MEDICAL DEVICE WITH DUAL EXPANSION MECHANISM
First Claim
1. An apparatus, comprising:
- a first expandable member configured to disrupt a body when in an expanded configuration and rotated relative to the body; and
a second expandable member disposed within the first expandable member and configured to block at least a portion of disrupted portions of the body from being disposed within the first expandable member.
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Accused Products
Abstract
Apparatuses and methods for accessing a tissue and expanding an apparatus within the tissue are disclosed. In one embodiment, an apparatus includes a first expandable member and a second expandable member disposed within the first expandable member. The first expandable member is configured to disrupt a body when in an expanded configuration and rotated relative to the body. The second expandable member is configured to block at least a portion of disrupted portions of the body from being disposed within the first expandable member. In some embodiments, the first expandable member is coupled to a sheath. The first expandable member is configured to be inserted at least partially into the body while disposed within a lumen of the sheath. The sheath is configured to be moved proximally while at least partially inserted into the body such that the first expandable member is moved from its collapsed to its expanded configuration.
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Citations
35 Claims
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1. An apparatus, comprising:
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a first expandable member configured to disrupt a body when in an expanded configuration and rotated relative to the body; and
a second expandable member disposed within the first expandable member and configured to block at least a portion of disrupted portions of the body from being disposed within the first expandable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus, comprising:
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an elongate body including a distal end portion and having an expanded configuration and a collapsed configuration;
a flexible member having an expanded configuration and a collapsed configuration, at least a portion of the flexible member being disposed within the distal end portion of the elongate body;
a reservoir in fluid communication with the flexible member; and
an actuator coupled to the reservoir, the actuator configured to actuate the elongate body between its collapsed configuration and its expanded configuration while simultaneously actuating movement of fluid contained within the reservoir and the flexible member to actuate the flexible member between its collapsed configuration and its expanded configuration. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. An apparatus, comprising:
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an elongate body including a distal end portion and having an expanded configuration and a collapsed configuration;
a flexible member having a distal end portion disposed within the distal end portion of the elongate body; and
a reservoir coupled to the proximal end portion of the flexible member, a first volume of fluid being disposed within the reservoir when the elongate body is in its expanded configuration, a second volume of fluid being disposed within the reservoir when the elongate body is in its collapsed configuration, the first volume of fluid being smaller than the second volume of fluid. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. An apparatus, comprising:
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a sheath defining a lumen;
an elongate body disposed at least partially within the lumen of the sheath and including a distal end portion having an expanded configuration and a collapsed configuration;
an expandable member disposed at least partially within the lumen of the sheath and a distal end portion of the expandable member is disposed within the distal end portion of the elongate body; and
a reservoir in fluid communication with a proximal end portion of the expandable member, the sheath configured to be actuated between a first position in which the distal end portion of the elongate body is in the expanded configuration and the reservoir has a first volume of fluid and a second position in which the distal end portion of the elongate body is in the collapsed configuration and the reservoir has a second volume of fluid. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A method, comprising:
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disposing a distal end portion of a first elongate body at least partially into an interior portion of a vertebra while the first elongate body is in a collapsed configuration, the distal end portion of the first elongate body having a cutting portion;
expanding the first elongate body to an expanded configuration;
simultaneously with the expanding, moving a second elongate body disposed within a lumen of the first elongate body from a collapsed configuration to an expanded configuration; and
rotating the first elongate body while the first elongate body is in the expanded configuration such that the cutting portion disrupts cancellous bone within the interior portion of the vertebra, the second elongate body configured to prevent at least a portion of disrupted cancellous bone from being disposed within the first elongate body during the rotating. - View Dependent Claims (34, 35)
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Specification