Patent ID: 8579892
Filing Date: 2013-11-12
Classification: A61B,A61M

Abstract:
1. A medical system for applying thermal energy to tissue, comprising: an elongated probe with an axis having an interior flow channel extending to at least one outlet in a probe working end, wherein a wall of the flow channel includes an insulative portion having a thermal conductivity to limit thermal transfer from the probe to tissue; a source of vapor media configured to provide a vapor flow through at least a portion of the interior flow channel, wherein the vapor has a minimum temperature; and where the elongated probe includes an extension member, where the interior flow channel comprises a first interior flow channel located within the extension member and extending to at least one outlet in a distal working end, and wherein the extension member includes an insulative portion to limit thermal transfer from the probe to tissue; a second flow channel in the probe and extension member wherein a distal portion of the first and second flow channels are in fluid communication and a valve in the first or second flow channel for selectively providing a flow of vapor (i) through the at least one outlet or (ii) through the second channel.