A process for nucleotomy of an intervertebral disk to create a nuclear space and a method for replacing a nucleus pulposus of an intervertebral disk after a nucleotomy are provided. The methods position a nuclear implant between two overlying and underlying vertebrae of a spine segment in the form o
A process for nucleotomy of an intervertebral disk to create a nuclear space and a method for replacing a nucleus pulposus of an intervertebral disk after a nucleotomy are provided. The methods position a nuclear implant between two overlying and underlying vertebrae of a spine segment in the form of one or more continuous wire arranged as a stack of helices inside the nuclear space.
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1. A process for nucleotomy of an intervertebral disk to create a nuclear space, comprising: positioning and inserting a pin into a pedicle of an overlying vertebra;threading a plug onto the pin to reach the pedicle of the overlying vertebra;placing a first guide tube onto the plug, the first guide
1. A process for nucleotomy of an intervertebral disk to create a nuclear space, comprising: positioning and inserting a pin into a pedicle of an overlying vertebra;threading a plug onto the pin to reach the pedicle of the overlying vertebra;placing a first guide tube onto the plug, the first guide tube comprising a threaded portion at an end of the tube that contacts the pedicle, and anchoring the first guide tube to the pedicle via the threaded portion;removing the pin and the plug and inserting a second guide tube inside the first guide tube, the second guide tube having a bent profile, and drilling a hole in a body of the overlying vertebra with the second guide tube so as to create a bone channel in the body of the overlying vertebra;inserting a flexible cutter inside the second guide tube and piercing a lower plate of the overlying vertebra;removing the flexible cutter and inserting into the second guide tube a cutting device that is actuated in rotation, rotating the cutting device in a controlled manner, and cutting a nucleus pulposus of the intervertebral disk so as to create a nuclear space; andinserting an injection and suction system through the second guide tube and into the nuclear space, and aspirating and suctioning any cutting debris. 2. A process for nucleotomy of an intervertebral disk to create a nuclear space, comprising: positioning and inserting a pin into a pedicle of an overlying vertebra or an underlying vertebra;threading a plug onto the pin to reach the pedicle of the overlying vertebra or underlying vertebra;placing a guide tube onto the plug, the guide tube comprising either a threaded portion or one or more points at an end of the tube that contacts the pedicle, and anchoring the guide tube to the pedicle of the overlying vertebra or underlying vertebra via the threaded portion or the one or more points;removing the pin and the plug and inserting a cannula bit inside the guide tube, and drilling a hole in a body of the overlying vertebra or underlying vertebra with the cannula bit, so as to create a bone channel in the pedicle of the overlying vertebra or underlying vertebra;removing the cannula bit and inserting a threaded cannula into the bone channel, the cannula comprising an inside bore channel and a threaded portion at an end of the cannula that contacts the pedicle, and anchoring the cannula to the pedicle;positioning a lateral orifice of the inside bore channel of the threaded cannula in a direction of a lower plate of the overlying vertebra or an upper plate of the underlying vertebra to reach an upper or lower surface of the intervertebral disk;inserting a bit or a flexible square point inside the bore channel of the threaded cannula, and perforating either the lower plate of the overlying vertebra or the upper plate of the underlying vertebra and the lower surface of the intervertebral disk, to reach a nucleus pulposus of the intervertebral disk;initiating nucleotomy of the intervertebral disk to eliminate in a controlled manner the nucleus pulposus;inserting an extraction device through the threaded cannula and into the intervertebral disk; andremoving the nucleus pulposus, so as to create a nuclear space. 3. A method for replacing a nucleus pulposus of an intervertebral disk after a nucleotomy, the nucleotomy providing a nuclear space in the intervertebral disk between an ending plate of an upper vertebra and an ending plate of a lower vertebra and a boring channel extending through either of the ending plates, the boring channel having a distal end with an opening located adjacent to a vertical axis of the vertebra, the method comprising: inserting a wire through the boring channel and into the nuclear space, so as to form an implant, the wire comprising a radio-opaque material and having a distal portion, wherein,the distal portion of the wire abuts against an ending plate of the vertebra opposite to the boring channel,the wire curves relative to the vertical axis, and defines a stacked outer helix encircling the vertical axis, andthe stacked outer helix has an outer surface and an inner surface, the outer surface is concentrically located adjacent to a peripheral inner wall of the intervertebral disk and the stacked outer helix is in contact with both ending plates;further inserting the wire through the boring channel and into the nuclear space, so that the wire curves relative to the vertical axis and defines a plurality of stacked inner helices encircling the vertical axis, each of the plurality of stacked inner helices having an outer surface and an inner surface, wherein,the outer surface of one of the plurality of stacked inner helices is concentrically located adjacent to the inner surface of the outer helix, andthe stacked inner helices are in contact with both ending plates; andfurther inserting the wire until the wire (i) substantially fills the nuclear space, or (ii) partially fills the nuclear space such that one of the plurality of stacked inner helices defines a central space. 4. The method according to claim 3, further comprising inserting filling material to fill the central space. 5. The method according to claim 3, wherein the wire is a first wire, the method further comprising inserting a second wire to fill the central space. 6. The method according to claim 5, wherein, the stacked outer helix is a first stacked outer helix, the plurality of stacked inner helixes is a first plurality of stacked inner helixes, the central space is a first central space, and the second wire comprises a radio-opaque material,and inserting the second wire comprises inserting the second wire through the boring channel and into the nuclear space, wherein,the distal portion of the second wire abuts against an ending plate of the vertebra opposite to the boring channel,the second wire curves relative to the vertical axis, and defines a second stacked outer helix encircling the vertical axis,the second stacked outer helix has an outer surface and an inner surface, the outer surface of the second stacked outer helix is concentrically located adjacent to the surface of one of the first plurality of stacked inner helixes defining the central space, and the second stacked outer helix is in contact with both ending plates;further inserting the second wire so that the second wire curves relative to the vertical axis and defines a second plurality of stacked inner helices encircling the vertical axis, each of the second plurality of stacked inner helices having an outer surface and an inner surface, wherein,the outer surface of one of the second plurality of stacked inner helices is concentrically located adjacent to the inner surface of the second outer helix, andthe second stacked inner helices are in contact with both ending plates; andfurther inserting the second wire until the second wire (i) substantially fills the first nuclear space, or (ii) partially fills the first nuclear space such that one of the second plurality of stacked inner helices defines a second central space. 7. The method according to claim 6, further comprising inserting filling material to fill the second central space.
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