Patent ID: 9017317
Filing Date: 2015-04-28
Classification: A61B,A61F

Abstract:
1. A cryotherapeutic system, comprising: a high-pressure line configured to be removably connected to a supply lumen of a cryo-catheter; a low-pressure line configured to be removably connected to an exhaust lumen of the cryo-catheter; a recompression unit operably connected to the high-pressure line and the low-pressure line, the recompression unit being configured to increase the pressure of and at least partially condense refrigerant moving from the low-pressure line to the high-pressure line, wherein the high-pressure line, the low-pressure line, and the recompression unit are configured to contain a first volume of refrigerant; and a make-up reservoir configured to contain a second volume of refrigerant sufficient to replace refrigerant loss from the first volume of refrigerant caused by disconnecting the supply lumen from the high-pressure line, disconnecting the exhaust lumen from the low-pressure line, or both, wherein the high-pressure line, the low-pressure line, and the recompression unit are configured to define a portion of a closed loop when the high-pressure line is operably connected to the supply lumen and the low-pressure line is operably connected to the exhaust lumen.