| 摘要 |
PROBLEM TO BE SOLVED: To provide a retractor for an endoscopic surgery which is light in weight, compact in size, excellent in handleability and suitable for the excision of thyroid gland or surgery of cervical regions. SOLUTION: On the lower face of a base plate 1, plural hung threads 4 are fitted so as to form a circular, elliptic or square contour and catching hooks 5 are hung at the lower ends of the threads 4. On the upper face of the plate 1, the upper end parts of supporting strings 6 are gathered through the strings 6 from at least three places of the outer periphery part of this plate 1 and the upper end of it is hung to the hook 12 of a vertically movable supporting stand 11. |
