Patent ID: 7059324
Filing Date: 2006-06-13
Classification: A61M,A63B

Abstract:
1. An oscillatory positive expiratory pressure therapy device, comprising: an air-flow tube having a path of air flow movement from an inlet opening for receiving expiratory air passed thereto by a user receiving respiratory therapy or care, through an outlet opening for discharging the expiratory air passed through said inlet opening; said air-flow tube including expiratory air responsive closure means positioned in said path of air flow movement and actuable between an open position and a closed position in response to the pressure of expiratory air passed thereto; said expiratory air responsive closure means including a normally closed non-linear discharge outlet which is opened in response to the presence of a predetermined pressure of expiratory air being passed in said path of air flow movement, and which closes in response to a predetermined rate of air pressure decrease through said non-linear discharge opening; and said expiratory air responsive closure means further including a cone-shaped closure member movable in response to expiratory air pressure between a closed position blocking the flow of expiratory air in said path of air flow movement and an open position permitting the flow of expiratory air in said path of air flow movement.