeping a satisfactory lubricating state for a long time.
    Type: Application
    Filed: March 10, 2004
    Publication date: December 2, 2004
    Inventors: Kazuhiko Ishihara, Toru Moro, Kozo Nakamura, Yoshio Takatori, Hiroshi Kawaguchi, Tomohiro Konno, Tomiharu Matsushita, Shuji Kusumoto
  • Patent number: 6818020
    Abstract: A medical implant made of polymeric material having an increased oxidation resistance is formed by a method including the steps of placing a resin powder in a sealed container. A substantial portion of the oxygen is removed from the sealed contained by either a vacuum, an oxygen absorbent or by flushing with inert gas. The container is then repressurized with a gas such as nitrogen, argon, helium or neon so that long term storage may be possible. On use, the resin in transferred to a forming device which both melts and forms the resin in an oxygen reduced atmosphere to produce a polymeric raw material such as a rod or bar stock. The medical implant is then formed from this raw material annealed and sealed in an airtight package in an oxygen reduced atmosphere. The implant is then radiation sterilized and thereafter annealed in the package for a predetermined time and temperature sufficient to form cross-links between any free radicals in neighboring polymeric chains.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: November 16, 2004
    Assignee: Howmedica Osteonics Corp.
    Inventors: Deh-Chuan Sun, Casper F. Stark
  • Publication number: 20040220675
    Abstract: A total elbow replacement prosthesis for dogs is provided. A humeral component has an elongated stem carried by the humerus and a generally cylindrical head carried by the stem. The cylindrical head has a spiral groove formed at an angle substantially the same as the angle of the trochlear notch in a healthy ulna. A radial ulnar component is provided having a body and a formed plastic seat against which the head of the humeral component sits and articulates. The plastic seat includes a vertical ridge which engages the spiral groove to provide lateral support for the prosthesis and to mimic the natural motion of a healthy elbow. The radial ulnar component is anchored to the ulnar. A radial cap is carried by the proximal end of the radius and has a domed surface adapted to engage a recess in the body of the radial ulna component.
    Type: Application
    Filed: April 26, 2004
    Publication date: November 4, 2004
    Inventors: Ralph Harrison Lewis, Toni Lewis