Device for flow rate limitation at low differential pressures
AssigneeActivaero GmbH
InventorsMartin Huber, Tobias Kolb, Bernhard Müllinger
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Abstract
The invention relates to a device for the flow rate limitation at low differential pressures, in particular for the limitation of the inhalation volume flow during the inhalation of therapeutic aerosols, comprising a housing with at least an inlet opening, at least an outlet opening and a flow channel arranged therebetween, wherein the flow channel is restricted by a flexible wall extending along the flow channel, characterised in that the flexible wall has a control area of less than 100 mm2.
Claims21
A device for flow rate limitation at low differential pressures, the device comprising:
- a housing with at least an inlet opening, at least an outlet opening and a flow channel arranged therebetween, the flow channel having a cross-section;
- and
- a flexible wall extending along the flow channel and restricting the cross-section of the flow channel, thereby limiting an inhalation volume flow during inhalation of therapeutic aerosols;
- wherein the flexible wall has a control area A of less than 100 mm2.
A device for limiting flow rate at low differential pressures, the device comprising:
- a housing with at least an inlet opening, at least an outlet opening and a flow channel arranged therebetween, the flow channel having a flow channel cross-section;
- and
- a flexible wall extending along the flow channel and restricting the cross-section of the flow channel, thereby limiting an inhalation volume during inhalation of therapeutic aerosols;
- wherein the flow channel cross-section in neutral state has a minimum in flow direction.
Dependencies are inferred from the claim text.