Koninklijke Philips Corporation N.v.

Mark Christopher McDermott

William Anthony Truschel

Winslow Kevin Duff

Christopher Wayne McDaniel

Anandi Mahadevan

Michael H Kissel

Ljubisa Milojevic

Ronald Cyprowski

Christopher Anthony Procyk

Cheryl Lin Needham

Peter Douglas Hill

Robert Romano

Kenneth E Cole

Seunghyun Lee

Richard Anthony Bates

Andrew L Shissler

William A Truschel

Ray Hoffman

Richard Grace

A system for determining an airway flow value in a patient is provided. The system comprises a computer system that comprises one or more physical processors programmed with computer program instructions which, when executed cause the computer system to obtain, from one or more health monitoring devices, airway pressure information of the patient and airway flow information of the patient; determine an airway flow limitation index from the airway pressure information of the patient and the airway flow information of the patient; and determine the airway flow limitation value for the patient by comparing the determined airway flow limitation index with an airway flow limitation threshold value. The airway flow limitation value indicates a number of breaths of the patient that are flow limited in a given time period.

Determining an airway flow limitation value

A ventilator that is small, lightweight, and portable, yet capable of being quickly adapted to operate in a plurality of different modes and configurations to deliver a variety of therapies to a patent. A porting system having a plurality of sensors structured to monitor a number of parameters with respect to the flow of gas, and a number of porting blocks is used to reconfigure the ventilator so that it operates as a single-limb or dual limb ventilator. In the single-limb configuration, an active or passive exhaust assembly can be provided proximate to the patient. The ventilator is capable of operate in a volume or pressure support mode, even in a single-limb configuration. In addition, a power control mechanism controls the supply of power to the ventilator from an AC power source, a lead acid battery, an internal rechargeable battery pack, and a detachable battery pack.

Volume control in a medical ventilator

The present disclosure pertains to a system for controlling a leak flow rate during respiratory therapy. The system is configured to determine a leak flow rate necessary for COexpulsion for an individual subject and facilitate control of the leak flow rate during therapy such that the system exhausts substantially the entire exhaled volume of gas during an expiration of the subject. The system facilitates control of the leak flow rate during therapy via an adjustable leak valve. Determining the leak flow rate for the subject and facilitating control of the leak rate may minimize noise from air flow in the system, minimize the power draw needed by a pressure generator of the system, reduce a loss of medicine added to the respiratory therapy gas, and/or have other advantages, while still expelling the desired amount of CO.

System and method for controlling leak

A ventilator that is small, lightweight, and portable, yet capable of being quickly adapted to operate in a plurality of different modes and configurations to deliver a variety of therapies to a patient. A porting system having a plurality of sensors structured to monitor a number of parameters with respect to the flow of gas, and a number of porting blocks is used to reconfigure the ventilator so that it operates as a single-limb or dual limb ventilator. In the single-limb configuration, an active or passive exhaust assembly can be provided proximate to the patient. The ventilator is capable of operate in a volume or pressure support mode, even in a single-limb configuration. In addition, a power control mechanism controls the supply of power to the ventilator from an AC power source, a lead acid battery, an internal rechargeable battery pack, and a detachable battery pack.

Systems and methods for synchronizing machine-induced inexsufflation with diaphragmatic pacing of a subject, e.g. through a diaphragm pacer, use the detected onset of an inhalation and/or exhalation of a subject. The detection is based on output signals generated by one or more sensors.

Synchronizing mechanical in-exsufflation and diaphragmatic pacing

Sleep apnea can be treated using positive airway pressure. Methods and systems for determining a level of airway obstruction allow beneficial adjustments to the level of expiratory positive airway pressure used to treat a subject.

Systems and methods for treating sleep apnea

A pressurized flow of breathable gas is delivered to the airway of a subject in accordance with a therapy regimen. The therapy regimen calls for maintenance of an average tidal volume. The therapy ensures that the subject breaths at a therapeutic breath rate. The breath rate may be determined dynamically based on breathing of the subject early on in a therapy session and/or based on a detected wakefulness of the subject. Inspiration for spontaneous and non-spontaneous breaths may be supported at different levels. The therapy regimen further maintains a beneficial positive end expiratory pressure, to reduce respiratory obstructions and/or for other purposes.

Obesity hypventilation syndrome treatment system and method

Porting block for a medical ventilator

A method of operating a ventilator that includes steps of (a) providing a specified ventilation therapy to a patient through a ventilator according to a specification; (b) determining and storing a backup parameter relating to the operation of the ventilator or the breathing of the patient during the step of providing the specified ventilation therapy; (c) determining that an alarm condition exists that indicates a problem with the ventilator that would prevent the ventilator from providing the specified ventilation therapy to the patient according to the specification; and (d) responsive to determining that the alarm condition exists, providing backup ventilation therapy to the patient through the ventilator that is based at least partially on the stored backup parameter. Also, a ventilator that is adapted to perform the method just described.

Growing community of inventors

Pittsburgh, PA, United States of America

Mark Christopher McDermott