TISSUE EXCISION DEVICES AND METHODS
First Claim
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1. A device for percutaneously excising tissue comprising:
- an elongate body including a first member having a distal cutting end and a second member that slidingly engages the first member, wherein the second member includes a tissue capture chamber having an opening facing the first member; and
wherein the first member is moveable relative to the second member between an opened position and a closed position, wherein the first member is disposed across the tissue capture chamber of the second member when the first member is in the closed position.
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Abstract
A device for percutaneously excising tissue. In an embodiment, the device comprises an elongate body including a first member having a distal cutting end and a second member that slidingly engages the first member. In addition, the second member includes a tissue capture chamber having an opening facing the first member. Further, the first member is moveable relative to the second member between an opened position and a closed position, wherein the first member is disposed across the tissue capture chamber of the second member when the first member is in the closed position.
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Citations
25 Claims
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1. A device for percutaneously excising tissue comprising:
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an elongate body including a first member having a distal cutting end and a second member that slidingly engages the first member, wherein the second member includes a tissue capture chamber having an opening facing the first member; and
wherein the first member is moveable relative to the second member between an opened position and a closed position, wherein the first member is disposed across the tissue capture chamber of the second member when the first member is in the closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for treating stenosis in a spine of a patient having a median plane, the spine including a spinal canal having a posterior surface, a dural sac and an epidural space between the posterior surface and dural sac, the location of the stenosis determining a region of interest in the spine, comprising:
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a) providing a tissue excision device comprising;
a first member and a second member that slidingly engages the first member;
wherein the second member includes a cavity having an opening that faces the first member; and
wherein the first member and the second member are movable relative to one another between an opened position and a closed position, wherein the first member is disposed across the cavity of the second member when the first member is in the closed position;
b) positioning the tissue excision device adjacent the region of interest;
c) opening the cavity of the tissue excision device by sliding the first member relative to the second member;
d) inserting the tissue excision device into tissue in the region of interest; and
e) closing the cavity of the tissue excision device by sliding the first member relative to the second member; and
f) capturing an excised tissue segment within the cavity of the second member. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A kit for performing a procedure on a spine, the spine including an epidural space containing a dural sac, the kit comprising:
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a tissue excision device, wherein the tissue excision device comprises;
a first moveable member;
a second moveable member including a tissue capture chamber having an opening facing the first moveable member, wherein the second moveable member slidingly engages the first moveable member;
wherein the first moveable member is slidable between a first position and a second position relative to the second member;
wherein the first member is disposed across the cavity when the first moveable member is in the first position, and wherein the cavity is at least partially open when the first member is in the second position; and
a tissue retrieval device. - View Dependent Claims (24, 25)
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Specification