catheter

a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open

लेवेटर ऐनाइ पेशी, योनि आकर्ष मूत्राशय और मूत्रनलिका का परिस्पर्शन

this relieves the obstruction to the flow of urine by passing a catheter to empty the bladder.