Three lumen balloon catheter apparatus

A catheter useful for non-surgical entry into subject's uterus to dispense a diagnostic fluid therein and to the fallopian tubes and to retrieve a sample from said dispensed fluid, the catheter comprising:

• an elongated body having a proximal end, a distal end, a first lumen, a second lumen, and a third lumen,
• a balloon disposed marginally adjacent to the distal end of the elongated body for fluid sealing the interior of the subject's uterus;
• wherein the first and second lumens extend from the proximal end up to the distal end of the elongated body, and the third lumen extends from the proximal end to a point before the distal end and has an opening proximal to the distal end to inflate the balloon,
• wherein the first lumen has an opening at a tip at the distal end of the catheter for dispensing a diagnostic fluid into the interior of the subject's uterus, and
• wherein the second lumen has an opening at the tip for retrieving a sample of said dispensed fluid from the interior of the subject's uterus.