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 and extending along a longitudinal axis, 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 structured and configured to be axially 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 while said second member is mounted to said anchor, wherein said second member includes a pair of jaws movable relative to one another to releasably engage said anchor therebetween, wherein said first member is coupled to said pair of jaws, said pair of jaws moving between an open position and a closed position in correspondence with a relative positioning between said first member and said second member.
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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
58 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 and extending along a longitudinal axis, 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 structured and configured to be axially 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 while said second member is mounted to said anchor, wherein said second member includes a pair of jaws movable relative to one another to releasably engage said anchor therebetween, wherein said first member is coupled to said pair of jaws, said pair of jaws moving between an open position and a closed position in correspondence with a relative positioning between said first member and said second member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. 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; at least one anchor extension mountable to the anchor and extending along a longitudinal axis, 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 structured and configured to be axially 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 while said second member is mounted to said anchor, wherein said first member is an outer sleeve with a passage and said second member is movably mounted in said passage of said first member, wherein; said anchor extension includes a locking mechanism to releasably secure said first and second members in position relative to one another; said first member is engaged with said second member to manipulate a distal portion of said second member between an open configuration to receive the anchor and a mounting configuration to mount the anchor thereto as said second member is displaced proximally relative said first member; and said locking mechanism includes a lock button pivotally mounted to said first member, said lock button being movable to a first orientation relative to said first member and into engagement with said second member to provide an indication that said second member is in said mounting configuration. - View Dependent Claims (10, 11, 12, 13, 14)
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15. 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, wherein said anchor extension extends along a longitudinal axis and includes a first elongated sleeve and a second elongated sleeve, said first and second bodies being coupled to said second sleeve and said first sleeve extends about said second sleeve and is axially movable along said second sleeve with said first and second bodies located distally of said first sleeve and said passage being formed between said proximal end of said anchor and said first sleeve, wherein said pair of bodies form jaws for gripping said anchor therebetween and said first sleeve is coupled to said pair of jaws, said jaws moving between an open position and a closed position in correspondence with a relative positioning between said first sleeve and said second sleeve. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An instrument system for reducing displacement between adjacent vertebrae, comprising:
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an inserter engageable to a connecting element; at least one anchor extension extending along a longitudinal axis and 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 each extending along said longitudinal axis, said second member being mountable to said anchor and said first member and said second member being movable relative to one another along said longitudinal axis 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, wherein said first member is an outer sleeve with a passage and said second member is movably mounted in said passage of said first member, wherein; said anchor extension includes a locking mechanism to releasably secure said first and second members in position relative to one another; said first member is engaged with said second member to manipulate a distal portion of said second member between an open configuration to receive the anchor and a mounting configuration to mount the anchor thereto as said second member is displaced proximally relative said first member; and said locking mechanism includes a lock button pivotally mounted to said first member, said lock button being movable to a first orientation relative to said first member and into engagement with said second member to provide an indication that said second member is in said mounting configuration. - View Dependent Claims (23, 24, 25, 26)
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27. 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 extending along a longitudinal axis and 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 each extending along said longitudinal axis, said second member including a pair of jaws being mountable to said anchor with said anchor between said pair of jaws and said first member and said second member being movable relative to one another along said longitudinal axis 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, wherein said first member includes a proximal housing portion, and further comprising a drive member rotatably received in said housing portion in engagement with said second member, said drive member being operable to move said first and second members relative to one another, wherein said first member is coupled to said pair of jaws, said pair of jaws moving between an open position and a closed position in correspondence with a relative positioning between said first member and said second member. - View Dependent Claims (28, 29, 30)
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31. 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 including a pair of jaws mountable to said anchor with said anchor between said pair of jaws, 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, wherein each of said jaws includes a protrusion extending therefrom toward the other of said pair jaws, said protrusions being received in aligned receptacles of said anchor when said second member is mounted thereto, wherein said first member is coupled to said pair of jaws, said pair of jaws moving between an open position and a closed position in correspondence with a relative positioning between said first member and said second member. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. 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; 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 including a pair of jaws mountable to said anchor with said anchor between said pair of jaws, 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, wherein each of said jaws includes a protrusion extending therefrom toward the other of said pair jaws, said protrusions being received in aligned receptacles of said anchor when said second member is mounted thereto, wherein; said first member is an outer sleeve with a passage and said second member is movably mounted in said passage of said first member; said anchor extension includes a locking mechanism to releasably secure said first and second members in position relative to one another; said first member is engaged with said second member to manipulate a distal portion of said second member between an open configuration to receive the anchor and a mounting configuration to mount the anchor thereto as said second member is displaced proximally relative said first member; and said locking mechanism includes a lock button pivotally mounted to said first member, said lock button being movable to a first orientation relative to said first member and into engagement with said second member to provide an indication that said second member is in said mounting configuration. - View Dependent Claims (42, 43, 44, 45)
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46. 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, wherein; said first member is an outer sleeve with a passage and said second member is movably mounted in said passage of said first member and said first member is engaged with said second member to manipulate a distal portion of said second member between an open configuration to receive the anchor and a mounting configuration to mount the anchor thereto as said second member is displaced proximally relative said first member; and said anchor extension includes a locking mechanism to releasably secure said first and second members in position relative to one another, said locking mechanism including a lock button pivotally mounted to said first member, said lock button being movable to a first orientation relative to said first member and into engagement with said second member to provide an indication that said second member is in said mounting configuration, and said lock button further being movable out of said first orientation as said second member is proximally displaced relative to said first member. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. 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 operable to move said connecting element 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 at a location spaced proximally from a proximal end of said anchor, wherein said anchor extension extends along a longitudinal axis and includes a first elongated sleeve and a second elongated sleeve, said first and second bodies being coupled to said second sleeve and said first sleeve extends about said second sleeve and is axially movable along said second sleeve with said first and second bodies located distally of said first sleeve and said passage being formed between said proximal end of said anchor and said first sleeve, wherein said pair of bodies form jaws for gripping the anchor therebetween and said first sleeve is coupled to said pair of jaws, said jaws moving between an open position and a closed position in correspondence with a relative positioning between said first sleeve and said second sleeve.
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57. An instrument system for reducing displacement between adjacent bony structures, comprising:
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at least one anchor configured to engage a bony structure; an elongated connecting element engageable to said at least one anchor when said connecting element is positioned along the bony structure; and at least one anchor extension mounted to said at least one anchor, wherein said at least one anchor extension extends along a longitudinal axis and said anchor is structured for percutaneous manipulation with said at least one anchor extension to position said at least one anchor for engagement with said elongated connecting element, said at least one anchor extension including a first member and a second member, said second member including a pair of jaws being mountable to said at least one anchor, and said first member and said second member being structured and configured to be axially movable relative to one another to contact said connecting element with said first member and move said at least one anchor and said connecting element toward one another while said second member is mounted to said at least one anchor, wherein said first member is coupled to said pair of jaws, said jaws moving between an open position and a closed position in correspondence with a relative positioning between said first member and said second member. - View Dependent Claims (58)
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Specification