LOW-COMPLIANCE EXPANDABLE MEDICAL DEVICE
First Claim
1. An apparatus, comprising:
- an elongate body; and
an expandable member coupled to the elongate body, the expandable member having a collapsed configuration, an unfolded configuration and an expanded configuration, the expandable member configured to be percutaneously inserted into an interior portion of a bone structure when the expandable member is in the collapsed configuration,the expandable member configured to exert a pressure in a vertical direction on a first portion of the bone structure in contact with the expandable member greater than a pressure exerted in a lateral direction on a second portion of the bone structure in contact with the expandable member when the expandable member transitions from the unfolded configuration to the expanded configuration.
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Abstract
An apparatus includes an elongate body and an expandable member coupled to the elongate body. In one embodiment, the expandable member has a collapsed configuration, an unfolded configuration and an expanded configuration. The expandable member is configured to be percutaneously inserted into an interior portion of a bone structure when the expandable member is in the collapsed configuration. The expandable member is configured to exert a pressure in a vertical direction on a first portion of the bone structure in contact with the expandable member greater than a pressure exerted in a lateral direction on a second portion of the bone structure in contact with the expandable member when the expandable member transitions from the unfolded configuration to the expanded configuration.
250 Citations
18 Claims
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1. An apparatus, comprising:
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an elongate body; and an expandable member coupled to the elongate body, the expandable member having a collapsed configuration, an unfolded configuration and an expanded configuration, the expandable member configured to be percutaneously inserted into an interior portion of a bone structure when the expandable member is in the collapsed configuration, the expandable member configured to exert a pressure in a vertical direction on a first portion of the bone structure in contact with the expandable member greater than a pressure exerted in a lateral direction on a second portion of the bone structure in contact with the expandable member when the expandable member transitions from the unfolded configuration to the expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus, comprising:
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an elongate body; and an expandable member constructed with low-compliance material releasably coupled to the elongate body, the expandable member having a collapsed configuration and an expanded configuration, the expandable member configured to be percutaneously disposed entirely within an interior portion of a single vertebral body, the expandable member in the expanded configuration configured to be released from the elongate body and remain within the interior portion of the vertebral body after the elongate body has been removed from the vertebral body. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus, comprising:
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an elongate body defining a longitudinal axis; and an expandable member constructed with low-compliance material, the expandable member configured to be disposed within an interior portion of a vertebral body, the expandable member having a collapsed configuration and an expanded configuration, the expandable member when in the expanded configuration has a width substantially perpendicular to the longitudinal axis that is greater than a length substantially parallel to the longitudinal axis, the expandable member when in the expanded configuration configured to exert a pressure on cancellous bone disposed between the expandable member and an endplate of the vertebral body. - View Dependent Claims (15, 16, 17, 18)
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Specification