Implant which can be used as replacement for spongy bones - is built up from tolerated fibres which are implanted in bone cut=out

A network which is stable in structure, and space-filling is constructed from threads or fibres which will not be rejected by the body, and can be implanted as a replacement for spongy bones. The threads or fibres may be of metals, metal alloys, ceramics, carbon and/or synthetics. At their crossing points the threads are joined by welds, etc. A shaped object may be produced from the network by pressing or embossing and immediately after cutting or dividing, forms the implant. The network may be shaped into a wedge, square, disc, etc. or a core with an envelope. The process develops implantation techniques so that after a short time the defective bone structure can stand the stresses encountered during normal use.

Wirbelsäulen-Implantat, Werkzeuge zum einbringen von Implantaten zwischen 2 Wirbelkörper einer Wirbelsäule und Operationsset

Die Erfindung bezieht sich auf ein Wirbelsäulen-Implantat sowie auf Werkzeuge zum Einbringen von Implantaten zwischen zwei Wirbel und auf Operationssets.

Intervertebral devices

The intervertebral fusion device (200) comprises a superior component (220), an inferior component (240) and a core component (260).The superior and inferior components (220, 240) are received in an intervertebral space between first and second vertebrae whereby the superior component top side abuts against the first vertebra, the inferior component bottom side abuts against the second vertebra, and the superior component bottom side and the inferior component top side oppose each other. A height of the intervertebral fusion device is determined upon insertion of the core component (260) between the superior and inferior components (220, 240). Each of the superior component top side and the inferior component bottom side is one of: oblong having a major axis; and square, being bounded by four edges. During insertion of the core component (260) a first core profile of the core component cooperates with a superior component profile at the superior component bottom side and a second core profile ...

ANATOMICAL INTERMEDIATE BODY IMPLANT

SPINAL COLUMN IMPLANT AND CUTTING TOOL PREPARATION ACCESSORIES FOR USING THE IMPLANT

SPONGIÖS METALLIC IMPLANT AND PROCEDURE FOR ITS PRODUCTION

SYSTEMS FOR THE SPINAL COLUMN SURGERY

STABILIZATION SYSTEM FOR THE INTERMEDIATE EDDY RANGE

BONE REPLACEMENT.

SPREADING IMPLANT FOR ARRANGEMENT BETWEEN EDDIES OF THE SPINAL COLUMN

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

Method for preparing synthetic bone substitutes with controlled porosity

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, ...

Bone supplementing material

Anatomical interbody implant and gripper for same

Soft and calcified tissue implants

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.

Adjustable implant and insertion tool

An adjustable spinal implant includes a lower body, an upper body, a locking pawl, and a locking key. The upper body and the lower body are pivotable relative to one another between a collapsed position and an expanded position. The upper body includes a locking flange that extends towards the lower body. The locking pawl is coupled to the lower body and is moveable between a locked position such that the upper and lower bodies are fixed relative to the one another and an unlocked position such that the upper and lower bodies are moveable relative to one another. The locking key is moveable between a locked state such that the locking pawl is fixed in the locked position and an unlocked state wherein the locking pawl is moveable between the locked position and the unlocked position.

Apparatus for bone fixation

An orthopedic implant can be used for fixation of a joint or fracture and can include a tapered member and at least one fixation member. The tapered member can be configured for placement in association with one or more bone segments. The tapered member can have a longitudinally extending body that defines an upper surface portion, an opposed lower surface portion and first and second sides, where at least the first and second sides can be formed of porous metal and can have a porous metal outer surface. The at least one fixation member can be integrally formed with the tapered member and can extend laterally outwardly from the tapered member body. The at least one fixation member can be configured to secure the implant to the one or more bone segments to provide fixation of the one or more bone segments relative to the tapered member.

Tissue pooling process

ALLOGRAFT IMPLANT

An allogenic implant for use in intervertebral fusion is formed from one or more two pieces. The pieces are made from bone, and are joined together to form an implant having sufficient strength and stability to maintain a desired distance between first and second vertebrae in a spinal fusion procedure. The implant pieces may be formed of cortical bone and connected by dovetail joints, and at least one cortical bone pin may be provided to lock the pieces together and to add strength to the implant. Teeth are formed on the vertebra engaging surfaces of the implant prevent short-term slippage of the implant.

ALLOGRAFT IMPLANT

An allogenic implant for use in intervertebral fusion is formed from one or more two pieces. The pieces are made from bone, and are joined together to form an implant having sufficient strength and stability to maintain a desired distance between first and second vertebrae in a spinal fusion procedure. The implant pieces may be formed of cortical bone and connected by dovetail joints, and at least one cortical bone pin may be provided to lock the pieces together and to add strength to the implant. Teeth are formed on the vertebra engaging surfaces of the implant prevent short-term slippage of the implant.

MEDICAL DEVICE AND METHOD

A device (1) for impacting an implant, comprising: a first surface (2) for engaging, in use, with the implant; and a second surface (3) for engaging, in use, with a shaft having a proximal end and a distal end, wherein the first surface (2) and the second (3) surface are not parallel to one another, and wherein, in use, the distal end of the shaft releasably engages with the second surface (3) of the device such that when force is applied to the proximal end of the shaft the force is transferred via the device (1) to the implant, thereby impacting the implant. A method for implanting an implant using such a device (1).

PROCEDURE FOR THE PRODUCTION OF AN IMPLANT AS BONE REPLACEMENT.

Spinal fusion cage having post-operative adjustable dimensions

A spinal implant (100) including first spinal attachment member (104) for attaching to a first spinal portion (101), second spinal attachment member (103) for attaching to a second spinal portion, and a post - implantation variable dimension device disposed between the first and second spinal attachment members, which is operable after completing surgery in which said spinal implant was installed into a patient, to cause relative movement between the first and second spinal attachment members.

System, device and method for anterior intervertebral fusion with fixation

A system, device, and method are disclosed for anterior intervertebral fusion with fixation. An intervertebral fusion with fixation device includes a spacer configured to fit into a disc space between plural vertebrae, the spacer including through holes between and through plural sidewalls. A first fixating element is rigidly preloaded in a first portion of the spacer along a first linear trajectory. A second fixating element is rigidly preloaded in a second portion of the spacer along a second linear trajectory. An integrated drill and screwdriver instrument is adapted to extend through a cannula of the first fixating element and second fixating element and penetrate the vertebra.; The instrument is further adapted to drive the head of the first fixating element and second fixating element into the vertebra and lock the first fixating element and second fixating element with respect to the spacer to prevent extrusion from the spacer.

SPINAL IMPLANT WITH A SELF CONTAINED MEANS FOR LOCKING AND UNLOCKING

INTERSOMATIC CAGE WITH ADJUSTABLE COVER AND METHOD OF MAKING SAME

L'invention concerne une cage (1) intersomatique expansible destinée à être implantée entre un premier corps vertébral (4) et un deuxième corps vertébral (5) d'un patient, ladite cage (1) comprenant : - un corps de cage (2), comprenant une surface d'appui (6A) destinée à être positionnée en appui contre le premier corps vertébral (4), - un couvercle d'expansion (3) monté sur le corps de cage (2) pour pouvoir pivoter par rapport à la surface d'appui (6A), ledit couvercle d'expansion (3) comprenant un élément d'appui (3A) contre le deuxième corps vertébral (5), la course d'inclinaison s'étendant entre : ○ une inclinaison minimale dudit couvercle d'expansion (3), et ○ une inclinaison maximale dudit couvercle d'expansion (3) - un moyen de commande (16) de l'inclinaison du couvercle d'expansion (3). Implants chirurgicaux.

INTERBODY SPINE FUSION CAGE

endoprótese de articulação de tornozelo

A PROSTHETIC IMPLANT, AND A METHOD AND TOOL FOR THE INSERTION OF SAME

Disclosed herein is a prosthetic implant, a tool assembly for positioning the prosthetic implant, and a method of placing a prosthetic implant. The prosthetic implant includes an anterior end and an opposite, smaller, posterior end. Left and right side portions attach the anterior end to the posterior end. Each of the left and right side portions includes serrations on the top and bottom. The serrations on the top are directed substantially opposite the direction of the serrations on the bottom. Adjacent serrations can be separated by a radius. The implant includes tooling apertures for receiving corresponding portions of a tool assembly. The tool assembly includes an inner tool and an outer tool. The inner tool can engage the implant and can seat the outer tool to the implant. The outer tool can be used to exert a rotational force to the implant to rotate the implant to a desired orientation.

HEIGHT- AND ANGLE-ADJUSTABLE MOTION DISC IMPLANT

This invention relates to an intervertebral motion disc having a height adjutable endplate.

INTERIOR CONNECTING INTERBODY CAGE INSERTIONAL TOOLS, METHODS AND DEVICES

Interior connecting interbody cage insertional tools, methods and devices are provided wherein the same can be utilized for making placement of interbody cages (11, 100', 200, 200') more accurate, safer and less likely to violate the structural integrity of the interbody cage (11, 100', 200, 200') while providing support to a leading end of the cage (11, 100', 200, 200') as the leading end re-capitulates or distracts the disc space as the cage (11, 100' 200, 200') is inserted.

VERTEBRAL INTERBODY CAGE WITH TRANSLATABLE LOCKING SCREW

A vertebral cage is provided for use in preserving the space between adjacent vertebral during the process of spinal fusion. In particular, this cage has an open modified oval peripheral shape with a continuous fluid anterior wall having angled screw passages accessible through co-planar openings to allow the construct to be stabilized between adjacent vertebral bodies through their endwalls. In addition, the cage has a back to front wedge taper with pull-out resistant ratchet surfaces. Further, in a second aspect of the invention, the screw passages have a unique locking mechanism provided by oversized internal threads in combination with a second locking thread on the head of the associated bone screws that allows for axial translation of the screws within the screw passages. This in turn permits play in the angulation of the screw relative to the anchoring bone in order to optimize the screw placement in the bone.

INSTRUMENTATION AND PROCEDURE FOR IMPLANTING SPINAL IMPLANT DEVICES

An instrumentation set may include insertion instruments for forming an implant between bone structures. The insertion instruments may include a spreader (400) and a separator (300). The bone structures may be vertebrae. Implant members (12) may be attached to the spreader and positioned between the bone structures. The separator may be inserted into the spreader to establish a desired separation distance between the implant members. Connectors (14) may be inserted into the implant members to join the implant members together and form the implant. The insertion instruments may be removed. A seater (1100) may be used to set the position of the connectors relative to the implant members to inhibit disassembly of the implant.

SPINAL IMPLANT AND CUTTING TOOL PREPARATION ACCESSORY FOR MOUNTING THE IMPLANT

This invention relates to a spinal implant (110) for promoting fusion of adjacent vertebrae and restoration of normal disc height. The spinal implant includes an upper and lower surface (120, 122) adapted to engage cancellous bone tissue in the vertebral bodies. The spinal implant also includes at least two opposing bearing surfaces (138, 140) adapted to bear against cortical bone tissue in the endplates of adjacent vertebrae. This invention also provides an instrumentation to prepare the intervertebral space to receive the spinal implant and techniques for treating patients in need of corrective spinal surgery.

MEDICAL AND DENTAL IMPLANT DEVICES FOR CONTROLLED DRUG DELIVERY

Implantable devices and methods for use in the treatment of osteonecrosisare provided. The device includes at least one implant device body adapted for insertion into one or more channels or voids in bone tissue,- a plurality of discrete reservoirs (14) , which may preferably be microreservoirs , located in the surface of the at least one implant device body; and at least one release system disposed in one or more of the plurality of reservoirs, wherein the release system includes at least one drug (15, 20) selected from the group consisting of bone growth promoters, angiogenesis promoters, analgesics, anesthetics, antibiotics, and combinations thereof . The device body may be formed of a bone graft material, a polymer, a metal, a ceramic, or a combination thereof . The device body may be a monolithic structure, such as one having a cylindrical shape, or it may be in the form of multiple units, such as a plurality of beads.

INTERFIXATED VERTEBRAL BODY REPLACEMENT AND INSERTION METHODS

Implants and instruments for providing an ideal trajectory for the insertion of instruments and screws during implantation of an interbody implant in a spinal surgery are disclosed.

Variable lordosis spacer and related methods of use

An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. An inserter instrument includes an outer shaft having a bore extending longitudinally therethrough and an inner shaft extending through the bore in the outer shaft. The outer shaft is configured to engage the first or second opening in the second ramp, and the inner shaft is configured to engage the corresponding first or second opening in the first ramp to control implant height and/or lordotic angle.

EXPANDABLE IMPLANT ASSEMBLY

An expandable implant includes an upper main support of bone, a lower main support coupled to the upper main support, the lower main support comprising a first coupling feature and a second coupling feature being substantially parallel to the first coupling feature, and a control assembly configured to control relative movement between the upper main support and the lower main support, the control assembly including a first control member configured to engage the upper main support and the lower main support and interface with the first coupling feature a second control member configured to engage the upper main support and the lower main support and interface with the second coupling feature, and a control shaft configured to be received by the first control member and the second control member, wherein manipulation of the control shaft causes relative movement between the upper main support and the lower main support.

Radiolucent bone graft

An improved bone graft is provided for human implantation, bone graft includes a substrate block of high strength biocompatible material having a selected size and shape to fit the anatomical space, and a controlled porosity analogous to natural bone. The substrate block may be coated with a bio-active surface coating material such as hydroxyapatite or a calcium phosphate to promote bone ingrowth and enhanced bone fusion. Upon implantation, the bone graft provides a spacer element having a desired combination of mechanical strength together with osteoconductivity and osteoinductivity to promote bone ingrowth and fusion, as well as radiolucency for facilitated post-operative monitoring. The bone graft may additionally carry one or more natural or synthetic therapeutic agents for further promoting bone ingrowth and fusion.

Inter-vertebral implant

PCT No. PCT/CH96/00346 Sec. 371 Date Feb. 2, 1998 Sec. 102(e) Date Feb. 2, 1998 PCT Filed Oct. 3, 1996 PCT Pub. No. WO97/15248 PCT Pub. Date May 1, 1997An inter-vertebral implant having of a frame-like cage (1) enclosing a space (20), with a top and bottom surface (11,12), two side surfaces (13, 14), a front (16) and a rear wall (15). The top and bottom surfaces (11, 12) have a plurality of perforations (24), the total area of which amounts to 40 to 55% of the total area of said surfaces (11, 12). The individual area of a single perforation (24) is at most 20% of the total area of the top and bottom surfaces (11, 12). The ratio VH/VK between the volume VH of the space (20) and the total volume VK of the cage (1) is in the range from 70 to 90%. The cage (1) is substantially wedge-shaped with top and bottom surfaces (11, 12) diverging towards the front wall (16). This gives the advantage that, owing to the large bone bearing area of the top and bottom surfaces, the implant is prevented from ...

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.

STAND ALONE INTERVERTEBRAL FUSION DEVICE

An angled fixation device, such as an angled screw. This angled fixation device may be used by the surgeon to secure a spacer to a spinal disc space. The proximal end portion of the angled fixation device is driven perpendicular to the anterior wall of the spacer, and so is parallel to the vertebral endplates and in-line with the inserter. The distal end portion of the angled fixation device is oriented at about a 45 degree angle (plus or minus 30 degrees) to the vertebral endplate it enters.

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.

SYSTEMS AND METHODS FOR SPINAL FUSION

A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites.

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.

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 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.

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.

Surgical plate systems

Improved bone plate systems are described herein. In some instances, a bone plate system can include a base plate, at least one retainer plate, and at least one spacer. The at least one retainer plate is configured to reside on the base plate in a free floating manner and can receive at least one fastener to secure the retainer plate to the at least one spacer, thereby providing a plate system that attaches to a spacer. In other instances, a bone plate system can include a base plate having one or more push plates that can engage at least one spacer.

SYSTEMS FOR SPINAL SURGERY

Zwischenwirbel-lmplantat

Zur besseren Anpassung eines Zwischenwirbel-Implantats an die Konturen von diesem zugewandten Unter- und Oberseiten der durch das Implantat auf Abstand gehaltenen Wirbeln sieht die Erfindung bei einem solchen Zwischenimplantat mit einem Stützabschnitt (1.1) und einem sich an diesem in Längsrichtung anschließenden proximalen Angriffsabschnitt (1.3) vor, dass eine Oberseite (1.6) und eine Unterseite (1.7) symmetrisch zu einer Horizontalmittelebene (L-Q) ausgebildet sind, wobei insbesondere die Höhe des Stützabschnitts zwischen dessen Übergang (U) zum Angriffsabschnitt (1.3) und einer dem Angriffsabschnitt (1.3) abgewandten distalen Stirnseite (1.2) größer ist als die Höhe beim Übergang (U) und an der distalen Stirnseite (1.2).

Body augmenter for vertebral body reconstruction

Intervertebral devices

Intervertebral devices

PROCEDURE FOR THE PRODUCTION OF A MEDICAL IMPLANT AND SO MANUFACTURED IMPLANT

ROENTGEN-PERMEABLE BONE TRANSPLANT

APPARATUS FOR THE FUSION OF NEIGHBOURING ONES BONE STRUCTURES

SYSTEMS FOR THE RE-ESTABLISHMENT AND PRESERVATION A INTERVERTEBRALEN OF AN ANATOMY

ALLO IMPLANT

BUILT IMPLANT

PROCEDURE FOR BLENDING FABRICS

INTERMEDIATE EDDY FUSION IMPLANT

FROM ALLOGENEM TRANSPLANT FABRIC MANUFACTURE COMPOUND BONE STRUCTURE

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

ANATOMICAL INTERMEDIATE BODY IMPLANT

Systems and techniques for restoring and maintaining intervertebral anatomy

Surgical implant with guiding rail

A prosthetic intervertebral spacer (10) is disclosed. The spacer (10) preferably includes a body (12) and an interface (26) extending away from the body (12) for use during implantation of the spacer (10). Methods of implanting the spacer (10) and tools (50) used during such procedure are also disclosed.

Expandable implant device

Expandable implant devices including first and second endplates, wherein a first side of the first endplate is moveably attached to a first side of the second endplate; and an expansion mechanism is disposed between the first and second endplates adjacent the second side of the endplates opposite the first side, wherein actuating the expansion mechanism changes an angle between the first endplate and the second endplate.

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.

Intervertebral insert system

A system for delivering fluid to a space between two vertebrae is provided. The system includes a tool and an insert configured to be implanted in the space between two vertebrae. The tool includes a proximal end, a distal end and a structure at the distal end configured to be coupled to the insert. The tool further includes a first opening located near the proximal end of the tool, a second opening located near the distal end of the tool, and a passage extending between the first opening and the second opening. The first opening, the passage and the second opening provide a fluid delivery path from the proximal end to the exterior of the tool near the distal end. The second opening is positioned relative to the structure such that fluid is permitted to be delivered from the tool directly into the space between the two vertebrae.

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.

Vertebral spacer

A vertebral spacer includes a body having a top side, a bottom side, a front side, and a rear side. The top side is configured to be positioned adjacent to a first vertebra and the bottom side is configured to be positioned against a second vertebra. First, second, third and fourth bores extend through the body. First and second compression fasteners disposable in the first and third bores, and first and second locking fasteners disposable in the second and fourth bores. The first compression fastener and the first locking fastener cooperate to apply and lock a first predetermined compression force between the body and the first vertebra. The second compression fastener and the second locking fastener cooperate to apply and lock a second predetermined compression force between the body and the second vertebra.

Vertebral joint implants and delivery tools

A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.

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.

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.

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 ...

VARIABLE LORDOSIS SPACER AND RELATED METHODS OF USE

An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. An inserter instrument includes an outer shaft having a bore extending longitudinally therethrough and an inner shaft extending through the bore in the outer shaft. The outer shaft is configured to engage the first or second opening in the second ramp, and the inner shaft is configured to engage the corresponding first or second opening in the first ramp to control implant height and/or lordotic angle. 1. A medical system comprising: an upper endplate;', 'a lower endplate opposed to the upper endplate;', 'a first ramp positioned between the upper endplate and the lower endplate, wherein the first ramp includes a first upper angled surface that engages the upper endplate and a first lower angled surface that engages the lower endplate;', 'a second ramp positioned between the upper endplate and the lower endplate, wherein the second ramp includes a second upper angled surface that engages the upper endplate and a second lower angled surface that engages the lower endplate; and', 'an actuation mechanism insertable into the first ramp and the second that causes expansion between the upper endplate and the lower endplate,', 'wherein the first ramp includes a first bore for receiving the actuation mechanism and a second bore for receiving graft material,', 'wherein the second ramp includes a second bore for receiving the actuation mechanism and the second bore for receiving graft material,', 'wherein the first bore of the first ramp is substantially aligned with first bore of the second ramp, and the second bore of the second ramp is substantially aligned with the second bore of the second ramp., 'an expandable device comprising2. The system of claim 1 , wherein the first ramp is configured to move toward the second ramp to cause expansion between the upper endplate ...

Methods and Apparatus for Performing Spine Surgery

Systems and methods are described for correcting sagittal imbalance in a spine including instruments for performing the controlled release of the anterior longitudinal ligament through a lateral access corridor and hyper-lordotic lateral implants. 1. A method for correcting saggital imbalance of a lumbar spine , comprising the steps of:inserting an access system along a lateral, trans-psoas path to a target site on the lumbar spine to create an operative corridor to the target site;preparing the intervertebral space between first and second vertebra of the lumbar spine for receipt of an intervertebral implant, the intervertebral space being at least partially defined by an anterior aspect, a posterior aspect, and opposing first and second lateral aspects;advancing a tissue retractor through the operative corridor along the lateral, trans-psoas path to a protective position in which a protective head of the tissue retractor is positioned between the Anterior Longitudinal Ligament (ALL) and the anterior vasculature, the tissue retractor protective head including an inner surface that faces the ALL and an outer surface that that faces the anterior vasculature when the tissue retractor is in the protective position, a distal end of the protective head being curved such that the distal end curves around the anterior aspect of the target site,advancing a cutting blade along the inner surface of the tissue retractor protective head and severing the Anterior Longitudinal Ligament (ALL) with the cutting blade; andadvancing and intervertebral implant through the operative corridor along the lateral, trans-psoas path and depositing the intervertebral implant into the intervertebral disc space.2. The method of claim 1 , wherein the intervertebral implant includes an upper surface that contacts the first vertebra and a lower surface that contacts the second vertebra claim 1 , a distal wall claim 1 , a proximal wall claim 1 , an anterior sidewall that faces anteriorly claim 1 , ...

SURGICAL IMPLANT WITH GUIDING RAIL

A prosthetic intervertebral spacer is disclosed. The spacer preferably includes a body and an interface extending away from the body for use during implantation of the spacer. Methods of implanting the spacer and tools used during such procedure are also disclosed. 1. (canceled)2. A prosthetic intervertebral spacer comprising:a body having front and rear ends, anterior and posterior sides each extending from the front end to the rear end, and top and bottom surfaces each extending from the front end to the rear end and from the anterior side to the posterior side; andan interface for engaging a tool, the interface extending from a surface at the rear end of the body along an arcuate path, wherein a cross-section of the interface in a plane extending between the top and bottom surfaces is defined by a neck portion extending from the surface at the rear end of the body and a lip portion extending from the neck portion, the lip portion being wider than the neck portion in a direction extending between the top and bottom surfaces.3. The spacer of claim 2 , wherein the interface is connected to the body along an arcuate periphery of the body from a rear-facing surface to a posterior-facing surface of the body.4. The spacer of claim 2 , wherein the neck portion separates the lip portion from the body at a first rail segment.5. The spacer of claim 4 , further including a second rail segment separated from the first rail segment by a notch.6. The spacer of claim 5 , wherein the first rail segment is disposed on the rear end of the spacer claim 5 , and the second rail segment is disposed on the posterior side of the spacer.7. The spacer of claim 2 , wherein the neck portion and the lip portion form a T-shape.8. The spacer of claim 2 , wherein the rear end is curved.9. The spacer of claim 9 , wherein curves of the rear end and at least a portion of the arcuate path lie on concentric circles.10. The spacer of claim 2 , wherein the front end is curved.11. The spacer of claim 2 ...

SYSTEMS AND METHODS FOR SPINAL FUSION

A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites. 1an interbody spinal fusion implant, including at least in part a top surface for contacting a first vertebral endplate, a bottom surface for contacting a second vertebral endplate, at least one fusion aperture extending between the top surface and the bottom surface to allow bony fusion between the first vertebral endplate and the second vertebral endplate, a distal side, a proximal side having at least one receiving aperture for engaging an insertion instrument, and two lateral sides; andan insertion instrument, including a generally elongated tubular member having a distal opening and a proximal opening, a generally elongated shaft member having a distal end and a proximal end and being generally dimensioned to be inserted through the elongated tubular member such that the distal end extends beyond the distal opening and the proximal end extends beyond the proximal opening, and the distal end including an implant engagement feature; anda securing mechanism for releasably securing the engagement feature in one or more receiving apertures of the implant.. A spinal fusion system comprising: This application is a continuation of U.S. patent application Ser. No. 14/921,760 filed Oct. 23, 2015, which is a continuation of U.S. patent application Ser. No. 14/314,823 filed Jun. 25, 2014 (now U.S. Pat. No. 9,180,021), which is a continuation of U.S. patent application Ser. No. 14/171,484 filed Feb. 3, 2014 (now U.S. Pat. No. 8,814,940), which is a continuation of U.S. patent application Ser. No. 14/066,285 filed Oct. 29, 2013 (now U.S. Pat. No. 8,685,105), which is a continuation of U.S. patent application Ser. No. 13/748,925 filed Jan. 24, 2013 (now U.S. Pat. No. 8,574,301), which is a continuation of U.S. patent application Ser. No. ...

SURGICAL PLATE SYSTEMS

Improved bone plate systems are described herein. In some instances, a bone plate system can include a base plate, at least one retainer plate, and at least one spacer. The at least one retainer plate is configured to reside on the base plate in a free floating manner and can receive at least one fastener to secure the retainer plate to the at least one spacer, thereby providing a plate system that attaches to a spacer. In other instances, a bone plate system can include a base plate having one or more push plates that can engage at least one spacer. 1. An implantable plate system comprising:a base plate having an upper portion, a lower portion and a bridge positioned between the upper and lower portions, each of the upper and lower portions having a pair of fastener holes for receiving bone fasteners to engage with bone, the bridge having a pair of guide holes and an actuating hole disposed between the pair of guide holes;a push plate disposed under the base plate and having a pair of corresponding guide posts received in the guide holes of the bridge;wherein the push plate has a lower surface for contacting and pushing against a spacer implanted between two vertebral bodies;wherein the push plate is adapted to be pushed downwardly through the actuating hole.2. The system of claim 1 , further comprising an actuating threaded screw threadably received in the actuating hole and adapted to push the push plate.3. The system of claim 1 , wherein the push plate has a push post received in the actuating hole.4. The system of claim 1 , wherein the push plate has a push post received in the actuating hole and the actuating hole is threaded such that a driver having a threaded tip pushes the push post to move the push plate away from the base plate.5. The system of claim 1 , wherein the push plate has a threaded push post threadably received in the actuating hole.6. An implantable plate system comprising:a base plate having an upper portion, a lower portion and a bridge ...

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 , ...

Anatomical Wedge Implant

An osteotomy implant includes a first surface extending generally in a first plane and a second surface extending generally in a second plane, oblique to the first plane. The first surface has a perimeter having a first linear edge, a first curve edge connected to the first linear edge, a second linear edge connected to the first curved edge, and a second curved edge connected to the second liner edge. 1. An osteotomy implant comprising:a first surface extending generally in a first plane; anda second surface extending generally in a second plane, oblique to the first plane;wherein the first surface has a perimeter having a first linear edge, a first curve edge connected to the first linear edge, a second linear edge connected to the first curved edge, and a second curved edge connected to the second linear edge.2. The osteotomy implant according to claim 1 , further comprising a core disposed between the first surface and the second surface claim 1 , the core being constructed from a radiolucent material.3. The osteotomy implant according to claim 1 , wherein the at least one of the surfaces has an osteoconductive structure with a thickness of less than about 800 microns.4. The osteotomy implant according to claim 1 , wherein the osteoconductive structure has a thickness of between about 5 nanometers and about 800 microns.5. The osteotomy implant according to claim 1 , wherein the osteoconductive structure is sufficiently thin such that the first surface and the second surface are transparent to imaging.6. The osteotomy implant according to claim 1 , wherein the osteoconductive structure is sufficiently thick such that the first surface and the second surface are visible to imaging.7. The osteotomy implant according to claim 1 , wherein the osteoconductive structure comprises a titanium plasma spray.8. The osteotomy implant according to claim 1 , wherein the implant is sized and shaped such that at least 50% of the perimeter is contained within an osteotomy site.9. ...

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 ...

Anterior Intervertebral Fusion with Fixation System, Device, and Method

A system, device, and method are disclosed for anterior intervertebral fusion with fixation. An intervertebral fusion with fixation device includes a spacer configured to fit into a disc space between plural vertebrae, the spacer including through holes between and through plural sidewalls. A first fixating element is rigidly preloaded in a first portion of the spacer along a first linear trajectory. A second fixating element is rigidly preloaded in a second portion of the spacer along a second linear trajectory. An integrated drill and screwdriver instrument is adapted to extend through a cannula of the first fixating element and second fixating element and penetrate the vertebra. The instrument is further adapted to drive the head of the first fixating element and second fixating element into the vertebra and lock the first fixating element and second fixating element with respect to the spacer to prevent extrusion from the spacer.

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 ...

Systems and Methods for Spinal Fusion

A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites. 1an interbody spinal fusion implant, including at least in part a top surface for contacting a first vertebral endplate, a bottom surface for contacting a second vertebral endplate, at least one fusion aperture extending between the top surface and the bottom surface to allow bony fusion between the first vertebral end plate and the second vertebral endplate, a distal side, a proximal side having at least one receiving aperture for engaging an insertion instrument, and two lateral sides; andan insertion instrument, including a generally elongated tubular member having a distal opening and a proximal opening, a generally elongated shaft member having a distal end and a proximal end and being generally dimensioned to be inserted through the elongated tubular member such that the distal end extends beyond the distal opening and the proximal end extends beyond the proximal opening, and the distal end including an implant engagement feature; anda securing mechanism for releasably securing the engagement feature in one or more receiving apertures of the implant.. A spinal fusion system comprising; This application is a continuation of U.S. patent application Ser. No. 15/272,071, filed Sep. 21, 2016 (now U.S. Pat. No. 9,744,053), which is a continuation of U.S. patent application Ser. No. 14/921,760 filed Oct. 23, 2015, (now U.S. Pat. No. 9,474,627), which is a continuation of U.S. patent application Ser. No. 14/314,823 filed Jun. 25, 2014 (now U.S. Pat. No. 9,180,021), which is a continuation of U.S. patent application Ser. No. 14/171,484 filed Feb. 3, 2014 (now U.S. Pat. No. 8,814,940), which is a continuation of U.S. patent application Ser. No. 14/066,285 filed Oct. 29, 2013 (now U.S. Pat. No. 8,685,105), which is a continuation of U ...

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.

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.

Vertebral joint implants and delivery tools

A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.

SYSTEMS AND METHODS FOR SPINAL FUSION

A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites. 1. (canceled)2. A spinal fusion implant positionable within an interbody space between a first vertebra and a second vertebra , said implant comprising:an upper surface including anti-migration elements to contact said first vertebra when said implant is positioned within the interbody space, a lower surface including anti-migration elements to contact said second vertebra when said implant is positioned within the interbody space, a distal wall, a proximal wall, a first sidewall, and a second sidewall opposite from the first sidewall, wherein the first sidewall intersects the proximal wall and the distal wall, wherein the second sidewall intersects the proximal wall and the distal wall, wherein the implant has a straight longitudinal axis extending between the proximal wall and the distal wall and being axially aligned with a tool engagement aperture in the proximal wall to define a longitudinally straight insertion direction of the implant, wherein said distal wall, proximal wall, first sidewall, and second sidewall comprise a radiolucent material;wherein said implant has a longitudinal length greater than 40 mm extending from a proximal end of said proximal wall to a distal end of said distal wall and extending parallel to said straight longitudinal axis, wherein said implant has a maximum lateral width extending from the first sidewall to the second sidewall along a medial plane that is perpendicular to said straight longitudinal axis, said implant has a maximum height extending from said upper surface to said lower surface and extending perpendicular to said longitudinal length and said maximum lateral width, wherein said wherein the longitudinal length of the implant is at least two and half times greater than the maximum ...

System and methods for spinal fusion

A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites, in particular into the thoracic region of the spine.

Joint Arthrodesis System

A joint arthrodesis system adapted for use in joint surgeries. Among other things, the joint implant has an anterior cutting edge and a rotatable cutter supported by a rotatable shaft. 120-. (canceled)21) A joint arthrodesis system comprising: i) a longitudinal axis measured in a coexisting or parallel direction of a longest dimension of said framework; said framework including a length greater than a width;', 'ii) openings outward from said longitudinal axis;', 'iii) an anterior side comprising a cutting edge integral with said anterior side;', 'iv) a surgeon facing side at an end opposite said anterior side; said anterior side having a lesser cross-sectional area than a cross-sectional area of said surgeon facing side, wherein said cross-sectional areas are determined perpendicular to said longitudinal axis;', 'v) a plate seated within said cross-sectional area of said surgeon facing side and affixed to said framework, wherein said plate is perpendicular to said longitudinal axis and comprises one or more apertures capable of reciprocating with one or more instruments;', 'vi) a shaft aligned with said longitudinal axis and extending between an inner side of said plate and said cutting edge; and', 'vii) arms connected with said shaft; said arms supporting cutters comprising one or more blades, wherein on rotation of said shaft, said one or more blades rotate in a clockwise or counterclockwise direction; and, 'a) a framework comprisingb) a tool capable of rotating said shaft.22) The joint arthrodesis system of claim 22 , wherein said framework comprises four lateral sides.23) The joint arthrodesis system of claim 22 , wherein one or more surfaces of said framework comprises barbs and/or micropores.24) The joint arthrodesis system of claim 23 , wherein said framework comprises recesses adapted to receive said cutters claim 23 , said recesses positioned diagonally from each other relative to two opposed lateral sides said framework.25) The joint arthrodesis system of ...

SYSTEMS AND METHODS FOR SPINAL FUSION

A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites. 1. A spinal fusion system comprising; an interbody spinal fusion implant, including at least in part a top surface for contacting a first vertebral endplate, a bottom surface for contacting a second vertebral endplate, at least one fusion aperture extending between the top surface and the bottom surface to allow bony fusion between the first vertebral end plate and the second vertebral endplate, a distal side, a proximal side having at least one receiving aperture for engaging an insertion instrument, and two lateral sides; and an insertion instrument, including a generally elongated tubular member having a distal opening and a proximal opening, a generally elongated shaft member having a distal end and a proximal end and being generally dimensioned to be inserted through the elongated tubular member such that the distal end extends beyond the distal opening and the proximal end extends beyond the proximal opening, and the distal end including an implant engagement feature; and a securing mechanism for releasably securing the engagement feature in one or more receiving apertures of the implant. This application is a continuation of U.S. patent application Ser. No. 15/690,053, filed Aug. 29, 2017, which is a continuation of U.S. patent application Ser. No. 15/272,071, filed Sep. 21, 2016 (now U.S. Pat. No. 9,744,053), which is a continuation of U.S. patent application Ser. No. 14/921,760 filed Oct. 23, 2015, (now U.S. Pat. No. 9,474,627), which is a continuation of U.S. patent application Ser. No. 14/314,823 filed Jun. 25, 2014 (now U.S. Pat. No. 9,180,021), which is a continuation of U.S. patent application Ser. No. 14/171,484 filed Feb. 3, 2014 (now U.S. Pat. No. 8,814,940), which is a continuation of U.S. patent application Ser ...

Distance interbody device for introducing a biomaterial to a vertebral body and a method of its use

A distance interbody device for introducing a biomaterial to a vertebral body includes a shaped body and a dispense mechanism operable to dispense biomaterial. The shaped body includes a top side, a bottom side, and a lateral wall forming a peripheral wall that extends between the top and bottom sides. The shaped body is provided with at least one through channel and at least one anchoring element. The through channel includes an internal reservoir for the biomaterial. The through channel passes through the anchoring element to at least one outlet opening located in the at least one anchoring element.

Variable lordosis spacer and related methods of use

An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. The first ramp may include a mating feature having a first angle relative to a vertical axis, and the second ramp may include a mating feature having a second angle relative to the vertical axis such that the first angle is different from the second angle. In particular, the first and second ramps may be configured to provide for symmetrical expansion of the first and second endplates.

Variable lordosis spacer and related methods of use

An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. The first ramp may include a mating feature having a first angle relative to a vertical axis, and the second ramp may include a mating feature having a second angle relative to the vertical axis such that the first angle is different from the second angle. In particular, the first and second ramps may be configured to provide for symmetrical expansion of the first and second endplates.

Expandable spinal implant system and method of using same

An expandable spinal implant is provided having first and second endplates hinged along one end or otherwise connected by pins, protrusions and channels, or similar mechanisms and an expansion mechanism(s) disposed therebetween configured to expand the first and second endplates from each other. Also provided are expandable spinal implants that may be expanded in a parallel manner to increase the height of the device while maintaining a lordotic angle. Other spinal implants may provide dual expansion whereby both height and lordotic angle are adjusted. Various implants, systems and methods are disclosed.

INTERBODY FUSION DEVICE

Technologies are generally provided for a spinal fusion device to achieve interbody fusion and maintain intervertebral spacing. The spinal fusion device includes at least two wedge-shaped intervertebral implants (IVIs) configured to be inserted between adjacent vertebrae, such that a thin end of each IVI is positioned toward a midline of the vertebrae, and a thick end of each IVI is positioned substantially flush with outer surfaces of the vertebrae. A lower surface of a superior vertebral body and an upper surface of an adjacent inferior vertebral body are resected to accommodate the IVIs, and a portion of an intervertebral disc (IVD) is also removed to facilitate insertion of the IVIs. The IVIs are inserted in substantially opposite positions to each other between the vertebrae, and an interconnecting member is inserted to connect the IVIs. The interconnecting member passes through residual IVD to stabilize the IVIs in position between the vertebrae. 1. A spinal fusion device to achieve interbody fusion and maintain intervertebral spacing , the spinal fusion device comprising:a substantially wedge-shaped first intervertebral implant and a substantially wedge-shaped second intervertebral implant (IVI) configured to be inserted bilaterally between a first vertebra and a second vertebra, and to displace at least a portion of an intervertebral disk (IVD) between the first and second vertebrae, wherein a thin end of each IVI is configured to be positioned toward a midline of the first and second vertebrae and a thick end of each IVI is configured to be positioned to be substantially flush with outer surfaces of the first and second vertebrae.2. The spinal fusion device of claim 1 , wherein the first IVI and the second IVI are configured to be positioned substantially opposite and parallel to each other such that the thin ends are configured to be positioned next to each other near a midline of the first and second vertebrae.3. The spinal fusion device of claim 1 , ...

ASSEMBLED IMPLANT

This invention is directed to an assembled implant comprising two or more portions of bone that are held together in appropriate juxtaposition with one or more biocompatible pins to form a graft unit. Preferably, the pins are cortical bone pins. Typically, the cortical pins are press-fitted into appropriately sized holes in the bone portions to achieve an interference fit. The bone portions are allograft or xenograft. 1. A method for manufacture of autograft , allograft and xenograft implants which comprises assembling such implants from smaller pieces of graft materials to form a larger graft implant product.261-. (canceled) This application is a continuation of U.S. application Ser. No. 12/690,074, filed Jan. 19, 2010, now issued as U.S. Pat. No. 9,763,787, which is a continuation of U.S. application Ser. No. 09/782,594, filed Feb. 12, 2001, now abandoned.This invention relates to implants and methods for their preparation wherein components of the implant are assembled from constituent pieces to produce a complete implant.In the field of medicine, there has been an increasing need to develop implant materials for correction of biological defects. Particularly in the field of orthopedic medicine, there has been the need to replace or correct bone, ligament and tendon defects or injuries. As a result, there have emerged a number of synthetic implant materials, including but not limited to metallic implant materials and devices, devices composed in whole or in part from polymeric substances, as well as allograft, autograft, and xenograft implants. It is generally recognized that for implant materials to be acceptable, they must be pathogen free, and must be biologically acceptable. Generally, it is preferable if the implant materials may be remodeled over time such that autogenous bone replaces the implant materials. This goal is best achieved by utilizing autograft bone from a first site for implantation into a second site. However, use of autograft materials is ...

Expandable Implant

An expandable implant (100, 150, 160, 200, 250, 300, 400) has a base (10) and a displaceable element (12) hingedly interconnected at one end. At the other end, the base and the displaceable element are formed with complementary jaws (24, 26) which provide continuous overlap of facing surfaces over a range of angular positions of the displaceable element relative to said base. In some cases, the first end portion (16) of the displaceable element (12) is formed with projecting teeth (28) forming a partial gear centered on an axis (18) of the hinged interconnection with the base (12) for engaging a worm gear. In certain embodiments, the base is formed with a socket (30) for removably receiving a worm gear tool (32) for engaging the teeth (28) and displacing said displaceable element. After expansion, the worm-gear tool (32) can be removed.

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 unexpanding the device.

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 inter-body device, system and method

Expandable spinal implants, systems and methods are disclosed. An expandable spinal implant may include a first endplate, a second endplate, and a moving mechanism that is operably coupled to the first and second endplates. The moving mechanism may include a wedge, a first sliding frame and a second sliding frame disposed on opposite sides of the wedge, a screw guide housing a rotatable first set screw and a rotatable second set screw opposite the first set screw. The first set screw may be operably coupled to the second sliding frame and the second set screw may be operably coupled to the wedge. The moving mechanism may operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws and operably adjust an angle of inclination between the first and second endplates upon translating the first set screw or second set screw.

EXPANDABLE INTER-BODY DEVICE, SYSTEM, AND METHOD

The present disclosure provides for spinal implants deployable between a contracted position and an expanded position. The spinal implant may include an anterior endplate, a superior endplate, and an inferior endplate operably coupled to a moving mechanism. The first endplate and a second endplate each include at least one bone screw relief. The moving mechanism may include first and second trolleys configured to act against corresponding ramps. The moving mechanism may further include a first set screw and a second set screw opposite the first set screw configured to operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws along a rotation axis, and may also operably adjust an angle of inclination between the first and second endplates upon rotating either one of the first set screw and second set screw along the rotation axis.

ANGULARLY ADJUSTABLE INTERVERTEBRAL CAGES WITH INTEGRATED RATCHET ASSEMBLY

The embodiments provide various interbody fusion spacers, or cages, for insertion between adjacent vertebrae. The cages may have integrated ratchet assemblies that allow the cage to change size and angle as needed, with little effort. The cages may have a first, insertion configuration characterized by a reduced size to facilitate insertion through a narrow access passage and into the intervertebral space. The cages may be inserted in a first, reduced size and then expanded to a second, larger size once implanted. In their second configuration, the cages are able to maintain the proper disc height and stabilize the spine by restoring sagittal balance and alignment. Additionally, the intervertebral cages are configured to be able to adjust the angle of lordosis, and can accommodate larger lordotic angles in their second, expanded configuration. Further, these cages may promote fusion to further enhance spine stability by immobilizing the adjacent vertebral bodies. 1a housing comprising an upper plate configured for placement against an endplate of a first vertebral body, and a lower plate configured for placement against an endplate of a second, adjacent vertebral body; andan integrated ratchet assembly within the housing and being configured to effect angular adjustment of the spinal implant.. An expandable spinal implant, comprising: This is a continuation of U.S. patent application Ser. No. 16/293,374 filed Mar. 5, 2019, which claims the benefit of U.S. Patent Application Ser. No. 62/639,282 filed Mar. 6, 2018, the disclosure of each of which is hereby incorporated by reference as if set forth in its entirety herein.The present disclosure relates to implantable orthopedic devices, and more particularly to implantable devices for stabilizing the spine. Even more particularly, the present disclosure relates to angularly adjustable intervertebral cages comprising integrated ratchet assemblies that allow expansion of the cages from a first, insertion configuration ...

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. 1. An expandable implant comprising:a first endplate, wherein the first endplate comprises at least one bore hole for receiving a bone screw therein, wherein the first endplate is formed of a first portion formed of a first material and a second portion formed of a second material different from the first material, wherein the first portion and the second portion are secured together via one or more screws;a second endplate, wherein the second endplate comprises at least one bore hole for receiving a bone screw therein;an actuator positioned between the first endplate and the second endplate; andan actuator screw for actuating the actuator, wherein rotation of the actuator screw causes movement of the actuator, thereby causing expansion or contraction of the implant.2. The implant of claim 1 , further comprising an actuator frame for receiving the actuator screw therein.3. The implant of claim 2 , further comprising a compression clip positioned between the actuator screw and the actuator frame.4. The implant of claim 1 , further comprising a blocking member for preventing inadvertent backing out of the actuator screw.5. The implant of claim 4 ...

Helicoil interference fixation system for attaching a graft ligament to a bone

A helicoil interference fixation system comprising: a helicoil comprising a helical body comprising a plurality of turns separated by spaces therebetween, the helical body terminating in a proximal end and a distal end, and at least one internal strut extending between at least two turns of the helical body; and an inserter for turning the helicoil, the inserter comprising at least one groove for receiving the at least one strut; the helicoil being mounted on the inserter such that the at least one strut of the helicoil is mounted in the at least one groove of the inserter, such that rotation of the inserter causes rotation of the helicoil.

Helicoil interference fixation system for attaching a graft ligament to a bone

A helicoil interference fixation system comprising: a helicoil comprising a helical body comprising a plurality of turns separated by spaces therebetween, the helical body terminating in a proximal end and a distal end, and at least one internal strut extending between at least two turns of the helical body; and an inserter for turning the helicoil, the inserter comprising at least one groove for receiving the at least one strut; the helicoil being mounted on the inserter such that the at least one strut of the helicoil is mounted in the at least one groove of the inserter, such that rotation of the inserter causes rotation of the helicoil.

HELICOIL INTERFERENCE FIXATION SYSTEM FOR ATTACHING A GRAFT LIGAMENT TO A BONE

A helicoil interference fixation system comprising: 132-. (canceled)33. A device comprising:an inserter comprising a cannulated shaft extending from a proximal end to a distal end along a longitudinal axis; and [ a plurality of coils defining at least one opening between adjacent coils and', 'at least one drive surface extending longitudinally along at least a portion of the first anchor component and interconnecting at least two of the coils; and, 'a first anchor component coupled to the shaft, the first anchor component including, 'a second anchor component, distinct from and coupled to the shaft distally of, the first anchor component., 'an anchor comprising34. The device of wherein the at least one drive surface extends the entire length of the first anchor component.35. The device of wherein the shaft receives an entire length of the at least one drive surface.36. The device of wherein the first anchor component is slidably disposed on the shaft.37. The device of wherein the at least one drive surface occupies less than 50% of the at least one opening between the adjacent coils.38. The device of wherein the at least one drive surface occupies less than 20% of the at least one opening between the adjacent coils.39. The device of wherein the first anchor component comprises absorbable material.40. The device of wherein the first anchor component comprises non-absorbable material.41. A device comprising:an inserter comprising a cannulated shaft extending from a proximal end to a distal end along a longitudinal axis; and a helicoil portion having at least one helical thread defining at least one opening between adjacent turns of the at least one helical thread, wherein the helicoil portion does not include any root between the turns of the thread where the at least one helical thread defines the at least one opening; and', 'at least one drive surface extending longitudinally along at least a portion of the helicoil portion and interconnecting at least two of the ...

METHOD AND APPARATUS FOR BONE FIXATION

An orthopedic implant can be used for fixation of a joint or fracture and can include a tapered member and at least one fixation member. The tapered member can be configured for placement in association with one or more bone segments. The tapered member can have a longitudinally extending body that defines an upper surface portion, an opposed lower surface portion and first and second sides, where at least the first and second sides can be formed of porous metal and can have a porous metal outer surface. The at least one fixation member can be integrally formed with the tapered member and can extend laterally outwardly from the tapered member body. The at least one fixation member can be configured to secure the implant to the one or more bone segments to provide fixation of the one or more bone segments relative to the tapered member. 1. An orthopedic implant , comprising:a tapered member adapted for placement in association with one or more bone segments, the tapered member having a longitudinally extending body defining an upper surface portion, an opposed lower surface portion and opposed first and second sides, at least the opposed first and second sides being formed of porous metal and having a porous metal outer surface; andat least one fixation member integrally formed with the tapered member and extending laterally outwardly from the tapered member body, the at least one fixation member adapted to secure the implant to the one or more bone segments to provide fixation of the one or more bone segments relative to the tapered member.2. The implant of claim 1 , wherein the opposed first and second sides of the tapered member body taper outwardly from the lower surface portion to the upper surface portion such that the tapered member includes a wedge shaped structure with the tapered member body at the lower surface portion having a smaller width than the tapered member body at the upper surface portion.3. The implant of claim 1 , wherein the tapered member ...

Spinal implant configured for midline insertion

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

INTERVERTEBRAL SPACER WITH CHAMFERED EDGES

Intervertebral implants, assemblies, and methods thereof. An intervertebral implant includes opposing chamfered edges to reduce a diagonal distance between the edges. The reduced diagonal distance minimizes distraction of an intervertebral disc space during insertion of the implant. A tool for insertion and rotation of the implant is also provided. 1. A system comprising: a central longitudinal axis extending through the body;', 'an anterior portion and a posterior portion, the posterior portion having a posterior wall and an internally threaded opening;', 'a superior surface extending between the anterior portion and the posterior portion;', 'an inferior surface extending between the anterior portion and the posterior portion;', 'a first sidewall extending between the superior surface and the inferior surface on a first side of the longitudinal axis; and', 'a second sidewall extending between the superior surface and the inferior surface on a second side of the longitudinal axis, the first sidewall and the second sidewall comprising a first indentation and a second indentation, respectively, proximate the posterior portion,', 'wherein the posterior wall is generally perpendicular to the first sidewall and the second sidewall; and, 'an implant having an elongate body having a gripper extending distally from the handle, the gripper having a first fork and a second fork extending generally parallel to the first fork,', 'wherein a gap is provided between the first fork and the second fork, the gap being sized to allow the first fork to be inserted into the first indentation and the second fork into the second indention., 'an insertion tool having2. The system of claim 1 , wherein the superior surface and the inferior surface comprise a plurality of teeth.3. The system of claim 2 , wherein the plurality of teeth comprises discrete pyramidal teeth.4. The system of claim 3 , wherein one of the pyramidal teeth has a first surface formed from a tip to a base of the pyramid ...

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 body, a first endplate, and a second endplate, a middle ramp piece, a stem, and two ramp pins. The middle ramped piece is operable to move to generate lordotic expansion of the first and second endplates followed by parallel expansion. The fusion device is operable to be deployed down an endoscopic tube. 1. An implantable system , comprising: a first endplate including a first ramped surface having a first angle and a second ramped surface having a second angle;', 'a second endplate operatively connected to the first endplate;', 'a body positioned between the first endplate and the second endplate, the body including a third ramped surface having a third angle;', 'a middle ramped piece including a fourth ramped surface having a fourth angle, wherein the first endplate and the second endplate are operable to move lordotically when there is a difference between the first angle and the third angle and wherein the first endplate and the second endplate are operable to move in parallel when there is no difference between the first angle and the third angle., 'an expandable device, comprising2. The implantable system of claim 1 , wherein the first endplate and the second endplate are operable to move lordotically when there is a difference between the second angle and the fourth angle.3. The implantable system of claim 1 , wherein the first endplate and the second endplate are operable to move in parallel when there is no difference between the second angle and the fourth angle.4. The implantable system of claim 1 , wherein a degree of lordosis of the first endplate and the second endplate does not increase when there is no difference between the first angle and the third angle.5. The implantable ...

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 body, a first endplate, and a second endplate, a middle ramp piece, a stem, and two ramp pins. The middle ramped piece is operable to move to generate lordotic expansion of the first and second endplates followed by parallel expansion. The fusion device is operable to be deployed down an endoscopic tube. 1. An implantable system , comprising: a first endplate;', 'a second endplate;', 'a body positioned between the first endplate and the second endplate;', 'a ramp piece positioned between the first and second endplate and configured and dimensioned to engage with the first endplate to increase a distance between the first endplate and the second endplate., 'an expandable device, comprising2. The implantable system of claim 1 , wherein the ramp piece comprises an opening that engages with a stem.3. The implantable system of claim 1 , wherein a portion of the stem comprises teeth.4. The implantable system of claim 3 , wherein the teeth engage with a portion of an opening in the body.5. The implantable system of claim 2 , wherein the stem is operatively connectable to the body.6. The implantable system of claim 1 , wherein lordotic expansion of the expandable device is generated when:the first endplate and the body are engaged with one another; andthe first endplate and the ramp piece are engaged with one another.7. The implantable system of claim 1 , wherein the ramp piece is configured and dimensioned to move translationally within the body.8. The implantable system of claim 1 , further comprising a stem including teeth positioned along a portion of its surface claim 1 , wherein the stem is operatively connected to the ramp piece claim 1 , and wherein the stem is operable to move translationally ...

Expandable intervertebral fusion implant

An expandable intervertebral fusion implant, including an inferior component, including a first horizontal member, a first vertical member connected to the first horizontal member, and a first outward facing surface, a superior component hingedly connected to the inferior component, the superior component including a second horizontal member, a second vertical member connected to the second horizontal member, and a second outward facing surface directed away from the first outward facing surface, a first shell hingedly connected to the inferior component, and a first wedging component slidingly arranged between the first shell and the first outward facing surface.

Oblique lateral insertion-type intervertebral cage

A cage to be inserted between vertebrae reduces a risk of damage to organs and nerves in the process of insertion surgery and facilitates the process of insertion surgery. The cage can be inserted in one insertion direction between a plurality of vertebrae, wherein the insertion direction forms a predetermined insertion angle with respect to the anterior aspect of the spine, and an upper surface and a lower surface of the cage are provided to correspond to a lower surface and an upper surface of the vertebrae. Also, the cage is stably fixed, and side effects after surgery is reduced. Also, the surgery time is reduced, and a burden on the patient is reduced. In addition, advantages of anterior insertion and direct lateral insertion are combined, and thus post-surgery outcomes in patients may be improved.

Stand Alone Intervertebral Fusion Device

An angled fixation device, such as an angled screw. This angled fixation device may be used by the surgeon to secure a spacer to a spinal disc space. The proximal end portion of the angled fixation device is driven perpendicular to the anterior wall of the spacer, and so is parallel to the vertebral endplates and in-line with the inserter. The distal end portion of the angled fixation device is oriented at about a 45 degree angle (plus or minus 30 degrees) to the vertebral endplate it enters.

SURGICAL IMPLANT WITH GUIDING RAIL

A prosthetic intervertebral spacer is disclosed. The spacer preferably includes a body and an interface extending away from the body for use during implantation of the spacer. Methods of implanting the spacer and tools used during such procedure are also disclosed. 1. (canceled)2. A prosthetic intervertebral spacer comprising a body having a front end , a rear end , anterior and posterior sides each extending between the front and rear ends , and top and bottom surfaces each connecting the anterior and posterior sides and extending between the front and rear ends , at least one of the top and bottom surfaces including a plurality of teeth , each of the plurality of teeth having a flat uppermost surface and a base , the plurality of teeth touching one another at their respective bases.3. The spacer of claim 2 , wherein the anterior side of the body defines fenestrations for allowing bone growth.4. The spacer of claim 2 , wherein the plurality of teeth contact one another to completely cover a continuous portion of the at least one of the top and bottom surfaces.5. The spacer of claim 2 , wherein the other of the top and bottom surfaces includes a plurality of teeth each having a flat uppermost surface and a base and touching one another at their respective bases.6. The spacer of claim 2 , further comprising a plurality of radiographic markers disposed within the body.7. The spacer of claim 6 , wherein the plurality of radiographic markers are each comprised of tantalum.8. The spacer of claim 2 , further comprising an interface extending away from the body claim 2 , the interface extending along an arcuate path and being connected to the body along an arcuate periphery thereof from a rear-facing surface to the a posterior-facing surface of the body claim 2 , wherein the interface is a rail including a neck portion connected to the body and a lip portion connected to the neck portion claim 2 , the lip portion being wider than the neck portion in a direction extending ...

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.

EXPANDABLE SPINAL IMPLANT

An expandable spinal implant configured for positioning within the intervertebral space between adjacent vertebral bodies is disclosed. The spinal implant includes a first body, a second body, a ratchet, and a locking mechanism. The first and second bodies are pivotably affixed to each other on respective first ends thereof and are capable of movement relative to each other in a medial-lateral direction with respect to the adjacent vertebral bodies. The ratchet is pivotably supported within a slot defined in the first body and is capable of engaging the second body thereby permitting movement of the first and second body relative to each other in a first direction, but not in a second direction that is different than the first direction. A method of performing spinal surgery is also disclosed. 1. A spinal implant , comprising:first and second bodies pivotably coupled to each other and capable of movement relative to each other, the first and second bodies dimensioned to be installed between two vertebral bodies, wherein outer surfaces of each of the first and second bodies are adapted to engage the vertebral bodies; anda ratchet mechanism pivotably supported within a slot defined in a recess of the first body, the ratchet mechanism capable of engaging a portion of the second body thereby permitting movement of the first and second bodies relative to each other in a first direction, and inhibiting movement in a second direction different than the first direction.2. The spinal implant of claim 1 , wherein movement of the first and second bodies is in a medial-lateral direction relative to the two vertebral bodies3. The spinal implant of claim 1 , wherein outer surfaces of the first body and the second body include ridges adapted to engage the first and second vertebral bodies.4. The spinal implant of claim 1 , wherein at least one biasing element is disposed within a counterbore defined in the recess of the first body claim 1 , the at least one biasing element adapted ...

Expandable intervertebral implant, inserter instrument, and related methods

An expandable intervertebral implant includes a first endplate and a endplate, a first wedge member and a second wedge member spaced from the first wedge member that couple the first and second plates together. The first and second wedge members configured to move between a first collapsed position and a second expansion position. The implant includes an actuation member coupled to the first wedge member and the second wedge member. The first and second wedge members can be coupled to the upper and lower endplates at guide members that are asymmetric. An instrument can be coupled to the implant so as to provide a force to the actuation member that causes the wedge members to move between the collapsed position and the expansion position. The instrument can include a drive shaft and a toggle member that is configured to move the drive shaft between a first position whereby the drive shaft is configured to drive an attachment pin into the implant, and a second position whereby the drive shaft is aligned to drive the actuation member to rotate.

EXPANDABLE INTERSPINOUS PROCESS FIXATION DEVICE

An expandable interspinous process fixation system capable of restoring spinal stability and facilitating fusion. In one embodiment, the expandable interspinous process fixation system 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. Each endplate supporting fixed and/or adjustable spinous process engaging plates. 1. A method , comprising: a first endplate for an intervertebral implant, wherein the first endplate comprises a first plate portion having a first upper surface and a first lower surface, wherein the first endplate further comprises first front ramped portions extending away from the first lower surface and first rear ramped portions extending away from first lower surface, the first endplate having a first lateral adjustment arm extending from a first edge thereof;', 'a second endplate for an intervertebral implant, wherein the second endplate comprises a second plate portion having a second upper surface and a second lower surface, wherein the second endplate further comprises second front ramped portions extending away from the second lower surface and second rear ramped portions extending away from second lower surface, the second endplate having a second lateral adjustment arm extending from a first edge thereof;', 'a first fixed plate extending along a second edge of the first endplate opposite the first edge thereof, the first fixed plate extending substantially perpendicular to the first endplate and having an inner surface defining a first spinous process engaging surface;', 'a second fixed plate extending along a second edge of the second endplate opposite the first edge thereof, the second fixed plate extending substantially perpendicular to the second endplate and having an inner surface defining a second spinous process engaging surface;', 'a first sliding plate adjustably mounted ...

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. 1. An apparatus comprising:a first endplate for an intervertebral implant, wherein the first endplate comprises a first plate portion having a first upper surface and a first lower surface, wherein the first endplate further comprises first front ramped portions extending away from the first lower surface and first rear ramped portions extending away from first lower surface;a second endplate for an intervertebral implant, wherein the second endplate comprises a second plate portion having a second upper surface and a second lower surface, wherein the second endplate further comprises second front ramped portions extending away from the second lower surface and second rear ramped portions extending away from second lower surface;a body positioned between the first endplate and the second endplate, wherein the body comprises rear endplate engaging ramps; anda driving ramp positioned at a front end of the apparatus, wherein the driving ramp comprises front endplate engaging ramps;wherein, when the apparatus is in an unexpanded configuration, the rear endplate engaging ramps and the front endplate engaging ramps have ramp angles with respect to a longitudinal axis of the apparatus that differ from ramp angles of the first rear ramped portions and first front ramped portions of the first endplate with respect to the longitudinal axis; andwherein the apparatus is configured such that movement of the driving ramp in one direction ...

INTERVERTEBRAL IMPLANT DEVICE WITH INDEPENDENT DISTAL-PROXIMAL EXPANSION

An expandable interbody fusion implant device has a frame, two ramp assemblies and two overlying base plates driven by two independent drive shafts. The two ramp assemblies include a distal ramp assembly and a proximal ramp assembly. Each ramp assembly has a translating ramp, a first pivoting hinged ramp and a second pivoting hinged ramp. The two overlying base plates include a first base plate overlying a second base plate. Each base plate is hinged to the distal ramp assembly and the proximal ramp assembly at an end of one of said pivoting hinged ramps of each ramp assembly. The two independently driven drive shafts include a first drive shaft for translating the distal ramp assembly and a second drive shaft for translating the proximal ramp assembly to independently expand the implant proximally or distally or both. 2. The expandable interbody fusion implant device of wherein each translating ramp has an exterior lift surface contoured to guide and support the pivoting hinged ramps during expansion or contraction of the base plates.3. The expandable interbody fusion implant device of wherein during distal expansion of the base plates the distal ramp assembly moves directionally toward the distal end of the frame on rotation of the first drive shaft.4. The expandable interbody fusion implant device of wherein during proximal expansion of the base plates the proximal ramp assembly moves directionally toward the proximal end of the frame on rotation of the second drive shaft.5. The expandable interbody fusion implant device of wherein each translating ramp has a stop wall configured to stop the pivoting hinged ramps at a full expansion height on both the distal and proximal ramp assemblies.6. The expandable interbody fusion implant device of wherein each pivoting hinged ramp has a contoured support surface configured to slide on the exterior lift surface of the translating ramp.7. The expandable interbody fusion implant device of wherein each pivoting hinged ramp ...

INTERVERTEBRAL IMPLANT DEVICE WITH INDEPENDENT DISTAL-PROXIMAL EXPANSION

An expandable interbody fusion implant device has a frame, two ramp assemblies and two overlying base plates driven by two independent drive shafts. The two ramp assemblies include a distal ramp assembly and a proximal ramp assembly. Each ramp assembly has a translating ramp, a first pivoting hinged ramp and a second pivoting hinged ramp. The two overlying base plates include a first base plate overlying a second base plate. Each base plate is hinged to the distal ramp assembly and the proximal ramp assembly at an end of one of said pivoting hinged ramps of each ramp assembly. The two independently driven drive shafts include a first drive shaft for translating the distal ramp assembly and a second drive shaft for translating the proximal ramp assembly to independently expand the implant proximally or distally or both. 2. The expandable interbody fusion implant device of wherein each translating ramp has an exterior lift surface contoured to guide and support the pivoting hinged ramps during expansion or contraction of the at least one base plate.3. The expandable interbody fusion implant device of wherein during distal expansion of the at least one base plate the distal ramp assembly moves directionally toward the distal end of the frame on rotation of the first drive shaft.4. The expandable interbody fusion implant device of wherein during proximal expansion of the at least one base plate the proximal ramp assembly moves directionally toward the proximal end of the frame on rotation of the second drive shaft.5. The expandable interbody fusion implant device of wherein each translating ramp has a stop wall configured to stop the pivoting hinged ramps at a full expansion height on both the distal and proximal ramp assemblies.6. The expandable interbody fusion implant device of wherein each pivoting hinged ramp has a contoured support surface configured to slide on the exterior lift surface of the translating ramp.7. The expandable interbody fusion implant device of ...

Bone density scan result-matched orthopedic implants and methods of use

A method of treating a patient in need of an orthopedic implant is described. The method includes obtaining the T-score or bone density of the patient's native bone at a site of implantation, said T-score or bone density being determined by a DEXA scan or other means of determining a T-score or bone density. The method further includes selecting an orthopedic implant that has about the same density as the native bone at the site of implantation, and implanting the orthopedic implant at the site of implantation.

SURGICAL PLATE SYSTEMS

Improved bone plate systems are described herein. In some instances, a bone plate system can include a base plate, at least one retainer plate, and at least one spacer. The at least one retainer plate is configured to reside on the base plate in a free floating manner and can receive at least one fastener to secure the retainer plate to the at least one spacer, thereby providing a plate system that attaches to a spacer. In other instances, a bone plate system can include a base plate having one or more push plates that can engage at least one spacer. 1. An implantable system comprising: a base plate having at least four through holes for receiving bone fasteners to engage with bone and a slot positioned between an upper and lower portion of the base plate;', 'a translatable carriage positioned within the slot of the base plate, the translatable carriage configured to receive a fastener to engage with the spacer., 'a plate system configured to engage a spacer, wherein the plate system comprises2. The implantable system of claim 1 , wherein two of the at least four through holes are positioned on the upper portion of the base plate.3. The implantable system of claim 1 , wherein two of the at least four through holes are positioned on the lower portion of the base plate.4. The implantable system of claim 1 , wherein the slot is an elongated opening positioned between the two through holes of the upper portion and the two through holes of the lower portion of the base plate.5. The implantable system of claim 1 , wherein the slot comprises a track for receiving the translatable carriage.6. The implantable system of claim 5 , wherein the track comprises a recess.7. The implantable system of claim 1 , wherein the translatable carriage is configured to translate within the slot and to receive the fastener having a shaft portion that engages with the spacer.8. The implantable system of claim 7 , wherein the fastener is a polyaxial screw.9. The implantable system of claim 7 , ...

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 intervertebral implant comprising:a first endplate and a second endplate;a first ramped insert engaged with the first endplate, the first ramped insert having a first ramped portion and a second ramped portion connected to the first ramped portion by a first bridge portion;a second ramped insert engaged with the first endplate, the second ramped insert having a first ramped portion and a second ramped portion connected to the first ramped portion by a second bridge portion; anda translation member positioned between the first and second endplate, the translation member comprising a first expansion portion and a second expansion portion connected together via a bridge section, the first expansion portion comprising first and second angled surfaces, the first angled surface engaging the first ramped insert, the second angled surface engaging the second ramped insert;wherein movement of the translation member causes the first and second endplates to move towards or away from one another.2. The intervertebral implant of claim 1 , wherein the first and second ramped inserts each include grooved portions configured to receive the respective first and second angled surfaces of the translation member.3. The intervertebral implant of claim 2 , wherein the respective first and second angled surfaces of the translation member slidingly engaged the ...

SYSTEM AND METHODS FOR SPINAL FUSION

A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites, in particular into the thoracic region of the spine. 1. A spinal fusion implant configured to be positioned in an interbody space between a first vertebra and a second vertebra , comprising:a proximal wall, a distal wall, an anterior wall and a posterior wall, the anterior wall having a first length and being configured to face an anatomically anterior aspect of the interbody space while the implant is positioned in the interbody space, the posterior wall having a second length and being configured to face an anatomically posterior aspect of the interbody space while the implant is positioned in the interbody space, the anterior wall meeting the distal wall at a first corner having a first corner radius of curvature and meeting the proximal wall at a second corner having a second corner radius of curvature, the posterior wall meeting the distal wall at a third corner having a third corner radius of curvature and meeting the proximal wall at a fourth corner having a fourth corner radius of curvature, the first corner radius of curvature and the second corner radius of curvature being greater than the third corner radius of curvature and the fourth corner radius of curvature such that the second length is greater than the first length.2. The spinal fusion implant of claim 1 , further including an upper surface comprising upper surfaces of the proximal wall claim 1 , the distal wall claim 1 , the anterior wall and the posterior wall claim 1 , and a lower surface comprising lower surfaces of the proximal wall claim 1 , distal wall claim 1 , anterior wall and posterior wall.3. The spinal fusion implant of claim 2 , further including a fusion aperture extending through an entire height of the implant extending from the upper surface to ...

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. 1. A locking mechanism for use in an expandable implant comprising:a screw comprising a head that includes at least one recess configured and dimensioned on an outer diameter;a spring component including an outer portion and an inner portion, the inner portion operatively connected to the outer portion based on an arm that maintains a spacing between the outer portion and the inner portion, the inner portion further comprising a protuberance that is selectively engageable with the at least one recess on the outer diameter of the head; anda housing comprising an opening for receiving the screw, wherein the outer portion of the spring component is operatively connected to a part of the opening.2. The locking mechanism of claim 1 , wherein the head further comprises an opening and the inner portion comprises an opening claim 1 , wherein a center of the opening in the inner portion is offset from a center of the opening in the head.3. The locking mechanism of claim 2 , wherein the protuberance is engaged with the at least one recess when the center of the opening of the inner portion is offset from the center of the opening in the head.4. The locking mechanism of claim 2 , wherein the protuberance is disengaged from the at least one recess when the center of the opening of the inner portion is aligned with the center of the opening in the head.5. The locking mechanism of claim 1 , wherein the arm is configured and dimensioned to ...

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. 1. A locking device , of an expandable implant comprising:a fastening device including a head, wherein the head includes an opening and a portion of the opening extends to an outer diameter of the head;a first ring including a protuberance extending from a first side, wherein the protuberance comprises a first portion and a second portion, and wherein the first ring is operatively connected to the head by positioning the first portion within the portion of the opening of the head that extends to the outer diameter of the head; anda second ring comprising a plurality of recesses, wherein the second portion of the protuberance is selectively engageable with at least one of the plurality of recesses.2. The locking device of claim 1 , further comprising a housing including a cavity for receiving the fastening device.3. The locking device of claim 2 , wherein the first portion of the first ring does not extend substantially beyond the head when positioned within the portion of the opening of the head that extends to the outer diameter of the head.4. The locking device of claim 2 , wherein the second ring is rotationally fixed to the housing.5. The locking device of claim 1 , wherein the first ring comprises a c-ring.6. The locking device of claim 1 , wherein the first ring is rotationally locked to the head of the fastening device.7. The locking device of claim 5 , wherein the c-ring is spring loaded.8. The locking device of ...

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 an exemplary embodiment, the present invention provides an intervertebral implant. The intervertebral implant may be configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width. 1. An intervertebral implant comprising:an upper endplate comprising a first upper endplate portion and a second upper endplate portion;a lower endplate comprising a first lower endplate portion and a second lower endplate portion;a first front sloped actuator configured to movingly engage a front end of the first upper endplate portion and a front end of the first lower endplate portion, the first front sloped actuator comprising a front height actuator;a second front sloped actuator configured to movingly engage a front end of the second upper endplate portion and a front end of the second lower endplate portion, the second front sloped actuator comprising a front height actuator;a first rear sloped actuator configured to movingly engage a rear end of the first upper endplate portion and a rear end of the first lower endplate portion, the first rear sloped actuator comprising a rear height actuator; anda second rear sloped actuator configured to movingly engage a rear end of the second upper endplate portion and a rear end of the second lower endplate portion, the second rear sloped actuator comprising a rear height actuator;wherein actuation of the first front and first rear sloped actuators transition a first portion of the intervertebral implant from a first height to a second height and actuation of the second front and second rear sloped actuators transition a second portion of the intervertebral implant from a first height to a second height, ...

Expandable Implant

An expandable implant () has a base () and a displaceable element () hingedly interconnected at one end. At the other end, the base and the displaceable element are formed with complementary jaws () which provide continuous overlap of facing surfaces over a range of angular positions of the displaceable element relative to said base. In some cases, the first end portion () of the displaceable element () is formed with projecting teeth () forming a partial gear centered on an axis () of the hinged interconnection with the base () for engaging a worm gear. In certain embodiments, the base is formed with a socket () for removably receiving a worm gear tool () for engaging the teeth () and displacing said displaceable element. After expansion, the worm-gear tool () can be removed. 2. The expandable implant of claim 1 , wherein said complementary jaws provide complementary facing arcuate surfaces.3. The expandable implant of claim 1 , wherein said complementary jaws provide complementary facing surfaces corresponding to solids of revolution about an axis of said hinged interconnection.4. The expandable implant of claim 1 , wherein a first jaw of said complementary jaws comprises at least one projecting portion that is interposed between inward facing surfaces of a second of said complementary jaws.5. The expandable implant of claim 2 , wherein said inward facing surfaces are integrated with an end wall such that said inward facing surfaces and said end wall encompass said at least one projecting portion on three sides.6. The expandable implant of claim 1 , wherein said complementary jaws are configured to provide said continuous overlap over a range of angular positions of said displaceable element relative to said base spanning at least 10 degrees.7. The expandable implant of claim 1 , wherein said complementary jaws are configured to provide said continuous overlap over a range of angular positions of said displaceable element relative to said base spanning at least 20 ...

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. 1. An expandable implant comprising:a first endplate;a second endplate;a body positioned between the first and second endplate;a locking mechanism comprising:a drive screw including a head;a housing configured and dimensioned to receive at least a portion of the drive screw;a first ring including a first protuberance extending from a first side and a second protuberance extending from a second side, the first ring operatively connectable to the head based on the first protuberance; anda second ring selectively engageable with the second protuberance and the housing.2. The expandable implant of claim 1 , wherein the first ring includes a spring tail.3. The expandable implant of claim 1 , wherein the first ring includes a body having a first opening claim 1 , wherein a center of the first opening is offset from a center of a second opening in the head.4. The expandable implant of claim 1 , wherein the first ring is rotationally locked to the head.5. The expandable implant of claim 1 , wherein the second ring is rotationally locked to the housing.6. The expandable implant of claim 1 , wherein one side of the second ring comprises a castle feature that engages with the second protuberance.7. The expandable implant of claim 2 , wherein the first ring is operable to translate within the housing based on the spring tail.8. The expandable implant of claim 2 , wherein the second protuberance is disengaged from the second ring when ...

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 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.

Orthopedic implants

A method for operating on a subject includes providing an orthopedic implant having a front end, a rear end, a top, a bottom, a right side, and a left side, a distance between the top and bottom being (a) greater at a first location at one of the sides than at a second location opposite the first location at the other one of the sides, and (b) greater at a third location at the front end than at a fourth location opposite the third location at the rear end. The implant has one or more passageways passing therethrough, creating an osteotomy at an anatomical site. When inserting the implant along an axis of insertion into the anatomical site, an angular orientation of a first portion of bone is changed with respect to a second portion of bone by rotating the first portion of bone about (a) the axis of insertion, and (b) an axis perpendicular to the axis of insertion.

Interfixated vertebral body replacement and insertion methods

Implants and instruments for providing an ideal trajectory for the insertion of instruments and screws during implantation of an interbody implant in a spinal surgery are disclosed.

Bodiless bone fusion device, apparatus and method

A bodiless bone fusion method, apparatus and device for insertion between bones that are to be fused together and/or in place of one or more of the bones, such as, for example, the vertebrae of a spinal column. The bodiless bone fusion device comprises one or more extendable plates, one or more extending blocks in communication with the extendable plates, one or more positioning elements for adjusting the extendable plates by manipulating the extending blocks, and one or more support panels for holding the positioning elements and guiding the extendable plates. The plates are able to be advantageously positioned in the confined space between the vertebrae to help brace the device until the bone has fused.

Cage system

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

Variable lordosis spacer and related methods of use

An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. The first ramp may include a mating feature having a first angle relative to a vertical axis, and the second ramp may include a mating feature having a second angle relative to the vertical axis such that the first angle is different from the second angle. In particular, the first and second ramps may be configured to provide for symmetrical expansion of the first and second endplates.

EXPANDABLE TRIAL WITH TELESCOPIC STABILIZERS

Systems and methods for distracting an intervertebral disc space are provided. The systems use an expandable trial with telescopic stabilizers. The systems and methods of distracting an intervertebral space are provided in a manner that addresses the problem of subsidence. The method includes inserting the trial into the intervertebral space in a collapsed state and, once inserted, the trial is then used for distracting the intervertebral space using an expansion that includes a first stage and a second stage. The first stage includes expanding the trial laterally toward the peripheral zones of the top vertebral plate and the bottom vertebral plate, and the second stage includes expanding the trial vertically to distract the intervertebral space. 1. An expandable trial for an intervertebral space , including a linear member; and,', 'a guide;', "wherein, the linear member slidably translates with it's respective guide to stabilize and/or align the relationship between the top subhead and the bottom subhead when expanding the expandable shell from a collapsed state to an expanded state and collapsing the expandable shell from the expanded state to the collapsed state."], 'a top subhead and a bottom subhead operably connected through a plurality of telescopic stabilizers, each telescopic stabilizer having'}, 'an expandable shell having a proximal region with an end, a mid-region, a distal region with an end, and a lumen; the proximal region having a slider-guide flexibly attached to an expandable head in the distal region, the expandable head having'}2. The trial of claim 1 , wherein a transverse cross-section in the collapsed state having a maximum dimension ranging from 5 mm to 18 mm for placing the frame in an intervertebral space through an annular opening for expansion in the intervertebral space; and,', 'a transverse cross-section in the expanded state having a maximum dimension ranging from 6.5 to 28 mm in the intervertebral space., 'the head has'}3. The trial ...

Deployable Ramped Nose for Implantable Medical Devices

A surgical implant includes a deployable, retractable, or removable ramped nose. During insertion of the implant, the ramped nose is deployed such that the ramped nose can serve to distract a space into which the implant is inserted. At some point during or after insertion, the ramped nose can be collapsed and removed or retracted so that it does not extend beyond the space into which the implant is inserted, while the implant extends at full height throughout the space into which the implant is inserted. The implant includes an implant body having a deployable ramped nose adapted to selectively extend from the body and transition from a first height proximate the implant body to a second, shorter, height distal from the implant body. The deployable ramped nose is adapted to distract an implant site upon insertion of the implantable medical device.

Aligning vertebral bodies

Misaligned bones on opposite sides of a joint are aligned using a first rigid extension securable to one of the misaligned bones using a particular surgical approach, and a second rigid extension having a contacting surface positionable in contact with the other the two misaligned bones from the same surgical approach. The first and second rigid extensions are moved with respect to each other using a lever, whereby a pulling force is exerted on one of the bones, and a pushing force on the other, thereby aligning the first and second misaligned bones.

Bone fusion device

A bone fusion device provides stability to bones during a bone fusion period. The bones include, for example, the vertebrae of a spinal column. The bone fusion device comprises one or more extendable tabs attached to the bone fusion device by associated rotating means. The bone fusion device is preferably inserted by using an arthroscopic surgical procedure. During arthroscopic insertion of the device, the tabs are pre-configured for compactness. In this compact configuration, the tabs are preferably deposed along and/or within an exterior surface of the bone fusion device. After the bone fusion device has been positioned between the bones, one or more tab(s) are extended. In the preferred embodiment, the position of each tab is related to a positioning element and extending blocks. Typically, the tabs advantageously position and brace the bone fusion device in the confined space between the bones until the bones have fused.

EXPANDABLE INTER-BODY FUSION DEVICES AND METHODS

An expandable inter-body fusion device is presented. The expandable 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. 1. An expandable inter-body fusion device for use in surgery comprising:a first plate having an upper bone contact surface, an opposed first inner surface and at least one longitudinal sidewall;a second plate underlying at least a portion of the first plate, the second plate having a lower bone contact surface, an opposed second inner surface and at least one longitudinal sidewall; andan insert comprising a frame having opposed lateral sides from each of which a respective longitudinal rail protrudes laterally, each longitudinal rail extending longitudinally and comprising a plurality of ramps, each ramp having at least one inclined surface and at least one substantially flat surface that define contours of the respective rail in a vertical direction,wherein the insert is positionable in abutting relationship between the first and second plates with their longitudinal sidewalls substantially aligned to form a set of aligned sidewalls defining a plurality of voids therebetween, an unexpanded position, in which the insert is in abutting relationship with the first and second plates and the device has an interior cavity having a first cavity size, and in which each of the plurality of ramps of the insert is positioned substantially within a respective void of the plurality of voids, and', 'an expanded position, in which the insert is in abutting relationship with the first and second plates and the interior ...

INTERVERTEBRAL SPACER WITH CHAMFERED EDGES

Intervertebral implants, assemblies, and methods thereof. An intervertebral implant includes opposing chamfered edges to reduce a diagonal distance between the edges. The reduced diagonal distance minimizes distraction of an intervertebral disc space during insertion of the implant. A tool for insertion and rotation of the implant is also provided. 1. A method of inserting an implant between adjacent vertebrae , the method comprising: a central longitudinal axis extending through the body;', 'an anterior portion and a posterior portion, the posterior portion having an internally threaded opening;', 'a superior surface extending between the anterior portion and the posterior portion;', 'an inferior surface extending between the anterior portion and the posterior portion;', 'a first sidewall extending between the superior surface and the inferior surface on a first side of the longitudinal axis; and', 'a second sidewall extending between the superior surface and the inferior surface on a second side of the longitudinal axis, the first sidewall and the second sidewall comprising a first indentation and a second indentation, respectively, proximate the posterior portion, wherein an intersection of the first sidewall and the superior surface comprises a first chamfered edge and wherein an intersection of the second sidewall and the inferior surface comprises a second chamfered edge, and, 'attaching an insertion tool to the implant, wherein the implant comprises an elongate body having a handle; and', 'a gripper extending distally from the handle, the gripper having a first fork and a second fork extending generally parallel to the first fork, wherein a gap is provided between the first fork and the second fork, the gap being sized to allow the first fork to be inserted into the first indentation and the second fork into the second indention;, 'wherein the insertion tool comprisesinserting the implant between the adjacent vertebrae in a first orientation with the first ...

Laterally Deflectable Implant

A laterally deflectable asymmetric implant for implanting into a body may comprise a deflectable piece having distal and proximal ends and assuming a straightened insertion state. The backbone may abut or interconnect with said deflectable piece at the distal end of the deflectable piece. In a fully deflected state the implant may define an asymmetric shape, e.g. a D-shaped loop, defining an at least partially enclosed volume. The deflectable piece may comprise a sequence of segments interconnected at effective hinges. Longitudinal pressure applied to the proximal end of the deflectable piece (or applied to the backbone in an opposite direction) may cause relative longitudinal movement between the backbone and the proximal end of the deflectable piece and may generate outward horizontal movement of the deflectable piece away from the backbone. In one embodiment, the implant is implanted using lateral access into an anterior zone of a vertebra and deployed posteriorly.

EXPANDABLE INTER-BODY FUSION DEVICES AND METHODS

An expandable inter-body fusion device is presented. The expandable 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 device of claim 1 , wherein the at least one void is sized and shaped to complimentarily accept the ramp of the insert therein.3. The device of claim 1 , wherein the first plate is at a transverse angle relative to the second plate.4. The device of claim 1 , wherein the at least one ramp comprises an upper inclined surface claim 1 , a lower inclined surface claim 1 , an upper flat surface and a lower flat surface.5. The device of claim 1 , wherein the insert is movable about and between a first insert position claim 1 , in which the device is in the first unexpanded position claim 1 , and a second insert position claim 1 , in which the device is in the second expanded position.6. The device of claim 5 , wherein in the second insert position claim 5 , the at least one substantially flat surface supports at least a portion of the longitudinal sidewall of at least one of the first and second plates.7. The device of claim 5 , wherein upon movement about and between the first insert position and the second insert position claim 5 , the at least one inclined surface cams a portion of the longitudinal sidewall of at least one of the first and second plates.8. The device of claim 5 , wherein the device has a leading end and a trailing end.9. The device of claim 8 , wherein the at least one inclined surface of the at least one ramp is positioned between the leading end of the device and the at least one flat ...

IMPLANT

The invention relates to an implant for replacing bone or cartilage material, which is constituted by a plurality of elements (B, B B B B) produced from a non-metallic, linearly elastic material, an element (B, B B B B) being connected to adjacent elements (B, B B B B) by a viscoelastic polymer material such that gaps (L) remain between the adjacent elements (B, B B B B) and that the adjacent elements (B, B B B B) can move relative to one another. 1. An implant for replacing bone or cartilage material , which is constituted by a plurality of elements produced from a non-metallic , linearly elastic material , an element being connected to adjacent elements by a viscoelastic polymer material such that gaps remain between the adjacent elements and that the adjacent elements can move relative to one another , the gaps being used to accommodate cell material or bioactive material in the applied state ,wherein the polymer material is selected from the following group: epoxy resin, preceramic polymers, silicone rubber, polylactide, polycaprolactone, polymethylmethacrylates, polylactide-co-glycolide (PLGA), polyhydroxyalkanoates (PHBHHX), fibrin, butyrates, silk, chitosan,wherein the polymer material forms a polymer layer which overlays the elements and is attached to the upper side of the elements, andwherein the polymer layer has apertures.2. The implant according to claim 1 , wherein the elements comprise a plurality of elements produced from different materials.3. The implant according to claim 1 , wherein the linearly elastic material has a modulus of elasticity of at least 10 GPa.4. The implant according to claim 1 , wherein the linearly elastic material is selected from the group consisting of: ceramic claim 1 , glass ceramic claim 1 , glass claim 1 , or a composite material containing at least one of the aforementioned materials.5. The implant according to claim 1 , wherein the linearly elastic material is selected from the group consisting of: aluminium oxide claim ...

ADJUSTABLE INTERBODY FUSION DEVICES AND METHODS OF USE

Interbody fusion devices, insertion tools, methods for assembling an interbody fusion device, and methods for inserting a medical device between two vertebral bodies are disclosed. The interbody fusion device includes a base member, a top member, and at least one movement mechanism. The base member includes at least one of a pivotal cylinder and a hinge channel. The top member includes at least one of a pivot cylinder and a hinge channel. The at least one pivot cylinder of the base member engages the at least one hinge channel of the top member and the at least one pivot cylinder of the top member engages the at least one hinge channel of the base member. The at least one movement mechanism engages the top member and the base member. Also disclosed are a vertebral spacer device and an interbody spacer system including an insertion tool and an interbody fusion device. 1. An interbody system , comprising: a handle;', 'a device end;', 'a housing connecting the handle and the device end;', 'a securement mechanism coupled to the handle, extending through the housing and protruding from the device end;', 'at least one adjustment mechanism coupled to the handle, extending through the housing and protruding from the device end;', 'a first knob for actuating the securement mechanism; and', 'at least one second knob for actuating the at least one adjustment mechanism; and, 'a device tool, comprising a first member comprising an interior surface, an outer surface configured to engage a first vertebral body;', 'a second member pivotably coupled with the first member via a hinge, the second member comprising an interior surface, an outer surface configured to engage a second vertebral body, a tool attachment opening for receiving the securement mechanism of the device tool, and at least one adjustment opening adjacent the tool attachment opening configured to receive the at least one adjustment mechanism; and', 'at least one movement mechanism extending between the interior ...

EXPANDABLE INTERSPINOUS PROCESS FIXATION DEVICE

An expandable interspinous process fixation system capable of restoring spinal stability and facilitating fusion. In one embodiment, the expandable interspinous process fixation system 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. Each endplate supporting fixed and/or adjustable spinous process engaging plates. 1. An apparatus comprising:a first endplate for an intervertebral implant, wherein the first endplate comprises a first plate portion having a first upper surface and a first lower surface, wherein the first endplate further comprises first front ramped portions extending away from the first lower surface and first rear ramped portions extending away from first lower surface, the first endplate having a first lateral adjustment arm extending from a first edge thereof;a second endplate for an intervertebral implant, wherein the second endplate comprises a second plate portion having a second upper surface and a second lower surface, wherein the second endplate further comprises second front ramped portions extending away from the second lower surface and second rear ramped portions extending away from second lower surface, the second endplate having a second lateral adjustment arm extending from a first edge thereof;a first fixed plate extending along a second edge of the first endplate opposite the first edge thereof, the first fixed plate extending substantially perpendicular to the first endplate and having an inner surface defining a first spinous process engaging surface;a second fixed plate extending along a second edge of the second endplate opposite the first edge thereof, the second fixed plate extending substantially perpendicular to the second endplate and having an inner surface defining a second spinous process engaging surface;a first sliding plate adjustably mounted on the first ...

SPINAL IMPLANT SYSTEM AND METHOD

A spinal implant includes a chassis extending along a first axis and including a first thread. A first member extends along a second axis and is pivotably coupled to the chassis. A second member extends along a third axis between and is pivotably coupled to the chassis. A rack includes opposite top and bottom surfaces. A first spur is coupled to the first member such that the first spur engages the top surface. A second spur is coupled to the second member such that the second spur engages the bottom surface. An actuator includes second thread that engages the first thread such that rotation of the actuator move the implant between a first orientation in which the second and third axes extend parallel to the first axis and a second orientation in which the second and third axes extends at an acute angle relative to the first axis. 1. A spinal implant comprising:a chassis extending along a first longitudinal axis between opposite first and second ends, the chassis comprising a body and spaced apart first and second extensions extending from the body, the body comprising a first mating part;a first member extending along a second longitudinal axis between opposite first and second ends, the first end of the first member being pivotably coupled to the first end of the chassis;a second member extending along a third longitudinal axis between opposite first and second ends, the first end of the second member being pivotably coupled to the first end of the chassis;a rack positioned between the extensions, the rack including opposite top and bottom surfaces;a first spur coupled to the second end of the first member such that the first spur engages the top surface;a second spur coupled to the second end of the second member such that the second spur engages the bottom surface; andan actuator comprising a second mating part that engages the first mating part such that rotation of the actuator relative to the chassis translates the rack relative to the chassis along the first ...

Porous spinal implant

A surgical implant and a surgical kit. The surgical implant has a body portion comprising a first hole formed in an exterior surface of the body portion, a second hole adjacent the first hole, and at least one through-hole within the body portion and extending entirely thought a depth of the body portion extending entirely thought a depth of the body portion. The implant has a central opening abutting the body portion and extending through the body portion. The first hole has a first sidewall and a first cavity in the body portion, the second hole has a second sidewall and a second cavity in the body portion, and the first cavity and the second cavity have an interconnected opening there between. The surgical kit includes the surgical implant and an intervertebral insertion device.

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. 1. A method of installing an implant , the method comprising: a first endplate having at least an upper side, a lower side, and a front side, the upper side of the first endplate configured to engage a first bone;', 'a second endplate having at least an upper side, a lower side, and a front side, the lower side of the second endplate configured to engage a second bone;', 'a frame, the frame located at least partly between the upper endplate and the lower endplate; and', 'an actuator screw, the actuator screw rotatably connected to the frame,', 'wherein the first endplate is movable relative to the second endplate such that in a first position the first endplate and the second endplate are a first distance from each other and in a second position the first endplate and the second endplate are a second distance from each other, and', 'wherein the first distance is less than the second distance; and, 'inserting an implant at a collapsed height into an intervertebral disc space, the implant comprisingexpanding the implant to restore the intervertebral disc space.2. The method of claim 1 , wherein the implant is inserted into the spinal column ...

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 an exemplary embodiment, the present invention provides an intervertebral implant. The intervertebral implant may be configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width.

SPINAL IMPLANTS CONFIGURED FOR TISSUE SPARING ANGLE OF INSERTION AND RELATED METHODS

Spinal implants that are configured for a minimally invasive approach to a patient's intervertebral disc space, optimized to avoid blood vessels and nervous tissue, maximizing endplate coverage and promoting sagittal balance, are provided. Insertion and fixation can be accomplished through a narrow access window, thereby allowing better access to more spinal levels while being less invasive than other approaches. The spinal implants may facilitate fusion, and include visualization features to assist in the implantation and verify proper placement and vary segmental angle of lordosis. Methods of implanting the spinal implants to treat a patient's spine are also disclosed. 1. A method of treating a patient's spine , comprising:accessing at least a portion of a patient's spine;inserting a spinal implant between vertebral bodies of the patient's spine, wherein the spinal implant comprises: a body having an upper surface, a lower surface, and a pair of sidewalls extending therebetween, the sidewalls being connected by an intermediate wall segment at a corner and converging with each other at a rounded nose to form three sides with a substantially triangular profile, the pair of sidewalls including one sidewall that is longer than the other sidewall, the body further including a central opening extending through the upper and lower surfaces, and two or more apertures within the intermediate wall segment for receiving a fixation element; andwherein the spinal implant is introduced into the patient's spine along an axis of trajectory that is at an oblique angle relative to the midline of the spine.2. The method of claim 1 , wherein the spinal implant includes visualization markers claim 1 , and further including the step of positioning the implant by observing the visualization markers under x-ray or intraoperative imaging.3. The method of claim 1 , wherein at least one of the visualization markers is a radiopaque anti-rotation marker claim 1 , and further including the ...

Surgical implant with guiding rail

A prosthetic intervertebral spacer is disclosed. The spacer preferably includes a body and an interface extending away from the body for use during implantation of the spacer. Methods of implanting the spacer and tools used during such procedure are also disclosed.

Expandable fusion device with independent expansion systems

Expandable spinal fusion devices, systems, and methods of using them are provided, and they can be inserted in a subject in a collapsed state through a small surgical corridor, and the expand cephalocaudal only, transverse only, or in both directions, in which direction of expansion can also be obtained independently, if desired, after the insertion. These inventions are valuable in reducing risk and surgical complexity, allowing for an on-the-fly selection of a desirable width footprint, a desired control of height expansion through a gradual cephalocaudal expansion, and a desired control of the alignment of the adjacent vertebral bodies. Devices, systems, and methods are also offered to provide a desired control of the contact area desired between the device and the upper and lower vertebral endplates achieved, for example, using an interdigitated endplate system.

Stand Alone Intervertebral Fusion Device

An angled fixation device, such as an angled screw. This angled fixation device may be used by the surgeon to secure a spacer to a spinal disc space. The proximal end portion of the angled fixation device is driven perpendicular to the anterior wall of the spacer, and so is parallel to the vertebral endplates and in-line with the inserter. The distal end portion of the angled fixation device is oriented at about a 45 degree angle (plus or minus 30 degrees) to the vertebral endplate it enters.

SPINAL IMPLANTS CONFIGURED FOR TISSUE SPARING ANGLE OF INSERTION AND RELATED METHODS

Spinal implants that are configured for a minimally invasive approach to a patient's intervertebral disc space, optimized to avoid blood vessels and nervous tissue, maximizing endplate coverage and promoting sagittal balance, are provided. Insertion and fixation can be accomplished through a narrow access window, thereby allowing better access to more spinal levels while being less invasive than other approaches. The spinal implants may facilitate fusion, and include visualization features to assist in the implantation and verify proper placement and vary segmental angle of lordosis. Methods of implanting the spinal implants to treat a patient's spine are also disclosed. 1. A spinal implant comprising:a body having an upper surface, a lower surface, and a pair of sidewalls extending therebetween, the sidewalls being connected by an intermediate wall segment and converging at a rounded nose, the pair of sidewalls including one sidewall that is longer than the other sidewall, the body further including a central opening extending through the upper and lower surfaces, and one or more apertures within the intermediate wall segment for receiving a fixation element;wherein the body is configured for insertion along a trajectory represented by an axis that is oblique relative to a midline of a vertebral body of a patient's spine.2. The spinal implant of claim 1 , wherein the upper and lower surfaces extend along planes that are angled relative to one another to form a generally wedgeshaped or anatomically shaped profile for the body.3. The spinal implant of claim 1 , wherein the sidewalls intersect the intermediate wall segment at rounded posterolateral corners.4. The spinal implant of claim 1 , wherein the spinal implant has rounded outer edges.5. The spinal implant of claim 1 , wherein the implant includes visualization markers.6. The spinal implant of claim 5 , wherein the visualization markers are configured for imaging within the disc space in relation to reference ...

INTERBODY FUSION CAGE WITH ADJUSTABLE COVER, AND RELATED MANUFACTURE METHOD

The invention concerns an expandable intersomatic cage () intended to be implanted between a first and second vertebral bodies of a patient, comprising: 11451. An expandable intersomatic cage () intended to be implanted between a first vertebral body () and a second vertebral body () of a patient , said cage () comprising:{'b': 2', '6', '4, 'a cage body (), comprising a bearing surface (A) intended to be positioned so as to bear against the first vertebral body (),'}{'b': 3', '3', '5', '2', '12', '13', '6, 'an expansion cap (), comprising an element (A) for bearing against the second vertebral body (), and mounted on the cage body () via a linking element (, ) so as to be able to pivot according to an inclination stroke about an axis of inclination (X-X′) relative to the bearing surface (A),'}{'b': 16', '3', '3, 'a means () for controlling the inclination of the expansion cap () capable of maintaining the expansion cap () in a desired inclination of the inclination stroke,'}{'b': 1', '2', '41', '42', '1', '43', '1', '4', '5, 'said cage () being characterized in that said cage body () comprises at least one fastening orifice () forming an oblique well () capable of receiving and guiding, from the outside of said cage (), a means () for fastening the cage () to the first vertebral body () and/or to the second vertebral body ().'}212644434124. The cage () according to the preceding claim , characterized in that said cage body () includes a bottom plate () , the latter is provided with at least one primary through hole () through which said fastening means () introduced by the fastening orifice () can open so as to fasten said cage body () to the first vertebral body ().31345434125454336. The cage () according to any one of the preceding claims , characterized in that said expansion cap () is provided with at least one secondary through hole () through which said fastening means () introduced by the fastening orifice () can open so as to fasten said cage body () to the ...

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 an exemplary embodiment, the present invention provides an intervertebral implant. The intervertebral implant may be configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width. 1. An intervertebral implant comprising:an upper endplate comprising an first upper endplate portion and a second upper endplate portion;a lower endplate comprising a first lower endplate portion and a second lower endplate portion;a front sloped actuator configured to movingly engage a front end of the upper endplate and a front end of the lower endplate, the front sloped actuator comprising a front height actuator and a front width actuator; anda rear sloped actuator configured to movingly engage a rear end of the upper endplate and a rear end of the lower endplate, the rear sloped actuator comprising a rear height actuator and a rear width actuator;wherein actuation of the front and rear width actuators transition the intervertebral implant from a first width to a second width and actuation of the front and rear height actuators transition the intervertebral implant from a first height to a second height such that the intervertebral implant transitions to the second width before the intervertebral implant transitions to the second height.2. The intervertebral implant of :wherein the first upper endplate portion and the second upper endplate portion each comprise a front ramped surface in moving engagement with the front sloped actuator and a rear ramped surface in moving engagement with the rear sloped actuator, andwherein the second lower endplate portion and the second upper endplate portion each comprise a front ramped surface in moving engagement ...

Stand Alone Intervertebral Fusion Device

An angled fixation device, such as an angled screw. This angled fixation device may be used by the surgeon to secure a spacer to a spinal disc space. The proximal end portion of the angled fixation device is driven perpendicular to the anterior wall of the spacer, and so is parallel to the vertebral endplates and in-line with the inserter. The distal end portion of the angled fixation device is oriented at about a 45 degree angle (plus or minus 30 degrees) to the vertebral endplate it enters. 1. (canceled)2. An intervertebral implant comprising:a faceplate configured to be coupled to a bone cage such that a faceplate surface of the faceplate faces the bone cage when the faceplate is coupled to the bone cage, the faceplate including:a first arm that extends from the faceplate surface and terminates at a first distal end that is offset from the faceplate surface in a first direction, the first arm including a first inner sidewall configured to face the bone cage when the faceplate is coupled to the bone cage,a second arm that extends from the faceplate surface and terminates at a second distal end that is offset from the faceplate surface in the first direction, such that the second arm is offset from the first arm with respect to a second direction that is perpendicular to the first direction so as to define a gap between the first and second arms that is configured to receive the bone cage when the faceplate is coupled to the bone cage, the second arm including a second inner sidewall configured to face the bone cage when the faceplate is coupled to the bone cage,wherein the first arm defines a first projection that extends from the first inner sidewall toward the second arm so as to terminate at a first tapered tip that is offset from the first distal end in a direction opposite the first direction, and the second arm defines a second projection that extends from the second inner sidewall toward the first arm so as to terminate at a second tapered tip that is ...