The control-monitor, used in combination with a percussive ventilation breathing head and internal reciprocating injector shuttle, includes in a casing a generator, sensory pulse amplitude, frequency and MAP modules and a gas amplitude and pulsatile frequency control knobs. First and second AMP control indicia include a bent conical AMP indicia (a wide span indicating greater amplitude, a narrow span indicating lesser amplitude) and a single waveform with an adjacent double-headed arrow vertical line. First and second F control indicia include a bent conical F indicia (a wide span indicating greater F and a narrow span indicating lesser F) and multiple waveforms with an adjacent double-headed arrow horizontal line.

A system and method for relief of negative lung pressure during acute laryngospasm or upper airway obstruction, providing a non-toxic gas cartridge capable of supplying between 0.5-5 liters of gas during a procedure, a valve adapted to commence and stop gas release, and a trans-cricothyroid cartilage inflation needle for acutely relieving the negative pressure in the chest. The needle may also be used to insert a guidewire to assist in endotracheal tube insertion.

A method of providing high frequency ventilation to a patient, comprises delivering a flow of breathing gas to the patient, the flow of breathing gas having a first positive pressure level and a second positive pressure level, the first and second positive pressure levels alternating with one another in a plurality of cycles in the flow of breathing gas to have a frequency and an amplitude, the flow of breathing gas to the patient generating a mean airway pressure; determining whether the patient is breathing spontaneously or is trying to breath spontaneously; and, in response to the determination that the patient is breathing spontaneously or trying to breath spontaneously or according to the user settings for HFV and user intervention for non-spontaneous breathing patient, adjusting the mean airway pressure, modulating the frequency and duty cycle of the flow of breathing gas, or modulating the level of flow and pressure amplitude of the breathing gas, or two or more thereof.

A breathing apparatus provides high frequency oscillatory ventilation [HFO] to a patient by supplying breathing gas to the patient according to an oscillating pressure profile oscillating between a positive pressure and a negative pressure. The breathing apparatus has a patient circuit including an inspiratory line for conveying breathing gas to the patient, and an expiratory line for conveying gas away from the patient, and an inspiration valve for regulating a flow of pressurised breathing gas into the inspiration line, and a control computer that controls the inspiration valve. The control computer operates to cause the oscillating pressure profile by controlling the inspiration valve to oscillate between a top flow position in which the flow of breathing gas through the inspiration valve assumes a top flow value, and a minimum flow position in which the flow through the inspiration valve assumes a minimum flow value.

A gas flow reversing element is disclosed that includes a main piece comprising an inflow region, a nozzle region and a mixing region, and further includes a branching piece. The inflow region connects a pressure connector to a closable outlet opening in the mixing region, the branching piece connecting the nozzle region to a line connector. With the outlet opening opened, gas flow flowing along a first flow path from the pressure connector through the nozzle to the outlet opening, generates a gas flow in the branching piece flowing along a second flow path from the line connector to the outlet opening. The reversing element further includes a bypass, closable by at least one closing element, connecting the pressure connector and the line connector so that a gas flow can flow along a third flow path via the inflow region, and bypass the nozzle via the bypass.

A system and method for providing a therapy to a subject may include a lumen configured to be coupled to a portion of a respiration passage of the subject to receive air respired by the subject. A sensor is configured to monitor the lumen and generate a signal based on the air respired by the subject. A pressure pulse delivery system is configured to deliver a pressure pulse along the lumen to the subject and a reservoir of therapeutic agent is coupled to the lumen. A processor is configured to receive the signal from the sensor, determine, from at least the signal, an exhalation period of the subject, and based on the exhalation period, cause the pressure pulse delivery system to deliver a pressure pulse to the subject. Following the pressure pulse, the processor can cause the therapeutic agent to be delivered from the reservoir.

An exemplary example of a medical device can include a retention structure for at least partially encircling a patient's body, the retention structure including a central member and a support portion configured to be placed underneath a patient, a piston extending from the central member, a driver coupled to the piston configured to retract and extend the piston, a patient contact member attached to the piston, the patient contact member configured to adhere to the patient's body, and a controller. The controller can be configured to cause the driver during a session to perform at least two cycles of negative pressure ventilation, each of the at least two cycles of negative pressure ventilation including positioning the piston at a reference position, retracting the piston from the reference position to an expansion position to expand a chest of a patient to generate negative pressure ventilation, and returning the piston from the expansion position to the reference position.

A ventilator includes a bidirectional breath detection airline and a flow outlet airline. The flow outlet airline includes an airline outlet. The ventilator further includes a breath detection airline including airline inlet. The airline inlet is separated from the airline outlet of the flow outline airline. The breath detection airline is configured to receive breathing gas from the user during exhalation by the user via the airline inlet. The ventilator further includes a pressure sensor in direct fluid communication with the breath detection airline. The pressure sensor is configured to measure breathing pressure from the user and generate sensor data indicative of breathing by the user. The ventilator further includes a controller in electronic communication with the pressure sensor. The controller is programmed to detect the breathing by the user based on the sensor data received from the pressure sensor.

Method and apparatus for providing percussive ventilation therapy to a patient airway preferably includes at least one driver unit configured to provide pressurized, non-pulsate gas. At least one patient interface device preferably has structure configured to (i) receive the pressurized, non-pulsate gas from the at least one driver unit and transform it into a pulsed and pressurized gas, and (ii) supply at least one sub tidal volume of pulsed and pressurized gas to a patient through a patient connection orifice. At least one flexible tube is preferably configured to provide pressurized, non-pulsate gas from the at least one driver unit to the at least one patient interface device. Preferably, at least one portion of the patient interface device is disposable, and another portion may be reusable. Preferably, the invention uses Adaptive Dynamic Subtidal Ventilation technology.

An infant positive airway pressure (PAP) or continuous positive airway pressure (CPAP) device and related patient interface and system, which can provide a flow of breathing gas to the patient interface. The device can be incorporated into the patient interface and includes at least one interior passage in the shape of a nozzle having a throat, a first portion upstream of the throat and a second portion downstream of the throat relative to the flow of breathing gas. The passage has a vent opening within the second portion and the interior passage defines a continuously curved surface extending between the throat and the vent opening. The second portion of the nozzle preferably is divergent and the first portion can be convergent or non-convergent (e.g., constant cross-section).