摘要:
An apparatus and a method for guiding the placement of an object to a desired location based on an image generated by an image intensifier where the apparatus includes a first coupling mechanism that is configured to be releaseably attachable to one of the transmitter and receiver of the image intensifier and a second coupling mechanism that is coupled to the first coupling mechanism and includes an object holding mechanism, the object holding mechanism is configured to releaseably hold the object and where at least a portion of the second coupling mechanism is visible in the image generated by the image intensifier when the apparatus is attached to the image intensifier.
摘要:
Disclosed is a spinal transconnector device for coupling longitudinal spinal rods on either side of the mid-sagittal plane. The device includes two interconnected rod engagement elements, a first rod engagement elements having a vaulted surface adapted to secure to a first longitudinal spinal rod via an interference fit comprising compression of the first longitudinal spinal rod against the generally vaulted surface; and an interference pin that advances into a bore of the first rod engagement element forming an interference fit between the interference pin and the rod engagement element. The interference fit can be associated with elastic deformation of the first rod engagement element occurring as a consequence of the interference pin being advanced through the bore in the engagement element and contacting a surface of the first longitudinal spinal rod.
摘要:
A surgical instrument positioning system, comprising: at least one support; a cross member having at least one curved end portion, the at least one curved end portion being held by the at least one support such that the cross member is rotatable about an axis extending through a center of curvature of the at least one curved end portion of the cross member; and at least one surgical instrument holder suspended from the cross member.A laser alignment system for an image intensifier, comprising: at least one laser source which emits planar laser beams in first and second intersecting planes.
摘要:
An intervertebral support assembly, comprising a pair of bone allografts positioned between two adjacent vertebrae, the bone allografts being positioned towards the anterior portion of the adjacent vertebrae; and a pair of facet screws, each facet screw securing together a facet joint between the two adjacent vertebrae. A method of providing support between two adjacent vertebrae, comprising positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the front of the adjacent vertebrae; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws.
摘要:
The method of fixing soft tissue to bone includes placing an anchor device superficial to a segment of soft tissue superficially juxtaposed to a unicortical blind hole in a bone, the anchor device having a relaxed state characterized by a first outer dimension. The method includes driving the soft tissue segment into the blind hole using the anchor device. The anchor device transiently constricts to a constricted state during insertion through the blind hole, the constricted state characterized by a second outer dimension that is smaller than the first outer dimension. The method includes trapping a portion of the soft tissue segment between a portion of the anchor device and a portion of the bone when at least a portion of the anchor device is disposed sub-cortically and relaxes towards the relaxed state. Related devices, systems and methods are also described.
摘要:
Apparatus and methods for accessing an inferior vertebra, a superior vertebra, and a disc space therebetween via a transpedicular approach in the inferior vertebra that may include creating a channel normal to the pedicle and using an offset guide to create a second transpedicular channel at an angle to the first, normal pedicle channel where the second transpedicular channel passes into the inferior vertebra, superior vertebra, or the disc space therebetween.
摘要:
Disclosed is a spinal stabilization device having a plurality of elongate arms having a distal end portion and a proximal end portion, wherein the elongate arms define an interior volume between the distal end portion and the proximal end portion; at least one limit band coupled circumferentially to one or more of the plurality of elongate arms; and a tensioning element positioned within the interior volume. The plurality of elongate arms can transition from a constrained, delivery configuration that is radially contracted and axially elongated to a relaxed, deployment configuration that is radially expanded and axially shortened.
摘要:
Apparatus and methods for accessing an inferior vertebra, a superior vertebra, and a disc space therebetween via a transpedicular approach in the inferior vertebra that may include creating a channel normal to the pedicle and using an offset guide to create a second transpedicular channel at an angle to the first, normal pedicle channel where the second transpedicular channel passes into the inferior vertebra, superior vertebra, or the disc space therebetween.
摘要:
A system for sealing a hole in a body, comprising a generally cylindrical mesh formed from a plurality of helical strands which is inserted into the hole, with at least one end of the cylindrical mesh being moved least partially through an interior portion of the cylindrical shaped mesh such that the mesh expands radially outwards against sides of the hole.