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 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.

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.

A system, method, and apparatus are disclosed for dressing a wound. The apparatus comprises a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, the absorbent layer overlying the transmission layer, a gas impermeable cover layer overlying the absorbent layer and comprising a first orifice, wherein the cover layer is moisture vapor permeable.

A filter cartridge for surgical gas delivery systems includes a filter housing configured to be seated in a filter cartridge interface of a surgical gas delivery system, with a plurality of flow paths defined through the filter housing including at least one evacuation/return flow path and at least one insufflation/sensing flow path. A humidity filter element is included in the evacuation/return flow path for removing humidity from an evacuation/return lumen of a tube set. The humidity filter element can include a sintered polymer material configured to provide tortuous flow paths therethrough to condense humidity out of a flow through the humidity filter element.

A filter cartridge for surgical gas delivery systems includes a filter housing configured to be seated in a filter cartridge interface of a surgical gas delivery system, with a plurality of flow paths defined through the filter housing including at least one evacuation/return flow path and at least one insufflation/sensing flow path. A humidity filter element is included in the evacuation/return flow path for removing humidity from an evacuation/return lumen of a tube set. The humidity filter element can include a sintered polymer material configured to provide tortuous flow paths therethrough to condense humidity out of a flow through the humidity filter element.

A respiration sensor fluid delivery device is provided. The device includes first and second nasal exhalation flow passages that extend through the device, wherein the first and second nasal exhalation flow passages can be aligned in parallel to one another with respect to a nasal respiratory flow direction. A housing of the respiration sensor fluid delivery device fluidly couples with one of a nasal cannula assembly and a respiratory mask assembly. The device provides for respiration monitoring of a subject via a sensor and fluid delivery, such as oxygen, to the subject. Methods of using a respiration sensor fluid delivery device and fluid delivery devices are also provided.

A respiration sensor fluid delivery device is provided. The device includes first and second nasal exhalation flow passages that extend through the device, wherein the first and second nasal exhalation flow passages can be aligned in parallel to one another with respect to a nasal respiratory flow direction. A housing of the respiration sensor fluid delivery device fluidly couples with one of a nasal cannula assembly and a respiratory mask assembly. The device provides for respiration monitoring of a subject via a sensor and fluid delivery, such as oxygen, to the subject. Methods of using a respiration sensor fluid delivery device and fluid delivery devices are also provided.