RECEIVING PART FOR RECEIVING A ROD FOR COUPLING THE ROD TO A BONE ANCHORING ELEMENT AND A BONE ANCHORING DEVICE WITH SUCH A RECEIVING PART
First Claim
1. A receiving part for receiving a rod for coupling the rod to a bone anchoring element, the receiving part comprising:
- a receiving part body having a channel for receiving a rod and defining an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening for inserting the head; and
a pressure element at least partially in the accommodation space, the pressure element comprising a first portion having a recess to receive the rod, and a second portion having a flexible portion to clamp the head,wherein the pressure element is moveable along a longitudinal axis of the receiving part body from an inserting position to insert the head, to a pre-locking position to clamp the head in the receiving part by a pre-stress exerted by the pressure element, to a locking position to lock the head in the receiving part.
2 Assignments
0 Petitions
Accused Products
Abstract
A receiving part for receiving a rod for coupling the rod to a bone anchoring element, the receiving part including: a receiving part body having a channel for receiving a rod and defining an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening for inserting the head; and a pressure element at least partially in the accommodation space, the pressure element including a first portion having a recess to receive the rod, and a second portion having a flexible portion to clamp the head, wherein the pressure element is moveable along a longitudinal axis of the receiving part body from an inserting position to insert the head, to a pre-locking position to clamp the head in the receiving part by a pre-stress exerted by the pressure element, to a locking position to lock the head in the receiving part.
218 Citations
30 Claims
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1. A receiving part for receiving a rod for coupling the rod to a bone anchoring element, the receiving part comprising:
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a receiving part body having a channel for receiving a rod and defining an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening for inserting the head; and a pressure element at least partially in the accommodation space, the pressure element comprising a first portion having a recess to receive the rod, and a second portion having a flexible portion to clamp the head, wherein the pressure element is moveable along a longitudinal axis of the receiving part body from an inserting position to insert the head, to a pre-locking position to clamp the head in the receiving part by a pre-stress exerted by the pressure element, to a locking position to lock the head in the receiving part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A bone anchoring device comprising:
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a bone anchoring element having a shaft and a head; and a receiving part for receiving a rod for coupling the rod to the bone anchoring element, the receiving part comprising; a receiving part body having a channel for receiving the rod and defining an accommodation space for accommodating the head of the bone anchoring element, the accommodation space having an opening for inserting the head; and a pressure element at least partially in the accommodation space, the pressure element comprising a first portion having a recess to receive the rod, and a second portion having a flexible portion to clamp the head, wherein the pressure element is moveable along a longitudinal axis of the receiving part body from an inserting position to insert the head, to a pre-locking position to clamp the head in the receiving part by the pre-stress exerted by the pressure element on the head, to a locking position to lock the head in the receiving part. - View Dependent Claims (26, 27, 28, 29)
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30. A receiving part for receiving a rod for coupling the rod to a bone anchoring element, the receiving part comprising:
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a receiving part body having a channel at a first end for receiving a rod, and defining an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening at a second end of the receiving part body opposite the first end; and a pressure element configured to be located at least partially in the receiving part body, the pressure element comprising a first portion having a recess alignable with the channel, and a second portion having a flexible portion with a hollow section and an opening and positionable at least partially in the accommodation space, wherein the pressure element is moveable along a longitudinal axis of the receiving part body from an inserting position wherein the flexible portion is in the accommodation space and spaced apart from an inner wall of the receiving part body, to a pre-locking position wherein the inner wall of the receiving part body exerts a first compressive force on the flexible portion, to a locking position wherein the inner wall of the receiving part body exerts a second compressive force greater than the first compressive force on the flexible portion.
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Specification