AN IMPELLER FOR A RESPIRATORY DEVICE

• Main Authors: CARIOLA, Melanie Lucia, SPINDLER, Ryan, KENYON, Barton John, VERMA, Hargopal
• Format: Patent
• Language: English; French; German
• Published: 30.08.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DEVICES FOR VENTING OR AERATING; DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING; ENGINEERING ELEMENTS AND UNITS; FIRE-FIGHTING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HUMAN NECESSITIES; HYGIENE; LIFE-SAVING; LIGHTING; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The present invention discloses a compact respiratory therapy device suitable for use by a patient during sleep to provide respiratory pressure therapy, the device comprising: a housing; an inlet; an outlet; a motor including a rotor; an impeller configured to be rotated by the rotor to deliver a flow of air from the inlet toward the outlet, the impeller comprising: a first moulded part comprising a plurality of impeller blades, each impeller blade comprising a leading edge and a trailing edge; and a first shroud comprising a wall defining a periphery of a center opening of the impeller, the center opening providing an impeller inlet of a flow passage through the impeller; and a second moulded part comprising a hub structured for coupling to the rotor and a second shroud, wherein the compact respiratory therapy device is configured to deliver the flow of air from the outlet for delivery to the patient at a pressure between 4-30 cmH2O at an overall sound power level of less than 50 dB (A) thereby reducing any disturbance to a quality of sleep for the patient, and wherein: a diameter of the impeller is less than about 50 mm, and each shroud at least partly defines a flow passage through the impeller.