| 摘要 |
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-shaped 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-shaped 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-shaped 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 unique design of the supporting body (13) will provide sealing pressure on the slit (12). This is due to the spring back force formed when the valve is compressed.
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