Method and apparatus for use of a mill or reamer
First Claim
Patent Images
1. A resection assembly to allow resection of a selected bone portion, comprising:
- a positioning rod adapted to be disposed within the selected bone portion;
a reamer guide portion moveable relative to said positioning rod and adjustably securable in at least a first position and a second position;
a resecting tool guided by said reamer guide portion such that a selected portion of the selected bone portion is resected, said resecting tool translating in a direction generally along a longitudinal axis of the bone separate from said positioning rod during resection of the selected bone portion;
a spacer receiving a portion of said positioning rod and disposed between the bone portion and the reamer guide portion during resection and operable to limit said translation of the resecting tool during resection;
a depth guide assembly including a stop extending from said resecting tool and selectively secured to various positions along said resecting tool and operable to engage said reamer guide portion upon sufficient translation of said resecting tool to thereby limit movement of said resecting tool relative to said positioning rod; and
wherein said positioning rod and said resecting tool are passed through an incision.
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Abstract
An assembly and method for providing a less invasive resection of various bone portions. Generally, the assembly includes a positioning rod and a reamer that may be moved relative to the positioning rod with a guiding portion. The method allows for use of the assembly through a substantially small incision to reduce trauma to the patient during the resection procedure and decrease recovery time.
155 Citations
25 Claims
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1. A resection assembly to allow resection of a selected bone portion, comprising:
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a positioning rod adapted to be disposed within the selected bone portion; a reamer guide portion moveable relative to said positioning rod and adjustably securable in at least a first position and a second position; a resecting tool guided by said reamer guide portion such that a selected portion of the selected bone portion is resected, said resecting tool translating in a direction generally along a longitudinal axis of the bone separate from said positioning rod during resection of the selected bone portion; a spacer receiving a portion of said positioning rod and disposed between the bone portion and the reamer guide portion during resection and operable to limit said translation of the resecting tool during resection; a depth guide assembly including a stop extending from said resecting tool and selectively secured to various positions along said resecting tool and operable to engage said reamer guide portion upon sufficient translation of said resecting tool to thereby limit movement of said resecting tool relative to said positioning rod; and wherein said positioning rod and said resecting tool are passed through an incision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An assembly to resect a selected bone portion, comprising:
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a positioning member partially disposed within the selected bone portion; a guiding member rotatably extending from said positioning member that is adjustably securable in at least a first position enabling resection of a first portion of the bone and a second position enabling resection of a second portion of the bone; and a resecting member guided by said guiding member and rotatable about a resecting axis, said resecting member translating in a direction generally along a longitudinal axis of the bone separate from said positioning member during resection of the selected bone portion; a depth selection assembly including; a depth guide operably interconnected with said resecting member to provide an axial depth selection of said resecting member; and a fixable sleeve operably interconnected with said depth guide, such that said depth guide operably engages said sleeve to select a depth of said resecting member relative to said positioning member; wherein said resecting member is rotatable around said positioning member to at least one position relative to said positioning member, and wherein said resecting member adjustably positions at a first angle relative to an axis of said positioning member in said first position and at a second angle relative to said axis of said positioning member in said second position and wherein said first position is distinct from said second position and said first angle is distinct from said second angle. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A resection assembly to allow resection of a selected bone portion, comprising:
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a positioning rod adapted to be disposed within the selected bone portion through an incision formed relative to the selected bone portion; a reamer guide portion moveable relative to said positioning rod and adjustably securable in at least a first position enabling resection of a first portion of the bone and a second position enabling resection of a second portion of the bone; a resecting tool movably coupled to said positioning rod and rotatable about a resecting axis, said resecting tool guided by said reamer guide portion such that a selected portion of the selected bone portion is resected; a spacer adapted to be disposed between the bone portion and said reamer guide portion during resection and operable to limit said translation of said resecting tool during resection; and a depth guide assembly operable between said reamer guide portion and said resecting tool to select an axial movement of said resecting tool, said depth guide assembly including a depth guide and a sleeve selectively engaged to said resecting tool, wherein said depth guide is movable along said resecting tool to engage said sleeve and limit a depth of cut of said resecting tool; wherein said positioning rod and said resecting tool are passed through the incision. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification