Abstract: The present disclosure provides a surgical implant device, including: a solid surface; and a lattice structure disposed adjacent to the solid surface, wherein the lattice structure includes a first plurality of struts that define a first plurality of voids adjacent to the solid surface and a second plurality of struts that define a second plurality of voids remote from the solid surface. Each of the first plurality of struts has an average cross-sectional diameter that is smaller than an average cross-sectional diameter of each of the second plurality of struts. Each of the first plurality of voids has an average internal diameter that is smaller than an average internal diameter of each of the second plurality of voids. The surgical implant device also includes a needle-populated porous surface disposed adjacent to the solid surface opposite the lattice structure.

Abstract: A surgical implant device includes opposing first and second solid surfaces and a third solid surface connecting the first solid surface and the second solid surface. The third solid surface includes a hole penetrating through the first and second solid surfaces. The hole includes an outer surface with a first region and an inner surface. A surface roughness of the first region is greater than a surface roughness of the inner surface.

Abstract: A surgical implant device, including: an implant body; a porous layer disposed adjacent to the implant body, wherein the porous layer includes a lattice of intersecting struts; and a plurality of needle structures protruding from the porous layer opposite the implant body, wherein at least some of the plurality of needle structures traverse the porous layer and are anchored to the implant body. The plurality of needle structures that traverse the porous layer and are anchored to the implant body are coupled to one or more intersecting struts of the lattice. Optionally, some of the plurality of needle structures are spaced apart from the implant body and are anchored only to the porous layer. Preferably, one or more of the implant body, the porous layer, and the plurality of needle structures are formed by an additive manufacturing technique.

Abstract: The present disclosure provides a surgical implant device, including: a solid surface; and a lattice structure disposed adjacent to the solid surface, wherein the lattice structure includes a first plurality of struts that define a first plurality of voids adjacent to the solid surface and a second plurality of struts that define a second plurality of voids remote from the solid surface. Each of the first plurality of struts has an average cross-sectional diameter that is smaller than an average cross-sectional diameter of each of the second plurality of struts. Each of the first plurality of voids has an average internal diameter that is smaller than an average internal diameter of each of the second plurality of voids. The surgical implant device also includes a needle-populated porous surface disposed adjacent to the solid surface opposite the lattice structure.

Abstract: A surgical implant device, including: an implant body; a porous layer disposed adjacent to the implant body, wherein the porous layer includes a lattice of intersecting struts; and a plurality of needle structures protruding from the porous layer opposite the implant body, wherein at least some of the plurality of needle structures traverse the porous layer and are anchored to the implant body. The plurality of needle structures that traverse the porous layer and are anchored to the implant body are coupled to one or more intersecting struts of the lattice. Optionally, some of the plurality of needle structures are spaced apart from the implant body and are anchored only to the porous layer. Preferably, one or more of the implant body, the porous layer, and the plurality of needle structures are formed by an additive manufacturing technique.

Abstract: A surgical implant device, comprising: a body portion; and one or more surfaces comprising a plurality of protruding structures; wherein the body portion and the one or more surfaces comprising the plurality of protruding structures are integrally formed. The one or more surfaces comprising the plurality of protruding structures are formed by an additive manufacturing process. The plurality of protruding structures comprise a plurality of needles. Optionally, the surgical implant device comprises one of an anterior lumbar interbody fusion cage, a posterior lumbar interbody fusion cage, a transforaminal lumbar interbody fusion cage, an oblique lumbar interbody fusion cage, a cervical cage, and a bone screw.

Abstract: The present invention provides a bone screw or bone anchor, such as a threaded pedicle screw or the like, incorporating a porous surface for enhancing bony fixation, ingrowth, and purchase when implanted in bone. Preferably, this porous surface covers at least a portion of the threads of the bone screw or bone anchor. The porous surface is formed by a conventional or novel additive manufacturing process, such as three-dimensional (3D) printing or the like, optionally as well as a prior and/or subsequent machining process. The porous surface may include novel needle-like protrusions and/or lattice structures, and/or any other protruding/depressed features, whether regular or irregular.

Abstract: A surgical implant device, comprising: a body portion defining a plurality of ports; a plurality of bone screws disposed partially through the plurality of ports defined by the body portion; a locking plate disposed over a head portion of at least one of the plurality of bone screws and engaging a plurality of recesses manufactured into a side of the body portion; and a screw operable for compressing the locking plate against the side of the body portion. Optionally, the surgical implant device further comprising: one or more surfaces comprising a plurality of protruding structures; wherein the body portion and the one or more surfaces comprising the plurality of protruding structures are integrally formed. The one or more surfaces comprising the plurality of protruding structures are formed by an additive manufacturing process.

Abstract: In various exemplary embodiments, the present invention provides devices, implants, and methods for distracting and/or stabilizing a facet joint of the spine of a patient or other similar joint or bony structures, optionally including modifying the facet joint and implanting an implant in the facet joint so as to distract the foramen in order to reduce compression on nerve roots.

Abstract: The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented.

Abstract: The present disclosure provides a cannulated bone screw system including a screw with a threaded portion, a non-threaded portion, and a first plurality of teeth spaced apart from a screw head; and a washer with an interior portion with a second plurality of teeth and an opening and an outer portion with a plurality of spikes. The first plurality of teeth are on an inferior convex surface; wherein the second plurality of teeth are on a superior concave surface; and wherein the first plurality of teeth and the second plurality of teeth are operable to mate to prevent the screw from backing out of the washer while allowing the cannulated bone screw system to conform/pivot in order to accommodate different bone morphologies.

Abstract: The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented. Alternatively, the cervical plate locking mechanism of the present invention utilizes a locking plate having petal structures that are inwardly biased prior to insertion of the head portion of the locking screws via an externally-disposed c-ring or the like.

Abstract: The present invention relates to an alternatively monoaxial and polyaxial pedicle or other similar surgical screw that can be used in a polyaxial manner and then locked or otherwise secured at a desired angle or orientation, i.e. used in a monoaxial manner, prior to engaging a rod or other similar stabilization member with the pedicle or other similar surgical screw. In other words, the present invention provides a pedicle or other similar surgical screw that can be selectively used in either a monoaxial or polyaxial configuration, as is desirable in a particular application or at a particular point of a given surgical procedure.

Abstract: The present invention provides devices and methods for resurfacing a facet joint of a spine of a patient, including: a first portion that is selectively coupled to an opposed surface of a superior facet of the facet joint of the spine of the patient; and a second portion that is selectively coupled to an opposed surface of an inferior facet of the facet joint of the spine of the patient; wherein the first portion is allowed a predetermined degree of movement with respect to the second portion. These devices and methods find applicability to other anatomical joints as well.

Abstract: The present disclosure provides a cannulated bone screw system including a screw with a threaded portion, a non-threaded portion, and a first plurality of teeth spaced apart from a screw head; and a washer with an interior portion with a second plurality of teeth and an opening and an outer portion with a plurality of spikes. The first plurality of teeth are on an inferior convex surface; wherein the second plurality of teeth are on a superior concave surface; and wherein the first plurality of teeth and the second plurality of teeth are operable to mate to prevent the screw from backing out of the washer while allowing the cannulated bone screw system to conform/pivot in order to accommodate different bone morphologies.

Abstract: The present disclosure provides surgical systems and method for joint fixation device with a self-locking mechanism to provide stabilization and immobilization of a joint, such as a facet joint or the like. The present invention includes an elongated fixation mechanism that is placed through an opening in a joint and inserted into a retention mechanism. The retention mechanism is operable to provide a self-locking mechanism to the elongated fixation mechanism to provide fixation of the joint. In an exemplary embodiment, the present invention can be utilized by a surgeon through a minimally-invasive surgical procedure to provide facet joint fixation.

Abstract: The present disclosure provides systems and methods for retaining a plate, such as a cervical plate, to a substrate, such as bone, through a locking screw with upper asynchronous threads and lower cancellous threads. The present invention utilizes the locking screw with cancellous-type threads to draw the screw into the substrate. The screw is operable to retain a plate to the substrate and is configured to gall and lock to the plate through the upper threads which are out-of-phase with corresponding threads on the plate thereby preventing reverse threading or backing out of the screw.

Abstract: The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented. Alternatively, the cervical plate locking mechanism of the present invention utilizes a locking plate having petal structures that are inwardly biased prior to insertion of the head portion of the locking screws via an externally-disposed c-ring or the like.

Abstract: The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented.

Abstract: In a rod fixation system of the type used to treat various spinal conditions, the same fastener is used to lock both a polyaxial screw and a rod in position. A spinal correction device according to the invention, adapted for use with a rod and a polyaxial screw having a ball-shaped head and a threaded end, comprises a head-body and a cap. The head-body includes a lower internal cavity to receive the ball-shaped head of the screw, an upper bore to receive a fixation rod therethrough, and an upper end configured to receive the cap. The head-body and the cap are configured such that a first rotation of the cap locks the polyaxial screw in position, and a second rotation of the cap locks the rod in position. In the preferred embodiment, the head-body includes one or more gaps to facilitate flexion of the head-body as a rotational torque is placed on the cap. The gap or gaps may be horizontal, vertical or other angles relative to the axis of the entrapped rod.