摘要:
A spinal stabilization system (100) may be formed in a patient. In some embodiments, a minimally invasive procedure may be used to form a spinal stabilization system (100) in a patient. Bone fastener assemblies (102) may be coupled to vertebrae. Each bone fastener assembly (102) may include a bone fastener (108) and a collar (112). The collar (112) may be rotated and/or angulated relative to the bone fastener (108). Detachable members may be coupled to the collar (112) to allow for formation of the spinal stabilization system (100) through a small skin incision. The detachable members may allow for alignment of the collars (112) to facilitate insertion of an elongated member (104) in the collars (112). An elongated member (104) may be positioned in the collars (112) and a closure member (106) may be used to secure the elongated member (106) to the collars (112).
摘要:
A stabilization system for stabilizing at least three vertebrae, comprising a single flexible tie (28) having two free end portions (28e, 28f) and intermediate portions (28a, 28c, 28d) therebetween, said tie being adapted to form a single loop around the spinous processes of said vertebrae (V1, V2, V3). The stabilization system further comprises a group of at least two spacers (12, 110), each spacer being adapted to be interposed between the spinous processes of two adjacent vertebrae. The group of spacers (12, 110) comprises at least: a first spacer (12) having guiding means for guiding two intermediate portions (28c, 28d) of the tie, and a second spacer (110) with a tie-securing system through which the two free end portions (28e, 28f) of the tie can be inserted and pulled, the tie-securing system allowing said free end portions (28e, 28f) to be fixedly secured to the second spacer (110).
摘要:
The invention concerns an accessory for tensioning a flexible link (14) for fixing an implant on a bone element of a patient by forming a first loop around the bone element. Said accessory comprises: a rod (42) having a first end provided with means for being supported (44) on said implant; a component mobile in translation (46) surrounding said rod (42) over part of its length, said mobile component including means for being coupled (50) on the end of said link; and control means (52) mounted on said mobile component (46) for moving the mobile component relative to said rod tending to space apart the first end (42a) of the rod relative to said mobile component whereby a tension is exerted on said link relative to said implant.
摘要:
Embodiments described herein provide tools and methods for spinal fusion procedures. One embodiment of a tool can be a pedicle access tool (100) that performs the functions of targeting needle, cannula, tap and awl. The cannula of the tool can be used to guide various tools and bone graft or fusion promoting material to a surgical site for a spinal fusion procedure, such as a posterolateral procedure. In other embodiments, a k-wire can be used as the guide. The pedicle access tool comprises a cannula (102) with a tip (120) adapted to act as a bone awl, a threaded section (122) adapted to act as a bone tap, a detachable cannula handle (104), and a stylet (106) comprising a handle (138) detachably coupled to the cannula handle and a needle (140) passing through the cannula with a tip (142) that extends past the tip of the cannula.
摘要:
The disclosure is directed to vertebral stabilization systems including polymeric components having improved selective visualization means, methods of improving the selective visualization of polymeric components of a vertebral stabilization system, and methods of using vertebral stabilization systems including polymeric components having improved selective visualization means to monitor the vertebral stabilization systems during their useful life.
摘要:
A bone fixing system useful for holding bone in position, and a method for installing the same are disclosed. The ends of a conformable ligature are passed around bones, bone grafts, tendons, plates, rods, fasteners, or other anatomical or implanted structures, and the like to form a loop extending from a first portion of the blocking body. The ends of the conformable ligature are passed through the blocking body and extend out a second portion of the body. The ends may be attached to a tensioning tool and a selected tension may be applied. A closure member may engage an engagement portion of the blocking body to create a friction force to hold the conformable ligature in place without significant movement relative to the blocking body.
摘要:
The disclosure is directed to vertebral stabilization systems including polymeric components having improved selective visualization means, methods of improving the selective visualization of polymeric components of a vertebral stabilization system, and methods of using vertebral stabilization systems including polymeric components having improved selective visualization means to monitor the vertebral stabilization systems during their useful life.
摘要:
A spinal fixation installation assembly includes an elongate member having a trailing end The elongate member, which could be a rigid member, is configured for travel in a first direction along an elongate portion of a first bone anchor coupled to a spine The elongate member is also configured to travel in a second direction between the first bone anchor and a second bone anchor also coupled to the spine A cord member is coupled to the trailing end of the elongate member In one aspect of this embodiment, a spine rod is coupled to the cord member at its leading end and is configured for travel in the first and second directions The elongate portion of one or more of the bone anchors may extend percutaneously from the spine, while the spine rod may be releasably coupled to the cord member