EAR-DRIVEN AIR PUMP FOR PATIENT INTERFACES
First Claim
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1. Gas supply system for a patient interface for supplying a flow of pressurized gas to a subject, with:
- at least one pump device, comprising;
at least two membranes, each membrane comprising at least one electro-active polymer material, andat least one valve; and
a controller, for controlling the at least one pump device,wherein the pump device comprises at least one closed volume, andwherein the membranes are arranged on opposite sides of the closed volume such that they are in operative communication with the at least one closed volume and are further designed for altering the size of the at least one closed volume based on actuation by the electro-active polymer material in a periodic way resulting in a flow of pressurized gas.
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Abstract
The present invention relates to a gas supply system (10) for a patient interface (30) for supplying a flow of pressurized gas to a subject (50), an according patient interface (30) with such a gas supply system (10) and a therapy device with such a gas supply system. The gas supply systems according to the present invention comprise a pump device (55) that has at least one membrane (58) for pumping actuation. This membrane (58) is actuated via an electro-active polymer material (60).
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Citations
15 Claims
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1. Gas supply system for a patient interface for supplying a flow of pressurized gas to a subject, with:
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at least one pump device, comprising; at least two membranes, each membrane comprising at least one electro-active polymer material, and at least one valve; and a controller, for controlling the at least one pump device, wherein the pump device comprises at least one closed volume, and wherein the membranes are arranged on opposite sides of the closed volume such that they are in operative communication with the at least one closed volume and are further designed for altering the size of the at least one closed volume based on actuation by the electro-active polymer material in a periodic way resulting in a flow of pressurized gas. - View Dependent Claims (2, 3, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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4-5. -5. (canceled)
Specification