Patent ID: 11857236
Assignee: RETROFIX SCREWS, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. A surgical kit, comprising:
(A) an orthopedic screw comprising:
(i) a unitary shaft extending from a first, distal end to a second, proximal end;
(ii) screw threads comprising a first threaded alignment and having a diameter and formed on the first, distal end, a terminal end portion of the screw threads including an end edge adapted to facilitate passage of the screw through one or more bone segments at a fracture site;
(iii) an unthreaded shank having a diameter less than the diameter of the screw threads;
(iv) a head positioned on the second, proximal end integrally-formed to the shank and having a diameter greater than the diameter of the screw threads and the shank; and
(v) an enlarged terminal end segment of the head including:
(1) a socket for receiving a tool adapted for rotating the screw into the one or more bone segments at the fracture site; and
(2) a threaded cannula portion centrally located at a focus point of the enlarged terminal end segment and extending along a cannula for at least a portion of a length of the head, the threaded cannula portion comprising a second threaded alignment opposite the first threaded alignment of the screw threads and configured to receive an instrument head; and

(B) the instrument head adapted for rotating the implanted orthopedic screw for removal and comprising an instrument shaft extending from a threaded end to a tang end, wherein threads of the threaded end are configured to correspond to threads of the threaded cannula portion, and wherein a tang of the tang end comprises a notched head configured to fit into a driving device socket of a driving device.