Medical system and method of use
First Claim
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1. A surgical instrument for tissue extraction comprising:
- an elongated introducer body extending along an axis to a distal end;
a passageway extending through the elongated introducer body including a proximal end and a distal opening;
wherein the distal opening is configured with an inwardly sloping surface that transitions to the passageway;
a plurality of flow outlets positioned in the inwardly sloping surface; and
an evaporation chamber located adjacent to the distal opening, where the evaporation chamber is in fluid communication with a fluid source to convert a fluid to a vapor such that the vapor exits through the plurality of flow outlets.
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Abstract
A tissue evacuation device may be designed to provide a high-energy fluid (e.g., a heated vapor) to targeted tissue for breaking down the targeted tissue, such as the nucleus of an intervertebral disc. An inner tube positioned within an outer tube, having a nozzle coupled to distal ends of the tubes, having a heating element positioned between the inner and outer tubes, delivers a heated vapor through a port to the nozzle to break down tissue. After the nucleus or other targeted tissue is broken down, the tissue evacuation device may also remove some or all of the broken down tissue.
415 Citations
18 Claims
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1. A surgical instrument for tissue extraction comprising:
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an elongated introducer body extending along an axis to a distal end; a passageway extending through the elongated introducer body including a proximal end and a distal opening;
wherein the distal opening is configured with an inwardly sloping surface that transitions to the passageway;a plurality of flow outlets positioned in the inwardly sloping surface; and an evaporation chamber located adjacent to the distal opening, where the evaporation chamber is in fluid communication with a fluid source to convert a fluid to a vapor such that the vapor exits through the plurality of flow outlets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical instrument for tissue extraction using a high energy fluid, the surgical instrument comprising:
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an elongated introducer body extending along an axis to a distal end, a portion of the elongated introducer body being fluidly coupleable to a source of fluid; an inner tube defining a passageway extending through the elongated introducer body, the passageway including a proximal end and a distal opening;
wherein the distal opening is configured with an inwardly sloping surface that transitions to the passageway, where the proximal end of the passageway is fluidly coupleable to a vacuum source;a chamber having a heating element, where the chamber is located exterior to the inner tube and interior to the elongated introducer body and adjacent to the distal opening, where the heating element can transform fluid passing through the chamber into the high energy fluid, and a plurality of flow outlets positioned in the inwardly sloping surface, where the plurality of flow outlets are in fluid communication with the chamber. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification