Apparatus (20) for fitting to the machine end of a tracheostomy tube (10) includes both an HME and a speaking valve (30). The HME includes two exchange elements (28, 29) at opposite ends of a housing (23) extending laterally of a coupling (25) for fitting on the tube. The speaking valve has a cylindrical sleeve (31) extending across the housing midway along its length and in line with the tube. The sleeve is rotatable about its axis and has two openings (36) on opposite sides that can be aligned with the exchange elements of the HME to allow gas to flow from the tube through the exchange elements, bypassing the speaking valve. When the patient wishes to speak, he twists and rotates the speaking valve to block flow to the exchange elements and instead to allow air to be inhaled via the valve.

The self-inflating bag control system is characterized in that it comprises a bag controlling valve which is connected to at least two gas pumps and at least one gas parameter sensor via the gas distribution tubes. It comprises at least one gas pressing device connected to the valve via a gas parameter sensor via gas flow tubes. A control unit with a control panel is connected to the system through a gas sensor, which includes a sub-unit for setting the parameters of the gas flowing into the self-expanding bag, a measuring and analyzing the parameters of the gas flowing in the system by measuring the pressure and volume of the gas from the as parameters sensor, and a warn-alarm sub-unit, which generates a warning and/or alarm signal on the basis of the gas parameters read from the measurement and analysis subunit.

Present invention is related to a ventilator adapter and auxiliary chamber thereof. The ventilator adapter of the present invention comprises a T-shaped flow guiding adapter and an auxiliary chamber detachably connected thereto. The T-shaped flow guiding adapter contains a guiding valve that can retractably close or open its opening. The auxiliary chamber is a cylindrical hollow tubing with open ends at both sides, and a chamber partition extended into the interior of the auxiliary chamber, separating the chamber at least partially into two chambers. The present invention is able to be adapted with the conventional ventilator pipeline by using the T-shaped flow guiding adapter for connecting any suitable ventilatory medicine with the auxiliary cavity. When the ventilatory medicine is administrated, the present invention is able to guide the gas flow within the ventilator pipeline reaching into the space of the auxiliary cavity and carrying the ventilatory medicine toward the patient successfully with high amount of medicine doses for better treatment result.

A system and method for airflow control of pressurized air delivery, and more specifically, but not exclusively, to a robust valve assembly for use in a positive airway pressure treatment (PAPT) system and method to improve speech during treatment.

Systems and methods are provided for detecting and sequestering waste anesthetic gases released by an anesthetic vaporizer. In one embodiment, a method for an anesthetic vaporizer installed in an anesthesia machine includes detecting an emission of waste anesthetic gases (WAGs) from the anesthetic vaporizer, and responsive to detecting the emission of WAGs, performing at least one of scavenging the WAGs and outputting an alert.

An oxygen concentrator includes one or more adsorbent sieve beds operable to remove nitrogen from air to produce concentrated oxygen gas at respective outlets thereof, a product tank fluidly coupled to the respective outlets of the sieve bed(s), a compressor operable to pressurize ambient air, one or more sieve bed flow paths from the compressor to respective inlets of the sieve bed(s), a bypass flow path from the compressor to the product tank that bypasses the sieve bed(s), and a valve unit operable to selectively allow flow of pressurized ambient air from the compressor along the one or more sieve bed flow paths and along the bypass flow path in response to a control signal. The valve unit may be controlled in response to a command issued by a ventilator based on a calculated or estimated total flow of gas and entrained air or % FiO.sub.2 of a patient.

An endotracheal device for mechanical ventilation of a patient includes a ventilation tube and a barrier. The ventilation tube includes a distal part, with a distal end, intended to be inserted into an airway of a patient, and a proximal part, with a proximal end, intended to be connected to a ventilation machine. The barrier is made of solid viscoelastic material, covers the ventilation tube in the distal area, and is configured to occupy, when inserted, the subglottic region, as well as the glottic region and also the supraglottic region of the larynx of the patient, for which reason the barrier has a variable cross section along the length thereof. The device provides greater safety and a lower incidence of complications in mechanical ventilation of patients.

A device and to a process supply a patient-side coupling unit (9) with a gas mixture. The patient-side coupling unit is connectable to a patient (Pt). A first duct (K.1) guides a first gas component (air) from a first source (2) to a mixing point (8). A second source (20) provides a second gas component, which is guided to a front pressure inlet (V.3) of a pressure reducer (1). The pressure reducer provides the second gas component (O2) at a back pressure outlet (V.2). A time course of pressure at the back pressure outlet follows a time course of pressure at a reference point (11, 28.1) in the first duct. A second duct (K.2) guides the second gas component from the back pressure outlet to the mixing point. An inhalation duct (K.30) guides the gas mixture from the mixing point to the patient-side coupling unit.

An oxygen concentrator comprises a product tank that is fluidly coupled to at least one sieve bed, and a product gas accumulator tank that is fluidly coupled to the product tank via a first conduit and to an outlet port via a second conduit, wherein the first conduit and the second conduit are disposed to allow at least a portion of product gas to flow from the product tank to the outlet port through the accumulator tank.

A device including a first flow channel, a second flow channel and a body part including an inner volume. A first space of the inner volume is adapted to be filled with liquid and a second space of the inner volume is arranged to receive steam. The device further includes means for conveying a gas flow from the steam space of the inner volume via the first flow channel to the outside of the device during inhalation and means for conveying the exhaled gas flow from the outside of the device via the second flow channel to the first space of the inner volume. The device further includes means for measuring a flow and a temperature of an airflow, and means for adjusting the flow of the airflow mechanically and/or automatically. The present disclosure further relates to a method and a system.