Methods for treating fractured and/or diseased bone
First Claim
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1. A method for treating or preventing a vertebral compression fracture comprising the steps of:
- inserting an insertion device percutaneously into a vertebral body;
inserting a cavity-forming device through the insertion device into an area of cancellous bone in the vertebral body;
displacing cancellous bone with the cavity-forming device to create a cavity and a barrier region of compressed cancerous bone substantially surrounding the cavity; and
filling at least a portion of the cavity with a bone filler, and inserting a cavity-forming device into the cavity and compressing at least a portion of the bone filler against the barrier region.
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Abstract
The present invention relates to devices and methods for treating fractured and/or diseased bone. More specifically, the present invention relates to devices and methods for repairing, reinforcing and/or treating fractured and/or diseased bone using various devices, including cavity-forming devices.
605 Citations
13 Claims
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1. A method for treating or preventing a vertebral compression fracture comprising the steps of:
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inserting an insertion device percutaneously into a vertebral body;
inserting a cavity-forming device through the insertion device into an area of cancellous bone in the vertebral body;
displacing cancellous bone with the cavity-forming device to create a cavity and a barrier region of compressed cancerous bone substantially surrounding the cavity; and
filling at least a portion of the cavity with a bone filler, and inserting a cavity-forming device into the cavity and compressing at least a portion of the bone filler against the barrier region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
a tube comprising a distal end and a proximal end;
an expandable structure; and
a fitting comprising at least one port.
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6. The method of claim 5 wherein the tube of the balloon catheter is hollow and comprises at least one opening near the distal end of the tube.
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7. The method of claim 6 wherein the expandable structure of the catheter is bonded to the distal end of the tube.
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8. The method of claim 7 wherein the expandable structure is inflated with an inflation medium, thereby forming a cavity and a barrier surrounding the cavity within the vertebral body;
- and wherein the expandable structure is subsequently deflated and removed through the insertion device.
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9. The method of claim 8 wherein the inflation medium is selected from the group consisting of air, nitrogen, saline, water and combinations thereof.
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10. The method of claim 1 wherein the bone filler is a polymethylmethacrylate.
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11. A method for treating or preventing a vertebral compression fracture comprising the steps of:
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inserting a spinal needle of a needle assembly percutaneously through a pedicle into a vertebral body;
inserting a balloon catheter through the spinal needle into an area of cancerous bone within the vertebral body, so that the distal end of the balloon catheter extends out of the distal end of the spinal needle;
inflating the balloon catheter with an inflation medium such that inflation of the distal end of the balloon catheter extending from the spinal needle displaces cancerous bone around the inflating balloon, forming a barrier region around the balloon catheter that at least partly closes large cracks or veins within the cancellous bone area of the vertebral body;
deflating the balloon catheter and leaving a cavity within the cancellous bone area of the vertebral body;
removing the balloon catheter from the vertebral body through the needle assembly;
filling the cavity with a bone filler; and
compressing at least a portion of the bone filler against the barrier region. - View Dependent Claims (12, 13)
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Specification