Patent ID: 11964147
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A system comprising:
a cranial implant comprising:
an arcuate interior guide portion configured to be disposed in a burr hole of a cranium, the arcuate interior guide portion comprising a distal end, a proximal end, an inner surface, and an outer surface, the distal end configured to be inserted further into the burr hole than the proximal end, and the inner surface at least partially defines a first channel configured to accept an elongated member, wherein the outer surface is configured to extend from a first end to a second end around less than a full circumference of the burr hole thereby defining a circumferential gap between the first end and the second end, and wherein for the inner surface and the outer surface to meet at each of the first end and the second end, a distance between the inner surface and the outer surface gradually decreases; and
an exterior guide portion defining an exterior facing surface and an inward facing surface, the exterior guide portion extending from the arcuate interior guide portion and configured to contact an external surface of the cranium with the inward facing surface, the exterior guide portion defining a second channel configured to accept the elongated member, wherein the exterior guide portion comprises one or more flanges coupled to the exterior guide portion and wherein each of the one or more flange structures define a top surface continuous with the exterior facing surface and a bottom surface; and the bottom surface of the one or more flange structures are configured to retain the elongated member at least partially within the second channel; and
a fixation device comprising:
a recess that accepts the exterior guide portion; and
a third channel on an underside of the fixation device configured to accept a portion of the elongated member extending out from the second channel,
wherein the fixation device is configured to contact the external surface of the cranium.