Tissue removal tools and methods of use
First Claim
Patent Images
1. A tissue manipulation system for manipulating tissue in or adjacent to an intervertebral disc space, the system comprising:
- a deployment cannula having a proximal end portion, a distal end portion and at least one internal lumen;
a guide member movable within said at least one internal lumen of the cannula and out of the distal end portion of the cannula to define a substantially continuous loop wherein the guide member extends from and returns into the at least one lumen; and
at least one tissue manipulator having a leading end and a trailing end and comprising one or more of a blade including a cutting edge for cutting tissue, a tissue scraper including a scraping edge for scraping tissue and/or a tissue extractor including a tissue capturing structure for capturing and removing tissue from the intervertebral disc space, the at least one tissue manipulator being movable within said at least one internal lumen of the cannula, the at least one tissue manipulator having a passageway for receiving the guide member such that both the leading and trailing ends of the at least one tissue manipulator are advanceable over the guide member, first out of the distal end portion of the cannula and then around the substantially continuous loop defined by the guide member and returning again into the at least one lumen.
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Abstract
Discectomy or disc preparation system that includes a guide member that is changeable from a deployment configuration for insertion into an intervertebral disc space to a deployed configuration upon being deployed into the intervertebral disc. The system also includes at least one tissue manipulator, such as cutting, scraping and extraction elements, that can be moved or tracked longitudinally along the guide member into and through the intervertebral disc space.
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Citations
28 Claims
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1. A tissue manipulation system for manipulating tissue in or adjacent to an intervertebral disc space, the system comprising:
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a deployment cannula having a proximal end portion, a distal end portion and at least one internal lumen; a guide member movable within said at least one internal lumen of the cannula and out of the distal end portion of the cannula to define a substantially continuous loop wherein the guide member extends from and returns into the at least one lumen; and at least one tissue manipulator having a leading end and a trailing end and comprising one or more of a blade including a cutting edge for cutting tissue, a tissue scraper including a scraping edge for scraping tissue and/or a tissue extractor including a tissue capturing structure for capturing and removing tissue from the intervertebral disc space, the at least one tissue manipulator being movable within said at least one internal lumen of the cannula, the at least one tissue manipulator having a passageway for receiving the guide member such that both the leading and trailing ends of the at least one tissue manipulator are advanceable over the guide member, first out of the distal end portion of the cannula and then around the substantially continuous loop defined by the guide member and returning again into the at least one lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A tissue manipulation system for manipulating tissue in or adjacent to an intervertebral disc space, the system comprising:
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a deployment cannula having a proximal end portion, a distal end portion and at least one internal lumen; a guide member movable within said at least one internal lumen of the cannula and out of the distal end portion of the cannula to define a substantially continuous loop wherein the guide member extends from and returns into the at least one lumen; and at least one tissue manipulator comprising one or more of a blade including a cutting edge for cutting tissue, a tissue scraper including a scraping edge for scraping tissue and/or a tissue extractor including a tissue capturing structure for capturing and removing tissue from the intervertebral disc space, the at least one tissue manipulator being movable within said at least one internal lumen of the cannula, the at least one tissue manipulator having a passageway for receiving the guide member such that the at least one tissue manipulator is advanceable over the guide member, out of the distal end portion of the cannula and over the substantially continuous loop defined by the guide member in which the cannula includes a first lumen and a second lumen, wherein the substantially continuous loop defined by the guide member extends from the first lumen and returns into the second lumen. - View Dependent Claims (14, 15, 16, 17)
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18. A method of manipulating tissue in or adjacent to an intervertebral disc space, comprising:
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inserting a guide member into an intervertebral disc space; forming a portion of the guide member into a substantially continuous looped configuration wherein the portion of the guide member extends into and returns out of the intervertebral disc space; and advancing at least one tissue manipulator having a leading end and a trailing end along the portion of the guide member formed into the substantially continuous looped configuration to manipulate tissue within and/or adjacent to the disc space such that both the leading and trailing ends of the at least one tissue manipulator are advanced over the guide member first into and returning again from the intervertebral disc space, wherein the tissue manipulator comprises one or more of a blade including a cutting edge for cutting tissue, a tissue scraper including a scraping edge for scraping tissue and/or a tissue extractor including a tissue capturing structure for capturing and removing tissue from the intervertebral disc space. - View Dependent Claims (19, 20)
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21. A tissue manipulation system for manipulating tissue in or adjacent to an intervertebral disc space, the system comprising:
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an elongated guide member including a distal end portion adapted for insertion into an intervertebral disc space, the distal end portion of the guide member forming a substantially continuous looped configuration wherein the guide member extends into and returns out of the intervertebral disc space when positioned within the intervertebral disc space; and at least one tissue manipulator having a leading end and a trailing end and comprising one or more of a blade including a cutting edge for cutting tissue, a tissue scraper including a scraping edge for scraping tissue and/or a tissue extractor including a tissue capturing structure for capturing and removing tissue from the intervertebral disc space, the at least one tissue manipulator having a passageway for receiving the guide member such that both the leading and the trailing ends of the at least one tissue manipulator are advanceable around the substantially looped configuration of the distal end portion of the guide member and first into and returning again from the intervertebral disc space. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification