| 摘要 |
<p>An one-way valve for trocar is provided, which is mounted in the cavity of the end portion of the trocar sheath tube (2), and includes a V-shape funnel construction (11) acted as the upper portion of the one-way valve (1), a slit (12) provided on the bottom surface of the V-shape funnel construction (11), and a supporting body (13) acted as the lower portion of the one-way valve (1) and providing the sealing pressure to the slit (12). The supporting body (13) is connected to the outside of the inclined plane of the V-shape funnel construction (11). Because the supporting body (13) which can provide the sealing pressure to the slit (12) is provided, when the one-way valve (1) is longitudinally compressed, the one-way valve (1) can provide sealing pressure to the slit (12) of the one-way valve (1) by reason of spring back force formed by longitudinal compression and achieve sealing effect.</p> |
