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7643867 |
Fiducial marker devices, tools, and methods
This document discusses, among other things, fiducial marker devices, tools, and methods. One example illustrates a combined computed tomography (CT) imagable fiducial locator head, an integral...
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7635379 |
Pedicle screw assembly with bearing surfaces
A motion interface structure for use with a pedicle screw is provided, the motion interface structure defining a central passage having an internal face. A helical thread is formed on at least a...
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7524326 |
Bone screw
A bone screw is disclosed for attaching a spinal fixing element. The bone screw includes a threaded screw shank that can be fixed in place in a bone and a screw head having a fastening area for...
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7338491 |
Spinal fixation locking mechanism
The present invention relates to a locking mechanism and method of fixation, such as the fixation of a fixation device like a bone screw and of a stabilization device like a rod to the spine. The...
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7296500 |
System and method for applying torque to a fastener
A torque multiplication system having a mechanism for torque determination including an anti torque component, an input handle, a transfer mechanism, and an output shaft for use in setting screws...
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7291153 |
Polyaxial screw with improved locking
A polyaxial pedicle screw assembly incorporates a concave portion on a receiver which mates with a convex surface on a head of the screw to form a ball joint. The radius of at least a portion of...
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7270666 |
Cross-pin graft fixation, instruments, and methods
A two piece graft fixation arrangement includes a graft block engageable with a graft and a transverse member engageable with the graft block to fix the graft block in a bone tunnel. Instruments...
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7229444 |
Trochanteric cerclage plate
A bone fixation system has at least one cerclage cable and an elongate bone plate. The bone plate has a bone contacting surface, first and second spaced side portions and an outer surface opposite...
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7223268 |
Locking device for securing a rod-shaped element in a holding element connected to a shank
An element with a shank ( 1 ) and a holding element ( 2; 21; 21 ′) connected to it for connecting to a rod ( 100 ) is provided, wherein the holding element ( 2; 21; 21 ′) has a recess having a...
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7156849 |
Rod reduction nut and driver tool
A rod reduction device is provided having a reduction nut adapted to mate to the rod-receiving portion of a spinal implant, and a driver tool that is effective to engage the reduction nut such that...
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7125410 |
Elastic stabilization system for vertebral columns
A vertebral column implant for the elastic stabilization of motion segments ( 1, 2 ) comprising an elastically bendable connecting element ( 5 ) which can be passed through the seats ( 4 ) of a...
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7122037 |
Bone fracture fastener and material for production thereof
A fastener for the treatment of fractures and the materials for production thereof. The fastener having a head with a contact portion for an installation tool and an attaching part having a treaded...
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7087057 |
Polyaxial bone screw
The present invention generally provides a polyaxial fixation device having a shank with a spherical head formed on a proximal end thereof, and a receiver member having an axial passage formed...
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RE39089 |
Polyaxial pedicle screw having a threaded and tapered compression locking mechanism
A polyaxial orthopedic device for use with rod implant apparatus includes a screw having a curvate head, a two-piece interlocking coupling element which mounts about the curvate head, and a rod...
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7018378 |
Screw
An element with a thread is created, in which both partial flanks enclose a negative angle with a plane extending perpendicular to the screw axis. Further, a screw or a hook for connecting to a...
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6964666 |
Polyaxial bone screw locking mechanism
A bone screw having a head and a shank. The shank having a ball thereon and the head having a socket for receiving the ball. The ball being externally threaded and the chamber communicating with...
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6942667 |
Bone anchor
An apparatus and method for fastening a percutaneous medical device to bone is presented, comprising an anchor which comprises an outer threaded segment and an inner cavity comprising an inner...
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6918912 |
Condylus screw
An osteosynthetic device, particularly a condylus screw, which is composed of a female-type part and a shank part which each have a flanged portion. At least one flanged portions is a separate part...
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6911030 |
Fixing element and ancillary for stabilizing vertebrae
The invention concerns an osteosynthesis system, comprising at least a linking element in the form of a rod, at least two fixing elements each capable of being anchored in a vertebra, and a locking...
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6902567 |
Device for fixing bone sections separated because of a fracture
A device ( 2 ) for fixing bone sections separated because of a fracture comprises a plate ( 4 ) with bores ( 8 ) for the fastening to a bone, a plurality of internally hollow barrels ( 10 ),...
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6893443 |
Angle-adjustable bone screw and fixation device
The invention is related to a bone screw and a device for osteosynthetic fixation. The bone screw includes a head, a shank, and a collar disposed therebetween. A plate or bone fixation assembly may...
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6835196 |
Anchoring element
An anchoring element with a screw ( 12 ) comprising a threaded section ( 13 ) and a head ( 15 ) designed as a spherical segment-shaped section, and with a receiving portion ( 1 ) for connecting the...
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6808526 |
Osteosynthesis screw, especially for application by a translaminar vertebral screw
An osteosynthesis screw ( 1 ) used especially for application by a translaminar vertebral screw, comprises a shaft ( 3 ) at least partially provided with a thread ( 2 ) and a head ( 4 ) formed at...
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6800079 |
Orthopedic stabilization device and method
An orthopedic stabilization structure including a threaded fastener capable of articulation to accommodate various skeletal geometries, a rod, and a cup supporting the threaded fastener and the rod...
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6755829 |
Lock cap anchor assembly for orthopaedic fixation
An assembly such as an anchor screw, bone plate, offset hook, post, transverse connector or other spinal anchor for anchoring to bone and clamping a linkage such as a rod, wire cable or the like....
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6755836 |
Bone screw fastener and apparatus for inserting and removing same
A system for and methods of easily and securely inserting and removing a fastener usable during orthopedic surgery to promote proper healing of injured bone are disclosed. In at least one...
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6736820 |
Bone screw
A bone screw having a screw member ( 1 ) possessing a threaded section ( 2 ) and a head ( 3 ) and a receiving part ( 5 ) at the head end for receiving a rod to be connected to the bone screw is...
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6736816 |
Polyaxial connection device and method
A surgical implant assembly, and components thereof, are disclosed. Such assemblies include a connector device and an anchoring shaft. The assemblies are useful for insertion into bone and...
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6730089 |
Nested closure plug and set screw with break-off heads
A nested closure plug and set screw arrangement with break-off heads for securing a spinal fixation rod within to a bone screw includes a closure plug advanceable into an open channel of a bone...
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6730092 |
System and method for bone fixation
A system and method for maintaining positions of bones fixed or approximated relative to each other is provided that is ideal for minimizing interference with surrounding viscera in spinal column...
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6726687 |
Closure plug for open-headed medical implant
A closure for an open headed medical implant, such as a bone screw. The closure having a cylindrical body having an axis of rotation and also having a threaded radially outer surface. The body...
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6723100 |
Bone screw and fastening tool for same
The invention relates to a bone screw and a tool for fixing same. A bone screw has a screw element ( 1 ), comprising a screw shank ( 2 ) and a screw head ( 3 ), a cylindrical receiver part ( 5 )...
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6669697 |
Self-retaining bolt for internal spinal stabilizers
A multi-axis correction washer for use with a spinal stabilizer for internal spinal fixation. The body of the washer is provided in cylindrical and wedge-shaped cylindrical configurations with a...
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6668688 |
Expandable screw apparatus and method thereof
An apparatus for an expandable screw including an outer screw, a inner screw, and an end nut. An assembly and method for driving and expanding an expandable screw apparatus into a surface or...
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6663635 |
Bone screw with two-part screw head
The invention is related to a fastener and a bone fixation assembly for the internal fixation of vertebral bodies. The bone fastener includes a shank having a longitudinal axis, a head positioned...
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6660005 |
Vertebra correcting and fixing device
A vertebra correcting and fixing device including: a vertebra fixing screw to be threadedly connected to a vertebra; A movable spherical body which can be combined with this vertebra fixing screw;...
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6652526 |
Spinal stabilization rod fastener
A spinal stabilization rod fastener is comprised of a U-shaped bracket with a slot for receiving a spinal stabilization rod. A cavity is arranged on an interior of each arm. Inverted trapezoidal...
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6635063 |
Set of surgical tools and surgical method for anterior cruciate ligament reconstruction
A surgical inserter is provided which includes (a) a head portion formed with a ring acceptor for accepting a ring of the surgical screw; and (b) a neck portion connected to, or integrally formed...
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6620167 |
Orthopedic screw having driver-locking head
According to this invention an orthopedic screw having a first portion and a second portion is disclosed, wherein said first portion comprises a head having a substantially smooth exterior surface...
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6616694 |
Apparatus for anchoring autologous or artificial tendon grafts in bone
An anchor assembly for autologous or artificial tendon grafts comprises an insertion element and a stabilizing element. The insertion element has a stem and a head containing an aperture large...
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6610080 |
Parabolic eyelet suture anchor
A suture anchor for securing soft tissue to bone including a body extending along a longitudinal axis between opposite ends, and at least one eyelet extending between lateral surfaces of the body...
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6610062 |
Method and system for spinal fixation
A method and a system for a spinal fixation incorporate a plurality of polydirectional fixation screws and a plurality of linkages. The polydirectional fixation screws include an upper member and a...
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6596008 |
Method and instruments for percutaneous arthroscopic disc removal, bone biopsy and fixation of the vertebral
The insertion points for guide pins used in percutaneous vertebral fixation by pedicle screw are determined by establishing an approach path on a CT image, measuring on the CT image the distance...
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6585740 |
Bone screw
The central portion of the screw according to the invention has a series of segments varying in diameter, typically having a segment located near the screw head with a large diameter, a segment...
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6565573 |
Orthopedic screw and method of use
This invention is directed to an orthopedic screw with a screw head, a screw body with distal tip, a shank with an enlarged diameter at the trailing end and a thread extending radially outward from...
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6565566 |
Sacral screw assembly and method
A sacral screw assembly may provide a connection to a sacrum for a spinal fixation assembly. The sacral screw assembly may include a fixation component, connector, spinal rod, and a fastener. The...
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6547789 |
Holding apparatus for the spinal column
A holding apparatus for the vertebra of a spinal column. It furthermore has a mount for a bar which is provided at the side of the holding apparatus which faces away from a clamping screw. The...
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6537276 |
Apparatus for bracing vertebrae
An apparatus for bracing a plurality of vertebrae of the human spine has at least two pedicle screws, each having an annular head with an opening therewithin and including a slot therewithin. Each...
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6533790 |
Self-guided pedical screw
A transpedicular screw having a round head and thin neck so that when the head encounters resistence, such as the harder cortex of a pedicle, it bends toward the softer axis of the pedical, thus...
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6508820 |
Intramedullary interlock screw
An intramedullary interlock screw includes an elongate shank having a preferably cylindrical shank outer surface, and an external thread disposed helically about the shank and having a thread outer...
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