Instruments and methods for minimally invasive spinal stabilization
First Claim
Patent Images
1. An instrument system for reducing displacement between adjacent bony structures, comprising:
- an inserter engageable to a connecting element to percutaneously position the connecting element adjacent an anchor securable to at least one of the adjacent bony structures; and
at least one anchor extension mountable to the anchor, wherein said anchor is manipulatable percutaneously with said at least one anchor extension to position said anchor for engagement with said connecting element, said at least one anchor extension including a first member and a second member, said second member being mountable to said anchor, and said first member and said second member being movable relative to one another to contact said connecting element with said first member and move said anchor and said connecting element toward one another.
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Accused Products
Abstract
Instruments and method are provided for introducing a flexible stabilization element into a patient in a minimally invasive surgical approach and securing the flexible stabilization element to one or more anchors. Also provided are instrument and methods for reduction of displacement between adjacent vertebrae in a minimally invasive surgical approach, and for minimally invasive stabilization of reduced vertebrae.
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Citations
105 Claims
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1. An instrument system for reducing displacement between adjacent bony structures, comprising:
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an inserter engageable to a connecting element to percutaneously position the connecting element adjacent an anchor securable to at least one of the adjacent bony structures; and
at least one anchor extension mountable to the anchor, wherein said anchor is manipulatable percutaneously with said at least one anchor extension to position said anchor for engagement with said connecting element, said at least one anchor extension including a first member and a second member, said second member being mountable to said anchor, and said first member and said second member being movable relative to one another to contact said connecting element with said first member and move said anchor and said connecting element toward one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An instrument system for reducing displacement between adjacent vertebrae, comprising:
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a first anchor extension mountable to a first anchor secured to a first vertebra;
a second anchor extension mountable to a second anchor secured to a second vertebra; and
a connecting element positionable between the first anchor and the second anchor, wherein said second anchor extension includes a first member and a second member movable relative to one another, said second member being mountable with the second anchor, said first member being movable relative to said second member to contact said connecting element and move said connecting element toward the second anchor. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An instrument facilitating placement of an implant adjacent an anchor, comprising:
a first member and a second member movably engaged in a passage of said first member, said second member including a proximal sleeve portion and a pair of jaws pivotally coupled to a distal end of said sleeve portion, said pair of jaws each including an body and an anchor coupler at a distal end of said body, said pair of jaws being linked to said first member, wherein said jaws are movable between an open configuration for receiving an anchor and a mounting configuration for gripping an anchor therebetween as said second member is displaced proximally relative to said first member. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. An instrument system for stabilizing adjacent vertebrae, comprising:
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an inserter engageable to a connecting element; and
at least one anchor extension mountable with an anchor secured to a vertebra, wherein said inserter is movably mountable to said at least one anchor extension to move said connecting element along an insertion axis to a position adjacent said anchor, wherein said at least one anchor extension includes a first body and a second body coupled to said anchor, said first and second bodies forming a passage therebetween adapted to receive said connecting element therethrough along the insertion axis at a location spaced proximally from a proximal end of said anchor. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58)
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59. A spinal stabilization element, comprising:
an elongate member extending along a longitudinal axis, said elongate member being curved along said longitudinal axis between a distal portion and a proximal portion, said distal and proximal portions each being engageable to an anchor secured to respective ones of first and second vertebrae, said distal and proximal portions being movable relative to one another when secured to the anchors. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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70. A spinal stabilization element, comprising:
an elongate member extending along a longitudinal axis, said elongate member including a distal portion, a proximal portion, and an intermediate portion extending therebetween, said distal and proximal portions being substantially rigid and each being engageable to respective ones of first and second anchors engageable to first and second vertebrae, said intermediate portion being flexible and permitting movement of said distal and proximal portions relative to one another when secured to the anchors. - View Dependent Claims (71, 72, 73)
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74. A method for stabilizing a spinal motion segment, comprising:
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securing a first anchor to a first vertebra;
securing a second anchor to a second vertebra;
positioning a flexible connecting element between the first and second anchors;
moving at least one of the first and second anchors and the flexible connecting element toward one another; and
securing the flexible connecting element to the first and second anchors. - View Dependent Claims (75, 76, 77, 78, 79)
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80. A method for reducing a displaced spinal motion segment, comprising:
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securing a first anchor to a first vertebra;
securing a second anchor to a second vertebra;
coupling a first anchor extension to the first anchor;
coupling a second anchor extension to the second anchor;
engaging a connecting element to one of the first and second anchors; and
manipulating the anchor extension of the other of the first and second anchors to reduce spondylolisthesis between the first and second vertebrae. - View Dependent Claims (81, 82, 83, 84, 85, 86)
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87. A method for reducing a displaced spinal motion segment, comprising:
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securing a first anchor to a first vertebra;
securing a second anchor to a second vertebra;
percutaneously placing a connecting element between the first and second anchors;
engaging the connecting element to the first anchor;
reducing displacement between the first and second vertebrae; and
engaging the connecting element to the second anchor. - View Dependent Claims (88, 89, 90)
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91. An instrument system for reducing displacement between adjacent vertebrae, comprising:
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an inserter engageable to a connecting element; and
at least one anchor extension mountable with an anchor secured to a vertebra, wherein said inserter is movably mountable to said at least one anchor extension to move said connecting element along an insertion axis to a position adjacent said anchor, wherein said at least one anchor extension includes a first member and a second member, said second member being mountable to said anchor and said first member and said second member being movable relative to one another to contact said connecting element with said first member and move said anchor and said connecting element toward one another in a direction transverse to said insertion axis. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105)
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Specification