The invention describes a mouthpiece for an inhalation therapy unit wherein an aerosol for inhalation is prepared for a patient, said mouthpiece comprising a substantially tubular base (1), in the wall of which an orifice (2) is formed, and a flat, elastic valve member (3), which is adapted in dimen
The invention describes a mouthpiece for an inhalation therapy unit wherein an aerosol for inhalation is prepared for a patient, said mouthpiece comprising a substantially tubular base (1), in the wall of which an orifice (2) is formed, and a flat, elastic valve member (3), which is adapted in dimension and shape to the orifice (2) for the closing thereof and which is secured to the mouthpiece in such a manner that during an inspiration process through the mouthpiece the orifice (2) is closed and during an expiration process directed into the mouthpiece the orifice (2) is opened. According to the invention, at least one enlarged contact surface (6, 8, 11, 13, 15, 16) is provided at the orifice (2) for the accumulation and holding of an amount of liquid by adhesion. This contact surface is established both by an outwardly directed collar (6, 8, 11) surrounding the orifice and by a narrow bar (13, 15, 16) which extends into the orifice (2) for example transversely through the center of the orifice in longitudinal direction of the mouthpiece or transversely across the mouthpiece.
대표청구항▼
1. A mouthpiece for inhalation therapy units in which an aerosol for inhalation by a patient is produced, comprising: a substantially tubular base having a sidewall and an orifice defined in the sidewall; a flat elastic valve member having a size and shape suitable for closing the orifice, havin
1. A mouthpiece for inhalation therapy units in which an aerosol for inhalation by a patient is produced, comprising: a substantially tubular base having a sidewall and an orifice defined in the sidewall; a flat elastic valve member having a size and shape suitable for closing the orifice, having one portion secured to the base and a second portion that is free, whereby during inhalation through the mouthpiece the orifice is closed and during exhalation into the mouthpiece the orifice is opened by movement of the free end of the valve member away from the base; and a contact area for accumulating and holding by adhesion liquid from aerosol to be inhaled and thereby avoiding the accumulation of liquid from aerosol for inhalation on the valve member, wherein the contact area is provided opposite, with respect to the orifice, to a place where the valve member is secured to the base and the contact area comprises a collar extending outward from the base, the collar having an edge that forms an abutment surface for the valve member. 2. A mouthpiece according to claim 1, wherein the edge that forms an abutment surface is an upper edge of the collar. 3. A mouthpiece for inhalation therapy units in which an aerosol for inhalation by a patient is produced, comprising: a substantially tubular base having a sidewall and an orifice defined in the sidewall; a flat elastic valve member having a size and shape suitable for closing the orifice, having one portion secured to the base and a second portion that is free, whereby during inhalation through the mouthpiece the orifice is closed and during exhalation into the mouthpiece the orifice is opened by movement of the free end of the valve member away from the base; a contact area for accumulating and holding by adhesion liquid from aerosol to be inhaled and thereby avoiding the accumulation of liquid from aerosol for inhalation on the valve member; and a bar extending across the orifice, wherein the bar has an upper edge that is below and spaced from the valve member when the valve member is in a resting position. 4. A mouthpiece according to claim 3, wherein the contact area is provided opposite, with respect to the orifice, to a place where the valve member is secured to the base. 5. A mouthpiece according to claim 4, wherein the contact area comprises a collar extending outward from the base, the collar having an edge that forms an abutment surface for the valve member. 6. A mouthpiece according to claim 3, wherein in the bar extends in a longitudinal direction of the base. 7. A mouthpiece according to claim 3, wherein the bar extends into the interior of the base beyond an inner surface of the sidewall of the base. 8. A mouthpiece according to claim 7, wherein the bar extends outside the edges of the orifice.
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이 특허에 인용된 특허 (14)
Smith Collin M. (New South Wales AUX), Aerosol inhalation device.
Newhouse Michael T. (436 Queen Street South Hamilton ; Ontario CAX L8N 4A6) Baines W. Douglas (1675 Wedmore Way Mississauga ; Ontario CAX), Dry powder inhaler and process that explosively discharges a dose of powder and gas from a soft plastic pillow.
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