Methods and systems are provided for anesthetic agent leakage diagnostics. In one embodiment, a method for diagnosing leaks in an anesthetic vaporizer includes calculating a leakage rate based on measurements of an anesthetic agent level in a sump of the anesthetic vaporizer, the measurements received from a fluid level sensor at a first time and a second time, and outputting a maintenance alert responsive to the leakage rate exceeding a threshold.

Provided is a filtering facepiece respirator. The respirator includes a mask body having an anterior side portion, a posterior side portion, a middle portion, a first side portion, a second side portion, a top side portion, a bottom side portion and outer edge portions. The respirator further includes a primary port positioned at the anterior middle portion of the mask body and a detachable primary port adapter which is positioned over and engages the primary port. The respirator may further include an oxygen port and oxygen port adapter and a luer port and luer port adapter.

A system and method for reducing the risk of fire in an oxygen delivery system. The system may include an oxygen delivery device with a controller in communication with a flow control valve to control a flow of oxygen through a tubing from an oxygen source to a patient interface. The controller may be programmed to close the flow control valve for a predetermined time period at a predetermined time interval to cause a periodic oxygen pause, the periodic oxygen pause to remove oxygen that may serve as an oxidizer when a fire is present inside at least one of the patient interface and the tubing.

Disclosed is a barrier tent comprising a canopy, at least a portion of the canopy being composed of flexible sheet material; a frame for supporting the canopy; the canopy and frame being configured such that an internal surface of the canopy defines at least a portion of a patient segregation cavity to enclose a patient's head and at least a portion of the patient's body within the patient segregation cavity; and a gas input extending through the canopy, the gas input being positioned at a location configured such that supply of a gas through the input limits movement of aerosolised particles generated by or adjacent the patient toward the internal surface of the canopy.

A medical drape which is positioned over the head and upper torso of a patient is disclosed which includes a head flap, a head portion, a torso portion, and two oppositely disposed arm portions. The head flap is of a sufficient length to extend about the backside of the patient=s head. The head portion includes oppositely disposed side wings which aid in covering the head of a patient. Each arm portion includes an access slot extending through the arm portion.

There is provided an apparatus for delivering a flow of gas having a controller, a housing defining a gasflow passage, a motor with an impeller to deliver gas through the gasflow passage, and a flexible printed circuit electrically connected to the motor for electrically connecting the motor to the controller. There is also provided an apparatus for delivering a flow of gas having a housing defining a gasflow passage. The gas flowing through the gasflow passage is a high concentration oxygen gas. The apparatus has a motor with windings and an impeller to deliver gas through the gasflow passage, and an elastomeric shield to pneumatically isolate the windings from the gasflow passage.

A breathing apparatus includes a source of compressed air and a lung demand valve that receives compressed air from the source. A pneumatic valve assembly is connected between the source and the lung demand valve. The pneumatic valve assembly is moveable between a first closed position that prevents a flow of compressed air to the lung demand valve and a second open position that provides a path for compressed air to flow to the lung demand valve. A mask receives the lung demand valve therein. The mask provides the compressed air to a user and having a first operational mode providing filtered ambient air to the user and a second operational mode providing compressed air to the user. A control device is coupled to the pneumatic valve assembly. The control device detects a condition in the air surrounding the apparatus and controlling the pneumatic valve assembly to move between the first closed and second open position and the mask to operate in a respective one of the first and second operational modes.

A system includes a nasal cannula having a flexible tube configured to transmit oxygen gas to a user, an optical fiber coupled to the nasal cannula and configured to transmit light having a frequency spectrum range at least including that of light resulting from combustion of the nasal cannula while transmitting the oxygen gas to the user, a detector operatively coupled to the optical fiber and configured to detect the light transmitted through the optical fiber, and a valve. The valve is configured to be actuated to interrupt the transmission of the oxygen gas to the user through the nasal cannula in response to a signal from the detector.

Aspects of the disclosure describe a design that isolates concentrated oxygen from electrical and/or flammable components of a ventilator. In an example, ventilator components containing or otherwise interacting with concentrated oxygen are isolated from the electrical equipment and/or drained to an exterior of the housing of the ventilator, in case of a leak. For example, an isolating structure encases the concentrated oxygen-carrying components to prevent concentrated oxygen from inadvertently leaking into the inside of the housing of the ventilator. The isolating structure may be a sleeve. An isolation gas inside the isolating structure may be fluidly coupled with ambient air outside the housing of the ventilator to allow the escape of isolation gas outside of the ventilator housing.

A disinfection system is provided. The disinfection system may utilize ultraviolet light and/or ozone for disinfection of infected tissue. For example the system may involve an endoscopic ultraviolet light to disinfect lung tissue. In another aspect, the system may involve a ventilator which provides ozone in small doses to disinfect the tissue. Combinations and variations are further disclosed.