IMPROVED ONE WAY VALVE FOR USING WITH TROCAR

摘要

An one way valve for using with a trocar in micro-invasive surgeries, such as celioscope, ventroscope, etc. The one way valve (1) is mounted in the cavity of the end portion of the trocar sheath tube (2), the one way valve (1) includes a V-shape funnel construction (11), the bottom is provided with a slit (12) for passing through a puncturing rod, and a support body (13) for forming a sealing pressure to the slit (12), the support body (13) has a ?-shape construction, the support body (13) is connected to the bottom of the V-shape funnel construction (11), or connected to the outside of the opening of the V-shape funnel construction (11), some support ribs (17) are provided symmetrically, the support ribs (17) are distributed on two sides of the slit (12).