Looking inside the fallopian tube with a tiny (half a millimeter diameter) flexible, fiberoptic instrument, from the direction of the uterus. See also salpingoscopy.

Overcoming a localised obstruction of the isthmus or the interstitial segment of the fallopian tube by pushing a wire or a catheter through it, enabling (in some cases) the tube to be 're-canalised' and so to remain open after being blocked before; it's an attractive alternative to tubal anastomosis and can be performed either during the investigation of tubal infertility with hysteroscopy, laparoscopy and falloposcopy or at the time of carrying out a hysterosalpingogram. Because not all tubes that seem to be blocked are in fact blocked (sometimes a normal tube will not allow fluid to pass through it for hormonal reasons or because of a spasm), care needs to be taken to investigate the tube properly before canalisation is undertaken.