Ligament Decompression Tool with Tissue Engaging Device
First Claim
1. A tissue excision system for percutaneous surgery, comprising:
- a cannula comprising a tissue-penetrating member having a distal end defining an aperture on one side thereof;
an occluding member slidably received on or in said cannula and closing said aperture when said occluding member is adjacent said cannula distal end;
means for engaging adjacent tissue via said aperture; and
cutting means for resecting a section of said engaged tissue.
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Accused Products
Abstract
A method for treating stenosis in a spine comprises percutaneously accessing the epidural space in a stenotic region of interest, compressing the thecal sac in the region of interest to form a safety zonem, inserting a tissue removal tool into tissue in the working zone, using the tool to percutaneously reduce the stenosis; and utilizing imaging to visualize the position of the tool during at least a part of the reduction step. A tissue excision system for performing percutaneous surgery, comprises a cannula comprising a tissue-penetrating member having a distal end defining an aperture on one side thereof, an occluding member slidably received on or in the cannula and closing the aperture when the occluding member is adjacent the cannula distal end, means for engaging adjacent tissue via the aperture, and cutting means for resecting a section of the engaged tissue.
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Citations
39 Claims
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1. A tissue excision system for percutaneous surgery, comprising:
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a cannula comprising a tissue-penetrating member having a distal end defining an aperture on one side thereof;
an occluding member slidably received on or in said cannula and closing said aperture when said occluding member is adjacent said cannula distal end;
means for engaging adjacent tissue via said aperture; and
cutting means for resecting a section of said engaged tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16)
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17. A method for treating stenosis in a spine, the spine including a thecal sac and a canal and an epidural space therebetween, the stenosis determining a region of interest in the spine, comprising the steps of:
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a) percutaneously accessing the epidural space in the region of interest;
b) compressing the thecal sac in the region of interest by injecting a fluid to form a safety zone and establish a working zone, the safety zone lying between the working zone and the thecal sac;
c) inserting a tissue removal tool into tissue in the working zone;
d) using the tool to percutaneously reduce the stenosis; and
e) utilizing imaging to visualize the position of the tool during at least a part of step d). - View Dependent Claims (9, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A kit for performing a procedure on a spines the spine including an epidural space containing a thecal sac, the kit comprising:
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an insertion member for accessing the epidural space;
an expandable device adapted to be inserted into the epidural space by the insertion member and expanded so as to compress a portion of the thecal sac and provide a safety zone within the epidural space. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification