| 摘要 |
The hemostasis valve body (10) for use in an introducer which is integrally formed from an elastomeric material so as to exhibit resiliency and which is designed to close about small diameter objects, such as a guide wire and about larger diameter objects such as a working catheter or guide catheter to prevent air or blood leakage. The valve body (10) includes a proximal cylindrical member (40), a distal cylindrical member (20) and a central cylindrical member (30) which is spaced in its center portion from the proximal and distal members (40, 20) by chambers or cavities (41, 21). One of the proximal or distal cylindrical members (40, 20) has a bore (42, 22) of a relatively small diameter compared to that formed through the other and an angled slit is formed through the central member (30) in general alignment with the bores formed through the outer proximal and distal cylindrical members (40, 20). |
