FLEXIBLE TISSUE RASP
First Claim
1. A device for treating spinal stenosis, the device comprising:
- an elongate body having a tapered flexible distal portion that is configured to be passed into an epidural space of the spine between target and non-target tissues and out of a patient'"'"'s body;
a tissue modifying member disposed along one side of the elongate body proximal to the tapered flexible distal portion of the elongate body;
a protective surface along the elongate body opposite and behind the tissue modifying member that prevents non-target tissues from being modified by the tissue modification member; and
a handle at the proximal end of the shaft.
10 Assignments
0 Petitions
Accused Products
Abstract
Methods and devices are described for modifying tissue in a spine of a patient to treat or alleviate spinal stenosis. In one embodiment, a method may include: advancing at least a distal portion of an elongate tissue modification device into an epidural space and between target tissue and non-target tissue in the spine; positioning the tissue modification device so that at least one abrasive surface of the device faces target tissue and at least one non-abrasive surface faces non-target tissue; applying tensioning force at or near separate distal and proximal portions of the tissue modification device; and translating the tissue modification device back and forth while maintaining at least some tensioning force to abrade at least a portion of the target tissue with the at least one abrasive surface. Unwanted damage to the non-target tissue may be prevented via the at least one non-abrasive surface.
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Citations
38 Claims
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1. A device for treating spinal stenosis, the device comprising:
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an elongate body having a tapered flexible distal portion that is configured to be passed into an epidural space of the spine between target and non-target tissues and out of a patient'"'"'s body; a tissue modifying member disposed along one side of the elongate body proximal to the tapered flexible distal portion of the elongate body; a protective surface along the elongate body opposite and behind the tissue modifying member that prevents non-target tissues from being modified by the tissue modification member; and a handle at the proximal end of the shaft. - View Dependent Claims (2, 3, 4, 5)
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6. A device for modifying tissue in a spine of a patient to treat or alleviate spinal stenosis, the device comprising:
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an elongate, at least partially flexible body having a proximal portion and a distal portion; at least one abrasive surface disposed along a portion of one side of the elongate body; at least one non-abrasive surface located adjacent the at least one abrasive surface so as to face non-target tissue when the abrasive surface is positioned to face target tissue; at least one proximal tensioning member coupled with the elongate body at or near the proximal portion for facilitating application of tensioning force to, and translation of, the elongate body; and at least one distal tensioning member, coupled with the elongate body at or near the distal portion and not directly connected to the proximal tensioning member, for facilitating application of tensioning force to, and translation of, the elongate body. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A device for modifying tissue in a spine of a patient to treat or alleviate spinal stenosis, the device comprising:
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an elongate, at least partially flexible shield member having a proximal portion, a distal portion and at least one opening along its length; an elongate, at least partially flexible tissue modification member disposed at least partly within the shield member, the tissue modification member having a proximal portion, a distal portion, and at least one abrasive surface; at least one proximal tensioning member at or near the proximal portion of at least one of the shield member and the tissue modification member for facilitating application of tensioning force in a first direction; and at least one distal tensioning member at or near the distal portion of at least one of the shield member and the tissue modification member and not directly connected to the proximal tensioning member, for facilitating application of tensioning force in a second direction. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification