СРАЩИВАЮЩЕЕ УСТРОЙСТВО И НАБОР ИНСТРУМЕНТОВ ДЛЯ СРАЩЕНИЯ СУСТАВОВ ЧЕЛОВЕКА ИЛИ ЖИВОТНОГО

Группа изобретений относится к медицине. Сращивающее устройство для сращения сустава человека или животного содержит по меньшей мере одну анкерную часть и по меньшей мере одну опорную часть и дополнительно содержит две стержнеобразные анкерные части и одну опорную часть. По общей своей глубине (D), измеряемой от проксимальной поверхности до дистального конца сращивающего устройства, сращивающее устройство ориентировано параллельно направлению (I) имплантации, при этом по общей ширине (W) и профилю толщины (Т1 и T2) сращивающее устройство ориентировано перпендикулярно направлению (I) имплантации. Анкерная часть и опорная часть размещены с чередованием или выполнены с возможностью чередования на протяжении ширины (W), причем толщина (Т1) указанной по меньшей мере одной анкерной части больше толщины (T2) указанной по меньшей мере одной опорной части. Указанная по меньшей мере одна анкерная часть содержит разжижаемый материал, при этом разжижаемый материал представляет собой термопластичный ...

МЕЖПОЗВОНКОВАЯ ВСТАВКА И СЦЕПЛЕННАЯ С НЕЙ ПЛАСТИНА В СБОРЕ

Группа изобретений относится к медицине. Имплантат для вставки в межпозвоночное пространство между телами позвонков, расположенных выше и ниже данного межпозвоночного пространства по первому варианту, содержит первый и второй элементы фиксации костей, вставку, сцепленную с вставкой пластину и первую и вторую подпружиненные защелки, препятствующие обратному выдвижению первого и второго элементов фиксации костей. Вставка включает в себя верхнюю поверхность для контакта с телом верхнего позвонка, нижнюю поверхность для контакта с телом нижнего позвонка, первую боковую поверхность, вторую боковую поверхность, переднюю поверхность и заднюю поверхность. Пластина включает в себя верхнюю поверхность, нижнюю поверхность, первую боковую поверхность, вторую боковую поверхность, переднюю поверхность и заднюю поверхность, а также первое и второе отверстия для фиксации костей и первое и второе гнезда. Первое и второе отверстия для фиксации костей имеют размер, подходящий для размещения первого и второго ...

Röntgenmarker für eine Endoprothese

Die vorliegende Erfindung betrifft einen Röntgenmarker für eine Endoprothese. Ferner betrifft die Erfindung eine Endoprothese mit einem metallischen Grundkörper und mit einem an dem Grundkörper befestigten Röntgenmarker. Der Röntgenmarker umfasst einen Hohlzylinder aus einem ersten radiopaken Metall und ein mit dem Hohlzylinder fest verbundenes Markerelement, das im Innern des Hohlzylinders angeordnet ist und aus einem zweiten radiopaken Metall besteht.

WIRBELSÄULENIMPLANTAT

VERSTÄRKTE PORÖSE WIRBELSÄULENIMPLANTATE

Porous implant material

Titanium composite having a coil-shaped skeletal surface structure for use as electrode biocompatible implant and catalyst support

A titanium composite having a coil-shaped skeletal structure on the surface, comprising a titanium or titanium alloy substrate and one or more layers of a coil-shaped skeletal titanium or titanium alloy structure that is firmly attached to the surface of said substrate and a process for producing a titanium composite having a coil-shaped skeletal structure on a surface of a titanium or titanium alloy substrate, which comprises: providing a coating composition which is a mixture of a titanium or titanium alloy powder with a binder; applying said composition in such a manner that titanium or titanium alloy coils which are to form the coil-shaped skeletal structure are firmly attached to both themselves and to the titanium or titanium alloy substrate; the heating the assembly either in vacuo or in an inert atmosphere so that the titanium or titanium alloy powder in the applied coating composition is sintered to have the coil-shaped skeletal titanium or titanium alloy structure attached firmly ...

SPINAL COLUMN FUSION IMPLANT

IMPLANT AS SURFACE REPLACEMENT FOR FACET JOINTS IN THE NECK SPINAL COLUMN

MOVEMENT-PHYSIOLOGICAL VOLUME DISK ENDOPROSTHESIS FOR THE LENDENUND NECK SPINAL COLUMN

FLEXIBLE HIP JOINT PAN AND PROCEDURE FOR THE PRODUCTION OF SUCH

SYSTEMS FOR THE SPINAL COLUMN SURGERY

CONNECTED ONE, ADJUSTABLE ONE AND PLUG TOGETHER-CASH SWIVELLING COMPONENTS

PROCEDURE FOR MAKING AN IMPLANT OF METALLIC POWDER WITH AUFGERAUTEN SURFACES

ELECTROSTATIC SPRAYING COATING (EDS) OF BIOCOMPATIBLE COATINGS ON METALLIC SUBSTRATES

BONE IMPLANT AND PROCEDURE FOR ITS PRODUCTION

NUCLEUSERSATZPROTHESE FOR THE SURGICAL RECONSTRUCTION OF THE VOLUME DISK AS WELL AS WORKING METHOD

ORTHOPEDIC PROSTHESIS WITH COMPOUND COATING

IMPLANT DEVICE FOR REPLACING THE KARPOMETAKARPALGELENKES HUMAN THUMB

IMPLANTS WITH HYDRIDIERTEN SURFACES FOR INCREASED BIO COMPATIBILITY AS WELL AS THEIR MANUFACTURING PROCESSES

FACETTENARTHROPLASTIEGERÄTE

WITH METAL HYDRIDES AND BIO MOLECULES COATED MEDICAL PROSTHESES AND IMPLANTS WITH IMPROVED BIOCOMPATIBILITY

LASER-PRODUCED POROUS SURFACE

INTERMEDIATE EDDY FUSING MECHANISM

Lateral insertion spinal implant

The present disclosure relates to a spinal implant (100C). The spinal implant may be used for lateral insertion into an intervertebral disc space. For example, the spinal implant may include a spacer body (102) to which a plate (106) is fixed. The intervertebral spacer body may include a pair of opposite sides (104) having a pyramid-shaped teeth (118) to fuse to bone. The plate defines at least one upper and lower borehole (11OF1, 110F2) that each receives a screw (108). Each screw attaches the plate to a vertebral body between which the intervertebral spacer body is inserted. The boreholes may include locking threads (112) that are adapted to lock the screws into place by engaging complementary locking threads of head of the screw. 161 E 112 160E 02 116 110E2 112 118 118 10410FG1124 04 108 -12 OF0B FIG. 19A -1 161 E »»M ~m 104 202 115 14116 18 FIG. 19B 204 104 DU 161 E DL 124 106E - ~102 100C 204 FIG. 19C 18 0 - -161 F D ---- 116 11OF1 1 104 106F ll0OF2 FIG. 20 108 ...

Joint arthroplasty devices formed in situ

Physiological intervertebral disk endoprosthesis for the lumbar column and cervical vertebral column

Interbody spinal fusion implants

Deposition of discrete nanoparticles on an implant surface

A method of forming an implant to be implanted into living bone is disclosed. The method comprises the act of roughening at least a portion of the implant surface to produce a roughened surface. The method further comprises the act of depositing discrete nanoparticles on the roughened surface though a one-step process of exposing the roughened surface to a solution. The nanoparticles comprise a material having a property that promotes osseointegration.

Ceramic metal composite for orthopaedic implants

Prosthesis for interpositional location between bone joint articular surfaces and method of use

Method and apparatus for total hip replacement

Method of manufacturing metal with biocidal properties

Metal objects are treated by anodising the metal object in contact with an acidic solution, and then subjecting the anodised metal object to a reversed voltage (compared to the anodising voltage). The thus- treated metal object is then contacted with a biocidal metal-containing solution. Biocidal metal is deposited on the surface of the metal object, resulting in improved biocidal properties.

Method of doping surfaces

Disclosed herein are methods of treating an article surface. The method comprises removing a metal oxide surface from the metal substrate to expose a metal surface; and delivering particles comprising a dopant from at least one fluid jet to the metal surface to impregnate the surface of the article with the dopant. The method also comprises delivering substantially simultaneously a first set of particles comprising a dopant and a second set of particles comprising an abrasive from at least one fluid jet to a surface of an article to impregnate the surface of the article with the dopant.

Disc implant

Implants with roughened surfaces made of metal powder

Provided are methods for processing a green body that includes compacted metal powder, comprising impacting the green body with a particulate material for a time and under conditions effective to displace a portion of the metal powder from the green body. The present methods can be used to prepare green bodies that have "roughened" surfaces and that can be used to make orthopedic implants displaying low movement relative to bone when installed in situ, which corresponds to higher stability upon implantation and decreases the time required for biological fixation of the implant. Also provided are implants comprising a metallic matrix, and methods comprising surgically installing an implant prepared from a "surface roughened" green body in accordance with the present invention.

Porous structure for bone implants

The invention relates to a bone implant comprising a body having a porous structure (3) and having a size and shape configured for fitment to a bone, preferably in a bone defect. The porous structure (3) is comprised of regularly arranged elementary cells (4) whose interior spaces form interconnected pores, the elementary cells (4) are formed by basic elements arranged in layers, wherein the basic elements are shaped like tetrapods (5, 5'), the tetrapods (5) in each layer being arranged in parallel orientation and being positioned in-layer rotated with respect to tetrapods (5') of an adjacent layer. The layers with rotated and non-rotated tetrapods are alternatingly arranged. Thereby a porous structure can be achieved which features improved mechanical characteristics, leading to improved biocompatibility. The invention further relates to endoprosthetic implants using said porous structure, and a method of such bone implants.

Stemless shoulder implant

The present disclosure provides a shoulder prosthesis (100). The shoulder prosthesis includes a glenoid component (104), a humeral component (102), and an articulation component (106). The glenoid component includes a glenoid body having a proximal side and a distal side, the distal side shaped to engage with a resected portion of a glenoid cavity. The humeral component includes a humeral body having a proximal side and a distal side, the distal side shaped to engage with a resected portion of a humerus. The articulation component is positionable between the proximal side of the glenoid component and the proximal side of the humeral component, the articulation component configured to be maintained between the glenoid and humeral components, after implantation, by at least one of a deltoid muscle and a rotator cuff.

Designed degradable cage coated with mineral layers for spinal interbody fusion

Sintered coatings for implantable prostheses

Facet arthroplasty devices and methods

Bone augmentation for prosthetic implants and the like

RADIOVISIBLE HYDROGEL INTERVERTEBRAL DISC NUCLEUS

A spinal implant for replacing the natural nucleus of the disc made from a polymer such as hydrogel having a radiopaque material located within the polymer. The material may be in the form of a powder disbursed throughout the polymer or may be in he form of a powder disbursed in layers or in other specific locations within the polymer. The radiopaque material is metal such as gold, tungsten, titanium, tantalum or platinum. The metal may also be in the form of a foil or wire located within the hydrogel such as polyurethane, thereby making the implant visible on x- rays. Other polymers besides hydrogel may be used with the radiopaque material being disbursed therein.

RADIOVISIBLE HYDROGEL INTERVERTEBRAL DISC NUCLEUS

A spinal implant for replacing the natural nucleus of the disc made from a polymer such as hydrogel having a radiopaque material located within the polymer. The material may be in the form of a powder disbursed throughout the polymer or may be in he form of a powder disbursed in layers or in other specific locations within the polymer. The radiopaque material is metal such as gold, tungsten, titanium, tantalum or platinum. The metal may also be in the form of a foil or wire located within the hydrogel such as polyurethane, thereby making the implant visible on x- rays. Other polymers besides hydrogel may be used with the radiopaque material being disbursed therein.

ARCUATE FIXATION MEMBER

Arcuate bone fixation members (12A, 12B, 12C) with a tip configured to cut into bone are particularly suitable when a linear line-of -approach for delivering fixation members is undesirable. The members may be configured to engage a driving instrument, have a proximal tab (44) with an aperture (48) to receive a bone anchor (50), be received in a curved guiding bore (28) of a guiding member (14) configured to be anchored in a vertebral body, be forced by an actuator through an instrument comprising a cannulated guide shaft (68) and within it a shaft (74) which has an engagement feature (80a) complementary to an engagement feature on the fixation member such as a thread, or fix an intervertebral implant (108) fixation plate (116).

INTERBODY FUSION DEVICE

An interbody spacer (20) includes concave lateral surfaces (30,36) extending at an angle (A1) with respect to the longitudinal axis (L1). In one aspect, the interbody spacer includes upper and lower convex surfaces (22,24) defined by an arc extending from a center point offset from the spacer midpoint (M). In another aspect, lateral edges (21,23) of the upper and lower surfaces are also defined by convex arcs extending from a center point offset from the spacer midpoint.

UNIVERSAL INTERFERENCE CLEAT FOR VERTEBRAL PROSTHESIS

A vertebral implant comprises a tubular body (22) sized to fit between two vertebral endplates and a pair of ring-shaped cleat assemblies (24, 26). Each cleat assembly comprises an outer end wall (40), an inner end wall (42), and a side wall (34, 36) which defines a hollow bore (38). One or more spikes (44) extend from each outer end wall, and each hollow bore is sized to fit over an end of the tubular body and slidably pass from the end along at least a portion of the length of the tubular body.

PHYSIOLOGICAL INTERVERTEBRAL DISK ENDOPROSTHESIS FOR THE LUMBAR COLUMN AND CERVICAL VERTEBRAL COLUMN

BIOACTIVE SURFACE LAYER, PARTICULARLY FOR MEDICAL IMPLANTS AND PROSTHESES

The bioactive surface layer is particularly suited for medical implants and prostheses. A variable portion of the 0.1 to 50.0 .mu.m thick, porous surface layer is comprised of calcium phosphate phases. The surface layer contains amorphous or nanocrystalline calcium phosphates and the pore density on the surface of the surface layer ranges from 104 to 108 pores/mm2. The ratio of Ca/P over the entire surface layer ranges from 0.5 to 2.0. The surface layer has a high solubility so that it can act as a contributor of calcium phosphate for the formation of bone.

NESTED INTERBODY SPINAL FUSION IMPLANTS

Tapered root threaded hollow perforated interbody spinal fusion implants (100, 200) are disclosed for placement into a disc space in a human spine between adjacent vertebral bodies. The implants have opposite arcuate portions (134, 134', 234, 234') with lockable screws (500) passing therethrough for engaging each of the adjacent vertebral bodies. The implants are adapted for use in side-by-side pairs such that a portion of the circumference of a first implant nests within the circumference of a second implant, so as to have a reduced combined width.

A METHOD OF SIMULTANEOUSLY ABRASIVELY BLASTING AND DOPING SURFACES

Disclosed herein are methods of treating an article surface. The method comprises removing a metal oxide surface from the metal substrate to expose a metal surface; and delivering particles comprising a dopant from at least one fluid jet to the metal surface to impregnate the surface of the article with the dopant. The method also comprises delivering substantially simultaneously a first set of particles comprising a dopant and a second set of particles comprising an abrasive from at least one fluid jet to a surface of an article to impregnate the surface of the article with the dopant.

METHOD AND APPARATUS FOR TOTAL HIP REPLACEMENT

Methods and apparatus of the present invention provide for orthopaedic total replacement of the hip while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation following the procedure. In an exemplary embodiment, the acetabulum is prepared and fitted with a prosthetic acetabular cup 702 and a prosthetic femoral head 1102 is fitted into the prosthetic acetabular cup 702. An intramedullary rod 1502 is inserted longitudinally into the femur. A prosthetic femoral neck 3102 is then inserted from a point along the side of the patient's body and into the side of the femur and through a pre-existing lateral bore in the intramedullary rod 1502 and through the remainder of the femur to join the prosthetic femoral head 1102. The methods and apparatus include structures and techniques for fixing the prosthetic femoral neck 3102 in relation to the intramedullary rod 1502.

DISC IMPLANT

A problem with total disc implant surgery appears to be the positioning of the implant which if not correct may lead to pain and eventually new surgery. The present invention relates to an improved disc implant (1) for total disc replacement, comprising two inter- vertebral elements (2) which are flexibly connected via coupling means (4,5). Following surgery, the relative movability of said two inter- vertebral elements is decreased overtime, as bone ingrowth occurring around the implant and specifically through osseointegrative sections gradually degrease the movability of the elements relative to each other. Following, the relative movability of the implant elements is replaced by fixation of the elements. The fixation has flowingly occurred in a position affected by the movement of the patient, and is thereby more acceptable to the patient.

METHOD FOR FUSING A HUMAN OR ANIMAL JOINT AS WELL AS FUSION DEVICE AND TOOL SET FOR CARRYING OUT THE METHOD

A fusion set is provided for fusing a synovial joint of a human or animal patient, wherein the joint has a joint gap between two articular surfaces. The fusion set has a stabilization part shaped to be positioned relative to the joint gap, and a plurality of separate anchorage parts. The anchorage parts include a thermoplastic liquefiable material and have at least one opening for each one of the plurality of anchorage parts, the at least one opening being a through opening or a groove extending along the stabilization part. The anchorage parts are shaped to be pushed into a respective opening of the stabilization part, and are capable of being pushed through the through openings or past the stabilization part along the grooves and anchored in the bone tissue beside and/or beyond the stabilization part by liquefied and re-solidified portions of the thermoplastic liquefiable material penetrating into bone tissue adjacent the articular surfaces.

MEDICAL IMPLANTS AND METHODS FOR DELIVERING BIOLOGICALLY ACTIVE AGENTS

Medical implants, such as orthopedic implants of the type used in partial or total joint replacement procedures, for example. The implants include a porous substrate, and a bearing portion of a polymeric material, for example, which is at least partially molded within the porous substrate. The bearing portion includes a bearing surface that is exposed to an articulating component of another medical implant, and the porous metal substrate contacts the bone for osseointegration of the bone tissue into the porous substrate to anchor the implant. The porous substrate may include biodegradable carrier materials, in the form of one or more layers, that carry biologically active agents such as antibiotics and bone growth factors, for example. The layers of biodegradable carrier materials may be tailored such that, after implantation of the implants, the biologically active agents are released sequentially and/or over time into the surrounding tissue to reduce the chances of infection and/or to ...

METHOD FOR PRODUCING UNDERCUT SURFACE RECESSES

Method for producing a multiplicity of undercut micro recesses in a surface (12) of an article (10), such that the article exhibits a greater fractal area at a level below the surface than is exhibited at the surface (12). The method comprises applying a maskant layer to a selected surface of the article (10), removing the maskant layer in selected loci to expose underlying portions of the article surface in a selected pattern, applying an etchant to the exposed underlying surface portions for a time sufficient to etch the exposed portions of the article (10) and to enable the etchant to etch beneath portions of the remaining maskant layer, and removing the remaining maskant layer to provide the surface in exposed condition with the multiplicity of undercut recesses, to provide an engineered pattern of the recesses.

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.

STENT AND STENT DELIVERY DEVICE

In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.

LONGITUDINALLY ELONGATING BALLOON EXPANDABLE STENT

A cylindrical stent (10) for placement in a vessel of a human body. The stent has a longitudinal axis and in its formation includes circumferential arcs (12) and diagonal struts (14) having an intersection angle between the circumferential arcs (12) and the diagonal struts (14) within the range of 10 to 80 degrees when the stent (10) is in its non-deployed state. The diagonal struts (14) are joined by curved sections (18) to the circumferential arcs (12) which collectively form a closed perimeter cell. The closed perimeter cell has two parallel, circumferential arcs (12) located at the longitudinal extremeties of the closed perimeter cell and the circumferential arcs (12) lie generally perpendicular to the stent's longitudinal axis where the stent (10) may be deployed in a manner so that although the length of the stent (10) increases during deployment, at the nominal fully deployed diameter, the deployed stent (10) is substantially the same length as the non-deployed length.

BONE SUBSTITUTE MATERIALS

A strong, porous article useful as a bone substitute material and having an outer surface defining a shape having a bulk volume and having open interconnecting interstices extending throughout said volume and opening through said surface. The article comprises a continuous strong framework structure having interstices which interconnect throughout the bulk volume and a second continuous material occupying at least a portion of the same bulk volume as the framework structure. The second material comprises an osteoinductive and/or osteoconductive composition. This composition may be present in one of several forms. One of these is as a coating on the surface of the framework structure. A second form is in the form of a composite, intimately mixed with the framework material within the framework struts. The third form is as a porous mass within the interstices of the framework structure, having pores which are interconnecting with themselves, and with the interstices of the framework structure ...

[...][...][...][...][...][...][...].

BONDING MATERIAL FOR PROSTHESES.

CEMENT-FREELY IN THE BASIN TO EMBODYING HIP JOINT PAN.

Cage having a tip.

La présente invention se rapporte à une cage (1) qui est insérée entre des corps vertébraux dune vertèbre cervicale ou colonne vertébrale pendant une opération pour le traitement dune maladie de disque cervical, de la myélose, ou dune fracture de la vertèbre cervicale ou de la colonne vertébrale, et plus particulièrement, à une cage avec des pointes, comprenant des pointes supérieure (20) et inférieure qui sont attachées à un clip (50) inséré dans un corps principal (10) de la cage, déployées vers le haut et vers le bas depuis le corps principal (10), et verrouillées aux corps vertébraux dune vertèbre cervicale ou colonne vertébrale positionnée en dessus et en dessous de la cage (10) de telle manière que la cage (10) est fixée et verrouillée entre les corps vertébraux. Linvention concerne également un mécanisme dinsertion pour linsertion de la cage (1) dans le corps principale (10).

Intervertebral fusion cage.

La présente invention se rapporte à une cage (1) qui est insérée entre des corps vertébraux d’une vertèbre cervicale ou colonne vertébrale pendant une opération pour le traitement d’une maladie de disque cervical, de la myélose, ou d’une fracture de la vertèbre cervicale ou de la colonne vertébrale, et plus particulièrement, à une cage avec des ancres, comprenant des ancres supérieure (20) et inférieure (30) qui sont attachées à un clip (50) inséré dans un corps principal (10) de la cage, déployées vers le haut et vers le bas depuis le corps principal (10), et verrouillées aux corps vertébraux d’une vertèbre cervicale ou colonne vertébrale positionnée en dessus et en dessous de la cage (1) de telle manière que la cage (1) est fixée et verrouillée entre les corps vertébraux. L’invention concerne également un outil pour l’insertion du clip (50) dans le corps principal (10).

FLEXIBLE PROSTHESIS HOLLOW SHANK AND PROCEDURE FOR ITS PRODUCTION.

Ball joint prosthesis.

Customized porous tantalum tibial cushion block

Spinal implants

METHOD OF FIXING A POROUS LAYER ON A SUBSTRATE AND APPLICATION TO OF A PROSTHETIC

MATIERE COMPOSITE POUR PROTHESES

La présente invention a pour objet une matière composite se composant d'une couche poreuse de fils métalliques, placée sur un substrant métallique. Elle est caractérisée en ce que la couche poreuse se compose d'au moins une couche de treillis 2 en fils métalliques dans laquelle les fils 3, 4 sont fixés les uns avec les autres et avec le substrat 1 par des liaisons métalliques établies aux points de contact, et en ce que les fils métalliques du treillis sont constitués d'acier inoxydable, de titane, d'alliages de titane, d'alliages de cobalt, de tantale, d'alliages de tantale, de niobium, d'alliages de niobium, ou de zirconium, le treillis comportant de 400 à 6 fils, d'un diamètre compris entre 0,025 et 1,25 mm, par unité de longueur de 2,54 cm dans chaque direction. Elle se rapporte aux prothèses osseuses, notamment aux prothèses dentaires. (CF DESSIN DANS BOPI) ...

PROCESS OF FIXING Of a POROUS LAYER ON a SUBSTRATE AND APPLICATION OF THIS PROCESS TO the REALIZATION Of a PROSTHESIS

Interbody fusion device

MINIMALLY INVASIVE SPINE RESTORATION SYSTEMS, DEVICES, METHODS AND KITS

The invention discloses methods and devices for repairing, replacing and/or augmenting natural facet joint surfaces and/or facet capsules. A facet joint restoration device (410) of the invention for use in a restoring a facet joint surface comprises: a cephalad facet joint element comprising a flexible member (422) adapted to engage a first vertebrae and an artificial cephalad joint (426) ; and a caudad facet joint element comprising a connector adapted for fixation to a second vertebrae and an artificial caudad joint (428) adapted to engage the cephalad facet joint. In another embodiment, the invention discloses a facet joint replacement device for use in replacing all or a portion of a natural facet joint between a first vertebrae and a second vertebrae.

BONE AND TISSUE SCAFFOLDING AND METHOD FOR PRODUCING SAME

The present invention provides a bone in-growth and on-growth material and method for making a material by bonding porous sheets together. The porosity is controllable from zero porosity to essentially a fully porous material.

METHOD AND APPARATUS FOR HIP REPLACEMENT

Methods and apparatus for orthopedic replacement of the hip through three incisions with a modular prosthetic system assembled in vivo while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation. A prosthetic femoral stem is inserted into the femur. A prosthetic femoral neck is inserted from a point along the side of the patient's body and into the side of the femur and through a lateral bore in the prosthetic femoral stem to join the prosthetic femoral head. The methods and apparatus include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly.

EXPANDABLE ANTERIOR LUMBAR INTERBODY FUSION DEVICE

An expandable anterior lumbar interbody fusion device comprises a deformable monolithic body having posterior and anterior ends, an upper bone contact structure and a lower bone contact structure. The body is expandable along a height axis between a first smaller height to a second larger height. The body comprises a pair of opposed side structures, each including a translatable center section being movable in a direction transverse to the height axis, a first locator arm adjacent the posterior end, a second locator arm adjacent the anterior end and a pair of formable load-bearing columns supported by the upper bone contact structure, the lower bone contact structure and the center section. The columns are not formed at the first height but are operative upon expansion of the body to the second height to form load-bearing columns along the height axis between the upper and lower bone contact structures. 1. An expandable anterior lumbar interbody fusion device , comprising:a deformable monolithic body having a posterior end and an anterior end, an upper bone contact structure having an upper opening therethrough, a lower bone contact structure having a lower opening therethrough, a pair of spaced apart side structures joining said upper bone contact structure and said lower bone contact structure, each of said side structures having an opening therethrough and defining with said upper bone contact structure and said lower bone contact structure an open interior of said body, said upper opening, said lower opening and said openings through said side structures for communicating with said interior, said body being expandable along a height axis between the first smaller height to a second larger expanded height, each of said side structures including:a translatable center section between said upper bone contact structure and said lower bone contact structure, said center section having a first end and an opposite second end, said center section being movable in a ...

Vividly simulated prosthetic intervertebral disc

A prosthetic intervertebral disc includes an upper fusion member gradually fused and secured to an upper vertebra, a lower fusion member gradually fused and secured to a lower vertebra, and a restorable cushioning coupler retained in between the upper and lower fusion members, whereby upon bending or twisting of a patient's spine, the upper and the lower fusion members may be flexibly moved with each other for enhancing a free movement of the patient's spine and body, as safely resiliently cushioned and easily restored by the cushioning coupler in between the upper and lower fusion members.

Bearings, races and components thereof having diamond and other superhard surfaces

Diamond bearings and bearing components are disclosed. Some embodiments of the bearings and bearing components include polycrystalline diamond compacts sintered under high pressure and high temperature to create a diamond table chemically and mechanically bonded to a substrate, the diamond table presenting a durable and thermally stable load bearing and articulation surface.

Expandable vertebral implant

An expandable implant for engagement between vertebrae includes an inner member, an outer member, and a gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The inner member includes a longitudinal groove configured to engage a pin extending through the outer member such that the pin prevents the inner member from translating completely through the outer member and aids in alignment and limits rotation of the second endplate. Portions of the implant may be provided with a series of markings such that when the markings are aligned, the implant is aligned in a specific configuration and for a specific implantation approach.

Linked bilateral spinal facet implants and methods of use

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

Transforaminal hybrid implant

An implant configured for placement through a transforaminal surgical approach made of at least two different materials. The implant may include materials with varying radiolucency and mechanical properties. Such a hybrid implant may offer controlled radiographic visibility and optimized structural properties for implant placement, including placement for use in spinal arthrodesis.

Expandable Vertebral Implant

The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.

METHOD AND APPARATUS FOR ORTHOPEDIC IMPLANT

A tibial implant may include a plurality of implant subunits. The implant subunits may be configured for individual insertion within a wedge-shaped-void of the tibia. The implant subunits may further be configured for assembly in order to provide an implant substantially covering an exposed portion of cortical bone formed when performing a surgical osteotomy. Methods and kits for insertion and assembly of implants are further described.

SURGICAL IMPLANT

An implant to be inserted in the disk space between a lower vertebra and an upper vertebra. The implant comprises a body having a lower surface and an upper surface, and an aperture extending through the body in the direction of the height of the body from a lower side of the body to an upper side of the body. The body is arranged to reduce its height permanently under the load the body is exposed to between a lower vertebra and an upper vertebra.

Linked bilateral spinal facet implants and methods of use

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

GLENOID IMPLANT AND METHOD OF USE THEREOF

A glenoid implant that is 3D-printed or machined from ceramic and/or metal as a substitute for an autograft or allograft in a surgical repair. Structural supports composed of metal are designed in the interior of the implant for support during implantation and post-operation. The remainder of the volume of the implant is composed of a material having optimal pore structure for rapid bone integration and healing.

ANKLE REPLACEMENT SYSTEM

A prosthesis suited for orthopedic implantation possesses a multi-piece stem component that supports an artificial joint surface that can articulate with another artificial joint surface in various ways. The prosthesis can be assembled in a snap fit and/or interlocking fashion that provides positive locking means without the use of screws or other fasteners. The prosthesis can accommodate fitment of a plastic joint surface made, e.g., from ultra high molecular weight polyethylene. The prosthesis is well suited for use in an ankle replacement system that can be installed using minimally invasive intramedullary guidance established with respect to the major axis of the tibia by minimally invasive access through the calcaneus, through an incision in the bottom of the foot. The prosthesis makes possible the installation of a total ankle system using minimally invasive anterior access to the ankle joint for making bony cuts and to install prosthesis components.

In-situ oxidized textured surfaces for prosthetic devices and method of making same

A textured surface and oxidation layer coating on a metallic material is accomplished through the chemical and/or electrochemical etching of the surface to modify the surface texture and an in-situ oxidation procedure. The surface is useful for the fabrication of prosthetic devices, particularly medical implants, due to the corrosion and wear resistance imparted by the oxidation layer and the ability to enhance grafting of the implant onto bone imparted by the surface texture.

Porous Bone Fixation Device

A porous bone fixation device has a body including non-porous areas that provide superior long term fixation and osteointegration performance. The porous areas provide an in-growth surface in strategic sections such as the threaded section of the fixation device that allow substantially more contact area between in-growth surface and bone. The in-growth material is a network of interconnected porosity in a matrix of bio compatible, preferably titanium. Examples of bone fixation devices include bone screws, bone anchors, dental implants, and similar devices used to provide a fixation point in bone.

TEXTURED SURFACE HAVING UNDERCUT MICRO RECESSES IN A SURFACE

Textured surface (12) having micro recesses (20) such that the outer surface overhangs the micro recesses. Embodiments of the textured surface include sharp edges for promoting bone deposition and growth within the micro recesses, protrusions of varying depth from the surface that include overhangs, and micro recesses that are at least partially defined by complex ellipsoids.

Laser-produced porous surface

FACET JOINT PROSTHESES

SYSTEMS FOR SPINAL SURGERY

ПРОТЕЗ СПИННОГО ДИСКА

... 1. Протез межпозвонкового диска для полной замены межпозвонкового диска шейного или поясничного отдела позвоночника, в состав которого входит:верхняя пластина скольжения (2) с выступающей вверх анкерной конструкцией (3) на своей верхней поверхности для ее фиксации по отношению к верхнему позвонку и с вогнутым образованием (8) на ее нижней внутренней поверхности (16), окруженной кромкой (14);нижняя пластина скольжения (1) с выступающей вниз анкерной конструкцией (3) на своей нижней поверхности для ее фиксации по отношению к нижнему позвонку и с плоской верхней внутренней поверхностью, окружающей направляющую канавку (7) с фланговыми поверхностями (6), идущую спереди назад с первым упором (21) сзади и со вторым упором (22) спереди, а такжепромежуточная пластина скольжения (13) между верхней (2) и нижней пластинами скольжения (1) с выпуклым образованием (4) на своей верхней поверхности (15), контактирующим с вогнутым образованием (8) на внутренней поверхности (16) верхней пластины скольжения ...

ИМПЛАНТАТ И СПОСОБ ОБРАБОТКИ ПОВЕРХНОСТИ ИМПЛАНТАТА

... 1. Способ обработки поверхности имплантата, предназначенного для имплантации в костную ткань, отличающийся тем, что в нем обеспечивают микрошероховатость, включающую поры и пики, имеющие диаметр пор 1 мкм, глубину пор 500 нм и ширину пика на уровне половины глубины пор от 15 до 150% диаметра пор. 2. Способ по п.1, в котором диаметр пор находится в пределах диапазона от 50 нм до 1 мкм, а глубина пор находится в пределах диапазона от 50 до 500 нм. 3. Способ по п.1, в котором обеспечена среднеквадратическая шероховатость (Rq и/или Sq) 250 нм. 4. Способ по любому из пп.1-3, в котором поверхность имплантата представляет собой поверхность металлического имплантата. 5. Способ по п.4, в котором микрошероховатость обеспечивают обработкой поверхности металлического имплантата водным раствором фтористоводородной кислоты. 6. Способ по п.5, в котором концентрация фтористоводородной кислоты составляет менее чем 0,5 М. 7. Способ по п.6, в котором поверхность металлического имплантата обрабатывают в течение ...

NTEGRATIONSEIGENSCHAFTEN

Innerhalb eines Körperlumens anbringbarer Stent

Method for fusing a human or animal joint as well as fusion device and tool set for carrying out the method

The fusion device for fusing a synovial joint of a human or animal patient, in particular a human facet joint, finger joint or toe joint, includes two pin-shaped anchorage portions ( 1 ) and arranged therebetween a stabilization portion ( 2 ). The anchorage portions ( 1 ) include a thermoplastic material which is liquefiable by mechanical vibration. The stabilization portion ( 2 ) preferably has a surface which is equipped for enhancing osseointegration. The anchorage portions ( 1 ) have a greater thickness (T 1 ) and a greater depth (D) than the stabilization portion ( 2 ). Then the fusion device is pushed between the articular surfaces and mechanical vibration, in particular ultrasonic vibration, is applied to the proximal face ( 4 ) of the fusion device. Thereby the liquefiable material is liquefied where in contact with the bone tissue and penetrates into the bone tissue, where after re-solidification it constitutes a positive fit connection between the fusion device and the bone tissue.

Osteoarthritis treatment and device

A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container.

Osteoarthritis treatment and device

A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container.

Method of Making Porous Metal Articles

In one embodiment, the present invention may be a method of making a porous biocompatible metal article by combining a metal powder with a homogenizing aid to form metal granules, including blending the metal granules and an extractable particulate to form a composite, forming the composite into a green article, removing the extractable particulate from the green article to form a metal matrix and pore structure, and sintering the metal matrix and pore structure. Furthermore the present invention may include a second homogenizing aid combined with the extractable particulate. The present invention also includes shaping the metal matrix and pore structure with or without the use of a binder.

Prosthetic intervertebral disc with movable core

An intervertebral disc for a prosthetic intervertebral disc system for insertion from a posterior of the spine includes first and second end plates sized and shaped to fit within an intervertebral space, each end plate having a vertebral contacting surface and an inner surface, a first bearing surface on an inner surface of the first end plate, and a second bearing surface on an inner surface of the second end plate. A mobile core is configured to be received between the first and second bearing surfaces, the first and second end plates being articulable and rotatable relative to each other via sliding motion of at least one of the first and second bearing surfaces over the core. The core is movable with respect to at least one of the first and second end plates.

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.

Artificial intervertebral disc placement system

An intervertebral disc placement system includes a multi part intervertebral disc, such as a mobile core disc, and an associated placement instrument. The placement instrument holds the disc securely with the disc endplates angled for ease of placement of the disc into an intervertebral disc space and quickly releases the implant within the disc space. The disc includes upper and lower plates having notches in inner surfaces for engagement of the placement instrument. The placement instrument has a rotatable key configured to fit into the first and second notches to grasp the disc from the interior and eliminate the need for an external grasping mechanism which could interfere with disc placement.

Spinal Facet Implants with Mating Articulating Bearing Surface and Methods of Use

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

Subchondral treatment of joint pain of the spine

Methods for altering the natural history of degenerative disc disease and osteoarthritis of the spine are proposed. The methods focus on the prevention, or delayed onset or progression of, subchondral defects such as bone marrow edema or bone marrow lesion, and subchondral treatment to prevent the progression of osteoarthritis or degenerative disc disease in the spine and thereby treat pain.

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.

Interbody Cage for Spinal Fusion and Method of Implanting Interbody Cages into Spines

A spinal interbody fusion implant has an impact rod fitting that is configured and adapted to be connected to an impact rod during implantation of the implant. The implant also comprises one or more openings that are encircled by portions of the implant and that extend into the top of the implant and continue through to and out of the bottom of the implant. The top and bottom of the implant each have a load bearing footprint. Each of the load bearing footprints has a centroid that is closer to the leading end of the implant than to the trailing end of the implant. A method of implanting a spinal interbody fusion implant between two vertebrae of a spine comprises inserting the implant into a patient through a posterior incision and guiding the implant into a position between the two vertebrae using a pair of shims.

Artificial Hemi-Lumbar Interbody Spinal Fusion Cage Having an Asymmetrical Leading End

An artificial interbody spinal implant adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies is disclosed. The implant has an asymmetrical leading end adapted to sit upon the more peripheral areas, such as the apophyseal rim and the apophyseal rim area, of the vertebral end plate region of the vertebral bodies without protruding therefrom. The asymmetrical leading end allows for the sate use of an implant of maximum length for the implantation space into which it is installed. The implant can also include an asymmetric trailing end adapted to sit upon the more peripheral areas of the vertebral end plate region of the vertebral bodies.

Methods and Compositions for Articular Repair

Disclosed herein are methods and compositions for producing articular repair materials and for repairing an articular surface. In particular, methods for providing articular repair systems. Also provided are articular surface repair systems designed to replace a selected area cartilage, for example, and surgical tools for repairing articular surfaces.

Systems and methods for the fixation or fusion of bone

A stem-like bone fixation device allows for bony in-growth on its surface and across fracture fragments or between bones that are to be fused.

Support device and method of use

Devices and methods for orthopedic support are disclosed. The device can have a first rigid section hingedly attached to a second rigid section. The device can be curved or rotated around obstructions along an access path to a target site. The device can be delivered to an intervertebral location in a patient.

Porous implant material

A plurality of porous metal bodies which are bonded with each other at bonded-boundary surfaces parallel to a first direction, each of the porous metal bodies has a three-dimensional network structure formed from a continuous skeleton in which a plurality of pores are interconnected so as to have a porosity rate different from another porous metal body, the pores formed in at least the porous metal body having the higher porosity rate are formed to have flat shapes which are long along a direction parallel to the bonded-boundary surface and short along a direction orthogonal to the bonded-boundary surface, entire porosity rate of a bonded body of the porous metal bodies is 50% to 92%, a compressive strength compressing in the direction parallel to the bonded-boundary surface is 1.4 times to 5 times of a compressive strength compressing in the direction orthogonal to the bonded-boundary surface.

Apparatus, systems, and methods for achieving lumbar facet fusion

Assemblies of one or more implant structures make possible the achievement of diverse interventions involving the fusion and/or stabilization of lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. The representative lumbar spine interventions, which can be performed on adults or children, include, but are not limited to, lumbar interbody fusion; translaminar lumbar fusion; lumbar facet fusion; trans-iliac lumbar fusion; and the stabilization of a spondylolisthesis.

Vertebral body spacer

A vertebral body spacer of the present invention is used by being inserted between a vertebral body and a vertebral body (intervertebral space). The vertebral body spacer has a block body constituted of titanium or a titanium alloy as a main component thereof, and provided with a pair of contact surfaces to be made contact with the vertebral body and the vertebral body. The block body includes a frame-shaped dense part and a porous part provided inside the dense part, and a porosity of at least a surface of the porous part is larger than a porosity of the dense part. According to the present invention, it is possible to maintain an appropriate size between the vertebral bodies (intervertebral space).

Joint replacement implant

An implant for one of partial and total replacement of an articulating joint between a first bone and a second bone. The implant has a joint component implant including a body and a head, the body including a first region spaced from the head and a second region proximate the head, the head including a convex bearing surface. At least a portion of the first region has a textured surface, the textured surface constructed of a foam metal material that is configured to promote bone in-growth into the textured surface, the body constructed of a metallic material and configured for attaching to the first bone, the first region tapering from a proximal end adjacent the second region toward a distal end.

Tibial augments for use with knee joint prostheses, method of implanting the tibial augment, and associated tools

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described.

Minimally Invasive Spine Restoration Systems, Devices, Methods and Kits

The invention discloses methods, devices, systems and kits for repairing, replacing and/or augmenting natural facet joint surfaces and/or facet capsules. An implantable facet joint device of one embodiment comprises a cephalad facet joint element and a caudal facet joint element. The cephalad facet joint element includes a member adapted to engage a first vertebra, and an artificial cephalad bearing member. The caudal facet joint element includes a connector adapted for fixation to a second vertebra at a fixation point and an artificial caudal bearing member adapted to engage the cephalad bearing member. The artificial caudal bearing member is adapted for a location lateral to the fixation point. In another embodiment, an implantable facet joint device comprises a cephalad crossbar adapted to extend mediolaterally relative to a spine of a patient, the crossbar having opposite first and second ends, a connector element adapted to connect the crossbar to a first vertebra, a first artificial cephalad bearing member adapted for connection to the first end of the crossbar and adapted to engage a first caudal facet joint element connected to a second vertebra, and a second artificial cephalad bearing member adapted for connection to the second end of the crossbar and adapted to engage a second caudal facet joint element connected to the second vertebra.

Method and apparatus for hip replacement

Methods and apparatus for orthopedic replacement of the hip through three incisions with a modular prosthetic system assembled in vivo while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation. A prosthetic femoral stem is inserted into the femur. A prosthetic femoral neck is inserted from a point along the side of the patient's body and into the side of the femur and through a lateral bore in the prosthetic femoral stem to join the prosthetic femoral head. The methods and apparatus include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly.

Expandable support device and method of use

An expandable support device for tissue repair is disclosed. The device can be used to repair hard or soft tissue, such as bone or vertebral discs. A method of repairing tissue is also disclosed. The device and method can be used to treat compression fractures. The compression fractures can be in the spine. The device can be deployed by compressing the device longitudinally resulting in radial expansion.

INTERVERTEBRAL IMPLANT FOR QUADRUPEDS

A low profile intervertebral implant for implantation in an intervertebral disc space between adjacent vertebral bodies of a quadruped. The intervertebral implant includes a plate and a spacer that extends from the plate. The intervertebral implant can define geometries that nest with complementary geometries of the vertebral bodies. Further, the plate can include fixation holes that extend along trajectories such that screws inserted through the fixation holes and driven into the respective vertebral bodies can purchase with dense cortical bone. 1. An intervertebral implant configured to be implanted in an intervertebral disc space of a quadruped , the intervertebral disc space defined by a cranial vertebral body and a caudal vertebral body , the implant comprising:a plate defining a ventral plate end and a dorsal plate end spaced opposite the ventral plate end in a dorsal direction, and a plurality of fixation apertures that extend through the plate from the ventral plate end to the dorsal plate end; anda spacer that extends in the dorsal direction from the plate, wherein the spacer defines a caudal surface and a cranial surface opposite the caudal surface in a cranial direction, the caudal and cranial surfaces configured to grip the caudal and cranial vertebral bodies, respectively,wherein the cranial surface is convex in a first plane that is oriented along the oriented along the dorsal direction and the cranial direction, and the cranial surface is convex in a second plane that is oriented along the cranial direction and a lateral direction that is substantially perpendicular to each of the dorsal direction and the cranial direction, andwherein the caudal surface is substantially straight and liner in the first plane, and the caudal surface is convex in the second plane.2. The intervertebral implant as recited in claim 1 , wherein the cranial surface defines a first radius of curvature in the first plane claim 1 , and a second radius of curvature in the second ...

Method for fusing a human or animal joint as well as fusion device and tool set for carrying out the method

The fusion device for fusing a synovial joint of a human or animal patient, in particular a human facet joint, finger joint or toe joint, includes two pin-shaped anchorage portions and arranged therebetween a stabilization portion. The anchorage portions include a thermoplastic material which is liquefiable by mechanical vibration. The stabilization portion preferably has a surface which is equipped for enhancing osseointegration. The anchorage portions have a greater thickness and a greater depth than the stabilization portion. Then the fusion device is pushed between the articular surfaces and mechanical vibration, in particular ultrasonic vibration, is applied to the proximal face of the fusion device. Thereby the liquefiable material is liquefied where in contact with the bone tissue and penetrates into the bone tissue, where after re-solidification it constitutes a positive fit connection between the fusion device and the bone tissue.

FEMORAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESIS

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur. 113.-. (canceled)14. A femoral implant system implantable in a distal femur of a patient , the femoral implant system comprising:a femoral component that is implantable in the distal femur of the patient as part of a knee joint prosthesis, the femoral component comprising a stem component to facilitate securing the femoral component to the distal femur, a medial condyle, and a lateral condyle, the medial condyle and the lateral condyle each including a proximal side; and a proximal body portion through which the stem component can be received;', 'a lateral leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the lateral condyle when the femoral component and the femoral augment are implanted in the distal femur;', 'a medial leg that extends distally from the proximal body portion to be seated proximally of the proximal side of the medial condyle when the femoral component and the femoral augment are implanted in the distal femur; and', 'a web portion,', 'wherein the lateral leg, the medial ...

Acl accommodating tibial design

Surgical methods and tibial implants for accommodating the anterior cruciate ligament during unicompartmental or bi-unicompartmental knee arthroplasty procedures.

Linked Bilateral Spinal Facet Implants and Methods of Use

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra. 1. An implantable system comprising:a superior member attachable to a bone member via a first fixation member;an inferior member attachable to a bone member via a second fixation member, wherein the superior member and the inferior member are configured to articulate relative to one another; anda flexible link extending a length of the inferior member and configured to attach to opposing ends of the inferior member.2. The system of claim 1 , wherein the inferior member comprises a ball-and-socket joint.3. The system of claim 1 , wherein the first fixation member comprises an oval shaped cross-section that is wider in a first direction than in a second direction.4. The system of claim 1 , wherein the first fixation member comprises a square cross-section design with four substantially perpendicular sides.5. The system of claim 1 , wherein the first fixation member comprises a triangular cross-section with three sides.6. The system of claim 1 , wherein the superior member comprises a bone ingrowth surface.7. The system of claim 6 , wherein the bone ingrowth surface comprises a porous ...

MINIMALLY INVASIVE SPINE RESTORATION SYSTEMS, DEVICES, METHODS AND KITS

The disclosure discloses methods, devices, systems and kits for repairing, replacing and/or augmenting natural facet joint surfaces and/or facet capsules. An implantable facet joint device of one embodiment comprises a cephalad facet joint element and a caudal facet joint element. The cephalad facet joint element includes a member adapted to engage a first vertebra, and an artificial cephalad bearing member. The caudal facet joint element includes a connector adapted for fixation to a second vertebra at a fixation point and an artificial caudal bearing member adapted to engage the cephalad bearing member. The artificial caudal bearing member is adapted for a location lateral to the fixation point. In another embodiment, an implantable facet joint device comprises a cephalad crossbar adapted to extend mediolaterally relative to a spine of a patient, the crossbar having opposite first and second ends, a connector element adapted to connect the crossbar to a first vertebra, a first artificial cephalad bearing member adapted for connection to the first end of the crossbar and adapted to engage a first caudal facet joint element connected to a second vertebra, and a second artificial cephalad bearing member adapted for connection to the second end of the crossbar and adapted to engage a second caudal facet joint element connected to the second vertebra. 1. A surgical system comprising:a first upper anchor having a first stem and a second upper anchor having a second stem, wherein the first upper anchor supports a first upper bearing surface and the second upper anchor supports a second upper bearing surface;a first lower anchor and a second lower anchor, wherein the first lower anchor supports a first lower bearing surface and the second lower anchor supports a second lower bearing surface, wherein the first upper bearing surface is positioned adjacent the first lower bearing surface and the second upper bearing surface is positioned adjacent the second lower bearing ...

SUBCHONDRAL TREATMENT OF JOINT PAIN OF THE SPINE

Methods for altering the natural history of degenerative disc disease and osteoarthritis of the spine are proposed. The methods focus on the prevention, or delayed onset or progression of, subchondral defects such as bone marrow edema or bone marrow lesion, and subchondral treatment to prevent the progression of osteoarthritis or degenerative disc disease in the spine and thereby treat pain. 1. (canceled)2. A method of injecting an injectable fluid material into a targeted treatment area in a subchondral region of a facet in a spinal segment of a patient , the method comprising:identifying bone marrow edema in a facet in a spinal segment of a patient, the bone marrow edema occurring in a subchondral region of the facet, the subchondral region of the facet occurring under an articular surface of the facet;creating, in the facet that contains the bone marrow lesion in the subchondral region, a subchondral injection path to a targeted treatment area for injecting an injectable fluid material into the targeted treatment area, wherein the targeted treatment area includes an area in the subchondral region where the bone marrow edema was identified, and wherein said creating preserves an existing condition of the articular surface of the facet; andinjecting an injectable fluid material into the targeted treatment area via the subchondral injection path, wherein the injectable fluid material includes an osteogenic, osteoconductive and/or osteoinductive material.3. The method of claim 2 , wherein said identifying includes identifying with MRI.4. The method of claim 2 , wherein the injectable fluid material is left in the targeted treatment area without also delivering and leaving a solid structural implant in the targeted treatment area in addition to the injectable fluid material.5. The method of claim 2 , wherein said creating is conducted without further creating a void inside the facet in or adjacent to the targeted treatment area.6. The method of claim 2 , wherein the ...

Arcuate Fixation Member

Arcuate fixation members with varying configurations and/or features are provided, along with additional components for use therewith in provided fixation systems and intervertebral implant systems. The arcuate fixation members may be of varying lengths, cross sectional geometries, and/or cross sectional areas, and may be configured with various features such as heads configured to accept other fixation system components, tabs to allow arcuate fixation member-in-arcuate fixation member or fixation anchor-in-arcuate fixation member configurations. Applications of fixation systems and intervertebral implants systems utilizing arcuate fixation members are particularly suitable when a linear line-of-approach for delivering fixation members is undesirable. 1an implant body defining a first bone-engaging surface, a second bone-engaging surface spaced from the first bone engaging surface along a transverse direction, a posterior end, an anterior end spaced from the posterior end along a longitudinal direction that is perpendicular to the transverse direction, and opposed lateral sides spaced apart with respect to each other along a lateral direction that is substantially perpendicular to the transverse direction and the longitudinal direction, the opposed lateral sides extending between the first and second bone-engaging surfaces;a fixation plate attached to the implant body, the fixation plate defining a posterior surface and an anterior surface spaced from the posterior surface along the longitudinal direction, and first and second lateral arms that extend away from the anterior surface along the longitudinal direction, the first and second lateral arms each defining a terminal end attached to the implant body, the fixation plate further defining a first and second upper curved apertures, and first and second lower curved apertures spaced from the first and second upper curved apertures along the transverse direction, and each at least one curved aperture having an ...

Expandable vertebral implant

The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.

IMPLANT FOR BONE SEGMENT FUSION

A bone screw implant is provided for immobilizing the articular surfaces of two bone segments by securing, fusing, or compression the two segments. The implant may be fabricated from a porous biocompatible metal and have a cylindrical shape and fully or partially threaded and may have variable pitch threads and a variable diameter of the shaft. The implant may include a blunt tip or a fluted self-drilling tip and a headless screwdriver socket. Large pitch cancellous threads may be in the leading-end portion of the cylinder shaft, and smaller pitch cortical threads may be at the trailing edge portion of the shaft. The implant may be fenestrated, it may have a roughened surface, and it may be coated with an osteoconductive material. The implant may be cannulated. In a specific embodiment, the implant is used for immobilizing the articular surfaces of a sacroiliac joint. 1. An implant for bone fusion or fixation , comprisinga. A cylindrical threaded implant fabricated from a titanium or tantalum metal or alloy with a similar modulus of elasticity to the bone, wherein the titanium or tantalum metal or alloy is a porous material with pore sizes ranging in 100 to 900 μm and a porosity of 60-65%;{'b': '120', 'b. wherein the shaft () of the cylinder of the implant has a diameter between 4 mm to 14 mm and length between 10 mm to 280 mm;'}{'b': 122', '125, 'c. wherein the implant has a distal section () with a distal end ();'}{'b': 123', '150', '152, 'd. wherein the implant has a headless proximal section () and a proximal end () having a socket () for attachment to a tool that can rotate to screw the implant into place;'}{'b': 142', '120', '144', '123, 'figref': {'@idref': 'DRAWINGS', 'FIG. 12, 142'}, 'e. wherein the implant is threaded with large pitch cancellous helical threads () on a portion of the shaft (), or smaller pitch cortical helical threads () on a portion of shaft (), or wherein the implant has uniform threads ();'}{'b': '160', 'f. wherein the implant has at ...

Vascularized Porous Metal Orthopaedic Implant Devices

An osteoconductive vascularized porous metal implant device and method for implanting the vascularized device are described herein. The vascularized implant device comprises an implant which is porous titanium, tantalum or other metal which is biocompatible with the mammalian body and at least one vascular conduit which connects the porous implant to an animal vasculature, such as a human vascular system. 1. A method of performing an orthopedic surgery to connect bone surfaces , the method comprising connecting a porous metal implant device with the vascular system of a host receiving implantation of the device , the device comprising:a rigid porous metal implant which is biocompatible with the mammalian body; andat least one implantable inlet vascular conduit comprising a biocompatible polymer, the inlet vascular conduit having first and second ends and is arranged and configured to supply blood into the implant and to connect the porous implant to a mammalian vascular system,the porous metal implant having internal voids which form at least 50% by volume percent of the implant, and the at least one vascular conduit providing blood flow into the porous metal implant by having the inlet vascular conduit extend into and below an outer surface of the porous metal implant to effect blood flow from a vascular system of a host receiving implantation of the device into internal portions of the porous metal implant, the blood flow effected by the vascular system of the host receiving implantation of the device after implantation, wherein the first end of the inlet vascular conduit is connected to a blood vessel and the second end of the inlet vascular conduit is below an outer surface of the rigid metal implant.2. The method of claim 1 , wherein the metal of the implant is selected from the group consisting of porous titanium claim 1 , porous titanium-alloy claim 1 , porous tantalum and porous tantalum-alloy implant claim 1 , the metal implant having pores of about 300 nm ...

Plastically deformable inter-osseous device

Described here are deformable monolithic, stabilization devices, or implants, suitable for use within bone and between bones, for instance, to fuse vertebral bodies, to repair herniated discs, or to repair spinal compression fractures. The implants are introduced into a chose site at a first, smaller height and then plastically deformed to achieve a second, but unique, pre-selected, larger height. Variations of the device provide one or more specific larger heights. The devices are particularly suitable as intervertebral spinal fusion implants for the immobilization of adjacent vertebral bodies. Methods of deploying the implants are also described as are instruments for such deployment.

CERAMIC SURFACE ARTHROPLASTY SYSTEM

The invention relates to a ceramic surface arthroplasty system, which consists of a convex, hemispherical, metallic implant () and a hollow hemispherical metal implant (). The implants are coated with porcelain or zirconium oxide layer on their friction surfaces to avoid the creation of metallic microparticles. The convex implant () has a navel () on the thread () of which a bone-piercing pre-tensioning needle () is screwed and is tightened with a washer () at the area of the major trochanter or bulge. Further, it has protruding ribs () immersed on the surface of the head. 115416793. A ceramic surface arthroplasty system , consisting of a convex , hemispherical metallic implant () with a metal surface , on the inner surface of which there are meridian protruding ribs () and a navel () at the implant pole () , with a female thread () on which a pretensioning needle () is screwed , which intersects the neck of the bone and is tightened in the area of the major trochanter or bulge using a nut-washer () set , and a hollow hemispherical metal implant () with a metal surface , characterized in that both implants are coated with porcelain or zirconium oxide on the adjacent surfaces.2138. A ceramic surface arthroplasty system claim 1 , according to claim 1 , characterized in that the inner side of the convex hemispherical metal implant () and the outer side of the hollow hemispherical metal implant () are covered with a porous metal layer () to achieve osteointegration with the corresponding bones. The invention relates to the field of surgical instruments, devices or methods, and more particularly to artificial substitutes or replacements for parts of the body, and more particularly to implants for hip joint at the point of the femoral head, for replacement only of the epiphyseal sections of femur and acetabulum, without cutting off the entire natural femoral head.The ceramic surface arthroplasty system disclosed in the present invention has not been disclosed in the prior ...

METHODS FOR ROBOTIC SURGERY USING A CANNULA

Methods for preparing a bone in surgery using an imaging system, a navigation system having a locating device, and a robotic system having a cutting tool. A cannula is guided into an incision to expand the incision and provide access to the bone so that the cutting tool is insertable through the cannula to remove material from the bone. An implant is insertable through the cannula to be placed in the bone. 1. A method of preparing a bone in surgery using an imaging system , a navigation system having a locating device , and a robotic system having a cutting tool , said method comprising the steps of:generating intraoperative images of a bone of a patient with the imaging system;tracking a position of the bone during the surgical procedure with the locating device coupled to the patient;providing the robotic system with positional information from the navigation system as to a position of the cutting tool relative to the position of the bone;effecting movement of the cutting tool with the robotic system based on the positional information from the navigation system; andguiding a cannula into an incision to expand the incision and provide access to the bone so that the cutting tool is insertable through the cannula to remove material from the bone and an implant is insertable through the cannula to be placed in the bone.2. The method of claim 1 , further comprising monitoring with the navigation system a location of the cannula inserted through the incision.3. The method of claim 1 , further comprising effecting the movement of the cutting tool with the robotic system while the cutting tool removes the material from the bone.4. The method of claim 1 , further comprising arranging the navigation system to separately track the position of the bone and monitor a location of the cannula.5. The method of claim 1 , further comprising monitoring with the navigation system a location of a guide wire within the cannula and inserted into the bone of the patient.6. The method of ...

Orthopedic component of low stiffness

An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

EXPANDABLE INTERBODY IMPLANT

An intervertebral implant that can be surgically introduced between adjacent vertebrae and expanded in situ to occupy an optimal space between the vertebrae. The implant is inserted into the evacuated disc space obliquely and then oriented so as to extend laterally across the anterior adjacent vertebrae with its outer ends of the implant supported by the cortical rims on the opposite sides of the vertebrae. The implant has two body members with a space therebetween so the implant may be then distracted and a spacer of predetermined thickness that may be inserted within the space between the body members so as to maintain a desired amount of distraction. The upper and lower surfaces of the implant may have a desired lordotic angle. A method of using an implant is disclosed which permits endoscopic visualization of the disc space. 1. An expandable spinal implant for insertion in a disc space between two adjacent vertebrae bodies to be fused together by bone graft material placed in said disc space , said vertebrae bodies each having a cortical rim and an end plate within said cortical rim , said disc space being substantially defined by an annulus attached to said adjacent vertebrae bodies and by the endplates of said adjacent vertebrae bodies , said implant comprising an elongate body having a height and a width such that said implant may be inserted into the disc space through an incision in a posterior portion of the annulus , said implant having a length such that with said implant positioned within said disc space the implant may be oriented to extend across the disc space so that said implant is at least in part supported on said cortical rim of at least one of said vertebrae bodies , said implant having a lower body member and an upper body member each of which is adapted to be cooperable with a distractor for distraction of said body members while said implant is within said disc space so as to effect distraction of said disc space , said implant further ...

PLASTICALLY DEFORMABLE INTER-OSSEOUS DEVICE

Described here are deformable, monolithic, stabilization implants suitable for use within bone and between bones to fuse vertebral bodies, to repair herniated discs, or to repair spinal compression fractures. The implants are introduced into a chosen site at a first, smaller height and then plastically deformed to achieve a second, but unique, pre-selected, larger height. Variations of the device provide one or more specific larger heights. The devices are suitable as intervertebral spinal fusion implants for the immobilization of adjacent vertebral bodies. Methods of and instruments for deployment of the implants are also described. Also described are variations of the device suitable as sizing instruments. 1. An orthopedic stabilizing device for placement in an interosseous space defined by adjacent bony surfaces , comprising a plastically deformable monolithic body that:a.) is expandable along a height axis between a first smaller height to a second larger expanded height by plastic deformation of the monolithic body, andb.) has first and second matchable, partial columns that are not in contact with each other at the first height and are operative to engage each other only at the second height to form a supporting structure along the height axis.2. An orthopedic stabilizing device for placement in an interosseous space defined by adjacent bony surfaces , comprising a plastically deformable monolithic body expandable only along a height axis and expandable between a first smaller height to a second larger expanded height by plastic deformation of the monolithic body.3. A kit comprising a device selected from the group consisting of a) the stabilizing device of , and b) the stabilizing device of , and an installation tool operative to cooperate with the selected stabilizing device for placing the stabilizing device in an interosseous space defined by adjacent bony surfaces.4. The kit of claim 3 , wherein the installation tool comprises members operative to provide ...

Method and spacer device for spanning a space formed upon removal of an intervertebral disc

An intervertebral spacer is designed particularly for patients who are not candidates for total disc replacement. The spacer maintains disc height and prevents subsidence with a large vertebral body contacting surface area while substantially reducing recovery time by eliminating the need for bridging bone. The intervertebral spacer or fusion spacer includes a rigid spacer body sized and shaped to fit within an intervertebral space between two vertebral bodies. In one embodiment, the spacer body has two opposed metallic vertebral contacting surfaces, at least one fin extending from each of the vertebral contacting surfaces and configured to be positioned within slots cut into the two vertebral bodies. Holes, if present, cover less than 40 percent of the entire vertebral body contacting surfaces to provide increased bone ongrowth surfaces and to prevent subsidence.

Method of doping surfaces

Disclosed herein are methods of treating an article surface. The method comprises removing a metal oxide surface from the metal substrate to expose a metal surface; and delivering particles comprising a dopant from at least one fluid jet to the metal surface to impregnate the surface of the article with the dopant. The method also comprises delivering substantially simultaneously a first set of particles comprising a dopant and a second set of particles comprising an abrasive from at least one fluid jet to a surface of an article to impregnate the surface of the article with the dopant.

SELF-PIVOTING SPINAL IMPLANT AND ASSOCIATED INSTRUMENTATION

An intervertebral implant includes an insertion end, an opposing engagement end, and first and second opposed main surfaces configured to contact respective adjacent vertebral endplates. Each of the first and second main surfaces has an anterior edge, a posterior edge, and extends between the insertion and engagement ends. Anterior and posterior walls are formed between the first and second main surfaces and along the respective anterior and posterior edges and converge at the insertion and engagement ends. A slot is formed at the engagement end and extends continuously between and at least partially along the anterior and posterior walls. A post is positioned within the slot, spaced from at least one of the anterior and posterior walls and extending at least partially between the first and second main surfaces. The post includes a plurality of exposed facets and is configured for engagement with a pivotable insertion instrument. 1an instrument defining a proximal end, a distal end, and a grasper at the distal end, an exterior of the grasper defining first and second abutment surfaces that are spaced from each other; and. A system for spine surgery at a disc space disposed between first and second endplates of adjacent vertebral bodies of a patient, the system comprising: The present application is a continuation of U.S. application Ser. No. 15/863,109, filed Jan. 5, 2018, which is a continuation of U.S. application Ser. No. 15/161,562, filed May 23, 2016 now U.S. Pat. No. 9,931,224, which is a divisional of U.S. application Ser. No. 14/505,471, filed Oct. 2, 2014 now U.S. Pat. No. 9,358,133, which is a divisional of U.S. application Ser. No. 12/612,886, filed Nov. 5, 2009 now U.S. Pat. No. 9,028,553, the entire contents of each of which are incorporated by reference into this application.The unilateral transforaminal insertion of an interbody spacer for lumbar spinal fusion presents challenges to the surgeon tasked with the procedure due to the curved manipulation ...

Intervertebral Implants, Systems, And Methods Of Use

An intervertebral implant frame that is configured to be attached to a spacer body can include a pair of arms that extend longitudinally from a support member such that the arms extend substantially around the spacer body. The arms may be configured to expand, crimp, or otherwise engage the spacer body to thereby hold the spacer body to the frame. The spacer body may be made from bone graft. 1. An intervertebral implant frame comprising:a support member that defines an inner surface, and at least two fixation element receiving apertures, each of the fixation element receiving apertures configured to receive a respective bone fixation element to thereby attach the intervertebral implant frame to first and second vertebral bodies, respectively when the intervertebral implant frame is disposed in an intervertebral space defined by first and second surfaces of the first and second vertebral bodies, respectively;a first arm that extends from the support member and includes a first inner spacer contacting surface, the first arm defining a first terminal end; anda second arm that extends from the support member and includes a second inner spacer contacting surface spaced from the first inner spacer contacting surface along a first direction, the second arm defining a second terminal end, wherein the first and second terminal ends are each spaced from the support member along a second direction that is substantially perpendicular to the first direction so as to define first and second lengths, respectively; andwherein 1) the first and second inner spacer contacting surfaces define at least first and second respective contact locations, and at least one of the first and second arms is flexible so as to be movable between a first position, whereby the frame defines a first distance between the first and second contact locations along the first direction, and a second position, whereby the frame defines a second distance between the first and second contact locations along the ...

DEPOSITION OF DISCRETE NANOPARTICLES ON AN IMPLANT SURFACE

A method of forming a nanocrystalline surface on an implant is disclosed. The method comprises the act of roughening at least a portion of the implant surface to form a roughened surface. The method further comprises the act of, without forming an alkoxide on the roughened surface, depositing nanocrystals on the roughened surface. The nanocrystals comprise a material having a property that promotes osseointegration. 1. A method of forming a nanocrystalline surface on an implant , the method comprising the acts of:roughening at least a portion of the implant surface to form a roughened surface;without forming an alkoxide on the roughened surface, depositing nanocrystals on the roughened surface, the nanocrystals comprising a material having a property that promotes osseointegration.2. The method of claim 1 , wherein the implant is made of a metal selected from the group consisting of tantalum claim 1 , cobalt claim 1 , chromium claim 1 , titanium claim 1 , stainless steel claim 1 , or alloys thereof.3. The method of claim 1 , wherein the metal comprises titanium.4. The method of claim 1 , wherein the implant is made of a material including ceramic.5. The method of claim 1 , wherein the implant is a dental implant.6. The method of claim 5 , wherein the portion of the implant surface is a threaded bottom portion for facilitating bonding with bone.7. The method of claim 1 , wherein the act of roughening the implant surface comprises:removing a native oxide layer from the implant surface; andacid etching the resulting surface.8. The method of claim 1 , wherein the act of roughening the implant surface creates irregularities claim 1 , the irregularities having peak-to-valley heights not greater than about 20 microns.9. The method of claim 1 , wherein the nanocrystals include hydroxyapatite claim 1 , the nanocrystals being on the order of about 20 nanometers to about 100 nanometers.10. The method of claim 9 , wherein the act of depositing the hydroxyapatite nanocrystals ...

Intervertebral cage for fusion

An intervertebral fusion mechanism includes a disc cage having a scaffolding structure to support bone growth and a porous cancellous bone feeder anchor, connected to the disc cage, for providing a biological material transference interface between cancellous bone and the disc cage.

INTERVERTEBRAL SPACER THAT DYNAMICALLY PROMOTES BONE GROWTH

A dynamic intervertebral spacer includes a ring which is split on an anterior portion. A posterior portion of the ring acts as a torsion spring. After implantation, the ring is able to act as a spring between superior and inferior vertebral bodies, thus allowing dynamic bone growth in fusion procedures.

Laser-Produced Porous Surface

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. 1depositing a first layer of a powder made from a metal selected from the group consisting of titanium, titanium alloys, stainless steel, cobalt chrome alloys, tantalum and niobium onto a substrate; andscanning a laser beam having a power (P) for a period of time (μsec) with a point distance (μm), to form a portion of a plurality of predetermined unit cells within said metal powder layer.. A method of producing a three-dimensional porous tissue in-growth structure comprising the steps of: The present application is a continuation of U.S. patent application Ser. No. 14/671,545 filed Mar. 27, 2015 which is a continuation of U.S. patent application Ser. No. 13/605,354 filed Sep. 6, 2012, which is a continuation-in-part of U.S. patent application Ser. No. 12/843,376, now U.S. Pat. No. 8,268,100, filed Jul. 26, 2010, which is a continuation of U.S. patent application Ser. No. 12/386,679, now U.S. Pat. No. 8,268,099, filed Apr. 22, 2009, which is a continuation of U.S. patent application Ser. No. 10/704,270, now U.S. Pat. No. 7,537,664, filed Nov. 7, 2003, which claims the benefit of U.S. Provisional Application No. 60/424,923 filed Nov. 8, 2002, and U.S. Provisional Application No. 60/425,657 filed Nov. 12, 2002. U.S. patent application Ser. No. 13/605,354 is also a continuation of U.S. patent application Ser. No. 12/846,327 filed Jul. 29, 2010, ...

Expandable interbody implant

An intervertebral implant that can be surgically introduced between adjacent vertebrae and expanded in situ to occupy an optimal space between the vertebrae. The implant is inserted into the evacuated disc space obliquely and then oriented so as to extend laterally across the anterior adjacent vertebrae with its outer ends of the implant supported by the cortical rims on the opposite sides of the vertebrae. The implant has two body members with a space therebetween so the implant may be then distracted and a spacer of predetermined thickness that may be inserted within the space between the body members so as to maintain a desired amount of distraction. The upper and lower surfaces of the implant may have a desired lordotic angle. A method of using an implant is disclosed which permits endoscopic visualization of the disc space.

Systems and methods for ligament balancing in robotic surgery

Systems and methods for ligament balancing during robotic surgery. One or more transducers are positioned within a knee joint to detect forces indicative of tension in ligaments and to provide output based on the detected forces. A distraction device is used to provide a distraction force to cause movement of a distal end portion of a femur relative to a proximal end portion of a tibia to increase tension in the ligaments. Information associated with output from the transducers is displayed for viewing.

TIBIAL AUGMENTS FOR USE WITH KNEE JOINT PROSTHESES, METHOD OF IMPLANTING THE TIBIAL AUGMENT, AND ASSOCIATED TOOLS

A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted to within different portions of the slot. Methods for using the tools and/or implanting the prosthetic devices discussed above are also described. 1. (canceled)2. A tibial implant system , comprising:a tibial component of a knee joint prosthesis, the tibial component positionable in a proximal portion of a human tibia and comprising a tibial plate and a tibial stem component, the tibial stem component contacting the tibial plate and extending from the tibial plate to a distal-most end of the tibial stem component;a first shaped annular member constructed separately from the tibial plate and the tibial stem component, the first shaped annular member connected to the tibial stem component for augmenting the tibial component in the proximal portion of the human tibia; anda second shaped annular member constructed separately from the tibial plate and the tibial stem component, the second shaped annular member connected to the tibial stem component for augmenting the tibial component in the proximal portion of the human tibia;wherein the first shaped annular member and the second shaped annular member are of different sizes and each have a height extending between a proximal end and a distal end of the respective shaped annular member, ...

Stemless shoulder implant

The present disclosure provides a shoulder prosthesis. The shoulder prosthesis includes a glenoid component, a humeral component, and an articulation component. The glenoid component includes a glenoid body having a proximal side and a distal side, the distal side shaped to engage with a resected portion of a glenoid cavity. The humeral component includes a humeral body having a proximal side and a distal side, the distal side shaped to engage with a resected portion of a humerus. The articulation component is positionable between the proximal side of the glenoid component and the proximal side of the humeral component, the articulation component configured to be maintained between the glenoid and humeral components, after implantation, by at least one of a deltoid muscle and a rotator cuff.

STANDALONE INTERBODY IMPLANTS

Stand-alone interbody fusion devices for engagement between adjacent vertebrae. The stand-alone interbody fusion devices may include a spacer or endplates and one or more inserts, members, or frames coupled to the spacer or endplates. The inserts, members, or frames may be configured and designed to provide the apertures which are designed to retain bone fasteners, such as screws or anchors, and secure the implant to the adjacent vertebrae. 1. An intervertebral implant for implantation in an intervertebral space between adjacent vertebrae , the implant comprising:a frame having a front portion and a plurality of arms extending from the front portion and joined together to form a ring-like structure, the front portion at least partially defining a fastener aperture sized and dimensioned for receiving a fastener; andat least one endplate including at least one outer surface having a contact area configured to engage adjacent vertebrae, the at least one endplate being affixed to the frame such that the at least one endplate contacts at least a portion of the plurality arms,wherein the frame includes at least one projection extending along a length of the plurality of arms and the at least one endplate defines at least one recess sized and configured to receive the at least one projection.2. The implant of claim 1 , wherein the front portion has a first height and the plurality of arms have a second height that is less than the first height.3. The implant of claim 1 , wherein the frame includes a raised rear portion and the at least one endplate includes a plurality of endplates configured to be separated a lateral distance due to the raised rear portion.4. The implant of claim 3 , wherein the raised rear portion is substantially flush with the outer surface of the at least one endplate.5. The implant of claim 1 , wherein the at least one endplate includes a plurality of endplates configured to be separated a vertical distance due to a thickness of the plurality of arms ...

Spinal implant configured for midline insertion

The embodiments provide a spinal implant that is configured for midline insertion into a patient's intervertebral disc space. The spinal implant may have a body and the body comprises one or more apertures. The apertures receive fixation elements, such as a screw and the like. The fixation element may comprise one or more anti-backout features, such as a split ring. In addition, at least some of the apertures are designed to permit a predetermined amount of nutation by a fixation element. The apertures that allow nutation enable the fixation element to toggle from one position to another, for example, during subsidence of the implant in situ. Some of the apertures may be configured to rigidly lock with the fixation elements. Moreover, the spinal implant may include features, such as one or more bores, that can accommodate imaging marks to help guide a surgeon.

X-RAY MARKER AND ENDPROSTHESIS WITH X-RAY MARKER

An x-ray marker for an endoprosthesis and an endoprosthesis with an x-ray marker are provided. The endoprosthesis includes a hollow cylinder made of a first radiopaque metal and a marker element, which is fixedly connected to the hollow cylinder and which is arranged inside the hollow cylinder and consists of a second radiopaque metal. The marker element can be a metal powder or in the form of metal particles which is/are embedded in the electrically non-conductive material. The marker element can be solid cylinder with a diameter smaller than the inner diameter of the hollow cylinder and the electrically non-conductive material can form a layer between an inner lateral surface of the hollow cylinder and a lateral surface of the solid cylinder 1. An x-ray marker for an endoprosthesis , comprising a hollow cylinder made of a first radiopaque metal and a marker element , wherein the marker element is fixedly connected to the hollow cylinder and is arranged inside the hollow cylinder and consists of a second radiopaque metal or an alloy thereof , andan electrically non-conductive material located between the marker element and the hollow cylinder.2. The x-ray marker as claimed in claim 1 , wherein the marker element comprises metal powder or in the form of metal particles which is/are embedded in the electrically non-conductive material.3. The x-ray marker as claimed in claim 1 , wherein the marker element comprises a solid cylinder with a diameter smaller than the inner diameter of the hollow cylinder and the electrically non-conductive material forms a peripheral layer between an inner lateral surface of the hollow cylinder and a lateral surface of the solid cylinder.4. The x-ray marker as claimed in claim 3 , wherein the peripheral layer has a layer thickness in the range of 7.5-15 μm.5. The x-ray marker as claimed in claim 3 , wherein the inner lateral surface of the hollow cylinder and the lateral surface of the solid cylinder have a roughness Ra in the range of 0 ...

CHARCOT TRABECULAR SYSTEM AND METHOD FOR LIMB SALVAGE SURGERY

A Charcot trabecular system and method is provided. The Charcot trabecular system embodies a threaded bolt-like fastener, wherein a middle portion of the shank of the systemic fastener is made of a porous material, while the remaining portions of the systemic fastener denser provides a denser material. The porous shank portion may be made of material dimensioned and adapted to pass blood and particulate bone matter therethrough. As a result, in use when connecting bones together, the denser material provides for stabilization and structural support to the associated damaged joint, while the porous shank facilitates optimal bone healing via boney ingrowth and bone ongrowth through and around the implanted systemic fastener. 1. A Charcot trabecular systemic implant , comprising:a fastener extending from a head end to a tip end;a porous shank interconnecting the head end and the tip end;the porous shank made from a porous material dimensioned to pass blood and particulate bone matter therethrough; andthe head and tip ends made from a dense material denser than the porous shank.2. The Charcot trabecular systemic implant of claim 1 , wherein the dense material is titanium claim 1 , tantalum claim 1 , or a combination thereof.3. The Charcot trabecular systemic implant of claim 2 , further comprising:a tip circumferential threading disposed between the porous shank and a distal end of the tip end; anda head circumferential threading disposed between the porous shank and a distal end of the head end.4. A method for promoting bony ingress in the foot and ankle bones during limb salvage surgery claim 2 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'providing the Charcot trabecular systemic implant of ; and'}implanting the Charcot trabecular systemic implant into one or more foot, leg, and/or ankle bones of a patient so as to provide load-bearing stability to associated joints.5. The method of claim 4 , wherein the Charcot trabecular systemic implant is ...

Degradable Cage For Bone Fusion

A cage for facilitating fusion of bones, such as vertebrae, or fusion of adjacent bone surfaces is disclosed. In one form, the cage includes a plurality of spaced apart walls comprising a biodegradable polymeric material (e.g., polycaprolactone); an osteoconductive mineral coating (e.g., a calcium compound) on at least a portion of the walls; and a bioactive agent (e.g., a bone morphogenetic protein) associated with the polymeric material and/or the coating. The bioactive agent is present in amount that induces ossification between the bones or adjacent bone surfaces. The cage may also include a fixation plate connected to at least one of the walls. 115.-. (canceled)16. A degradable cage for bone fusion comprising:a support structure having a proximal end and a distal end opposite the distal end;a central portion joined to the proximal end of the support structure;at least one flange that extends from the distal end of the support structure;a plurality of spaced apart walls that extends from the support structure so as to be positioned between the central portion and the at least one flange, the spaced apart walls defining a biodegradable polymer, or mixture of biodegradable polymers.17. The degradable cage of claim 16 , wherein the support structure claim 16 , the central portion claim 16 , the at least one flange claim 16 , and the plurality of spaced apart walls define a single monolithic SFF structure.18. The degradable cage of claim 16 , wherein the plurality of spaced apart walls defines a microporous structure;19. The degradable cage of claim 16 , wherein each of the plurality of spaced apart walls are interconnected by transverse projections.20. The degradable cage of claim 16 , wherein the plurality of spaced apart walls extend in a direction substantially parallel with the fixation plate.21. The degradable cage of claim 16 , wherein the cage has a thickness claim 16 , and the plurality of spaced apart walls have thickness less than the thickness of the ...

SPINAL FACET IMPLANTS WITH MATING ARTICULATING BEARING SURFACE AND METHODS OF USE

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra. 1. A surgical method comprising:providing a prosthesis, wherein the prosthesis comprises a fixation element and an articulating component attached to the fixation element, wherein the articulating component comprises an articulating surface; andinserting the prosthesis via the fixation element into a bone member.2. The method of claim 1 , wherein the prosthesis further comprises a flange between the fixation element and the articulating component.3. The method of claim 2 , wherein the flange comprises an opening that surrounds the fixation element.4. The method of claim 2 , wherein the flange is attached to the fixation element via a castle nut.5. The method of claim 1 , wherein the articulating component is in the shape of a blade or wing ear.6. The method of claim 1 , wherein the articulating surface has a concave shape.7. The method of claim 1 , wherein the articulating surface curves from an orientation generally perpendicular to the flange towards an orientation generally parallel to the flange from a distal end thereof to a proximal end thereof.8. The method of claim 1 , ...

Laser-Produced Porous Surface

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. 1. (canceled)2. A method of producing a three-dimensional porous structure comprising the steps of:depositing a first layer of a metal powder onto a substrate;scanning a beam at least once over the first layer of metal powder to melt the deposited first layer so as to create at least two solid portions separated from one another and defining a pore having a required pore size within the porous structure;depositing successive layers of metal powder onto the first layer; andrepeating the scanning steps for each of the successive layers until a desired height of the porous structure relative to the substrate is reached,wherein the metal powder is selected from the group consisting of titanium, titanium alloys, stainless steel, cobalt chrome alloys, tantalum and niobium,wherein the repeating steps form a plurality of pores having a pore size in a range from about 80 μm to 800 μm.3. The method of claim 2 , wherein the repeating steps form a plurality of pores claim 2 , and wherein a minimum pore size of the pores is in a range from about 80 μm to 100 μm.4. The method of claim 2 , wherein the repeating steps form a plurality of cells within the successive layers.5. The method of claim 4 , wherein the cells are regular polygons.6. The method of claim 4 , wherein the cells are irregular polygons.7. The method of claim 2 , wherein the substrate is a ...

DISTRACTIBLE INTERVERTEBRAL IMPLANT

A distractible intervertebral implant configured to be inserted in an insertion direction into an intervertebral space that is defined between a first vertebral body and a second vertebral body is disclosed. The implant may include a first body and a second body. The first body may define an outer surface that is configured to engage the first vertebral body, and an opposing inner surface that defines a rail. The second body may define an outer surface that is configured to engage the second vertebral body, and an inner surface that defines a recess configured to receive the rail of the first body. The second body moves in a vertical direction toward the second vertebral body as the second body is slid over the first body and the rail is received in the recess. 1a first implant body that defines an outer surface configured to face the first vertebral body when the distractible intervetbral implant is disposed in the intervertebral space, and an opposed inner surface that defines a rail; anda second implant body that defines an outer surface configured to face the second vertebral body when the distractible intervetbral implant is disposed in the intervertebral space, and an opposed inner surface that defines a recess configured to receive the rail of the first body,wherein the second implant body is configured to move along the vertical direction as the second implant body is translated over the first implant body and the rail is received by the recess, so as to distract the first and second vertebral bodies.. A distractible intervertebral implant configured to be inserted into an intervertebral space along an insertion direction, the intervertebral space defined between a first vertebral body and a second vertebral body that is spaced from the first vertebral body along a vertical direction, the distractible intervertebral implant comprising: This application is a continuation of U.S. patent application Ser. No. 15/411,005, filed Jan. 20, 2017, which is a ...

Osteoarthritis treatment and device

A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container.

SELF-PIVOTING SPINAL IMPLANT AND ASSOCIATED INSTRUMENTATION

An intervertebral implant includes an insertion end, an opposing engagement end, and first and second opposed main surfaces configured to contact respective adjacent vertebral endplates. Each of the first and second main surfaces has an anterior edge, a posterior edge, and extends between the insertion and engagement ends. Anterior and posterior walls are formed between the first and second main surfaces and along the respective anterior and posterior edges and converge at the insertion and engagement ends. A slot is formed at the engagement end and extends continuously between and at least partially along the anterior and posterior walls. A post is positioned within the slot, spaced from at least one of the anterior and posterior walls and extending at least partially between the first and second main surfaces. The post includes a plurality of exposed facets and is configured for engagement with a pivotable insertion instrument. 1. (canceled)2. A system for spine surgery at a disc space disposed between first and second endplates of adjacent vertebral bodies of a patient , the system comprising:an instrument defining a proximal end, a distal end, and a grasper at the distal end, an exterior of the grasper defining first and second abutment surfaces that are spaced from each other; andan intervertebral implant having an insertion end and an opposed engagement end, the intervertebral implant including a post disposed within a slot at the engagement end, wherein the grasper is configured to releasably grasp the post such that the intervertebral implant is rotatable with respect to the instrument in a range of articulation defined between an initial articulation position and a final articulation position, the intervertebral implant defining a third abutment surface and a fourth abutment surface within the slot, the third and fourth abutment surfaces being angularly offset from one another, wherein the abutment surfaces are cooperatively configured such that, 1) at the ...

ZERO-PROFILE INTERBODY SPACER AND COUPLED PLATE ASSEMBLY

An implant for insertion into the disc space between vertebrae. The implant including a spacer portion, a plate portion coupled to the spacer portion, a plurality of bone fixation elements for engaging the vertebrae and a retention mechanism for preventing the bone fixation elements from postoperatively uncoupling from the implant. 1. (canceled)2. An intervertebral implant system comprising:an intervertebral implant defining a trailing end and a leading end opposite the trailing end along an insertion direction into an intervertebral disc space defined between first and second vertebrae, the intervertebral implant further defining a top surface configured to contact the first vertebra, and a bottom surface opposite the top surface with respect to a second direction that is perpendicular to the insertion direction, the bottom surface configured to contact the second vertebra, wherein the intervertebral implant further defines first and second bone fixation holes offset from each other along a third direction that is perpendicular to each of the insertion direction and the second direction;an implant inserter instrument configured to removably attach to the implant at a contact region that includes all locations at which the implant inserter instrument contacts the implant when the implant inserter instrument is attached to the implant, wherein 1) an entirety of the contact region is positioned between the first bone fixation hole and the second bone fixation hole with respect to the third direction, and 2) the contact region and the first bone fixation hole are each positioned such that a straight line drawn in the third direction intersects both the contact region and the first bone fixation hole; anda stop configured to abut at least one of the first and second vertebrae so as to prevent further insertion of the implant into the intervertebral disc space in the insertion direction,wherein the first bone fixation hole is configured to receive a first bone fixation ...

Modular anchor bone fusion cage

A modular anchor bone fusion cage is provided. The cage includes a spacer configured to fit into a space between the faces of two bones that are to be fused together. A fusion plate having at least a main body portion is coupled to the spacer by a connector. Fasteners extend through the fusion plate to engage the bone. At least some of the fasteners also extend through the spacer to engage the opposed faces of the bone. A cover plate is coupled to the fusion plate to inhibit the fasteners from backing out prior to fusion of the bones.

ANGLING INSERTER TOOL FOR EXPANDABLE VERTEBRAL IMPLANT

The present invention relates to a method of inserting an implant comprising providing an expandable vertebral implant. The method further may comprise providing an angling inserter tool. The angling inserter tool comprises a handle portion, a base portion, and a tip assembly, the base portion being disposed between the handle portion and the tip assembly. The method further may comprise distally advancing a central shaft of the tip assembly with rotation into an opening in the expandable vertebral implant to secure the angling inserter tool to the expandable vertebral implant. The method further may comprise positioning the expandable vertebral implant in a patient's spine. The method further may comprise for causing the tip assembly to angulate with respect to a longitudinal axis of the angling inserter tool, wherein the internal shaft is coaxial with an outer cylinder of the base portion. 1. A method for inserting an implant , comprising:providing a vertebral implant in between two adjacent vertebral bodies;providing an angling inserter tool configured to engage the vertebral implant; a base portion including an internal shaft;', 'a tip assembly rotatably secured to the base portion by a pin having a pin axis, wherein the tip assembly comprises a tip portion and a central shaft disposed in a through-bore in the tip portion; and', 'a primary gear mechanism and a secondary gear mechanism configured to transfer rotation to the central shaft, wherein the tip assembly rotates about the pin axis upon distal advancement of the internal shaft., 'expanding the vertebral implant in between the two vertebral bodies with the angling inserter tool, wherein the angling inserter tool comprises2. The method of claim 1 , wherein the angling inserter tool further comprises a knob on the base portion configured to rotate in order to cause translation of the internal shaft claim 1 , thereby causing rotation of the tip assembly about the pin axis.3. The method of claim 1 , wherein ...

Alloy for biomedical use and medical product

An alloy for biomedical use includes Zr as a main component, Nb the content of which is not less than 0.1% by weight and not greater than 25% by weight, Mo the content of which is not less than 0.1% by weight and not greater than 25% by weight, and Ta the content of which is not less than 0.1% by weight and not greater than 25% by weight. A tensile strength of the alloy is not less than 1000 MPa. A total content of Nb, Mo, and Ta in the alloy is not less than 2% by weight and not greater than 50% by weight. Mass susceptibility of the alloy is not greater than 1.50×10 −6 cm 3 /g. A Young's modulus of the alloy is not greater than 100 GPa. Also disclosed is a medical product including the alloy and a method for producing the alloy.

Systems and methods for the fusion of the sacral-iliac joint

The sacral-iliac joint between an iliac and a sacrum is fused either by the creation of a lateral insertion path laterally through the ilium, through the sacral-iliac joint, and into the sacrum, or by the creation of a postero-lateral insertion path entering from a posterior iliac spine of an ilium, angling through the sacral-iliac joint, and terminating in the sacral alae. A bone fixation implant is inserted through the insertion path and anchored in the interior region of the sacrum or sacral alea to fixate the sacral-iliac joint.

Angling Inserter Tool For Expandable Vertebral Implant

The present invention relates to a method of inserting an implant comprising providing an expandable vertebral implant. The method further may comprise providing an angling inserter tool. The angling inserter tool comprises a handle portion, a base portion, and a tip assembly, the base portion being disposed between the handle portion and the tip assembly. The method further may comprise distally advancing a central shaft of the tip assembly with rotation into an opening in the expandable vertebral implant to secure the angling inserter tool to the expandable vertebral implant. The method further may comprise positioning the expandable vertebral implant in a patient's spine. The method further may comprise for causing the tip assembly to angulate with respect to a longitudinal axis of the angling inserter tool, wherein the internal shaft is coaxial with an outer cylinder of the base portion.

Arcuate Fixation Member

Arcuate fixation members with varying configurations and/or features are provided, along with additional components for use therewith in provided intervertebral implants. The arcuate fixation members may be of different lengths, cross sectional geometries, and/or cross sectional areas. Applications of intervertebral implants utilizing arcuate fixation members are particularly suitable when a linear line-of-approach for delivering fixation members is undesirable.

Systems and methods for the fixation or fusion of bone

Various bone fixation/fusion devices are sized and configured to be placed across fracture fragments or between bones that are to be fused.

ANKLE REPLACEMENT SYSTEM

A prosthesis suited for orthopedic implantation possesses a multi-piece stem component that supports an artificial joint surface that can articulate with another artificial joint surface in various ways. The prosthesis can be assembled in a snap fit and/or interlocking fashion that provides positive locking means without the use of screws or other fasteners. The prosthesis can accommodate fitment of a plastic joint surface made, e.g., from ultra high molecular weight polyethylene. The prosthesis is well suited for use in an ankle replacement system that can be installed using minimally invasive intramedullary guidance established with respect to the major axis of the tibia by minimally invasive access through the calcaneus, through an incision in the bottom of the foot. The prosthesis makes possible the installation of a total ankle system using minimally invasive anterior access to the ankle joint for making bony cuts and to install prosthesis components. 1. A prosthesis , comprising:a first prosthesis component sized and configured to be disposed in an intramedullary path; anda second prosthesis component sized and configured to be disposed in the intramedullary path,wherein the first and second components are configured to be connected to each other in situ.2. The prosthesis of claim 1 , further comprising:a third prosthesis component sized and configured to be disposed in the intramedullary path and connected to at least one of the first or second components.3. The prosthesis of claim 2 , wherein the first prosthesis component is an end component configured to engage an artificial joint claim 2 , and the second prosthesis component is a middle component configured to engage the first and third components.4. The prosthesis of claim 3 , wherein the first claim 3 , second claim 3 , and third prosthesis components form a stem when operatively connected.5. A prosthesis claim 3 , comprising: a first stem component sized and configured to be installed in an ...

Patellofemoral implant with porous ingrowth material and method of manufacturing same

An orthopaedic implant includes: a base including a molding material; a first porous ingrowth material region coupled to the base; a second porous ingrowth material region coupled to the base; and at least one barrier insert coupled to the base, the barrier insert including a barrier material that is configured to prevent introduction of the molding material of the base into some pores of the first porous ingrowth material region and some pores of the second porous ingrowth material region during molding of the base.

Porous structure for bone implants

A bone implant includes a body having a porous structure and having a size and shape configured for fitting to a bone, preferably in a bone defect. The porous structure is comprised of regularly arranged elementary cells whose interior spaces form interconnected pores, the elementary cells are formed by basic elements arranged in layers, wherein the basic elements are shaped like tetrapods, the tetrapods in each layer being arranged in parallel orientation and being positioned in-layer rotated with respect to tetrapods of an adjacent layer. The layers with rotated and non-rotated tetrapods are alternatingly arranged. Thereby a porous structure can be achieved which features improved mechanical characteristics, leading to improved biocompatibility.

Polyethylene-cnt-hydroxyapatite coated materials

A biocompatible polymer hybrid nanocomposite coating on a surface of a substrate, such as titanium and its alloys. The coating can be achieved by an electrostatic spray coating, preferably using ultra-high molecular weight polyethylene (UHMWPE) as a matrix for the coating. For example, up to 2.95 wt. % carbon nanotubes can be used as reinforcement, as can up to 4.95 wt. % hydroxyapatite. A dispersion of CNTs and HA in the coating is substantially uniform. The tribological performance of such coatings include high hardness, improved scratch resistance, excellent wear resistance, and corrosion resistance compared to pure UHMWPE coatings.

Cage system

A system for intervetebral fusion that includes a base member with a fist support and a second support, and an end member configured to be assembled with the base member to define a space for reception of graft material, each support member including a first sidewall, a second sidewall spaced from the first sidewall and an end wall connecting the two sidewalls.

GLENOID IMPLANT AND METHOD OF USE THEREOF

A glenoid implant that is 3D-printed or machined from ceramic and/or metal as a substitute for an autograft or allograft in a surgical repair. Structural supports composed of metal are designed in the interior of the implant for support during implantation and post-operation. The remainder of the volume of the implant is composed of a material having optimal pore structure for rapid bone integration and healing. 1. A glenoid implant comprising:a substantially rectangular body having a solid structural support and a porous region surrounding the structural support, the body further having a first surface, a second surface opposite the first surface, and at least two through holes extending through the structural support from the first surface to the second surface; andat least one cylinder disposed within each of the at least two through holes, each cylinder having a telescoping peg configured to extend from the second surface into a mating hole in the glenoid.2. The implant of claim 1 , wherein the structural support comprises a biocompatible metal.3. The implant of claim 1 , wherein the structural support comprises one of titanium or tantalum.4. The implant of claim 1 , wherein the porous region comprises a resorbable ceramic.5. The implant of claim 1 , wherein the porous region comprises a semi-crystalline bioinductive/bioconductive material.6. The implant of claim 1 , wherein the porous region comprises one of hydroxyapatite (HA) or tricalcium phosphate (TCP).7. The implant of claim 1 , wherein at least one surface of the implant is coated with HA or TCP.8. The implant of claim 1 , wherein the second surface of the body comprises features for improving fixation strength of the body against the glenoid.9. The implant of claim 1 , wherein the implant is additive manufactured.10. A method of glenoid instability repair comprising:forming at least two axially-aligned passages from an anterior surface to a posterior surface of a glenoid; 'a substantially rectangular ...

Methods and Compositions for Articular Repair

Disclosed herein are methods and compositions for producing articular repair materials and for repairing an articular surface. In particular, methods for providing articular repair systems. Also provided are articular surface repair systems designed to replace a selected area cartilage, for example, and surgical tools for repairing articular surfaces.

ARTIFICIAL ACETABULUM WITH MULTI-LAYER SHELL CORE COMPOSITE STRUCTURE

An artificial acetabulum having a multilayer shell-core composite structure includes a ceramic acetabular liner, a transition layer and an acetabular shell. The acetabular shell is made of a porous metal, a porous alloy or a porous toughened ceramic; the ceramic acetabular liner is made of a ceramic material; and the transition layer is made of a composite material comprising materials of the acetabular shell and the ceramic acetabular liner. The artificial acetabulum is manufactured through sintering a green body of successively stacked layers of the ceramic acetabular liner, the transition layer and the acetabular shell, and the green body of successively stacked layers is obtained through a powder co-injection molding process. The ceramic acetabular liner of the artificial acetabulum has a high rigidness, corrosion-proof and wear-proof performance. The acetabular shell of the artificial acetabulum has a high toughness and shockresistant performance. 1. An artificial acetabulum having a multilayer shell-core composite structure , comprising: a ceramic acetabular liner , a transition layer and an acetabular shell ,wherein the acetabular shell is made of a porous metal, a porous alloy or a porous toughened ceramic, the ceramic acetabular liner is made of a ceramic material, and the transition layer is made of a composite material comprising materials of the acetabular shell and the ceramic acetabular liner; andwherein the artificial acetabulum is manufactured through sintering a green body of successively stacked layers of the ceramic acetabular liner, the transition layer and the acetabular shell, and the green body of successively stacked layers of the ceramic acetabular liner, the transition layer and the acetabular shell is obtained through a powder co-injection molding process.2. The artificial acetabulum according to claim 1 , wherein the transition layer has a single-layer or multi-layer structure.3. The artificial acetabulum according to claim 1 , wherein ...

Artificial femoral ball head with multi-layer shell core composite structure

An artificial femoral ball head having a multilayer shell-core composite structure includes a spherical shell layer, a transition layer and an inner core. The inner core is made of a toughened ceramic, the spherical shell layer is made of a ceramic material, and the transition layer is made of a composite material comprising materials of the inner core and the spherical shell layer. The artificial femoral ball head is manufactured through sintering a green body of successively stacked layers of the spherical shell layer, the transition layer and the inner core, and the green body of successively stacked layers is obtained through a powder co-injection molding process. The spherical shell layer of the artificial femoral head has a high rigidness, corrosion-proof and wear-proof performance. The inner core of the artificial femoral head has a high toughness and shockresistant performance.

MEDICAL VALVE IMPLANT FOR IMPLANTATION IN AN ANIMAL BODY AND/OR HUMAN BODY

A medical valve implant comprising: an implant structure configured as a medical valve; and a base body that includes a collar extending in a circumferential direction around the implant structure, wherein the collar includes a first cell structure composed of a plurality of cells forming an inner cross section of the base body that is matched to an outer cross section of the implant structure, characterized in that the collar includes a second cell structure fastened to an inner contour of a cell of the first cell structure at two fastening points and configured to move radially outward relative to the first cell structure so that an outer contour of the base body is formed by the first cell structure and the second cell structure. 1. A medical valve implant for implantation in an animal body and/or human body , comprising:an implant structure configured as a medical valve; anda base body that includes a collar extending in a circumferential direction around the implant structure, wherein the collar includes a first cell structure composed of a plurality of cells forming an inner cross section of the base body that is matched to an outer cross section of the implant structure, characterized in that the collar includes a second cell structure fastened to an inner contour of a cell of the first cell structure at two fastening points and configured to move radially outward relative to the first cell structure so that an outer contour of the base body is formed by the first cell structure and the second cell structure.2. The medical valve implant according to claim 1 , wherein the medical valve is a heart valve.3. The medical valve implant according to claim 1 , wherein the medical valve is an aortic valve.4. The medical valve according to claim 1 , wherein the medical valve is selected from the group consisting of a pulmonary valve claim 1 , a mitrial valve claim 1 , and a tricuspid valve.5. The medical valve implant according to claim 1 , wherein the base body ...

Implant with Independent Endplates

In some aspects, the present invention is a medical implant with an independent endplate structure that can stimulate bone or tissue growth in or around the implant. When used as a scaffold for bone growth, the inventive structure can increase the strength of new bone growth. The independent endplate structures generally include implants with endplates positioned on opposite sides of the implant and capable of at least some movement relative to one another. In most examples, the endplates have a higher elastic modulus than that of the bulk of the implant to allow the use of an implant with a low elastic modulus, without risk of damage from the patient's bone. 1. An implant comprising:a body comprising a metallic lattice structure; anda first endplate spaced apart from a second endplate, the first endplate being mechanically connected to the second endplate substantially only via the body;wherein:the first endplate comprises an upper surface for contacting a first segment of tissue and a lower surface fixed to the body;the second endplate comprises a lower surface for contacting a second segment of tissue and an upper surface fixed to the body;wherein an elastic modulus of each of the first endplate and second endplate is higher than an elastic modulus of the body;wherein the body is disposed at least partially between the first and second endplates; andeach of the first and second endplates comprise a metal.2. The implant of claim 1 , wherein substantially only via the body is defined by a connection where the body has an elastic modulus that is at least 50 percent of a construct elastic modulus.3. The implant of claim 1 , wherein substantially only via the body is defined by a connection where the body has an elastic modulus that is at least 90 percent of a construct elastic modulus.4. The implant of claim 1 , wherein the implant is configured to fuse multiple levels of the spine.5. The implant of claim 1 , wherein the implant is configured to fuse adjacent levels ...

SUBCHONDRAL TREATMENT OF JOINT PAIN OF THE SPINE

Methods for altering the natural history of degenerative disc disease and osteoarthritis of the spine are proposed. The methods focus on the prevention, or delayed onset or progression of, subchondral defects such as bone marrow edema or bone marrow lesion, and subchondral treatment to prevent the progression of osteoarthritis or degenerative disc disease in the spine and thereby treat pain. 1. (canceled)2. A method of injecting an injectable fluid material into a targeted treatment area in a subchondral region of a vertebral body of a patient for inhibiting progression of a bone marrow lesion identified in the subchondral region , the method comprising:identifying a bone marrow lesion in a subchondral region of a vertebral body of a patient, the vertebral body including a superior cartilaginous endplate abutting a first intervertebral disc and an inferior cartilaginous endplate abutting a second intervertebral disc;creating, in the vertebral body that contains the bone marrow lesion in the subchondral region, a subchondral injection path to a targeted treatment area for injecting an injectable fluid material into the targeted treatment area, wherein the targeted treatment area includes an area in the subchondral region where the bone marrow lesion was identified; andinjecting an injectable fluid material into the targeted treatment area via the subchondral injection path so that at least some of the injectable fluid material is introduced into defective bone that remains in the identified bone marrow lesion following said creating for becoming less fluid in the defective bone for reinforcing the defective bone, wherein the injectable fluid material includes an osteogenic, osteoconductive and/or osteoinductive material.3. The method of claim 2 , wherein said identifying includes identifying with MRI.4. The method of claim 2 , wherein said creating is conducted without creating a void in the targeted treatment area that opens into the superior cartilaginous endplate ...

Medical Implant Porous Scaffold Structure Having Low Modulus

A medical implant porous scaffold structure having low modulus, wherein said structure is formed by multiple basic units superposed sequentially along the three-dimensional directions in three-dimensional space, each of the basic units is composed of a quadrangular prism or hexagonal prism having central interconnected pores encircled by four or six side walls, each of the side walls is composed by a “X-type” frame structure formed by two crossed ribs, and the central interconnected pores of the adjacent basic units arranged along the axis direction of the quadrangular prism or the hexagonal prism are interconnected to each other. The structure could not only reduce the modulus of the implant, make the modulus of the implant and strength achieve an ideal match, improve the configuration of traditional metal implants to optimize the distribution of mechanical and weaken the stress shielding effect; but also has a regular interconnected pores structure which is conducive to bone tissue in-growth, and can increase mutual locking of bone tissue and implant and shorten the recovery time of patients. 1. A medical implant porous scaffold structure having low modulus , wherein said structure is formed by multiple basic units superposed sequentially along the three-dimensional directions in three-dimensional space , each of the basic units is composed of a quadrangular prism or hexagonal prism having central interconnected pores encircled by four or six side walls , each of the side walls is composed by a “X-type” frame structure formed by two crossed ribs , and the central interconnected pores of the adjacent basic units arranged along the axis direction of the quadrangular prism or the hexagonal prism are interconnected to each other.2. The medical implant porous scaffold structure having low modulus of claim 1 , wherein the inscribed circle radius of the cross section of the central interconnected pore is 150 μm to 750 μm.3. The medical implant porous scaffold structure ...

APPARATUS, SYSTEMS, AND METHODS FOR THE FIXATION OR FUSION OF BONE

Assemblies of one or more implant structures make possible the achievement of diverse interventions involving the fusion and/or stabilization of the SI-joint and/or lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. The representative lumbar spine interventions, which can be performed on adults or children, include, but are not limited to, SI-joint fusion or fixation; lumbar interbody fusion; translaminar lumbar fusion; lumbar facet fusion; trans-iliac lumbar fusion; and the stabilization of a spondylolisthesis. 1. A method for trans-iliac lumbar fusion , the method comprising:creating an insertion path entering from a posterior region of the iliac spine of the ilium, angling in a cranial direction through the SI-Joint into and through the sacral vertebra S1, and terminating in an opposite anterolateral region of a lumbar vertebra L5;providing a bone fixation implant; andinserting the bone fixation implant through the insertion path from a posterior region of the iliac spine of the ilium, angling in a cranial direction through the SI-Joint into and through the sacral vertebra S1, and terminating in an opposite anterolateral region of a lumbar vertebra L5.2. The method of claim 1 , wherein the insertion path is created in a non-invasive manner without prior removal of the intervertebral disc.3. The method of claim 1 , wherein the insertion path comprises a bore sized approximately at or approximately about an outer maximum dimension of the bone fixation implant.4. The method of claim 1 , wherein at least a first implant structure enters through an insertion path from a left posterior region of the iliac spine of the ilium claim 1 , angling in a cranial direction through the SI-Joint into and through the sacral vertebra S1 claim 1 , and terminating in a right anterolateral region of a lumbar vertebra L5 claim 1 , and wherein at least a second implant structure enters through ...

STANDALONE INTERBODY IMPLANTS

Stand-alone interbody fusion devices for engagement between adjacent vertebrae. The stand-alone interbody fusion devices may include a spacer or endplates and one or more inserts, members, or frames coupled to the spacer or endplates. The inserts, members, or frames may be configured and designed to provide the apertures which are designed to retain bone fasteners, such as screws or anchors, and secure the implant to the adjacent vertebrae. 1. An intervertebral implant for implantation in an intervertebral space between adjacent vertebrae , the implant comprising:a frame having a front portion and a plurality of arms extending from the front portion and joined together to form a ring-like structure, the front portion at least partially defining a fastener aperture sized and dimensioned for receiving a fastener; andat least one endplate including at least one outer surface having a contact area configured to engage adjacent vertebrae, the at least one endplate being affixed to the frame such that the at least one endplate contacts at least a portion of the plurality arms,wherein the front portion of the frame includes at least one protrusion that is configured and dimensioned to fit into at least one corresponding recess formed in an interior surface of at least one endplate.2. The implant of claim 1 , wherein the front portion has a first height and the plurality of arms have a second height that is less than the first height.3. The implant of claim 1 , wherein the frame includes a raised rear portion and the at least one endplate includes a plurality of endplates configured to be separated a lateral distance due to the raised rear portion.4. The implant of claim 3 , wherein the raised rear portion is substantially flush with the outer surface of the at least one endplate.5. The implant of claim 1 , wherein the at least one endplate includes a plurality of endplates configured to be separated a vertical distance due to a thickness of the plurality of arms.6. The ...

Modular anchor bone fusion cage

A modular anchor bone fusion cage is provided. The cage includes a spacer configured to fit into a space between the faces of two bones that are to be fused together. A fusion plate having at least a main body portion is coupled to the spacer by a connector. Fasteners extend through the fusion plate to engage the bone. At least some of the fasteners also extend through the spacer to engage the opposed faces of the bone. A cover plate is coupled to the fusion plate to inhibit the fasteners from backing out prior to fusion of the bones.

APPLICATION OF A POROUS MATERIAL

The present invention relates to a new application of a porous material. The porous material is composed of pore cavities and cavity walls surrounding the pore cavities, wherein the pore cavities of the porous material are three-dimensionally interconnected; the capillary force of the porous material is 5 Pa or more; and a contact angle between a surface of the cavity wall of the porous material and a liquid phase material circulating therein is less than 90°. The porous material is applied as a microcirculation power source. The porous material is used in a circulation system as a microcirculation power source for providing material exchange. The porous material is used in a separation system as a microcirculation power source for providing material separation and movement. The porous material is used in a medical implant system as a microcirculation power source for providing tissue cell growth. 1. A porous material , comprising a plurality of pore cavities and cavity walls surrounding the pore cavities , wherein the pore cavities of the porous material are three-dimensionally interconnected; a capillary force of the porous material is 5 Pa or more; and a contact angle between a surface of the cavity wall of the porous material and a liquid phase material circulating therein is less than 90°; the porous material is applied as a microcirculation power source.2. A circulation system comprising a microcirculation power source providing a power source of material exchange , wherein the microcirculation power source is a porous material , and the porous material comprises a plurality of pore cavities and cavity walls surrounding the pore cavities , wherein the pore cavities of the porous material are three-dimensionally interconnected; a capillary force of the porous material is 5 Pa or more; and a contact angle between a surface of the cavity wall of the porous material and a liquid phase material circulating therein is less than 90.3. A separation system comprising a ...

Ankle replacement system

A total ankle replacement system, novel surgical method for total ankle replacement, and novel surgical tools for performing the surgical method are described. The total ankle replacement system includes the calcaneus in fixation of a lower prosthesis body, thereby significantly increasing the amount of bone available for fixation of the lower prosthesis body and allowing the lower prosthesis body to be anchored with screws. The total ankle replacement system further includes a long tibial stem which can also be anchored into the tibia with, for example, screws, nails, anchors, or some other means of attachment. The novel surgical arthroscopic method allows introduction of ankle prostheses into the ankle joint through an exposure in the tibial tubercle. Various novel surgical instruments, such as a telescoping articulating reamer and a talo-calcaneal jig, which facilitate the novel surgical method, are also described.

SELF-PIVOTING SPINAL IMPLANT AND ASSOCIATED INSTRUMENTATION

An intervertebral implant includes an insertion end, an opposing engagement end, and first and second opposed main surfaces configured to contact respective adjacent vertebral endplates. Each of the first and second main surfaces has an anterior edge, a posterior edge, and extends between the insertion and engagement ends. Anterior and posterior walls are formed between the first and second main surfaces and along the respective anterior and posterior edges and converge at the insertion and engagement ends. A slot is formed at the engagement end and extends continuously between and at least partially along the anterior and posterior walls. A post is positioned within the slot, spaced from at least one of the anterior and posterior walls and extending at least partially between the first and second main surfaces. The post includes a plurality of exposed facets and is configured for engagement with a pivotable insertion instrument. 120-. (canceled)21. An insertion instrument for implanting an intervertebral implant into an intervertebral disc space defined between first and second vertebral bodies , the insertion instrument comprising:an outer member elongate along a longitudinal axis, the outer member having a proximal end and a distal end spaced from the proximal end along the longitudinal axis, the outer member defining a cannula; andan inner member having a proximal end and a distal end spaced from the proximal end along the longitudinal axis, a portion of the inner member disposed in the cannula of the outer member, the distal end of the inner member including a first arm and a second arm together forming a grasping portion of the insertion instrument, the grasping portion including a first interior surface of the first arm and a second interior surface of the second arm, the first and second interior surfaces each including a plurality of engagement surfaces configured to engage a plurality of surfaces of a post of the intervertebral implant, the inner member ...

FLEXIBLE STENT

The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness. 146-. (canceled)47. An intravascular stent , comprising:a plurality of undulating rings including a proximal end ring, a distal end ring, and a plurality of center section rings therebetween, each ring having nine peaks on a proximal end of the ring and nine valleys on a distal end of the ring and adjacent rings are circumferentially offset from each other;a plurality of links connecting a valley of one ring to a peak of an adjacent ring, each of the plurality of links extending at an angle relative to a longitudinal axis of the stent;the proximal end ring is connected to an adjacent one of the center section rings by only two links;each pair of adjacent center section rings being connected by three links extending from a peak on the proximal end of one center section ring to an adjacent valley on the distal end of an adjacent center section ring; andthe distal end ring is connected to an adjacent one of the center section rings by only two links.48. The intravascular stent of claim 47 , wherein the angle formed between the links and the longitudinal axis of the stent is identical for all links.49. The intravascular stent of claim 48 , wherein the angle formed between the links and the longitudinal axis of the stent is at the same orientation for all links.50. The intravascular stent of claim 47 , wherein the links have a width that is greater than a ...

Laser-Produced Porous Surface

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. 1. (canceled)2: An orthopedic implant comprising:porous metallic first and second structures, at least a portion of either one or both of the first and second structures being defined by polygonal porous cells; andan intermediate structure attached to and located between the first and the second structures, the intermediate structure having a different porosity than the first and the second structures.3: The orthopedic implant of claim 2 , wherein the first structure includes pores having a pore size that exceeds 80 μm in diameter.4: The orthopedic implant of claim 3 , wherein the pores of the first structure have a maximum pore size that is less than 800 μm in diameter.5: The orthopedic implant of claim 3 , wherein the second structure includes pores having a pore size that exceeds 80 μm in diameter claim 3 , and wherein the pores of the first and the second structures have a maximum pore size that is less than 400 μm in diameter.6: The orthopedic implant of claim 2 , wherein the cells of the first structure have an irregular shape.7: The orthopedic implant of claim 2 , wherein the intermediate structure is directly attached to the first and the second structures.8: The orthopedic implant of claim 2 , wherein the intermediate structure is substantially solid.9: The orthopedic implant of claim 2 , further comprising an opening passing ...

INTRA-ARTICULAR JOINT REPLACEMENT

A method of forming a shoulder prosthesis includes resecting an end portion of a humerus to form a resected end of the humerus and a resected portion separated from the humerus, the resected portion having an outer convex surface and an inner surface. The inner surface of the resected portion is processed to include a concave articular surface. The outer convex surface of the resected portion is implanted in the resected end of the humerus. An implant having a convex articular surface is secured to a glenoid. The concave articular surface of the resected portion is articulated with the convex articular surface of the implant. 113.-. (canceled)15. The method of claim 14 , further comprising articulating the concave articular surface of the reinforcing structure directly with the convex articular surface of the first implant.16. The method of claim 14 , further comprising positioning a convex surface of a second implant adjacent the concave articular surface claim 14 , such that the reinforcing structure is disposed between the humerus and the second implant.17. The method of claim 14 , further comprising selecting an implant formed of pyrolytic carbon.18. The method of claim 14 , further comprising selecting a reinforcing structure formed of material including at least one of: a porous matrix claim 14 , a scaffold claim 14 , a reticulated bioceramic framework claim 14 , a structured porous tantalum claim 14 , a synthetic fiber mesh claim 14 , and reinforcing fibers.19. The method of claim 14 , further comprising selecting a reinforcing structure comprising a resorbable polymer.20. The method of claim 19 , wherein the resorbable polymer comprises at least one of: polylactic acid polymers and polyglycolic acid polymers.21. The method of claim 14 , further comprising selecting a reinforcing structure comprising a non-resorbable polymer.22. The method of claim 21 , wherein the non-resorbable polymer comprises at least one of polyolefins claim 21 , polyesters claim 21 , ...

Bioresorbable Inflatable Devices, Incision Tool And Methods For Tissue Expansion And Tissue Regeneration

Bioresorbable inflatable devices and tunnel incision tool and methods for treating and enlarging a tissue or an organ or a tube or a vessel or a cavity. The device is composed of a hollow expanding pouch made of a resorbable material that can be attached to a filling element. The pouch can be filled with a biocompatible materials, one or more times in few days interval, after the insertion of the device. While filling the pouch every few days the tissue expands and the filling material if it is bioactive start to function. The tunnel incision tool composed of a little blade that emerges from the surface of the tool in order to make shallow incisions in the surrounding tissue therefore enabling easy expansion of the tissue. This device and method can be used for example for: horizontal and vertical bone augmentation in the jaws and the tunnel incision tool is used to make shallow incisions in the periosteum when using the tunnel technique, sinus augmentation when the device is placed beneath the Schneiderian tissue, vessels widening if the pouch become a stent etc. 1. A device including a cannula , an expandable inflatable container and a filling material for displacing the Schneiderian membrane from the floor of the maxillary sinus in the process of dental implant surgery to treat normal human patients in need for enlargement of the height of the human maxillary alveolar ridge to enable the insertion of a conventional screwed dental implant for normal human patients , said device comprising:a cannula sized for insertion through an opening in said human maxillary alveolar ridge towards said Schneiderian membrane while said opening being sized so said conventional screwed dental implant will engage all the bony walls of said opening, said device further includes an expandable inflatable container, connector and an extension tube, said connector comprising a proximal portion and, a distal portion, said distal portion includes a distal tube, said distal tube of said ...

Intervertebral Implant With Blades For Connecting To Adjacent Vertebral Bodies

An intervertebral implant for insertion into an intervertebral disc space between adjacent vertebral bodies or between two bone portions. The implant includes a spacer portion, a plate portion operatively coupled to the spacer portion and one or more blades for securing the implant to the adjacent vertebral bodies. The blades preferably include superior and inferior cylindrical pins for engaging the adjacent vertebral bodies. The implant may be configured to be inserted via a direct lateral trans-psoas approach. Alternatively, the implant may be configured for insertion via an anterior approach. 1. An intervertebral implant for insertion into an intervertebral disc space between first and second vertebral bodies , the implant comprising:a spacer portion sized to be inserted into the intervertebral disc space, the spacer portion having a top surface configured to face the first vertebral body, and a bottom surface configured to face the second vertebral body, the top surface spaced from the bottom surface in a superior direction; anda blade element configured to be supported by the spacer portion, the blade element including a superior portion that extends superiorly relative to the spacer portion to engage the first vertebral body to secure the implant to the first vertebral body when the blade element is supported by the spacer portion.2. The intervertebral implant of claim 1 , wherein the blade element extends superiorly from the spacer portion.3. The intervertebral implant of claim 1 , wherein the spacer portion supports a blade receiving channel claim 1 , and the blade element includes an intermediate portion configured to be received within the blade receiving channel to secure the blade element relative to the spacer portion claim 1 , and wherein the superior portion extends from the intermediate portion.4. The intervertebral implant of claim 3 , wherein the blade element includes an inferior portion that extends from the intermediate portion along a direction ...

LATERAL INSERTION SPINAL IMPLANT

The present disclosure relates to a spinal implant. The spinal implant may be used for lateral insertion into an intervertebral disc space. For example, the spinal implant may include a spacer body to which a plate is fixed. The intervertebral spacer body may include a pair of opposite sides having a pyramid-shaped teeth to fuse to bone. The plate defines at least one upper and lower borehole that each receives a screw. Each screw attaches the plate to a vertebral body between which the intervertebral spacer body is inserted. The boreholes may include locking threads that are adapted to lock the screws into place by engaging complementary locking threads of head of the screw. 1117-. (canceled)118. A spinal implant for insertion into an invertebral disc space between a superior and inferior vertebral bodies , the spinal implant comprising:a spacer body having a proximal base portion, a distal end, a first side wall and an opposing second side wall; anda plate having a first side, a second side, a front surface, a rear surface, the plate forming an upper borehole and a lower borehole that are respectively positioned about a lateral center plane of the plate, the upper borehole and the lower borehole adapted to each receive a bone screw to secure the spinal implant within the invertebral disc space,wherein the first side of the plate and the first side wall of the spacer body are sized and configured for location at a posterior position with respect to the invertebral disc space and the second side of the plate and the second side wall of the spacer body are sized and configured for location at an anterior position with respect to the invertebral disc space.119. The spinal implant of claim 118 ,wherein the upper borehole includes a posterior upper borehole formed proximate to the first side, and an anterior upper borehole formed proximate to the second side, the posterior and anterior upper boreholes positioned opposite each other about the vertical center plane of the ...

ABSORBABLE VASCULAR FILTER

An absorbable vascular filter is disclosed for deployment within a vessel for temporary filtering of body fluids. A preferred embodiment is the placement of such absorbable vascular filter within the inferior vena cava (IVC) to filter emboli for the prevention of pulmonary embolism for a limited duration in time. Once protection from PE is complete, the filter is sequentially biodegraded according to a planned schedule determined by the absorption properties of the filter components. Hence the temporary absorbable vascular filter obviates the long term complications of permanent IVC filters such as increased deep vein thrombosis, while also circumventing the removal requirement of metal retrievable IVC filters. 1. An absorbable filter comprising:a circumferential element attached to a vessel; anda plurality of absorbable capture elements affixed to the circumferential element for capturing unwanted substances flowing in a vessel for a limited period of time.2. A device as set forth in claim 1 , wherein more than one absorbable capture element has both ends attached to the circumferential element to form a loop claim 1 , such that collectively the loops form a capture basket.3. A device as set forth in claim 1 , wherein more than one absorbable capture element has both ends attached to the circumferential element to form a loop claim 1 , and at least one capture element serves to integrate the loops to form a capture basket.4. A device as set forth in claim 1 , wherein more than one absorbable capture element has both ends attached to the circumferential element to form a loop that does not extend to the radial center of the circumferential element claim 1 , and at least one capture element serves to integrate the loops to form a capture basket.5. A device as set forth in claim 1 , wherein a subset of the absorbable capture elements are chosen to sequentially degrade in time to avoid simultaneous bulk release of capture elements in the vessel over time.6. A device as ...

UNIVERSAL PROSTHETIC HEAD FOR HIP PROSTHESIS

A prosthetic head with a body having the shape of a cup shaped as a hemispherical cap provided with an external surface, an internal surface and a lower edge shaped as a circumference, fixing means to fix the prosthetic head to the cotyle, and a projection abutting from the internal surface of the prosthetic head in such manner to define an annular step, and a truncated-conical portion obtained in the internal surface of the body of the prosthetic head starting from the lower edge of the prosthetic head, the truncated-conical portion of the prosthetic head being suitable for being coupled in conical coupling mode with a truncated conical part of an insert intended to be inserted in the prosthetic head. he projection is shaped as a portion of a spherical cap. 1. Prosthetic head for hip prosthesis , said prosthetic head being intended to be fixed to a cotyle , said prosthetic head comprising:a body having the shape of a cup shaped as a hemispherical cap and provided with an external surface, an internal surface and a lower edge shaped as a circumference;fixing means to fix the prosthetic head to the cotyle, anda projection abutting from the internal surface of the prosthetic head in such manner to define an annular step, a truncated-conical portion obtained in the internal surface of the body of the prosthetic head starting from said lower edge of the prosthetic head, said truncated-conical portion of the prosthetic head being suitable for being coupled in conical coupling mode with a truncated-conical portion of an insert intended to be inserted in the prosthetic headcharacterized in thatsaid projection is shaped as a portion of a spherical cap.2. The prosthetic head of claim 1 , wherein said truncated-conical portion of the prosthetic head extends from the lower edge of the prosthetic head to a latitude comprised between 20° and 30°.3. The prosthetic head of claim 1 , wherein said truncated-conical portion of the prosthetic head has a coning angle (α) comprised ...

EXPANDABLE SUPPORT DEVICE AND METHOD OF USE

An expandable support device for tissue repair is disclosed. The device can be used to repair hard or soft tissue, such as bone or vertebral discs. A method of repairing tissue is also disclosed. The device and method can be used to treat compression fractures. The compression fractures can be in the spine. The device can be deployed by compressing the device longitudinally resulting in radial expansion. 2. The device of claim 1 , wherein the first configuration is a height-contracted configuration claim 1 , and wherein the second configuration is a height-expanded configuration.3. The device of claim 1 , wherein the first component inner surface and the body first surface have a directionally locking interface4. The device of claim 3 , wherein the first component inner surface has first directional teeth claim 3 , and wherein the body first surface has second directional teeth claim 3 , and wherein the directionally locking interface comprises the first directional teeth and the second directional teeth.5. The device of claim 3 , wherein the second component inner surface and the body second surface have a directionally locking interface.6. The device of claim 1 , wherein the body first surface and the body second surface are flat and straight.7. The device of claim 1 , further comprising a compressive strength element extending longitudinally past the remainder of the device and removably attached to the remainder of the device.8. The device of claim 7 , wherein the compressive strength element comprises a band.9. The device of claim 7 , wherein the compressive strength element comprises a locking element inserted into a longitudinal port in the device.10. The device of claim 1 , wherein the device has a longitudinal channel having a helical thread.11. The device of claim 1 , further comprising a motion-limiting buttress.12. The device of claim 11 , wherein the buttress extends from a longitudinally terminal end of the first external component claim 11 , and ...