The present technology relates to a patient interface for delivery of a flow of pressurised air to an entrance of a patient's airways, the patient interface comprising a mask with a seal-forming structure and one or more positioning and stabilising structures configured to provide a force to hold the mask in a therapeutically effective position on a patient's head in use. The mask and one or more of the positioning and stabilising structures includes a connection port to receive an end of the air circuit. The pressurised air is delivered from the air circuit to the seal-forming structure. In use, the patient connects the air circuit to the connection port of choice, depending on whether they prefer the patient interface to be arranged such that the end of the air circuit is superior to the patient's otobasion superior or inferior to the patient's otobasion superior.

A one-way respiratory valve includes a valve body. The valve body is hollow, opposite ends of the valve body are open, a partition plate is provided at one of the opposite ends, and an inhalation hole is formed at the other one of the opposite ends; an exhalation hole is formed on a side wall of the valve body, a second unidirectional guide member is provided at the exhalation hole of the valve body, and the second unidirectional guide member is unidirectionally accessible from an inside of the valve body to an outside of the valve body; and a middle part of the partition plate protrudes towards the inhalation hole to form a first protrusion, a first unidirectional guide member is provided on the first protrusion, and the first unidirectional guide member is unidirectionally accessible from the outside of the valve body to the inside of the valve body.

A valve assembly for adjustably regulating communication with medical tubing applied to a patient including a housing having a hollow interior and a primary connector interconnecting the medical tubing to the hollow interior. First and second ports are attached to and movable with a closure segment, concurrently and alternately, between an open orientation and a closed orientation. The concurrent and alternate disposition of the first and second ports comprising each disposed in the open orientation concurrent to the other disposed in the closed orientation. The open orientation of each of said first and second ports comprising disposition thereof in communicating relation with the medical tubing, via said hollow interior and said primary connector.

A ventilator, for the automated ventilation of a patient, includes a breathing gas delivery unit, at least one volume flow sensor for detecting a volume flow of the breathing gas, at least one breathing gas sensor for detecting a carbon dioxide concentration in the breathing gas, at least one pressure sensor for detecting a pressure of the breathing gas, as well as at least one computer. The computer is configured to actuate the breathing gas delivery unit as a function of the detected pressure and of a preset desired pressure value. The computer is further configured to perform an adaptation of the desired pressure value and an adaptation of a ventilation rate as a function of the detected volume flow and as a function of the detected carbon dioxide concentration.

Systems and methods are provided for an air flow sensor assembly for a medical gas flow device. In one embodiment, a system for an air flow sensor assembly for a medical gas flow device includes an air flow passage having a flexible reed positioned therein, the flexible reed fixedly coupled to the air flow passage via an attachment point and having an edge smaller than an inner passage wall of the air flow passage, a planar surface of the flexible reed extending into a flow path of air flow through the air flow passage, and a strain gauge coupled to the planar surface of the flexible reed.

A passive oxygen mask and vacuum regulation system disposed in fluid communication with a vacuum scavenging array includes a passive oxygen mask dimensioned to fit over a patient's nose and mouth and having a gas inlet port and an expired gas outlet port. A vacuum regulation assembly has a vacuum regulator which includes an expired gas discharge tube disposed in fluid communication between the passive oxygen mask and the vacuum regulation assembly, and a vacuum suction tube disposed in fluid communication between the vacuum regulation assembly and the vacuum scavenging array. The vacuum regulation assembly further comprising a vacuum attenuation port through a portion of a regulator housing, wherein the vacuum attenuation port is at least partially defined by an attenuation port diameter dimensioned to reduce a vacuum suction pressure in the expired gas discharge tube to a predetermined vacuum suction pressure.

A ventilator includes a bidirectional breath detection airline and a flow outlet airline. The flow outlet airline includes an airline outlet. The flow outlet airline is configured to be connected to an invasive ventilator circuit or a noninvasive ventilator circuit. The breath detection airline includes airline inlet. The airline inlet is separated from the airline outlet of the flow outlet airline. 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.

An adaptor for a respiratory assistance system delivers aerosols to a patient. The adaptor is lightweight with a small footprint to increase patient comfort. The adaptor has a nozzle and a sealing mechanism to maintain pressure therein regardless of whether the nozzle is inserted into the adaptor. The adaptor is configured to connect to medical tubing and a medicament delivery device.

A patient interface includes: a plenum chamber; a seal-forming structure; a positioning and stabilising structure; a plenum chamber insert configured to be positioned and retained within the plenum chamber; and a vent structure; wherein the plenum chamber insert has a plenum chamber insert port; wherein the plenum chamber insert has an exterior surface configured to be positioned adjacent to an interior surface of the plenum chamber; wherein when the plenum chamber insert is positioned and retained within the plenum chamber, a radial channel is formed by the interior surface of the plenum chamber and the exterior surface of the plenum chamber insert such that gas is able to pass between a patient-proximal side of the plenum chamber insert and a patient-distal side of the plenum chamber insert via the radial channel during use.

A device for enclosing a positive end valve (PEEP valve) and converting the PEEP valve to an inline valve for use in a differential multi-ventilation system is described. The device includes a housing configured to enclose the PEEP valve. The housing also includes a ventilator-side arm, a pass-through arm and a patient-side arm. The pass-through arm permits extension of the multi-ventilation system to add one or more patients to the system.