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US 12,121,275 B2Granted
Bone anchoring screws provided with a plurality of socket types
AssigneeAbys Medical
InventorsArnaud Destainville, Olivier Richart
Life of this patent
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Abstract
A bone anchoring screw comprises a head, a shaft and a threaded portion arranged successively along a common axis, the head having a recess comprising at least two stages arranged in succession along the common axis, the first stage having a diameter larger than the diameter of the second stage, in which one of the two stages comprises at least one socket of a first type and the other of the two stages comprises at least one socket of the first type and one other type.
Claims18
A bone anchoring screw, comprising:
- a head;
- a shaft;
- and
- a threaded portion;
- wherein the head, the shaft, and the threaded portion are arranged successively along a common axis, the head has a recess comprising at least a first stage, a second stage, and an intermediate stage between the first stage and the second stage, the first stage, intermediate stage, and second stage arranged in succession along the common axis, the first stage having a diameter larger than a diameter of the second stage, and one stage of the first and second stages comprises at least one socket of a first type and another stage of the first and second stages comprises at least one socket of the first type and at least one socket of another type, further comprising an intermediate stage between the first stage and the second stage.
2 more elements
A bone anchoring screw, comprising:
- a head;
- a shaft;
- and
- a threaded portion;
- wherein the head, the shaft, and the threaded portion are arranged successively along a common axis, the head has a recess comprising at least two stages arranged in succession along the common axis, a first stage of the at least two stages has a diameter larger than a diameter of a second stage of the at least two stages, and one stage of the at least two stages comprises at least one socket of a first type and another stage of the at least two stages comprises at least one socket of the first type and at least one socket of another type, and wherein at least one of the sockets of one stage of the at least two stages can be obtained by homothety of at least one of the sockets of another stage of the at least two stages or obtained by homothety and rotation of at least one of the sockets of the another stage.
2 more elements
A bone anchoring screw, comprising:
- a head;
- a shaft;
- and
- a threaded portion;
- wherein the head, the shaft, and the threaded portion are arranged successively along a common axis, the head has a recess comprising at least two stages arranged in succession along the common axis, a first stage of the at least two stages has a diameter larger than a diameter of a second stage of the at least two stages, and one stage of the at least two stages comprises at least one socket of a first type and another stage of the at least two stages comprises at least one socket of the first type and at least one socket of another type, and wherein, in the another stage, the at least one socket of the first type and the at least one socket of the another type are, respectively, a six-lobed socket and a hexagon socket head cap, or the at least one socket of the first type and the at least one socket of the another type are, respectively, a hexagon socket head cap and a six-lobed socket.
2 more elements
Dependencies are inferred from the claim text.