Peter W Richardson

US Patent:

8381723, Feb 26, 2013

Filed:

Oct 6, 2010

Appl. No.:

12/899323

Inventors:

Robert M. DiBlasi - Snoqualmie WA, US
Jay C. Zignego - Vancouver WA, US
Thomas N. Hansen - Mercer Island WA, US
Charles V. Smith - Mercer Island WA, US
Peter Richardson - Shoreline WA, US

Assignee:

Seattle Children's Hospital - Seattle WA

International Classification:

A62B 7/00
A62B 9/00

US Classification:

12820418, 12820024

Abstract:

It has been discovered that high amplitude, low frequency, broadband spectrum pressure oscillations of sufficient time duration can help stabilize lung volumes and improve gas exchange in a patient receiving ventilation assistance by helping to recruit and stabilize alveoli. A novel device is presented which can produce pressure oscillations having high amplitudes, a low broad-band frequency spectrum and long time duration. Additionally, the device can maintain a patient's mean airway pressure at one or more controlled levels. The device can control the oscillatory amplitude, frequency range and composition, time duration, and mean airway pressure levels by adjusting certain device parameters, such as the angle and depth of the device in a fluid. A device and mechanical system for remotely adjusting and measuring the angle of the device in a fluid are also disclosed. Furthermore, a device and system are disclosed that can deliver pressure oscillations having high amplitudes, a low broad-band frequency spectrum, long time duration, and multiple mean airway inspiratory and expiratory pressure levels.

US Patent:

8499759, Aug 6, 2013

Filed:

Oct 6, 2010

Appl. No.:

12/899177

Inventors:

Robert M. DiBlasi - Snoqualmie WA, US
Jay C. Zignego - Vancouver WA, US
Thomas N. Hansen - Mercer Island WA, US
Charles V. Smith - Mercer Island WA, US
Peter Richardson - Shoreline WA, US

Assignee:

Seattle Children's Hospital - Seattle WA

International Classification:

A62B 7/00
A62B 9/00

US Classification:

12820418, 12820024

Abstract:

It has been discovered that high amplitude, low frequency, broadband spectrum pressure oscillations of sufficient time duration can help stabilize lung volumes and improve gas exchange in a patient receiving ventilation assistance by helping to recruit and stabilize alveoli. A novel device is presented which can produce pressure oscillations having high amplitudes, a low broad-band frequency spectrum and long time duration. Additionally, the device can maintain a patient's mean airway pressure at one or more controlled levels. The device can control the oscillatory amplitude, frequency range and composition, time duration, and mean airway pressure levels by adjusting certain device parameters, such as the angle and depth of the device in a fluid. A device and mechanical system for remotely adjusting and measuring the angle of the device in a fluid are also disclosed. Furthermore, a device and system are disclosed that can deliver pressure oscillations having high amplitudes, a low broad-band frequency spectrum, long time duration, and multiple mean airway inspiratory and expiratory pressure levels.