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US 7,137,322 B2Granted
Screw holder
AssigneeSynthes USA, LLC
InventorsRomano Mark, Philipp Büscher
Life of this patent
Estimating the term…
Abstract
A screw holder for securing a screw having a longitudinal shank and a central axis, a spindle adjoining the front end of the shank and having a bore therethrough flush with a groove, configured and dimensioned for receiving an elastic component to secure a screw into a steady position while turning the screw in or out.
Claims8
A device for securing a screw comprising:
- a longitudinal shank having a central axis and rear and front ends;
- a spindle, located at the front end of the longitudinal shank and concentric to the central axis, having front and rear ends, a substantially polygonal-shaped cross-section with a plurality of rounded edges and a plurality of concave side surfaces, a groove substantially parallel to the central axis, and a borehole coextensive with the groove;
- and
- a spring wire having top and bottom portions, and a bend positioned between the top and bottom portions, wherein the bottom portion is inserted into the borehole and the top portion is inserted into the groove and has a free end,
- wherein the top portion projects transversely away from the central axis such that the free end of the top portion distal to the bend is further away from the central axis than any other portion of the top portion when the spring wire is unstressed, the spindle being received into a screwhead aperture of the screw so that the top portion of the spring wire secures the screw in position, and wherein the groove and the borehole are flush with one of the plurality of rounded edges and one of the plurality of concave side surfaces.
2 more elements
Dependencies are inferred from the claim text.