Abstract:
The invention relates to a nebuliser comprising a nozzle 3 arranged in a nebulising space and an air inlet flue 5 projecting into the nebulising space. The nebulising space is subdivided by a nebulising space divider into two parts, so that proceeding from the nozzle an aerosol flow occurs from the one part into the other. According to the invention, additional impact faces 7 and 8 are provided in the direct vicinity of the nozzle, which have the effect that only the smallest liquid droplets reach into the upper region of the nebulising space and are available to the patient for therapy.
Abstract:
A nebulizer device for use in administering liquid medication and fluids to the nasal passages utilizing the venturi and siphon effects to produce a mist in two air streams from one external air source. The nebulizer device comprises two major sections, a cap section and a reservoir section, with the cap section having an integrally molded pair of siphon tubes which fit over opposing pairs of air tubes attached to the reservoir section. Pressurized air introduced into the reservoir section travels through the air tubes and exits small diameter orifices which are position relative to similar small diameter orifices of the siphon tubes. This interface creates a venturi effect whereby liquid medication is siphoned from the bottom of the reservoir section, through the space provided between the inside diameter of the siphon tubes and the outside diameter of the air tubes, and exits as mist or liquid droplets through the small orifices of the siphon tubes. These two mist streams are directed to the two nostrils of the patient, while a nose shield attached to the cap section keeps the liquid medication out of the patient's eyes.
Abstract:
A medical pacifier is provided comprising a tubular body including a wall defining a hollow interior having an inlet connected to a nebulizer to receive air-entrained medication, and a closed end mounted to a stopper which carries a nipple. The wall is formed with a discharge port over which a deflector is mounted so that when the air-entrained medication exits from the hollow interior of the body through the discharge port it is directed by the deflector toward the nostrils of an infant sucking on the nipple.
Abstract:
An endotracheal catheter assembly and method for deep intrapulmonary, aerosol delivery of liquid drugs and other liquid therapeutic agents. The invention can deliver a bolus dose of liquid drugs into the lungs of a patient which is at least bioequivalent in terms of physiological effect to a similar drug dose delivered intravenously. The catheter assembly includes a first, gas-bearing tube and a second, liquid bearing tube, preferably concentrically nested within the gas-bearing tube. The tubes are inserted in an airway of the patient, preferably by threading the tubes into a lumen of an endotracheal tube, to position a terminal nozzle formed by distal tips of the tubes near a carina of the patient. At the nozzle, the lumen of the first tube has a comparative cross-sectional area relative to that of the second tube's lumen of between about 0.4:1.0 and 4.0:1.0. In operation, high velocity gas is forced from the first tube and impacts liquid expelled from the second tube at a high velocity gas/liquid interface, deforming the liquid into an aerosol and propelling it deep within the lungs of the patient.
Abstract:
A method of installing an anti-siphon flow restricter into a gas flow lumen of a nebulizer includes providing an anti-siphon flow restricter having a side wall conforming to a cross section of the gas flow lumen, first and second ends at opposite ends of the side wall and an elastomeric diaphragm closing the first end of the side wall. The anti-siphon flow restricter is axially inserted into the gas flow lumen with the diaphragm leading. The diaphragm is slit and allowed to self-bias closed.
Abstract:
The invention relates to an apparatus containing two syringes whose outlets terminate in a spray head with spray nozzle (atomizer). This apparatus is suitable for spraying, and where appropriate applying to a surface, two liquids as mixture. These liquids are preferably the components of an adhesive system, especially of a tissue adhesive.
Abstract:
A nebulizer (10) has a nebulizer top (12) defining an aerosol outlet (66) and a reservoir bottom (14) defining a liquid reservoir (21) and a threaded connection (38,68) between the reservoir bottom (14) and the nebulizer top (12). A nebulizing structure (24,46) within the nebulizer provides an aerosol to the aerosol outlet (66). A continuous flow adaptor (16) for the nebulizer has a side wall (90) with first and second open ends (94,100) defining a spacer interior. An orifice (116) in the side wall (90) of the adaptor (16) allows for fluid communication with the adaptor (16) interior from outside of the adaptor (16). A luer connector (118) is provided on the side wall (90) of the adaptor (16) for connecting the orifice (116) in fluid tight communication with a fluid supply. The adaptor (16) includes threads (92,98) proximate the first and second open ends (24,100) for cooperatively engaging the threaded portions (38,68) of the reservoir top (12) and reservoir bottom (14).
Abstract:
An endotracheal tube adapted for aerosol generation at the distal end thereof and which is a modification of existing endotracheal tubes. The improved tube incorporates first and second conduits along the length thereof in order to deliver a liquid to be aerosolized and a high velocity gas at the distal end of the endotracheal tube so as to create an aerosol within the lungs. The distal end of the gas conveying catheter is configured to direct the high velocity gas transported therethrough across the pathway of the liquid solution exiting the distal end of the first conduit to facilitate the creation of an aerosol for high efficiency delivery of the liquid solution.