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US 7,059,324 B2Granted
Positive expiratory pressure device with bypass
AssigneeSmiths Medical ASD, Inc.
InventorsRichard K. Pelerossi, Gregory S. King, Jennifer M. Foran, Lawrence A. Weinstein, Fredrick M. Richards, Christopher T. Zirps, Robert H. Elden
Life of this patent
Estimating the term…
Abstract
A multi-use, hand held, single patient oscillatory positive expiratory pressure respiratory therapy device which is easily assembled and disassembled for cleaning, and which is not position dependent during therapy, but operable through a wide range of device orientation.
Claims22
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.
2 more elements
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 non-linear discharge outlet positioned in said path of air flow movement comprising a non-linear tapered discharge orifice.
2 more elements
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 non-linear discharge outlet positioned in said path of air flow movement comprising a bell-shaped discharge orifice.
2 more elements
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 non-linear discharge outlet positioned in said path of air flow movement comprising a trumpet-shaped air discharge outlet.
2 more elements
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
- a magnetic force field applying means for generating a biasing force effecting the opening and closing of said non-linear discharge opening.
2 more elements
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 being 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 comprising an oscillatory rocker assembly including a rocker portion pivotally supported on a rocker support portion.
2 more elements
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 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 discharge opening;
- and
- said expiratory air responsive closure means including a closure member pivotally 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.
2 more elements
A method of selectively effecting oscillatory positive expiratory pressure therapy in a patient, comprising:
- passing a flow of patient-induced expiratory air into an air-flow tube for passing the expiratory air in 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;
- blocking a discharge opening for expiratory air moving in said path of air flow movement and thereby increasing the expiratory air pressure as said expiratory air continues in said path of air movement;
- and
- opening said discharge opening in response to the increase of the expiratory air pressure to a predetermined level, and then reducing the expiratory air pressure at a variable rate by passing the discharge of expiratory air through a non-linear discharge orifice inducing an oscillatory positive expiratory pressure in the patient.
1 more element
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 at least two 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;
- and
- each one of 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.
1 more element
Dependencies are inferred from the claim text.