Systems and methods for forming a cavity in cancellous bone
First Claim
1. A device comprising a shaft having an elongated shaft axis and a proximal end portion and a distal end portion, the elongated shaft being sized and configured for passage through a percutaneous access path into a cancellous bone region, a cavity forming structure carried on the distal end of the shaft and being sized and configured to be manipulated to form a cavity in the cancellous bone region, the cavity forming structure having an elongated cavity forming axis, and a mechanism for deflecting the cavity forming structure along the elongated cavity forming axis to shift the elongated cavity forming axis relative to the elongated shaft axis.
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Accused Products
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.
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Citations
14 Claims
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1. A device comprising
a shaft having an elongated shaft axis and a proximal end portion and a distal end portion, the elongated shaft being sized and configured for passage through a percutaneous access path into a cancellous bone region, a cavity forming structure carried on the distal end of the shaft and being sized and configured to be manipulated to form a cavity in the cancellous bone region, the cavity forming structure having an elongated cavity forming axis, and a mechanism for deflecting the cavity forming structure along the elongated cavity forming axis to shift the elongated cavity forming axis relative to the elongated shaft axis.
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10. A method comprising
providing a percutaneous access path having an axis into bone having an interior volume occupied, at least in part, by cancellous bone, introducing a cavity creating device having a cavity creating axis through the access path into the cancellous bone volume, and manipulating the cavity creating device to form a cavity in the cancellous bone volume including deflecting the cavity creating device along the cavity creating axis relative to the axis of the access path.
Specification