Mouth piece for inhalation therapy units

US6606990B2 · kind B2 · utility

Assignee

• PARI GmbH Spezialisten für effektive Inhalation · DE

Inventors

• Kevin Stapleton · Seattle, US
• Robert Waldner · Peiting, DE
• Thomas Gallem · Hersbruck, DE
• Martin Knoch · Starnberg, DE

Key dates

• Filing date: Dec 30, 1998
• Grant date: Aug 19, 2003
• Expiry date: Dec 30, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M16/049
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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.