Apparatus for securing a therapy delivery device within a burr hole

An apparatus for anchoring a therapy delivery device, the apparatus comprising:

• a base operable to seat in or near a burr hole, the base comprising:
• a peripheral portion at least partially surrounding a central opening, the peripheral portion defining a flange portion having an outer diameter larger than the burr hole such that the flange portion is configured to rest upon a cranial surface surrounding the burr hole;
• and a ring-shaped engagement portion for receipt within the burr hole when the flange portion rests upon the cranial surface;
• and
• a disk-shaped stabilizer to seat within the central opening, the stabilizer comprising a peripheral edge and opposing first and second inner surfaces that define a radial slot extending outwardly through the peripheral edge of the stabilizer, the first inner surface comprising a movable, cantilevered arm having a free end, the arm lockable in a first position corresponding to the first inner surface being substantially parallel to, and spaced-apart from, the second inner surface, wherein, when the arm is locked in the first position, the first and second inner surfaces are positioned to frictionally engage a catheter passing orthogonally between the first and second inner surfaces at any location along a length of the slot, the first and second inner surfaces configured to frictionally engage the catheter without occluding catheter flow, and wherein the free end of the arm comprises a ball portion operable to interlock with a socket portion of the stabilizer when the arm is in the first position.