Entries |
Document | Title | Date |
20080234820 | METHOD AND SYSTEM FOR MAMMALIAN JOINT RESURFACING - A method and system for the creation or modification of the wear surface of orthopedic joints, involving the preparation and use of one or more partially or fully preformed and procured components, adapted for insertion and placement into the body and at the joint site. In a preferred embodiment, component(s) can be partially cured and generally formed ex vivo and further and further formed in vivo at the joint site to enhance conformance and improve long term performance. In another embodiment, a preformed balloon or composite material can be inserted into the joint site and filled with a flowable biomaterial in situ to conform to the joint site. In yet another embodiment, the preformed component(s) can be fully cured and formed ex vivo and optionally further fitted and secured at the joint site. Preformed components can be sufficiently pliant to permit insertion through a minimally invasive portal, yet resilient enough to substantially assume, or tend towards, the desired form in vivo with additional forming there as needed. | 09-25-2008 |
20080255665 | ANCHORED PROSTHETIC MENISCUS DEVICE - A human implantable meniscus device having a unique anchoring system for locking the device into a bone and reinforcing fibers in order to mimic the mechanical characteristics of natural meniscus. | 10-16-2008 |
20080262615 | Digital Joint Arthroplasty - The invention concerns a digital joint arthroplasty ( | 10-23-2008 |
20080262616 | OSTEOCHONDRAL GRAFT AND METHOD OF USE FOR REPAIRING AN ARTICULAR CARTILAGE DEFECT SITE - An osteochondral graft for use in repairing an articular cartilage defect site includes a cartilage cap and a wall extension. The cartilage cap has a top surface and a bottom surface with the wall extension projecting from the bottom surface. The wall extension includes an external surface and an internal surface with the internal surface defining an internal space. At least one of the internal surface or external surface may be tapered at an angle to facilitate implantation of the graft. The graft may be fabricated from collagen and configured as a composite construct, the cartilage cap being made from a porous collagen material to facilitate cartilage regeneration and the wall extension being made from a substantially cross-linked collagen to provide structural strength to facilitate insertion of the graft into the articular cartilage defect site. A method of repairing an articular cartilage defect with the osteochondral graft is also disclosed. | 10-23-2008 |
20080262617 | INTERSPINOUS SPACER - A spacer for maintaining separation between adjacent spinous processes having a first and second end support, a connecting member, and a central member positioned between the first and second end supports. The spacer is adjustable between a collapsed configuration and an expanded configuration such that when the connection member is pulled to bring the first and second end supports closer together, the central member expands into the expanded configuration to contact and support adjacent spinous processes. | 10-23-2008 |
20080262618 | DEVICE FOR CARTILAGE REPAIR - A prosthesis device comprising a body at least partly formed from a biocompatible segmented thermoplastic elastomer having crystallized blocks, and at least one functional component which is able to reversibly bond to the crystallized blocks, wherein the elastomer has cartilage regenerative properties. A method is provided for the preparation of the biocompatible elastomer having cartilage regenerative properties, and a method for incorporating the biocompatible elastomer in a prosthesis device able to grow into cartilage. | 10-23-2008 |
20080269895 | Implant for the Repair of a Cartilage Defect and Method for Manufacturing the Implant - For the repair of a cartilage defect in a human or animal patient, e.g. a full thickness articular cartilage defect, use is made of an implant ( | 10-30-2008 |
20080275555 | Extra-Articular Implantable Mechanical Energy Absorbing Systems - A system and method for sharing and absorbing energy between body parts. In one particular aspect, the system facilitates absorbing energy between members forming a joint such as between articulating bones. | 11-06-2008 |
20090012615 | SURGICALLY IMPLANTABLE PROSTHESIS WITH ACTIVE COMPONENT - A prosthesis for surgical implantation into a knee joint compartment between a femoral condyle and its corresponding tibial plateau includes a body including a bottom face, an opposed top face, and a peripheral edge extending between the top and bottom faces. The body has a first portion and at least one second portion, wherein at least one second portion is configured to store and release at least one active component into the knee joint compartment without degradation of the mechanical function of the prosthesis. | 01-08-2009 |
20090018656 | SURGICAL IMPLANTATION METHOD AND DEVICES FOR AN EXTRA-ARTICULAR MECHANICAL ENERGY ABSORBING APPARATUS - A surgical implantation approach for preparing a patient and precisely and effectively placing an energy absorbing apparatus relative to the patient's anatomy. Various surgical implantation apparatus and methods for achieving proper device-to-anatomy juxtapositional relationships are employed in the implantation approach. | 01-15-2009 |
20090036984 | Artificial meniscus part and knee-joint prosthesis - The invention relates to an artificial meniscus part for a knee-joint prosthesis that has on an upper side at least one femoral joint surface for the movable mounting of an artificial, natural or machined condyle of a femur, wherein the at least one femoral joint surface is configured in the form of a depression facing away from the meniscus part wherein the depression has an anterior and a posterior end region and a width of the depression has a minimum between the anterior and the posterior end region. | 02-05-2009 |
20090043389 | CARTILAGE IMPLANT PLUG WITH FIBRIN GLUE AND METHOD FOR IMPLANTATION - The invention is directed toward a cartilage repair assembly comprising a shaped structure of subchondral bone with an integral overlying cartilage cap which is treated to remove cellular debris and proteoglycans and milled cartilage in a bioabsorbable carrier. The shaped structure is dimensioned to fit in a drilled bore in a cartilage defect area so that said shaped bone and cartilage cap when centered in the bore does not engage the side wall of the bore in an interference fit and is surrounded by milled cartilage and carrier. A method for inserting the assembly into a cartilage defect area is disclosed. | 02-12-2009 |
20090076605 | ARTIFICIAL JOINT SUPPORT BETWEEN FIRST AND SECOND BONES - 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, | 03-19-2009 |
20090088846 | Hydrogel arthroplasty device - An arthroplasty device is provided having an interpenetrating polymer network (IPN) hydrogel that is strain-hardened by swelling and adapted to be held in place in a joint by conforming to a bone geometry. The strain-hardened IPN hydrogel is based on two different networks: (1) a non-silicone network of preformed hydrophilic non-ionic telechelic macromonomers chemically cross-linked by polymerization of its end-groups, and (2) a non-silicone network of ionizable monomers. The second network was polymerized and chemically cross-linked in the presence of the first network and has formed physical cross-links with the first network. Within the IPN, the degree of chemical cross-linking in the second network is less than in the first network. An aqueous salt solution (neutral pH) is used to ionize and swell the second network. The swelling of the second network is constrained by the first network resulting in an increase in effective physical cross-links within the IPN. | 04-02-2009 |
20090118830 | Surgically Implantable Knee Prosthesis - A prosthesis is provided for implantation into a knee joint compartment between a femoral condyle and its corresponding tibial plateau without requiring bone resection. The prosthesis includes a body having a generally elliptical shape in plan and a pair of opposed surfaces where one of the surfaces is generally concave. The body further includes an exterior portion and an interior portion, where the exterior portion is constructed from a higher modulus material than the interior portion such that the body is at least slightly deformable. | 05-07-2009 |
20090125108 | ARTIFICIAL KNEE IMPLANT INCLUDING LIQUID BALLAST SUPPORTING / ROTATING SURFACES AND INCORPORATING FLEXIBLE MULTI-MATERIAL AND NATURAL LUBRICANT RETAINING MATRIX APPLIED TO A JOINT SURFACE - 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. | 05-14-2009 |
20090132045 | INSTRUMENT FOR USE IN A JOINT REPLACEMENT PROCEDURE - A trial implant component for use in a surgical procedure for replacement of a joint prosthesis at a joint between a long bone and another bone includes a metaphyseal part which can be located so that it extends into a cavity at the resected face of the long bone in contact with the internal wall of the cavity in the metaphyseal region. The metaphyseal part has a part of a spigot and socket assembly for engaging a mating component which has the corresponding part of the said assembly. The spigot and socket assembly defines an assembly axis, in which the ratio of the length of the metaphyseal part measured between the superior and inferior faces along the assembly axis to its width at the superior face measured generally along the medial-lateral axis is not more than about 1.0. | 05-21-2009 |
20090132046 | Implant for Use with an Osteotomy Plate - The subject of the invention is an implant made of bioinert material to be used with an osteotomy plate to correct the alignment of the lower limbs by addition, this implant having a housing that opens onto its upper and lower surfaces, this implant being characterized in that it has sufficient mechanical strength to transmit and/or absorb the loads to which it is subjected so as to protect a bone precursor placed in the housing and is extractible without notably weakening the bone reconstruction, and to this end the housing that houses the bone precursor has a hollow shape and the implant occupies a volume on the order of 10 to 35% of the osteotomy site. | 05-21-2009 |
20090132047 | ANCHORING SYSTEMS AND INTERFACES FOR FLEXIBLE SURGICAL IMPLANTS FOR REPLACING CARTILAGE - Surgical implants for replacing cartilage are provided with hydrogel polymers affixed to anchors made of “shape-memory” materials, such as nitinol alloys. These implants can be flexed, allowing them to be inserted into joints arthroscopically. After insertion, an implant will return to its manufactured size and shape, and can be anchored to bone or other tissue. The anchoring components can grip and hold hydrogels or other soft polymers by means of an interface of porous fabric. The fabric can support a reinforcing mesh embedded within the soft polymer, and its bottom surface can promote tissue ingrowth, leading to stronger anchoring. Two or more porous layers can enclose a soft polymer, for purposes such as sustained drug release or holding transplanted cells. | 05-21-2009 |
20090210057 | Multi-layered implant prepared by a method of tissue repair using a multi-layered matrix - A multi-layered matrix, a method of tissue repair using the same, and multi-layered implant prepared thereof are provided. The multi-layered matrix comprises a first element and a second element connected thereto, and the second element comprises a hollow cavity. The first and the second elements are composed of a composite material comprising a bioabsorbable porous material. | 08-20-2009 |
20090228104 | Cartilage implants and methods of use - Cartilage implant devices, and method of using the same, are provided. 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. | 09-10-2009 |
20090228105 | ARTIFICIAL CARTILAGE CONTAINING CHONDROCYTES OBTAINED FROM COSTAL CARTILAGE AND PREPARATION PROCESS THEREOF - The present invention relates to an artificial cartilage containing mesenchymal stem cell (MSC)-like dedifferentiated cells obtained by passage culturing costal chondrocytes, and a preparation process thereof. | 09-10-2009 |
20090259311 | Tensioned Meniscus Prosthetic Devices and Associated Methods - 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. | 10-15-2009 |
20090259312 | Meniscus Prosthetic Devices with Anti-Migration Features - 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 includes an anti-migration feature. The anti-migration feature is a bridge for engagement with a femur notch in some instances. Generally, the anti-migration feature allows the artificial meniscus to be implanted into the patient's knee and maintain its position within the knee without penetrating the adjacent bone. The bridge is reinforced with fibers in some instances. | 10-15-2009 |
20090259313 | MANUFACTURING AND MATERIAL PROCESSING FOR PROSTHETIC DEVICES - Methods of manufacturing prosthetic devices for use as an artificial meniscus are disclosed. In some embodiments, the methods include injection molding a resilient core material, tensioning reinforcing fibers around the injection molded core, and injection molding an outer layer to embed the reinforcing fibers within the prosthetic device. In some instances the core material is a polycarbonate polyurethane and the reinforcing fibers are made of ultra-high molecular weight polyethylene (UHMWPE) having a lower melting temperature than the polyurethane. In one particular embodiment, the core material is Bionate 80A and the reinforcing fibers are made of Dyneema. In other embodiments, methods for manufacturing a reinforced material for use in prosthetic devices is disclosed. | 10-15-2009 |
20090259314 | Meniscus prosthetic device selection and implantation methods - 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. Methods of implanting meniscus prosthetic devices are also disclosed. | 10-15-2009 |
20090276045 | Devices and Methods for Treatment of Facet and Other Joints - Embodiments of the present invention describe methods, devices and instruments for resurfacing or replacing facet joints, uncovertebral joints and costovertebral joints. The joints can be prepared by smoothing the articular surface on one side, by distracting the joint and by implant insertion. Implants can be stabilized against a first articular surface by creating a high level of conformance with said first articular surface, while smoothing the second articular surface with a surgical instrument with a smooth mating implant surface. | 11-05-2009 |
20090306778 | BUFFER FOR A HUMAN JOINT AND METHOD OF ARTHROSCOPICALLY INSERTING | 12-10-2009 |
20100004743 | Talar implants and methods of use - Implant devices, and method of using the same, are provided. The implant devices have a head and a stem. The head has an upper surface, an anterior surface, a posterior surface, a lateral surface and a lower surface. The anterior surface, the lateral surface, and the lower surface are approximately perpendicular to and intersect each other. The anterior surface and the posterior surface are approximately parallel to each other. Preferably, the upper surface has a general shape of at least a portion of a superior articular surface of a talus and at least a portion of a medial articular surfaces of a talus. The stem has a truncated conical portion and a cylindrical portion. The cylindrical portion is affixed to the lower surface of the head, and the truncated conical portion is affixed to the cylindrical portion. | 01-07-2010 |
20100023126 | Resilient arthroplasty device - The disclosure is directed to a resilient implant for implantation into human or animal joints to act as a cushion allowing for renewed joint motion. The implant endures variable joint forces and cyclic loads while reducing pain and improving function after injury or disease to repair, reconstruct, and regenerate joint integrity. The implant is deployed in a prepared debrided joint space, secured to at least one of the joint bones and expanded in the space, molding to surrounding structures with sufficient stability to avoid extrusion or dislocation. The implant has opposing walls that move in varied directions, and an inner space filled with suitable filler to accommodate motions which mimic or approximate normal joint motion. The implant pads the damaged joint surfaces, restores cushioning immediately and may be employed to restore cartilage to normal by delivering regenerative cells. | 01-28-2010 |
20100023127 | PROSTHETIC DEVICES AND METHODS FOR USING SAME - A prosthesis for reducing injury to soft tissues of the body, comprising an implantable member adapted to simulate at least one of a size or a shape of a naturally occurring bursa, where the member may be inflatable or otherwise expandable, flexible or rigid, and may be composed of a biocompatible, biodegradable, or non-biodegradable material. The member is adapted to be implanted at a musculoskeletal attachment site or at a site between a muscle and a bone, and is shaped and sized to reduce injury to the site. The prosthesis may also include a plug which seals the prosthesis automatically upon removal of an inflation tube. | 01-28-2010 |
20100036492 | OSTEOCHONDRAL IMPLANTS, ARTHROPLASTY METHODS, DEVICES, AND SYSTEMS - Implants for resurfacing or repairing one or more articular cartilage bearing surfaces of a biological organism include an engineered tissue and a biocompatible porous substrate secured to the engineered tissue for attaching the implant to a native bone of the biological organism. The engineered tissue includes a scaffold containing a biocompatible material, and a plurality of living chondrocytes supported by the scaffold. Methods for culturing chondrocytes for incorporation into a biocompatible implant are provided. A bioreactor for producing functional cartilaginous tissue from a cell-seeded scaffold and a system for producing functional cartilaginous tissue are also provided. | 02-11-2010 |
20100036493 | MAGNETIC CUSHIONING DEVICES - A cushioning device that when implanted provides mobility and wear resisting cushioning to joints within a human body, provides a first component at least in part comprising at least one magnet, a second component at least in part comprising at least one magnet, the magnetic poles of said magnet of said first component, and the magnetic poles of said magnet of said second component, so disposed as to create a repelling force between said first and second components and therefore an opposing movement away from each other, and a third component comprising a magnetically attractable material disposed between said first and second components towards which said corresponding magnets are attracted, said attracting forces balancing and controlling said same repelling force so as to maintain said movement of said first and second components within said predetermined planar degree of freedom. | 02-11-2010 |
20100049321 | Fibrous Implants for Cartilage Repair or Replacement - An orthopedic device for repairing a cartilage defect and a method for utilizing the same. The orthopedic device includes an implant capable of attachment to bone, and a bearing portion extending from an exterior substrate of the implant. The implant may also include an anchor. The bearing portion includes a fibrous bearing surface configured to articulate against adjacent anatomical structures. | 02-25-2010 |
20100121451 | Cartilage Implants and Methods of Use - Cartilage implant devices having oval articular ends are provided. The articular ends have 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. The concave lower face has a first surface comprising a second circular pitch radius and a second circular roll radius, and at least two second surfaces each second surface having a third circular pitch radius and a third circular roll radius. The convex upper face blends into a rim, wherein at least a first and second portion of the rim extends at least a first distance along the vertical axis and a third and fourth portion of the rim tapers inward along the vertical axis, the rim blends into the concave lower face. The implant devices further have a stem extending from the concave lower face away from the convex upper face. | 05-13-2010 |
20100121452 | Methods of Use of Cartilage Implants - Methods of using cartilage implant devices are provided. The methods include locating articular cartilage having a leasion, and utilizing an implant having dimensions compatible with the lesion. The method further includes forming a cavity in the articular cartilage, subchondral bone, and cancellous bond, and engaging the implant with the cavity so that the lower face of the articular end of the implant abuts against the subchondral bone, and the stem of the implant abuts against the cancellous bone. | 05-13-2010 |
20100131063 | Prosthesis for interpositional location between bone joint articular surfaces and method of use - A biocompatible prosthetic device comprising a thin low friction spacer for location to overlie a bone member in an interpositional location between opposed bone joint articular surfaces. The prosthesis is preferably a thin spacer with at least one low friction surface, the spacer being adapted for location about a bone member in an interpositional location between opposed bone joint articular surfaces preferably about a margin of articular cartilage of a bone member's condyle, preferably without any modification of the articular surface of the condyle. One preferred use of a prosthesis is in a human temporomandibular joint as a thin cap-like member fitted closely over the mandibular condyle to be disposed intermediate of the mandibular condyle and the mandibular fossa of the temporomandibular joint. | 05-27-2010 |
20100145451 | JOINT SUPPORT AND SUBCHONDRAL SUPPORT SYSTEM - A joint support and subchondral support system for providing structural and dampening support to damaged subchondral bone in generalized or discrete arthritis includes a contoured, porous plate having a variable shaped inner surface, outer surface, and peripheral surface of variable thickness extending between the inner surface and the outer surface, suitable for insertion within the subchondral bone. The inner surface, outer surface and peripheral surface each have a concave portion and a convex portion. A guide pin hole or slot is located within the contoured, porous plate to aid in insertion and placement of the plate over at least one corresponding guide pin within the subchondral bone. The joint support and subchondral support system of the present invention is applicable to many parts of the joint as any area with cartilage disease has an adjoining subchondral component. | 06-10-2010 |
20100152852 | PREPARATION OF TISSUE FOR MENISCAL IMPLANTATION - 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. | 06-17-2010 |
20100168856 | Multiple piece tissue void filler - A method for the repair of a cartilage defect in a patient in need thereof, including implanting an implant into the cartilage defect, wherein the implant may comprise at least a first material, wherein the first material may be porous and may be a scaffold that is expandable or compressible. The invention also includes an implant for the repair of a cartilage defect in a patient in need thereof, the implant may include at least a first material and a second material, wherein the first material may be porous and may be a scaffold that is expandable or compressible, and wherein the first material may surround the second material. | 07-01-2010 |
20100168857 | FLEXIBLY COMPLIANT CERAMIC PROSTHETIC MENISCUS FOR THE REPLACEMENT OF DAMAGED CARTILAGE IN ORTHOPEDIC SURGICAL REPAIR OR RECONSTRUCTION OF HIP, KNEE, ANKLE, SHOULDER, ELBOW. WRIST AND OTHER ANATOMICAL JOINTS - A Flexibly compliant ceramic prosthetic meniscus for the replacement of damaged cartilage in the orthopedic surgical repair or reconstruction of hip, knee, ankle, shoulder, elbow, wrist, and other anatomical joints. | 07-01-2010 |
20100222882 | JOINT BIOSCAFFOLDS - 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. | 09-02-2010 |
20100241228 | ENGINEERED OSTEOCHONDRAL CONSTRUCT FOR TREATMENT OF ARTICULAR CARTILAGE DEFECTS - An implant for articular cartilage repair includes (1) a three-dimensional body formed of cancellous bone having a demineralized section that contains bone morphogenetic proteins (BMP's) that are released by the demineralization but retained in the body, and (2) a cartilage layer formed on a surface of the demineralized section. The cartilage layer is formed by a method including the steps of (a) isolating chondrocytes from articular cartilage of a donor; (b) cultivating the isolated chondrocytes in a medium; (c) adding the cultivated chondrocytes to the demineralized section of the body, whereby the cultivated chondrocytes are stimulated by the BMP's retained in the body; and (d) incubating the cultivated chondrocytes to form a plurality of layers of chondrocytes on the demineralized section, wherein the plurality of layers of chondrocytes forms the cartilage layer. | 09-23-2010 |
20100312342 | Articular Surface Implant - An implant for replacing a portion of an articular surface including a load bearing surface and a bone contacting region. The load bearing surface had a contour defined by a first curve string which is based on a contour of the articular surface being replaced in a first plane. The load bearing surface of the implant is further defined by the contour of the articular surface being replaced in a second plane, in which the first and second planes are mutually intersection planes. | 12-09-2010 |
20100331979 | Biphasic implant device transmitting mechanical stimulus - Tissue implants prepared for the repair of tissues, especially avascular tissues such as cartilage. One embodiment presents an electric potential capable of receiving and accumulating desirable factors or molecules from surrounding fluid when exposed to dynamic loading. In another embodiment the implant promotes tissue conduction by retarding, restricting and controlling cellular invasion through use of gradients until competent tissue forms. Further embodiments of the tissue implants may be formed into a multi-phasic device that provides deep tissue mechanical stimulus by conduction of mechanical and fluid forces experienced at the surface of the implant. | 12-30-2010 |
20110004305 | ELEVATED IMPLANT FOR THE RECONSTRUCTION OF MENISCUS DEFECTS OR PARTIAL MENISCUS DEFECTS - An implant for reconstructing meniscus defects or partial meniscus defects includes an elevated molding with a femoral condylar contact area, a tibial condylar contact area and an articular capsule contact area, in the manner of an artificial meniscus or artificial partial meniscus with a contour of an outer area that is substantially the same as a natural meniscus or partial meniscus, wherein at least one additional elevation is formed on the outer area of the elevated molding. | 01-06-2011 |
20110009964 | PARTIAL JOINT RESURFACING IMPLANT, INSTRUMENTATION AND METHOD - 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. | 01-13-2011 |
20110046735 | Patient-Specific Implants - An endoprosthetic device includes a monolithic meniscal implant having a three-dimensional patient-specific tibial engagement surface nesting in and complementary to a proximal surface of the proximal tibia of a patient and a femoral articulating surface opposite to the tibial engagement surface for articulating with a femoral condyle of the patient. The meniscal implant includes a first portion and a second remainder portion, wherein the first portion is compressible relative to the second remainder portion. | 02-24-2011 |
20110060412 | Tissue Engineered Meniscus Repair Composition - A meniscus repair composition for application to a meniscus injury to promote growth of new tissue at the meniscus injury site is provided. The composition comprises: from about 10 to about 50 percent by weight of allograft meniscus particles having an average particle size of from about 10 μm to about 500 μm; and a carrier comprising a solid fibrin web matrix. When introduced to a defect site in a meniscus, the composition is non-adhering to the defect site. A method for repairing a meniscus injury comprises administering a meniscus repair composition to the injury site. | 03-10-2011 |
20110066243 | PROSTHESIS FOR REPLACEMENT OF CARTILAGE - A cartilage replacement or repair prosthesis comprises a layer of streamlined elastomer elements, preferably in the form of spheres, supported in a matrix material so that the radially opposed surfaces of the spheres are positioned on opposite surfaces of the layer and make contact with the opposed surfaces of the femur and tibia and the forces exerted between these bones extend through the streamlined elements. The matrix material has a substantially lower resistance to deformation than the spheres to control the position of the spheres relative to one another without significantly restraining their load-responsive deformation under forces exerted between the femur and tibia. The layer, with its elastomeric inserts, is sufficiently thin and flexible to allow it to be rolled for arthroscopic insertion into a knee joint. | 03-17-2011 |
20110082548 | LOW FRICTION RESURFACING IMPLANT - A low friction resurfacing implant system including a first implant component and a second implant component. The first implant component has a first bearing surface. The second implant component has a second bearing surface. The first implant component and the second implant component are each fabricated from a durable material that possesses a low coefficient of friction. | 04-07-2011 |
20110093073 | TISSUE ENGINEERED FIBROCARTILAGE REPLACEMENT - Fibrocartilage implants characterized by circumferential fiber networks embedded in arcuate or torroidal scaffolds with orthogonal fiber networks embedded therein to prevent separation of the circumferential fiber networks. The fiber networks convert axial compressive forces on the scaffolds to tensile loads on the circumferential fibers. Artificial knee meniscus and vertebral disc implants are disclosed, as well as articular disc implants for joints such as the temporomandibular joint and wrist. Methods for implanting the fibrocartilage devices are also disclosed. | 04-21-2011 |
20110172768 | KNEE JOINT PROSTHESIS AND HYALURONATE COMPOSITIONS FOR TREATMENT OF OSTEOARTHRITIS - A medical device and methods to relieve joint pain and adapted for knee joint repair, replacement and augmentation. The invention discloses joint lubricant, particularly hyaluronate compositions and methods for treatment of osteoarthritis. | 07-14-2011 |
20110190887 | SURGICAL TECHNIQUE USING A CONTOURED ALLOGRAFT CARTILAGE AS A SPACER OF THE CARPO-METACARPAL JOINT OF THE THUMB OR CARPO-METATARSAL JOINT OF THE TOE - 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. | 08-04-2011 |
20110224790 | DISC-BASED ORTHOPEDIC DEVICES - 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. | 09-15-2011 |
20110224791 | Orthopedic implant with bone interface anchoring - A cartilage resurfacing implant is provided for replacing cartilage of an articulating portion of a bone at a skeletal joint having opposed joint surfaces. The cartilage resurfacing implant includes a body having a bearing surface and a bone interface. The bearing surface is able to support articulation with an opposing joint surface. | 09-15-2011 |
20110238180 | CARTILAGE REPLACEMENT IMPLANT AND METHOD FOR PRODUCING A CARTILAGE REPLACEMENT IMPLANT - To improve a cartilage replacement implant for the biological regeneration of a damaged cartilage area of articular cartilage in the human body, comprising a cell carrier which has a defect-contacting surface for placement on the damaged cartilage area and is formed and designed for colonization with human cells, so that after implantation of the cartilage replacement implant, formation of a gap between adjacent contact surfaces of the implant and surrounding recipient tissue is minimized, it is proposed that the cell carrier rest with surface-to-surface contact on a carrier and be joined to the carrier at a cell carrier surface that faces away from the defect-contacting surface. A method for producing a cartilage replacement implant is also proposed. | 09-29-2011 |
20110270393 | BUFFER FOR A HUMAN JOINT AND METHOD OF ARTHROSCOPICALLY INSERTING | 11-03-2011 |
20110282451 | MEDICAL COMPONENT - A biocompatible medical component comprising•a hybrid fabric comprising i. at least one type of second fibre, and ii. at least one type of first fibre, and•a structural component, wherein the Young's modulus of said second fibre is at least 125% of the Young's modulus of the first fiber. | 11-17-2011 |
20110288642 | FOAM CUSHION FOR INSERTION IN A KNEE JOINT - A cushion is disclosed for insertion in a patient's knee joint to serve as a buffer between a patient's femur and tibia. The cushion is filled with a substantially incompressible fluid, which can be a foam or a gel or a liquid, like water, which is capable of supporting the entire weight of the patient's body. The cushion is preferably made from a flexible material that allows relative movement between the patient's femur and tibia, while resisting rupture as it supports these two bones as they are moving relative to one another as the knee joint is flexed, bent or extended. | 11-24-2011 |
20110288643 | Meniscus Prosthetic Device Selection and Implantation Methods - 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. Methods of implanting meniscus prosthetic devices are also disclosed. | 11-24-2011 |
20120004725 | Tensioned Meniscus Prosthetic Devices and Associated Methods - 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. | 01-05-2012 |
20120022649 | DISC-SHAPED ORTHOPEDIC DEVICES - 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. | 01-26-2012 |
20120116510 | METHODS OF USE OF CARTILAGE IMPLANTS - Methods of using cartilage implant devices are provided. The methods include locating articular cartilage having a leasion, and utilizing an implant having dimensions compatible with the lesion. The method further includes forming a cavity in the articular cartilage, subchondral bone, and cancellous bond, and engaging the implant with the cavity so that the lower face of the articular end of the implant abuts against the subchondral bone, and the stem of the implant abuts against the cancellous bone. | 05-10-2012 |
20120165939 | NONWOVEN TISSUE SCAFFOLD - A biocompatible meniscal repair device is disclosed. The tissue repair device includes a scaffold adapted to be placed in contact with a defect in a meniscus, the scaffold comprising a high-density, dry laid nonwoven polymeric material and a biocompatible foam. The scaffold provides increased suture pull-out strength. | 06-28-2012 |
20120185044 | JOINT SUPPORT AND SUBCHONDRAL SUPPORT SYSTEM - 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. | 07-19-2012 |
20120191187 | System and Method for Joint Resurface Repair - A system for positioning an element relative to an articular surface. An embodiment of the system may include a first element having a positional reference relative to an articular surface. The system may further include a second element capable of indicating the positional reference of the first element relative to said articular surface. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment. | 07-26-2012 |
20120203342 | ARTICULAR CARTILAGE IMPLANTS - 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. | 08-09-2012 |
20120203343 | METHODS OF ARTICULAR CARTILAGE IMPLANTS - 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. | 08-09-2012 |
20120209382 | IMPLANTABLE MEDICAL DEVICE AND METHOD OF IMPLANTING THE MEDICAL DEVICE - An implantable medical device for implantation in a mammal joint having at least two contacting surfaces is provided. The medical device comprises; an artificial contacting surface adapted to replace at least the surface of at least one of the mammal's joint contacting surfaces, wherein the artificial contacting surface is adapted to be lubricated, when implanted in said joint. Furthermore the medical device comprises at least one inlet adapted to receive a lubricating fluid from a reservoir, at least one channel at least partly integrated in the artificial contacting surface in connection with the at least one inlet for distributing the lubricating fluid to the surface of the artificial contacting surface. The medical device could be adapted to be operable by an operation device to receive the distributed lubricated fluid from a reservoir. | 08-16-2012 |
20120232656 | METHOD AND IMPLANT FOR REPLACING DAMAGED MENISCAL TISSUE - 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. | 09-13-2012 |
20120232657 | Hydrogel Arthroplasty Device - An arthroplasty device is provided having an interpenetrating polymer network (IPN) hydrogel that is strain-hardened by swelling and adapted to be held in place in a joint by conforming to a bone geometry. The strain-hardened IPN hydrogel is based on two different networks: (1) a non-silicone network of preformed hydrophilic non-ionic telechelic macromonomers chemically cross-linked by polymerization of its end-groups, and (2) a non-silicone network of ionizable monomers. The second network was polymerized and chemically cross-linked in the presence of the first network and has formed physical cross-links with the first network. Within the IPN, the degree of chemical cross-linking in the second network is less than in the first network. An aqueous salt solution (neutral pH) is used to ionize and swell the second network. The swelling of the second network is constrained by the first network resulting in an increase in effective physical cross-links within the IPN. | 09-13-2012 |
20120239146 | CARTILAGE IMPLANT - The present invention is directed to compositions having at least one neocartilage particle, juvenile cartilage particle or a combination thereof and a matrix, and methods and devices that include the compositions. | 09-20-2012 |
20120265300 | Aligned Fibrous Materials With Spatially Varying Fiber Orientation and Related Methods - Provided are materials comprising layers of anisotropically aligned fibers, the alignment of which fibers may be adjusted so as to give rise to circumferentially-aligned fibers that replicate the fiber alignment of native fibrous tissue, such as the meniscus or the annulus fibrosis. Also provided are laminates formed from the disclosed materials, as well as methods of fabricating the disclosed materials and laminates. | 10-18-2012 |
20120271417 | System and Method for Joint Resurface Repair - 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. | 10-25-2012 |
20120290088 | System and Method for Prosthetic Fitting and Balancing in Joints - A device for intraoperative use in balancing joint forces and verifying the placement of the tibial component in total knee arthroplasty includes a spacer defining an enclosure; the spacer is sized to engage a top portion of the tibial component. A sensor array is embedded in the spacer, the sensor array measures forces on the spacer. A wireless transceiver is embedded in the spacer and forwards the output to a processor. The processor is analyzes the output and creates a pressure distribution graph indicative of the forces on the spacer, thereby assisting a surgeon in performing selective soft tissue release or component positioning in connection with surgical implantation of an orthopedic knee prosthesis. | 11-15-2012 |
20120303122 | PROSTHETIC IMPLANT AND ASSOCIATED INSTRUMENTS - A prosthetic implant comprises an articular surface and a bone contacting surface. The articular surface has a first concavity extending along a first curved axis and the bone contacting surface has a convexity extending along a second curved axis. Geometric relationships between the concavity of the articular surface and convexity of the bone contacting surface are described. A resulting feature of this implant is a bone contacting surface including both planar and non-planar geometries. Instrumentation and a method for the preparation of the non-planar bone surface are also described. | 11-29-2012 |
20120310347 | Devices, Methods, and Systems for Prosthetic Meniscus Selection, Trialing, and Implantation - 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. | 12-06-2012 |
20130013066 | Methods and Devices for Joint Load Control During Healing of Joint Tissue - 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. | 01-10-2013 |
20130013067 | Transcutaneous Joint Unloading Device and Method - 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. | 01-10-2013 |
20130018464 | JOINT ARTHROPLASTY DEVICES AND SURGICAL TOOLS - Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty. | 01-17-2013 |
20130023989 | Meniscus Prosthetic Device - A prosthetic device that may be utilized as an artificial meniscus is disclosed. The prosthetic device can restore shock absorption, stability, and function to the knee after the damaged natural meniscus is removed and replaced with the prosthetic device. In some embodiments, the meniscus includes an integral fixation anchor and additional features that minimize the requirement for modification of the implant for proper fit during surgery. | 01-24-2013 |
20130030528 | Implantation of Cartilage - The invention is directed towards a process for implanting a cartilage graft into a cartilage defect and sealing the implanted cartilage graft with recipient tissue. The invention is also directed towards a process for repairing a cartilage defect and implanting a cartilage graft into a human or animal. The invention is further directed toward a repaired cartilage defect. | 01-31-2013 |
20130041468 | DISC-SHAPED ORTHOPEDIC DEVICES - 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. | 02-14-2013 |
20130060334 | MENISCUS REPAIR ASSEMBLY AND METHOD - The present invention provides an assembly for repairing a tear or lesion in a body tissue such as a meniscus including a scaffold material and methods using such an assembly in repairing a tear or lesion. | 03-07-2013 |
20130079876 | JOINT ARTHROPLASTY DEVICES AND SURGICAL TOOLS - Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty. | 03-28-2013 |
20130079877 | NON-RESORBABLE MENISCUS PROSTHESIS FOR THE HUMAN KNEE JOINT - 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. | 03-28-2013 |
20130085569 | CROSSLINKER ENHANCED REPAIR OF KNEE MENISCUS - A method of treating a tear in a knee meniscus of a patient. The method includes exposing the torn knee meniscus to a protein crosslinker during surgery to repair the tear. Also provided is a fixation device for the surgical repair of tears of the meniscus of the knee, where the device contains one or more protein crosslinking reagents. | 04-04-2013 |
20130096680 | Instrumentation for repair of meniscus tissue - 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. | 04-18-2013 |
20130116788 | PARTIAL JOINT RESURFACING IMPLANT, INSTRUMENTATION, AND METHOD - 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. | 05-09-2013 |
20130131804 | Joint Repair Using Mesenchymal Stem Cells - A method of repairing and/or stabilizing a joint by administering mesenchymal stem cells to the joint. Such a method provides for the regeneration of cartilaginous tissue in the joint, including meniscal tissue. | 05-23-2013 |
20130138209 | KNEE JOINT PROSTHESIS AND HYALURONATE COMPOSITIONS FOR TREATMENT OF OSTEOARTHRITIS - A medical device and methods to relieve joint pain and adapted for knee joint repair, replacement and augmentation. The invention discloses joint lubricant, particularly hyaluronate compositions and methods for treatment of osteoarthritis. | 05-30-2013 |
20130138210 | HYDROPHILIC INTERPENETRATING POLYMER NETWORKS DERIVED FROM HYDROPHOBIC POLYMERS - A composition of matter comprising a water-swellable IPN or semi-IPN including a hydrophobic thermoset or thermoplastic polymer and an ionic polymer, articles made from such composition and methods of using such articles. The invention also includes a process for producing a water-swellable IPN or semi-IPN from a hydrophobic thermoset or thermoplastic polymer including the steps of placing an ionizable monomer solution in contact with a solid form of the hydrophobic thermoset or thermoplastic polymer; diffusing the ionizable monomer solution into the hydrophobic thermoset or thermoplastic polymer; and polymerizing the ionizable monomers to form a ionic polymer inside the hydrophobic thermoset or thermoplastic polymer, thereby forming the IPN or semi-IPN. | 05-30-2013 |
20130138211 | HYDROPHILIC INTERPENETRATING POLYMER NETWORKS DERIVED FROM HYDROPHOBIC POLYMERS - A composition of matter comprising a water-swellable IPN or semi-IPN including a hydrophobic thermoset or thermoplastic polymer and an ionic polymer, articles made from such composition and methods of using such articles. The invention also includes a process for producing a water-swellable IPN or semi-IPN from a hydrophobic thermoset or thermoplastic polymer including the steps of placing an ionizable monomer solution in contact with a solid form of the hydrophobic thermoset or thermoplastic polymer; diffusing the ionizable monomer solution into the hydrophobic thermoset or thermoplastic polymer; and polymerizing the ionizable monomers to form a ionic polymer inside the hydrophobic thermoset or thermoplastic polymer, thereby forming the IPN or semi-IPN. | 05-30-2013 |
20130144385 | PROSTHETIC MENISCI AND METHOD OF IMPLANTING IN THE HUMAN KNEE JOINT - Prosthetic knee menisci to be implanted in place of deteriorated native menisci to prevent damage to the articular cartilage of the femoral and tibial condyles and to arrest the progressive development of osteoarthritis; said prosthetic menisci being sized and shaped to be congruent with the femoral and tibial condylar surfaces; being of reinforced construction for strength and durability; being made from materials having elastomeric characteristics similar to those of native menisci; having bearing surfaces treated chemically and/or physically to improve the efficiency of lubrication by synovial fluid; being restricted in translation within the interarticular space by a plurality of locating elements of various forms circumferentially distributed in the zone between said prosthetic menisci and circumferentially-arranged, enclosing locating bands; having optional internal elements for stiffening and anchoring purposes, optional external elements for stiffening purposes and optional straps joining their ends to transmit hoop stresses. | 06-06-2013 |
20130150964 | BIODEGRADABLE POLYURETHANE/UREA COMPOSITIONS - The present invention relates to biocompatible, biodegradable polyurethane/urea polymeric compositions that are capable of in-vivo curing with low heat generation to form materials suitable for use in scaffolds in tissue engineering applications such as bone and cartilage repair. The polymers are desirably flowable and injectable and can support living biological components to aid in the healing process. They may be cured ex-vivo for invasive surgical repair methods, or alternatively utilized for relatively non-invasive surgical repair methods such as by arthroscope. The invention also relates to prepolymers useful in the preparation of the polymeric compositions, and to methods of treatment of damaged tissue using the polymers of the invention. | 06-13-2013 |
20130172999 | MULTILAYERED SILK SCAFFOLDS FOR MENISCUS TISSUE ENGINEERING - 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. | 07-04-2013 |
20130184820 | PARTIAL JOINT RESURFACING IMPLANT, INSTRUMENTATION, AND METHOD - 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. | 07-18-2013 |
20130190873 | RIM ANCHORING SYSTEMS FOR FLEXIBLE SURGICAL IMPLANTS FOR REPLACING CARTILAGE - Flexible cartilage-replacing implants are disclosed that use either or both of ( | 07-25-2013 |
20130226298 | METHOD OF USE OF TROCHLEAR IMPLANTS - 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. | 08-29-2013 |
20130268074 | PROSTHETIC MENISCI AND METHOD OF IMPLANTING IN THE HUMAN KNEE JOINT - Prosthetic knee menisci to be implanted in place of deteriorated native menisci to prevent damage to the articular cartilage of the femoral and tibial condyles and, thereby, to arrest the progressive development of osteoarthritis; said prosthetic menisci being made as a hollow form and inflated after implantation by injection of a settable polymer to shape them into congruence with the femoral and tibial condyles; being sized for the femoral and tibial condylar surfaces; having internal reinforcement for strength and durability; being made from materials having elastomeric characteristics similar to those of native menisci; having bearing surfaces treated chemically and/or physically to improve the efficiency of lubrication by synovial fluid and to enhance the wear characteristics of the bearing surfaces; and being restricted in translation within the interarticular space by anchorage of their anterior and posterior horns and by the provision of secondary locating elements. | 10-10-2013 |
20130304209 | BIOLOGIC PARTIAL MENISCUS AND METHOD OF PREPARATION - Biologic partial menisci (biologic partial meniscal replacements/constructs) used to replace at least a part of a meniscus, and methods of forming such biologic partial menisci. Meniscal cartilage is employed to form a moldable allograft paste. A sterile mold that replicates a meniscus (for example, the medial or lateral meniscus) is provided in various sizes and is used as a biologic mold to recreate the anatomic shape of the meniscus. The moldable paste is inserted (for example, injected) into the mold and allowed to set into a stable, anatomically shaped meniscus (the biologic partial meniscus). Fibrin glue or other biologic adhesives or strengtheners may be optionally added to provide further biomechanical strength. Once the biologic partial meniscus is removed from the mold, it is provided at the surgical site and attached to the excised meniscus (placed into the correct anatomical shape) to complete the meniscal repair. | 11-14-2013 |
20130325126 | SUBCHONDRAL BONE REPAIR SYSTEM - 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. | 12-05-2013 |
20140031933 | IMPLANTABLE DEVICE AND METHOD TO REPLACE THE MENISCUS OF THE KNEE AND OTHER BODY STRUCTURES - A meniscus implant including a c-shaped scaffold having an arcuate middle section extending between an anterior end and a posterior end. A reinforcing network of fibers independent from the scaffold is embedded therein. Fibers of said network fibers exit each end of the scaffold to form respective anterior and posterior attachment segments which extend parallel to a central axis of the scaffold. The network of fibers is configured to convert an axial compressive force on said scaffold to tensile loads on said attachment points. | 01-30-2014 |
20140128973 | KNEE PROSTHESIS - A knee prosthesis for use in a total knee replacement surgical procedure may include a femoral component, a tibial component and a meniscal component. Optionally, the prosthesis may also include a patellar component. The femoral component may include a bone attachment side and a joint facing side, the latter including an anterior joint surface, a posterior joint surface having a cross-sectional shape defining a portion of a cylinder, and medial and lateral grooves between the anterior and posterior joint surfaces. The meniscal component may include a number of features designed to mate with the femoral component to provide relatively natural movement and range of motion about the knee joint as well as stability and resistance to wear and tear. | 05-08-2014 |
20140128974 | TUMID IMPLANT AND PUMP - 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. | 05-08-2014 |
20140142698 | METHODS AND DEVICES FOR JOINT LOAD CONTROL DURING HEALING OF JOINT TISSUE - 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. | 05-22-2014 |
20140172097 | Extra-Articular Implantable Mechanical Energy Absorbing Systems and Implantation Method - 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. | 06-19-2014 |
20140172098 | HYDROGEL ARTHROPLASTY DEVICE - An arthroplasty device is provided having an interpenetrating polymer network (IPN) hydrogel that is strain-hardened by swelling and adapted to be held in place in a joint by conforming to a bone geometry. The strain-hardened IPN hydrogel is based on two different networks: (1) a non-silicone network of preformed hydrophilic non-ionic telechelic macromonomers chemically cross-linked by polymerization of its end-groups, and (2) a non-silicone network of ionizable monomers. The second network was polymerized and chemically cross-linked in the presence of the first network and has formed physical cross-links with the first network. Within the IPN, the degree of chemical cross-linking in the second network is less than in the first network. An aqueous salt solution (neutral pH) is used to ionize and swell the second network. The swelling of the second network is constrained by the first network resulting in an increase in effective physical cross-links within the IPN. | 06-19-2014 |
20140207234 | Rim Anchoring Systems for Flexible Surgical Implants for Replacing Cartilage - 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. | 07-24-2014 |
20140222149 | Implant and Implant System - An implant system for implantation at a joint, the implant system including an implant device ( | 08-07-2014 |
20140249627 | Devices, Methods, and Systems for Prosthetic Meniscus Selection, Trialing, and Implantation - 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. | 09-04-2014 |
20140277451 | Meniscus Prosthetic Devices with Anti-Migration or Radiopaque Features - 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. | 09-18-2014 |
20140277452 | IMPLANTABLE REPAIR DEVICE - 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 μm 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. | 09-18-2014 |
20140296980 | METHOD AND IMPLANT FOR REPLACING DAMAGED MENISCAL TISSUE - 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. | 10-02-2014 |
20140296981 | Tensioned Meniscus Prosthetic Devices and Associated Methods - 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. | 10-02-2014 |
20140309739 | JOINT BIOSCAFFOLDS - 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. | 10-16-2014 |
20140324169 | MULTI-COMPONENT NON-BIODEGRADABLE IMPLANT, A METHOD OF MAKING AND A METHOD OF IMPLANTATION - 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. | 10-30-2014 |
20140336762 | METHOD AND SYSTEM FOR KNEE JOINT REPAIR - 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. | 11-13-2014 |
20140343675 | Balloon Implant Device - 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. | 11-20-2014 |
20140350678 | JOINT SUPPORT AND SUBCHONDRAL SUPPORT SYSTEM - 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. | 11-27-2014 |
20140350679 | PARTIAL JOINT RESURFACING IMPLANT, INSTRUMENTATION, AND METHOD - 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. | 11-27-2014 |
20140358231 | Methods of Implanting Transcutaneous Joint Unloading Devices - 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. | 12-04-2014 |
20150127104 | IN-SITU FORMATION OF A JOINT REPLACEMENT PROSTHESIS - 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. | 05-07-2015 |
20150320563 | Mobile Prosthesis for Interpositional Location Between Bone Joint Articular Surfaces and Method of Use - A biocompatible prosthetic device comprising a thin low friction spacer for location to overlie a bone member in an interpositional location between opposed bone joint articular surfaces. The prosthesis is preferably a thin spacer with at least one low friction surface, the spacer being adapted for location about a bone member in an interpositional location between opposed bone joint articular surfaces preferably about a margin of articular cartilage of a bone member's condyle, preferably without any modification of the articular surface of the condyle. One preferred use of a prosthesis is in a human temporomandibular joint as a thin cap-like member fitted closely over the mandibular condyle to be disposed intermediate of the mandibular condyle and the mandibular fossa of the temporomandibular joint. | 11-12-2015 |
20150351914 | TUMID IMPLANT AND PUMP - 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. | 12-10-2015 |
20150374501 | METHOD AND IMPLANT FOR REPLACING DAMAGED MENISCAL TISSUE - 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. | 12-31-2015 |
20160081807 | ARTICULAR CARTILAGE REPAIR - A scaffold is provided which facilitates integration of both bone and cartilage at an osteochondral lesion, thereby acting as a tissue engineered interface or tissue engineered junction between the two different tissues. The method and systems for engineering this interface may be acellular or may be loaded with cells prior to use. | 03-24-2016 |
20160106444 | System for Articular Surface Replacement - A system for replacing a portion of an articular surface including providing an implant site and installing an implant into the implant site. The implant site includes a first and a second excision site which at least partially intersect with one another. Each of the first and second excision sites are formed by providing a respective axis and excising a portion of the articular surface relative to the respective axes. | 04-21-2016 |
20160135956 | MENISCUS FOR JOINT RECONSTRUCTION - The invention provides treatment methods of using meniscus to repair injured and/or arthritic joints, for example, small hand joints including but not limited to radiocarpal, metacarpophalangeal, and interphalangeal joints. The invention also provides various implants made of meniscus for injured and/or arthritic joints. | 05-19-2016 |
20160143741 | JOINT BIOSCAFFOLDS - 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. | 05-26-2016 |
20160166389 | Implant and Implant System | 06-16-2016 |