Back to results
US 2024/0252218 A1Published application
Telescoping Screw Head with Retention Feature
AssigneeStryker European Operations Limited
InventorsMatthias Bartsch, Tobias Boehm
Life of this patent
Estimating the term…
Abstract
The present application relates to a bone fixation apparatus comprising a shaft portion, a head portion, and a spring. The shaft portion includes bone engaging threads. The head portion is associated with the shaft portion such that the head portion can move with respect to the shaft portion. The spring provides a force on both the shaft portion and the head portion and is enclosed between the head portion and the shaft portion.
Claims20
A bone fixation apparatus comprising:
- a shaft portion including bone engaging threads,
- a head portion associated with the shaft portion such that the head portion can move with respect to the shaft portion, and
- a spring providing a force on both the shaft portion and the head portion, the spring being enclosed between the head portion and the shaft portion.
A surgical method comprising,
- inserting a shaft portion of a bone fixation apparatus into a bone, and
- causing a head portion of a head the bone fixation apparatus to move with respect to the shaft portion,
- wherein axial tension is generated between the head portion and the shaft portion via a spring enclosed between the head portion and the shaft portion.
A method of assembling a bone fixture apparatus, the method comprising,
- attaching a first side of a spring to a plate,
- attaching a second side of the spring to a lower segment of a head portion, and
- inserting the plate, the spring, and the lower portion of the head portion into a cavity of a shaft portion.
Dependencies are inferred from the claim text.