Systems and methods for forming a cavity in cancellous bone
AssigneeKyphon SARL
InventorsRobert M Scribner, Michael L Reo
Life of this patent
Estimating the term…
Abstract
A cavity creating device having a cavity creating axis is introduced through a percutaneous access path into a cancellous bone volume, e.g., within a vertebral body. The cavity creating device is manipulated to form a cavity in the cancellous bone volume. The manipulation includes deflecting the cavity creating device along the cavity creating axis relative to the axis of the access path. A material, such as bone cement, can be conveyed into the cavity.
Claims50
A method for treating an interior body region having a bone wall, the method comprising:
- accessing the interior body region with a therapeutic device along a first axis, the therapeutic device including
- a catheter tube and
- an expandable structure, having a collapsed geometry and an expanded geometry, and including an interior lumen extending through the expandable structure and sized to accommodate passage of an elongated member for directing the expandable structure;
- directing the interior lumen along the first axis;
- expanding the expandable structure from the collapsed geometry to the expanded geometry within the interior body region;
- and
- moving at least a portion of the bone wall with a force applied by the expandable structure in its expanded geometry.
A method for treating an interior body region enclosed, at least in part, by a bone wall, the method comprising:
- inserting a catheter tube into the interior body region along a first axis;
- inserting a bone manipulation device through the catheter tube, the bone manipulation device including an inflatable chamber and an interior lumen extending through the inflatable chamber;
- directing the orientation of the inflatable chamber within the interior body region with an elongated member extended within the interior lumen of the inflatable chamber;
- inflating the inflatable chamber;
- and
- displacing at least a portion of the cortical bone wall with a force applied by the inflatable chamber.
A method for treating an interior body region having tissue bounded, at least in part, by a bone wall, the method comprising:
- inserting an expandable body into the interior body region thereby creating a passage through the tissue, the expandable body comprising an expandable chamber and an internal tube passing through the expandable chamber;
- directing the orientation of the internal tube with an elongated member extended within the internal tube;
- expanding the expandable body within the interior body region;
- and
- compressing the tissue against the bone wall with a force applied by the expandable body.
A method for treating an interior body region enclosed, at least in part, by a bone wall, the method comprising:
- accessing the interior body region with a catheter tube;
- extending a stiffening member through the catheter tube and into the interior body region;
- inserting an expandable body into the interior body region, the expandable body including an interior tube defining an interior lumen sized to receive the stiffening member;
- expanding the expandable body within the interior body region;
- compressing the tissue against the bone wall with a force applied by the expandable body;
- and
- introducing a therapeutic substance into the interior body region.
Dependencies are inferred from the claim text.