Abstract: A system for performing a medical procedure in the intestine of a patient comprises a catheter for insertion into the intestine, a console, and a connector configured to operably attach the catheter to the console. The catheter comprises a shaft including a distal portion, and a functional assembly positioned on the distal portion of the shaft. The functional assembly is configured to receive fluid. The console comprises: a fluid reservoir configured to supply the fluid, a first syringe pump assembly configured to deliver the fluid to the functional assembly, a second syringe pump assembly configured to deliver the fluid to the functional assembly, a fluid heater configured to heat the fluid, and a waste fluid reservoir configured to receive the fluid. The system is configured to treat target tissue of the intestine of the patient. Methods of treating target tissue are also provided.

Abstract: An optical catheter system comprising an intraluminal catheter that provides optical signals to a patient and carries optical signals from the patient, an outer housing, and an inner carriage that moves longitudinally relative to the outer housing and rotates relative to the outer housing during operation when the catheter system is being driven by a pullback and rotation system. The optical catheter system has an interlock system that prevents rotation and longitudinal movement of the inner carriage in the outer housing until attached to the pullback and rotation system. The pullback and rotation system comprises a frame and a catheter system interface, attached to the frame, to which the catheter system is coupled. A carriage drive system is further provided that moves longitudinally and rotates relative to the frame to provide rotation and longitudinal drive to the catheter system.