METHOD OF DELIVERING A DOSE OF A FLUID COMPOSITION FROM A MICROFLUIDIC DELIVERY CARTRIDGE

摘要

Microfluidic delivery systems and methods for dispensing a fluid composition into the air comprising microfluidic die and at least one heating element that is configured to receive an electrical signal comprising a certain on-time and wave form to deliver a fluid composition into the air.

主权项

1. A method of delivering a dose of a liquid composition from a microfluidic delivery refill, wherein the liquid composition comprises volatile components such that the liquid composition is defined by a boiling point temperature, and wherein the microfluidic delivery refill comprises a reservoir enclosing the liquid composition and a microfluidic delivery member comprising a heater in fluid communication with the reservoir, the method comprising:
receiving an electrical signal with the heater of the microfluidic delivery member, wherein the electrical signal comprises a plurality of firing pulses that each alternate between a relatively low amplitude and a relatively high amplitude; activating the heater of the microfluidic delivery member in response to the relatively high amplitude of each of the firing pulses of the electrical signal, wherein, when the heater is activated, the temperature of the heater is greater than the boiling point temperature of the liquid composition; utilizing an amount of energy while the heater is activated, wherein the amount of energy is between about 33 Milliwatts and about 8.5 Watts; and vaporizing at least a portion of the volatile components of the liquid composition when the heater is activated, whereby the dose of the liquid composition is delivered by the microfluidic delivery member.