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573 results about "Cortical bone" patented technology
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Cortical bone, synonymous with compact bone, is one of the two types of osseous tissue that form bones. Cortical bone facilitates bone's main functions: to support the whole body, protect organs, provide levers for movement, and store and release chemical elements, mainly calcium. As its name implies, cortical bone forms the cortex, or outer shell, of most bones. Again, as its name implies, compact bone is much denser than cancellous bone, which is the other type of osseous tissue. Furthermore, it is harder, stronger and stiffer than cancellous bone. Cortical bone contributes about 80% of the weight of a human skeleton. The primary anatomical and functional unit of cortical bone is the osteon.
Method and apparatus for attaching connective tissues to bone using a knotless suture anchoring device
An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone, which permit a suture attachment that lies entirely beneath the cortical bone surface. Advantageously, the suturing material between the soft tissue and the bone anchor is secured without the need for tying a knot. The suture attachment to the bone anchor involves the looping of a length of suture around a pulley within the bone anchor, tightening the suture and attached soft tissue, and compressing the suture against the bone anchor. The bone anchor may be a tubular body having a lumen with a locking plug that compresses the suture therein. The pulley may be a pin located near a distal end of the tubular body around which the length of suture is looped. Alternatively, a pulley may be a bridge portion of the tubular body between two spaced apertures in the wall of the body. The locking plug may include a shaft and an enlarged head that interferes with the tubular body to provide a positive stop. An actuation rod attached at a frangible section to the shaft may be manipulated by an external handle during locking of the suture within the bone anchor. The bone anchor further may include locking structure for securing itself within a bone cavity.
Owner:ARTHROCARE
Tissue discrimination and applications in medical procedures
InactiveUS7050848B2Different transmission propertyDifferent capacitanceElectrotherapyInternal osteosythesisTissues typesBone Cortex
A system and method for discriminating tissue types, controlling the level of therapy to tissue, and determining the health or a known tissue by measuring the characteristics an electrical signal applied to conductive element located within or by the tissue. Additionally, the system and method may be used for determining whether the conductive tip of a pedicle probe or pedicle screw is located in one of cortical bone, cancellous bone, and cortical bone near a boundary with soft tissue, whether the conductive tip of a cannula is located adjacent to one of nerve tissue and annulus tissue, and whether the conductive tip of a cathode is located adjacent to one of nerve tissue and prostate gland tissue.
Owner:NUVASIVE
Inflatable device for use in surgical protocol relating to fixation of bone
InactiveUS7261720B2Easy to compressEasy to foldSurgical furnitureInternal osteosythesisBone CortexTrabecular bone
A balloon for use in compressing cancellous bone and marrow (also known as medullary bone or trabecular bone). The balloon comprises an inflatable balloon body for insertion into said bone. The body has a shape and size to compress at least a portion of the cancellous bone to form a cavity in the cancellous bone and / or to restore the original position of the outer cortical bone, if fractured or collapsed. The balloon desirably incorporates restraints which inhibit the balloon from applying excessive pressure to various regions of the cortical bone. The wall or walls of the balloon are such that proper inflation of the balloon body is achieved to provide for optimum compression of the bone marrow. The balloon can be inserted quickly into a bone. The balloon can be made to have a suction catheter. The balloon can be used to form and / or enlarge a cavity or passage in a bone, especially in, but not limited to, vertebral bodies. Various additional embodiments facilitate directionally biasing the inflation of the balloon.
Owner:ORTHOPHOENIX
Allograft implant
ActiveUS20050240267A1Maximize sizeInhibit migrationBone implantJoint implantsBone CortexCortical bone
An allogenic implant for use in intervertebral fusion is formed from one or more two pieces. The pieces are made from bone, and are joined together to form an implant having sufficient strength and stability to maintain a desired distance between first and second vertebrae in a spinal fusion procedure. The implant pieces may be formed of cortical bone and connected by dovetail joints, and at least one cortical bone pin may be provided to lock the pieces together and to add strength to the implant. Teeth are formed on the vertebra engaging surfaces of the implant prevent short-term slippage of the implant.
Owner:SYNTHES USA
System for stabilizing the vertebral column including deployment instruments and variable expansion inserts therefore
InactiveUS6905512B2Stabilize spineStabilizing the being's vertebral columnJoint implantsSpinal implantsIntervertebral spaceLigament structure
A system is provided for stabilizing adjacent vertebra without excision of bone or resection of ligaments comprising an expansion device and a deployment system which includes a hollow expandable insert and an expansion insert. The expandable insert includes a cylindrical body having a pair of slots having a threaded outer surface. The expandable insert is located with the slots oriented perpendicular to the vertebral column between the vertebrae. The thread cuts into the cortical bone contiguous to the intervertebral space but not substantially into the cancellous bone. The expandable insert is internally threaded. The expansion insert is externally threaded and arranged to be screwed into a bore in the expandable insert by the deployment system, whereupon the slots open to spread the vertebrae apart. The deployment system includes a tool having projecting fingers located within the slots to enable the expandable insert to be screwed into the intervertebral space.
Owner:PHOENIX BIOMEDICAL
Method and apparatus for attaching connective tissues to bone using a knotless suture anchoring device
An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone are described herein Such devices and methods permit a suture attachment that lies beneath the cortical bone surface and does not require tying of knots in the suture.
Owner:ARTHROCARE
Systems and methods for reducing fractured bone using a fracture reduction cannula
InactiveUS7153306B2Relieve painRaise the possibilitySurgical furnitureSurgical needlesFracture reductionFilling materials
Systems and methods provide for the fixation of osteoporotic and non-osteoporotic long bones, especially Colles' fractures. A cannula having a circumferential opening is inserted into cancellous bone and directed such that the circumferential opening faces the fracture. The cannula is further adapted to receive an expandable structure, the expandable structure being inserted through the cannula until it is in registration with the circumferential opening. The expandable structure is expanded through the circumferential opening into cancellous bone and toward the fracture. The expansion of the expandable structure through the circumferential opening toward the fracture causes compression of cancellous bone and moves fractured cortical bone, thus creating a cavity proximal to the fracture. The cavity is then filled with a flowable bone filling material and the material allowed to harden.
Owner:ORTHOPHOENIX
Implantable devices and methods for treating micro-architecture deterioration of bone tissue
InactiveUS20070067034A1Prevent slippagePrevent movementInternal osteosythesisSpinal implantsBone tissueImplanted device
An expandable stabilization device is disclosed that is suitable for deployment within cancellous bone, including, for example, within a vertebral body of a spine. The device comprises: an elongate expandable shaft adapted to be positioned within a vertebral body having a first profile and a second profile; wherein the shaft is adapted to cut through cancellous bone within the vertebral body during expansion from the first profile to the second profile; and further wherein the shaft is adapted to abut a surface of cortical bone within the vertebral body without passing therethrough. The invention also includes a method for treating cancellous bone, such as cancellous bone of a vertebral body. The method comprises: delivering an expandable device within the cancellous bone of in an interior of a vertebral body; expanding the delivered device within the cancellous bone of the vertebra body; applying force from a surface of the device to an inner surface of a cancellous bone of the vertebral body sufficient to cut through the cancellous bone; and applying force from a surface of the device to an inner surface of a cortical bone of the vertebral body sufficient to support the vertebral body
Owner:SPINEALIGN MEDICAL
Axial intramedullary screw for the osteosynthesis of long bones
InactiveUS6517541B1Maintain stabilityOptimizationInternal osteosythesisJoint implantsBone CortexEngineering
An axial intramedullary screw having a straight cylindrical outer surface for the operative treatment of long bones, the screw having two tips and a screw thread extending between the tips. At each of the tips there is a connection portion for screwdriver. The screw thread is used for cutting into the cortical bone of the medullary canal and due to the screwdriver connection at both ends it can be driven from either end through the cortical bone. This allows a method to be used in which the screw is threaded into one portion of a bone fragment and then after connecting a further bone fragment at the fracture site, screwed in a different direction into that further fragment. The screw also includes a transverse screw hole at one or both ends for the passage of an interlocking transverse screw therethrough.
Owner:SESIC NENAD
Tapered bioabsorbable interference screw for endosteal fixation of ligaments
InactiveUS6875216B2Easy to insertEasy to fixSuture equipmentsInternal osteosythesisBone tunnelInterference screws
A bioabsorbable interference screw having a tapered profile which extends along substantially the entire length of the screw. The tapered profile makes the screw easy to insert while providing superior fixation resulting from a progressively increasing diameter. Upon insertion, the screw engages cortical bone at the back end of the bone tunnel and fills all but 5-10 mm. of the tunnel, thereby providing increased fixation strength while also promoting fast healing. The screw includes a head provided with a specially designed drive socket with radially extending slots at its outer end for receiving corresponding protrusions on the shaft of screwdriver. The drive socket optimizes the torque capacity of the screw. To maintain wall thickness, the socket has a taper corresponding to the tapered outer profile of the screw. The taper of the socket also permits easy insertion of the tip and shaft of the driver into the screw.
Owner:ARTHREX
Composites and methods for treating bone
A system and method for treating bone abnormalities including vertebral compression fractures and the like. In one vertebroplasty method, a fill material is injected under high pressures into cancellous bone wherein the fill material includes a flowable bone cement component and an elastomeric polymer component that is carried therein. The elastomer component can further carry microscale or mesoscale reticulated elements. Under suitable injection pressures, the elastomeric component ultimately migrates within the flowable material to alter the apparent viscosity across the plume of fill material to accomplish multiple functions. For example, the differential in apparent viscosity across the fill material creates a broad load-distributing layer within cancellous bone for applying retraction forces to cortical bone endplates. The differential in apparent viscosity also transitions into a flow impermeable layer at the interface of cancellous bone and the flowable material to prevent extravasion of the flowable bone cement component.
Owner:DFINE INC
Intraosteal ultrasound during surgical implantation
IntraOsteal UltraSound (IOUS) is the use of acoustical energy to facilitate “real-time” manipulation and navigation of a device for intraosseous placement of synthetic or biologic implants and to diagnose the condition of the tissue into which the implant is being placed. Representative applications include placement of synthetic or biologic implants, such as bone screws, through vertebral pedicles during spinal fusion surgery. Devices for use in the placement of the implants include a means for creating a lumen or channel into the bone at the desired site in combination with a probe for providing realtime feedback of differences in density of the tissue, typically differences in acoustical impedance between cancellous and cortical bone. The devices will also typically include means for monitoring the feedback such as a screen creating an image for the surgeon as he creates the channel, and / or an audible signal which different tissues are present. The system can also be used for diagnostic applications.
Owner:CUTTING EDGE SURGICAL
Small joint orthopedic implants and their manufacture
ActiveUS20060052725A1Simple processLarge inventoryFinger jointsWrist jointsBone CortexCancellous bone
A technique to manufacture small joint orthopedic implants includes the steps of taking standard radiographs of a pathologic joint and the corresponding non-pathologic joint. In order to provide an accurate frame of reference, a specialized marker is placed in the radiographic field. By inspection of the radiographs and by comparison with the marker, the dimensions of the cortical bone and the cancellous bone can be quickly and accurately determined. These dimensions can be used to manufacture a suitable implant and installation tool. Typically, the implant will include a stem from which a post projects. A radially extending collar is located at the intersection between the stem and the post. A mating head is attached to the post. The head closely approximates the size and shape of the natural head being replaced. The stem will be non-round in cross-section to prevent rotation of the stem in the bone. For many applications, the head will not be fixedly attached to the post, but will be rotatable about the longitudinal axis of the post. One or more spacers that fit about the stem also can be provided in order to adjust the distance that the head projects from the bone.
Owner:SEITZ JR WILLIAM H +1
Method and apparatus for attaching connective tissues to bone using a knotless suture anchoring device
InactiveUS6855157B2Restrict movementSmall sizeSuture equipmentsInternal osteosythesisSuture anchorsBone Cortex
An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone, which permit a suture attachment that lies entirely beneath the cortical bone surface. Advantageously, the suturing material between the soft tissue and the bone anchor is secured without the need for tying a knot. The suture attachment to the bone anchor involves the looping of a length of suture around a pulley within the bone anchor, tightening the suture and attached soft tissue, and clamping the suture within the bone anchor. The bone anchor may be a tubular body having a lumen containing a plurality of suture-locking elements that clamp the suture therein. The locking elements may be thin and C-shaped. One or more locking plugs attached to separable actuation rods displace axially within the lumen and act on the locking elements to displace them radially. A generally uniform passage through the locking elements in their first positions converts to a smaller irregular passage after the locking plug displaces the elements to their second positions, thus effectively clamping the suture. The bone anchor further may include locking structure for securing itself within a bone cavity.
Owner:ARTHROCARE
Flexible elongated chain implant and method of supporting body tissue with same
InactiveUS20070162132A1Internal osteosythesisSpinal implantsSurface layerMinimally invasive procedures
Implants and methods for augmentation, preferably by minimally invasive procedures and means, of body tissue, including in some embodiments repositioning of body tissue, for example, bone and, preferably vertebrae are described. The implant may comprise one or more chain linked bodies inserted into the interior of body tissue. As linked bodies are inserted into body tissue, they may fill a central portion thereof and for example in bone can push against the inner sides of the cortical exterior surface layer, for example the end plates of a vertebral body, thereby providing structural support and tending to restore the body tissue to its original or desired treatment height. A bone cement or other filler can be added to further augment and stabilize the body tissue. The preferred implant comprises a single flexible monolithic chain formed of allograft cortical bone having a plurality of substantially non-flexible bodies connected by substantially flexible links.
Owner:DEPUY SYNTHES PROD INC
Allograft implant
ActiveUS7491237B2Inhibit migrationMaximize sizeBone implantJoint implantsBone CortexIntervertebral fusion
Owner:SYNTHES USA
Systems and methods using expandable bodies to push apart cortical bone surfaces
InactiveUS7166121B2Reduce fracturesInternal osteosythesisAnkle jointsFracture reductionIntervertebral space
Systems and methods insert an expandable body in a collapsed configuration into a space defined between cortical bone surfaces. The space can, e.g., comprise a fracture or an intervertebral space. The systems and methods cause expansion of the expandable body within the space, thereby pushing apart the cortical bone surfaces to, e.g., reduce the fracture or push apart adjacent vertebral bodies as part of a therapeutic procedure.
Owner:ORTHOPHOENIX
Expandable attachment device and method
An attachment device with a radially expandable section is disclosed. The attachment device can have helical threads, for example, to facilitate screwing the attachment device into a bone. Methods of using the same are also disclosed. The attachment device can be positioned to radially expand the expandable section in cancellous bone substantially surrounded by cortical bone.
Owner:STOUT MEDICAL GROUP
Contoured cortical bone implants
An interbody spinal implant made of cortical bone or a bone composite adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies. The implant has a leading end that includes at least a portion of an arc of a circle from side to side, and sides that are at least in part straight or a trailing end having a radius of curvature of another circle from side to side.
Owner:WARSAW ORTHOPEDIC INC
Assembled bone-tendon-bone grafts
ActiveUS20060200235A1Enhanced gripping featureHigh tensile strengthBone implantLigamentsBone CortexBone tendon bone
The present invention has multiple aspects. In its simplest aspect, the present invention is directed to an intermediate bone block comprising a machined segment of cortical bone, cancellous bone or both, the intermediate having a face comprising one to ten compression surfaces and one to ten cavities, the compression surfaces suitable for compressing soft tissue, the cavities for receiving and holding overflow soft tissue. The cavities are preferably channels, and more preferably channels having an omega cross-sectional profile. Surprisingly, the cavities and channels, which reduced the compressed surface area between the intermediate bone block and the tendon, significantly improved tendon load at failure. In standardized tests, an intermediate bone block of this invention, when combined with high surface area bone blocks of the prior art bone blocks, unexpectedly increased their load at failure. The invention is also directed to bone block assemblies suitable for binding to a soft tissue to form an implantable graft, and to such implantable grafts. A particularly preferred graft is a bone-tendon-bone graft.
Owner:RTI BIOLOGICS INC
Cortical and cancellous allograft cervical fusion block
InactiveUS7323011B2Enhance healing processPromote new bone growthBone implantJoint implantsCervical fusionsBone Cortex
A sterile composite bone graft for use in implants comprising a T shaped cortical bone load bearing member mated to a cancellous member. The crosspiece of the T defines an inner planar surface and dove tail shaped mating member extends outward from the inner planar surface. The allograft cancellous bone member defines tapered side walls on the exterior surface of the body, a flat proximal end surface and a flat distal end surface. A dove tail shaped recess with the narrowest portion exiting the flat proximal end surface is cut into the interior of the cancellous member body. The dove tail shaped member and dove tail shaped recess are mated together to hold both component members together. Pins are mounted in both members to provide additional stability.
Owner:MUSCULOSKELETAL TRANSPLANT FOUND INC
Multipiece allograft implant
ActiveUS7226482B2Promote new bone growthKeeping the implant from being displacedBone implantJoint implantsBone CortexIntervertebral fusion
Owner:SYNTHES USA
Methods for attaching connective tissues to bone using a multi-component bone anchor
InactiveUS7247164B1Easy to implementStress concentrationSuture equipmentsLigamentsFailure rateStress concentration
An innovative bone anchor and methods for securing connective tissue, such as tendons, to bone are disclosed which permit a suture attachment which lies entirely beneath the cortical bone surface, and wherein the suturing material between the connective tissue and the bone anchor is oriented in a direction generally transverse to the longitudinal axis of the bone anchor, so that axial pull-out forces exerted on the bone anchor are minimized. The suture attachment to the bone anchor involves the looping of a substantial length of suturing material around a shaft of the anchor, thereby avoiding an eyelet connection which requires a knot and which concentrates stress on a very small portion of the suturing material. Thus, failure rates are greatly decreased over conventional techniques, and the inventive procedures are significantly easier to perform than conventional techniques.
Owner:ARTHROCARE
Orthopaedic implant and screw assembly
InactiveUS20050055024A1High strengthIncrease resistanceInternal osteosythesisJoint implantsCompression deviceEngineering
Systems, devices and methods are disclosed for treating fractures. The systems, devices and methods may include one or both of an implant, such as an intramedullary nail, and a fastening assembly, such as a lag screw and compression screw assembly. The implant in some embodiments has a proximal section with a transverse aperture and a cross-section that may be shaped to more accurately conform to the anatomical shape of cortical bone and to provide additional strength and robustness in its lateral portions, preferably without requiring significant additional material. The fastening assembly may be received to slide, in a controlled way, in the transverse aperture of the implant. In some embodiments, the engaging member and the compression device are configured so that the compression device interacts with a portion of the implant and a portion of the engaging member to enable controlled movement between the first and second bone fragments. This configuration is useful for, among other things, compressing a fracture.
Owner:SMITH & NEPHEW INC
Implantable devices and methods for treating micro-architecture deterioration of bone tissue
InactiveUS20090234398A1Prevent movementInternal osteosythesisJoint implantsBone tissueImplanted device
Owner:SPINEALIGN MEDICAL
Bone marrow biopsy needle
InactiveUS6890308B2Without any resistanceLess-expensive to manufactureSurgical needlesVaccination/ovulation diagnosticsBone CortexSurgery
A needle for use in taking a bone marrow biopsy comprises a hollow tube having a front end portion formed to a reduced diameter by swaging. The front end is tapered by means of a number of circumferentially-spaced facets, forming a cutting edge. A tapering transition portion, between the main portion of the hollow tube and its reduced-diameter front end portion, is formed with a series of flutes which help in the needle cutting through the cortical bone. A spacer is provided for use in pushing the sample rearwardly out of the hollow tube, the spacer having a through-passage through which a trocar needle is passed and serving for accurate alignment of the distal ends of the hollow tube and trocar needle.
Owner:ISLAM ABUL BASHAR MOHAMMED ANWARUL
Bone anchor device having toggle member for attaching connective tissues to bone
A device for attaching connective tissue to bone has a longitudinal axis and comprises an annular toggle member and a body member disposed distally of the toggle member, such that there is an axial space between the toggle member and the body member. The toggle member is movable between an undeployed position wherein the toggle member has a smaller profile in a direction transverse to the axis and a deployed position wherein the toggle member has a larger profile in the direction transverse to the axis. When installed in a desired procedural site, in suitable bone, suturing material extends axially through a center aperture in the annular toggle member, without being secured to or contacting the toggle member. This approach permits a suture attachment which lies entirely beneath the cortical bone surface, and which further permit the attachment of suture to the bone anchor without the necessity for tying knots, which is particularly arduous and technically demanding in the case of arthroscopic procedures.
Owner:ARTHROCARE
Orthopaedic implant and screw assembly
Systems, devices and methods are disclosed for treating fractures. The systems, devices and methods may include one or both of an implant, such as an intramedullary nail, and a fastening assembly, such as a lag screw and compression screw assembly. The implant in some embodiments has a proximal section with a transverse aperture and a cross-section that may be shaped to more accurately conform to the anatomical shape of cortical bone and to provide additional strength and robustness in its lateral portions, preferably without requiring significant additional material. The fastening assembly may be received to slide, in a controlled way, in the transverse aperture of the implant. In some embodiments, the engaging member and the compression device are configured so that the compression device interacts with a portion of the implant and a portion of the engaging member to enable controlled movement between the first and second bone fragments. This configuration is useful for, among other things, compressing a fracture.
Owner:SMITH & NEPHEW INC
Multipiece allograft implant
ActiveUS20050113918A1Fine surfacePromote new bone growthBone implantJoint implantsBone CortexIntervertebral fusion
An allogenic implant for use in intervertebral fusion is formed from two parts. The first part, composed of cortical bone, provides mechanical strength to the implant, allowing the proper distance between the vertebrae being treated to be maintained. The second part, composed of cancellous bone, is ductile and promotes the growth of new bone between the vertebrae being treated and the implant, thus fusing the vertebrae to the implant and to each other. The implant is sized and shaped to conform to the space between the vertebrae. Teeth formed on the superior and inferior surfaces of the implant prevent short-term slippage of the implant.
Owner:SYNTHES USA
Methods, devices, and manufacture of the devices for musculoskeletal reconstructive surgery
ActiveUS20170014169A1Guaranteed functionAccurate analysisBone implantJoint implantsBite force quotientCombined use
A device used in conjunction with fixation hardware to provide a two-stage process to address the competing needs of immobilization and re-establishment of normal stress-strain trajectories in grafted bone. A method of determining a patient-specific stress / strain pattern that utilizes a model based on 3D CT data of the relevant structures and cross-sectional data of the three major chewing muscles. The forces on each of the chewing muscles are determined based on the model using predetermined bite forces such that a stiffness of cortical bone in the patient's mandible is determined. Based on the stiffness data, suitable implantation hardware can be designed for the patient by adjusting external topological and internal porous geometries that reduce the stiffness of biocompatible metals to thereby restore normal bite forces of the patient.
Owner:OHIO STATE INNOVATION FOUND +1
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