3292results about "Spinal implants" patented technology

A personalized fixation system includes a surgical planning software tool configured to adjust relationships of relevant anatomy of a subject, at least one bone anchor, a plate having a shape that does not conform to a single plane, the plate configured to accept the at least one bone anchor, wherein the shape of the plate is at least partially determined by the surgical planning software tool, and wherein the plate includes at least one node having a hole configured to receive the at least one bone anchor, and a locking element configured to connect the at least one bone anchor to the plate, wherein the plate is manufactured using additive manufacturing.

Systems and methods for designing and implementing patient-specific surgical procedures and / or medical devices are disclosed. In some embodiments, a method includes receiving a patient data set of a patient. The patient data set is compared to a plurality of reference patient data sets, wherein each of the plurality of reference patient data sets is associated with a corresponding reference patient. A subset of the plurality of reference patient data sets is selected based, at least partly, on similarity to the patient data set and treatment outcome of the corresponding reference patient. Based on the selected subset, at least one surgical procedure or medical device design for treating the patient is generated.

Implants for the fusion or fixation of two bone segments are described. For example, the implants can be used for the fusion or fixation of the sacroiliac joint. The implants can have a matrix structure, have a rectilinear cross-sectional area, and have a curvature.

Disclosed herein is an orthopedic implant device comprising a porous structure, approximating the shape of a bone, and having modulus of elasticity similar to that of said bone. In one embodiment, further disclosed herein is a method of treating injuries or diseases affecting bones or muscles comprising providing an orthopedic implant device, wherein the orthopedic implant device comprising a porous structure, approximating the shape of a bone, and having a modulus of elasticity similar to that of bone, and using the orthopedic implant device to treat injuries and diseases affecting bones and muscles in a mammal. In another embodiment, disclosed herein is a method of manufacturing an orthopedic implant device using an additive manufacturing (AM) method.

Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion implant may include an upper endplate and a lower endplate configured to engage adjacent vertebrae, an actuation gear configured to adjust a height of the upper endplate, an interface collar configured to attach to an inserter instrument at multiple orientations for a desired surgical approach, and an expansion and orientation lock configured to lock the orientation of the interface collar and lock the height of the upper endplate. The expandable fusion device is attachable to the inserter instrument to secure the interface collar and disengage the lock from the actuation gear to permit expansion of the upper endplate.

The invention belongs to the technical field of medical implant prostheses, and particularly relates to a self-stability cervical interbody fusion cage which comprises a fixing plate and a fusion cage body. An adjusting rod is mounted in the fusion cage main body, a mounting groove is formed in the fusion cage main body, the adjusting rod and a sliding block are mounted in the mounting groove, a check block is mounted on the adjusting rod, and the check block drives the sliding block to move; an adjusting groove is formed in the fusion cage body, a connecting plate and a protruding tooth rod are installed in the adjusting groove, a contact plate is installed on the connecting plate, and a top block and a sliding block are connected through a pull rope; when the interbody fusion cage is implanted, the protruding toothed rod retracts, the surface of the protruding toothed rod is kept flat and smooth, implantation of the interbody fusion cage is facilitated, extrusion, friction and scratching are avoided, then after implantation, the protruding toothed rod stretches out, friction force between the interbody fusion cage and the vertebral body end plate is increased, and it is guaranteed that the fixing effect and stability of the interbody fusion cage are good; the treatment effect is improved.

The present disclosure provides for spinal implants configured for lateral insertion techniques deployable between a contracted position and an expanded position. The spinal implant may include a first endplate and a second endplate, each having a plurality of guide walls and inclined ramps. The spinal implant may further include a moving mechanism having first and second trolleys configured to act against the first and second plurality of ramps. The moving mechanism may further include a first set screw and a second set screw opposite the first set screw. The moving mechanism may be 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 the first set screw or second set screw along the rotation axis.

A spinal fusion system includes an intervertebral implant. The intervertebral implant has a fusion body configured to contact endplates of adjacent vertebrae and an instrument coupler. The instrument coupler is detachably couplable to an inserter instrument. When the inserter instrument extends through the instrument coupler and contacts the fusion body, the intervertebral implant is rigidly coupled to the inserter instrument. When the inserter instrument is spaced apart from the fusion body, the fusion body is rotatable relative to the inserter instrument while the instrument coupler holds the inserter instrument.

An expandable intervertebral implant may include a superior endplate configured to engage a superior vertebra, and an inferior endplate configured to engage an inferior vertebra, wherein the inferior endplate may be spaced apart from the superior endplate by a gap. The expandable intervertebral implant may further include a first slider moveable along a first direction to urge linear expansion of the gap, and one or more cams each coupled to the first slider. The one or more cams may be configured to urge angular expansion of the gap in response to at least one of: rotation of the one or more cams about a rotation axis, and motion of the one or more cams along the first direction.

A spinal implant assembly, a kit for forming same and a method for forming same. The spinal implant assembly comprises: a first endplate having a first non-planar inner surface; a second endplate having a second non-planar inner surface facing toward the first non-planar inner surface; at least one fastener attaching the first endplate and the second endplate to one another; and a layer including a piezoelectric material (piezoelectric layer), the piezoelectric layer between the first non-planar inner surface and the second non-planar inner surface and having a non-planar upper surface facing toward the first non-planar inner surface and a non-planar lower surface facing toward the second non-planar inner surface, wherein, at a front region of the spinal implant assembly, the first non-planar inner surface and the second non-planar inner surface define a vertically biased interface.

The invention relates to the technical field of medical instruments, and discloses an additive manufacturing bionic bone trabecula full-porous interbody fusion cage which is applied to spinal fusion surgery and is of a bionic bone trabecula full-porous structure made of medical metal through a laser melting or electron beam melting additive manufacturing technology. The interbody fusion cage comprises a front end face, a rear end face, a first side surface, a second side surface, an upper fusion face and a lower fusion face, the upper fusion face and the lower fusion face make direct contact with a vertebral body end plate of a spine, anti-skid teeth are arranged on the surfaces of the upper fusion face and the lower fusion face, and a bone grafting window penetrating through the upper fusion face and the lower fusion face is formed in the center of the interbody fusion cage. The interbody fusion cage has the structure and mechanical property similar to those of cancellous bone and trabecular bone of a human body, can improve the bone combination area and bone ingrowth space, has excellent initial and long-term stability, and can effectively reduce stress shielding so as to improve the bone fusion capability.

An intervertebral implant for implantation in an intervertebral space between vertebrae. The implant includes a body having a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear ends. The front and rear ends extend in a transverse direction and a central axis of the body extends from the rear end to the front end. The rear end defines a first fastener hole having a first central axis and a second fastener hole having a second central axis. The first and second central axes extend parallel to one another at an acute angle relative to the body central axis in the transverse direction.

The medical bone implant (1; 11, 14) for stabilizing a bone area is provided, comprising an implant body made of a thermoplastic composite material for fixing in or on a human or animal bone for stabilizing the bone area, and further comprising at least one sensor (2) for measuring one or more parameters of the healing process and / or the state of the implant (1; 11, 14). The at least one sensor (2) is a passive magnetoelastic sensor (2). Furthermore, a method for monitoring the state of the implant (1; 11, 14) is provided, in which the passive magnetoelastic sensor (2) is used for monitoring the state of the implant (1; 11, 14) during the manufacturing process of the implant (1; 11, 14) and / or during storage of the implant (1; 11, 14).

An orthopedic fixation device operable for securing bone parts comprising one or more blocking cams integrated into a structural support device such as an intervertebral spacer or a fixation plate. The blocking cam is irremovable from the structural support device without destruction of the blocking cam or the structural support device or both. In preferred embodiments, the blocking cam comprises a central body with one or more tabs extending radially from the central body. The blocking cam is rotatable between a locked mode wherein one of the tabs obstructs removal of a bone anchor from a fixator port of the structural support device and an unlocked mode wherein the bone anchor is unobstructed from removal from a fixator port.

An implant assembly for stabilizing a joint between a superior vertebra and an inferior vertebra may include a bone plate and an interbody spacer. The bone plate may include an anterior member having at least one superior fastener aperture and at least one inferior fastener aperture formed therethrough. The bone plate may also include a first arm extending from a first end of the anterior member, and a second arm extending from a second end of the anterior member, opposite the first arm, forming a cavity therebetween. The interbody spacer may be configured for placement within the cavity of the bone plate. At least a portion of the bone plate may be formed via at least one subtractive manufacturing process, and at least a portion of the interbody spacer may be formed via at least one additive manufacturing process.

An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical / mini open approaches and the percutaneous, “ultra-MIS” techniques.

An implant assembly for stabilizing a joint between a superior vertebra and an inferior vertebra may include a bone plate and an interbody spacer. The bone plate may include an anterior member having at least one superior fastener aperture and at least one inferior fastener aperture formed therethrough. The bone plate may also include a first arm extending from a first end of the anterior member, and a second arm extending from a second end of the anterior member, opposite the first arm, forming a cavity therebetween. The interbody spacer may be configured for placement within the cavity of the bone plate. At least a portion of the bone plate may be formed via at least one subtractive manufacturing process, and at least a portion of the interbody spacer may be formed via at least one additive manufacturing process.

The invention discloses a 3D printing metamaterial piezoelectric type interbody fusion cage, and relates to the technical field of interbody fusion cages, the 3D printing metamaterial piezoelectric type interbody fusion cage comprises vertebra skeletons and a material piece, the material piece is arranged between the vertebra skeletons, a plurality of holes are formed in the surface of one side of the material piece at equal intervals, the holes are of a three-dimensional porous structure, the holes comprise Gyandroid, SchwarzP and Diamond structures, and the Gyandroid, SchwarzP and Diamond structures are arranged in the material piece. The Gyandroid structure, the SchwarzP structure and the Diamond structure are all extremely small curved surface structures; the device has a unique three-dimensional porous structure, so that stress is uniformly distributed in the material, material fatigue or damage caused by local stress concentration is avoided, the structural stability and reliability of the fusion cage in a long-term complex mechanical environment are ensured, a crystal structure in the piezoelectric material is deformed, and the fusion cage has a good mechanical property. The positive and negative charge centers are relatively displaced, so that a potential difference is generated at the two ends of the material, electric signals are formed, the electric signals can interact with surrounding bone tissue cells, and efficient function exertion in the spine repair and fusion process is achieved.

Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion implant may include an upper endplate and a lower endplate configured to engage adjacent vertebrae, an actuation gear configured to adjust a height of the upper endplate, an interface collar configured to attach to an inserter instrument at multiple orientations for a desired surgical approach, and an expansion and orientation lock configured to lock the orientation of the interface collar and lock the height of the upper endplate. The expandable fusion device is attachable to the inserter instrument to secure the interface collar and disengage the lock from the actuation gear to permit expansion of the upper endplate.

A device for performing intervertebral body fusion between at a vertebral joint, and associated systems and methods for manufacturing the device are disclosed herein. In some embodiments, the device includes an expandable main body configured to be locked in a desired configuration between a superior and an inferior vertebrae at the vertebral joint to facilitate the intervertebral body fusion at the vertebral joint. A first endplate is connected to the main body. The first endplate can include a superior surface having one or more patient-specific features configured to engage and mate with an inferior surface of the superior vertebra. A second endplate is connected to the main body. The second endplate can include an inferior surface having one or more patient-specific features configured to engage and mate with a superior surface of the inferior vertebra.

Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion implant may include an upper endplate and a lower endplate configured to engage adjacent vertebrae, an expansion gear configured to adjust a height of the upper endplate, a locking collar configured to attach to an inserter instrument at multiple orientations for a desired surgical approach, and an actuation ram configured to lock, unlock, or change insertion orientation of the locking collar. The expandable fusion device is attachable to the inserter instrument to reorient the locking collar and expand the upper endplate.

Various embodiments of bone ties, bone tie inserters, and methods for treating the spine are provided. The methods can include wrapping the bone tie around transverse processes of adjacent vertebrae to correct coronal plane deformity. The methods can include wrapping the bone tie around the spinous process of one vertebra and around the transverse process of a second adjacent vertebra to achieve rotational correction. The methods can include wrapping the bone tie around the lamina of adjacent vertebrae to achieve sagittal correction. The methods can include applying tension to the bone tie to set the sagittal correction. The methods can include passing the bone tie through a lumen in a vertebral body or a pedicle of the inferior vertebra and the lamina or articular process of the superior vertebra.

Methods are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. In one embodiment, a defect creation assembly is advanced from a posterior approach into the SI joint and configured to create pilot SI joint opening; portions of which being disposed in the sacrum and ilium bone structures. After the pilot SI joint opening is created, a prosthesis is press-fit into the pilot SI joint opening, wherein the pilot SI joint opening transitions to a larger post-prosthesis insertion SI joint opening and the prosthesis is securely engaged to the sacrum and ilium bone structures.

An implant includes a plate having a plurality of fastener holes, the plurality of fastener holes being configured to receive a plurality of fasteners, respectively; a spacer coupled to the plate and configured to be inserted into a treatment region; and a fastener lock movably coupled to the plate and configured to lock the plurality of fasteners.

The invention discloses a spine minimally invasive intervertebral fusion cage and a rigid fixing device thereof, and belongs to the technical field of medical implantation instruments.The spine minimally invasive intervertebral fusion cage comprises a fusion cage body implanted between an upper lumbar vertebra body and a lower lumbar vertebra body, and the two sides of the center of the fusion cage body are each provided with a height adjusting assembly in a sliding mode; jacking springs are installed between the two height adjusting assemblies and the bottom cover plate, and spring pins used for fixing and releasing the height adjusting assemblies are inserted between the fusion cage body and the two height adjusting assemblies. And an upper top plate is fixedly mounted at the tops of the two height adjusting assemblies. By designing the fusion cage capable of automatically adjusting the height, when the fusion cage is used, the lifting seat and the upper top plate can be driven to abut against the lumbar vertebra body above by utilizing the bounce of the jacking spring, and after the fusion cage is adjusted in place, the lifting seat and the upper top plate can abut against the corresponding clamping teeth through the outer flanging sides of the two spring steel sheets, so that the supporting height of the lifting seat is fixed.

The invention provides an interbody fusion prosthesis and an interbody fusion prosthesis component, the interbody fusion prosthesis comprises an interbody fusion main body, the interbody fusion main body is provided with a bone grafting cavity, and the bone grafting cavity penetrates through the surface of the interbody fusion main body to form a first opening in the interbody fusion main body; and the first end plate is movably arranged at the first opening, and the first end plate is provided with a first avoiding position for avoiding the first opening and a first shielding position for covering the first opening. According to the technical scheme, the problem that in the related technology, the bone filling material in the bone grafting cavity has the falling risk is effectively solved.

Orthopedic implants for generating fusion between two bones are disclosed. Notably, the implants do not require supplemental fixation. Disclosed wedge implants may include an interlocking, e.g. dovetail feature. Screw-type implants are disclosed as well. Various surface modifications and structural features are disclosed to promote bone growth and fusion. Related kits and methods are also disclosed.

An apparatus includes a first and second engaging member to engage a first and second portion of a body toward an upper and lower portion of a back, and a plurality of assemblies connecting the first and second engaging members to maintain a distance between bones of a body portion comprising an area of the back, wherein the body portion resides between the first and second portions, and wherein each assembly comprises a plurality of rods coupling the first engaging member and the second engaging member, and a coupling tube with a first rod of the plurality of rods secured to a proximal end and a second rod of the plurality of rods secured to a distal end, wherein rotation of the coupling tube adjusts a gap between the first and second rods in the coupling tube to control the distance between the bones of the body portion.

Systems and methods of providing an expandable and conforming interbody implant are described. According to some implementations, an interbody implant includes a first surface configured to be disposed adjacent to a first bony endplate, and a second surface configured to be disposed adjacent to a second body endplate, with a height of the interbody implant extending between the first surface and the second surface. According to some implementations, the interbody implant is configured to be selectively disposed in an insertion configuration and a deployed configuration. In some cases, the height of the interbody implant is greater in the deployed configuration than in the insertion configuration. Moreover, in some cases, the first surface is configured to conform to a topology of the first bony endplate, and the second surface is configured to conform to a topology of the second bony endplate.

The invention relates to an interbody fusion device. The device comprises a supporting assembly, a driving piece and two sets of opening mechanisms. The supporting assembly comprises two supporting pieces arranged in the intervertebral height direction at intervals, and each supporting piece is provided with a first supporting end and a second supporting end. The driving piece is arranged between the two supporting pieces; the distraction mechanism comprises two distraction assemblies in transmission connection with the driving part, the two ends of the two distraction assemblies are rotationally connected with the two first supporting ends correspondingly, and the two ends of the other two distraction assemblies are rotationally connected with the two second supporting ends correspondingly; when the driving piece is operated, the distraction assemblies are distraction in the intervertebral height direction. The two groups of distraction assemblies connected with the first supporting end and the corresponding part of the transmission piece form a triangular structure, the two groups of distraction assemblies connected with the second supporting end and the corresponding part of the transmission piece form a triangular structure, and the two ends of the two supporting pieces are supported. And the two ends of the two supporting pieces can be stably supported.