37 results about "Exhalation Filter" patented technology

An electronic cigarette particularly adaptable to vaporize liquid material also having exhale filter function is disclosed herein. The exhale function is useful to prevent second hand smoke in an enclosed environment, for example. An innovative diverter valve assembly comprises a unique duckbill valve configuration diverting air through a cooker chamber and into a mouthpiece in an inhale function and diverting exhaled air around the cooker chamber in the exhale function and through a filter assembly. A preferred embodiment further introduces a unique shape to the smoking instrument being elliptical in the cross-section and tapering to proximal and distal ends.

An electronic cigarette adaptable to vaporize liquid or flower material further with exhale filter capability is disclosed herein. In a preferred embodiment, threads are provided to disassemble a flower and / or liquid cartridge so that they can be exchanged for either / or. The flower cartridge has a separate heat transfer element not desired in the liquid cartridge. An innovative diverter valve assembly also has threads to connect to the cartridges and provides an exhale filter function so that exhaled vapor will not be offensive to non-smokers in an enclosed environment. The electronic smoking device herein further has a mini / micro USB charging port on a side thereof for its rechargeable batteries. Also in a preferred embodiment, a mouthpiece is made of relatively soft elastomer material and is flavored for comfort and enjoyment of a user.

A medical ventilator includes a pressure generator for increasing a pressure of gas that produces heat during the operation thereof. A heat sink spaced from the pressure generator is provided for absorbing heat from the pressure generator. A bacteria filter requiring heating in excess of an ambient temperature for the effective operation thereof is coupled in thermal communication with the heat sink. A heat pipe is coupled in thermal communication with the heat sink and the pressure generator for conveying at least part of heat produced by the pressure generator to the bacteria filter via the heat sink.

A medical ventilator includes a pressure generator for increasing a pressure of gas that produces heat during the operation thereof. A heat sink spaced from the pressure generator is provided for absorbing heat from the pressure generator. A bacteria filter requiring heating in excess of an ambient temperature for the effective operation thereof is coupled in thermal communication with the heat sink. A heat pipe is coupled in thermal communication with the heat sink and the pressure generator for conveying at least part of heat produced by the pressure generator to the bacteria filter via the heat sink.

The invention is directed to a method for determining the total amount of liquid medicament containing an active drug substance to be aerosolized and inhaled by a patient in order to deliver a pharmaceutically effective amount (“PEA”) of said drug to the respiratory tract of said patient comprising: A) aerosolizing a measured amount of said medicament liquid containing a known amount of drug (“Aerosolized Dose”) using an aerosolization means connected to said patient via an inhalation tube and an exhalation tube; wherein said exhalation tube contains a filter means and wherein said Aerosolized Dose is less than said PEA of said drug; B) administering said aerosol to the respiratory tract of said patient via said inhalation tube; C) allowing the patient to exhale through said exhalation tube containing said filter wherein any exhaled drug is trapped on said filter; D) measuring the reflectance of the color on the filter media contained in said exhalation filter using a reflectance spectrophotometer to determine the amount of drug on said exhalation filter (“Exhaled Dose”); E) determining the actual dose delivered to said patient (“Delivered Dose”) as follows: Aerosolized Dose minus Trapped Dose minus Exhaled Dose=Delivered Dose, where the Trapped Dose is the amount of drug trapped in the inhalation tube; and F) calculating the total amount of liquid medicament to be aerosolized (“Total Aerosolized Dose”) by multiplying the PEA by the result of dividing the Delivered Dose by the Aerosolized Dose; wherein a solution or suspension of the drug is colored when viewed by the human eye or wherein the drug reacts with a reagent on the filter media of said filter means to produce a color.

A biohazard mask for civilian use comprises bidirectional HEPA filtering to protect both personal and public health during an outbreak. Several measures are taken to maximize comfort and wearability, such as comfort-fit through a gel seal, anti-fogging protection through separation of the eye volume from the mouth-nose volume and through eye moisture release valves, heat-dissipation through a net suspension, and overpressure release valves to maintain the face seal during coughing or sneezing. Wicking exhalation filters promote moisture abatement around the mouth and nose. Attractive and stylish designs, combined with accommodation for telephone communication or audio entertainment, helps wearers keep the mask on during an outbreak.

An accessory e-cigarette filter assembly that is essentially a protective sleeve for both a vaporizer and an exhale filter is disclosed. The device also allows for removably pairing an exhale filter to a vaporizer. In the preferred embodiment, the sleeve provides for the filter and e-cigarette to be juxtaposed however a mouthpiece for the filter and a mouthpiece for the e-cigarette are at opposite ends.

A pipe comprises a combustion chamber with vents, the combustion chamber able to receive a cigarette; an inhalation path for drawing smoke from the combustion chamber through the bowl vents during inhalation; an exhalation filter; and an exhalation path for channeling exhaled smoke through the exhalation filter during exhalation.

Systems comprising a pressurized delivery device and a formulation of cyclosporine coupled to an exhalation filter or trap that is capable of preventing cyclosporine from escaping into the local environment are provided. An apparatus for use in the system comprises either an exhalation filter and a pressurized delivery device, wherein the exhalation filter is capable of providing high filter efficiency and maintaining low filter resistance after usage with the formulation, or a trap which provides a means for expired gas to be released into a solvent chamber containing a solvent with a high affinity for cyclosporine. These systems may be used to treat patients with pulmonary disorders, organ transplant patients such as lung transplant patients, and other immune-related disorders.

An accessory e-cigarette and filter assembly that is essentially a holder for both a vaporizer / e-cigarette and an exhale filter is disclosed. The device also allows for removably pairing an exhale filter to a vaporizer and provides impact protection thereto. In the preferred embodiment, a sleeve with parallel channels provides for the filter and e-cigarette to be juxtaposed however a mouthpiece for the filter and a mouthpiece for the e-cigarette are at opposite ends.

An accessory e-cigarette filter assembly that is essentially a protective sleeve for both a vaporizer / electronic cigarette and an exhale filter is disclosed. The apparatus is further for the purpose of removably pairing an exhale filter to a vaporizer. Also notably, the invention is a removable mouthpiece having dual valve technology that couples to both the vaporizer and the exhale filter via the protective sleeve. The dual valve technology configured for inhale and exhale could also be adapted to other personal air filter applications as desired.

A portable air filtration and disinfection device for a respirator system includes a casing, an inhalation filter assembly, and an exhalation filter assembly. The inhalation filter assembly includes an intake duct for receiving breathing air, an inhalation gas filter for filtering the breathing air, and an inhalation duct to provide the filtered breathing air. The exhalation filter assembly includes an exhalation duct for receiving exhaled air, an exhalation gas filter and an exhalation liquid filter for filtering and disinfecting the exhaled air, and an outlet duct for releasing the filtered and disinfected exhaled air.

The invention discloses an inhalation and exhalation filter type mask. A respiration valve body is arranged at the inner side of a mask body. The respiration valve body is provided with air inlets, air outlets and respiration openings corresponding to nares of a user. The mask body sequentially comprises a plurality of composite filter layers and a moisture absorption layer from exterior to interior. The edge of the mask body is sealed and fixed. A welding mark A is arranged in the middle of the mask body. The air outlets communicate with the mask body through air tubes A. The connections of the air tubes A and the mask body are located at the same side of the welding mark A. The connecting ends of the mask body and the air tubes A are located at the outer side of the moisture absorption layers. According to the structure of the inhalation and exhalation filter type mask, a user who wears and uses the mask can easily and conveniently exhale air out of the mask, and the respiration comfort of the user wearing the mask is improved, so that the phenomenon that exhaled gas remains and is gathered between contact surfaces of the face of the user and the mask, the user feels discomfortable, and eczema is caused is avoided.

The invention discloses an anti-cross infection atomization inhalation device for pediatrics, which comprises an atomizer working main body, wherein the outer surface of the upper end of the atomizerworking main body is provided with an isolation and separation protective edge; the outer surface of the upper end of the isolation and separation protective edge is provided with a medicine loading bin; the outer surface of the front end of the medicine loading bin is provided with a double-mode connecting pipe; the outer surface of the front end of the double-mode connecting pipe is provided with a respirator; the outer surface of one side of the respirator is provided with an exhalation filtering and exhaust device; the outer surface of the upper end of the medicine loading bin is providedwith a convenient heating device. According to the anti-cross infection atomization inhalation device for pediatrics, air exhaled by a child is absorbed, sterilized and exhausted through the exhalation filtering and exhaust device, so that cross infection is avoided; liquid medicine can be appropriately heated through the convenient heating device, so that the comfort level of inhalation of the atomized liquid medicine by the child is increased; the liquid medicine feeding posture can be selected according to actual conditions through the double-mode connecting pipe, so that people can use theliquid medicine conveniently.

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 form of an aerosol, and wherein the aerosol is generated by nebulization of the pharmaceutical composition using a nebulizer (100), the nebulizer comprising: 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 vibratable membrane (110) having a plurality of apertures, the apertures being adapted to produce an aerosol comprising droplets having a mass median aerodynamic diameter (MMAD) of up to about 4.0 gm as measured with a 0.9% (w / v) aqueous solution of sodium chloride; b) a chamber (105) for temporarily accommodating the aerosol generated by the aerosol generator (101), the chamber having an inner lumen with a volume in the range of from about 50 to about 150 ml; and c) a mouthpiece (40) for delivering the aerosol supplied by the nebulizer (100) to the subject, the mouthpiece having an exhalation filter (30).

A pipe comprises a combustion chamber with vents, the combustion chamber able to receive a cigarette; an inhalation path for drawing smoke from the combustion chamber through the bowl vents during inhalation; an exhalation filter; and an exhalation path for channeling exhaled smoke through the exhalation filter during exhalation.

Low resistance aerosol exhalation filters, and methods of their use are provided. The exhalation filters provided herein are used in conjunction with a nebulizer in the treatment of a pulmonary infection in a patient in need thereof. In one method, an antiinfective formulation is administered to a patient in need of treatment of a pulmonary infection, with a nebulizer comprising a low resistance aerosol exhalation filter of the invention. The pulmonary infection, in one embodiment, is a Pseudomonas or mycobacterial (e.g., NTM) infection.

An apparatus and method are provided for administering an inhaled drug to a person while simultaneously administering oxygen from a medical oxygen mask. The inhaled drug is from a pressurized metered dose inhaler (MDI), employing an extender tube about 3-10 cm long that fits into or over the mouthpiece of the inhaler. The MDI with extender tube is inserted into the mask and positioned so that the plume of drug travels through the extender when the MDI is actuated and is directed to just inside the mouth of the person. In an embodiment, an exhalation filter is provided to prevent contamination from infectious agents in the exhaled air from the person.

The invention relates to a rebreathing apparatus having inhaled oxygen mixing and exhaled carbon dioxide removal functions by electronic control. The rebreathing apparatus includes a mask formed in response to a face of a user and having one side to which an inhalation hose is connected and the other side to which an exhalation hose is connected; an exhaled breath storing container storing exhaled breath discharged from the exhalation hose; a filter unit removing carbon dioxide discharged from the exhaled breath storing container; an inhaled breath storing container storing the air having passed through the filter unit and being connected to the inhalation hose of the mask; an oxygen storing container configured to supply oxygen through an oxygen supplying hose to the inhalation storing container; a decompressor installed at an inlet of the oxygen storing container, the decompressor being configured to block the oxygen of high pressure from being discharged. The rebreathing apparatus may be electronically controlled by using multiple sensors to provide an integral breathing mechanism by removing exhaled carbon dioxide, mixing oxygen using an oxygen mixing module, and supplying the mixedoxygen to the breath.

An exhalate filter medium for a biohazard mask is made of polytetrafluoroethylene (PTFE) and surrounding layers of a wicking material and an antimicrobial material. The exhalate filter may be contained in a removable and replaceable cartridge snap-fit into the surface of a biohazard mask.

Low resistance aerosol exhalation filters, and methods of their use are provided. The exhalation filters provided herein are used in conjunction with a nebulizer in the treatment of a pulmonary infection in a patient in need thereof. In one method, an antiinfective formulation is administered to a patient in need of treatment of a pulmonary infection, with a nebulizer comprising a low resistance aerosol exhalation filter of the invention. The pulmonary infection, in one embodiment, is a Pseudomonas or mycobacterial (e.g., NTM) infection.

An apparatus and method are provided for administering an inhaled drug to a person while simultaneously administering oxygen from a medical oxygen mask. The inhaled drug is from a pressurized metered dose inhaler (MDI), employing an extender tube about 3-10 cm long that fits into or over the mouthpiece of the inhaler. The MDI with extender tube is inserted into the mask and positioned so that the plume of drug travels through the extender when the MDI is actuated and is directed to just inside the mouth of the person. In an embodiment, an exhalation filter is provided to prevent contamination from infectious agents in the exhaled air from the person.

A powered air purifying respirator includes an inlet air filter; a flow generator configured to cause air from an ambient environment to flow through the inlet air filter and elevate pressure of the air to above ambient conditions; a mask in fluid communication with the flow generator and configured to fit tightly against a user's face or neck for delivery of the air to the user at the elevated pressure; and a one-way outlet valve configured to allow air exhaled by the user to be vented to the ambient environment. An outlet filter may be included to filter the air flowing through the one-way valve, and the outlet filter may be retrofit. The outlet filter may be preferred when filtration of both inlet and outlet air is desirable.

A positive pressure ventilation apparatus is provided for non-invasive ventilation of a patient requiring ventilatory care which comprises a positive pressure mask, a positive-pressure source coupled to the positive pressure mask, and an exhalation filter positioned on a gas flow path interconnecting the positive-pressure source and positive pressure mask. The positive pressure mask comprises a mask body configured to cover a patient's mouth and nostrils, the mask body having a patient-contact perimeter, the mask body comprising a flexible concertinaed portion at or adjacent to the patient-contact perimeter to accommodate movement of the patient's face during use, a gas inlet to the mask body configured to be connected to the positive-pressure source, and an adhesive seal positioned at the patient-contact perimeter to secure the mask body to the patient's face and prevent gas leakage during flexion of the concertinaed portion.

An accessory e-cigarette filter assembly that is essentially a protective sleeve for both a vaporizer / electronic cigarette and an exhale filter is disclosed. The apparatus is further for the purpose of removably pairing an exhale filter to a vaporizer. Also notably, the invention is a removable mouthpiece having dual valve technology that couples to both the vaporizer and the exhale filter via the protective sleeve. The dual valve technology configured for inhale and exhale could also be adapted to other personal air filter applications as desired.

An electric air purifying respirator includes an inlet air filter; a flow generator configured to cause air from an ambient environment to flow through the inlet air filter and elevate pressure of the air to above ambient conditions; a mask in fluid communication with the flow generator and configured to fit tightly against a user's face or neck for delivery of the air to the user at the elevated pressure; and a one-way outlet valve configured to allow air exhaled by the user to be vented to the ambient environment. An outlet filter may be included to filter the air flowing through the one-way valve, and the outlet filter may be retrofit. The outlet filter may be preferred when filtration of both inlet and outlet air is desirable.

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 orcondition in a subject, wherein the pharmaceutical composition is administered to the subject by inhalation in form of an aerosol, and wherein the aerosol is generated by nebulization of the pharmaceutical composition using a nebulizer (100), the nebulizer comprising: 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 vibratable membrane (110) having a plurality of apertures, the apertures being adapted to produce an aerosol comprising droplets having a mass median aerodynamic diameter (MMAD) of up to about 15 4.0 um as measured with a 0.9 % (w / v) aqueous solution of sodium chloride; b) a chamber (105) for temporarily accommodating the aerosol generated by the aerosolgenerator (101), the chamber having an inner lumen with a volume in the range of from about 50 to about 150 ml; and c) a mouthpiece (40) for delivering the aerosol supplied by the nebulizer (100) to the subject, the mouthpiece having an exhalation filter (30).

A positive pressure ventilation apparatus may include a positive pressure mask; a positive pressure source; and an exhalation filter. The positive pressure mask may include a mask body having a patient-contact perimeter and including a flexible concertinaed portion of uniform flexion continuously around the mask body. The flexible concertinaed portion may include a plurality of ridges. The positive pressure mask may further include a gas inlet to the mask body configured to be connected to the positive-pressure source; and an adhesive seal positioned at the patient-contact perimeter which may be positioned at the outermost portion of the patient contact perimeter. The adhesive seal may comprise one or more layers. Each layer may include one or more cover members, each of which may include at least one removable tab; and at least one perforation. Each layer may further include a dual-sided form carrier with adhesive material on one or both sides.