Aerosol generator

An electrically driven aerosol generator device for aerosolization of a medicament from an upstream medicament supply to a downstream exit, comprising:

• an aperture plate;
• a piezoelectric ring;
• a carrier washer, the piezoelectric ring and aperture plate being coupled to the carrier washer to form a subassembly;
• a non-removable inner subassembly support element;
• and
• an outer subassembly support element, the non-removable inner subassembly support element being located upstream of the aperture plate and the outer subassembly support element being located downstream of the aperture plate, and
• the non-removable inner subassembly support element including a ring located adjacent the aperture plate during aerosolization of the medicament from the device, the ring having a radially central diameter smaller than a radially central diameter of the outer subassembly support element at a location of the outer subassembly support element adjacent the subassembly, and the ring providing a seal between the aperture plate and the piezoelectric ring.

An electrically driven aerosol generator, comprising:

• an aperture plate, the aperture plate being dome-shaped and including a dome apex positioned along a longitudinal axis of the aperture plate;
• a piezoelectric ring;
• a carrier washer, the piezoelectric ring and aperture plate being coupled to the carrier washer to form a subassembly;
• an inner subassembly support element;
• and an outer subassembly support element, the inner subassembly support element including a non-removable ring located adjacent the aperture plate, the non-removable ring having a radially central diameter smaller than a radially central diameter of the outer subassembly support element at a location of the outer subassembly support element adjacent the subassembly, and the non-removable ring providing a seal between the aperture plate and the piezoelectric ring;
• and
• the outer subassembly support element radially overlapping with a radial position of the piezoelectric ring;
• wherein the apex of the aperture plate is closer to the outer subassembly support element than the inner subassembly support element relative to the longitudinal axis.