How ASV works

Author: Hamilton Medical, Reviewer: NA

The intelligent ventilation mode Adaptive Support Ventilation (ASV®) adjusts respiratory rate, tidal volume, and inspiratory time breath-by-breath, 24 hours a day, depending on the patient’s lung mechanics and effort.

ASV automatically employs lung-protective strategies to minimize complications from AutoPEEP and volutrauma/barotrauma. It also prevents apnea, tachypnea, dead space ventilation, and excessively large breaths. Within the rules of this lung-protective strategy, ASV encourages the patient to breathe spontaneously. The clinician sets the target minute volume and ASV automatically determines the combination of tidal volume and respiratory rate based on the minimal work of breathing principle described by Otis (1). ASV takes into account the patient’s respiratory mechanics, which are measured breath-by-breath by the proximal flow sensor, to ensure individualized ventilation for each patient.

ASV is available on all current-model Hamilton Medical ventilators.

Read more about ASV

Overview of all Hamilton Medical ventilators


  1. Otis AB. The work of breathing. Physiol Rev. 1954 Jul;34(3):449-58.


Product Category Type/Size Date / PN Language
New studies were added
ASV bibliography
1.3 MB



ASV brochure
1.8 MB



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asv, adaptive support ventilation, lung protective, volume-targeted, pressure-controlled, tidal volume

Date of Printing: 21.04.2021
The content of this Knowledge Base is intended for informational purposes only. Hamilton Medical AG provides no warranty with respect to the information contained in this Knowledge Base and reliance on any part of this information is solely at your own risk. For detailed instructions on operating your Hamilton Medical device, please refer to the official Hamilton Medical Operator’s Manual for the respective device.