Technology & Platform

In order to meet patients‘ need for silent, fast and efficient delivery of nebulised liquid drug products, PARI developed the eFlow Technology.

A core component of all eFlow Technology nebulisers is a laser drilled, vibrating membrane made from stainless steel. Using a tightly controlled laser drilling process, the geometry of the holes in the membrane can be adjusted to certain formulations to produce aerosols with specific characteristics for optimised respiratory delivery.

All eFlow Technology nebulisers for spontaneously breathing patients utilise a patented aerosol chamber with inspiratory and expiratory valves. The aerosol is generated continuously into this chamber by the vibrating membrane. During the inhalation phase, the aerosol is inhaled as emitted from the vibrating membrane while it is stored in the aerosol chamber during the exhalation phase (the patient’s exhaled air escapes through the expiratory valve). The stored aerosol is inhaled as a dense aerosol bolus at the onset of the following inhalation. This design reduces nebulisation time and increases delivery efficiency as the aerosol produced during the exhalation phase is largely conserved in the chamber and delivered to the patient.