Meniscus Patents (Class 623/14.12)
  • Patent number: 9314339
    Abstract: A permanent non-resorbable implant allows surgical replacement of cartilage in articulating joints, using a hydrogel material (such as a synthetic polyacrylonitrile polymer) reinforced by a flexible fibrous matrix. Articulating hydrogel surface(s) are chemically treated to provide a negative electrical charge that emulates the negative charge of natural cartilage, and also can be treated with halogenating, cross-linking, or other chemical agents for greater strength. For meniscal-type implants, the reinforcing matrix can extend out from the peripheral rim of the hydrogel, to allow secure anchoring to soft tissue such as a joint capsule. For bone-anchored implants, a porous anchoring layer enables tissue ingrowth, and a non-planer perforated layer can provide a supportive interface between the hard anchoring material and the softer hydrogel material.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: April 19, 2016
    Assignee: Formae, Inc.
    Inventor: Kevin A. Mansmann
  • Patent number: 9295762
    Abstract: The present application discloses that incorporation of dermatan sulfate and/or HA in composite scaffolds of certain polymers gives rise to a chondrogenic effect on chondrocytes resulting in formation of cartilage that resembles the natural ECM. This effect with dermatan sulfate as the primary additive has not previously been seen. The composites are formed by incorporation of dermatan sulfate finely dispersed particles optionally nanoparticles or as molecular dissolutions in a polymer matrix with no bonding between the DS and the matrix, providing the DS to the chondrocytes in an accessible non-crosslinked form.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: March 29, 2016
    Assignee: Coloplast A/S
    Inventors: Hanne Everland, Jacob Vange, Christian Clausen, Lene Feldskov Nielsen
  • Patent number: 9289299
    Abstract: A bone augment for repairing a bone defect and associated method. The bone augment includes a porous body and a reinforcement member. The porous body defines a plurality of pores and is configured to be intraoperatively shaped to correspond to the bone defect. The reinforcement member is mounted on an exterior surface of the porous body and is configured to be intraoperatively shaped to correspond to the bone defect.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 22, 2016
    Assignee: BIOMET MANUFACTURING, LLC
    Inventors: Robert Metzger, Brian M. May, Daniel E. Williamson
  • Patent number: 9283077
    Abstract: An implant system for implantation at a joint, the implant system including an implant device (10), the implant device comprising a body portion (20) having first (15) and second (16) ends, and a first elongate member (40), extending from the first or second end of the body portion, the implant system further comprising a corresponding fixation device (70) for securing the first elongate member to a subject, the fixation device comprising at least one latching element, the first elongate member comprising at least one cooperating element, the at least one cooperating element being capable of cooperating with said at least one latching element of the fixation device in use.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: March 15, 2016
    Assignee: Imperial Innovations, LTD
    Inventors: Andrew Arthur Amis, Justin Peter Cobb, Anthony Michael James Bull, Sarat Babu
  • Patent number: 9277999
    Abstract: Provided herein are compositions and medical devices, and in particular, biodegradable scaffolds capable of repairing and replacing cartilagenous meniscuses. Also provided herein are methods of using scaffolds for treating degenerative tissue disorders. In certain embodiments, such scaffolds can promote tissue regeneration of a temporal mandibular joint (TMJ) meniscus.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: March 8, 2016
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Stephen F. Badylak, Bryan N. Brown, William L. Chung
  • Patent number: 9265611
    Abstract: A partial resurfacing implant for use in repairing an articular cartilage defect site that includes a top articulating portion having a top surface that is configured with at least one radius of curvature to approximate the surface contour of the articular cartilage surrounding the defect site. The implant also includes a supporting plate that has a top surface and a bottom surface. The top surface is attached to the top articulating portion by a locking mechanism. The bottom surface of the supporting plate is constructed to facilitate the insertion of the implant into the defect site. Extending from the bottom surface of the supporting plate is at least one implant fixation portion. The at least one implant fixation portion is integrally connected to and is oriented about normal relative to the bottom surface. A method of repairing an articular cartilage defect with the partial joint resurfacing implant is also disclosed.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: February 23, 2016
    Assignee: BioPoly, LLC
    Inventors: Herbert E. Schwartz, Francis S. Proch, Nathanael K. Conner
  • Patent number: 9216085
    Abstract: A method of repairing an articular cartilage defect with the partial joint resurfacing implant includes surgically creating an opening in the articular cartilage defect site. The method also includes obtaining a partial resurfacing implant which is implanted into the opening. The partial resurfacing implant includes a top articulating portion, an implant fixation portion, and a locking mechanism. The implant fixation portion including an upper segment coupled to the top articulating portion and a bone interfacing segment configured to facilitate insertion into the articular cartilage defect site. The method further includes the bone interfacing segment being inserted into the opening with the top articulating portion and adjacent articular cartilage being positioned to each other to facilitate motion and load transfer over the defect site. Another method of repairing an articular cartilage defect with a partial joint resurfacing implant and a partial joint resurfacing implant are also disclosed.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 22, 2015
    Assignee: BIOPOLY, LLC
    Inventors: Herbert E. Schwartz, Francis S. Proch, Nathanael K. Conner
  • Patent number: 9198763
    Abstract: A spacer for implantation into a subject is provided that includes a sterilized piece of cartilaginous allograft tissue. The piece forms a Y-shape with a base adapted to insert within a first carpo-metacarpal joint or carpo-metatarsal joint of the subject, and has a first area adapted to secure to a trapezium bone adjoining the joint, and a second arm adapted to secure to a proximal metacarpal or metatarsal bone adjoining the joint. A procedure for implanting the spacer includes exposing a target joint and abrading a bone surface interior to the joint to induce surface bleeding. The spacer base is then inserted into the joint. The spacer first arm is adhered to the first bone of the joint and the spacer second arm is adhered to the second bone of the joint. A kit is also provided for surgical implantation of the spacer.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: December 1, 2015
    Inventor: Paul S. Shapiro
  • Patent number: 9132015
    Abstract: Technologies related to tumid implants and pumps are generally described. In some examples, a tumid implant device may comprise an enclosed sack membrane adapted to fit between bones in a joint. Articulation of the joint may cause a first layer of the membrane to move through a first boundary section into a second layer of the membrane, while the second layer moves through a second boundary section into the first layer. A working fluid may be disposed inside the sack membrane, and a reservoir may optionally be coupled to the membrane via a gate. The working fluid may be expelled from the sack membrane into the reservoir, and may re-enter the sack membrane from the reservoir in response to changes in pressure in the joint. The working fluid may be conducted into the reservoir or sack membrane by a pump, and several artery pump designs are disclosed.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: September 15, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Nicholas S. Bromer
  • Patent number: 9050192
    Abstract: A surgical implant for replacing hyaline cartilage in a knee or other articulating synovial joint has an anchoring side on one side of the implant adapted for fixing the implant to one of the bones in the joint, and a bearing surface on the opposite side of the implant for lubricious rubbing and sliding contact with another bone in the joint. The anchoring side can be configured with an irregular surface for tissue ingrowth. The bearing side can include hydrogel. The implant can be rolled up from an original shape and surgically inserted by arthroscopic means, and opens into its original shape when released inside the joint.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: June 9, 2015
    Assignee: Formae, Inc.
    Inventor: Kevin A. Mansmann
  • Publication number: 20150127104
    Abstract: An expandable mold configured to be arthroscopically introduced into a joint for in-situ formation of a joint replacement prosthesis, and a flowable, curable substance configured for forming the joint replacement prosthesis inside said mold. In addition, a surgical kit for arthroscopic, in-situ formation of a joint replacement prosthesis, the surgical kit comprising: an expandable prosthesis mold configured to be arthroscopically introduced into a joint; at least one arthroscopic instrument configured to form an ellipsoidal cavity between two interfacing bones of the joint, for receiving said mold; and a first flowable, curable substance configured for forming the prosthesis inside said mold.
    Type: Application
    Filed: May 2, 2013
    Publication date: May 7, 2015
    Inventors: Ofer Levy, Yael Sonnino-Levy, Mark Shahar, Nir Barkai
  • Patent number: 9017417
    Abstract: This invention includes a subchondral bone repair system, comprising a structural component and a fluid settable component and an optional non-core component. The fluid settable component may penetrate into any pores of the structural component, and set to a solid, thereby fixing the structural component in place. The fluid settable component will penetrate interporously into the pores of the subchondral bone tissue surrounding the device, beneficially displacing any fluid to reduce edema in the affected bone region. Furthermore, the settable component, once solid is osteoconductive to promote repair and regrowth of bone in the affected region, and will also transmit mechanical force stimuli (such as compressive forces) directed through the structural component, into the adjacent bone tissue, thereby providing appropriate force stimuli necessary for appropriate tissue growth.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: April 28, 2015
    Assignee: Kensey Nash BVF Technology LLC
    Inventors: Gino Bradica, Timothy A. Ringeisen
  • Patent number: 8986380
    Abstract: Provided herein is a biocompatible implant for meniscus tissue engineering. Particularly, the biocompatible implant comprises a multi-layered crescent-shaped silk fibroin scaffold, in which each layer comprises distinct pore size and/or pore orientation, e.g., to mimic native meniscus complex architecture. Accordingly, the biocompatible implant can be used for repairing any meniscal defect or promoting meniscal regeneration in a subject.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 24, 2015
    Assignee: Trustees of Tufts College
    Inventors: David L. Kaplan, Biman B. Mandal
  • Patent number: 8979935
    Abstract: Joint space interpositional prosthetic devices for positioning between surfaces of a joint in a patient are disclosed. The prosthetic device may have exterior surfaces affixed to the joint surfaces and may have internal surfaces which provide bearing surfaces. In an exemplary embodiment, the bearing surfaces are encapsulated within the device. The exterior surfaces of the device may include bone securement features to facilitate attachment of the prosthetic device to the joint surfaces.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: March 17, 2015
    Assignee: Zimmer, Inc.
    Inventors: Antony J. Lozier, Russell M. Parrott, David B. Rich
  • Patent number: 8979938
    Abstract: An artificial joint associated with an implant having a pair of three dimensional and structurally extending bones, each defining a contoured and opposing end face and collectively defining a joint location. A plasticized layer is applied to an end face of each bone and coacts in substantially frictional reducing fashion with an opposing end face of a further selected bone. The plasticized layer further includes at least a plurality of projecting contact locations, between which are defined a network of valleys for receiving, supporting, and distributing a lubricant across a surface area associated with the layer.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: March 17, 2015
    Assignee: Linares Medical Devices, LLC
    Inventor: Miguel A. Linares
  • Patent number: 8968403
    Abstract: The present invention is directed to an implant device, in particular an implant device placed between bony, cartilaginous or soft tissues or between prosthetic surfaces to restore or create a gap. More particular the present invention is directed to an implant device made from polymeric material and having a stiffness gradient as well as a limited dimensional deformation, wherein the implant device has a stiffness gradient and a limited dimensional deformation and preferably is at least partially anisotropic.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: March 3, 2015
    Assignee: Dr. H.C. Robert Mathys Stiftung
    Inventors: Reto Luginbühl, Jürgen Vogt, Robert Mathys, Beat Gasser, Yannick Loosli, Jorge Luis Sague Doimeadios
  • Patent number: 8968404
    Abstract: A device for ameliorating joint conditions and diseases comprising a) a first section comprising a joint-ward end, an opposing mating end, and a lateral wall, a peripheral column partially forming the lateral wall of the first section, a central column, and three or more than three struts extending between and connecting the peripheral column and the central column, and each strut thereby supporting the central column, the joint-ward end further comprising a plurality of fenestrations formed by a confluence of the peripheral column, the central column and two adjacent struts of the three or more than three struts, and first section further comprising a central aperture within and formed by the central column, and configured to mate with a driver, b) a second section comprising a mating end, an opposing leading end, and a lateral wall, the lateral wall of the second section comprising threads.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 3, 2015
    Assignee: Subchondral Solutions, Inc.
    Inventor: Derek Dee
  • Patent number: 8956411
    Abstract: The present invention relates to a method of preparing a tissue matrix and its subsequent use in the replacement and/or repair of a damaged or defective meniscus. The invention also provides meniscal tissue that is substantially decellularised.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 17, 2015
    Assignee: University of Leeds
    Inventors: Eileen Ingham, John Fisher, Thomas Stapleton, Joanne Ingram
  • Patent number: 8921109
    Abstract: A cell-support matrix having narrowly defined uniformly vertically and non-randomly organized porosity and pore density and a method for preparation thereof. The matrix suitable for preparation of cellular or acellular implants for growth and de novo formation of an articular hyaline-like cartilage. A gel-matrix composite system comprising collagen-based matrix having a narrowly defined porosity capable of inducing hyaline-like cartilage production from chondrocytes in vivo and in vitro.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: December 30, 2014
    Assignee: Histogenics Corporation
    Inventors: R. Lane Smith, Laurence J. B. Tarrant, Akihiko Kusanagi, Hans Peter Ingemar Claesson
  • Patent number: 8920499
    Abstract: Methods of using implant devices are provided herein. The implant devices of the methods herein have an articular end and a stem, the stem having an oval-shaped cross-section. The articular end has an upper surface, a side surface, and a lower surface. The upper surface and lower surface each intersect the side surface. The upper surface has a first surface curvature, a central surface curvature, and a second surface curvature. The stem extends from the lower surface in a direction away from the upper surface of the articular end.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: December 30, 2014
    Assignee: Fellowship of Orthopaedic Researchers, Inc.
    Inventors: Stephen D. Cook, Peter Strzepa, Shoib Bajaj
  • Patent number: 8920498
    Abstract: Meniscus prosthesis assembly having a meniscus prosthesis body made of a first biocompatible non-resorbable material and having a first end portion and a second end portion; and a first bone plug made of a second biocompatible non-resorbable material for osseous integration, the first bone plug having a first end portion and a second end portion; wherein the first end portion of the first bone plug is arranged at and operatively connected to the first end portion of the meniscus prosthesis body, and wherein the first biocompatible non-resorbable material and the second biocompatible non-resorbable material are the same or different. The assembly further comprises at least one suture, wherein the at least one suture is arranged at and operatively connected to the second end portion of the first bone plug.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: December 30, 2014
    Assignee: Stichting Katholieke Universiteit
    Inventors: P. Buma, T. G. van Tienen
  • Patent number: 8920497
    Abstract: Methods and instruments for repairing a damaged acetabular labrum. The arc length of a portion of an acetabular rim proximal to the damaged (torn or broken) region of the acetabular labrum is measured, and a graft, such as a meniscal allograft or a gracilis autograft, is trimmed according to the measurement and secured in the damaged region of the acetabular labrum as a replacement. Various instruments, such as a wheel mounted on an arm, a measuring member with spaced tines, or a hollow arm with a graduated wire, can be used to measure the arc length of the damaged region of the acetabular labrum.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: December 30, 2014
    Assignee: Arthrex, Inc.
    Inventors: Ricardo Albertorio, Arley Perez, III, Benjamin G. Domb, Robert K. Sluss
  • Publication number: 20140358231
    Abstract: Various methods for treating a joint are disclosed herein. According to one method, a joint is surgically treated by performing a surgical repair treatment on tissue within the joint capsule; implanting a load reducing device at the joint and entirely outside of the joint capsule to reduce load transmitted by the treated tissue to allow for the tissue within the joint capsule to heal; and partially unloading the joint during healing of the surgical repair site.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Applicant: MOXIMED, INC.
    Inventors: Michael E. Landry, Anton G. Clifford, Joshua Makower
  • Publication number: 20140350678
    Abstract: A joint support and subchondral support system and method of use of same for providing structural and dampening support to damaged subchondral bone adjacent to a body joint are disclosed. The joint support and subchondral support system and method of use of same are applicable to many parts of the joint as any area with cartilage disease has an adjoining subchondral component.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 27, 2014
    Applicant: Subchondral Solutions, Inc.
    Inventor: Derek Dee
  • Publication number: 20140350679
    Abstract: An implant for repairing an articular cartilage defect site including an implant fixation portion with an upper segment and at least one bone interfacing segment and a top articulating portion with an articulating surface and an engagement surface. The upper segment includes a supporting plate with a first locking mechanism segment. The engagement surface includes a second locking mechanism segment. The first locking mechanism segment with at least two channels is structured to couple to the second locking mechanism segment with at least two protrusions. The at least one bone interfacing segment structured for insertion into the articular cartilage defect site. An implant including an implant fixation portion, a top articulating portion, and a locking mechanism with a first locking segment coupled to the upper segment and a second locking segment coupled to the at least one engagement surface and structured to couple to the first locking segment.
    Type: Application
    Filed: August 12, 2014
    Publication date: November 27, 2014
    Applicant: BIOPOLY, LLC
    Inventors: Herbert E. SCHWARTZ, Francis S. PROCH, Nathanael K. CONNER
  • Publication number: 20140343675
    Abstract: A shoulder implant device includes one or more fixation features including an acromial intrusion element and an inflatable humeral balloon portion that receives a fluid through the acromial intrusion element. The intrusion element comprises a valve that can receive multiple needle sticks to add or remove fluid to or from the inflatable humeral balloon. The device is implanted in a subacromial space such that the one or more fixation features at least secure the device to the acromion and the inflatable balloon portion rests against the proximal end of the corresponding humerus. Fluid in the balloon portion maintains separation of the acromion and the humerus to reduce or prevent impingement.
    Type: Application
    Filed: March 14, 2014
    Publication date: November 20, 2014
    Applicant: MicroAire Surgical Instruments LLC
    Inventors: Ryan Vanleeuwen, Shannon Vaughn, Thomas Weisel
  • Publication number: 20140336762
    Abstract: A method and system for repairing a defect area in a surface of a joint include providing a mold having a first surface and a second surface, positioning the mold within the joint such that at least part of the mold first surface overlies the defect area, and depositing a repair material under the mold first surface within the defect area to create a repaired site within the joint.
    Type: Application
    Filed: July 24, 2014
    Publication date: November 13, 2014
    Inventor: Barry M. Fell
  • Patent number: 8876902
    Abstract: Methods of utilizing implant devices for the repair of articular cartilage defects are provided herein. The implant devices have circular, or oblong, articular ends. The articular ends have a convex upper face and a concave lower face, the convex upper face blending to the concave lower face, and the concave lower face having a curvature less than the curvature of the convex upper face. The implant devices further have a stem extending from the concave lower face away from the upper face, the stem having a maximum radius at the convex lower face and tapering to lesser radius along the length of the stem.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: November 4, 2014
    Assignee: Moirai Orthopaedics, LLC
    Inventors: Peter Strzepa, Stephen D. Cook
  • Patent number: 8876901
    Abstract: Implant devices having an articular end for repair of articular cartilage defects are provided. The articular end has an oval perimeter, a convex upper face, and a concave lower face. The convex upper face has a first circular pitch radius and a first circular roll radius. At least a portion of the concave lower face has a spherical radius, the convex upper face blending into a rim, wherein at least a first and second portion of the rim extends at least a first distance along a vertical axis and a third and fourth portion of the rim tapers inward along the vertical axis, the rim blending into the concave lower face. The articular cartilage implant devices further include a stem extending from the concave lower face away from the convex upper face along the vertical axis. The stem has a plurality of oval shaped perimeters along the vertical axis.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: November 4, 2014
    Assignee: Moirai Orthopaedics, LLC
    Inventors: Peter Strzepa, Stephen D. Cook
  • Publication number: 20140324169
    Abstract: An implant comprising at least three components, namely, a solid hydrogel, a porous hydrogel adjacent to or surrounding the solid hydrogel (together considered “the hydrogel”), and a porous rigid base. The solid hydrogel and porous rigid base carry joint load, and the porous hydrogel layer and the porous rigid base allow for cellular migration into and around the implant. The invention is also a novel method of manufacturing the implant, a novel method of implanting the implant, and a method of treating, repairing or replacing biological tissue, more preferably musculoskeletal tissue, with the implant.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicant: NEW YORK SOCIETY FOR THE RUPTURED AND CRIPPLED MAINTAINING THE HOSPITAL FOR SPECIAL SURGERY
    Inventors: Suzanne A. Maher, Tony Chen, Joseph D. Lipman, Peter Torzilli, Russell Warren
  • Patent number: 8864827
    Abstract: An implant comprising a first, second, and third segment wherein the second and third segments partially overlap the first segment and define a load bearing surface comprising an anterior-posterior (AP) curvature including at least two tangential curves of the portion of the articular surface of the femoral condyle, the tangential curves having different radii of curvature. A drill guide comprises a body portion including a first, second and third bushing spaced along the body portion to establish a first, second and third axes, respectively. Each axis may be substantially normal to the articular surface at three different points along a curvature of the articular surface comprising the two tangential curves. A measuring device comprises a housing defining a longitudinally passageway and an outrigger. A guide pin may be received in the longitudinal passageway and a measuring device determines how far the guide pin is in the passageway.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 21, 2014
    Assignee: Arthrosurface Inc.
    Inventor: Steven W. Ek
  • Publication number: 20140309739
    Abstract: Provided herein are compositions and medical devices, and in particular, biodegradable scaffolds capable of repairing and replacing cartilagenous meniscuses. Also provided herein are methods of using scaffolds for treating degenerative tissue disorders. In certain embodiments, such scaffolds can promote tissue regeneration of a temporal mandibular joint (TMJ) meniscus.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Inventors: Stephen F. Badylak, Bryan N. Brown, William L. Chung
  • Patent number: 8858632
    Abstract: Implants with hydrogel layers reinforced by three-dimensional fiber arrays can replace hyaline cartilage. Such implants should replace an entire cartilage segment, rather than creating a crevice around a plug, so these implants must be thin and flat, they must cover large areas, the tips of any tufts or stitches must not reach the hydrogel surface, and they must be flexible, for arthroscopic insertion. The use of computerized stitching machines to create such arrays enables a redesigned and modified test sample to be made with no delays, and no overhead or startup costs. This provides researchers with improved tools for making and testing implants that will need to go through extensive in vitro, animal, and human testing before they can be approved for sale and use. Fiber-reinforced hydrogels also can be secured to strong shape-memory rims, for securing anchoring to bones.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: October 14, 2014
    Assignee: Formae, Inc.
    Inventors: Kevin Mansmann, Peter Popper
  • Publication number: 20140296981
    Abstract: A prosthetic device for use as an artificial meniscus is disclosed. The prosthetic device restores shock absorption, stability, and function to the knee joint after removal of the damaged natural meniscus. In some embodiments, the prosthetic device is pre-tensioned to improve the fit of the prosthetic device within the knee joint and, thereby, maximize the contact area of the load-bearing surfaces to distribute loading through the prosthetic device in a manner substantially similar to that of a healthy natural meniscus. In some embodiments, the pre-tensioned prosthetic device is smaller, or scaled-down, relative to the size of a healthy natural meniscus.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Eran Linder-Ganz, Avraham Shterling, Amir Danino
  • Publication number: 20140296980
    Abstract: A method and apparatus for replacing damaged meniscal tissue includes a meniscus implant including a porous body having a plurality of interconnected open micro-pores and one or more open cavities for receiving meniscal tissue. The interconnected micro-pores are arranged to allow fluid to flow into the porous body and are in fluid communication with the one or more open cavities.
    Type: Application
    Filed: June 10, 2014
    Publication date: October 2, 2014
    Inventors: Philippe Gedet, Beat Lechmann, Nicolas Bouduban
  • Patent number: 8840619
    Abstract: A technique for forming a dovetail shaped groove in bone necessary in allograft transplantation such as the meniscus or the Achilles tendon. The technique uses a single drill guide that is designed to create a dovetail shape in bone. The drill guide is provided with a first opening for receiving one drill sleeve placed in a fixed location, and a second opening having an oblong shape for receiving a second drill sleeve having an offset cannulation. The combination of the two drill sleeves allows the surgeon to place two guide pins and ream over each guide pin resulting in a dovetail shape in the bone.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: September 23, 2014
    Assignee: Arthrex, Inc.
    Inventors: Eric S. Zajac, Timothy R. Hoover, Ricardo Albertorio, William C. Carapezza
  • Publication number: 20140277452
    Abstract: An implantable repair device for the repair, augmentation or replacement of tissue, uses silk fibroin and has a smooth surface and a porous surface. The smooth surface has a measured Sa value of less than approximately 0.1 ?m when using Atomic Force Microscopy when samples of the repair device are fully hydrated by imaging through fluid in peak force tapping mode. A method of preparing such an implantable repair device includes preparing a gel from a fibroin solution in a mould, preparing a material by subjecting the gel to one or more steps of freezing and thawing the gel, and creating at least a porous surface on the device, wherein a portion of the mould is adapted to provide at least one smooth surface.
    Type: Application
    Filed: October 18, 2012
    Publication date: September 18, 2014
    Applicant: ORTHOX LIMITED
    Inventor: Nicholas Skaer
  • Publication number: 20140277451
    Abstract: A prosthetic device for use as an artificial meniscus is disclosed. The prosthetic device restores stress distribution, stability, and function to the knee joint after removal of the damaged natural meniscus. In some embodiments, the prosthetic device includes an anti-migration feature that inhibits extreme movement within the joint while permitting free floating over a significant range. In one aspect, the anti-migration feature is an enlarged anterior structure or a posterior meniscus remnant engaging channel while in another aspect, the anti-migration feature includes a tethering member. Still further, removable radiopaque features are provided to enhance trialing of the implant prior to final implantation within the joint.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Eran Ganz, Lex R. Giltaij, Rick Treharne, Thomas B. Buford, Dvora Galli
  • Patent number: 8834568
    Abstract: A spacer for implantation into a subject is provided that includes a sterilized piece of cartilaginous allograft tissue. The piece forms a Y-shape with a base adapted to insert within a first carpo-metacarpal joint or carpo-metatarsal joint of the subject, and has a first arm adapted to secure to a trapezium bone adjoining the joint, and a second arm adapted to secure to a proximal metacarpal or metatarsal bone adjoining the joint. A procedure for implanting the spacer includes exposing a target joint and abrading a bone surface interior to the joint to induce surface bleeding. The spacer base is then inserted into the joint. The spacer first arm is adhered to the first bone of the joint and the spacer second arm is adhered to the second bone of the joint. A kit is also provided for surgical implantation of the spacer.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: September 16, 2014
    Inventor: Paul S. Shapiro
  • Patent number: 8828080
    Abstract: A method and system for repairing a defect area in a surface of a joint include providing a mold having a first surface and a second surface, positioning the mold within the joint such that at least part of the mold first surface overlies the defect area, and depositing a repair material under the mold first surface within the defect area to create a repaired site within the joint.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: September 9, 2014
    Inventor: Barry M. Fell
  • Publication number: 20140249627
    Abstract: Methods of selecting and implanting prosthetic devices for use as a replacement meniscus are disclosed. The selection methods include a pre-implantation selection method and a during-implantation selection method. The pre-implantation selection method includes a direct geometrical matching process, a correlation parameters-based matching process, and a finite element-based matching process. The implant identified by the pre-implantation selection method is then confirmed to be a suitable implant in the during-implantation selection method. In some instances, the during-implantation selection method includes monitoring loads and/or pressures applied to the prosthetic device and/or the adjacent anatomy. In some instances, the loads and/or pressures are monitored by a trial prosthetic device comprising one or more sensors. Methods of implanting meniscus prosthetic devices are also disclosed.
    Type: Application
    Filed: May 12, 2014
    Publication date: September 4, 2014
    Applicant: Active Implants Corporation
    Inventors: Eran Linder-Ganz, Jonathan Elsner, Avraham Shterling
  • Patent number: 8808375
    Abstract: An improved uni-compartmental implant has a shaft having a proximal end attached to a head and a distal end, and one or more raised portions spaced apart along the shaft to resist back-out. The length between the head and distal end is preferably less than 50 mm, the distal end of the shaft has a diameter on the order of 2 to 3 mm, the proximal end of the shaft has a diameter on the order of 2 to 4 mm, and the head has a diameter ranging from 4 mm or less to 20 mm or more, making the device suitable for knee arthroscopy and other applications.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: August 19, 2014
    Assignee: SurgenCo, LLC
    Inventor: Morton Bertram, III
  • Publication number: 20140222149
    Abstract: An implant system for implantation at a joint, the implant system including an implant device (10), the implant device comprising a body portion (20) having first (15) and second (16) ends, and a first elongate member (40), extending from the first or second end of the body portion, the implant system further comprising a corresponding fixation device (70) for securing the first elongate member to a subject, the fixation device comprising at least one latching element, the first elongate member comprising at least one cooperating element, the at least one cooperating element being capable of cooperating with said at least one latching element of the fixation device in use.
    Type: Application
    Filed: June 7, 2012
    Publication date: August 7, 2014
    Applicant: Imperial Innovations, Ltd.
    Inventors: Andrew Arthur Amis, Justin Peter Cobb, Anthony Michael James Bull, Sarat Babu
  • Patent number: 8795284
    Abstract: The invention is directed toward an instrumentation kit used to replace a damaged human knee joint meniscus with an allograft meniscus implant. The kit includes a workstation having a base and upright end sections with a clamping assembly is mounted on the end sections and a movable cutting guide mounted to a side wall of each end section. The tibia is then drilled with a drill to a desired depth and length and a groove is formed in the tibia with an osteotome so that the width is the same as the width of the bone base of the meniscus implant which has been trimmed in the workstation.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: August 5, 2014
    Assignee: Musculoskeletal Transplant Foundation
    Inventors: Helio M. Ribeiro, Joed Canales, Cesar Chavista, Gregory C. Fanelli, John E. Barker
  • Patent number: 8795361
    Abstract: Each of an osteochondral plug graft and a kit comprises a trapezoid shaped construct configured for osteochondral implanting. An osteochondral regeneration method comprises forming a recipient socket in a chondral area of an articular joint in need of repair; harvesting a trapezoid shaped graft from another chondral area; and implanting the trapezoid shaped graft into the recipient socket.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: August 5, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Jeffrey H Nycz, Keith M Kinnane, Susan J Drapeau, Daniel A Shimko, Jeetendra S Bharadwaj
  • Publication number: 20140207234
    Abstract: Flexible cartilage-replacing implants are disclosed that use either or both of (1) enlarged peripheral rim components, and/or (2) elongated flexible reinforcing members that are embedded around the peripheral edge of an implant device. These types of anchoring devices, especially when used in combination, can provide flexible implants that can be implanted arthroscopically into synovial joints, for complete replacement of damaged cartilage segments.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 24, 2014
    Applicant: Formae, Inc.
    Inventor: Kevin A. Mansmann
  • Patent number: 8778024
    Abstract: A prosthetic device for use as an artificial meniscus is disclosed. The prosthetic device restores shock absorption, stability, and function to the knee joint after removal of the damaged natural meniscus. In some embodiments, the prosthetic device is pre-tensioned to improve the fit of the prosthetic device within the knee joint and, thereby, maximize the contact area of the load-bearing surfaces to distribute loading through the prosthetic device in a manner substantially similar to that of a healthy natural meniscus. In some embodiments, the pre-tensioned prosthetic device is smaller, or scaled-down, relative to the size of a healthy natural meniscus.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: July 15, 2014
    Assignee: Active Implants Corporation
    Inventors: Avraham Shterling, Eran Linder-Ganz, Amir Danino
  • Patent number: 8771353
    Abstract: A method and apparatus for replacing damaged meniscal tissue includes a meniscus implant including a porous body having a plurality of interconnected open micro-pores and one or more open cavities for receiving meniscal tissue. The interconnected micro-pores are arranged to allow fluid to flow into the porous body and are in fluid communication with the one or more open cavities.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: July 8, 2014
    Assignee: Depuy Synthes Products, LLC
    Inventors: Philippe Gedet, Beat Lechmann, Nicolas Bouduban
  • Patent number: 8764829
    Abstract: A buffer (10) for placement in a human knee between the femur and tibia comprises an outer sack (14) formed of a pliable material and having a one-way valve (22), a generally circularly shaped inner ring (16) received within the outer sack (14), and a friction reducing fluid (18) received within the outer sack (14) via the one-way valve (22). The inner ring (16) includes top and bottom surfaces (38,40) angled inwardly with respect to each other, such that the ring (16) is generally concave. The buffer (10) is configured for insertion between the femur and tibia so as to at least partially prevent the bones from contacting each other, which reduces the pain and discomfort associated with a loss of articular cartilage (12). The buffer (10) is arthroscopically inserted in the knee using an especially designed sleeve (20) configured for support of the buffer (10) during insertion.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: July 1, 2014
    Inventor: James Marvel
  • Patent number: 8764830
    Abstract: Methods and apparatuses for treatment of various joint conditions include a device inserted into a joint space. During delivery, the profile of the device is constrained in at least one dimension to minimize invasive impact on tissue and/or bone. The device may be restrained for implantation by a thread or a rigid elongate member. After insertion, the device may expand at the implantation site.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: July 1, 2014
    Assignee: Articulinx, Inc.
    Inventors: Janine C. Robinson, Michael Hogendijk