| 摘要 |
PCT No. PCT/DE95/00157 Sec. 371 Date Mar. 5, 1996 Sec. 102(e) Date Mar. 5, 1996 PCT Filed Feb. 7, 1995 PCT Pub. No. WO95/20915 PCT Pub. Date Aug. 10, 1995A sheath for use in endoscopic surgery. A tubular proximal section fits in a trocar, along with a folded tubular distal section. The trocar inserts the distal section into a body cavity where it opens to receive severed tissue. A closure closes the distal end of the distal section to retain severed tissue. An abrupt transition section may join the proximal and distal sections. The material of the sheath is tough enough to enable external force to be applied to the tissue through the sheath without rupturing it. An optimal third tubular section may remain outside the body so tissue can be worked on outside of the body and returned into it. |
