Tissue treatment system with fluid delivery console

A console for performing a medical procedure in the intestine of a patient, the console comprising:

• a connector configured to operably attach to a catheter, the catheter being insertable into the intestine and comprising a balloon configured to receive fluid for thermal ablation;
• a fluid reservoir interface configured to receive a fluid reservoir containing the fluid;
• a first syringe pump assembly comprising a first syringe and a first plunger configured to retract to draw the fluid into the first syringe and to advance to deliver the fluid from the first syringe to the catheter;
• a second syringe pump assembly comprising a second syringe and a second plunger configured to retract to draw the fluid into the second syringe and to advance to deliver the fluid from the second syringe to the catheter;
• a fluid heater comprising a flow path in fluid communication with the second syringe pump assembly, the flow path being configured to convey fluid in a first direction and in a second, opposite direction, and the fluid heater being configured to heat fluid flowing through the flow path;
• and
• a waste reservoir interface configured to receive a waste fluid reservoir configured to receive the fluid from the catheter;
• wherein the console is operable in a heating-and-delivery arrangement in which (i) retraction of the second plunger draws fluid from the catheter through the flow path of the fluid heater in the first direction while the fluid heater heats the fluid to produce warmed fluid within the second syringe, and (ii) thereafter, advancement of the second plunger forces the warmed fluid from the second syringe through the flow path of the fluid heater in the second direction while the fluid heater heats the warmed fluid to produce ablative-temperature fluid delivered to the catheter;
• wherein the console is configured to treat target tissue of the intestine of the patient when the catheter is connected to the connector.