摘要:
A surgical implant insertion system for deployment and removal of an implant into a vertebral body. The system includes an actuation rod, an actuator handle coupled to the actuation rod, and an inserter locking tube disposed over the actuation rod and coupled to an inserter handle. Upon insertion of the implant into the vertebral body using the inserter handle, the actuator handle is turned causing the actuation rod to expand or compress the implant disposed at a distal end of the inserter locking tube.
摘要:
A system for performing a procedure on a spine of a patient includes a curved tissue distractor, a curved housing, and an exterior channel. The curved tissue distractor includes a first distractor ramp and a second distractor ramp. The curved housing is configured to slide between the first and second distractor ramps. The curved housing includes a distal end, a proximal end, and an interior channel disposed between the distal end and the proximate end. The exterior channel is disposed on an outside surface of the curved housing and between the distal end and the proximal end. The curved housing is configured to slide between the first and second distractor ramps to provide access through the interior channel to the spine.
摘要:
A polyaxial screw body includes a side wall defining a lumen having a first end and a second end. An opening disposed at the first end of the lumen, includes an interior surface disposed in the side wall thereabout. The interior surface is adapted to accommodate a head portion of a pedicle screw. A transverse channel extends from a first aperture through the side wall to a second aperture and is adapted to accommodate a portion of a fixation rod therebetween. A lateral connector extending integrally from the side wall.
摘要:
A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
摘要:
A retractor device for spearing the body tissue apart is provided. The retractor includes a housing configured to include a plurality of sections, wherein each section is configured to accommodate placement of at least one blade, a blade holding mechanism configured to secure the at least one blade within the housing, a translation mechanism configured to provide translation movement of at least one of the sections, and a rotation mechanism configured to provide rotation movement of at least one blade.
摘要:
Embodiments of an adjustable occipital plate is provided. The plate includes a fixation plate, at least one lateral rod configured to be coupled to the fixation plate, at least one sliding link configured to be coupled to the at least one lateral rod, and at least one posterior cervical rod configured to be coupled to the at least one sliding link using at least one rod connector.
摘要:
A foldable tail assembly for an aircraft includes a stabilizer and a pair of right and left fins mounted with respect to the stabilizer so that the fins may lay flat over the stabilizer during periods when the aircraft is not flight-ready, and so that the fins may be erected above the stabilizer to form a triangular configuration when the aircraft is ready to fly.
摘要:
A conveyor system has a pair of elongated rails that support a pair of conveyors. A lifting mechanism is mounted to the rails for lifting the conveyor itself, or for lifting the circuit board at its edges near the conveyor. A stripping bar is provided in the rails for lifting stop tabs. The stripping bar and the lifting plates are moved by a cylinder that drives a camming plate along a direction of travel, while this motion is translated into motion transverse to the direction of travel.
摘要:
A compound which is an N-(imidazolymethyl) diphenylazomethine derivative of the general formula (I) ##STR1## wherein R.sub.1 is chlorine or methyl,X is a thio or sulphonyl group, andR.sub.2 is a C.sub.1 -C.sub.4 alkyl, allyl, cyclohexyl or 2-pyridyl group, a phenyl group optionally substituted by methyl or one or two halogen atoms, or a benzyl group optionally substituted by a halogen atom, a methyl group or a methoxy group, or an addition salt with a pharmaceutically acceptable acid finds use in the treatment of ulcers.
摘要:
An intervertebral device comprises a plurality of struts that are rotatably associated with each adjacent strut to form a modifiable inner volume V for bone graft containment.