Press-down valve for medical instruments for suction and...

Details Press-down valve for medical instruments for suction and... Press-down valve for medical instruments for suction and...

2006-06-20

2009-02-03

Bastianelli, John (Department: 3753)

Valves and valve actuation

With means for blocking or disabling actuator

Actuator, or blocking means, includes flow path joint

C251S095000, C251S149900, C604S167030, C604S246000

Reexamination Certificate

active

07484709

ABSTRACT:
A press-down valve is provided for medical instruments for suction and irrigation and a medical instrument having installed such a press-down valve. A valve stem is pressed permanently into a closure position via a pretensioned spring. For actuation, the valve stem is moved counter to the force of the spring via an actuation element, and, after release, the spring presses the valve stem back into the closure position. A catch mechanism is provided by means of which the valve stem can be locked in the open position only when the press-down valve has been removed from the medical instrument, and that, when it is installed in the medical instrument, the catch mechanism is automatically released and remains released.

REFERENCES:
patent: 4836199 (1989-06-01), Palmer
patent: 5228646 (1993-07-01), Raines
patent: 5348555 (1994-09-01), Zinnanti
patent: 5554112 (1996-09-01), Walbrink et al.
patent: 5658249 (1997-08-01), Béland et al.
patent: 5840016 (1998-11-01), Kitano et al.
patent: 5871441 (1999-02-01), Ishiguro et al.
patent: 6364853 (2002-04-01), French et al.
patent: 6447473 (2002-09-01), Levine et al.
patent: 1 313 353 (1973-04-01), None
patent: 10-52399 (1998-02-01), None
European Search Report, Oct. 9, 2006, 6 pages.
Karl Storz's Catalog, Endoskope Und Instrumente Fuer HNO, 7. Edition, Feb. 2004, p. 104, 2 pages.

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