Bone screw
AssigneeBiedermann Motech GmbH
InventorsLutz Biedermann, Jürgen Harms
Life of this patent
Estimating the term…
Abstract
A bone screw having a screw member possessing a threaded section and a head and a receiving part at the head end for receiving a rod to be connected to the bone screw is provided. The receiving part has on open first bore and a substantially U-shaped cross-section having two free legs provided with a thread. Furthermore, the receiving part has a second bore on the end opposite to the first bore whose diameter is greater than that of the threaded section and smaller than that of the head. On the bottom of the first bore a seat for the head is provided. In order that the screw member can be pivoted to at least one side by an enlarged angle, the edge bounding the free end of the second bore viewed relative to the axis of the first bore is of asymmetric construction.
Claims24
A method of stabilizing bone comprising:
- providing a coupling element having first and second bore sections that are angled relative to one another, said coupling element having rod-receiving openings for receiving an elongated member;
- assembling said coupling element with an anchoring element;
- after the assembling step, securing said anchoring element in bone;
- moving said coupling element relative to said anchoring element to align said rod-receiving openings with said elongated member;
- securing said elongated member in said rod-receiving openings;
- and
- after the securing step, locking said coupling element from further movement relative to said anchoring element.
A method of stabilizing a spine, comprising:
- providing a coupling element having a first bore coaxial with a first longitudinal axis and extending through a first bore section of said coupling element and a second bore coaxial with a second longitudinal axis and extending through a second bore section of said coupling element, wherein said first and second longitudinal axes are transverse to one another;
- assembling said coupling element with an anchoring element;
- and
- after the assembling step, securing said anchoring element in bone.
A method of stabilizing a spine comprising:
- providing a coupling element having an uppermost end defining a first plane, a lowermost end defining a second plane, and at least one bore extending from said uppermost end toward said lowermost end, wherein said first and second planes intersect one another;
- assembling said coupling element with an anchoring element;
- after the assembling step, securing said anchoring element in bone.
A method of stabilizing a spine, comprising:
- providing a coupling element having a first bore coaxial with a first longitudinal axis and a second bore coaxial with a second longitudinal axis, wherein said first and second longitudinal axes are transverse to one another and wherein said first and second bores are within an integral portion of said coupling element;
- assembling said coupling element with an anchoring element having a head wherein a seat of said coupling element is adapted to contact an underside of said head, and wherein at least a portion of said anchoring element is capable of passing though both first and second bores;
- and
- after the assembling step, securing said anchoring element in bone.
Dependencies are inferred from the claim text.