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AssigneeLa Diffusion Technique Francaise
InventorsLaurent Vecellio-None, Michel Massardier, Gilles Chantrel
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An aerosol transfer device for medical aerosol generators comprises an elongate shaped hollow member, located in a vertical plane constituting an aerosol storage area. The member has a first opening allowing entry of outside air. The first opening is located on an upper or lower horizontal surface of the member to ensure vertical air entry. A second opening opposite said first opening allows escape of aerosol, and a third opening serves for spraying aerosol into the storage area in the vertical plane and in axial alignment with the air inlet opening. The member has a minimum height of 6 cm and allows dispersion of the sprayed aerosol without recycling aerosol deposited on the walls. The member is located between an aerosol generator source and a patient interface and does not include any valve on the aerosol path from the storage area to the patient.
An aerosol transfer device for a medical aerosol generator comprising an elongate shaped hollow member oriented in a vertical direction during use and constituting an aerosol storage area, said elongate shaped hollow member having a first air entry opening for introducing outside air from outside the storage area into the storage area during an inhalation phase of operation of the device, and said air entry opening being located on an upper or lower horizontal surface of said elongate shaped hollow member in order to ensure vertical entry of the outside air into said elongate shaped hollow member, a second opening and a third opening located near an opposite end of said elongate shaped hollow member from said first opening, said second opening serving to eject aerosol from said elongate shaped hollow member, said third opening serving for vertically spraying aerosol into the storage area, said elongate shaped hollow member having a minimum height of 6 cm and wherein an upper part of the elongate shaped hollow member has a cylindrical neck and a lower part has a bottomless tapered configuration in order to enhance the transport of aerosol within the elongate shaped follow member allowing dispersion without recycling aerosol deposited on walls of said elongate shaped hollow member, said storage area being located between an aerosol generator source and a patient interface and allowing, via a transport area, aerosol transport to a patient, and wherein the device does not include any valve in a path the aerosol takes from the elongate shaped hollow member that constitutes the storage area to the patient, and wherein, during inhalation, the outside air is vertically introduced into said storage area through said first opening and aerosol travels vertically in said storage area and is ejected through said second opening.
An aerosol transfer device for a medical aerosol generator comprising an elongate shaped hollow member oriented in a vertical direction during use and constituting an aerosol storage area, said elongate shaped hollow member having a first air entry opening for introducing outside air from outside the storage area into the storage area during an inhalation phase of operation of the device, and said air entry opening being located on an upper or lower horizontal surface of said elongate shaped hollow member in order to ensure vertical entry of the outside air into said elongate shaped hollow member, a second opening located near an opposite end of said elongate shaped hollow member from said first opening , said second opening serving to eject aerosol from said elongate shaped hollow member, and a third opening for vertically spraying aerosol into the storage area, said elongate shaped hollow member having a minimum height of 6 cm and wherein an upper part of the elongate shaped hollow member has a cylindrical neck and a lower part has a bottomless tapered configuration in order to enhance the transport of aerosol within the elongate shaped follow member allowing dispersion storage area without recycling aerosol deposited on walls of said elongate shaped hollow member, said storage area being located between an aerosol generator source and a patient interface and allowing, via a transport area, aerosol transport to a patient, and wherein the device does not include any valve in a path the aerosol takes from the elongate shaped hollow member that constitutes the storage area to the patient, and wherein, during inhalation, the outside air is vertically introduced into said storage area through said first opening and aerosol travels vertically in said storage area and is ejected through said second opening, and, during exhalation, air exhaled by the patient is expelled via a valve from the transport area and no exhaled air flows through the storage area.
Dependencies are inferred from the claim text.