Methods: the electronic gastroscopy and maxforce tts water balloon catheter dilator were adopted to dilate esophageal stenosis in86patients.
Methods:Hysterosalpingography with urografin (76%) by using of a traditional metal cannula versus a balloon catheter with increasing pressure in 273 cases with infertility were studied.
The latest research evaluated a new approach to PVI in which cryothermal energy was applied via a balloon catheter.