Device for immobilizing a primary instrument and method therefor
First Claim
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1. A device for immobilizing a primary instrument, comprising:
- a base plate;
a stabilizer plate configured to engage the instrument, the stabilizer plate being configured to rest on the base plate and including at least one variable opening surrounded by an integrally formed male protuberance, the male protuberance extending along an axis orthogonal to the stabilizer plate and the stabilizer plate extending transverse to the axis beyond the male protuberance, the male protuberance being sized and shaped to at least partially surround the instrument and allow passage of the instrument when normally relaxed and to immobilize the instrument when compressed inwardly toward the instrument; and
an upper plate that is relatively more rigid than the stabilizer plate, the upper plate being configured to rest on the stabilizer plate and comprising a female receptacle formed therein complementary to the normally relaxed size and shape of each male protuberance of the stabilizer plate, yet shaped and sized to compress the at least one variable opening inwardly via the male protuberance upon compression of the upper plate and the stabilizer plate together.
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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.
338 Citations
18 Claims
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1. A device for immobilizing a primary instrument, comprising:
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a base plate; a stabilizer plate configured to engage the instrument, the stabilizer plate being configured to rest on the base plate and including at least one variable opening surrounded by an integrally formed male protuberance, the male protuberance extending along an axis orthogonal to the stabilizer plate and the stabilizer plate extending transverse to the axis beyond the male protuberance, the male protuberance being sized and shaped to at least partially surround the instrument and allow passage of the instrument when normally relaxed and to immobilize the instrument when compressed inwardly toward the instrument; and an upper plate that is relatively more rigid than the stabilizer plate, the upper plate being configured to rest on the stabilizer plate and comprising a female receptacle formed therein complementary to the normally relaxed size and shape of each male protuberance of the stabilizer plate, yet shaped and sized to compress the at least one variable opening inwardly via the male protuberance upon compression of the upper plate and the stabilizer plate together. - View Dependent Claims (2, 3, 4)
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5. A device for immobilizing a primary instrument, comprising:
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a base; a stabilizer configured to engage the instrument, the stabilizer being configured to rest on the base and including at least one variable opening sized and shaped to at least partially surround the instrument and allow passage of the instrument when normally relaxed and to immobilize the instrument when compressed inwardly toward the instrument; and a plate that is relatively more rigid than the stabilizer, the plate being configured to rest on the stabilizer and comprising a feature complementary to the normally relaxed size and shape of each variable opening of the stabilizer, yet shaped and sized to compress the at least one variable opening inwardly upon compression of the plate and the stabilizer together; wherein the stabilizer includes at least two variable openings, and the plate includes at least two openings corresponding to the variable openings of the stabilizer. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method, comprising:
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providing an immobilizing device with a base, a stabilizer plate configured to rest on the base and an upper plate configured to rest on the stabilizer plate; securing the immobilizing device around an entry portal in a surface; passing an instrument at least partially through one of at least two variable openings in the stabilizer plate; and inwardly compressing each of the variable openings with the upper plate such that the one of the at least two variable openings is compressed inwardly toward the instrument to immobilize the instrument. - View Dependent Claims (12, 13, 14, 15)
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16. A device having at least two openings for immobilizing a primary instrument, comprising:
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means for securing the device around an entry portal in a surface; and means for varying the at least two openings in the device to at least partially surround the instrument when the instrument is positioned in one of the two openings and allow passage of the instrument when the openings are normally relaxed and to immobilize the instrument when the openings are compressed inwardly toward the instrument. - View Dependent Claims (17, 18)
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Specification