Abstract: A ventilatory valve controls a pressure level in a patient breathing circuit of an anesthetic breathing apparatus. The ventilatory valve has a valve unit having a controllable restriction to control the pressure level in an expiratory branch of the breathing circuit of the anesthetic breathing apparatus, an electrical operating unit for the valve unit, configured to electrically control the restriction during electrical operation of the anesthetic breathing apparatus, and a non-electrical operating unit (100) for the valve unit, configured to non-electrically control the restriction upon electrical defective or powerless operation of the anesthetic breathing apparatus.

Abstract: A ventilatory valve controls a pressure level in a patient breathing circuit of an anesthetic breathing apparatus. The ventilatory valve has a valve unit having a controllable restriction to control the pressure level in an expiratory branch of the breathing circuit of the anesthetic breathing apparatus, an electrical operating unit for the valve unit, configured to electrically control the restriction during electrical operation of the anesthetic breathing apparatus, and a non-electrical operating unit (100) for the valve unit, configured to non-electrically control the restriction upon electrical defective or powerless operation of the anesthetic breathing apparatus.

Abstract: A manual input-output device in a breathing apparatus, such as an anesthesia system, has a manual input for adjusting at least one patient critical operating parameter of the breathing apparatus. The manual input-output device is programmable for a haptic feedback and has an operating member for the manual input and a manual output, a detecting unit that detects a movement of the operating member, and a haptic feedback unit that applies a mechanical output to the operating member depending on the movement detected. The manual input-output device can be used for adjusting an opening pressure level of an adjustable pressure limiting (APL) valve.