Catheter with valves

A method comprising:

• determining, by control circuitry, a condition has occurred;
• and
• in response to determining the condition has occurred, control an active valve of a catheter to open the active valve, the catheter comprising:
• an elongated body defining an injection lumen, a drainage lumen, and an inflation lumen, the elongated body comprising a proximal portion and a distal portion;
• an anchoring member positioned on the proximal portion of the elongated body, the anchoring member being fluidically coupled to the inflation lumen;
• and the active valve positioned in or about the drainage lumen, wherein the active valve is configured to move between a closed state in which, when a proximal end of the elongated body is positioned in a bladder of a patient, the active valve is configured to retain fluid in the bladder, and the open state in which the active valve enables the drainage of fluid from the bladder of the patient via the drainage lumen.

A Foley catheter comprising:

• an elongated body defining an injection lumen, a drainage lumen, and an inflation lumen, the elongated body comprising a proximal portion and a distal portion;
• an anchoring member positioned on the proximal portion of the elongated body and fluidically coupled to the inflation lumen;
• a sensor positioned on the distal portion of the elongated body or distal to a distal end of the elongated body, the sensor configured to sense a substance of interest;
• a check valve positioned in or about the drainage lumen, the check valve being configured to prevent air from flowing through the drainage lumen;
• and
• an active valve positioned in or about the drainage lumen, the active valve being configured to move between a closed state in which, when a proximal end of the elongated body is positioned in a bladder of the patient, the active valve is configured to retain fluid in the bladder, and an open state in which the active valve enables drainage of the fluid from the bladder via the drainage lumen.