摘要:
An implantable assembly for stabilization of two adjacent spinous processes in a spinal column includes an elongated first component extending along a first axis, an elongated second component extending along a second axis, a hub spacer, means for inserting and securing the hub spacer transversely through the interspinous ligament separating the first and second spinous processes and means for clamping and securing first and second spinous processes of first and second adjacent vertebras, respectively, between the first and second components. The first and second components are arranged opposite and parallel to each other and are separated by the hub spacer.
摘要:
An improved spinous process fixation implant assembly 50 includes a spinous process fixation implant 100 and an interspinous spacer implant 200. The spinous process fixation implant 100 includes elongated first and second components 110, 120, that are arranged opposite and parallel to each other. First and second spinous processes 90a, 90b of first and second adjacent vertebrae 80a, 80b are clamped between the first and second components 110, 120, respectively, and are separated by the interspinous spacer implant 200. The interspinous spacer implant 200 may be inserted between the spinous processes of adjacent vertebrae from two different directions.
摘要:
An implantable assembly for stabilization of two adjacent spinous processes in a spinal column includes an elongated first component extending along a first axis, an elongated second component extending along a second axis, a hub spacer, means for inserting and securing the hub spacer transversely through the interspinous ligament separating the first and second spinous processes and means for clamping and securing first and second spinous processes of first and second adjacent vertebras, respectively, between the first and second components. The first and second components are arranged opposite and parallel to each other and are separated by the hub spacer.
摘要:
An improved interbody spinal fusion assembly for fusing a first vertebra to a second vertebra includes an interbody cage, a first plate and a second plate. The interbody cage is configured to be implanted between the first and second vertebras and comprises through-apertures configured to be filled with bone fusing material. The first plate comprises an L-shaped body having a first end configured to be attached to a first location of the interbody cage, a second end configured to be attached to a first location of the first vertebra and a corner formed between the first and second ends and configured to be attached to a second location of the first vertebra or a third location of the interbody cage. The second plate comprises a first end configured to be attached to a second location of the interbody cage and a second end configured to be attached to a first location of the second vertebra.
摘要:
An improved spinous process fixation implant assembly 50 includes a spinous process fixation implant 100 and an interspinous spacer implant 200. The spinous process fixation implant 100 includes elongated first and second components 110, 120, that are arranged opposite and parallel to each other. First and second spinous processes 90a, 90b of first and second adjacent vertebrae 80a, 80b are clamped between the first and second components 110, 120, respectively, and are separated by the interspinous spacer implant 200. The interspinous spacer implant 200 may be inserted between the spinous processes of adjacent vertebrae from two different directions.
摘要:
A cannula assembly for providing percutaneous access in minimally invasive spinal surgeries, includes an outer cannula, a nerve probe dilator and a multistage dilator system comprising a first dilator, a second dilator, a third dilator and a fourth dilator. The outer cannula and the dilators are slidable relative to each other and are arranged sequentially so that the fourth dilator surrounds the nerve probe dilator, the third dilator slides over a surface of the fourth dilator, the second dilator slides over a surface of the third dilator, the first dilator slides over a surface of the second dilator, and the outer cannula surrounds the first dilator.
摘要:
A cannula assembly for providing percutaneous access in minimally invasive spinal surgeries, includes an outer cannula, a nerve probe dilator and a multistage dilator system comprising a first dilator, a second dilator, a third dilator and a fourth dilator. The outer cannula and the dilators are slidable relative to each other and are arranged sequentially so that the fourth dilator surrounds the nerve probe dilator, the third dilator slides over a surface of the fourth dilator, the second dilator slides over a surface of the third dilator, the first dilator slides over a surface of the second dilator, and the outer cannula surrounds the first dilator.
摘要:
A spinal fixation and fusion assembly includes a bone anchoring member, a cylindrical rod and a cap. The bone anchoring member comprises an elongated body that is made entirely of bone type material. The elongated body includes a main shaft, a conical shaped distal end, a flared out proximal end, and a through-opening extending along an axis from the proximal end to the distal end. The cylindrical rod is shaped and dimensioned to be received within the through-opening and is made entirely of metal. The cap is made entirely of metal and is attached to a proximal end of the cylindrical rod.
摘要:
A device for use as a portal in percutaneous minimally invasive surgery performed within a patient's body cavity includes a first elongated hollow tube having a length adjusted with a self-contained mechanism. The first elongated tube includes an inner hollow tube and an outer hollow tube and the inner tube is adapted to slide within the outer tube thereby providing the self-contained length adjusting mechanism. This length-adjustment feature is advantageous for percutaneous access surgery in any body cavity. Two or more elongated tubes with adjustable lengths can be placed into two or more adjacent body cavities, respectively. Paths are opened within the tissue areas between the two or more body cavities, and are used to transfer devices and tools between the adjacent body cavities. This system of two or more elongated tubes with adjustable lengths is particularly advantageous in percutaneous minimally invasive spinal surgeries, and provides the benefits of minimizing long incisions, recovery time and post-operative complications.