Device for immobilizing a primary instrument and method therefor
First Claim
Patent Images
1. A method for securing an instrument relative to a burr hole, comprising:
- positioning a base relative to the burr hole with a base positioning device, the base defining a central opening and an outer perimeter having a pair of attachment portions extending therefrom;
securing the base to a surface surrounding the burr hole with a pair of bone screws detachably retained to the base positioning device, each screw received in an aperture in one of the attachment portions;
engaging the bone screws with a screwdriver to secure the base to the surface surrounding the burr hole and to release the bone screws from the base positioning device upon tightening the bone screws to the base;
positioning a stabilizer relative to the base and the instrument, the stabilizer having a body defining a slot extending through the body and inward from an outer circumference of the body;
moving a clamping device moveable within the slot from an open position where the slot is at least substantially unobstructed by the clamping device to allow the instrument to pass into the slot to a closed position to secure the instrument relative to the base;
positioning the instrument into a radially extending slot formed in an upper surface of the base; and
attaching a cover to the base by attaching fingers extending from a perimeter of the cover to receptacles formed in the base such that the cover secures the instrument in the radially extending slot and in an opening formed in a cylindrically extending portion of the cover.
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Accused Products
Abstract
Devices and methods provide accurate targeting, placement, and/or stabilization of an electrode or other instrument(s) into the brain or other body organ, such as to treat severe tremor or other neurological disorders. Targeting is performed using any form of image-guidance, including real-time MRI, CT, or frameless surgical navigation systems.
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Citations
34 Claims
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1. A method for securing an instrument relative to a burr hole, comprising:
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positioning a base relative to the burr hole with a base positioning device, the base defining a central opening and an outer perimeter having a pair of attachment portions extending therefrom; securing the base to a surface surrounding the burr hole with a pair of bone screws detachably retained to the base positioning device, each screw received in an aperture in one of the attachment portions; engaging the bone screws with a screwdriver to secure the base to the surface surrounding the burr hole and to release the bone screws from the base positioning device upon tightening the bone screws to the base; positioning a stabilizer relative to the base and the instrument, the stabilizer having a body defining a slot extending through the body and inward from an outer circumference of the body; moving a clamping device moveable within the slot from an open position where the slot is at least substantially unobstructed by the clamping device to allow the instrument to pass into the slot to a closed position to secure the instrument relative to the base; positioning the instrument into a radially extending slot formed in an upper surface of the base; and attaching a cover to the base by attaching fingers extending from a perimeter of the cover to receptacles formed in the base such that the cover secures the instrument in the radially extending slot and in an opening formed in a cylindrically extending portion of the cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for securing an instrument relative to a burr hole, comprising:
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positioning a base relative to the burr hole with a base positioning device, the base defining a central opening and an outer perimeter having a pair of attachment portions extending therefrom; detachably positioning a pair of bone screws with the base positioning device, the bone screws configured to be received in the attachment portions extending from the outer perimeter of the base; securing the base to a surface surrounding the burr hole by engaging the bone screws with a screwdriver and driving the screws into the attachment portions to release the bone screws from the base positioning device upon tightening the bone screws to the base; positioning a stabilizer relative to the base and the instrument where the stabilizer includes a body defining a slot extending through the body and inward from an outer circumference of the body; moving a clamping device moveable within the slot from an opened position to a closed position to secure the instrument within the slot and relative to the base; and attaching a cover to the base to at least substantially cover the central opening and the burr hole. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for securing an instrument relative to a burr hole comprising:
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positioning a base relative to the burr hole with a base positioning device, the base defining a central opening and an outer perimeter having a pair of attachment portions extending therefrom; securing the base to a surface surrounding the burr hole with a pair of bone screws detachably retained to the base positioning device, each screw received in an aperture in one of the attachment portions; engaging the bone screws with a screwdriver to secure the base to the surface surrounding the burr hole and to release the bone screws from the base positioning device upon tightening the bone screws to the base; positioning a stabilizer relative to the base and the instrument, the stabilizer having a body defining a slot extending through the body and inward from an outer circumference of the body; moving a clamping device moveable within the slot with a tool from an open position where the slot is at least substantially unobstructed by the clamping device to allow the instrument to pass into the slot to a closed position where the clamping device substantially obstructs the slot so as to secure the instrument relative to the base; and attaching a cover to the base to at least substantially cover the central opening and the burr hole. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification