Percutaneous spinal implants and methods
First Claim
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1. An apparatus, comprising:
- an outer body having a longitudinal axis and defining an interior region, at least a portion of the outer body configured to be disposed between adjacent spinous processes;
the outer body having a spacer portion and an extension portion, and being movable between a collapsed configuration and an expanded configuration;
an inner body disposed within the interior region of the outer body and having a distal end portion coupled to a distal end portion of the outer body, a most proximal end portion of the inner body configured to removably receive a tool to move the outer body between the collapsed and expanded configurations;
wherein in the expanded configuration;
the extension portion extends farther outwardly from the longitudinal axis than in the collapsed configuration;
the spacer portion extends the same distance from the longitudinal axis as in the collapsed configuration;
a length of the outer body is shorter than in the collapsed configuration.
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Abstract
An apparatus includes an elongate member having a portion configured to be deformed from a first configuration to a second configuration. In one variation, the apparatus includes an outer body, defining an interior region, and an inner body. A portion of the outer body is configured to be disposed between adjacent spinous processes. The inner body is disposed within the interior region of the outer body. A distal end portion of the inner body is coupled to a distal end portion of the outer body. A proximal end portion of the inner body configured to removably receive a tool to move the outer body between a collapsed configuration and an expanded configuration.
390 Citations
22 Claims
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1. An apparatus, comprising:
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an outer body having a longitudinal axis and defining an interior region, at least a portion of the outer body configured to be disposed between adjacent spinous processes; the outer body having a spacer portion and an extension portion, and being movable between a collapsed configuration and an expanded configuration; an inner body disposed within the interior region of the outer body and having a distal end portion coupled to a distal end portion of the outer body, a most proximal end portion of the inner body configured to removably receive a tool to move the outer body between the collapsed and expanded configurations; wherein in the expanded configuration; the extension portion extends farther outwardly from the longitudinal axis than in the collapsed configuration; the spacer portion extends the same distance from the longitudinal axis as in the collapsed configuration; a length of the outer body is shorter than in the collapsed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus, comprising:
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an outer body having a longitudinal axis comprises a spacer portion and an extension portion, wherein the outer body is configured to form a collapsed configuration and an expanded configuration; an inner body disposed within an interior region defined by the outer body and having a distal end portion coupled to a distal end portion of the outer body, the inner body having an inner threaded portion disposed on a most proximal end thereof and configured to threadedly couple to a deployment tool configured to exert a compressive axial force on the outer body to move the outer body between the expanded configuration and the collapsed configuration while at least a portion of the outer body is disposed between adjacent spinous processes; wherein in the expanded configuration; the extension portion extends farther outwardly from the longitudinal axis than in the collapsed configuration; the spacer portion extends the same distance from the longitudinal axis as in the collapsed configuration; a length of the outer body is shorter than in the collapsed configuration. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification