Patent application number | Description | Published |
20120235312 | HUMIDITY CONTROL IN APRESSURE SUPPORT SYSTEM - A pressure support system configured to provide pressure support therapy includes a humidifier that holds an enhanced amount of liquid while enhancing the power consumption of the pressure support system and enabling relatively rapid adjustments to humidity level. The humidifier includes a humidification chamber and a holding chamber, and a partition that divides the holding chamber from the humidification chamber such that liquid from the holding chamber replenishes liquid held in the humidification chamber. The partition, however, also provides a level of thermal isolation for the humidification chamber from the holding chamber. | 09-20-2012 |
20120298108 | AUTOMATICALLY CONTROLLED VENTILATION SYSTEM - A system for controlling and regulating breathing gas supplied to a patient that includes a pressure generator system that provides breathing gas to a patient and a patent circuit that delivers the breathing gas to the patient. The system includes an interface device coupled to the patient circuit to communicate the flow of gas to the patient' airway. A sensor detects a parameter indicative of a flow of breathing gas delivered to the patient. A controller coupled to the sensor and the pressure generator system measures at least one characteristic of respiratory airflow of a patient and calculates a target breath-amplitude-based parameter and a time-based parameter of at least a portion of the patient's respiratory cycle to be delivered to the patient based on the at least one characteristic of respiratory airflow. | 11-29-2012 |
20130125892 | SERVO VENTILATION USING PRESSURE DROP FROM BASELINE - A system and method for delivering a flow of breathing gas to an airway of a patient that includes a gas flow generator and a patient circuit that communicates the flow of gas to an airway of a patient. A sensor measures a characteristic associated with the flow of gas, such as flow rate. A controller determines a first characteristic based on the measured characteristic and a target of the flow of gas to be delivered to the patient. The controller controls the delivery of gas to the patient by 1) providing a baseline positive pressure support amount to the patient and 2) providing a modified pressure support amount by reducing the baseline amount by a given amount if the first characteristic is above the target. The baseline pressure includes a pressure provided during inspiration that is higher than a pressure provided during expiration. | 05-23-2013 |
20130239965 | HUMIDIFICATION SYSTEM WITH SIGNAL TRANSMISSION OPTIMIZATION - A pressure support device configured to provide pressure support therapy includes a humidifier that holds an enhanced amount of liquid without significantly mitigating sensitivity of respiratory event detection. The humidifier includes a chamber configured to hold liquid, and a partition that divides the chamber such that the volume of the chamber through which a flow of gas generated by the pressure support device flows is reduced. The reduction in the volume of the chamber through which the flow of gas flows preserves respiratory event detection sensitivity. | 09-19-2013 |
20140109909 | PRESSURE ADJUSTMENT IN A RESPIRATORY THERAPY DEVICE - Sleep apnea can be treated with pressure support therapy using a target pressure level. Detected respiratory events during consecutive multi-session testing period are compared to determine statistical metrics covering gradual changes in therapy efficiency. Adjustments to the target pressure level are based on changes in variability, and maybe made in between therapy sessions. | 04-24-2014 |
20140182589 | METHOD AND APPARATUS FOR TREATING CHEYNE-STOKES RESPIRATION - A system and method for delivering a flow of breathing gas to an airway of a patient. The system monitors a characteristic that varies based on variations of the flow of the breathing gas and determines a Target Flow for the gas to be delivered to the patient based on the monitored characteristic. The Target Flow is set to a level sufficient to treat Cheyne-Stokes respiration or a sleep disordered breathing event. The system also alters the Target Flow based on a determination that the patient is experiencing a sleep disordered breathing event. The system further determines a pressure relief component and controls the flow of gas delivered to the patient based on the Target Flow and the pressure relief component. | 07-03-2014 |
20150040903 | STARTING PRESSURE FOR RESPIRATORY THERAPY DEVICES - Systems and methods for providing respiratory therapy to a subject respond and/or adapt to the detection of an occurrence of a respiratory event. For example, the pressure level of a pressurized flow of breathable gas may be increased responsive to the occurrence of one or more apneas. Based on usage information spanning more than one therapy session, such as the tracked pressure levels, a starting pressure level for a pressurized flow of breathable gas for a subsequent therapy session is determined. The starting level at the beginning of the subsequent therapy session(s) may be the 90% pressure level as determined during the preceding period during which usage information has been gathered. | 02-12-2015 |