Apparatus for minimally invasive posterior correction of spinal deformity
AssigneeMuhammad Abubakar Atiq Durrani
InventorMuhammad Abubakar Atiq Durrani
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Abstract
An apparatus is operable to correct spinal deformities caused by scoliosis and the like. The apparatus may be used in a minimally invasive fashion and through the posterior side of the patient. A combination of internal screws and rods, as well as external pins, rods, and correction mechanisms, are used to obtain facet unlocking and translational correction of the affected vertebrae. The internal rods are inserted percutaneously and are secured to the affected vertebrae to maintain the deformity correction. External components are then removed, and the small incisions are sutured.
Claims20
A system for correcting spinal deformity, comprising:
- (a) a plurality of anchor members, wherein each of the anchor members is configured to be inserted percutaneously into the spine of a patient;
- (b) a stabilizing member, wherein the stabilizing member is configured to engage at least one of the anchor members when the stabilizing member is external to the patient and when the anchor members are inserted into the spine of the patient;
- (c) a translation correction mechanism, wherein the translation correction mechanism is securable relative to the stabilizing member and relative to at least one respective anchor member, wherein the translation correction mechanism is operable to move a vertebra translationally relative to the stabilizing member;
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- (d) a facet unlocking mechanism, wherein the facet unlocking mechanism is securable relative to the stabilizing member and relative to at least one respective anchor member, wherein the translation correction mechanism is operable to rotate a vertebra relative to the spinal column of the patient.
A system for correcting spinal deformity, comprising:
- (a) a plurality of anchor members, wherein each of the anchor members is configured to be inserted percutaneously into the spine of a patient;
- (b) an external stabilizing member, wherein the external stabilizing member is configured to engage at least one of the anchor members when the external stabilizing member is external to the patient and when the anchor members are inserted into the spine of the patient;
- (c) a translation correction mechanism, wherein the translation correction mechanism is securable relative to the external stabilizing member, wherein the translation correction mechanism is operable to move a vertebra translationally relative to the external stabilizing member via at least one corresponding anchor member;
- (d) a facet unlocking mechanism, wherein the facet unlocking mechanism is securable relative to the external stabilizing member, wherein the translation correction mechanism is operable to rotate a vertebra relative to the spinal column of the patient via at least one corresponding anchor member;
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- (e) an internal stabilizing member, wherein the internal stabilizing member is engagable with at least a portion of the plurality of anchor members, wherein the internal stabilizing member is configured to be percutaneously introduced to at least a portion of the plurality of anchor members.
A system for correcting spinal deformity, comprising:
- (a) a plurality of anchors, wherein the anchors are percutaneously insertable into the spine of a patient;
- (b) means for rotating vertebrae of the patient via at least a portion of the plurality of anchors, wherein the means for rotating vertebrae of the patient is manipulable external to the patient;
- (c) means for translationally moving vertebrae of the patient via at least a portion of the plurality of anchors, wherein the means for translationally moving vertebrae is manipulable external to the patient;
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- (d) means for maintaining an alignment of vertebrae obtained using the means for rotating vertebrae and the means for translationally moving vertebrae, wherein the means for maintaining an alignment is percutaneously insertable into the patient.
Dependencies are inferred from the claim text.