Fluoroscopic locator and registration device
First Claim
Patent Images
1. A vertebral registration device, comprising:
- a connector adapted to connect to an identification superstructure that is used for location identification during surgery; and
a vertebral engagement portion coupled to the connector, the vertebral engagement portion being adapted to expand from a compact configuration to an expanded configuration to secure the vertebral engagement portion in a disc space between adjacent vertebrae, the vertebral engagement portion when in the compact configuration being able to fit into the disc space, the vertebral engagement portion when in the expanded configuration inside the disc space engages the adjacent vertebrae;
wherein the connector includesan enlarged end portion having a plurality of radially oriented ridges,a coupling member defining a first hole extending along a first axis, the coupling member having a first set of ridges radially oriented around the first hole,a fastener received in the first hole to mate the first set of ridges of the coupling member with the ridges on the enlarged end portion in an interdigiting fashion and to allow rotational repositioning the coupling member relative to the enlarged end portion, andthe coupling member defining a second hole extending along a second axis that is orthogonal to the first axis, the coupling member having a second set of ridges radially oriented around the second hole, the second set of ridges being constructed and arranged to mate in an interdigiting fashion with ridges on the identification superstructure.
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Accused Products
Abstract
A registration device is used to couple an identification superstructure of a surgical navigation system to the spinal column. The registration device includes a pair of vertebral engaging members positionable in a spinal disc space. At least one of the vertebrae engaging members moves outwardly from a collapsed position to engage the registration device to the endplates of the adjacent vertebrae.
197 Citations
30 Claims
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1. A vertebral registration device, comprising:
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a connector adapted to connect to an identification superstructure that is used for location identification during surgery; and a vertebral engagement portion coupled to the connector, the vertebral engagement portion being adapted to expand from a compact configuration to an expanded configuration to secure the vertebral engagement portion in a disc space between adjacent vertebrae, the vertebral engagement portion when in the compact configuration being able to fit into the disc space, the vertebral engagement portion when in the expanded configuration inside the disc space engages the adjacent vertebrae; wherein the connector includes an enlarged end portion having a plurality of radially oriented ridges, a coupling member defining a first hole extending along a first axis, the coupling member having a first set of ridges radially oriented around the first hole, a fastener received in the first hole to mate the first set of ridges of the coupling member with the ridges on the enlarged end portion in an interdigiting fashion and to allow rotational repositioning the coupling member relative to the enlarged end portion, and the coupling member defining a second hole extending along a second axis that is orthogonal to the first axis, the coupling member having a second set of ridges radially oriented around the second hole, the second set of ridges being constructed and arranged to mate in an interdigiting fashion with ridges on the identification superstructure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of securing a registration device for fluoroscopic registration of a spinal column, comprising:
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inserting a vertebral engagement portion of the registration device between endplates of adjacent vertebrae in the spinal column; expanding the vertebral engagement portion between the adjacent vertebrae to engage the vertebral engagement portion with the endplates; wherein said expanding includes sliding a moveable first member in the registration device away from a fixed second member in the registration device; and coupling a location identification superstructure to a connector on the registration device. - View Dependent Claims (24, 25)
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26. A vertebral registration device, comprising:
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a connector adapted to connect to an identification superstructure that is used for location identification during surgery; and a vertebral engagement portion coupled to the connector, the vertebral engagement portion being adapted to expand from a compact configuration to an expanded configuration to secure the vertebral engagement portion in a disc space between adjacent vertebrae, the vertebral engagement portion when in the compact configuration being able to fit into the disc space, the vertebral engagement portion when in the expanded configuration inside the disc space engages the adjacent vertebrae, wherein the vertebral engagement portion comprises; a first member; a second member, the first member being pivotally connected to the second member; a drive member positioned proximal the first member to pivot the first member to the expanded configuration, wherein the second member defines a receptacle sized to receive the first member; and wherein the first member is at least partially received within the receptacle when the vertebral engagement portion is in the compact configuration. - View Dependent Claims (27)
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28. A vertebral registration device, comprising:
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a connector adapted to connect to an identification superstructure that is used for location identification during surgery; a vertebral engagement portion coupled to the connector, the vertebral engagement portion being adapted to expand from a compact configuration to an expanded configuration to secure the vertebral engagement portion in a disc space between adjacent vertebrae, the vertebral engagement portion when in the compact configuration being able to fit into the disc space, the vertebral engagement portion when in the expanded configuration inside the disc space engages the adjacent vertebrae; and a shaft connecting the vertebral engagement portion to the connector, wherein the shaft includes a bend portion proximal the connector.
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29. A vertebral registration device, comprising:
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a connector adapted to connect to an identification superstructure that is used for location identification during surgery; a vertebral engagement portion coupled to the connector, the vertebral engagement portion being adapted to expand from a compact configuration to an expanded configuration to secure the vertebral engagement portion in a disc space between adjacent vertebrae, the vertebral engagement portion when in the compact configuration being able to fit into the disc space, the vertebral engagement portion when in the expanded configuration inside the disc space engages the adjacent vertebrae; wherein the vertebral engagement portion defines slots; wherein the vertebral engagement portion includes a moveable first member having flanges slidably received in the slots; a fixed second member defining a drive cavity; and a drive member slidably received in the drive cavity, the drive member having a ramp shaped surface contacting the first member to drive first member away from the second member to the expanded configuration. - View Dependent Claims (30)
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Specification