| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that conventional equipment obstructs a medical operation site to move and distorts a incised part because it is large and heavy in the case of filtering feeding and exhaust gas by attaching an external filter to a cannula and introducing it to the peritoneal cavity of a patient. SOLUTION: The cannula assembly 500 is provided with an entrance for fluid and a fluid passage formed in a housing 100 and a gas filter 200 composed of at least one porous medium as an element so as to cross the fluid passage. |
