Methods and apparatus for securing a therapy delivery device within a burr hole
First Claim
1. An apparatus for anchoring a therapy delivery device relative to a burr hole, the apparatus comprising:
- a base operable to seat in or near the burr hole, the base comprising a peripheral portion at least partially surrounding a central opening; and
a stabilizer positionable within the central opening, the stabilizer comprising a peripheral edge and opposing first and second inner surfaces, the first and second inner surfaces defining a slot extending though the peripheral edge of the stabilizer, wherein the first inner surface comprises a cantilevered, movable arm having a free end, the movable arm biased towards a first position, wherein the movable arm is configured to press the delivery device against the second inner surface at most any location along a length of the slot, the movable arm further operable to deflect to a second position, wherein a distance between the first and second inner surfaces is greater when the movable arm is in the second position than when the movable arm is in the first position, the stabilizer further comprising a lock portion to secure the movable arm in the second position, the lock portion comprising a tab operable to selectively contact the free end and lock the movable arm in the second position.
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Accused Products
Abstract
Apparatus and methods for securing a therapy delivery device relative to a burr hole. In one embodiment, the apparatus includes a base that is securable to bone, without the use of fasteners, either before or after insertion of the therapy delivery device into the burr hole. The apparatus may further include a stabilizer that may be engaged with both the base and the therapy delivery device while the delivery device is held with positioning apparatus. The base and/or stabilizer may frictionally engage the delivery device, e.g., receive it with interference, to secure the device in two or more non-parallel directions. In some embodiments, at least the stabilizer may include a surface coating or treatment operable to enhance frictional engagement with the therapy delivery device.
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Citations
29 Claims
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1. An apparatus for anchoring a therapy delivery device relative to a burr hole, the apparatus comprising:
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a base operable to seat in or near the burr hole, the base comprising a peripheral portion at least partially surrounding a central opening; and a stabilizer positionable within the central opening, the stabilizer comprising a peripheral edge and opposing first and second inner surfaces, the first and second inner surfaces defining a slot extending though the peripheral edge of the stabilizer, wherein the first inner surface comprises a cantilevered, movable arm having a free end, the movable arm biased towards a first position, wherein the movable arm is configured to press the delivery device against the second inner surface at most any location along a length of the slot, the movable arm further operable to deflect to a second position, wherein a distance between the first and second inner surfaces is greater when the movable arm is in the second position than when the movable arm is in the first position, the stabilizer further comprising a lock portion to secure the movable arm in the second position, the lock portion comprising a tab operable to selectively contact the free end and lock the movable arm in the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An apparatus for anchoring a therapy delivery device relative to a burr hole, the apparatus comprising:
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a base operable to seat in or near the burr hole, the base comprising a peripheral portion at least partially surrounding a central opening; and a stabilizer positionable within the central opening, the stabilizer comprising a peripheral edge and opposing first and second inner surfaces, the first and second inner surfaces defining a slot extending through the peripheral edge of the stabilizer, the first inner surface comprising a cantilevered arm biased towards a first position, wherein the first inner surface is parallel to the second inner surface, the movable arm further operable to deflect to a second position, wherein a distance between the first and second inner surfaces is greater when the arm is in the second position than when the arm is in the first position, the stabilizer further comprising a tab to selectively engage a free end of the arm and hold the arm in the second position. - View Dependent Claims (29)
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Specification