General Electric Company

Spacelabs Healthcare

Gary Choncholas

Ronald L Tobia

Cory R Boudreau

Andrew Levi

Bruce Dammann

Lee Dalgety

Jaron Matthew Acker

Robert Q Tham

John R Pinkert

Sheldon Roberts

Erik J Bluemner

Dorian Lust

Paul R Micheli

Barbara M Gosenheimer

Ben Schoepke

Paul Michell

Patrick Flanagan

The specification describes anesthesia systems with an integrated, extendable clinical center and clinician/anesthesia office that accommodates for physical separation of clinical and clerical functions. The disclosed anesthesia systems allow for a portion of the system to be brought closer to the patient such that clinical controls can be accessed while tending to the patient airway, without compromising office space available to the clinician or crowding the patient area.

Integrated, extendable anesthesia system

The anesthesia systems have an integrated, extendable clinical center and clinician/anesthesia office that accommodates for a physical separation of clinical and clerical functions. The anesthesia system includes an alarm reversion system which enables a predefined alarm limit to be set and then to be automatically reverted back to an alarm limit existing just before the predefined alarm limit was set.

The disclosed anesthesia systems provide an integrated, extendable clinical center and clinician/anesthesia office that accommodates for physical separation of clinical and clerical functions. The disclosed anesthesia systems allow for a portion of the system to be brought closer to the patient such that clinical controls can be accessed while tending to the patient airway, without compromising office space available to the clinician or crowding the patient area.

An input device for a clinician to control and modify the operation of a mechanical ventilator comprises a graphical display, a representation of a respiratory therapy trajectory to be delivered to a patient, at least one data point associated with the trajectory, and a data input means for the clinician to select a data point and to modify the value of the trajectory at that data point. The present invention provides for the creation and modification of a respiratory therapy trajectory, wherein the ventilator provides a medical gas waveform to a patient according to the respiratory therapy trajectory.

Device and method for graphical mechanical ventilator setup and control

A method of providing a recruitment procedure to a patient includes monitoring at least one derecruitment event. A score is calculated for the at least one derecruitment event. A derecruitment score is aggregated. The derecruitment score is compared to a recruitment threshold. A ventilator is operated with the processor to perform a recruitment procedure. A system for providing mechanical ventilation to a patient includes a mechanical ventilator configured for pneumatic connection to a patient in order to deliver medical gas to the patient. A peripheral system is configured to provide medical assistance to the patient and the peripheral system produces a signal indicative of the operation of the peripheral system. A processor is communicatively connected to the mechanical ventilator in the peripheral system. The processor receives the signal from the peripheral system and calculates a first score from the signal. The processor aggregates the first score into a derecruitment score and compares the derecruitment score to a predetermined threshold. The processor operates the mechanical ventilator to provide a recruitment procedure to the patient.

System and method of automated lung recruitment maneuvers

A patient ventilator for assisting a clinician in determining a suitable PEEP for the patient. The amount of the lung volume recruited/de-recruited at various levels of PEEP may be determined for use in selecting a desired PEEP. To this end, the functional residual capacity of the lungs is determined for a first PEEP level. The PEEP is then altered to a second level and a spirometry dynostatic curve of lung volume and pressure data is obtained. The lung volume on the dynostatic curve at a lung pressure corresponding to the first PEEP value is obtained. The difference between the functional residual capacity of the lungs at the first PEEP level and that determined from the dynostatic curve represents the lung volume recruited/de-recruited when changing between said first and second PEEPs.

Apparatus and method for identifying FRC and PEEP characteristics

A method for controlling a mechanical ventilator that is supplying medical gas to a patient via an endotracheal tube. A pressure is measured from a patient end of an endotracheal tube. The pressure at the patient end of the endotracheal tube is used to create an improved endotracheal tube resistance model such that the medical gas supplied by the mechanical ventilator may be compensated for the resistance of the endotracheal tube thereby providing increased control over the medical gas that is delivered to the patient's lungs. Additionally, if an obstruction in the patient's airway is detected, the location of the obstruction may be targeted such that the proper remedial treatment or procedure is selected by a clinician.

Method and apparatus for airway compensation control

A ventilator for ventilating a patient has means integrated therewith for carrying out a determination of the functional residual capacity of the patient using an inert gas wash in/wash out technique. To this end, the ventilator operates to alter the inert gas content of breathing gases provided to the patient. The amount of inert gas expired by the patient is obtained and used to determine functional residual capacity on a breath-by-breath basis. A graph of the functional residual capacities for a given number of breaths is produced. Thereafter, the inert gas levels in the breathing gases are returned to the original levels and further functional residual capacity determinations and a graph of same provided. The functional residual capacity information may also be provided in tabular form. A log of functional residual capacity determinations and ventilator settings or patient treatments affecting same may also be provided.

Growing community of inventors

Madison, WI, United States of America

Gary Choncholas