Device for fixing a bony structure to a support member
AssigneeLDR Medical
InventorGeorges Legallois
Life of this patent
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Abstract
Device for fixing a bony structure to a support member, the device comprising a first connecting member which comprises: a main body provided with a first passage configured for receiving the support member, and with a first opening configured for passing a flexible member therethrough; and a rod fixed to and/or monobloc with the main body and protruding therefrom. The device further comprises a first flexible member passing through the first opening of the main body and extending beyond the main body for attachment to the bony structure.
Claims19
A method for preventing fatigue phenomena in a spinal structure, the method comprising:
- implanting a first bone anchor at a first location of the spinal structure to provide a rigid bone connection;
- attaching the first bone anchor to a rod extending from a first connecting member;
- attaching a support member to the first connecting member such that the support member is generally parallel to the rod, wherein the first connecting member has a first passage extending therethrough configured to receive a first portion of the support member, and wherein the first passage is offset from the rod;
- attaching a first flexible member to the first connecting member, wherein the first flexible member is attached to the spinal structure at a second location and extends through a pair of openings formed in the first connecting member, and wherein the pair of openings communicate with the first passage;
- attaching a second flexible member at a third location of the spinal structure, wherein the second flexible member is attached to a second connecting member;
- implanting a second bone anchor at a fourth location of the spinal structure, wherein the second bone anchor is attached to the support member via the second connecting member;
- and
- tensioning the first flexible member at the second location of the spinal structure to provide additional stability to the spinal structure.
A system for supporting a spinal structure, the system comprising:
- a rigid fixation system comprising:
- a support member;
- and
- a first bone fastener configured to rigidly couple the support member to the spinal structure;
- and
- a first elastic fixation system comprising:
- a first clamp mechanism including a first connecting member configured to attach to the support member via a support member passage formed through the first connecting member and configured to attach to the first bone fastener via a rod extending from the first connecting member and offset from the support member passage;
- wherein when the support member is secured to the support member passage, the support member is generally parallel to the rod;
- and
- a first flexible member inserted through an opening in the first connecting member having a communication with the support member passage and configured to elastically couple the first connecting member of the first clamp mechanism to the spinal structure, wherein one or more of the following is true:
- (a) the support member is coupled to the first bone fastener through the first clamp mechanism, and
- (b) the first clamp mechanism is configured to attach to an end of the support member.
Dependencies are inferred from the claim text.