摘要:
A bio-compatible stabilization system includes one or more inserters and a connector for traversing a space between one or more bony structures. The stabilization system is designed to reduce or eliminate stress shielding effects while functioning as a tension band. The elastic properties of the connector can be selected and set on a per-patient basis to allow variance in range of motion and to tailor the connector to the particulars of a patient, i.e., age, gender, weight, height, condition, and the like.
摘要:
Anchors to secure a rod to a vertebral member. The anchors may include a fastener with a distal end adapted to be connected to the vertebral member and a proximal end. A receiver may be operatively connected to the proximal end of the fastener. The receiver may include a channel sized to receive the rod. The receiver may further include at least one convex section that extends inward towards a longitudinal axis of the rod. The receiver may be formed in a unitary one-piece construction. The anchor may also include a securing member that connects to the receiver and may include a lower edge that extends into the channel and may contact the rod.
摘要:
A spinal system comprising a spinal rod with an outer wall, a proximal end, a distal end, and a first axis extending centrally through the spinal rod between the proximal and the distal ends. The spinal rod comprises a first region having a first modulus of elasticity, a second region having a second modulus of elasticity different from the first modulus of elasticity, and a third region between the first and second region having a modulus gradation ranging from the first modulus of elasticity to the second modulus of elasticity.
摘要:
Spinal support members having varying stiffnesses are disclosed. In one embodiment, an elongated spinal prosthetic includes a pair of curved elongated portions. The portions are formed of materials having different stiffness characteristics such that the stiffness of the prosthetic varies along its length. In another embodiment, an elongated spinal implant includes a pair of threadedly engaged elongated sections. The first section is formed of a first material having a first rigidity. The second section has an inner portion formed of the first material and an outer portion formed of a second material. The second material is less rigid than the first material. In another embodiment, a modular spinal rod is provided. The modular spinal rod includes a pair of connectable rod portions with different stiffness characteristics. In yet another embodiment, a kit for a modular spinal rod includes a plurality of connectable modular rod portions having different stiffness characteristics.
摘要:
Spinal support members having varying stiffnesses are disclosed. In one embodiment, an elongated spinal prosthetic includes a pair of curved elongated portions. The portions are formed of materials having different stiffness characteristics such that the stiffness of the prosthetic varies along its length. In another embodiment, an elongated spinal implant includes a pair of threadedly engaged elongated sections. The first section is formed of a first material having a first rigidity. The second section has an inner portion formed of the first material and an outer portion formed of a second material. The second material is less rigid than the first material. In another embodiment, a modular spinal rod is provided. The modular spinal rod includes a pair of connectable rod portions with different stiffness characteristics. In yet another embodiment, a kit for a modular spinal rod includes a plurality of connectable modular rod portions having different stiffness characteristics.
摘要:
A bone anchor compatible for use with a neural integrity monitoring system. The bone anchor includes a bone engaging portion configured for anchoring to bone and has at least one insulated region coated with a bone growth promoting material and at least one conductive region contiguous with the insulated region and having reduced electrical resistance relative to the insulated region.
摘要:
The present application is directed to set screws used with fasteners to capture and engage an elongated member. The set screws include a body sized to attach to a receiver of the fastener. A deformable member may be attached to an end of the set screw and provides for the set screw to more fully engage the elongated member to prevent potential damage to the elongated member and prevent the set screw from backing out of the fastener. In one embodiment, just the deformable member contacts the elongated member. In another embodiment, the deformable member and the body contact the elongated member. In yet another embodiment, a contact member is attached to the deformable member to contact against the elongated member.
摘要:
The present application is directed to guides for inserting an elongated member into a patient. The guide generally includes an elongated shape with a distal end that is positioned within the patient, and a proximal end that may be positioned outside of the patient. The guide may include a channel formed between sidewalls. The channel is sized to receive the elongated member and guide the member into a predetermined location within the patient. In one embodiment, the guide is used with an insertion device that may include a pivoting carriage for initially inserting the guide and then the elongated member into the patient. The guide may also be used in a freehand technique that is positioned specifically within the patient by the surgeon.
摘要:
An implantable article for use with an anchor and a non-metal rod assembly includes a ring having a body including an outer surface, an inner surface defining an aperture extending through the body configured to engage a non-metal rod. The ring body further includes protrusions extending from the inner surface into the aperture, wherein the protrusions are spaced apart from each other axially and circumferentially along the inner surface.
摘要:
A locking device employing a break away interface member rigidly coupled to a seating member for use in securing a stabilization member within a bone stabilization system. The bone stabilization system includes a bone anchor, a stabilization member, a coupling mechanism and a locking device. The locking device is structured to engage the coupling mechanism and the coupling mechanism is configured to couple the stabilization member to the bone anchor. The locking device, which is configured to thread into the coupling mechanism, includes an interface member rigidly connected to the seating member. The interface member breaks away from the seating member at a break-off junction to drop into contact with the stabilization member and to secure the stabilization member in the coupling mechanism following continued engagement of the seating member into the coupling mechanism.