A mask is disclosed that has a gas outlet which is quiet and provides for a diffused outlet flow of gases. The outlet is preferably a slot formed between a hollow body and cover over said hollow body. The mask also preferably extends and seals under a user's chin in use.

A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.

The present invention is directed to systems, devices and methods for trans-septally delivering carbon dioxide through a minimally invasive catheter to create a gaseous pocket or emphysema between the posterior wall of the left atrium and the esophagus during cardiac ablation of the left atrium. This pocket of gas expanded tissue serves to thermally insulate and separate the esophagus from the left atrium during ablation to prevent the formation of an atrial-esophageal fistula. The system comprises a control system to precisely deliver the gas to a desired location through a needle-based catheter assembly.

The present invention is directed to systems, devices and methods for trans-septally delivering carbon dioxide through a minimally invasive catheter to create a gaseous pocket or emphysema between the posterior wall of the left atrium and the esophagus during cardiac ablation of the left atrium. This pocket of gas expanded tissue serves to thermally insulate and separate the esophagus from the left atrium during ablation to prevent the formation of an atrial-esophageal fistula. The system comprises a control system to precisely deliver the gas to a desired location through a needle-based catheter assembly.

A system (1000) feeds substances to a patient (30) with a ventilation of the patient and with an oxygenation of the patient. The system (1000) has at least one ventilation system (1), a sedation by inhalation system (17) with a dispensing system (7), an oxygenation system (2), a breathing gas dispensing path (3), a purge gas dispensing path (4), a breathing gas connection system (5), a connection element (25) located adjacent to the patient, an oxygenation connection system (6) and a switching unit (8). The switching unit (8) is configured to distribute and to split a quantity of an inhalable substance dispensed into a gas mixture by means of the dispensing system (7) between the connection element (25) located adjacent to the patient and the oxygenation system (2). At least one control unit (9, 10, 11, 12) is configured to control the switching unit (8) and/or the system (1000).

A clear, soft and malleable plastic constructed face mask is provided that has an elastic strap that is used to secure the mask onto a patient's face. The mask comprises of a malleable aluminium strip on the top for easy molding of the mask around the patient's nose; a front opening covered with a paper filter; and two side openings covered with a paper filter. The mask provides supplemental oxygen through connection to a Y-shaped respiratory/ventilator circuit or standard oxygen tubing. The mask also allows the patient to breathe comfortably without a supplemental oxygen source. It has ribbed tubing for gas sampling. The mask allows a health care employee to visualize breathing on the clear plastic material. The mask provides filtration of aerosolized contaminants.

A carbon dioxide absorber (1) and a closed-circuit breathing apparatus (2) with the carbon dioxide absorber are based on the carbon dioxide absorber having an inlet (3) and an outlet (4) gas-tight connectable by a flow duct (5), in which a material (6) is arranged, which absorbs some carbon dioxide contained in the breathing gas stream sent through the material. The flow duct (5) is enclosed in some areas by a housing (7), in which a window element (8) is arranged. A display element (9) arranged movably in the flow duct (5) is visible through the window element from outside of the housing and/or through which window element the radiation reflected by the display element (9) exits to the outside. A distance between the window element (8) and the display element (9) varies as a function of the quantity of carbon dioxide-absorbing material arranged in the flow duct (5).

A carbon dioxide absorber (1) and a closed-circuit breathing apparatus (2) with the carbon dioxide absorber are based on the carbon dioxide absorber having an inlet (3) and an outlet (4) gas-tight connectable by a flow duct (5), in which a material (6) is arranged, which absorbs some carbon dioxide contained in the breathing gas stream sent through the material. The flow duct (5) is enclosed in some areas by a housing (7), in which a window element (8) is arranged. A display element (9) arranged movably in the flow duct (5) is visible through the window element from outside of the housing and/or through which window element the radiation reflected by the display element (9) exits to the outside. A distance between the window element (8) and the display element (9) varies as a function of the quantity of carbon dioxide-absorbing material arranged in the flow duct (5).

Disclosed are systems and processes related to cardiopulmonary resuscitation (CPR). One embodiment of the system comprises an inspiration chamber and an expiration chamber, which work cooperatively to provide gas (e.g., Oxygen (O.sub.2)) to a subject (e.g., human patient) during inspiration and extract and expel expired gas (e.g., Carbon Dioxide (CO.sub.2)) from the subject during expiration as a medical professional applies CPR to the subject. In other words, this disclosure provides systems and processes that allow for substantially synchronous chest compressions with positive pressure active inspirations and, also, substantially synchronous chest decompressions with negative pressure active expirations.