ПРОТЕЗ ТАЗОБЕДРЕННОГО СУСТАВА ДЛЯ ЗАКРЕПЛЕНИЯ В БЕДРЕННОЙ КОСТИ ПАЦИЕНТА

Изобретение относится к медицине. Протез тазобедренного сустава для закрепления в бедренной кости пациента содержит соединительную часть, выполненную с возможностью соединения с контактной частью протеза, по меньшей мере две расширяющиеся части, имеющие контактную поверхность для контакта с костью и стабилизирующий элемент, имеющий охватывающую часть, выполненную с возможностью ее расположения в контакте с наружной поверхностью бедренной кости, и простирающийся вдоль нее. Расширяющиеся части выполнены с возможностью вставки в бедренную кость пациента и возможностью расширения в этой бедренной кости таким образом, что указанная контактная поверхность для контакта с костью расположена в контакте с внутренней частью бедренной кости для прикрепления указанного медицинского устройства к бедренной кортикальной кости. Изобретение обеспечивает достижение прочного закрепления без прохождения или проникновения сквозь кость или без использования костного цемента. 15 з.п. ф-лы, 16 ил.

КРЕПЕЖНОЕ УСТРОЙСТВО И СИСТЕМА ДЛЯ МЕЖПОЗВОНКОВОГО ИМПЛАНТА, МЕЖПОЗВОНКОВЫЙ ИМПЛАНТ И ИНСТРУМЕНТ ДЛЯ ЕГО ИМПЛАНТАЦИИ

Группа изобретений относится к медицине. Устройство для закрепления по меньшей мере одного межпозвонкового импланта по меньшей мере в одном позвонке предназначено для вставки со стороны периферийной области позвоночника через канал, проходящий по меньшей мере через часть импланта. Устройство имеет корпус, содержащий по меньшей мере одну жесткую пластину, удлиненную вдоль продольной оси (L), проходящей между передним концом и задним концом, и выполненную таким образом, что ее передний конец входит по меньшей мере в один позвонок, а ее задний конец остается в канале импланта, что обеспечивает удержание импланта вплотную к указанному позвонку. Пластина содержит по меньшей мере одно щелевое отверстие, ориентированное, по существу, параллельно ее продольной оси (L) и разделяющее по меньшей мере заднюю часть пластины на две ветви. Щелевое отверстие выполнено относительно задней части пластины с обеспечением возможности сближения двух ветвей вместе, когда к ним приложено давление. Межпозвонковый ...

ХИРУРГИЧЕСКИЕ СИСТЕМЫ И СПОСОБЫ ИМПЛАНТИРОВАНИЯ ИМПЛАНТОВ ИЗМЕНЯЕМОЙ ФОРМЫ

... 1. Имплант, содержащий:по меньшей мере одну последовательность сегментов, при этом упомянутая последовательность содержит по меньшей мере два сегмента, упомянутые сегменты соединены между собой функциональными шарнирами, упомянутая последовательность может принимать выпрямленное или немного искривленное состояние введения для введения в тело пациента, и упомянутая последовательность выполнена с возможностью изгибания в полностью изогнутое состояние, по меньшей мере частично определенное примыканием упорных элементов соседних упомянутых сегментов; ипричем упомянутая по меньшей мере одна последовательность представляет собой по меньшей мере часть петлеобразной конструкции, которая может принимать сложенное сплюснутое состояние с упомянутой по меньшей мере одной последовательностью в упомянутом состоянии введения, и изгибание упомянутой по меньшей мере одной последовательности до упомянутого полностью изогнутого состояния образует раскрытое состояние упомянутой петлеобразной конструкции, в ...

Фиксатор позвоночника

Изобретение относится к медицинской технике. Для предупреждения развития псевдоартроза и повреждений нервно-сосудистых образований фиксатор содержит опору 1 в виде клина с зубцами 2 и элементы фиксации в виде соединительной пластинки 3 с зубцами 4. В прорези опоры 1 размещены подпружиненные упоры 6. Фиксатор .снабжен толкателями 9, 10 и П которые размещены центрально между упорами 6 с возможностью взаимодействия с пластинчатыми пружинами. В центре соединительной пластинки 3 выполнено отверстие 13, в котором установлены соосно расположенные винты толкателей 9, 10 и 11. 4 ил.

Femurkomponente für Hüftgelenkersatz

Implantat

Ein Implantat (13) zum Ersatz bzw. Ergänzung von Knochenteilen hat einen Implantatkörper (21) und einen Übergangsbereich (22), der eine biokompatible Formgedächtnislegierung (FGL) mit einer Struktur-Umwandlungstemperatur in einem dem Körper zuträglichen Temperaturbereich, z.B. im Bereich der Körpertemperatur, aufweist und dabei eine Ausdehnung erfährt. Die Formgedächtnislegierung (FGL) kann eine Nickel-Titan-Legierung sein. Ferner kann der Übergangsbereich (22) elastisch und offenporig sein, indem im Übergangsbereich geometrische Strukturen nach Art eines Raumgitters ausgebildet sind, die in sich bzw. zwischen sich die Poren enthalten. Vorteilhaft kann der Übergangsbereich (22) durch selektives Laserschmelzen oder Electron-Beam-Melting hergestellt sein.

INTRAMEDULLAERER SCHAFT EINER SCHRAUBBAREN PROTHESE.

GERÄT ZUR REPARATUR VON KNORPELMATERIAL

Ventral intervertebral implant

In a ventral intervertebral implant for insertion, for example, between two vertebral bodies of a spinal column, having an upper and a lower contact surface and at least one anchoring pin which protrudes from at least one contact surface, optimum primary fixation is achieved in that the at least one anchoring pin is arranged so as to be retractable, and the implant has a mechanism for extending the anchoring pin. ...

Gelenkprothese

The invention relates to a joint prosthesis with a shaft section insertable in the upper thigh bone and forming the distal region of the joint prosthesis and a joint connector which can be secured to the proximal end of the shaft section, in which the axes of the shaft section and joint connector enclose an obtuse angle. The joint connector (3.1, 3.2) can be at least partly inserted into a through channel at the proximal end of the shaft section angled in relation to the shaft axis (11). The inserted section has securing means acting inside the channel which secure the joint connector in position.

Surgical closure for closing trepanned hole in skull capsule

The retention projection is formed as a retention rib (34) running in a peripheral direction or as an outer thread. The closure head (30) forms a stop surface (28) extending over the outside of the closure shaft (26) for limiting the insertion movement of the closure (22) in the trepanation hole (14). The closure shaft may have a radially running through passage aperture and an elastically deformable area in a radial direction. It may be socket-shaped and the closure (22) has a longitudinal slot (35) running in an axial direction starting from one end of it.

An instrument for positioning a cup component of an orthopaedic joint prosthesis

Cement restrictor for a medullary canal

An expandable cement restrictor comprises an inner member (2) nested within an outer member (1). The members (1, 2) are each formed from a plurality of longitudinal segments (3, 4) which in a non-expanded state are positioned very close to if not touching one another. The restrictor further comprises an expansion body (5) which is positionable within the inner member (2). The restrictor is placed in a medullary canal, and once it has been located in an appropriate position, the expansion body is pulled into the nested inner and outer members (1, 2) to cause the expandable body to dig into the bone of the canal and hold the restrictor in position. A lug on the inner member engages a recess in the outer member to prevent relative rotation of the members. When expanded the longitudinal segments (3, 4) of the inner and outer members overlap circumferentially. ...

Cotyloid prosthesis

Cotyloid prosthesis comprises an insert holding the femoral head, the insert being placed in a cup (100). The cup has a peripheral groove (103) delimited by an edge (104) to hold a retractable belt (200). This belt (200) fitted with teeth (201) is attached by its two ends which are provisionally drawn together. These two ends are fitted with a hole (202, 203) in which is engaged a U-shaped pin (300) which is also engaged in two corresponding holes (105, 106) made in the edge (104). Preferably the belt (200) is also attached in the groove (103) at a diametrically opposed point by one or two pins (401, 402) placed in the holes (107, 108) of the edge (104) and the holes (204, 205) of the belt.

Interbody device insertion systems and methods

Provided is a system for implanting an interbody device into a disc space located between a first and second vertebra includes a guide frame including a guide member having an opening. The system further includes an implant trial including an elongated body and a base plate coupled to the elongated body. The elongated body of the implant trial is releasably coupled to the guide member of the guide frame during use such that the opening guides longitudinal movement of the implant trial relative to the guide frame. The system still further includes a dilator operatively coupled to the elongated body during use for distracting the disc space. The system still further includes an insertion instrument including an elongated body and an insertion member coupled to the elongated body. The elongated body of the insertion instrument is releasably coupled to the guide member of the guide frame during use such that the opening guides longitudinal movement of the insertion instrument relative to the ...

Expandable intramedullary sonanis cement restrictor (EISCR)

Spine fusion implant

Unicompartmental knee prosthesis

LORDOTI SPONDYLODESEIMPLANTATE

DUCTILE INTERMEDIATE EDDY PROSTHESIS

ANCHORAGE MEANS FOR INTERMEDIATE EDDY IMPLANTS

STENT FOR A BANDSCHEIBENANNULUS

EXPAND-CASH VOLUME DISK IMPLANT

IN-SITU MANUFACTURE INTERVERTEBRALE FUSION DEVICE

EXPAND-CASH INTERMEDIATE EDDY IMPLANT AND ARTICULATED ONE INTRODUCTION DEVICE

IMPLANT FOR USING BETWEEN TWO EDDY BODIES OF THE SPINAL COLUMN

PROSTHESIS ATTACHMENT WITH MECHANICALLY PRESSING TOGETHER BIOCOMPATIBLE GRAINS

EXPAND-CASH INTERMEDIATE EDDY IMPLANT

EQUIPMENT TO THE REPAIR OF CARTILAGE MATERIAL

KOCHER ZUR AUFNAHME DES SCHAFTES EINES KNOCHENIMPLANTATES

ANNOUNCEMENT AND NAVIGATION SYSTEM FOR THE GUIDANCE OF A MEDICAL DEVICE TO A CERTAIN GOAL

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

HUMAN INTERMEDIATE EDDY PROSTHESIS

Shaft for a hip joint prosthesis

Ein Schaft (1) für eine Hüftgelenksprothese mit einer durchgehenden Längsbohrung (5) vom proximalen zum distalen Ende weist eine konvexe Krümmung der lateralen Seite (3) im proximalen Abschnitt des Schaftes (1) auf, die im Wesentlichen komplementär zum Verlauf der proximalen, lateralen Kortikalis eines Oberschenkelknochens, in den der Schaft (1) einzusetzen ist, ausgebildet ist. Die konkave Krümmung der medialen Seite (4) im proximalen Abschnitt des Schaftes (1) ist im Wesentlichen komplementär zum Verlauf des proximalen, medialen Kalkarknochenabschnitt des Oberschenkelknochens ausgebildet. Zur Anpassung an die Größe des Oberschenkels kann der Schaft (1) in unterschiedlichen Größen bereitgestellt werden. Ein distaler Abschnitt (7) des Schaftes (1) ist gerade ausgebildet, und in der Längsbohrung (5) ist ein Stab (2) mit einer aus dem distalen Ende der Längsbohrung (5) hervorragenden Spitze (8) aufgenommen.

SPINAL COLUMN STABILIZATION ARRANGEMENT FOR ARTHRODESE WITH AN IMPACT CAGE ELEMENT AND SERVOMECHANISM TO THEIR IMPLANTIERUNG

Shaft for a hip joint prosthesis

Ein Schaft (1) für eine Hüftgelenksprothese mit einer durchgehenden Längsbohrung (5) vom proximalen zum distalen Ende weist eine konvexe Krümmung der lateralen Seite (3) im proximalen Abschnitt des Schaftes (1) auf, die im Wesentlichen komplementär zum Verlauf der proximalen, lateralen Kortikalis eines Oberschenkelknochens, in den der Schaft (1) einzusetzen ist, ausgebildet ist. Die konkave Krümmung der medialen Seite (4) im proximalen Abschnitt des Schaftes (1) ist im Wesentlichen komplementär zum Verlauf des proximalen, medialen Kalkarknochenabschnitt des Oberschenkelknochens ausgebildet. Zur Anpassung an die Größe des Oberschenkels kann der Schaft (1) in unterschiedlichen Größen bereitgestellt werden. Ein distaler Abschnitt (7) des Schaftes (1) ist gerade ausgebildet, und in der Längsbohrung (5) ist ein Stab (2) mit einer aus dem distalen Ende der Längsbohrung (5) hervorragenden Spitze (8) aufgenommen.

DIGESTER FOR THE ADMISSION OF THE SHANK OF A BONE IMPLANT

PERCUTANEOUS, INTERVERTEBRALE DISK NUCLEAR PROSTHESIS AS WELL AS PROCEDURE FOR THE PRODUCTION

EXPAND-CASH INTERMEDIATE EDDY SPACER PIECES

INSTRUMENT FOR THE POSITIONING OF A PAN COMPONENT OF AN ORTHOPEDIC JOINT PROSTHESIS

FEMURKOMPONENTE FOR HIP JOINT REPLACEMENT

INTRAMEDULLAERE FEMURPROTHESE WITH PREFORMED COVERING.

HUEFTGELENKSPFANNE FOR CEMENT-FREE IMPLANTATION INTO THE ACETABULUM OF THE HUEFTBEINES.

INTRAMEDULLAERER SHANK OF A SCREWABLE PROSTHESIS.

SELFRETIGHTENING PROSTHESIS ATTACHMENT.

OSTEOSYNTHETI DEVICE

SURGICAL IMPLANT AND CUTLERY IN ADDITION

FEMURKOPFPROTHESE.

DUEBELARTIGE ANCHORAGE FOR A CEMENT-FREE ADJUSTMENT OF BONE IMPLANTS.

FROM AN INTERNAL PFANNENKOERPER AND AN OUTER SHELL EXISTING ENDOPROSTHESIS FUER A HUEFTGELENKSPFANNE.

DEVICE FOR THE ATTACHMENT OF AN EMPLOYMENT FROM PLASTIC

EXPAND-CASH IMPLANT AND SYSTEM FOR ATTACHMENT

DEVICE TO SPONDYLODESE WITH IMPLANTIERTEN PARTS

PLUG FOR FILLING BONE DEFECTS

SPREADING IMPLANT FOR ARRANGEMENT BETWEEN EDDIES OF THE SPINAL COLUMN

JOINT PROSTHESIS

EXPAND-CASH INTERMEDIATE EDDY SPACER PIECE

INTER+SOMATIC SPINAL COLUMN IMPLANT WITH ANCHORAGE ELEMENTS

Method for making an implant, notably a vertebral or intervertebral implant, and implant obtained by this method

The implant (1) comprising at least two assembled components, at least a first component (3) of which is intended to be mobile with respect to at least one second component (2). The method comprises the steps consisting in: – designing the implant (1) in such a way that the said second component (2) at least partially envelops the said first component (3) and that at least one connecting bridge (4) connects the said first component to the said second component, each bridge (4) having a cross section such that it is frangible; – creating the implant (1) using a method referred to as 3-D printing, consisting in depositing on a platen a layer of powdered fusible material, in causing the particles of this layer of powder to fuse at locations corresponding to the shape which, at the level of this layer, the said first component (3) and/or the said second component (2) and/or the said at least one bridge (4) has/have; – in repeating these operations until the implant (1) is fully constructed, ...

Transversely expandable minimally invasive intervertebral cage and insertion and extraction device

Disclosed herein are systems and methods for intervertebral body fusion that provide more robust support within the disc space. Intervertebral body fusion devices can have a unitary monolithic body including a plurality of body segments interconnected with each other by flexure members. Devices can be configured to be inserted through an opening in a compressed configuration and then expanded within the disc space to an expanded configuration. In the expanded configuration, devices can have a greater mediolateral or transverse to the disc space footprint. This wider footprint provides greater support for the vertebrae relative to the size of the opening through which the device is inserted. Insertion devices for inserting, expanding and extracting such implants are also disclosed.

Inbone talar dome with expandable flanges

A joint replacement implant is disclosed. The implant includes a body having a bone contact surface and an articulation surface. An expandable stem extends longitudinally from the bone contact surface. The expandable stem includes a plurality of flanges. The plurality of flanges are expandable from a first diameter to a second diameter to anchor the implant to a bone.

Methods and devices for stenting or tamping a fractured vertebral body

Intravertebral bone stents and tamps made from shape memory metal ...

Posterior spinal device and method

PROSTHETIC INTRAMEDULLARY FEMORAL PROSTHESIS WITH PREFORMED SHEATH

Method and apparatus for the treatment of the intervertebral disc annulus

Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments

INTERVERTEBRAL DISK PROSTHESIS

Transpedicular intervertebral disk access methods and devices

Methods and devices for treating diseases and conditions that change the spacial relationship between the vertebral bodies and the intervertebral disks, or that cause instability of the vertebral column, or both, and a method and devices that allow the surgeon to access the intervertebral space to restore a more normal three-dimensional configuration of the space, with or without additionally fusing two adjacent vertebrae.

Minimally invasive expandable contained vertebral implant and method

Embodiments of the invention include expandable, implantable devices and methods. Devices expand linearly within the volume of a membrane and laterally to provide secure fixation between or among anatomical structures. In some embodiments, an implant replaces one or more vertebral bodies, or portions of vertebral bodies, of the spine.

Spinal disc annulus reconstruction method and spinal disc annulus stent

Cco, C ?1 There is provided a method of treating a defect in the annulus fibrosus of an intervertebral disc. The method comprises providing a device delivery tool; providing a device, the device having a first anchor and a second anchor, said first and second anchors connected by at least one connecting member; and piercing the intervertebral disc with said device delivery tool at a first location. The first anchor is disposed into intervertebral disc tissue at the first location. The intervertebral disc is pierced with said device delivery tool at a second location at which the second anchor is disposed into intervertebral disc tissue. Tension is applied to one of said at least one said connecting members to foreshorten one of said at least one connecting members between the first and second anchors.

Surgical systems for implanting expandable implants

Deflectable implants, systems and methods for implanting deflectable implants are disclosed. The deflectable implant (100) includes at least one sequence of segments (102), the sequence includes at least two segments (102), the segments (102) being interconnected at effective hinges (107), the sequence assuming a straightened or low curvature insertion state for insertion into the body, the sequence being deflectable to a fully deflected state defined by abutment of abutment features of adjacent of the segments (102). The deflectable implant (100) includes further a linkage mechanically linked to at least part of at least one of the sequences of segments (102) for deflecting the at least one sequence of segments (102) from the insertion state towards the fully deflected state wherein the at least one sequence is at least part of a loop structure assuming a low profile folded state with the at least one sequence towards the fully deflected state generates an open state of the loop structure ...

Implant components and methods

Systems, devices, and methods are provided for orthopedic implants. The implants may include a base member, such as an acetabular shell or an augment, that is configured to couple with an augment, flange cup, mounting member, or any other suitable orthopedic attachment. A cup member that fits within an implantable shell and has mounting members that anchor an implant to a patient's bone or soft tissue may be provided. The cup member may fit within the shell and have an exterior surface configured to mate with a corresponding interior surface of the shell to couple the cup member to the shell. The mounting members may be integral with the cup member, or may be adjustable to provide flexibility to accommodate a specific implant or patient anatomy.

Implantable lubrication device and method of treating a human or mammal patient by means of the device

A lubrication device for lubricating a joint of a human or mammal patient, which is entirely implantable in a patient's body, comprises a reservoir for storing a lubricating flu- id and a fluid connection for introducing the lubricating fluid into the joint when the de- vice is implanted in the patient's body. Further, the fluid connection comprises a fluid connection device connecting the reservoir with the joint such that a lubricating fluid flow is established from the reservoir into the joint. The fluid connection comprises either an infusion needle adapted to be intermittently placed into the joint for injecting the lubricating fluid, or a tube adapted to be permanently placed into the joint for continuously injecting the lubricating fluid.

STEADY STALK FOR PROSTHESES

Collapsible and expandable interbody fusion device

Radially expanding interbody spinal fusion implants and instrumentation for insertion thereof

Hip joint device and method

A hip joint prosthesis adapted to be implanted in a hip joint of a human patient is provided. The hip joint prosthesis comprises a first area and a second area, and wherein said first area comprises a first material adapted to be elastic and said second area comprises a second material adapted to be elastic, and wherein said first material is adapted to be more elastic than said second material. (FIG. 6) Fig. 6 A A!

Hip joint device and method

A hip joint prosthesis adapted to be implanted in a hip joint of a human patient is provided. The hip joint prosthesis comprises a first area and a second area, and wherein said first area comprises a first material adapted to be elastic and said second area comprises a second material adapted to be elastic, and wherein said first material is adapted to be more elastic than said second material. (FIG. 6) Fig. 6 A A!

Hip joint device and method

Abstract A medical device for implantation in a hip joint of a human patient is provided. The natural hip joint having a ball shaped caput femur (5) as the proximal part of the femoral bone (7) with a convex hip joint surface towards the centre of the hip joint and a bowl shaped acetabulum (11) as part of the pelvic bone (9) with a concave hip joint surface towards the centre of the hip joint. The medical device comprising; an artificial caput femur (112), comprising a convex surface towards the centre of the hip joint. The artificial convex caput femur is adapted to, when implanted: be fixated to the pelvic bone of the human patient, and be in movable connection with an artificial acetabulum surface (1340) fixated to the femoral bone of the patient, thereby forming a ball and socket joint. (Fig. 16i) Fig. 16e Fig.16f 1322 1323 1322 1321 1321 13 20 ---1320 1 3 2 1 12 1 1 Fig 16g 1323 1322 1321 Fig. 16h N -- 1320 1314 1334 -1331 112 -- 116, 6- ~ 9 Fig. 16i 1340 s.> 112, 9 ...

Articulating interbody cage and methods thereof

Provided are devices, systems and methods related to articulating interbody cages. The device includes a caudal plate configured to be positioned adjacent a first vertebral endplate within an intervertebral disc space, a cephalad plate configured to be positioned adjacent a second vertebral endplate within the intervertebral disc space; and a first and second sidewall each rotatably coupled to both the caudal and cephalad plates. At least one of the first and second sidewalls includes a hinge element restricted from achieving an on-center or over-center rotational position around the hinge element upon dimensional expansion of the device in at least a first dimension.

Implant components and methods

Subject: Systems, devices, and methods are provided for orthopedic implants. The implants may include a base member, such as an acetabular shell or an augment, that is configured to couple with an augment, flange cup, mounting member, or any other suitable orthopedic attachment. Any of the implantable components may be include one or more porous surfaces. The porous surface may be textured by protrusions that connect to and extend from the surface. The sizes and concentration of the protrusions may be varied for specific applications to accommodate different implants and patient anatomies. A porous implant may also include one or more internal or external solid portions that strengthen the implant. 00000000o@5, PC C>g% 63 g~ 0 c0 0 00000 0 0 () 0 00 o o: C 00 (00000C)000 o0 00000 00 ~0 o 0 o-c 00 0 0 00 00Ooo0 0000n0 0 D o 0 0 1502 0Qo ODOoo o 0 0 go00( ~0OOC 0 0o 0 10 P oDoCo o90 o oo 0000 0 0 000 00S0 o 00 f 0o%0&%0 o 0000000 0 oa 5 oID00() 0 0000000o 0 SVI1cczio o 0 000 0 1502 00 Q60 ...

Expandable spinal implant

The present application relates to an expandable spinal implant ( 1 ) comprising two elongated implant members (20, 30). The implant members (20, 30) are rotatably coupled to a central base portion (10) and comprise a first end with an axis of rotation and circumferentially arranged gear teeth (23, 33). The gear teeth (23) of the first elongated implant member (20) is interlocked into said gear teeth (33) of the second elongated implant member (30).

EXPANDABLE SPINAL IMPLANTS

A spinal implant has a proximal region and a distal region, and includes an upper body and a lower body each having inner surfaces disposed in opposed relation relative to each other. A proximal adjustment assembly is disposed between the upper and lower bodies at the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies at the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other to change a vertical height of at least one of the proximal region or the distal region of the spinal implant. 282a 282 210 276 280c 200 254c 200 210 280b 253 276 200b ...

Expandable spinal interbody spacer and method of use

An expandable spinal implant configured for positioning within a space between adjacent vertebral bodies includes an upper body, a lower body, a ratchet mechanism, and a plurality of bone screws. The upper body and lower body are pivotably affixed at a first end and are capable of movement relative to each other. The ratchet mechanism is slidably disposed on one of the upper and lower body and is capable of engaging the opposite one of the upper and lower body thereby permitting movement of the upper and lower body relative to each other in a first direction, but not in a second direction. An insertion instrument capable of being attached to the expandable spinal instrument and a method of performing spinal surgery is also disclosed.

Fusion cage with in-line single piece fixation

Methods for securing a intervertebral cage to one or more levels of the spine with fixation. The fixation, which is typically a staple, is intended to be driven perpendicular to the proximal face of the cage and in-line with the inserter. After the cage is placed and positioned according to surgeon preference, a single piece fixation clip is then deployed and fixed in a manner that produces a zero-profile device.

Expandable implant and insertion tool

An expandable implant includes a body portion, a carriage portion, a deployment assembly, and an expandable portion. The deployment assembly and the expandable portion are attached to the carriage portion, and portions of the carriage portion are moveable out of and into the body portion. When the expandable implant is inserted into a disc space, the expandable portion is expandable to push the upper vertebral body and the lower vertebral body away from one another.

INBONE TALAR DOME WITH EXPANDABLE FLANGES

A joint replacement implant is disclosed. The implant includes a body having a bone contact surface and an articulation surface. An expandable stem extends longitudinally from the bone contact surface. The expandable stem includes a plurality of flanges. The plurality of flanges are expandable from a first diameter to a second diameter to anchor the implant to a bone.

Osteosynthesis device

UNCINATE JOINT STABILIZERS AND ASSOCIATED SYSTEMS AND METHOS

A method for stabilizing a cervical spine segment is disclosed. The method comprises, implanting a respective uncinate joint stabilizer into each uncinate joint of the cervical spine segment to stabilize the uncinate joints and thereby stabilize the cervical spine segment. Each uncinate joint stabilizer is elongated along a lengthwise dimension and includes a generally cylindrical portion with a cylinder axis in the lengthwise dimension, and it has threads for threading the uncinate joint stabilizer into the respective uncinate joint. The threads are interrupted by one or more fenestrations that are configured to accommodate one or more materials selected from the group consisting of bone graft material, bone growth, and tissue displaced from the respective uncinate joint by the uncinate joint stabilizer. Each uncinate joint stabilizer has a height defining spacing of the respective uncinate joint. Implanting includes threading each uncinate joint stabilizer into the respective uncinate ...

Intervertebral implant whereof the parts can be spaced

Method and apparatus for performing hip prosthesis surgery

Spinal disc annulus reconstruction method and spinal disc annulus stent

The anatomic replacement prosthesis system in the hand and wrist

Bone plug

Percutaneous prosthetic spinal disc nucleus and method of manufacture

Joint prosthesis

Improved bone cement plug for deployment in a bone canal

Flexible implant using partially demineralized bone

Expansive osteosynthesis sheath

CERAMIC DISC PROSTHESIS

Interbody spinal implants and insertion techniques

An implant for a spinal column is disclosed that is capable of being inserted into a patient in a first orientation having a reduced or minimum height and then rotated to a second orientation providing a second or maximum height, wherein in each orientation the height of the implant extends in a direction from one endplate toward the other endplate of adjacent vertebrae. The implant includes first and second side-by-side elongate members that are separately rotated from the first orientation to the second orientation after implantation. The first and second implant members are interconnected by a housing that maintains the first and second members in side-by-side relation.

Expandable Fusion Device and Method of Installation Thereof

The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.

Implant positioning systems and associated methods

A system for securing a prosthesis in a bone includes a reference anchor for insertion into a cavity of a bone to define a reference point during prosthesis implantation, the reference anchor including a body having a mating feature and a gripping projection for engaging an inner surface of the bone cavity. The system also includes a stem having a terminal end adapted to mate with the engagement feature of the reference anchor such that the stem is disposed at a desired position relative to the reference point.

Intervertebral spinal implant, installation device and system

Improved interbody spinal implant devices and related instrumentation used for surgical installation of such implant devices for use in spinal fusion surgeries. The spinal implant devices are configured with apertures preferably used in conjunction with the instrumentation of the invention to improve the retention of bone graft material within the implant during installation. The invention also includes improved implants with deployable spike mechanisms.

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.

Instruments and Methods for Removing Fixation Devices from Intervertebral Implants

Anchor removal instruments and methods for using the instruments are provided. In some embodiments, an intervertebral implant anchor extractor tool comprises a support, a support retainer configured to hold the support fixed with respect to the implant, an extractor having an anchor retainer, and an extractor guide. An embodiment of a method of using this implant anchor extractor tool comprises the steps of obtaining access to an anchor, grasping the anchor, and applying a withdrawal force on the anchor while applying a countervailing force against the implant or a vertebral structure.

Artificial disc prosthesis for replacing a damaged nucleus

A multi-piece disc replacement implant for replacing a disc removed by a discectomy including an upper plate member, a lower plate member, and an intermediate resilient member providing movement between the two plate members replicating the natural movement of the spine. The plate members are rigid and have orthogonal sidewalls forming an enclosure. The resilient member is an elastic solid or a multi-chamber balloon structure of fluid-filled sacks that collectively define a non-uniform shape such as an oblate spheroid, or a helically coiled string of beads. Such an implant is capable of supporting the compressive and cyclic loads required of a natural disc. The upper and lower plate members are cooperatively formed to selectively limit the allowable range of motion in any given direction and a provided with protrusions to be received in one or more channels cooperatively formed in the vertebrae and secured in place by a bone screw.

Selectively Expanding Spine Cage, Hydraulically Controllable In Three Dimensions for Vertebral Body Replacement

A selectively expanding spine cage has a minimized diameter in its unexpanded state that is smaller than the diameter of the neuroforamen through which it passes in the distracted spine. The cage conformably engages between the endplates of vertebrae to effectively distract the anterior disc space, stabilize the motion segments, eliminate pathologic spine motion, or effect vertebral body replacement. Expanding selectively (anteriorly, along the vertical axis of the spine) rather than uniformly, the cage height increases and holds the vertebrae with fixation forces greater than adjacent bone and soft tissue failure forces in natural lordosis. Stability is thus achieved immediately, enabling patient function by eliminating painful motion. The cage shape intends to rest proximate to the anterior column cortices securing the desired spread and fixation, allowing for bone graft in, around, and through the implant for arthrodesis whereas for arthroplasty it fixes to endpoints but cushions the spine naturally.

Joint device and method

A mould adapted to be introduced into a joint of a human patient for resurfacing at least one carrying contacting surface of said joint is provided. The mould is adapted to receive material for resurfacing at least one carrying contacting surface of said joint. The mould is further adapted to be resorbed by the human body or melt after having served its purpose. Further, a method of treating hip joint osteoarthritis in a human patient by providing an artificial hip joint surface using a mould is provided. The method comprises the steps of: said mould being placed inside of said hip joint, said mould being injected with a fluid adapted to harden, said fluid hardening inside of said hip joint, said mould being resorbed by the human body, and said hardened fluid serving as artificial hip joint surface.

Proximally Self-Locking Long Bone Prosthesis

A femoral stem hip implant for insertion into a surgically created aperture in a femur includes a monolithic femoral stem made of shape memory material. The stem is configured to be inserted into the aperture, has a proximal portion and a longitudinal axis. The shape memory material within the proximal portion has a cross-section perpendicular to the longitudinal axis. At least a portion of the shape memory material within the proximal portion is in a compressed state by application of a plurality of compressive forces at a temperature below an austenitic finish temperature of the shape memory material so that the cross-section expands through shape memory effect via the formation of austenite in response to a temperature increase after insertion into the aperture thereby causing a locking-force to be exerted against an inner surface of the aperture, the locking force being sufficient to stabilize the implant in the aperture.

Inter-vertebral-body spacer

An inter-vertebral-body (IVB) spacer may include a skeletal body and a pair of interchangeable contact pads. The skeletal body may be made of a rigid material for providing structure support, and the pair of contact pads may be made of a softer material for contacting the endplates of the vertebral bodies. Advantageously, the IVB spacer may be strong enough to withstand the pressure applied between the vertebral bodies yet soft enough to protect the vertebral bodies from being eroded. Moreover, the IVB spacer may have an inter-pad angle, which may be adjusted to adapt to patients with various vertebral bone structures. The inter-pad angle of the IVB spacer may be adjusted by simply selecting and replacing one of the contact pads.

Expandable Fusion Device and Method of Installation Thereof

The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.

Methods and apparatus for insertion of vertebral body distraction and fusion devices

An introducer can be used to implant a distractible intervertebral body fusion device into a patient's disc space and expand the device. Introducer includes a body 100 including a handle and a sleeve. Handle includes a slot for containing an actuation tool. A drive shaft and a securing shaft can extend through sleeve between a proximal end of the sleeve adjacent slot and a distal end of the device. At proximal end, actuation tool can connect to drive shaft where drive shaft extends through an opening in body. Drive shaft can extend out of an opening at distal end to engage a worm gear, drive shaft, or other actuation member of distractible device. Securing shaft can engage the device to stabilize the device during distraction. Activation of the actuation member rotates the drive shaft, which expands the distractible device.

Surgical Implant

A surgical implant comprises a body having a compressed state and an uncompressed state. An envelope contains the body in at least the compressed state. The envelope forms an air-tight seal around the body in the compressed state and is water-soluble or degradable in body fluids.

Hip joint device and method

A hip joint prosthesis adapted to be implanted in a hip joint of a human patient is provided. The hip joint prosthesis comprises a first area and a second area, and wherein said first area comprises a first material adapted to be elastic and said second area comprises a second material adapted to be elastic, and wherein said first material is adapted to be more elastic than said second material.

System and devices for the repair of a vertebral disc defect

A system for repairing a vertebral disc defect, such as hernia or bulge, a full or partial tear in the annulus, or a weakened annulus wall as a result of an excision procedure. The system introduces a treatment device arranged to repair the defect, and may prevent the leakage of fluid from the nucleus. The components of the device may be resorbable materials, and may induce the ingrowth of cellular material into the components. The system may feature a locating device to ensure proper placement of the treatment device.

Expandable intervertebral spacer

A spinal implant system, specifically an intervertebral spacer. The system is designed to change its physical conformation from a minimal profile to an expanded state, enabling it to be placed through a smaller incision and operative cannula. The ability to change from a minimal profile to an expanded state may be accomplished through pivoting of support bodies, or expansion through a screw system, or sliding of the support bodies perhaps along an oblong surface. The system will allow for long-term promotion of osteointegration.

Intervertebral disc prosthesis, method for assembling, method for implanting prosthesis, and method for explanting

Prosthesis for inserting into a damaged intervertebral disc. The prosthesis has an elongated tubular main prosthesis body with a length to fit laterally from one side of a disc to the other at its mid-plane. The main prosthesis body is composed of two parts transversely oriented and has a vertical height deliberately greater than the height of normal disc space. Heads having a vertical height greater than the vertical height of the main prosthesis body are mounted on the ends of the main prosthesis body.

Minimally invasive expanding spacer and method

A minimally invasive spacer for positioning between vertebral members. The spacer is adjustable between a first orientation having a reduced size to facilitate insertion between the vertebral members. A second orientation has an enlarged size for contacting the vertebral members. The spacer includes linkages that are attached to a pair of plates. A pull arm is operatively connected to the linkages for adjusting the spacer from the first orientation to the second orientation. A indicator gauge indicates the height of the spacer.

In-situ intervertebral fusion device and method

An orthopedic device for implanting between adjacent vertebrae comprising: an arcuate balloon and a hardenable material within said balloon. In some embodiments, the balloon has a footprint that substantially corresponds to a perimeter of a vertebral endplate. An inflatable device is inserted through a cannula into an intervertebral space and oriented so that, upon expansion, a natural angle between vertebrae will be at least partially restored. At least one component selected from the group consisting of a load-bearing component and an osteobiologic component is directed into the inflatable device through a fluid communication means.

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.

Methods and apparatuses for vertebral body distraction and fusion employing a coaxial screw gear sleeve mechanism

Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments of the present invention employ one or more coaxial screw gear sleeve mechanisms. In various embodiments, coaxial screw gear sleeve mechanisms include a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing the device to distract.

Systems and methods for delivering an implant between adjacent vertebras using endoscopy

An optical intervertebral implantation system can be used for a method of implanting an intervertebral implant into an intervertebral space with visualization. The system can include an elongate light guide and an intervertebral implant operably coupled with the elongate light guide. The elongate light guide can be configured as a guide wire and received through an aperture of the implant. The elongate light guide can be configured as a guide wire and the implant is received over and slides along on outside surface of the elongate light guide. The elongate light guide can be configured as a cannula having an internal conduit and the implant is received within the conduit. The elongate light guide can be configured as a cannula with an internal conduit and the implant is slidably coupled with an internal surface of the internal conduit of the cannula.

Bi-directional fixating transvertebral body screws and posterior cervical and lumbar interarticulating joint calibrated stapling devices for spinal fusion

A self-drilling bone fusion screw apparatus is disclosed which includes at least first and second sliding boxes. A first screw member having a tapered end and a threaded body is disposed within the first sliding box, and a second screw member having a tapered end and a threaded body disposed within the second sliding box. An adjuster adjusts the height of the sliding boxes. The screw members are screwed into vertebral bodies in order to fuse the vertebral bodies together. A plurality of the self-drilling bone fusion screw apparatuses may be attached together and/or integrated via a plate or cage. Also disclosed is a cervical facet staple that includes a curved staple base and at least two prongs attached to the bottom surface of the curved staple base.

Methods and apparatus for insertion of vertebral body distraction and fusion devices

An inserter can be used to implant a distractible intervertebral body fusion device into a disc space and expand the device. The inserter includes a shaft frame and a drive shaft assembly for expanding the device and a support shaft assembly for stabilizing the device extending distally from the shaft frame. A drive housing can be operably connected to the shaft frame and extend outwardly from shaft frame distal of a proximal end of the shaft frame. Drive housing can have an internal passage that provides access into the shaft frame to a proximal end of the drive shaft assembly. An actuation tool can be disposed with the drive housing with a distal end extending through the access into the shaft frame to interface with the proximal end of the drive shaft assembly such that activation of the actuation tool rotates the drive shaft assembly to expand the device.

Far lateral spacer

A PEEK spacer for use in the spine is disclosed. The PEEK spacer may be configured to fit through Kambin's Triangle and expand upon insertion.

Expandable interbody implant and methods of use

An intervertebral implant is provided. The intervertebral implant comprises a first component comprising an outer tissue engaging surface and an inner surface. A second component is connected to the first component, and is relatively moveable thereform. The second component comprises an outer tissue engaging surface and an inner surface. The second component includes an actuator. A third component is disposed for engagement and is movable relative to the first and second components. The third component comprises at least a first ramp and a second ramp axially spaced apart from the first ramp. The actuator is engageable with the third component to effect axial translation of the wedge such that the ramps engage the inner surface of at least one of the first component and the second component to move the components between a first, collapsed configuration and a second, expanded configuration. Methods of use are disclosed.

Selectively Expanding Spine Cage With Enhanced Bone Graft Infusion

A selectively expanding spine cage has a minimized cross section in its unexpanded state that is smaller than the diameter of the neuroforamen through which it passes in the distracted spine. The cage conformably engages between the endplates of the adjacent vertebrae to effectively distract the anterior disc space, stabilize the motion segments and eliminate pathologic spine motion. Expanding selectively (anteriorly, along the vertical axis of the spine) rather than uniformly, the cage height increases and holds the vertebrae with fixation forces greater than adjacent bone and soft tissue failure forces in natural lordosis. Stability is thus achieved immediately, enabling patient function by eliminating painful motion. The cage shape intends to rest proximate to the anterior column cortices securing the desired spread and fixation, allowing for bone graft in, around, and through the implant for arthrodesis whereas for arthroplasty it fixes to endpoints but cushions the spine naturally.

Bone fusion device, system and method

A bone fusion method, system and device for insertion between bones that are to be fused together in order to replace degenerated discs and/or bones, for example, the vertebrae of a spinal column. The bone fusion device comprises a frame and one or more extendable plates that are able to be angled, rotatable, adjustable, and have top profiles designed to correct and/or match the replaced discs/bones. The bone fusion device is able to be inserted between or replace the vertebrae by using a minimally invasive procedure wherein the dimensions and/or other characteristics of the bone fusion device are selectable based on the type of minimally invasive procedure.

Interbody device insertion systems and methods

Provided is a system for implanting an interbody device into a disc space located between a first and second vertebra includes a guide frame including a guide member having an opening. The system further includes an implant trial including an elongated body and a base plate coupled to the elongated body. The elongated body of the implant trial is releasably coupled to the guide member of the guide frame during use such that the opening guides longitudinal movement of the implant trial relative to the guide frame. The system still further includes a dilator operatively coupled to the elongated body during use for distracting the disc space. The system still further includes an insertion instrument including an elongated body and an insertion member coupled to the elongated body. The elongated body of the insertion instrument is releasably coupled to the guide member of the guide frame during use such that the opening guides longitudinal movement of the insertion instrument relative to the guide frame. The insertion member is releasably coupled to at least a portion of the interbody device during use.

Stand-alone spinal cage

A spinal cage device for fusion of spinal vertebrae comprising a cage body having a cavity defined by upper, lower, and side walls; a piston selectively insertable into the cavity through a side wall, the piston having at least one angled surface; at least one channel extending through at least one of the upper wall and the lower wall; at least one fastening member moveable within the at least one channel between a first disengaged position and a second engaged position; and wherein in second engaged position the at least one fastening member is held substantially stationary relative to the cage body by contact with the piston. According to one aspect of the invention, the device includes a locking means for supplementing fixation of the piston to the cage body.

Spine surgery method and implant

An implant has a first contact surface to contact a first vertebral body endplate and a second contact surface to contact a second vertebral body endplate adjacent the first vertebral body. The implant is deployable, when positioned within an intradiscal space between the first and second vertebral bodies, from a first non-expanded condition where the first contact surface has a first effective footprint area A 1 to a second expanded condition where the first contact surface has a second effective footprint area A 2. The ratio A 2/ A 1 is at least 1.05.

Articulating Interbody Cage and Methods Thereof

Disclosed herein are devices ( 100 ), systems and methods of use relating to articulating interbody cages. In one aspect, disclosed is an intervertebral device ( 100 ) for use in a human spine including an anterior end ( 104 ); a posterior end ( 102 ); and at least four peripheral walls ( 22,24,26 ). The peripheral walls ( 26 ) define an interior volume surrounding a midline of the device and include a superior wall ( 22 ), an inferior wall ( 24 ) and a pair of opposing, generally trapezoidal-shaped sidewalls. Each of the trapezoidal-shaped sidewalls ( 26 ) includes an internal hinge element ( 60 ) that is rotatable from a first configuration to at least a second configuration such that the device is expandable in first dimension. Each of the internal hinge elements includes an axis that is coplanar with the midline of the device.

Expandable interbody spacer device

An expandable interbody spacer ( 10 ) is provided that includes a pair of oppositely facing endplate components ( 20, 40 ) and an interior component that includes one or more vertically extending stacks of arranged C-clip members ( 70 ) radially surrounding one or more bosses ( 30 ) protruding interiorly from one of the endplates, wherein the size and configuration of the bosses and the C-clip members are designed to allow the incremental expansion of expandable interbody spacer.

Spinal distraction system

A spinal distraction system, according to one aspect, includes an adjustable spinal distraction rod comprising first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members. The system includes an anchor rod configured for mounting to a bone of a subject, the anchor rod having one or more spring-biased tabs disposed at one end thereof, and a connector having first end and a second end, the first end having a receiving cup configured for detachable mounting on the anchor rod, wherein the one or more spring-biased tabs are configured to engage with an inner surface of the receiving cup, the connector having a second end operatively coupled to an end of a first member and wherein the second member is configured for mounting to a second bone of a subject.

Intervertebral Implant Having Extendable Bone Fixation Members

An intervertebral implant is configured to be fixed in an intervertebral space defined by a first vertebral body and a second vertebral body. The intervertebral implant includes an implant body sized to be inserted into an intervertebral space, and a fixation assembly configured to be attached to the implant body. The fixation assembly includes a housing that defines a first vertebral body facing surface and a second vertebral body facing surface spaced from the first vertebral body facing surface along a transverse direction. The fixation assembly further includes at least one fixation member supported by the housing and movable from a retracted position to an extended position, whereby in the extended position the fixation member extends out from the housing and into one of the vertebral bodies.

System and method for an interbody spinal fusion assembly

An interbody spinal fusion assembly includes an interbody cage, planar metal pins and bone fasteners. The interbody cage includes a metal cage and a PEEK insert. The PEEK insert is inserted into a slot of the metal cage and is secured to the metal cage with a pin. The assembled interbody cage is inserted in the space between two adjacent vertebras and is secured in placed with the planar metal pins and the bone fasteners.

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

An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surf aces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant. The upper and lower body portions can have side portions that help facilitate linear translational movement of the upper body portion relative to the lower body portion.

INTERVERTEBRAL SPACER AND PLATE

Embodiments herein are generally directed to spinal implants, systems, apparatuses, and components thereof that can be used in spinal fusion and/or stabilization procedures, as well as methods of installation. The spinal implants may include an intervertebral spacer and a plate member. 1. A method of installing a vertebral fusion device , comprising: a first endplate including a first plate adapted to contact a first vertebral body and a first extension extending laterally from the first plate;', 'a second endplate including a second plate adapted to contact a second vertebral body adjacent to the first vertebral body and a second extension extending laterally from the second plate, both the first and second plates extending from a first side of the device to a second side of the device; and', 'a first ramp and a second ramp, both the first ramp and the second ramp being configured to mate with the first and second plates, and both the first ramp and the second ramp extending from the first side of the device to the second side of the device, wherein at least one of the first and second sides of the device is configured to pivotably expand about a pivot point;', 'wherein the device defines a first angle with respect to the pivot point;, 'providing a vertebral fusion device in a collapsed configuration, comprising 'pivotably expanding at least one of the first and second sides of the device about the pivot point until the device defines a second angle with respect to the pivot point, wherein the second angle is greater than the first angle; and', 'transitioning the fusion device from the collapsed configuration to an expanded configuration, comprisinginserting a first fastener into a bore in the first extension and inserting a second fastener into a bore in the second extension.2. The method of claim 1 , wherein the step of pivotably expanding at least one of the first and second sides of the device further comprises expanding the device from a collapsed height to an ...

Acetabular liner

An acetabular liner having a closed first end, an open second end, and a liner wall having a distal peripheral edge. The acetabular liner wall can include an interior surface, an exterior surface configured to be received within an acetabular shell, a first cutout through the liner wall, a second cutout parallel to the first cutout and through the liner wall, and a third cutout in the interior surface partially through the liner wall, the third cutout extending between the first and second cutouts, and at least one movable tab extending from the peripheral edge inwardly towards an axial center of the liner and having sidewalls defined by one of the sets of cutouts, the tab comprising at least one projection on an exterior surface of the tab configured to removably secure to a portion of an acetabular shell.

EXPANDABLE FUSION DEVICE AND METHOD OF INSTALLATION THEREOF

An expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube. 1. An expandable fusion device comprising:a first endplate and a second endplate,a central ramp, a driving ramp, and an actuator positioned between the first and second endplates, the central ramp including a bore, a first expansion portion, and a second expansion portion separate from the first expansion portion, the driving ramp including a through bore and a third expansion portion, and the actuator including a head portion and an extension that extends from the head portion, and the extension of the actuator extends through the through bore of the driving ramp and into the bore of the central ramp,wherein when the actuator is rotated, the central ramp and the driving ramp move towards one another, thereby causing the first and second endplates to move apart.2. The device of claim 1 , wherein the first expansion portion is proximate a first end and includes overlapping ramped portions.3. The device of claim 2 , wherein the second expansion portion is positioned between the first end and a second end and includes central ramped portions.4. The device of claim 3 , wherein the central ramped portions includes two central ramped portions on opposite side of the central ramp.5. The device of claim 1 , wherein the driving ramp includes an upper side claim 1 , a lower side claim 1 , a first side portion connecting the upper side and the lower side claim 1 , and a second side portion connecting the upper side and the lower side claim 1 , and the first and ...

UNIVERSALLY EXPANDING CAGE

An expandable medical implant is provided with an implantable cage body. Methods for stabilizing and correcting the alignment of a spine with an expandable medical implant are provided. The proximal and distal ends of the cage body may each be provided with a plug for causing expansion of the ends of the implant and therefore the bone engaging surfaces of the implant. The proximal plug member may be configured to move longitudinally such that the proximal end of the cage body resiliently expands. The distal plug member may be configured to move longitudinally such that the distal end of the cage body resiliently expands. The proximal and distal plug members are moved longitudinally independently from one another to allow for independent expansion and contraction of each of the proximal and distal ends of the cage body itself. 1. An expandable medical implant comprising:a cage body with a proximal end and a distal end,a proximal hinge,a distal hinge,a first off-center tapered slot defining a first cantilevered arm wherein the first off-center slot can accommodate a first actuator screw,a second off-center tapered slot defining a second cantilevered arm wherein the first off-center slot can accommodate a second actuator screw,a first access hole, anda second access hole.2. The expandable medical implant of claim 1 , wherein the first actuator screw may be turned independently of the second actuator screw.3. The expandable medical implant of claim 1 , wherein the second actuator screw may be turned independently of the first actuator screw.4. The expandable medical implant of claim 1 , wherein the first actuator screw has a tapered head.5. The expandable medical implant of claim 1 , wherein the second actuator screw has a tapered head.6. The expandable medical implant of claim 1 , wherein the first access hole allows access to the first or second actuator screw.7. The expandable medical implant of claim 1 , wherein the second access hole allows access to the first or ...

SPINAL IMPLANT SYSTEM AND METHOD

A method of treating a spine includes implanting a spinal implant within a patient. The spinal implant includes a first member having a first wall defining an axial passageway and a first opening, the first opening being in communication with the axial passageway. A second member includes a second wall defining an axial channel having the first member disposed therein, the second wall defining a second opening in communication with the axial channel. Bone graft is injected through the first opening and into the axial passageway and through the second opening and into the axial channel after the spinal implant is implanted within the patient. 1. A method of treating a spine , the method comprising the steps of: a first member comprising a first wall defining an axial passageway and a first opening, the first opening being in communication with the axial passageway,', 'a second member including a second wall defining an axial cavity having the first member disposed therein, the second wall defining a second opening in communication with the axial channel; and, 'implanting a spinal implant within a patient, the spinal implant comprisinginjecting bone graft through the first opening and into the axial passageway and through the second opening and into the axial cavity after the spinal implant is implanted within the patient.2. A method as recited in claim 1 , wherein the spinal implant is free of bone graft prior to being implanted within the patient.3. A method as recited in claim 2 , wherein injecting bone graft comprises completely filling the axial passageway and the axial cavity with bone graft.4. A method as recited in claim 2 , further comprising translating the members axially to move the spinal implant from a contracted configuration to an expanded configuration within the patient prior to injecting the bone graft into the spinal implant.5. A method as recited in claim 2 , wherein implanting the spinal implant comprises positioning the spinal implant between ...

PROSTHETIC DEVICES

Expandable prosthetic devices used for treating a variety of conditions, including rotator cuff injuries, broken and/or depressed bone fractures, infection and/or inflammation in the body. In one embodiment, a prosthesis includes an implant having a pressure regulating valve. The implant is capable of being positioned between a first tissue and an opposing second tissue in a void space and of deforming under pressure in response to articulation of a joint. The pressure regulating valve is configured to open based on a predetermined pressure in the implant. 131-. (canceled)32. A prosthesis comprising:an inflatable chamber defining an opening through which fluid can flow into the inflatable chamber to fill the inflatable chamber and defining a single cavity comprising an outer surface having one or more external features configured to facilitate engagement between the outer surface of the single cavity and one or both of a first tissue and a second tissue opposite the first tissue;a rigid ring defining a lumen coupled to the opening of the inflatable chamber; anda plug configured to seat in the lumen of the rigid ring to seal the opening of the inflatable chamber,wherein the rigid ring is slidably disposed about a tube interfacing with the inflatable chamber in a manner to prevent fluid from passing through an interface between the rigid ring and the tube,wherein the prosthesis is configured to be positioned in a void space of a joint between the first tissue and the second tissue, andwherein the inflatable chamber deforms under pressure in response to articulation of the joint.33. The prosthesis of claim 32 , wherein a maximum volume of the inflatable chamber is in a range between 0.5 cc and 60 cc.34. The prosthesis of claim 33 , wherein the inflatable chamber is filled to over 70% of the maximum volume of the inflatable chamber with a filler.35. The prosthesis of claim 33 , wherein the inflatable chamber is filled to less than 50% of the maximum volume of the ...

EXPANDABLE FUSION DEVICE AND METHOD OF INSTALLATION THEREOF

The present invention provides an expandable fusion device capable of being inserted between adjacent vertebrae to facilitate the fusion process. The expandable fusion device may include first and second endplates, a translation member configured to expand an anterior side and/or posterior side of the device, a plurality of joists configured to connect the first and second endplates to the translation member, and first and second actuation members disposed internally to the device such that openings on a back side of the device can be used to expand or compress the anterior side, the posterior side, or both and such openings may also be used to introduce graft material into the device. 1. An expandable fusion device comprising:a first endplate;a second endplate;a first joist and a second joist connected to the first endplate;a third joist and a fourth joist connected to the second endplate;a translation member in engagement with the first joist, second joist, third joist, and fourth joist;a first actuation member in engagement with the translation member assembly, wherein the first actuation member is configured to move the first joist and the third joist such that the first endplate and the second endplate move in a direction away from the translation member on a first side of the expandable fusion device; anda second actuation member in engagement with the translation member assembly, wherein the second actuation member is configured to move the second joist and the fourth joist such that the first endplate and the second endplate move in a direction away from the translation member on a second side of the expandable fusion device.2. The expandable fusion device of claim 1 , wherein the first side is an anterior side claim 1 , and wherein the second side is a posterior side.3. The expandable fusion device of claim 1 , further comprising a first anterior ramp frame and a second anterior ramp frame on the first side of the expandable fusion device.4. The expandable ...

EXPANDABLE FUSION DEVICE AND METHOD OF INSTALLATION THEREOF

The present invention provides an expandable fusion device capable of being inserted between adjacent vertebrae to facilitate the fusion process. A method of installing an expandable fusion device may comprise introducing the expandable fusion device into an intervertebral space, wherein the expandable fusion device comprises a proximal end, a distal end, an anterior side connecting the proximal end and the distal end, and a posterior side connecting the proximal end and the distal end, wherein the expandable fusion device has an anterior height on the anterior side and a posterior height on the posterior side. The method may further comprise adjusting the anterior height of the expandable fusion device independently from adjustment of the posterior height. The method can also include changing the lordotic angle. 1. An expandable fusion device comprising:a first endplate;first ramp frames that are pivotally coupled to the first endplate;a second endplate;second ramp frames that are pivotally coupled to the second endplate;a translation member assembly in engagement with the first ramp frames and the second ramp frames, the translation member assembly comprising ramps on a first side of the expandable fusion device and ramps on a second side of the expandable fusion device;a first actuation member in engagement with the translation member assembly on the first side of the expandable fusion device; anda second actuation member in engagement with the translation member assembly on the second side of the expandable fusion device.2. The expandable fusion device of claim 1 , wherein the first side is an anterior side claim 1 , and wherein the second side is a posterior side.3. The expandable fusion device of claim 1 , wherein the first ramp frames comprise a first anterior ramp frame and a first posterior ramp frame claim 1 , and wherein the second ramp frames a second anterior ramp frame and a second posterior ramp frame.4. The expandable fusion device of claim 3 , ...

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 ...

Expandable interbody spacer

Devices and methods for treating one or more damaged, diseased, or traumatized portions of the spine, including intervertebral discs, to reduce or eliminate associated back pain. In one or more embodiments, the present invention relates to an expandable interbody spacer. The expandable interbody spacer may comprise a first jointed arm comprising a plurality of links pivotally coupled end to end. The expandable interbody spacer further may comprise a second jointed arm comprising a plurality of links pivotally coupled end to end. The first jointed arm and the second jointed arm may be interconnected at a proximal end of the expandable interbody spacer. The first jointed arm and the second jointed arm may be interconnected at a distal end of the expandable interbody spacer.

EXPANDABLE FUSION DEVICE AND METHOD OF INSTALLATION THEREOF

The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. 1. An expandable device , comprising: endplates;', 'an elongate body disposed between the endplates and further extending proximally, the elongate body having an external threading at a proximal portion; and', 'an inner shaft disposed within the elongate body and adapted to translate to expand the endplates, the inner shaft having a mating section at a proximal end; and, 'an expandable spacer including a housing having an internal threading adapted to threadably receive the external threading of the inner shaft; and', 'a slidable lock coupled to the housing and having a mating portion, the slidable lock having a first sliding position that mates the mating portion with the mating section of the inner shaft to lock the inner shaft to the housing and a second sliding position that unlocks the inner shaft from the housing for removal of the expandable spacer from the removable handle., 'a removable handle coupled to the proximal portion of the elongate body and including2. The expandable device of claim 1 , wherein the housing includes an internally threaded insert coupled to the external threading of the inner shaft.3. The expandable device of claim 1 , wherein the housing includes an internally threaded insert coupled to the external threading of the inner shaft and the insert is formed of polymer material.4. The expandable device of claim 3 , ...

Anterior-to-posterior uncinate joint stabilizer systems

A system for stabilizing a cervical spine segment includes a pair of uncinate joint stabilizers for stabilizing a respective pair of uncinate joints. Each uncinate joint stabilizer is elongated along a lengthwise dimension and is configured for placement in the respective uncinate joint with the lengthwise dimension substantially oriented along an anterior-to-posterior direction of the cervical spine segment. Each uncinate joint stabilizer has height configured to define spacing of the respective uncinate joint. Each uncinate joint stabilizer includes a generally cylindrical portion with cylinder axis in the lengthwise dimension. The generally cylindrical portion has threads for threading the uncinate joint stabilizer into the respective uncinate joint along the anterior-to-posterior direction. The threads are interrupted by one or more fenestrations configured to accommodate bone graft material, bone growth, and/or tissue displaced from the respective uncinate joint by the uncinate joint stabilizer.

STABILIZATION OF CERVICAL SPINE UTILIZING STABILIZATION OF UNCINATE JOINTS AND ACROSS DISC SPACE

A system for stabilizing a cervical spine segment utilizing uncinate joint stabilization, includes a stabilizing bridge for bridging across intervertebral disc space of the cervical spine segment to mechanically couple between a pair of uncinate joint stabilizers positioned in a respective pair of uncinate joints of the cervical spine segment. A method for stabilizing a cervical spine segment utilizing uncinate joint stabilization includes (a) positioning a pair of uncinate joint stabilizers in respective uncinate joints of the cervical spine segment to stabilize the uncinate joints and thereby stabilize the cervical spine segment (b) and implanting, in intervertebral disc space of the cervical spine segment, a stabilizing bridge that mechanically couples between the uncinate joint stabilizers across intervertebral disc space of the cervical spine segment. 1. A system for stabilizing a cervical spine segment utilizing uncinate joint stabilization , comprising:a stabilizing bridge for bridging across intervertebral disc space of the cervical spine segment to mechanically couple between a pair of uncinate joint stabilizers positioned in a respective pair of uncinate joints of the cervical spine segment.2. The system of claim 1 , the stabilizing bridge configured to claim 1 , when positioned in the intervertebral disc space claim 1 , apply laterally outward pressure on the uncinate joint stabilizers to help secure at least one of (a) the uncinate joint stabilizers and (b) the stabilizing bridge.3. The system of claim 2 , the stabilizing bridge having at least one void for accommodating bone graft material to promote fusion of the intervertebral disc space.4. The system of claim 3 , further comprising the uncinate joint stabilizers claim 3 , each of the uncinate joint stabilizers having a porous portion with pores capable of accommodating bone graft material or a porous portion substantially composed of bone graft material claim 3 , to promote fusion of the uncinate ...

Transforaminal intersomatic cage for an intervertebral fusion graft and an instrument for implanting the cage

This disclosure presents various embodiments of a transforaminal intersomatic cage for an intervertebral fusion graft, and an instrument and method for implanting the cage, an embodiment of the cage having a body in the shape of a circular arc and comprising a lateral concave surface, a lateral convex surface, a straight upper surface, a straight lower surface and an end wall having at least one hole, called the end hole, designed to receive a rod of an instrument for implanting the cage between the vertebrae, wherein: the end hole has an orientation that is more or less tangential to the circular arc described by the body; the extremity opposite to the end wall of the body includes a return part extending the body toward the center of the circle on which the circular arc described by the body lies. 121-. (canceled)22. An instrument for the implantation of an intersomatic cage for an intervertebral fusion graft comprising a body generally defining an arc , the body comprising a lateral concave surface; a lateral convex surface; a substantially transverse upper surface; a substantially transverse lower surface; an end wall at a first longitudinal extremity of the body , the end wall comprising an end hole oriented substantially tangential to the arc defined by the body; said instrument comprising:a rod comprising a retaining end configured for insertion in the end hole; a support spatula comprising a base and generally defining an arc complementary to the arc defined by the body,', 'a guide tube in which the rod is slidably disposed and to which the base of the support spatula is mounted, the guide tube comprising an opening through which the retaining end of the rod can transit for insertion in the end hole; and, 'a gripping end for gripping the intersomatic cage, the gripping end comprising'}a handling end for manipulating the instrument.23. An instrument according to claim 22 , wherein the rod extends substantially to the vicinity of the handling end of the ...

Systems and methods for expandable corpectomy spacer implantation

An implant assembly including an expandable vertebral body replacement implant. The implant assembly includes a right hand end and a left hand end configured to attach to a threaded actuator. An outer ring is configured to surround each of the right and left hand ends and the threaded actuator. The implant assembly may include removable endplates configured to engage vertebral bodies as interbody spacer or through a corpectomy. The implant assembly includes a locking mechanism to prevent collapse or movement the implant assembly after implantation. The locking mechanism automatically engage after removal of an inserter instrument from the implant assembly.

Methods And Apparatuses For Bone Restoration

Methods and apparatuses for restoration of human or bone anatomy, which may include introduction, into a bone of an expansible implant capable of expansion in a single determined plane, positioning the expansible implant in the bone in order to correspond the single determined plane with a bone restoration plane and opening our the expansible implant in the bone restoration plane. A first support surface and a second support surface spread tissues within bone. The embodiments of the invention may also include injecting a filling material around the implant. 1. (canceled)2. A method for restoration of a human or animal vertebral body comprising:implanting an implant into a vertebral body;moving integrally connected first and second plates of the implant in opposite directions of each other and orthogonal to a longitudinal axis of the implant; andinjecting a filling material through the implant and into the cavity such that the filling material at least partially surrounds the implant.3. The method according to claim 2 , wherein the first plate and the second plate claim 2 , when expanded claim 2 , respectively form a first support surface and a second support surface in the vertebral body.4. The method according to claim 3 , wherein the implant further comprises a first end element and a second end element positioned such that the first and second plates are located between the first end element and the second end element when the implant is in a collapsed position prior to the moving step claim 3 , the first end element and the second end element becoming closer to one another as the first and second plates move in opposite directions.5. The method according to claim 4 , wherein the implant is substantially symmetrical about a central axis perpendicular to the longitudinal axis and bisecting the implant before claim 4 , during and after moving the first and second plates of the implant in opposite directions.6. The method according to claim 4 , further comprising: ...

EXPANDABLE FUSION CAGE SYSTEM

An expandable fusion cage system includes an expandable fusion cage having an upper portion, a lower portion, and a hinge portion coupling the lower portion and the upper portion at their distal ends. Positioned between the upper and lower portions is an expansion element that when moved in the proximal direction causes the cage to expand at its proximal end. The system can also include inserter instruments, expandable distraction instruments, and bone funnels. 1. A spinal implant , comprising:an upper portion having a proximal end, a distal end, and a longitudinal axis extending therebetween;a lower portion having a proximal end, a distal end, and a longitudinal axis extending therebetween; anda hinge portion coupling the upper and lower portion distal ends, the hinge portion having a hinge axis disposed transverse and at a non-orthogonal angle to both the longitudinal axes of the upper and lower portions.2. The spinal implant of claim 1 , wherein the hinge axis is disposed at an angle of between about fifteen (15) degrees and about forty (40) degrees relative to the longitudinal axes.3. The spinal implant of claim 1 , further comprising:an expansion element disposed between the upper and lower portions, the expansion element adapted for slidable movement between the upper and lower portions.4. The spinal implant of claim 3 , wherein the expansion element has a variable height along a length of the expansion element.5. The spinal implant of claim 1 , wherein the upper and lower portions each have an opening therethrough claim 1 , and wherein the openings in the upper and lower portions are aligned.6. The spinal implant of claim 3 , further comprising opposing surfaces defined by a lower surface of the upper portion and an upper surface of the lower portion claim 3 , wherein the opposing surfaces are adapted to engage the expansion element.7. The spinal implant of claim 6 , wherein the opposing surfaces comprise at least one slot adapted to engage the expansion ...

SPINAL IMPLANT SYSTEM AND METHOD

A spinal implant comprises an implant body extending between an anterior surface and a posterior surface. The implant body includes a first vertebral engaging surface and a second vertebral engaging surface. The implant body includes an outer surface that defines an oblique surface. A wall is connectable with the implant body and translatable relative to the oblique surface. Systems and methods are disclosed. 120-. (canceled)21. A spinal implant comprising:an implant body extending along a longitudinal axis between opposite proximal and distal walls, the implant body comprising opposite anterior and posterior walls each extending from the proximal wall to the distal wall, the proximal wall comprising an outer surface extending at an oblique angle relative to the longitudinal axis, the outer surface defining an opening;a connecting member movably disposed within the opening; anda plate coupled to the connecting member such that the plate is translatable along the outer surface.22. The spinal implant recited in claim 21 , wherein the walls each extend between opposite first and second vertebral engaging surfaces claim 21 , the implant body including an aperture extending through one of the vertebral engaging surfaces such that the aperture is in communication with the opening claim 21 , a first portion of the connecting member being positioned in the aperture and a second portion of the connecting member being positioned in the opening.23. The spinal implant recited in claim 22 , wherein the aperture has an arcuate configuration.24. The spinal implant recited in claim 21 , wherein the walls each extend between opposite first and second vertebral engaging surfaces claim 21 , the plate comprising a first end positioned above the first vertebral engaging surface and an opposite second end positioned below the second vertebral engaging surface.25. The spinal implant recited in claim 21 , wherein the walls each extend between opposite first and second vertebral engaging ...

METHOD AND APPARATUS FOR MINIMALLY INVASIVE INSERTION OF INTERVERTEBRAL IMPLANTS

A dilation introducer for orthopedic surgery is provided for minimally invasive access for insertion of an intervertebral implant. The dilation introducer may be used to provide an access position through Kambin's triangle from a posterolateral approach. A first dilator tube with a first longitudinal axis is provided. A second dilator tube may be introduced over the first, advanced along a second longitudinal axis parallel to but offset from the first. A third dilator tube may be introduced over the second, advanced along a third longitudinal axis parallel to but offset from both the first and the second. An access cannula may be introduced over the third dilator tube. With the first, second, and third dilator tubes removed, surgical instruments may pass through the access cannula to operate on an intervertebral disc and/or insert an intervertebral implant. 123-. (canceled)24. A method of performing an endoscopic procedure through a Kambin's triangle of a human , the method comprising the steps of:inserting a tube along a previously-created opening through tissue of the human through the Kambin's triangle and toward an intervertebral disc space along a generally transforaminal approach, thereby enlarging the previously-created opening, wherein the dilator tube is prevented from contacting any existing nerves that partially define the Kambin's triangle during the inserting step;inserting at least one surgical tool through the Kambin's triangle through the tube and into the intervertebral disc space; andperforming the endoscopic procedure on the disc space using the at least one surgical tool.25. The method as recited in claim 24 , wherein the inserting step further comprises the step of applying an electrical current to an electrically conductive element supported by the tube claim 24 , and determining that a nerve of the Kambin's triangle has been stimulated by the electrically conductive element.26. The method as recited in claim 24 , wherein the performing step ...

Expandable Spinal Implants

A spinal implant has a proximal region and a distal region, and includes an upper body and a lower body each having inner surfaces disposed in opposed relation relative to each other. A proximal adjustment assembly is disposed between the upper and lower bodies at the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies at the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other to change a vertical height of at least one of the proximal region or the distal region of the spinal implant. 1. A spinal implant extending along a longitudinal axis between a proximal region and a distal region , the spinal implant comprising:an upper body for engaging an upper vertebral body;a lower body for engaging a lower vertebral body;a proximal adjustment assembly disposed between the upper and lower bodies in the proximal region of the spinal implant and adjustably coupled to the upper and lower bodies, the proximal adjustment assembly including a proximal translatable member and a proximal rotational actuator, wherein the proximal rotational actuator includes a threaded portion, such that the proximal adjustment assembly is actuated by driving threaded advancement of the proximal rotational actuator, whereby the proximal translatable member is induced to translate along the longitudinal axis; anda distal adjustment assembly disposed between the upper and lower bodies in the distal region of the spinal implant and adjustably coupled to the upper and lower bodies, the distal adjustment assembly including a distal translatable member and a distal rotational actuator, wherein the distal rotational actuator includes a threaded portion, such that the distal adjustment assembly is actuated by driving threaded advancement of the ...

Implant, implantation device, implantation method

An implant suitable for being anchored with the aid of mechanical vibration in an opening provided in bone tissue. The implant is compressible in the direction of a compression axis under local enlargement of a distance between a peripheral implant surface and the compression axis. The implant includes a coupling-in face which serves for coupling a compressing force and the mechanical vibrations into the implant, which coupling-in face is not parallel to the compression axis. The implant also includes a thermoplastic material which, in areas of the local distance enlargement, forms at least a part of the peripheral surface of the implant.

METHODS AND APPARATUS FOR IMPLANTING AN INTERBODY DEVICE

An interbody implant comprises one or more elongate members that have superior and inferior surfaces with a height, and medial and lateral surfaces having a width. The height is set so the implant fits into the intervertebral space. The width is less than the height. The interbody implant has a first configuration, a second configuration, and a third configuration. The interbody implant is inserted into the intervertebral space in the first configuration such that medial and lateral surfaces contact the vertebral bodies, and the interbody implant is then actuated into the second configuration such that superior and inferior surfaces engage the vertebral bodies. Actuation of the implant from the first configuration to the second configuration distracts the vertebral bodies. The implant is actuated into the third configuration where the width of the implant is greater than width of the implant in the first or the second configuration. 1. An interbody implant for implanting in an intervertebral space surrounded by adjacent vertebral bodies in a patient during spinal fusion , said implant comprising:one or more elongate members that form the implant, the one or more elongate members having superior and inferior surfaces with a height therebetween, and medial and lateral surfaces having a width therebetween,wherein the superior and inferior surfaces are shaped to engage the vertebral bodies, andwherein the height is set at a predetermined distance that is sized to fit into the intervertebral space, andwherein the width is set at a predetermined distance less than the predetermined height, andwherein the interbody implant has a first configuration, a second configuration, and a third configuration,wherein the interbody implant is inserted into the intervertebral space in the first configuration such that medial and lateral surfaces contact the vertebral bodies, andwherein the interbody implant is actuated into the second configuration such that superior and inferior ...

Expandable Fusion Device and Method of Installation Thereof

An expandable fusion device is capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The fusion device may include a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. 1. An expandable device comprising:a first endplate;a second endplate;a translation member positioned in between the first endplate and second endplate, wherein movement of the translation member causes the first endplate and the second endplate to extend distally away from the translation member; andat least two stabilization members in direct contact with the translation member.2. The device of claim 1 , wherein the at least two stabilization members are not in direct contact with one another.3. The device of claim 1 , wherein the first endplate includes a textured outer surface for contacting a vertebral body.4. The device of claim 1 , wherein the translation member includes at least three angled ramped surfaces.5. The device of claim 4 , wherein the first endplate includes a plurality of angled grooves that correspond with the three angled ramped surfaces to support expansion and contraction of the fusion device.6. The device of claim 1 , wherein the at least two stabilization members are positioned adjacent to an anterior portion of the translation member.7. The device of claim 1 , wherein the at least two stabilization members are positioned adjacent a sidewall of the translation member.8. The device of claim 1 , further comprising a body portion for receiving the translation member in between the first endplate and second endplate.9. The device of claim 8 , wherein the at least two ...

INTERVERTEBRAL SPACER AND PLATE

Embodiments herein are generally directed to spinal implants, systems, apparatuses, and components thereof that can be used in spinal fusion and/or stabilization procedures, as well as methods of installation. The spinal implants may include an intervertebral spacer and a plate member. 1. A vertebral fusion device , comprising:a spacer member comprising a first mating element; anda fixation member comprising a first bore extending therethrough and a second mating element, the second mating element configured to articulably engage the first mating element.2. The vertebral fusion device of claim 1 , wherein the first mating element is disposed on a curved portion of an outer side surface of the spacer member.3. The vertebral fusion device of claim 2 , wherein the curved portion is located at a trailing end of the spacer member.4. The vertebral fusion device of claim 1 , wherein the first mating element comprises a groove.5. The vertebral fusion device of claim 1 , wherein the second mating element comprises a protrusion.6. The vertebral fusion device of claim 1 , wherein the fixation member is jointedly coupled to the spacer member.7. The vertebral fusion device of claim 1 , wherein the fixation member is configured to extend beyond an upper surface of the spacer member.8. The vertebral fusion device of claim 1 , further comprising a locking member configured to inhibit movement of the fixation member relative to the spacer member.9. A vertebral fusion device claim 1 , comprising:a first endplate comprising a first extension portion, the first extension portion comprising a first bore extending therethrough;a second endplate comprising a second extension portion, the second extension portion comprising a second bore extending therethrough;a first ramp configured to mate with the first and second endplates;a second ramp configured to mate with the first and second endplates;wherein the first and second bores each comprise an axis wherein at least one of the axes ...

BONE FUSION SYSTEM

A method and system for performing bone fusion and/or securing one or more bones, such as adjacent vertebra, are disclosed. The screws include a threaded tip connected to a main shaft and a threaded outer sleeve that rotates relative to the outer shaft until locked down. Independent rotation of the threaded outer sleeve relative to the threaded distal tip allows compression or distraction to modify the gap between the vertebral bodies. The screws are passed from the inferior to superior vertebra or superior to inferior, for example, through a trans-pedicular route to avoid neurological compromise. At the same time, the path of screw insertion is oriented to reach superior or inferior vertebra. An intervertebral cage of the system is configured for lateral expansion from a nearly straight configuration to form a large footprint in the disc space. The screws and cage may be combined for improved fixation with minimal invasiveness. 1. A bone screw comprising:a threaded tip;a main shaft having a proximal end and a distal end, the distal end of the main shaft connected to the threaded tip and extending proximally therefrom;a threaded outer sleeve having a proximal end, a distal end, and an interior surface defining an axial opening extending between the proximal end and distal end and having a proximal portion and a distal portion, wherein at least the distal portion of the interior surface is non-threaded, the axial opening has a diameter greater than the proximal end of the main shaft, and the threaded outer sleeve is extendable over and freely rotatable about the proximal end of the main shaft, anda stop member coupled to the main shaft proximal to and axially spaced apart from a proximal end of the threaded tip, the stop member abutting the threaded outer sleeve during rotation of the threaded outer sleeve to stop axial translation of the outer threaded sleeve relative to the threaded tip.2. The screw of claim 1 , wherein the proximal end of the main shaft has a ...

INTERVERTEBRAL DEVICES AND RELATED METHODS

Intervertebral devices and systems, and methods of their use, are disclosed having configurations suitable for placement between two adjacent vertebrae, replacing the functionality of the disc therebetween. Intervertebral devices and systems contemplated herein are implantable devices intended for replacement of a vertebral disc, which may have deteriorated due to disease for example. The intervertebral devices and systems are configured to allow for ample placement of therapeutic agents therein, including bone growth enhancement material, which may lead to better fusion between adjacent vertebral bones. The intervertebral devices and systems are configured for use in minimally invasive procedures, if desired. 1. A device , comprising:a base element;a first body portion slidably attached to the base and configured to move in at least a first direction with respect to the base, the first body portion including a first plurality of curvilinear surfaces,a second body portion slidably attached to the base and configured to move in at least a second direction with respect to the base, the second body portion including a second plurality of curvilinear surfaces,each of the first plurality of curvilinear surfaces configured to couple with a respective one of the second plurality of curvilinear surfaces, such that the second body portion at least rotates with respect to the base as the first body portion moves in the first direction.2. The device of claim 1 , wherein the first body portion includes a first engaging element and the second body portion includes a second engaging element claim 1 , the second engaging element configured to couple to the first engaging element.3. The device of claim 2 , wherein the first and second engaging elements are configured such that the coupling of the first and second engaging elements prevents movement of the second body portion in a third direction with respect to the base when a compression force is applied between the top surface of ...

Spinal Implant Device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or contracting the device in cooperation with a hinge assembly. 1. A spinal fusion device for implanting or placing between adjacent vertebrae comprising:a hollow body having an upper section with a top surface for contacting one vertebra and a lower section having a bottom surface for contacting an adjacent vertebra, said top surface and said bottom surface constructed and arranged for engaging the vertebra, each section having a depending sidewall opposite at least one joint having an aperture, said at least one joint constructed and arranged to receive a rod thereby forming a pivot assembly, a top sidewall being slidably mounted over a bottom sidewall, each sidewall constructed and arranged for engaging a distractor, positioned between said upper section and said lower section is a hollow body section,said hollow body section having a first end comprising an angled surface and a second end comprising an opening for disposing of a distractor; said hollow body section having at least one joint having an aperture constructed and arranged to receive said rod, said hollow body constructed and arranged for receipt of bone graft material.2. The spinal fusion device of claim 1 , wherein the distractor comprises:an actuator at one end of an elongated member disposed through the opening of the end of the hollow body section,a distractor body comprising protruding members, wherein the protruding members are engaged by slots or grooves in the sidewalls of the upper and lower sections, whereby the distance between the top and bottom surfaces is adjustable as the protruding members of the distractor body move within the slots or grooves, thereby moving the upper section relative to the lower section.3. The spinal fusion device of claim 2 , ...

Expandable interbody spacer device

An expandable interbody spacer ( 10 ) is provided that includes a pair of oppositely facing endplate components ( 20, 40 ) and an interior component that includes one or more vertically extending stacks of arranged C-clip members ( 70 ) radially surrounding one or more bosses ( 30 ) protruding interiorly from one of the endplates, wherein the size and configuration of the bosses and the C-clip members are designed to allow the incremental expansion of expandable interbody spacer.

Expandable Interbody Spacer

An expandable intervertebral spacer includes a body, a proximal end, and a distal end. The body includes quadrants that form a substantially cylindrical shape in a first configuration and a substantially cuboidal shape in a second configuration. Each quadrant includes a ramp portion with a ramp and a landing and a sliding portion with a sliding side and a foot. The ramp portion of a first quadrant engages the sliding portion of a second quadrant. The proximal end and the distal end couple with the plurality of quadrants and transfer an actuating force to expand the body from the first configuration to the second configuration.

SIZING INSTRUMENT FOR USE IN A SURGICAL PROCEDURE TO IMPLANT A STEMLESS HUMERAL COMPONENT

A stemless humeral component for replacing the humeral head of a patient's humerus includes a support flange having a number of cantilevered legs extending distally away from a bottom surface thereof. Instruments and methods for surgically installing the stemless humeral component are also disclosed. 1. (canceled)2. A method of performing a surgical procedure to implant a humeral component to replace the humeral head of a patient's humerus , comprising:selecting the humeral component to implant in the patient's humerus, the humeral component including (i) a circular-shaped flange, (ii) a threaded bore, and (iii) a number of viewing windows formed in the circular-shaped flange,aligning a threaded rod of an implant insertion tool with the threaded bore of the humeral component,rotating the implant insertion tool to align a number of alignment keys of the implant insertion tool with the number of viewing windows of the humeral component,advancing the number of alignment keys of the implant insertion tool into the number of viewing windows of the humeral component,threading the threaded rod of the implant insertion tool into the threaded bore of the humeral component, andimpacting the implant insertion tool to secure the humeral component to a resected humeral surface of a patient.3. The method of claim 2 , wherein threading the threaded rod of the implant insertion tool into the threaded bore of the humeral component comprises:gripping a body of the implant insertion tool, androtating a knob positioned at the proximal end of the body to thread the threaded rod positioned at the distal end of the body into the threaded bore of the humeral component.4. The method of claim 2 , wherein rotating the implant insertion tool to align the number of alignment keys of the implant insertion tool with the number of viewing windows of the humeral component comprises:gripping a body of the implant insertion tool, the body including the number of alignment keys of the implant ...

BONE GRAFT DELIVERY DEVICES, SYSTEMS AND KITS

A bone graft delivery kit includes a hollow tube having a proximal end and a distal end. The hollow tube is configured to convey graft material to a graft receiving area in a patient. The hollow tube can be connected to an implant. The kit further includes a plunger to facilitate moving the graft material through the hollow tube. 1. A bone graft delivery kit comprising:a hollow tube having a proximal end and a distal end, the hollow tube configured to convey graft material to a graft receiving area in a patient, the hollow tube connected to an implant; anda plunger to facilitate moving the graft material through the hollow tube.2. The kit of claim 1 , wherein the implant is a hollow cage3. The kit of claim 1 , wherein the implant includes openings configured for the passage of graft material therethrough.4. The kit of claim 1 , further comprising a detachable funnel adapted to connect to the proximal end of the hollow tube claim 1 , wherein the detachable funnel facilitates insertion of bone graft into the hollow tube.5. The kit of claim 1 , further comprising an installer/impactor configured to engage the proximal end of the hollow tube.6. The kit of claim 1 , further comprising removal pliers that are configured to engage the hollow tube and separate it from the implant.7. The kit of claim 1 , wherein the at least one hollow tube is preloaded with one of bone graft and bone morphogenic protein.8. A bone graft delivery kit comprising:at least one hollow tube constructed to receive bone graft and having a proximal end and a distal end;a funnel configured (i) to be disposed at the proximal end of the at least one hollow tube, (ii) to receive bone graft material and (iii) to deliver bone graft material into the at least one hollow tube; andat least one plunger adapted for inserting into the proximal end of the at least one hollow tube.9. The kit of claim 8 , further comprising an implant that is configured to engage the distal end of the hollow tube.10. The kit of ...

Bone structural device

A bone structural device including a plurality of bone structural segments, wherein adjacent bone structural segments are pivotally connected to one another about a pivot axis, and the bone structural segments are expandable in height, which is in a direction generally parallel to the pivot axis.

STAND-ALONE EXPANDABLE INTERBODY SPINAL FUSION DEVICE WITH INTEGRATED FIXATION MECHANISM

A stand-alone expandable interbody spinal fusion device, including a superior component, an inferior component, and an expansion mechanism operatively arranged to displace the superior component relative to the inferior component, the expansion mechanism including a threaded rod including a first end engaged with the superior component and a second end engaged with the inferior component, wherein when the threaded rod is rotated in a first circumferential direction, the superior component is displaced in a first direction relative to the inferior component. 1. A stand-alone expandable interbody spinal fusion device , comprising:a superior component;an inferior component; and,an expansion mechanism operatively arranged to displace the superior component relative to the inferior component, the expansion mechanism including a threaded rod including a first end engaged with the superior component and a second end engaged with the inferior component;wherein when the threaded rod is rotated in a first circumferential direction, the superior component is displaced in a first direction relative to the inferior component.2. The stand-alone expandable interbody spinal fusion device as recited in claim 1 , wherein:the expansion mechanism further comprises a gear rotatably connected to the inferior component; and,the second end is fixedly secured to the gear.3. The stand-alone expandable interbody spinal fusion device as recited in claim 2 , wherein the superior component comprises a threaded hole and the threaded rod is threadably engaged with the threaded hole.4. The stand-alone expandable interbody spinal fusion device as recited in claim 2 , wherein the expansion mechanism further comprises a threaded collar threadably engaged with the threaded rod.5. The stand-alone expandable interbody spinal fusion device as recited in claim 4 , wherein the threaded collar abuts against the superior component.6. The stand-alone expandable interbody spinal fusion device as recited in ...

Expanding intervertebral implants

A joint spacer has first and second endplates, with each having a bone engaging surface, and at least two cams with an inclined cam surface positioned on an opposite side. First and second slides, each having ramps with an inclined surface are engaged with the cams of the endplate. The first slide has an angled portion at an end, and the second slide has a hinge portion. A threaded shaft has a hinge portion connected to the slide hinge portion, connecting the shaft to the slide, enabling the shaft to pivot. A nut is threaded to the shaft, and can contact and interfere with the angled portion of the first slide to drive the first slide with respect to the second slide. This results in engagement of the cams and ramps to drive the endplates apart to increase the spacer height.

FIXATION MECHANISM FOR AN IMPLANT

An ankle prosthesis has a tibial component configured for attachment to a tibia of a person, and a talar component. The talar component has a first surface configured for facing the tibial component and a second surface configured for facing a talus of the person. The second surface has first and second arms attached to it, for pivoting or flexing outwardly in medial and lateral directions, respectively, to engage side surfaces of a previously formed slot in the talus. 120-. (canceled)21. A method of fixing an implant component to a bone , comprising:forming a slot in the bone, the slot having side edges;positioning the implant component adjacent the bone, so that first and second arms of the implant component fit within the slot; andpivoting or flexing the first and second arms towards respective side edges of the slot.22. The method of claim 21 , wherein the step of pivoting or flexing comprises advancing a wedge or cone between an end of the first arm and an adjacent end of the second arm.23. The method of claim 22 , wherein the step of advancing the wedge or cone includes rotating a threaded member attached to the wedge or cone.24. The method of claim 21 , wherein the slot is formed with an undercut claim 21 , andeach of the arms has a medial-lateral dimension that increases from a proximal side of each arm adjacent the second surface to a distal side of each arm opposite the proximal side thereof.25. The method of claim 21 , wherein:the slot is formed in cancellous bone,a respective lateral edge of each arm has a plurality of barbs, andthe pivoting or flexing step drives the barbs into the cancellous bone. This application claims priority to U.S. Provisional Patent Application Ser. No. 62/100,695, which was filed on Jan. 7, 2015, the entirety of which is herein incorporated by reference.This disclosure relates to medical devices generally, and more specifically to an implant suitable for attachment to at least one bone.Numerous ankle joint replacement ...

SURGICAL OPERATING INSTRUMENT FOR EXPANDABLE AND ADJUSTABLE LORDOSIS INTERBODY FUSION SYSTEMS

An operating instrument includes a housing, a chassis, a first and second drive shaft, a gear assembly, a switch assembly, and a bearing lock assembly. The first and second drive shafts each has a first portion supported by the chassis in the housing and a second portion extending out of the housing. The gear assembly includes a first gear member fixedly received on the first portion of the first drive shaft and a second gear member slidably received on the first portion of the second drive shaft. The switch assembly is operable to place the second gear member into engagement with the first gear member thereby coupling the second drive shaft with the first drive shaft to provide a first operating mode wherein the second drive shaft is rotatable with the first drive shaft, or displace the second gear member out of engagement with the first gear member thereby decoupling the second drive shaft from the first drive shaft to provide a second operating mode wherein the second drive shaft is non-rotatable with the first drive shaft. The bearing lock assembly is operable to lock the first and second drive shafts to the chassis whereby the first and second drive shafts are restricted from sliding out of the housing and are capable of freely rotating or unlock the first and second drive shafts from the chassis to allow the first and second drive shafts to slide out of the housing. 1. An operating instrument , comprising:a housing;a chassis;a first drive shaft and a second drive shaft each having a first portion supported by the chassis in the housing and a second portion extending out of the housing;a gear assembly comprising a first gear member fixedly received on the first portion of the first drive shaft and a second gear member slidably received on the first portion of the second drive shaft;a switch assembly operable to place the second gear member into engagement with the first gear member thereby coupling the second drive shaft with the first drive shaft to provide a ...

Spinal Fusion Implant

An implant includes a housing; a blade having a retracted position in the housing and an extended position where the blade extends outwardly from the housing; and a blade actuating component comprising a driven shaft portion and a blade engaging portion. The blade actuating component can move the blade between the retracted position and the extended position. In addition, the blade engaging portion of the blade actuating component has a substantially U-shaped configuration defined at least in part by a superior surface and an inferior surface. Also, when the blade is in the extended position, the superior surface of the blade engaging portion of the blade actuating component is substantially flush with a superior surface of the housing, and the inferior surface of the blade engaging portion of the blade actuating component is substantially flush with an inferior surface of the housing.

Devices and methods for transpedicular stabilization of the spine

According to some embodiments, a method of accessing an intervertebral space of a patient's spine in a minimally invasive manner compromises creating a passage from a posterior end of a pedicle of a vertebral member using a probe, advancing the probe through the pedicle and to a main body portion of the vertebral member, advancing the probe through a superior endplate of the vertebral member and into the intervertebral space and enlarging the passage using at least one tap to create an enlarged passage from a posterior of the pedicle to the intervertebral space. In some embodiments, the enlarged passage traverses at least three cortical layers of the vertebral member.

MINIMALLY INVASIVE CORPECTOMY CAGE AND INSTRUMENT

An assembly comprising an expandable corpectomy cage and an insertion instrument, wherein the expandable cage comprises an instrument attachment features, including mating holes on the sides of the outer sleeve, and a ball-shaped pocket on the endplate of the inner sleeve, and the insertion instrument features a tuning-fork shaped holder, which attaches to the mating holes on the implant's outer sleeve using small bosses which mate with the holes under the spring tension of the fork, and a lever with a spherical end that mates with the ball-shaped pocket in the inner sleeve endplate. 1. A method of inserting an expandable spinal corpectomy cage into a defect space between a pair of vertebral bodies , the cage comprising i) an outer member having a first endplate and opposing attachment features defining a rotation axis , and ii) an inner member having a second endplate , wherein the inner member is received within the outer member and is axially adjustable relative thereto in an axial direction thereof for adjusting the variable axial height of the cage , the method comprising the steps of:a) attaching the attachment features of the expandable cage to an insertion instrument,b) inserting the expandable cage into the defect space in an orientation in which the axis of the cage is substantially orthogonal to an axis of the spine, andc) manipulating the insertion instrument to rotate the expandable cage about the rotation axis so that the axis of the cage is substantially parallel to the axis of the spine.2. The method of wherein each of the outer and inner members are sleeves.3. The method of wherein the outer sleeve comprises an inner wall and an outer wall having a pair of recesses thereon adapted for mating with the instrument.4. The method of wherein the inner sleeve comprises an outer wall and an end plate having a substantially spherical pocket thereon adapted for mating with the instrument.5. The method of wherein the outer sleeve comprises an inner wall and an ...

Expandable intervertebral implant

An implant for therapeutically separating bones of a joint has two endplates each having an opening through the endplate, and at least one ramped surface on a side opposite a bone engaging side. A frame is slideably connected to the endplates to enable the endplates to move relative to each other at an angle with respect to the longitudinal axis of the implant, in sliding connection with the frame. An actuator screw is rotatably connected to the frame. A carriage forms an open area aligned with the openings in the endplates. The openings in the endplates pass through the carriage to form an unimpeded passage from bone to bone of the joint. The carriage has ramps which mate with the ramped surfaces of the endplates, wherein when the carriage is moved by rotation of the actuator screw, the endplates move closer or farther apart.

EXPANDABLE INTERVERTEBRAL CAGE ASSEMBLIES

An expandable assembly for insertion into an intervertebral space is presented. The assembly, in particular aspects, includes an elongate body comprising an upper portion and a lower portion, wherein the elongate body defines an internal longitudinal channel extending from a proximal opening to a distal cavity. The assembly may include an expander that is sized and shaped for insertion into the distal cavity, thereby selectively expanding the upper portion away from the lower portion. The elongate body may also include one or more bone graft windows a cap that is sized and shaped for insertion into the proximal opening. 1. An expandable cage for insertion into an intervertebral space , comprising:a cage body having a leading end, a trailing end, an upper portion and a lower portion, the upper portion having a an upper bone contact surface and an upper portion lower surface, the lower portion having a lower bone contact surface and a lower portion upper surface, wherein the upper portion and lower portion are connected and wherein the upper portion lower surface and lower portion upper surface define an internal space;an elongate expander positioned at least partially therein the internal space, wherein a proximal portion of the elongate expander defines an aperture in communication with the internal space wherein translation of the elongate expander proximally toward the trailing end of the cage body moves the cage body into an expanded position by separating at least a portion of the upper portion of the cage body from at least a portion of the lower portion of the cage body; andan actuating screw positioned within the aperture engaged with the proximal portion of the expander and having a screw head, wherein rotation of the actuating screw in a first direction moves the elongate expander proximally, and rotation of the elongate screw in a second direction moves the elongate expander distally;wherein, the cage body comprises a shoulder substantially adjacent the ...

In-situ formed intervertebral fusion device and method

An orthopedic device for implanting between adjacent vertebrae comprising: an arcuate balloon and a hardenable material within said balloon. In some embodiments, the balloon has a footprint that substantially corresponds to a perimeter of a vertebral endplate. An inflatable device is inserted through a cannula into an intervertebral space and oriented so that, upon expansion, a natural angle between vertebrae will be at least partially restored. At least one component selected from the group consisting of a load-bearing component and an osteobiologic component is directed into the inflatable device through a fluid communication means.

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.

ANTERIOR PROSTHETIC SPINAL DISC REPLACEMENT

The present invention relates generally to a prosthetic spinal disc for replacing a damaged disc between two vertebrae of a spine. The present invention also relates to a method for implanting a prosthetic spinal disc via anterior or anterior lateral implantation. Other surgical approaches for implanting the prosthetic disc may also be used. 1. An intervertebral prosthetic disc comprising:a first endplate having a first surface configured to substantially engage with a first vertebral body and a curved second surface, wherein the first endplate includes at least one stop;a second endplate having a first surface configured to substantially engage with a second vertebral body and a curved second surface configured to correspondingly engage the curved second surface of the first endplate, wherein the second endplate includes an opposing surface corresponding to each stop of the first endplate;wherein the first endplate and the second endplate complement each other to permit movement in a medial to lateral direction and in an anterior to posterior direction.2. The intervertebral prosthetic disc of claim 1 , wherein the first surface of the first endplate contains a first keel.3. The intervertebral prosthetic disc of claim 2 , wherein the first surface of the second endplate includes a second keel.4. The intervertebral prosthetic disc of claim 3 , wherein the first keel is configured to engage a groove in the first vertebral body.5. The intervertebral prosthetic disc of claim 4 , wherein the second keel is configured to engage with a groove in the second vertebral body.6. The intervertebral prosthetic disc of claim 5 , wherein at least one of the first and second keels has at least one slot extending a length downwardly from a distal edge of the keel to the base of the keel.7. The intervertebral prosthetic disc of claim 6 , wherein the at least one of the first and second keels includes a leading edge that includes a chamfer for aligning and inserting the keel into the ...

EXPANDABLE INTERVERTEBRAL CAGE ASSEMBLIES

An expandable assembly for insertion into an intervertebral space is presented. The assembly, in particular aspects, includes an elongate body comprising an upper portion and a lower portion. The assembly may include an expander that is sized and shaped for insertion between the upper portion and lower portion, thereby selectively expanding the upper portion away from the lower portion. The elongate body may also include one or more bone graft windows. 1. An expandable cage for insertion into an intervertebral space , comprising:a cage having an upper portion and a lower portion, the upper portion having an upper bone contact surface and an upper portion lower surface, the lower portion having a lower bone contact surface and a lower portion upper surface, wherein the upper portion and the lower portion each define a window configured to permit bone growth therethrough;an elongate expander positioned substantially therebetween the upper portion lower surface and the lower portion upper surface, the elongate expander defining a window therethrough, wherein longitudinal translation of the elongate expander causes the expander to act upon portions of the upper portion and the lower portion to expand the cage body by separating at least a portion of the upper portion from at least a portion of the lower portion, wherein, in an expanded position, at least a portion of the windows in each of the upper portion, lower portion, and elongate expander unobstructed with respect to one another when viewed from a top view.2. The expandable cage of claim 1 , wherein at least 50% of the windows in each of the upper portion claim 1 , lower portion claim 1 , and elongate expander are unobstructed with respect to one another when viewed from the top view.3. The expandable cage of claim 1 , wherein the longitudinal translation of the elongate expander in the proximal direction causes the expander to act upon portions of the upper portion and the lower portion to expand the cage body.4. ...

Expandable spinal implant system and method

A spinal implant comprises a first member defining a longitudinal axis and including a wall that defines an axial cavity and at least one lateral opening configured for disposal of an instrument. A second member is configured for disposal with the axial cavity and includes a wall having an axial surface disposed along a thickness thereof. The axial surface defines at least a portion of an axial opening and includes a plurality of gear teeth disposed therealong. The instrument is engageable with the teeth to axially translate the second member relative to the first member. Systems and methods of use are disclosed.

Expandable interbody fusion device

An expandable interbody fusion device includes superior and inferior endplates that are configured to receive a sequentially inserted stack of interlocking expansion members or wafers. The like-configured wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. One of the interlocking features includes a plurality of prongs projecting from an upper surface of the wafers and into a recess defined in the lower surface of an adjacent previously inserted like-configured wafer. The prongs and recesses are configured to prevent retrograde movement of each new wafer in a direction opposite the direction of insertion. Other interlocking features prevent movement in the direction of insertion, transverse to the insertion direction and vertically within the stack.

EXPANDABLE INTER-BODY FUSION DEVICES AND METHODS

An expandable curved inter-body fusion device is presented. The expandable curved inter-body fusion device can have a first plate, a second plate, and an insert positioned substantially therebetween the first plate and the second plate. The first plate, the second plate, and the insert define an interior cavity. Moving the insert longitudinally with respect to the first and second plates increases or decreases the distance of the first plate with respect to the second plate, effectively expanding the inter-body fusion device and increasing the volume of the interior cavity. 2. The curved expandable inter-body fusion device of claim 1 , wherein at least one of the first and second plates has at least one longitudinal sidewall extending substantially from its inner surface.3. The curved expandable inter-body fusion device of claim 2 , wherein the at least one of the first and second plates comprises two longitudinal sidewalls.4. The curved expandable inter-body fusion device of claim 1 , wherein the insert comprises a frame with two longitudinal frame sides and a longitudinal rail claim 1 , and wherein the longitudinal rail protrudes from an external surface of each of the longitudinal frame sides.5. The curved expandable inter-body fusion device of claim 4 , wherein each of the longitudinal rails comprises at least one ramp having an incline surface and a substantially flat surface.6. The curved expandable inter-body fusion device of claim 5 , wherein each of the longitudinal rails comprises a plurality of ramps.7. The curved expandable inter-body fusion device of claim 5 , wherein the first and second plates each have two longitudinal sidewall extending substantially from its inner surface claim 5 , and wherein the longitudinal sidewalls of the first plate substantially align with the longitudinal sidewalls of the second plate claim 5 , forming two sets of substantially aligned longitudinal sidewalls claim 5 , and wherein each set of substantially aligned ...

SURGICAL INSTRUMENT SYSTEM AND METHOD

A surgical instrument includes a body extending between a first end and a second end and includes at least one mating element engageable with an interbody implant. A first member is disposed with the body and engageable with the interbody implant to move the interbody implant between a first configuration and a second, expanded configuration. A second member is disposed with the body and engageable with the interbody implant to fix the interbody implant in a selected second configuration. Systems and methods are disclosed. 1. A surgical instrument comprising:a body extending between a first end and a second end including at least one mating element engageable with an interbody implant;a first member disposed with the body and engageable with the interbody implant to move the interbody implant between a first configuration and a second, expanded configuration; anda second member disposed with the body and engageable with the interbody implant to fix the interbody implant in a selected second configuration.2. A surgical instrument as recited in claim 1 , wherein the body includes a handle and a sleeve that defines at least one inner cavity for disposal of at least a portion of each of the members.3. A surgical instrument as recited in claim 1 , wherein the at least one mating element includes two bilateral tabs.4. A surgical instrument as recited in claim 1 , wherein the at least one mating element includes four tabs.5. A surgical instrument as recited in claim 4 , wherein the four tabs are disposed about the second member.6. A surgical instrument as recited in claim 1 , wherein the first member includes a pinion gear shaft engageable with teeth of the interbody implant.7. A surgical instrument as recited in claim 1 , wherein the first member includes a rotatable handle.8. A surgical instrument as recited in claim 1 , wherein the first member includes a handle comprising a provisional lock.9. A surgical instrument as recited in claim 1 , wherein the second member ...

IMPLANTABLE MEDICAL DEVICE FOR LUBRICATING AN ARTIFICIAL CONTACTING SURFACE

An implantable medical device, for implantation in a mammal knee joint, comprising an artificial contacting surface adapted to replace at least one contacting surface of the knee joint and to be lubricated when implanted in said joint. The medical device further comprises a reservoir comprising a movable wall portion defining the volume of the reservoir, at least one inlet adapted to receive a lubricating fluid from the reservoir, at least one channel at least partly integrated in said artificial contacting surface, wherein the channel is fluidly connected with said at least one inlet for distributing said lubricating fluid to the surface of said artificial contacting surface. The medical device further comprises an operation device adapted to non-invasively transport said lubricating fluid from said reservoir to said artificial contacting surface, and an implantable injection port for refilling said reservoir, wherein the movable wall portion is moved when the reservoir is refilled, such that the volume of the reservoir is increased. 1104.-. (canceled)105. An implantable medical device , for implantation in a mammal knee joint , comprising:an artificial contacting surface adapted to replace at least one contacting surface of the knee joint and to be lubricated when implanted in said joint;a reservoir comprising a movable wall portion defining the volume of the reservoir;at least one inlet adapted to receive a lubricating fluid from the reservoir;at least one channel at least partly integrated in said artificial contacting surface, wherein the channel is fluidly connected with said at least one inlet for distributing said lubricating fluid to the surface of said artificial contacting surface;an operation device adapted to non-invasively transport said lubricating fluid from said reservoir to said artificial contacting surface; andan implantable injection port for refilling said reservoir, wherein the movable wall portion is moved when the reservoir is refilled, such ...

Expandable inter-body fusion devices and methods

An expandable inter-body fusion device is presented. The expandable inter-body fusion device has a first plate and a second plate that can be manipulated to change the height and angle of lordosis. Also presented is a method of using an expandable inter-body fusion device in an inter-body fusion procedure, and a method of using an expandable trial to size the correct expandable inter-body fusion device for use in the aforementioned procedure.

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.

Surgically Implantable Joint Spacer

A spacer formed of an intermetallic compound, such as nitinol. The spacer includes two segments shaped in opposing arches. The unique properties of the intermetallic compound enable the material to be deformed into a planar, insertable shape when the material is cooled below a transition temperature and returns to the undeformed shape when the material returns to an ambient, operational temperature. An expansion mechanism assembly can engage with the spacer to apply an expansion force. The expansion force extends the spacer longitudinally drawing the spacer into the planar configuration. The expansion mechanism assembly can be used to guide the spacer into the desired position within the patient. The spacer control mechanism assembly is subsequently removed, relieving the expansion force. The spacer returns to the natural undeformed shape as it returns to body temperature. Retention features can be integrated in the spacer to aid in retaining the spacer in location.

Devices For Treating The Spine

Method and apparatus are disclosed for distracting tissue and particularly spinal tissue. The device and method may include insertion of at least one elongated member and an augmenting member to form a structure between the tissues to be distraction, such that a dimensional aspect of the structure is augmented upon movement of the augmenting structure. 186-. (canceled)87. A tissue distraction device , comprising:a first elongated member including a top portion, a bottom portion, and a plurality of deformable connection members extending between the top portion and the bottom portion; and the first elongated member is movable from a first configuration having a height to a second configuration having a greater height, and', 'insertion of at least a portion of the augmenting elongated member between the top portion and the bottom portion of the first elongated member causes deformation of the plurality of deformable connection members and movement of the first elongated member from the first configuration to the second configuration., 'an augmenting elongated member at least partially insertable between the top portion and the bottom portion of the first elongated member, wherein'}88. The tissue distraction device of claim 87 , wherein the first elongated member is formed of a polyether ether ketone material.89. The tissue distraction device of claim 87 , whereina longitudinal passage is defined between the top portion and the bottom portion of the first elongated member, andthe augmenting elongated member is at least partially insertable into the longitudinal passage to move the first elongated member from the first configuration to the second configuration.90. The tissue distraction device of claim 89 , wherein at least two of the plurality of deformable connection members are positioned at opposite lateral sides of the longitudinal passage.91. The tissue distraction device of claim 89 , whereinat least two of the plurality of deformable connection members are ...

Expandable intervertebral implant

An expandable intervertebral implant is provided for insertion into an intervertebral space defined by adjacent vertebrae. The expandable intervertebral implant includes a pair of outer sleeve portions and an inner core disposed between the outer sleeve portions. Movement of the inner core relative to the outer sleeve portions causes the outers sleeve portions to deflect away from each other, thereby engaging the expandable intervertebral implant with the vertebrae and adjusting the height of the intervertebral space.

MONOBLOCK IMPLANT AND METHOD FOR CERVICAL SPINE FUSION SURGERY

A monoblock implant for fusing a cervical motion segment includes (a) an interbody portion configured to be positioned between superior and inferior vertebral bodies, of the cervical motion segment, with a first side of the interbody portion facing a first uncinate joint of the cervical motion segment and a second side of the interbody portion facing a second uncinate joint of the cervical motion segment, (b) a first wing extending away from the first side to extend into the first uncinate joint, and (c) a second wing extending away from the second side to extend into the second uncinate joint. 1. A monoblock implant for fusing a cervical motion segment , comprising:an interbody portion configured to be positioned between superior and inferior vertebral bodies, of the cervical motion segment, with a first side of the interbody portion facing a first uncinate joint of the cervical motion segment and a second side of the interbody portion facing a second uncinate joint of the cervical motion segment;a first wing extending away from the first side to extend into the first uncinate joint; anda second wing extending away from the second side to extend into the second uncinate joint.2. The monoblock implant of claim 1 , being a rigid single piece.3. The monoblock implant of claim 2 , the interbody portion including a superior interbody surface configured to face the superior vertebral body and an inferior interbody surface configured to face the inferior vertebral body claim 2 , maximum distance between the superior and inferior interbody surfaces defining an axial extent of the interbody portion in an axial dimension claim 2 , each of the first and second wings being oriented at an oblique angle to the axial extent to reach beyond the superior interbody surface in the axial dimension.4. The monoblock implant of claim 3 , the axial extent decreasing along an anterior-to-posterior direction.5. The monoblock implant of claim 3 , distance by which each of the first and ...

PATIENT-SPECIFIC BONE FRACTURE PROSTHESES AND METHODS OF MAKING THE SAME

The invention concerns a method for manufacturing a prosthesis () for a fractured long bone of a patient, the method comprising the steps of: A) providing data representative of the fractured long bone, the fractured long bone comprising a diaphyseal fragment () comprising a medullary cavity (); B) based on said data, designing the prosthesis specifically to the patient, the prosthesis comprising a stem part () configured to be inserted into the medullary cavity, step B) comprising: a sub-step of choosing, specifically to the patient, a contact zone () of the medullary cavity onto which a respective chosen mechanical stress is planned to be applied by the stem part, and a sub-step of designing the stem part so that the stem part may be inserted into the medullary cavity and thus apply the chosen mechanical stress to said contact zone; and C) manufacturing the prosthesis designed at step B). 1. A prosthesis for a fractured long bone of a particular patient , the prosthesis comprising:a patient-specific stem part configured to be inserted into the medullary cavity of a diaphyseal fragment of the fractured long bone of the patient for securing the stem part to the diaphyseal fragment, wherein the patient specific stem part is configured to apply a chosen mechanical stress to at least one contact zone of the medullary cavity chosen for a specific patient.2. The prosthesis of claim 1 , wherein the patient-specific stem part is configured based on data representative of the fractured long bone of a particular patient.3. The prosthesis according to claim 1 , wherein the patient specific stem part comprises claim 1 , specifically to the patient:a coverable diaphyseal portion, including at least a part of the stem part and being configured to be covered by the diaphyseal fragment when the stem part is inserted into the medullary cavity, whereas the rest of the stem part is left uncovered by the diaphyseal fragment; anda first visible mark, visually delimiting the coverable ...

Medical Implant for Fixation and Integration with Hard Tissue

The invention relates to medical implants, including spinal implants and bone grafts, for fixation and integration with hard tissue. The bone medical implants include at least one rotational fixation mechanism that further includes or is attached to one or more sharp protrusions configured to penetrate and become lodged into hard tissue to provide support and positional stability. Such support is useful to ensure that the spinal bone graft may be used without additional stabilizing or anchoring structures, such as supporting plates or screws.

Interbody Fusion Device And System For Implantation

An implant includes a body and a bone fixation system. The body includes an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction. In addition, the bone fixation system includes at least one blade disposed within the interior area of the body in an insertion position. Also, the bone fixation system further includes at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body. Further, the at least one blade has a substantially U-shaped cross-sectional shape in a horizontal plane substantially perpendicular to the vertical direction. 1. An implant comprising:a body; anda bone fixation system;the body including an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction;the bone fixation system including at least one blade disposed within the interior area of the body in an insertion position; andthe bone fixation system further including at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body;wherein the at least one blade has a substantially U-shaped cross-sectional shape in a horizontal plane substantially perpendicular to the vertical direction.2. The implant of claim 1 , wherein the at least one blade includes a first blade deployable past the superior surface of the implant and a second blade deployable past the inferior surface of the implant; ...

BONE STRUCTURAL DEVICE

A bone structural device including a plurality of bone structural segments, wherein adjacent bone structural segments are pivotally connected to one another about a pivot axis, and the bone structural segments are expandable in height, which is in a direction generally parallel to the pivot axis. 1. A bone structural device comprising:a plurality of bone structural segments, wherein adjacent bone structural segments are pivotally connected to one another about a pivot axis, and said bone structural segments are expandable in height, which is in a direction generally parallel to said pivot axis.2. The bone structural device according to claim 1 , wherein at least some of said bone structural segments are expandable independently from one another.3. The bone structural device according to claim 1 , wherein at least some of said bone structural segments are expandable to different heights.4. The bone structural device according to claim 1 , wherein said bone structural segments are made of a resorbable claim 1 , tissue-compatible material.5. The bone structural device according to claim 1 , wherein at least some of said bone structural segments are pivotally interconnected by resilient links.6. The bone structural device according to claim 1 , wherein said bone structural segments are linked to each other by one or more unidirectional hinges.7. The bone structural device according to claim 1 , wherein said bone structural segments are linked to each other by one or more multidirectional hinges.8. The bone structural device according to claim 1 , wherein said bone structural segments are lockable in place by a locking mechanism.9. The bone structural device according to claim 1 , wherein said bone structural segments are movable after installation in a body.10. The bone structural device according to claim 1 , wherein said bone structural segments form a closed ring-shaped structure.11. The bone structural device according to claim 1 , wherein at least some of said bone ...

HYDROGEL IMPLANTS WITH POROUS MATERIALS AND METHODS

Disclosed is an implant for implantation in a joint that includes a first portion, a second portion, and a third portion. The first portion includes a hydrogel. The second portion includes a porous material and the hydrogel in pores of the porous material. The third portion includes the porous material. The first portion is free of the porous material, the third portion is free of the hydrogel, and the pores of the porous material in the second portion are different than the pores of the porous material in the third portion. 1. An implant configured for implantation in a joint , the implant comprising:a first portion comprising a hydrogel;a second portion comprising a porous material and the hydrogel in pores of the porous material, the porous material comprising at least one of metal or plastic; anda third portion comprising the porous material, the first portion being free of the porous material, the third portion being free of the hydrogel,wherein pores of the porous material in the second portion are different than the pores of the porous material in the third portion.2. The implant of claim 1 , wherein the lateral dimension of the first portion is larger than a lateral dimension of the third portion.3. The implant of claim 1 , wherein the implant is load bearing and non-biodegradable.4. The implant of claim 1 , wherein the implant comprises a frustoconical shape.5. The implant of claim 1 , wherein the implant comprises a pyramid shape.6. The implant of claim 1 , wherein the porous material in the second portion and the third portion comprises a disc shape.7. The implant of claim 1 , wherein the porous material in the second portion and the third portion comprises a frustoconical or pyramid shape.8. The implant of claim 1 , wherein the porous material has a porosity between 45 ppi and 80 ppi claim 1 , and wherein pores of the porous material have a dimension between 100 μm and 500 μm.9. The implant of claim 1 , wherein the porous material has a porosity between ...