Patent ID: 11918733
Assignee: ERBE ELEKTROMEDIZIN GMBH
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A

Claim 9:
10. A system for generating and dispensing an aerosol, comprising:
a generation device (12) for generating an aerosol including a mixing unit (25) for mixing a liquid and a pressurized gas from a pressurized gas source (36) together to form the aerosol, wherein the mixing unit (25) is connected to a liquid container (49) for supplying the mixing unit (25) with the liquid, wherein the generation device (12) is adapted to utilize the pressurized gas to apply pressure to the liquid for expelling the liquid out of the liquid container (49) into the mixing unit (25);
wherein the liquid container (49) is a compressible bag hung from a suspension device within a pressurizable container (45), and wherein the pressurizable container (45) is operably connected to the generation device (12) for receiving the pressurized gas to pressurize the pressurizable container (45); and
a medical instrument having an aerosol outlet (16) for dispensing the aerosol generated by the generation device (12) onto or into a patient, wherein the medical instrument (10) is fluidically connected to the generation device (12) by an aerosol line (20);
wherein the mixing unit (25) has a channel (26) with a constriction (27), wherein the channel (26) is configured to be connected to the pressurized gas source (36) upstream of the constriction (27) for supplying the pressurized gas to the mixing unit (25), wherein the liquid container (49) is connected to the channel (26) at the constriction (27) and/or downstream of the constriction (27), in order to convey the liquid out of the liquid container (49) into the channel (26) via a reduction of pressure in the channel (26) induced by the pressurized gas flowing through the constriction;
wherein the mixing unit (25) comprises a T-connector, wherein the constriction (27) is located at a first port of the T-connector, a second line (44) extends between a second port of the T-connector and the pressurizable container (45), and a third port of the T-connector is configured to be connected to the pressurized gas source (36), such that, in use, the pressurized gas source (36) supplies the constriction (27) with the pressurized gas, as well as provides the pressurized gas for applying positive pressure to the liquid.