Anesthetic syringe having a longitudinally displaceable feeding piston and check valve having passage and blocking device
AssigneeSMJM Inject GmbH
InventorsChristian Stammen, Georg Wagner, Olivier Georg Reinertz, Roman Josef Jansen
Life of this patent
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Abstract
The invention relates to a syringe, particularly an anesthetic syringe, having a longitudinally displaceable feeding piston disposed over a first hydraulic chamber, and a second hydraulic chamber, wherein the first and second hydraulic chambers are connected by means of a first control element for regulating resistance, wherein the first control element can be actuated by a switch element, wherein the first control element comprises a first check valve.
Claims20
1-22. (canceled)
A syringe (1), more specifically an anesthetic syringe with a longitudinally displaceable feeding piston (7) which is movably disposed above a first hydraulic chamber (16) and with a second hydraulic chamber (19), the first and second hydraulic chamber being connected by means of a first control element for regulating resistance, the first control element (60) being operable by means of a switch element, and the switch element being an actuating pin (50), wherein the actuating pin is assigned to a first check valve (65), so that the first check valve (65) can be actuated by means of the actuating pin.
Dependencies are inferred from the claim text.