| CPC A61B 18/02 (2013.01) [A61B 2017/22054 (2013.01); A61B 2017/22067 (2013.01); A61B 2018/00023 (2013.01); A61B 2018/00166 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00232 (2013.01); A61B 2018/0025 (2013.01); A61B 2018/00261 (2013.01); A61B 2018/00404 (2013.01); A61B 2018/00434 (2013.01); A61B 2018/00511 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/0262 (2013.01); A61B 2018/0268 (2013.01)] | 18 Claims |

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1. A cryotherapeutic system, comprising:
a cryotherapeutic device including:
an elongated shaft with a distal end portion that is configured to locate the distal end portion intravascularly at a treatment site within a renal artery or renal ostium,
a cooling assembly positioned at the distal end portion of the elongated shaft and including an applicator with an expandable element, the expandable element including an inner expandable element having orifices, the inner expandable element configured to distribute a refrigerant to the expandable element via the orifices,
wherein the expandable element includes a raised helical portion positioned around a recessed portion with the expandable element in an expanded state,
a pressure sensor configured to detect a pressure within the expandable element,
a pressure line fluidly coupling a pressure monitoring lumen and the pressure sensor, the pressure monitoring lumen extending through the elongated shaft and having a distal opening in fluid communication with the expandable element; and
a console coupled to the cryotherapeutic device and including:
a refrigerant supply container that is configured to retain the refrigerant and is coupled to a supply line that is configured to transport the refrigerant to the cryotherapeutic device,
an adaptor configured to removably couple the pressure line to the console such that the pressure line is removable from the console, and
a controller configured to:
determine whether the pressure sensor is calibrated; and
control a flow of the refrigerant to the cryotherapeutic device based on the pressure in response to determining that the pressure sensor is calibrated.
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