Hemostasis valve

Details Hemostasis valve Hemostasis valve

1988-11-21

1990-06-12

Chambers, A. Michael

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

604256, 604905, F16L 3728

Patent

active

049326333

ABSTRACT:
A hemostasis valve gasket 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 gasket includes a proximal cylindrical member, a distal cylindrical member and a central member which is spaced in its center portion from the proximal and distal members by chambers or cavities. One of the proximal or distal cylindrical members has a bore of a relatively small diameter compared to that formed through the other and an angled slit is formed through the central member in general alignment with the bores formed through the outer proximal and distal cylindrical members.

REFERENCES:
patent: 3837381 (1974-09-01), Arroyo
patent: 4000739 (1977-01-01), Stevens
patent: 4430081 (1984-02-01), Timmermans
patent: 4436519 (1984-03-01), O'Neill
patent: 4547194 (1985-10-01), Moorehead
patent: 4626245 (1986-12-01), Weinstein

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