Surgical instrument and positioning method
DCFirst Claim
1. A surgical instrument for use with an anatomical structure, said instrument comprising:
- an anchoring member having a first portion securable to the anatomical structure;
an implement portion, wherein said implement portion is selectively translatable along three substantially mutually perpendicular translational axes and said implement portion is selectively rotatable relative to said anchoring member about at least two substantially perpendicular rotational axes;
at least one translational securement member for positively securing said implement portion in a selected translational position along one of said translational axes; and
at least one rotational securement member for positively securing said implement portion in a selected rotational position about one of said rotational axes.
2 Assignments
Litigations
1 Petition
Accused Products
Abstract
A surgical instrument having an anchoring member securable to an anatomical structure and an implement portion which is adjustably repositionable relative to the anchoring member. The implement portion is selectively translatably adjustable and selectively rotatably adjustable relative to the anchoring member. The implement portion may be selectively translatable along and/or selectively rotatable about at least two substantially perpendicular axes. The implement portion may be selectively translatable about three substantially perpendicular axes and/or selectively rotatable about three substantially perpendicular axes. The instrument may also include at least one reference element to facilitate the registration of the implement portion in a computer implemented guidance system. The reference element may be three non-linearly positioned elements disposed on a member which is removably mounted to the instrument. The implement portion may be a resection guide and the instrument may be used in the resection of a tibia when implanting a prosthetic knee joint.
268 Citations
21 Claims
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1. A surgical instrument for use with an anatomical structure, said instrument comprising:
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an anchoring member having a first portion securable to the anatomical structure; an implement portion, wherein said implement portion is selectively translatable along three substantially mutually perpendicular translational axes and said implement portion is selectively rotatable relative to said anchoring member about at least two substantially perpendicular rotational axes; at least one translational securement member for positively securing said implement portion in a selected translational position along one of said translational axes; and at least one rotational securement member for positively securing said implement portion in a selected rotational position about one of said rotational axes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical instrument for use with an anatomical structure, said instrument comprising:
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an anchoring member having a first portion securable to the anatomical structure; an implement portion, said implement portion being selectively translatably adjustable and selectively rotatably adjustable relative to said anchoring member; and at least one reference element registerable in a computer implemented image guidance system wherein said at least one reference element is moved relative to said anchoring member by movement of said implement portion relative to said anchoring member; wherein said implement portion is selectively translatable along three substantially mutually perpendicular translational axes and said implement portion is selectively rotatable about three substantially mutually perpendicular rotational axes. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A surgical instrument for resecting a tibia, said instrument comprising:
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a fastener selectively secured to the tibia; a resection guide, said resection guide being selectively translatable relative to said fastener and selectively rotatable relative to said fastener; and at least one reference element registerable in a computer implemented image guidance system, said at least one reference element mounted in a predetermined orientation relative to said resection guide. - View Dependent Claims (19, 20, 21)
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Specification