System and method for accessing bone for coring

摘要

Disclosed is a bone coring device having a handle including a first handle component and a second handle component. The first handle component is rotatably coupled to the second handle component. The device also includes a coring assembly mechanically coupled to the handle. The coring assembly includes an elongated outer cutting member having an internal bore and distal edge adapted to cut through cancellous bone. The coring assembly also includes an elongated inner member slidably positioned within the internal bore of the outer cutting member. Rotatable movement of the first handle component relative to the second handle component causes relative, linear movement between the elongated outer cutting member and the inner member to facilitate coring of a sample of bone when the coring assembly is positioned within the bone.

主权项

1. A bone coring device, comprising:
a handle including a first handle component and a second handle component, the first handle component being rotatably coupled to the second handle component, and wherein the second handle component includes a tubular coupling region that rotatably fits within the first handle component, the coupling region having a linkage feature that slidably mates with a corresponding coupling component of the first handle component; a coring assembly mechanically coupled to the handle, the coring assembly including: (a) an elongated outer cutting member attached to the second handle component and having an internal bore and distal edge adapted to cut through cancellous bone; (b) an elongated inner member attached to a cap that is positioned adjacent a proximal end of the first handle component, the elongated inner member being slidably positioned within the internal bore of the outer cutting member; wherein rotatable movement of the first handle component relative to the second handle component and interaction of the linkage feature with the coupling component causes relative, linear movement between the first handle component and the second handle component, which results in the elongate inner member and the elongate outer cutting member not rotating relative to one another, as well as linear movement of the elongated inner member relative to the elongated outer cutting member to facilitate coring of a sample of bone when the coring assembly is positioned within the bone.