摘要:
Methods, apparatus and systems for precisely controlling a Valsalva maneuver and the timing thereof in conjunction with testing a patient for a cardiac shunt, and for ensuring that a patient performing a Valsalva maneuver creates a required pressure using their diaphragm. Embodiments of a Valsalva maneuver mouthpiece assembly are also disclosed for use with the invention methods, apparatus and systems. The mouthpiece assembly is adapted to selectively operate between a state that produces resistance to the exhalation pressure of a patient into the mouthpiece and a state wherein the pressure resistance is rapidly removed so as to cause an involuntary exhalation of the air in the patient's lungs at a time of desired Valsalva maneuver release.
摘要:
A nasal delivery device for delivering substance to a nasal airway of a subject, comprising: a mouthpiece (919) through which the subject in use exhales to cause closure of the oropharyngeal velum of the subject; a nosepiece (917) for fitting to a nostril of a subject, the nosepiece including a nozzle (949) through which substance is in use delivered to the nasal airway; a manually-actuatable substance supply unit (920) for delivering substance through the nozzle of the nosepiece, wherein the substance supply unit comprises a body part (955) which is movable from a first, rest position to a second, actuated position on manual actuation of the substance supply unit; and a body member (921) which receives the substance supply unit, wherein the body member includes an inlet (925) which is in fluid communication with the mouthpiece and an outlet (927) which is in fluid communication with the nosepiece; wherein the inlet of the body member is opened when the body part of the substance supply unit is moved to the actuated position, thereby providing for an air flow through the nosepiece simultaneously with manual actuation of the substance supply unit.
摘要:
A nasal delivery device for delivering substance to a nasal cavity of a subject, the delivery device comprising: a container-receiving unit (16) comprising a container chamber (23) for receiving a substance-containing container (C) which contains substance to be delivered to the nasal cavity of the subject, the container chamber (23) including an inlet (24) and an outlet (25); a nosepiece unit (17) including a nosepiece (47) for fitting to a nasal cavity of the subject and being in fluid communication with the outlet (25) of the container chamber (23); and a mouthpiece unit (19) including a mouthpiece (77) in fluid communication with the inlet (24) of the container chamber (23) and through which the subject in use exhales, such as to entrain substance from the container (C) and deliver the same through the nosepiece (47), and an air chamber (78) which fluidly connects the mouthpiece (77) to the inlet (24) of the container chamber (23), wherein the air chamber (78) incorporates a temperature regulator (79) for cooling an air flow as exhaled therethrough.
摘要:
A nasal delivery device for delivering substance to a nasal airway of a subject, comprising: a mouthpiece (919) through which the subject in use exhales to cause closure of the oropharyngeal velum of the subject; a nosepiece (917) for fitting to a nostril of a subject, the nosepiece including a nozzle (949) through which substance is in use delivered to the nasal airway; a manually-actuatable substance supply unit (920) for delivering substance through the nozzle of the nosepiece, wherein the substance supply unit comprises a body part (955) which is movable from a first, rest position to a second, actuated position on manual actuation of the substance supply unit; and a body member (921) which receives the substance supply unit, wherein the body member includes an inlet (925) which is in fluid communication with the mouthpiece and an outlet (927) which is in fluid communication with the nosepiece; wherein the inlet of the body member is opened when the body part of the substance supply unit is moved to the actuated position, thereby providing for an air flow through the nosepiece simultaneously with manual actuation of the substance supply unit.
摘要:
A nasal delivery device can include a nasal prong and an activation member. The nasal prong can comprises an opening at a top and bottom portion of the prong to allow for the passage of an aerosolized treatment agent through the nasal prong. The activation member can be positioned on the nasal delivery device at a location that is spaced apart from the subject's oral cavity when the nasal prong is received into the nostril of the subject. The activation member can be configured to detect a desired exhalation state of the subject and upon detection of the desired exhalation state, the activation member activates the delivery of the aerosolized treatment agent.
摘要:
A nasal delivery device for delivering substance to a nasal cavity of a subject, the delivery device comprising: a body member (101; 201); a carrier (109; 209) which is supported by the body member (101; 201) and carries a plurality of substance-containing containers (C; B); a nosepiece unit (119; 219) including a nosepiece (147; 247) for fitting to a nasal cavity of the subject; a mouthpiece unit (121; 221) including a mouthpiece (167; 249) through which the subject in use exhales; and an actuating mechanism which is operative, in each operation, to open a plurality of the substance-containing containers (C; B), and including a valve unit (169; 251) for fluidly connecting the mouthpiece (167; 249) to a respective one of the opened substance-containing containers (C; B) in successive exhalation cycles.
摘要:
A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising: a mouthpiece unit (209) which includes a mouthpiece (247) through which the subject in use exhales; a nosepiece unit (205) which includes a nosepiece (241) for fitting to a nostril of the subject; a substance-supply unit (211) which is configured to receive a container (C) containing particulate substance, the container (C) comprising a main body part (215) and first and second bearing support parts (217, 217) at the respective ends of the body part (215), and operable to provide a metered amount of substance in fluid communication with the mouthpiece and nosepiece units (209, 205), such that an exhalation air flow delivered through the substance-supply unit (211) entrains the substance; and a housing (203) which supports the mouthpiece unit (209), the nosepiece unit (205) and the substance-supply unit (211); wherein the substance-supply unit (211) includes a container-receiving member (251) which is movably disposed to the housing (203) between an open position for enabling loading of a container (C) thereinto and a closed position in which the container (C) is contained within the housing (203), and the container-receiving member (251) includes a cavity (253) which defines an air flow channel between the mouthpiece and nosepiece units (209, 205), such that an air flow is delivered therethrough on exhalation by the subject through the mouthpiece (247), and a support section for supporting the container (C) in the cavity (253) which includes first and second container supports (255, 255) for rotatably supporting the respective support parts (217, 217) of the container (C).
摘要:
A nasal delivery device for and method of delivering particulate substance to the nasal airway of a subject, the delivery device comprising : a body assembly (3) including a mouthpiece unit (9) which includes a mouthpiece through which the subject in use exhales, and a substance-supply unit which is fluidly connected to the mouthpiece unit and actuatable to provide particulate substance for delivery to the nasal airway of the subject; wherein the body assembly is configured to receive a replaceable nosepiece unit (5) which includes a nosepiece and contains a container containing particulate substance.
摘要:
A delivery device for and method of delivering substance, in particular a vaccine, to a mucosal surface within the oral cavity of a subject, the device comprising: a mouthpiece unit to be gripped in the mouth of a subject, wherein the mouthpiece unit is configured such that, on exhalation or attempted exhalation by the subject, a pressure is developed in the oral cavity which is such as to close the oropharyngeal velum of the subject; and an oral outlet unit including at least one outlet from which substance is in use delivered to a mucosal surface within the oral cavity of the subject.
摘要:
A nasal delivery device for delivering a substance to the nasal airway of a subject, comprising: a closure unit for causing closure of the oropharyngeal velum of the subject; and a delivery unit for delivering a gas flow and substance to one of the nostrils of the subject, wherein the delivery unit includes an outlet through which the gas flow and substance is in use delivered to the one nostril; characterized in that : the delivery unit is configured to deliver the gas flow at a driving pressure to flow around the posterior margin of the nasal septum and out of the other nostril of the subject; and the delivery unit comprises a nosepiece which includes the outlet and a sealing member for providing a fluid tight seal between the outlet and the one nostril.