39 results about "Bone fusion" patented technology

A sacroiliac (SI) joint implant assembly addresses SI joint dysfunction and degenerative sacroiliitis. The assembly includes a first implant body, a second implant body, and a piezoelectric layer positioned between them. The piezoelectric layer generates electrical charges when subjected to mechanical stress, stimulating bone growth and enhancing stability of the SI joint after surgery. The implant bodies may feature non-planar surfaces to distribute compressive and shear forces unevenly across the piezoelectric layer. The assembly can be secured using fasteners such as screws, pins, or brackets, and may include porous or fenestrated bodies made from materials like titanium or polymers. Some implant assemblies are designed for minimally invasive surgical procedures, with configurations that allow for precise placement using guide wires and imaging techniques. The assembly aims to stabilize the SI joint and promote bone fusion, leveraging the piezoelectric effect to improve the overall efficacy of the fusion procedure.

A drill-less method of stabilizing a sacroiliac joint using a multimodal abrading device to create a rich environment for bony fusion. The unique decortication instrument includes an integral slap hammer assembly joined with a rasp-box osteotome tooling head to simultaneously remove cartilage from the joint while preparing the sacrum and ilium down to bleeding bone. Subsequent to joint preparation, an implant with a large bone graft window may be implanted into the prepared SI joint through a specially designed access cannula.

A biomimetic intervertebral fusion device with a piezoelectric multifunctional coating belongs to the field of implantable medical devices. It includes an upper piezoelectric multifunctional coating, a fusion device body, and a lower piezoelectric multifunctional coating. A bone graft window is located in the middle of the biomimetic intervertebral fusion device. The piezoelectric multifunctional coating is made of electrospun piezoelectric PVDF / HA fibers, which are conformally adhered to the upper and lower surfaces of the fusion device body through a polydopamine adhesive layer. The upper and lower surfaces of the fusion device body have a biomimetic curved surface configuration to match the morphology of the vertebral endplates, increasing the contact area and reducing stress concentration at the fusion interface. While maintaining an elastic modulus similar to natural bone and good radiation permeability, this fusion device, after implantation, can create a microenvironment conducive to cell adhesion and proliferation. Under the influence of cell traction, ultrasonic stimulation, and the physiological load of the human lumbar spine, it generates electrical stimulation signals, promoting bone fusion, improving the stability of the fusion interface, and reducing the risk of postoperative loosening and subsidence of the fusion device.

A method and system for performing bone fusion and / or securing one or more bones, such as adjacent vertebra, are disclosed. The screws include a threaded tip connected to a main shaft and a threaded outer sleeve that rotates relative to the outer shaft until locked down. Independent rotation of the threaded outer sleeve relative to the threaded distal tip allows compression or distraction to modify the gap between the vertebral bodies. The screws are passed from the inferior to superior vertebra or superior to inferior, for example, through a trans-pedicular route to avoid neurological compromise. At the same time, the path of screw insertion is oriented to reach superior or inferior vertebra. An intervertebral cage of the system is configured for lateral expansion from a nearly straight configuration to form a large footprint in the disc space. The screws and cage may be combined for improved fixation with minimal invasiveness.

Systems, methods, and devices for bony fusion are disclosed. A threaded cannulated implant may be inserted into a target space, such as in the sacroiliac joint. The implant may have a distal section, a proximal section, and a central section between the distal section and the proximal section. The distal section may comprise cutting threads and flutes for self-drilling the implant into bone. The proximal section may be configured to couple to an insertion instrument for the implant. The central section may have a lattice structure through which bone graft may flow to promote bone ingrowth. A solid core region may be located inwards from the lattice structure. The central section may also have openings through the core region to connect the lattice structure to the cannula.

Described herein are various implementations of systems and methods for treating back pain (e.g., chronic low back pain) caused by different (e.g., independent) sources of pain, such as pain originating or stemming from intervertebral discs, from vertebral endplates, and / or from intraosseous locations within one or more vertebral bodies. For examples, methods for treating back pain (e.g., chronic low back pain) may involve both vertebral fusion (e.g., arthrodesis or spondylodesis to fuse adjacent vertebrae) and neuromodulation (for example, ablation of nerves within or surrounding one or more of the adjacent vertebrae). The neuromodulation may facilitate treatment of pain that is generated by insertion of fusion hardware.

A bone fusion device for insertion between bones that are to be fused together, such as, for example, the vertebrae of a spinal column. The bone fusion device comprises at least one extendable tab and one or more tab extension assemblies. Each tab extension assembly is able to be adjusted in order to individually control the extension or contraction of a side of the tab thereby enabling adjustment of the height and / or angle of the tab with respect to the body of the bone fusion device. Each tab extension assembly is able to be individually adjusted such that the side controlled by each assembly is raised or lowered until the desired tab angle is achieved. The tab is advantageously positioned and angled to correspond to the vertebrae to help brace the device until the bone has fused.

The utility model relates to the technical field of interbody fusion cages, in particular to a 3D (three-dimensional) printing fusion cage capable of grafting bones to induce bone growth, which comprises a fusion cage main body, the longitudinal channel penetrates through the fusion cage main body; the transverse channel penetrates through the fusion cage main body and is communicated with the longitudinal channel; the longitudinal channels and the transverse channels are filled with the porous structures; the fusion cage body and the porous structure are made of titanium alloy. The longitudinal channel and the transverse channel are perpendicular to each other, the longitudinal channel and the transverse channel are communicated to form the inner cavity of the fusion cage body, and porous structures made of titanium alloy materials are arranged in the longitudinal channel and the transverse channel, so that crawling and ingrowth of bone cells are facilitated, the long-term stability of the fusion cage body can be improved, and the bone fusion effect is better. And the fusion cage main body made of the titanium alloy material can better induce bone growth. By means of the structure, the bone fusion capacity of the fusion cage body is better than that of a PEEK fusion cage.

The invention relates to an interbody fusion cage and a preparation method thereof, and relates to the field of orthopedic implantation, the interbody fusion cage comprises a vertically placed cylindrical fusion cage main body and a pore structure fixedly connected in an inner hole of the fusion cage main body, and the pore structure is in a lattice net shape. The interbody fusion cage provided by the invention has a bone induction function, so that a good bone fusion effect can be achieved without bone grafting or with a small amount of bone grafting.

Compression / reduction drivers are provided for performing surgical methods. Exemplary surgical methods that may be performed using the compression / reduction drivers described herein include, but are not limited to, arthrodesis procedures (i.e., bone fusion procedures), fracture fixation procedures, etc. The compression / reduction drivers are configured to simultaneously and independently apply a force against a bone segment and drive a fixation device into the bone segment.

An intervertebral bone fusion implantable device configured with flexible structural elements on its top and bottom surfaces for controlled dampening of the compressive force exerted on the device by two vertebrae and for the maximization of the contact surface between the device and the uneven endplates of the vertebrae.

The utility model discloses a cervical vertebra anterior approach interbody 3D printing porous metal integrated fusion device which comprises a fixator and a cervical vertebra interbody fusion cage, the inner side of the fixator is attached to an axis body and connected with the cervical vertebra body through a fixing insertion piece, and the cervical vertebra interbody fusion cage is connected with the inner side of the fixator. In the anterior cervical intervertebral disc resection fusion internal fixation, integration of bone fusion and internal fixation is achieved, so that the success rate of vertebral fusion is increased, the surgical bleeding amount and damage to muscular tissue are reduced, the surgical time is shortened, and a cervical vertebra complex can be safely and effectively fixed and fused.

A sacroiliac fusion implant device assembly has an implant body and a pair of bone fasteners. The implant body has a distal end and a proximal end with a longitudinal axis extending between a center of the distal end and a center of the proximal end. The distal end has cutting edges configured to cut tissue as the implant is pressed into a joint between a sacrum and an ilium. The proximal end has two bone fastener receiving apertures, each configured to receive a bone fastener and the implant body has a pair of sidewalls connecting the distal and proximal ends. The pair of bone fasteners can be a pair of threaded fasteners, or a pair of spike fasteners or a combination of one threaded fastener and one spike fastener.

A 3D printed degradable chest rib implant comprises a main body and a fixing port arranged on the main body, wherein the curvature of the main body is consistent with the curvature of a rib defect; the main body has a multi-layer structure, the inner layer is a mechanical support-bone fusion structure to provide initial strength required for maintaining the shape of the thoracic structure and respiratory expansion and space for growth of new bone tissue, and the outer layer is a porous structure to facilitate the growth of surrounding soft tissue and later biological fusion fixation; the fixing port on the main body is installed and fixed with a corresponding chest rib combination site; through the regulation of the degradable material components and macro-micro structure, the function of the degradable chest rib implant is programmed to realize the dynamic matching and transformation of mechanical stability and tissue regeneration, with the degradation of the degradable chest rib implant material, the autologous tissue gradually grows into and completely replaces the degradable chest rib implant; the present application can adapt to the repair requirements of congenital chest rib defects in children.

The utility model discloses a fusion cage for lumbar posterior fusion, which relates to the technical field of livestock breeding equipment and is technically characterized by comprising a fusion cage main body, and the fusion cage main body is of an upper arc-shaped double-arch structure and a lower arc-shaped double-arch structure. The fusion cage body is provided with a front end, a rear end, an upper surface, a lower surface, a left side face and a right side face, the front end of the fusion cage body is of a wedge-shaped structure, side holes are formed in the left side face and the right side face of the fusion cage body respectively, and textured tooth-shaped structures are arranged on the upper surface and the lower surface of the fusion cage. The upper arc and the lower arc of the lumbar fusion cage body are attached to a lumbar end plate, the front end ellipse facilitates oblique implantation, and the lumbar fusion cage is low in left and high in right and can rotate and stably support. The surface tooth-shaped textures increase friction, and the right-side forward-to-left reverse structure enhances stability. Biocompatible PEEK is adopted, and a developing needle is arranged to assist in monitoring. The minimally invasive concept is adopted, single-side small incision oblique planting rotation is adopted, injuries are reduced, the intervertebral height and spine stability are maintained, bone fusion is promoted, the operation effect is good, trauma is small, recovery is fast, and the clinical application potential is large.

The utility model provides a full-porous spine fusion cage with an extremely-small curved surface structure, and belongs to the technical field of medical instruments. The utility model comprises an extremely small curved surface porous structure which is a three-period spiral curved surface; the bone grafting windows are arranged on the pair of cambered surfaces of the extremely-small-curved-surface full-porous structure and are used in cooperation with bone grafting; and the instrument clamping area is arranged in the middle of the bottom surface of the extremely-small-curved-surface porous structure, is communicated with the bone grafting window and is used for clamping the spinal fusion cage by an instrument. According to the utility model, an extremely small curved surface porous structure formed by a three-period spiral curved surface is adopted, the comprehensive mechanical property is excellent, and the static compression strength and the fatigue strength are improved by more than 50%; the matching degree of the elasticity modulus and the human skeleton is high, the stress load is uniformly distributed, the mechanical reliability is high, and the anti-fatigue capability is strong; no compact solid part exists, so that the contact area with bones and the bone tissue ingrowth space are increased; blood is rapidly sucked into the pore channel through the capillary effect, bone fusion and vascularization are facilitated, and bone conduction, bone fusion and bone ingrowth performance is outstanding.

The application discloses a gradient biomimetic PEEK-HA-Col I composite implant and a preparation method and application thereof, relates to the technical field of medical biomaterials, and has the following scheme: a composite implant composed of a load-bearing inner layer, a bioactive intermediate layer and a biomimetic bone matrix layer is constructed; the load-bearing inner layer contains a PEEK matrix, the intermediate layer contains PDA modified interfaces and HA induced and deposited by the interfaces, and the outer layer contains cross-linked modified collagen type I, and a bioactive gradient distribution is formed along the thickness direction; the preparation method and the application of the composite implant in bone repair are simultaneously provided. The application improves the interface bioactivity and the bone integration capability on the basis of maintaining the PEEK load-bearing support, improves the interface structure stability and the bioactive spatial distribution, improves the surface hydrophilicity and the interface microenvironment, is favorable for promoting early osteogenesis and bone defect repair, improves bone fusion and application adaptability in a load-bearing bone implantation scene, and simultaneously considers the synergistic matching of the load-bearing demand and the biological demand of the bone tissue interface.

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

The present disclosure includes implant systems, devices, implants, guides, instruments and methods of use. The insertion guide including a base member having a first opening with a first trajectory and a second opening with a second trajectory, a connecting member having a first end and a second end, wherein the first end is coupled to the base member and a locking block coupled to the second end of the connecting member. The locking block has a first guide hole and a second guide hole. The implant including a body including a first hole at a first end of the body, a second hole at a second end of the body, and a locking opening positioned between the first hole and the second hole. Methods of using the implant systems are also disclosed.

Active compression devices, methods of assembly and methods of use are disclosed. A bone fixation device may include a first member, a second member shaped to engage the first member, and at least one deformable member. A bone fusion device including a female member with a proximal and distal end, a male member with a proximal and distal end, and at least one elastic element positioned between the female member and the male member. A bone plating device including a first member, a second member shaped to engage the first member, and at least one deformable member positioned between the first member and the second member. Methods of assembling and using the bone fixation devices, bone fusion devices, and bone plating devices are also disclosed.

A sterile staple implant system is provided for use during a surgery. The staple implant system comprises a group of complementary surgery-specific instruments that are packaged in a sterile state. An instrument tray is configured to preserve the instruments in the sterile state until the staple implant system is opened during the surgery. The instrument tray is configured to provide the surgeon with easy access to the instruments during the surgery. The staple implant system comprises at least a staple inserter and a surgical staple suitable for being implanted in parallel holes drilled across a bone fusion or fixation site of a patient. The surgical staple preferably is loaded in a relaxed configuration into the staple inserter. A staple retention clip retains the surgical staple in the staple inserter until the staple is distracted during the surgery.

The invention relates to the technical field of implant sensor monitoring, in particular to an orthopedic implant microenvironment intelligent monitoring and regulation system which comprises a biological signal sensing module, a microenvironment dynamic analysis module, an implant state evaluation module, a directional treatment decision module and an osseointegration regulation module. In the invention, the piezoelectric micro-strain sensor array is used for collecting the stress change data of the bone screw interface in real time and extracting the frequency characteristics to construct the stress distribution diagram, so that the early recognition capability of the bone resorption risk is remarkably enhanced, and the microenvironment deterioration trend is accurately inverted in combination with the stress diagram, the local pH value and the inflammatory factor concentration; the stability evaluation precision of the bone fusion interface is improved, the aging sign of an interface material is analyzed through a micro displacement vector, early warning grading of mechanical instability is achieved, targeted drug release coordinates are generated on the basis of superposition of an instability area and inflammation distribution, the drug release pertinence is improved, and the stent deformation and electrodeposition process is synchronously regulated and controlled. And the stress regulation and the bone regeneration process are dynamically coupled.

A sterile staple implant system is provided for use during a surgery. The staple implant system comprises a group of complementary surgery-specific instruments that are packaged in a sterile state. An instrument tray is configured to preserve the instruments in the sterile state until the staple implant system is opened during the surgery. The instrument tray is configured to provide the surgeon with easy access to the instruments during the surgery. The staple implant system comprises at least a staple inserter and a surgical staple suitable for being implanted in parallel holes drilled across a bone fusion or fixation site of a patient. The surgical staple preferably is loaded in a relaxed configuration into the staple inserter. A staple retention clip retains the surgical staple in the staple inserter until the staple is distracted during the surgery.

Implant systems in some embodiments such as midline incision implant systems may generally include an insertion guide assembly and a plate, which define fixation trajectories. In other embodiments such as a percutaneous implant system may generally include a first a plate, an insertion guide, and a separate second insertion guide, which define fixation trajectories. Surgical methods include use of the implant systems with the plates, and use of plates alone, for installing bone fusion systems.

The invention relates to the technical field of image analysis, and discloses a multi-modal image fusion cylindrical skeleton repair detection method and system, and the method comprises the steps: collecting the multi-modal image data of a cylindrical skeleton, recognizing the bone trabecula structure feature points of each modal in the multi-modal image data, carrying out the modal space registration of the multi-modal image data, and carrying out the recognition of the feature points of the bone trabecula structure. A spatial registration image is obtained; using the spatial registration image to identify a multi-dimensional cylindrical skeleton feature of the cylindrical skeleton; performing feature level fusion on the multi-dimensional cylindrical skeleton features to obtain a fusion feature map of the cylindrical skeleton, and constructing a skeleton three-dimensional model of the cylindrical skeleton by using the fusion feature map; and utilizing the three-dimensional skeleton model to identify the callus volume and the bone cortex continuous state of a repair area corresponding to the cylindrical skeleton, analyzing the skeleton integrity and the adjacent bone fusion degree of the repair area, and constructing a repair detection report of the cylindrical skeleton. According to the invention, the precision of cylindrical skeleton repair detection can be improved.

Systems, apparatuses and methods for bone fusion are disclosed. In particular, a fixation screw assembly is provided that comprises a bone engagement portion including a shaft and a head member. The assembly also includes a flexible washer member that can be operably attached and secured around the head member of the bone engagement portion. The washer member is polyaxial relative to the bone engagement portion, such that it can assume a variety of angles. The washer member can help prevent back out of the bone engagement portion when the bone engagement portion is implanted into a bone member. The design of the fixation screw assembly can be used in different fusion procedures, including fusion of the sacroiliac joint.

A sacroiliac fusion implant device assembly has an implant body with a sliding block and a pair of movable bone spikes. The distal end has a tapered end with an opening configured to receive a guide pin during insertion into a joint between a sacrum and an ilium, and the proximal end has a cannulated threaded post configured to receive a guide pin and to move a sliding block. The sliding block is movable from a retracted unlocked position and to a deployed locked position when moved toward the distal end as the threaded post is rotated clockwise. The bone spikes are movable from a retracted position in the implant body to an exposed deployed locked position by moving the sliding block which presses the spikes up and out of the retracted position extending the bone spikes into bone in the sacroiliac joint.

A sacroiliac fusion implant device assembly has an implant body and a pair of bone fasteners. The implant body has a distal end and a proximal end with a longitudinal axis extending between a center of the distal end and a center of the proximal end. The distal end has cutting edges configured to cut tissue as the implant is pressed into a joint between a sacrum and an ilium. The proximal end has two bone fastener receiving apertures, each configured to receive a bone fastener and the implant body has a pair of sidewalls connecting the distal and proximal ends. The pair of bone fasteners can be a pair of threaded fasteners, or a pair of spike fasteners or a combination of one threaded fastener and one spike fastener.

The present invention relates to uses of a combination therapy of bone morphogenetic protein-2 and denosumab in spinal fusion surgery. When bone morphogenetic protein-2 and denosumab are used in combination during spinal fusion surgery as in the present invention, side effects frequently occurring due to spinal fusion surgery, such as osteolysis, inflammation, wound dehiscence, and bleeding, can be effectively prevented and treated.