1962 年 13 巻 2 号 p. 128-130,en85
The rouud disk-formed Oesophageal foreign bodies, such as Go-pieces, are difficult to grasp and remove by usual forceps under oesophagoscope because of their sliply surfaces.
We succeeded in removing the glass-made Go-piece lodged at the 3rd constriction of the oesophagus, with the special forcep, at the tip of which the shark-skin (1.5cm-long) was plostered. This forcep was desigued dy professor Ono.