Huff Cough simulation device

Inventors

Costella, Stephen • Morton, Robert • Schmidt, James

Assignees

Trudell Medical International

Abstract

A respiratory treatment device having an inlet configured to receive exhaled air into the device, an outlet configured to permit exhaled air to exit the device, a valve moveable in response to a threshold exhalation pressure at the inlet between a closed position where the flow of air from the inlet to the outlet is restricted, and an open exhalation position where the flow of air from the inlet to the outlet is less restricted, and a valve brace configured to support the valve, wherein a position of the valve brace relative to the valve is selectively adjustable to increase or decrease the threshold exhalation pressure.

Core Innovation

The invention describes a respiratory treatment device that receives exhaled air at an inlet and permits exhaled air to exit at an outlet. A valve is moveable between a closed position and an open exhalation position in response to a threshold exhalation pressure at the inlet, and in the closed position, a flow of air from the inlet to the outlet is restricted while in the open exhalation position the flow is less restricted.

A valve brace supports the valve, and a position of the valve brace relative to the valve is selectively adjustable to increase or decrease the threshold exhalation pressure. The valve is configured to remain in the open exhalation position during the flow of air from the inlet to the outlet, so that the valve does not move away from the open exhalation position while exhaled air is flowing through the device.

In additional embodiments, the valve is moveable in response to an inhalation pressure at the inlet between a closed position and an open inhalation position where the flow of air from the outlet to the inlet is less restricted. In still further embodiments, the device includes a reset button configured to return the valve from the open exhalation position to the closed position, with the reset button interacting with the valve brace to enable threshold adjustment.

Claims Coverage

The partial document includes three independent claims. Across these claims, the coverage centers on a valve that switches between closed and open exhalation positions based on a threshold exhalation pressure, a selectively adjustable valve brace that sets that threshold, and additional independent-scope language on inhalation behavior and a reset button returning the valve to the closed position.

The inventive coverage is directed to controlling exhaled-air flow through an inlet-to-outlet valve that changes state based on a threshold exhalation pressure, where the threshold is set by a selectively adjustable valve brace. The independent claims further limit valve behavior by requiring the valve to remain open during exhalation flow and by adding inhalation-pressure responsiveness and a reset button that returns the valve to the closed position.

Stated Advantages

Documented Applications

No documented applications found