4 results about "Exhalation Filter" patented technology

The present disclosure relates to a pharmaceutical composition comprising an inhalable immunosuppressive macrocyclic active ingredient for use in the prevention or treatment of a pulmonary disease or condition in a subject, wherein the pharmaceutical composition is administered to the subject by inhalation in the form of an aerosol, and wherein the aerosol is produced by nebulizing the pharmaceutical composition using a nebulizer (100), which nebulizer comprises: a) an aerosol generator (101) comprising: - a fluid reservoir (103) for holding the pharmaceutical composition or an interface configured to connect a fluid reservoir, and a vibrating membrane (110) with a plurality of apertures, which apertures are adapted to produce an aerosol comprising droplets having a mass median aerodynamic diameter (MMAD) of up to about 4.0 gm as measured with aqueous 0,9% (w / v) sodium chloride solution; b) a chamber (105) for temporarily receiving the aerosol produced by the aerosol generator (101), wherein the chamber has an internal lumen with a volume in the range of about 50 to about 150 ml; and c) a mouthpiece (40) for delivering the aerosol provided by the nebulizer (100) to the subject, wherein the mouthpiece has an exhalation filter (30).,

This application relates to an electrically powered air-purifying respirator and its exhalation filtration structure, comprising: a soft rubber mask, a core mechanism, a filter element, and an adjustment strap. The soft rubber mask has a mask latch on the front, which axially engages with a mask connecting latch on the rear side of the core mechanism's fan compartment. The filter connecting latch on the front side of the core mechanism's fan compartment axially engages with a filter latch on the rear side of the filter element. These three components can be quickly assembled and disassembled without precise alignment. An electric fan inside the fan compartment operates, causing outside air to be filtered by the filter element into clean air, which then enters the soft rubber mask for the wearer to breathe. Each side wall of the soft rubber mask has an air outlet, covered by a diaphragm. During exhalation, the diaphragm opens, and exhaled air enters the air outlet filter through the enlarged outlet for purification before being discharged, preventing secondary pollution. The adjustment strap can be quickly tightened and prevents loosening. This application offers convenient assembly and disassembly, a secure fit, and highly efficient exhalation filtration, making it suitable for medical and epidemic prevention, industrial protection, and other occasions requiring clean air.

This invention relates to a device (1) for relieving pain and / or delivering sedation, such as through the administration of a sedative, analgesic or anaesthetic substance in a breathable form The device (1) can be configured to deliver a predetermined volume the substance in a single delivery event, the predetermined volume having an upper limit calculated based on a parameters of a single inhalation event. The predetermined volume may be determined and / or delivered based on a monitored breathing characteristic of a user. One or more exhalation filters (50), providing a total filter capacity matching a predetermined volume of substance in a reservoir (322), may be provided.

A breath-actuated jet nebulizer is provided, having a body enclosing a gas jet that creates a Venturi effect. The Venturi requires a baffle in close proximity to the gas jet. The baffle is movable in response to the inhalation of the patient, such that the baffle has a default (resting) position distal to the gas jet such that no Venturi effect is created, and no nebulization occurs. During the inhalation phase of a breathing cycle, a diaphragm flexes and pushes the baffle into close proximity with the Venturi gas jet, such that a Venturi effect is created that causes a low pressure zone in proximity to one or more liquid orifices that draw a drug solution into the Venturi, where the solution is nebulized. Also disclosed is an exhalation filter to prevent infectious particles from the patient from escaping and endangering nearby caregivers.