Membrane nebulizer and method for welding a membrane to a carrier during the production of a membrane nebulizer
AssigneePARI Pharma GmbH
InventorsGerhard Pumm, René Seifert, Philipp Holzmann, Nicole Brune
Life of this patent
Estimating the term…
Abstract
A membrane nebulizer for producing aerosol in an aerosol therapy device includes a membrane having several through-holes for nebulizing a fluid; and a laminar carrier having an opening, the membrane being arranged in the opening and fastened to the carrier in such a way that the nebulizing occurs on a first side of the carrier and the fluid is present at the membrane on the opposite second side of the carrier, wherein the membrane is welded to the carrier by means of a resistance welding method.
Claims13
A membrane nebuliser for generating an aerosol in an aerosol therapy device, comprising:
- a membrane comprising an effective area having a plurality of through-holes for nebulising a fluid and a fixing area surrounding the effective area around its circumference;
- a planar carrier having an opening, said membrane being arranged in the opening and fixed to the carrier in such a manner that nebulisation occurs on a first side of the carrier and the fluid is present on the membrane on the opposite second side of the carrier, wherein
- the membrane is bulged and the fixing area is configured as a collar in surface contact with a side of the carrier and welded around its circumference to the carrier by means of a resistance welding method;
- and
- a piezo element attached to a side of the carrier.
A method for connecting a membrane and a planar carrier during manufacture of a membrane nebuliser of an aerosol therapy device, the membrane comprising an effective area, in which a plurality of through-holes for nebulizing a fluid are provided, and a collar for fixation to the carrier, which surrounds the effective area around its circumference, said method comprising the steps of:
- bringing a region of the collar of the membrane which is to be welded to the carrier into surface contact with said carrier;
- pressing a welding electrode having a closed cross section into surface contact with the collar;
- and
- resistance welding in the region of the collar so as to connect the membrane and the carrier.
Dependencies are inferred from the claim text.