Press-down valve for medical instruments for suction and irrigation
First Claim
1. A press-down valve for mounting in a medical instrument for suction and irrigation, comprisinga valve stem;
- a pretensioned spring permanently pressing said valve stem into a closure position closing a flow through said valve;
an actuation element which can be activated by one hand and by means of which said valve stem can be moved counter to a force of said spring into an open position, and, after release of said actuation element, said valve stem is moved into said closure position; and
wherein a catch mechanism is provided by means of which said valve stem can be locked in said open position only when said press-down valve has been removed from said medical instrument, and, when said press-down valve is installed in said medical instrument, said catch mechanism is automatically released and remains released.
2 Assignments
0 Petitions
Accused Products
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.
65 Citations
36 Claims
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1. A press-down valve for mounting in a medical instrument for suction and irrigation, comprising
a valve stem; -
a pretensioned spring permanently pressing said valve stem into a closure position closing a flow through said valve; an actuation element which can be activated by one hand and by means of which said valve stem can be moved counter to a force of said spring into an open position, and, after release of said actuation element, said valve stem is moved into said closure position; and wherein a catch mechanism is provided by means of which said valve stem can be locked in said open position only when said press-down valve has been removed from said medical instrument, and, when said press-down valve is installed in said medical instrument, said catch mechanism is automatically released and remains released. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A medical instrument for suction and irrigation, having a press-down valve comprising
a valve stem; -
a pretensioned spring permanently pressing said valve stem into a closure position closing a flow through said valve; an actuation element which can be activated by one hand and by means of which said valve stem can be moved counter to a force of said spring into an open position, and, after release of said actuation element, said valve stem is moved into said closure position; and wherein a catch mechanism is provided by means of which said valve stem can be locked in said open position only when said press-down valve has been removed from said medical instrument, and, when said press-down valve is installed in said medical instrument, said catch mechanism is automatically released and remains released. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification