An expandable device comprises a body defining a bore, a shaft received in the bore of the body, an end plate coupled to the shaft. Rotation of the shaft translates the end plate with respect to the body. A locking mechanism is engaged with the shaft so as to permit the shaft to rotate in a first direction and apply a resistance force to resist the shaft when attempting to rotate in a second direction. A method of using the expandable device is also disclosed.
A spinal fixation device includes a modular head assembly and a bone screw having a head and shank. The modular head assembly includes a housing defining proximal and distal surfaces and a throughhole therethrough; an anvil slidable within the throughhole; a biasing member circumferentially surrounding the anvil; an assembly cap secured to the housing and defining an inner surface having a first portion with a first diameter and a second portion with a second diameter smaller than the first diameter; a retaining ring movable from the first portion of the assembly cap to the second portion of the assembly cap to transition the retaining ring between a first configuration in which the retaining ring is sized to receive the head of the bone screw and a second configuration in which the retaining ring is compressed about the bone screw to fix the bone screw relative to the modular head assembly.
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Human allograft tissue; Human allograft bone and tissue; Surgical implants comprising living tissue; Bone graft material comprising cancellous chips with viable cells, demineralized bone matrix and periosteum for bone fillers consisting of living materials
A spinal fixation construct for aligning vertebral bodies includes a bone screw, a spinal rod, a flexible member, and a fixation member. The spinal rod is disposed within a saddle portion of a housing of the bone screw, and includes an elongated body having a first end and a second end. The spinal rod is formed from a first material having a first modulus of elasticity. The flexible member is coupled to the spinal rod, and includes an elongated body having a first end portion and a second end portion. The flexible member is formed from a second material having a second modulus of elasticity that is different from the first modulus of elasticity. The fixation member includes a threaded body portion and a head portion defining a hole therethrough. A portion of the flexible member extends through the hole of the head portion.
An expandable spinal implant configured for positioning within a space between adjacent vertebral bodies includes an upper body, a lower body, a ratchet mechanism, and a plurality of bone screws. The upper body and lower body are pivotably affixed at a first end and are capable of movement relative to each other. The ratchet mechanism is slidably disposed on one of the upper and lower body and is capable of engaging the opposite one of the upper and lower body thereby permitting movement of the upper and lower body relative to each other in a first direction, but not in a second direction. An insertion instrument capable of being attached to the expandable spinal instrument and a method of performing spinal surgery is also disclosed.
A modular pedicle screw for spinal fixation. The pedicle screw includes a bone screw and a modular head assembly. The bone screw having a head and a shank, the head defining at least one groove. The modular head assembly includes a housing having a proximal end, a distal end and a throughbore extending along a longitudinal axis of the housing between the proximal and distal ends of the housing, and an anvil disposed within the throughbore. The modular head assembly includes at least one protrusion sized and shaped to be received by the at least one groove for restricting relative movement between the housing and the bone screw to a single plane.
A flexible implant system includes a flexible implant, an implant housing, and an implant set screw. The flexible implant is configured to loop around a portion of a bony element. The implant housing includes a housing body defining a rod passage configured to receive an rod. The housing body also defines an implant passage that receives a portion of the flexible implant. The implant set screw engages the flexible implant within the implant passage to fix the flexible implant to the implant housing.
A spinal fixation device includes a modular head assembly and a bone screw having a head and a shank. The modular head assembly includes: a housing defining a throughhole from a proximal surface to a distal surface of the housing; an anvil slidable within the throughhole; a washer; an assembly cap secured to the housing; a first biasing member arranged to bias the anvil toward the proximal surface of the washer; a retaining ring positioned at least partially within the cavity of the assembly cap; and a second biasing member arranged to bias the retaining ring toward the second portion of the assembly cap. Movement of the retaining ring from a first portion of the assembly cap to a second portion of the assembly cap compresses the retaining ring from a neutral configuration to a compressed configuration thereby securing the bone screw relative to the housing.
In some embodiments, the present disclosure relates to a system that includes an insertion tool and a drill guide. The insertion tool includes a body with a distal portion and a distal end. The body has a first engagement feature extending longitudinally along the distal portion and two arms extending longitudinally from the distal end of the body. The drill guide includes two bores and an open faced channel therebetween. The open faced channel includes a second engagement feature slidably engageable with the first engagement feature on the body of the insertion tool. The two bores are adapted for the disposal of a fastener driver tool therethrough.
In some embodiments, the present disclosure relates to a system that includes an insertion tool and a drill guide. The insertion tool includes a body with a distal portion and a distal end. The body has a first engagement feature extending longitudinally along the distal portion and two arms extending longitudinally from the distal end of the body. The drill guide includes two bores and an open faced channel therebetween. The open faced channel includes a second engagement feature slidably engageable with the first engagement feature on the body of the insertion tool. The two bores are adapted for the disposal of a fastener driver tool therethrough.
A surgical instrument includes a body, a securement arm, a clamp lock, and a tensioning assembly. The body defines a longitudinal axis and has proximal and distal portions. The distal portion defines a recess. The securement arm is coupled to the body and translatable along the body in a direction parallel to the longitudinal axis between first and second position. The clamp lock is pivotally coupled to the distal portion of the body. The clamp lock is pivotable between secured and unsecured configurations. The tensioning assembly translatable in a direction parallel to the longitudinal axis between proximal and distal position. The tensioning assembly configured to draw a flexible band to tension the flexible band about a bony element.
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.
A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil. A rod reducer may be secured to the polyaxial pedicle screw to secure a spinal rod within the housing.
A spinal fixation construct for aligning vertebral bodies includes a bone screw, a spinal rod, a flexible member, and a fixation member. The spinal rod is disposed within a saddle portion of a housing of the bone screw, and includes an elongated body having a first end and a second end. The spinal rod is formed from a first material having a first modulus of elasticity. The flexible member is coupled to the spinal rod, and includes an elongated body having a first end portion and a second end portion. The flexible member is formed from a second material having a second modulus of elasticity that is different from the first modulus of elasticity. The fixation member includes a threaded body portion and a head portion defining a hole therethrough. A portion of the flexible member extends through the hole of the head portion.
A rod reducer includes a shaft, a sleeve assembly defining a bore dimensioned to receive the shaft therethrough, a housing defining a bore dimensioned to receive the shaft, arm members operatively associated with the housing, and an anvil operatively coupled with the shaft. The sleeve assembly includes a locking tab. The housing includes a groove configured to selectively receive the locking tab of the sleeve assembly. The housing includes a locking ledge portion in registration with the groove. The anvil is transitionable between a proximal position, in which, the arm members are spaced apart, and a distal position, in which, the arm members are in an approximated position. The sleeve assembly is rotatable between an engaged state in which, the locking ledge portion inhibits relative axial displacement of the sleeve assembly with the housing, and a disengaged state in which, the sleeve assembly is axially movable relative to the housing.
A modular pedicle screw for spinal fixation. The pedicle screw includes a bone screw and a modular head assembly. The bone screw having a head and a shank, the head defining at least one groove. The modular head assembly includes a housing having a proximal end, a distal end and a throughbore extending along a longitudinal axis of the housing between the proximal and distal ends of the housing, and an anvil disposed within the throughbore. The modular head assembly includes at least one protrusion sized and shaped to be received by the at least one groove for restricting relative movement between the housing and the bone screw to a single plane.
A system for dilating tissue includes a retractor having a pair of retractor blades that are movable towards and away from each other to retract tissue of a patient. The retractor blades have longitudinal guide channels. A first pin is attachable to a first vertebra. The system also includes an interbody spacer insertion device that has a guide channel for slidably engaging the longitudinal channel guide and is releasably attachable to an interbody spacer. The interbody spacer insertion device is configured to guide the interbody spacer into a space between adjacent vertebrae. A method for using the system includes advancing the retractor blades towards first and second vertebrae. The first retractor blade is attached to the first vertebra using the first pin and the retractor blades are moved away from each other. The interbody spacer insertion device is translated towards the vertebrae to position the interbody spacer between the vertebrae.
A spinal fixation device includes a modular head assembly and a bone screw having a head and a shank. The modular head assembly includes a housing defining proximal and distal surfaces and a throughhole therethrough; an anvil slidable within the throughhole; a biasing member circumferentially surrounding the anvil; an assembly cap secured to the housing and defining an inner surface having a first portion with a first diameter and a second portion with a second diameter smaller than the first diameter; a retaining ring movable from the first portion of the assembly cap to the second portion of the assembly cap to transition the retaining ring between a first configuration in which the retaining ring is sized to receive the head of the bone screw and a second configuration in which the retaining ring is compressed about the bone screw to fix the bone screw relative to the modular head assembly.
In some embodiments, the present disclosure relates to a system that includes an insertion tool and a drill guide. The insertion tool includes a body with a distal portion and a distal end. The body has a first engagement feature extending longitudinally along the distal portion and two arms extending longitudinally from the distal end of the body. The drill guide includes two bores and an open faced channel therebetween. The open faced channel includes a second engagement feature slidably engageable with the first engagement feature on the body of the insertion tool. The two bores are adapted for the disposal of a fastener driver tool therethrough.
(1) Massage apparatus for the neck, shoulders, back, hips, knees, feet and glutes for the purposes of trigger point release used in the field of physical therapy; massage apparatus, namely, exercise balls, manually operated resistance bands and hand-held massagers for the purposes of trigger point release used in the field of physical therapy
A spinal fixation device includes a modular head assembly and a bone screw having a head and a shank. The modular head assembly includes: a housing defining a throughhole from a proximal surface to a distal surface of the housing; an anvil slidable within the throughhole; a washer; an assembly cap secured to the housing; a first biasing member arranged to bias the anvil toward the proximal surface of the washer; a retaining ring positioned at least partially within the cavity of the assembly cap; and a second biasing member arranged to bias the retaining ring toward the second portion of the assembly cap. Movement of the retaining ring from a first portion of the assembly cap to a second portion of the assembly cap compresses the retaining ring from a neutral configuration to a compressed configuration thereby securing the bone screw relative to the housing.
A compressor/distractor system for operating on a spine is disclosed. The system includes two rod reducers which each advance a spinal rod into the shoulder portion of a pedicle screw. Each rod reducer includes an inner member, an outer member, and a pair of gripping members. Each outer member receives and advances the spinal rod into the pedicle screw. The outer member also includes a through slot which receives the proximal end of each of the pair of gripping members which may limit the longitudinal translation of the outer member with respect to the inner member. The compressor/distractor system may include a compressor/distractor device which has a compressing, a distracting, and a neutral configuration. A method for using the minimally invasive rod reducers with the compressor/distractor system to secure at least two pedicle screws in desired positions on a spinal rod is also disclosed.
In some embodiments, the present disclosure relates to a system that includes an insertion tool and a drill guide. The insertion tool includes a body with a distal portion and a distal end. The body has a first engagement feature extending longitudinally along the distal portion and two arms extending longitudinally from the distal end of the body. The drill guide includes two bores and an open faced channel therebetween. The open faced channel includes a second engagement feature slidably engageable with the first engagement feature on the body of the insertion tool. The two bores are adapted for the disposal of a fastener driver tool therethrough.
A tool (100) for use with a fastener includes a drive shaft (110) extending along a longitudinal axis (X) from a proximal end (102) to a distal end (104). The tool has an engaging tip (122) at the distal end (104) of the drive shaft (110) sized and shaped to detachably engage a fastener such that the engaging tip (122) is rotationally fixed to the fastener when the engaging tip (122) is engaged with the fastener. The tool (100) further includes a compressible engagement member (150) detachably coupled to the drive shaft (110). The compressible engagement member (150) extends from the engaging tip (122) and is sized and shaped to detachably engage with a receiving portion of the fastener. In an undeformed configuration, the compressible engagement member (150) has a width greater than the receiving portion.
In some embodiments, the present disclosure relates to a system that includes an insertion tool and a drill guide. The insertion tool includes a body with a distal portion and a distal end. The body has a first engagement feature extending longitudinally along the distal portion and two arms extending longitudinally from the distal end of the body. The drill guide includes two bores and an open faced channel therebetween. The open faced channel includes a second engagement feature slidably engageable with the first engagement feature on the body of the insertion tool. The two bores are adapted for the disposal of a fastener driver tool therethrough.
A spinal implant has a proximal region and a distal region, and includes an upper body and a lower body each having inner surfaces disposed in opposed relation relative to each other. A proximal adjustment assembly is disposed between the upper and lower bodies at the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies at the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other to change a vertical height of at least one of the proximal region or the distal region of the spinal implant.
A spinal implant has proximal and distal regions, and includes upper and lower bodies. A proximal adjustment assembly is disposed between the upper and lower bodies in the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies in the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other, both concurrently and alternately, to change a vertical height of at least one of the proximal or distal regions of the spinal implant. A set screw is removably disposed within the proximal region of the spinal implant to lock the vertical height of the proximal and distal regions of the spinal implant.
The spinal implant (110) described in the present disclosure utilizes an augmented expanding system to build the desired height spacer in-situ without the need for mechanically expanding devices. An expanding spacer system includes a plurality of implant components (112a, 112b, 112c) configured to mate with each other in the intervertebral disc space and a positioning system (150) used to insert each of the plurality of implant components (112a, 112b, 112c). Each implant component (112a, 112b, 112c) has a smaller dimension and a larger dimension. The positioning system (150) is used to insert the first component (112a) into the disc space with the smaller dimension parallel to the spinal axis, and the positioning system (150) is then used to rotate the first implant component (112a) to distract the disc space. Additional implant components (112c, 112c) are added and rotated to further distract the disc space until a desired height is reached.
In some embodiments, the present disclosure relates to a system that includes an insertion tool and a drill guide. The insertion tool includes a body with a distal portion and a distal end. The body has a first engagement feature extending longitudinally along the distal portion and two arms extending longitudinally from the distal end of the body. The drill guide includes two bores and an open faced channel therebetween. The open faced channel includes a second engagement feature slidably engageable with the first engagement feature on the body of the insertion tool. The two bores are adapted for the disposal of a fastener driver tool therethrough.
A flexible implant system includes a flexible implant, an implant housing, and an implant set screw. The flexible implant is configured to loop around a portion of a bony element. The implant housing includes a housing body defining a rod passage configured to receive an rod. The housing body also defines an implant passage that receives a portion of the flexible implant. The implant set screw engages the flexible implant within the implant passage to fix the flexible implant to the implant housing.
An intervertebral implant includes a chassis and endplates movable relative to the chassis. The endplates are each movable between a contracted position, wherein the endplates are nearer to a central axis defined relative to the chassis, and an expanded position, wherein the endplates are farther from the central axis. The chassis includes at least one wedge that, in turn, includes surfaces along which the endplates travel in transition between the contracted and expanded positions. The wedge remains stationary relative to the central axis throughout transitions between the contracted and expanded positions.
A modular pedicle screw for spinal fixation. The pedicle screw includes a bone screw and a modular head assembly. The bone screw having a head and a shank, the head defining at least one groove. The modular head assembly includes a housing having a proximal end, a distal end and a throughbore extending along a longitudinal axis of the housing between the proximal and distal ends of the housing, and an anvil disposed within the throughbore. The modular head assembly includes at least one protrusion sized and shaped to be received by the at least one groove for restricting relative movement between the housing and the bone screw to a single plane.
A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalls define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.
A spinal interbody implant (300) includes an outer shell (305), a fill material (309) disposed within the outer shell (305) and a plurality of tubes (313) extending from a first outer surface of the implant (300) to a second outer surface of the implant (300) through the fill material. The fill material (309) is more porous than the outer shell (305) and the plurality of tubes (313).
Disclosed herein are embodiments of a spinal implant having structures that incorporate a solid material and a porous material. The solid material provides the implant with an outer shell for structural integrity while the porous material, distributed within an interior of the implant as a lattice structure for example, promotes visibility of the implant in radiological imaging, promotes bony ingrowth and cell attachment and improves wicking.
A spinal fixation device includes an outer housing and an end plate assembly coupled with the outer housing. The outer housing defines an aperture and a longitudinal axis. At least a portion of the end plate assembly is slidably received within the outer housing. The end plate assembly includes a first end plate configured to engage a vertebral body, wherein the end plate assembly is selectively movable between a first position in which the first end plate is spaced apart from the outer housing and a second position in which the first end plate is adjacent the outer housing. Further, the first end plate is selectively adjustable to an angular orientation of a plurality of angular orientations with respect to the longitudinal axis of the outer housing.
Devices, systems and methods for minimally open orthopedic spine surgery are disclosed. A first flexible screw-based retractor is designed to be coupled to each pedicle screw inserted into adjacent vertebral bodies. A retractor system is provided in which a first retractor blade is mounted to one of the screws and a second movable retractor blade is moved away from the first blade, in a medial direction, to create a working channel through which the disc space may be accessed for passing instruments and implants. Light may be incorporated into the device to illuminate the surgical field. One or all of the retractor blades may be made of a sterilizable plastic or metal and be disposable or reusable.
A surgical implant includes a first portion and a second portion. The first portion includes a body and connector assemblies. The body includes a posterior surface and defines a first bore defining an acute angle with respect to a first axis that is orthogonal to the posterior surface. The connector assemblies are disposed on opposing lateral sides of the body. Each connector assembly is selectively rotatable relative to the body. The second portion includes a base extending in a cephalad direction from the first portion, and an extension extending in the cephalad direction from the base. The base defines second bores configured to receive respective bone screws. The extension defines a third bore. The first bore of the body and the third bore of the extension define a second axis. The second bores are defined along a third axis orthogonal to the second axis.
A spinal fixation device includes a modular head assembly and a bone screw having a head and a shank. The modular head assembly includes a housing defining proximal and distal surfaces and a throughhole therethrough; an anvil slidable within the throughhole; a biasing member circumferentially surrounding the anvil; an assembly cap secured to the housing and defining an inner surface having a first portion with a first diameter and a second portion with a second diameter smaller than the first diameter; a retaining ring movable from the first portion of the assembly cap to the second portion of the assembly cap to transition the retaining ring between a first configuration in which the retaining ring is sized to receive the head of the bone screw and a second configuration in which the retaining ring is compressed about the bone screw to fix the bone screw relative to the modular head assembly.
A spinal fixation device is provided including a modular head assembly and a bone screw. The modular head assembly includes a housing, an anvil, an insert, and a snap ring. The housing defines a proximal surface and an opposite, distal surface, and the proximal and distal surfaces define a throughbore therethrough. The anvil is configured to be slidably received within a portion of the throughbore. The insert defines a proximal surface and an opposite, distal surface, and the distal surface defines a first counterbore therein that terminates at a first annular surface. The first annular surface defines a second counterbore that terminates at a second annular surface. The snap ring is configured to be disposed within the first counterbore of the insert when in a first configuration, and within the second counterbore of the insert when in a second configuration.
An assembly for correcting spinal deformities may include at least lateral rods extending across adjacent vertebrae to be retained at either end by pedicle screws. A cross-coupler may be coupled to each lateral rod, and a longitudinal rod may run along the spine and be coupled to the lateral rods by the cross-couplers. The assembly may be used to correct spinal deformities by manipulating the pedicle screws or cross-couplers to rotate about the lateral rods or the longitudinal rod.
An expandable device comprising, a body defining a bore, a shaft received in the bore of the body, an end plate coupled to the shaft, wherein rotation of the shaft translates the end plate with respect to the body, and a locking mechanism engaged with the shaft so as to permit the shaft to rotate in a first direction and apply a resistance force to resist the shaft when attempting to rotate in a second direction.
Provided is a novel rod reducing device including a screw jack mechanism that is moveably engaged with an elongated grasping fork assembly, the screw jack mechanism having an elongated threaded portion, the elongated threaded portion being connected at its most distal end to a rod contact member, which is positioned in sliding circumferential contact with each of the two opposing elongated grasping members and the most proximal end of the elongated threaded portion terminating in a controlling member, which can be activated in a measured and controlled manner. A method of using the device is also provided.
An expandable spinal implant configured for positioning within a space between adjacent vertebral bodies includes an upper body, a lower body, a ratchet mechanism, and a plurality of bone screws. The upper body and lower body are pivotably affixed at a first end and are capable of movement relative to each other. The ratchet mechanism is slidably disposed on one of the upper and lower body and is capable of engaging the opposite one of the upper and lower body thereby permitting movement of the upper and lower body relative to each other in a first direction, but not in a second direction. An insertion instrument capable of being attached to the expandable spinal instrument and a method of performing spinal surgery is also disclosed.
A system for dilating tissue includes a retractor having a pair of retractor blades that are movable towards and away from each other to retract tissue of a patient. The retractor blades have longitudinal guide channels. A first pin is attachable to a first vertebra. The system also includes an interbody spacer insertion device that has a guide channel for slidably engaging the longitudinal channel guide and is releasably attachable to an interbody spacer. The interbody spacer insertion device is configured to guide the interbody spacer into a space between adjacent vertebrae. A method for using the system includes advancing the retractor blades towards first and second vertebrae. The first retractor blade is attached to the first vertebra using the first pin and the retractor blades are moved away from each other. The interbody spacer insertion device is translated towards the vertebrae to position the interbody spacer between the vertebrae.
A surgical retractor includes a body portion and first and second retractor arms operatively coupled thereto. The body portion includes a rotatable knob, a first blade holder, and a first blade. The first blade is configured for axial displacement with the first blade holder and angulation relative to the first blade holder about a first axis. The first and second retractor arms include respective second and third blades detachably secured thereto. The first and second retractor arms are transitionable between an approximated configuration and a spaced apart configuration. The second and third blades are configured to angulate about respective second and third axes that are defined by the respective first and second retractor arms.
A rod reducer includes a shaft, a sleeve assembly defining a bore dimensioned to receive the shaft therethrough, a housing defining a bore dimensioned to receive the shaft, arm members operatively associated with the housing, and an anvil operatively coupled with the shaft. The sleeve assembly includes a locking tab. The housing includes a groove configured to selectively receive the locking tab of the sleeve assembly. The housing includes a locking ledge portion in registration with the groove. The anvil is transitionable between a proximal position, in which, the arm members are spaced apart, and a distal position, in which, the arm members are in an approximated position. The sleeve assembly is rotatable between an engaged state in which, the locking ledge portion inhibits relative axial displacement of the sleeve assembly with the housing, and a disengaged state in which, the sleeve assembly is axially movable relative to the housing.
A rod reducer assembly is provided and is selectively mountable to a pedicle screw assembly. The pedicle screw assembly includes a pedicle screw housing that defines a rod-receiving recess. The pedicle screw assembly includes an extension assembly that is coupled to the pedicle screw housing by a frangible member. The rod reducer is configured to reduce a spinal rod into the rod-receiving recess of the pedicle screw assembly. The rod reducer assembly may include a derotation sleeve configured to inhibit the frangible member from breaking while manipulating a spinal bone.
A61B 17/70 - Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/88 - Methods or means for implanting or extracting internal fixation devices
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
52.
Insertion instrument for expandable spinal implants
An insertion instrument for expandable spinal implants includes an elongate member, a shuttle, and a worm gear. The elongate member includes a handle portion of a proximal end and an end effector on a distal end, wherein the end effector is configured to be releasably engaged to an expandable spinal implant. The shuttle is slidably disposed within a cavity defined within the end effector and includes a wedged shaped distal end configured to engage an expandable spinal implant. The worm gear is rotatably disposed within the cavity defined in the end effector and is in mechanical communication with the shuttle, such that rotation of the worm gear effectuates movement of the shuttle. Distal movement of the shuttle effectuates articulation of an expandable spinal implant. A method of performing surgery is also disclosed.
A pedicle fixation system (10) may include a first fastener (12) and a second fastener (14). The first fastener (12) may include a first shank (40) extending along a first fastener axis (41) and a channel (52) extending along a skew axis (51). The skew axis (51) may be transverse to the first fastener axis (41) and the channel (52) may have a channel diameter perpendicular to the skew axis (51). The second fastener (14) may extend through the channel (52) and include a second shank (60) extending along a second fastener axis (63). At least a distal part of the second shank (60) may have a second fastener diameter perpendicular to the second fastener axis (63). The second fastener diameter may be smaller than the channel diameter.
A61B 17/70 - Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
A rod reducer assembly is provided. The rod reducer includes a pedicle screw housing defining a rod-receiving passage therethrough. A tab is removably coupled to the pedicle screw housing by a frangible member. An extension is secured to the tab. The extension and the tab are separable from the pedicle screw housing upon application of a threshold force to the frangible member.
A61B 17/70 - Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
A61B 17/88 - Methods or means for implanting or extracting internal fixation devices
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A spinal fixation device is provided. The spinal fixation device includes a body portion including a stud portion defining a first annular groove. An outer housing is positionable on the stud portion of the body portion. An inner housing defines a second annular groove and is positionable between the outer housing and the stud portion. A ring member is positionable within each of the first and second annular grooves of the respective stud portion and inner housing to lock the inner housing to the body portion and to fixedly couple the outer housing to the stud portion.
A compressor/distractor system for operating on a spine is disclosed. The system includes two rod reducers which each advance a spinal rod into the shoulder portion of a pedicle screw. Each rod reducer includes an inner member, an outer member, and a pair of gripping members. Each outer member receives and advances the spinal rod into the pedicle screw. The outer member also includes a through slot which receives the proximal end of each of the pair of gripping members which may limit the longitudinal translation of the outer member with respect to the inner member. The compressor/distractor system may include a compressor/distractor device which has a compressing, a distracting, and a neutral configuration. A method for using the minimally invasive rod reducers with the compressor/distractor system to secure at least two pedicle screws in desired positions on a spinal rod is also disclosed.
A surgical instrument includes a body, a securement arm, a clamp lock, and a tensioning assembly. The body defines a longitudinal axis and has proximal and distal portions. The distal portion defines a recess. The securement arm is coupled to the body and translatable along the body in a direction parallel to the longitudinal axis between first and second position. The clamp lock is pivotally coupled to the distal portion of the body. The clamp lock is pivotable between secured and unsecured configurations. The tensioning assembly translatable in a direction parallel to the longitudinal axis between proximal and distal position. The tensioning assembly configured to draw a flexible band to tension the flexible band about a bony element.
In some embodiments, the present disclosure relates to a system that includes an insertion tool and a drill guide. The insertion tool includes a body with a distal portion and a distal end. The body has a first engagement feature extending longitudinally along the distal portion and two arms extending longitudinally from the distal end of the body. The drill guide includes two bores and an open faced channel therebetween. The open faced channel includes a second engagement feature slidably engageable with the first engagement feature on the body of the insertion tool. The two bores are adapted for the disposal of a fastener driver tool therethrough.
A spinal implant configured for positioning within a space between adjacent vertebral bodies includes an upper end plate including an outer surface extending between first and second end surfaces and opposed side surfaces. The outer surface includes a first convex profile extending between the first and second end surfaces and a second convex profile extending between the opposed side surfaces. The first convex profile and the second convex profile have different curvatures. The spinal implant further includes a lower end plate and a core disposed between the upper and lower end plates and coupled thereto. A method of assembling a spinal implant and a method of performing spinal surgery are also disclosed.
A spinal fixation construct for aligning vertebral bodies includes a bone screw, a spinal rod, a flexible member, and a fixation member. The spinal rod is disposed within a saddle portion of a housing of the bone screw, and includes an elongated body having a first end and a second end. The spinal rod is formed from a first material having a first modulus of elasticity. The flexible member is coupled to the spinal rod, and includes an elongated body having a first end portion and a second end portion. The flexible member is formed from a second material having a second modulus of elasticity that is different from the first modulus of elasticity. The fixation member includes a threaded body portion and a head portion defining a hole therethrough. A portion of the flexible member extends through the hole of the head portion.
A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil. A rod reducer may be secured to the polyaxial pedicle screw to secure a spinal rod within the housing.
A surgical implant includes a first portion and a second portion. The first portion includes a body and connector assemblies. The body includes a posterior surface and defines a first bore defining an acute angle with respect to a first axis that is orthogonal to the posterior surface. The connector assemblies are disposed on opposing lateral sides of the body. Each connector assembly is selectively rotatable relative to the body. The second portion includes a base extending in a cephalad direction from the first portion, and an extension extending in the cephalad direction from the base. The base defines second bores configured to receive respective bone screws. The extension defines a third bore. The first bore of the body and the third bore of the extension define a second axis. The second bores are defined along a third axis orthogonal to the second axis.
A system for dilating tissue includes a retractor having a pair of retractor blades that are movable towards and away from each other to retract tissue of a patient. The retractor blades have longitudinal guide channels. A first pin is attachable to a first vertebra. The system also includes an interbody spacer insertion device that has a guide channel for slidably engaging the longitudinal channel guide and is releasably attachable to an interbody spacer. The interbody spacer insertion device is configured to guide the interbody spacer into a space between adjacent vertebrae. A method for using the system includes advancing the retractor blades towards first and second vertebrae. The first retractor blade is attached to the first vertebra using the first pin and the retractor blades are moved away from each other. The interbody spacer insertion device is translated towards the vertebrae to position the interbody spacer between the vertebrae.
An implant that can hold bone graft material, and receive support from adjacent tissues and structures. In one aspect, the implant has an attachment region to directly engage with adjacent tissues and structures. In another aspect, the implant is malleable and can be manipulated to conform to the adjacent tissues and structures.
A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalk define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.
A transverse connector includes a cross member connecting assembly, and first and second spinal rod connection members rotatably coupled to opposing end portions of the cross member connecting assembly. The cross member connecting assembly includes a first band slot defined therethrough and a threaded opening extending through an upper surface of the cross member connecting assembly and into the first band slot. The cross member connecting assembly includes a band set screw threadingly engaged with the threaded opening and movable relative to the first band slot.
The technology relates to generating a three-dimensional point cloud model of an anatomical structure. A computer accessible memory 210 may be operational to store a three- dimensional array of data elements describing multiple anatomical features of a subject, each of the data elements having associated therewith positional data and a separate parameter value. A processor 200 may be configured to identify any data elements in the three-dimensional array having an associated parameter value satisfying a predefined threshold value associated with at least one anatomical feature. The processor 200 may be further configured to generate a visually displayable three-dimensional point cloud model of at least one anatomical structure having a first plurality of points in the point cloud model which define an exterior perimeter of the at least one anatomical structure and a second plurality points in the point cloud model which define at least one feature interior of the exterior perimeter of the at least one anatomical structure.
A spinal plate bender includes an actuation assembly, a collet, and a head portion. The actuation assembly includes a housing, a lever pivotably coupled to the housing, a linkage pivotably coupled to the lever, and an actuation shaft operatively coupled with the linkage. The lever is transitionable between a neutral position and an actuated position, which imparts axial displacement to the actuation shaft. The collet includes a proximal section, a sleeve section extending distally from the proximal section, and a coupling section extending distally from the sleeve section. The head portion is configured to support a spinal plate. The head portion includes an anvil portion coupled to a distal end portion of the actuation shaft. The anvil portion is configured to engage a spinal plate to cause bending of a spinal plate supported in the head portion.
A spinal implant has proximal and distal regions, and includes upper and lower bodies. A proximal adjustment assembly is disposed between the upper and lower bodies in the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies in the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other, both concurrently and alternately, to change a vertical height of at least one of the proximal or distal regions of the spinal implant. A set screw is removably disposed within the proximal region of the spinal implant to lock the vertical height of the proximal and distal regions of the spinal implant.
Devices, systems and methods for minimally open orthopedic spine surgery are disclosed. A first flexible screw-based retractor is designed to be coupled to each pedicle screw inserted into adjacent vertebral bodies. A retractor system is provided in which a first retractor blade is mounted to one of the screws and a second movable retractor blade is moved away from the first blade, in a medial direction, to create a working channel through which the disc space may be accessed for passing instruments and implants. Light may be incorporated into the device to illuminate the surgical field. One or all of the retractor blades may be made of a sterilizable plastic or metal and be disposable or reusable.
A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalls define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.
A rod reducer includes a housing, an anvil, a locking anvil configured to engage a locking plug of a bone screw assembly, an arm assembly, a reducing screw extending through the housing and rotatably coupled with the anvil, and a locking screw extending through the housing and rotatably coupled with the locking anvil. The arm assembly includes an arm hingedly coupled to the housing, and first and second grasping members configured to engage the bone screw assembly. The first and second grasping members are hingedly coupled to the housing and extend through the anvil. Rotation of the reducing screw transitions the arm assembly between an open position, in which, distal portions of the arm and the first and second grasping members are radially expanded, and a closed position, in which, the distal portions of the arm and the first and second grasping members are radially contracted.
A spinal fixation device is provided including a modular head assembly and a bone screw. The modular had assembly includes a housing, an anvil, an insert, and a snap ring. The housing defines a proximal surface and an opposite, distal surface, and the proximal and distal surfaces define a throughbore therethrough. The anvil is configured to be slidably received within a portion of the throughbore. The insert defines a proximal surface and an opposite, distal surface, and the distal surface defines a first counterbore therein that terminates at a first annular surface. The first annular surface defines a second counterbore that terminates at a second annular surface. The snap ring is configured to be disposed within the first counterbore of the insert when in a first configuration, and within the second counterbore of the insert when in a second configuration.
A flexible implant system includes a flexible implant, an implant housing, and an implant set screw. The flexible implant is configured to loop around a portion of a bony element. The implant housing includes a housing body defining a rod passage configured to receive an rod. The housing body also defines an implant passage that receives a portion of the flexible implant. The implant set screw engages the flexible implant within the implant passage to fix the flexible implant to the implant housing.
A spinal implant has a proximal region and a distal region, and includes an upper body and a lower body each having inner surfaces disposed in opposed relation relative to each other. A proximal adjustment assembly is disposed between the upper and lower bodies at the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies at the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other to change a vertical height of at least one of the proximal region or the distal region of the spinal implant.
A method of distracting adjacent vertebral bodies includes inserting a first pin into a first vertebral body, inserting a second pin into a second vertebral body adjacent the first vertebral body, positioning a first retractor blade over the first pin, positioning a second retractor blade over the second pin, attaching a first arm of a frame to the first retractor blade and a second arm of the frame to the second retractor blade, displacing the second arm of the frame away from the first arm to distract the first and second vertebral bodies, inserting prongs of a lateral protector into respective channels defined in the first and second retractor blades, and retracting tissue by a transverse blade of the lateral protector.
A band clamp including a housing; a screw that extends through a top surface of the housing and into a cavity defined by the housing; a band opening located within the housing and configured and dimensioned to receive a band; an inserter opening located within the housing and configured and dimensioned to receive an inserter; and an anvil located within the cavity of the housing is disclosed. A band clamp assembly, an inserter, and an inserter assembly is also disclosed. A method of inserting a band clamp is also disclosed.
An occipital fixation assembly is provided. The occipital fixation assembly includes a first mounting plate configured for placement within a sinus cavity adjacent a rear portion of a skull of a patient. A threaded post extends from the first mounting plate. A coupling member includes an aperture configured to receive the threaded post therethrough. The coupling member includes an offset extension configured to support a surgical rod thereon. A fixation nut configured to threadably engage the threaded post of the first mounting plate is rotatable about the threaded post and translatable therealong. The fixation nut is rotatable with respect to the first mounting plate and the coupling member such that rotation of the fixation nut in a predetermined direction brings the first mounting plate and the coupling member toward one another and into secured engagement with the skull of a patient.
In one embodiment, a method using a computer system determines a length of a rod for use in spine correction surgery. With images of a patient, a segment of the spine requiring correction is identified along with first and second points (434, 436) at the ends of the segment. Then, a first size and a first position of a first circle (412) are determined based on the image such that a portion of the first circle is generally aligned with a curve of the segment. A second circle (702) with a different size and position is similarly determined based on the image. Both the first and second circles pass adjacent to or through the first point and the second point. A length of a portion of the second circle measured between the first and second points is then used to determine a rod length for a post-surgical spinal alignment.
An interbody at least one surface including a plurality of members that are independently configured and dimensioned to move from a first position to a second position is disclosed.
A spinal fixation device includes a housing defining a chamber and a longitudinal axis, and an end plate assembly operatively coupled with the housing. The end plate assembly includes a first end plate configured to engage a vertebral body and first and second support assemblies operatively coupled to the first end plate. The first support assembly is selectively movable between a first position in which the first end plate is spaced apart from the housing and a second position in which the first end plate is adjacent the housing. The second support assembly is transitionable between a first state in which the first end plate has a first angular orientation and a second state in which the first end plate has a second angular orientation.
In some embodiments, a spinal implant (10, 110, 210, 310, 400) is provided and includes a body portion defining a longitudinal axis. The body portion includes a distal end portion, a proximal end portion, opposed side surfaces that extend between the distal and proximal end portions, and top and bottom surfaces configured and adapted to engage vertebral bodies. The top and bottom surfaces have a surface roughness between 3-4 μm. A cavity extends through the top and bottom surfaces defining a surface area that is at least 25% of a surface area of the top surface or the bottom surface. First orifices (24, 124, 224, 324, 426a) are defined through the top surface and second orifices (34, 134, 234, 334, 426b) are defined through the bottom surface. The second orifices are connected to the first orifices by a plurality of channels.
A rod reducer includes a shaft, a sleeve assembly defining a bore dimensioned to receive the shaft therethrough, a housing defining a bore dimensioned to receive the shaft, arm members operatively associated with the housing, and an anvil operatively coupled with the shaft. The sleeve assembly includes a locking tab. The housing includes a groove configured to selectively receive the locking tab of the sleeve assembly. The housing includes a locking ledge portion in registration with the groove. The anvil is transitionable between a proximal position, in which, the arm members are spaced apart, and a distal position, in which, the arm members are in an approximated position. The sleeve assembly is rotatable between an engaged state in which, the locking ledge portion inhibits relative axial displacement of the sleeve assembly with the housing, and a disengaged state in which, the sleeve assembly is axially movable relative to the housing.
A spinal fixation device includes an outer housing and an end plate assembly coupled with the outer housing. The outer housing defines an aperture and a longitudinal axis. At least a portion of the end plate assembly is slidably received within the outer housing. The end plate assembly includes a first end plate configured to engage a vertebral body, wherein the end plate assembly is selectively movable between a first position in which the first end plate is spaced apart from the outer housing and a second position in which the first end plate is adjacent the outer housing. Further, the first end plate is selectively adjustable to an angular orientation of a plurality of angular orientations with respect to the longitudinal axis of the outer housing.
Provided is a novel rod reducing device including a screw jack mechanism that is moveably engaged with an elongated grasping fork assembly, the screw jack mechanism having an elongated threaded portion, the elongated threaded portion being connected at its most distal end to a rod contact member, which is positioned in sliding circumferential contact with each of the two opposing elongated grasping members and the most proximal end of the elongated threaded portion terminating in a controlling member, which can be activated in a measured and controlled manner. A method of using the device is also provided.
According to one embodiment of the disclosure, an implant (100, 300, 700, 900, 1100, 1300, 1500, 1710) includes a body having a surface with a flexible pattern (200, 400, 800, 1000, 1200, 1400, 1600, 1800A-D) defined by a plurality of material segments (202, 402, 1202, 1402) including a first material segment and a second material segment. The first material segment abuts the second material segment. Further, the first material segment includes a first non-linear shape extending between a first end and a second end while the second material segment includes a second non-linear shape extending between a first end and a second end. The two material segments are interconnected such that one of the first end and the second end of the first non-linear shape is interconnected with one of the first end and the second end of the second non-linear shape.
A system for mounting a retractor tube to a spine without a guidewire is disclosed. The system includes an awl, a first dilator configured to be advanced over the awl, a retractor tube configured to be advanced over the first dilator, wherein an outer surface of the retractor tube defines a plurality of channels, and a plurality of pins adapted to be received within the plurality of channels, wherein the plurality of pins secure the retractor tube to the at least one vertebral body of the spine. A method for selectively mounting a retractor tube to a spine without a guidewire is also disclosed.
An insertion instrument for expandable spinal implants includes an elongate member, a shuttle, and a worm gear. The elongate member includes a handle portion of a proximal end and an end effector on a distal end, wherein the end effector is configured to be releasably engaged to an expandable spinal implant. The shuttle is slidably disposed within a cavity defined within the end effector and includes a wedged shaped distal end configured to engage an expandable spinal implant. The worm gear is rotatably disposed within the cavity defined in the end effector and is in mechanical communication with the shuttle, such that rotation of the worm gear effectuates movement of the shuttle. Distal movement of the shuttle effectuates articulation of an expandable spinal implant. A method of performing surgery is also disclosed.
A band tensioner includes a shank, a head, and a tensioning mechanism disposed within the head. The shank is configured to secure the band tensioner to a first bony element and the head is secured to an end of the shank. The tensioning mechanism is configured to lengthen and shorten a flexible implant relative to the head of the band tensioner.
Orthopedic implants constructs include one or two rigid monolithic plates and a core that is integrally formed within an interior space within a rigid monolithic plate. An exemplary construct that includes two plates between which is a core that is interengaged with each plate, the two plates thereby forming a generally disc-like shaped construct with opposing tissue contacting surfaces. The constructs are suitable, for example for spinal interbody fusion and artificial disc applications.
Disclosed are systems and methods for rapid generation of simulations of a patient's spinal morphology that enable pre-operative viewing of a patient's condition and to assist surgeons in determining the best corrective procedure and with any of the selection, augmentation or manufacture of spinal devices based on the patient specific simulated condition. The simulation is generated by morphing a generic spine model with a three-dimensional curve representation of the patient's particular spinal morphology derived from existing images of the patient's condition. Other anatomical structures in the patient's skeletal system are likewise simulated by morphing a generic normal skeletal model, as applicable, particularly those skeletal entities that are connected directly or indirectly to the spinal column.
A spinal fixation device is provided. The spinal fixation device includes a body portion including a stud portion defining a first annular groove. An outer housing is positionable on the stud portion of the body portion. An inner housing defines a second annular groove and is positionable between the outer housing and the stud portion. A ring member is positionable within each of the first and second annular grooves of the respective stud portion and inner housing to lock the inner housing to the body portion and to fixedly couple the outer housing to the stud portion.
A surgical implant assembly includes a surgical implant, a bone plate, and fixation devices. The surgical implant includes a top surface, a bottom surface disposed in opposed relation relative to the top surface, first and second surfaces interconnecting the top and bottom surfaces, and a front surface. First ends of the first and second side surfaces define a back surface extending across a first end of the surgical implant, and the front surface extends across a second end of the surgical implant and interconnects second ends of the first and second side surfaces. At least one cavity is defined in the surgical implant. The bone plate includes an elongate body extending between first and second end portions. The elongate body is positionable adjacent the front surface of the surgical implant. The fixation devices are configured to secure the surgical implant or the bone plate to osseous tissue.
A screw insertion instrument includes a housing, a knob, a drive shaft, and a screw alignment post. The housing includes a proximal portion and a distal portion, and the proximal portion includes a proximal body portion defining a channel extending longitudinally therethrough along a longitudinal axis of the housing. The knob is coupled to the proximal portion of the housing and defines an aperture therethrough that is aligned with the longitudinal axis of the housing. The drive shaft extends through the aperture of the knob and the proximal portion of the housing. The screw alignment post is coupled to the distal portion of the housing and is aligned with the longitudinal axis of the housing.
A spinal implant has proximal and distal regions, and includes upper and lower bodies. A proximal adjustment assembly is disposed between the upper and lower bodies in the proximal region of the spinal implant and is adjustably coupled to the upper and lower bodies, and a distal adjustment assembly is disposed between the upper and lower bodies in the distal region of the spinal implant and is adjustably coupled to the upper and lower bodies. The proximal and distal adjustment assemblies are independently movable with respect to each other, both concurrently and alternately, to change a vertical height of at least one of the proximal or distal regions of the spinal implant. A set screw is removably disposed within the proximal region of the spinal implant to lock the vertical height of the proximal and distal regions of the spinal implant.
Disclosed are systems and methods for rapid generation of simulations of a patient's spinal morphology that enable pre-operative viewing of a patient's condition and to assist surgeons in determining the best corrective procedure and with any of the selection, augmentation or manufacture of spinal devices based on the patient specific simulated condition. The simulation is generated by morphing a generic spine model with a three-dimensional curve representation of the patient's particular spinal morphology derived from existing images of the patient's condition.
An apparatus and method for fusing cervical vertebrae is provided. The apparatus may include a plate configured to be affixed to at least two vertebrae, and at least two screws configured to affix the plate to an anterior surface of the at least two vertebrae, wherein when the plate is affixed to the at least two vertebrae, the plate is configured to be partially disposed in a disc space between the at least two vertebrae, and extend in an anterior direction beyond an anterior surface of the at least two vertebrae.
A method of manufacturing a surgical implant includes simultaneously forming a first component and a second component of the surgical implant. Formation of the first and second components includes depositing a first quantity of material to a building platform and fusing the first quantity of material to form a first layer of the first and second components. The method of manufacturing also includes depositing a second quantity of material over the first layer of the first and second components and fusing the second quantity of material to form a second layer of the first and second components. The surgical implant is fully assembled upon the completion of the formation of the first and second components.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B29C 64/141 - Processes of additive manufacturing using only solid materials
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
