Source: http://www.google.com/patents/US6085741?dq=6,049,612
Timestamp: 2014-03-09 20:52:05
Document Index: 426174997

Matched Legal Cases: ['art 2', 'art 1', 'art 1', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2']

Patent US6085741 - Device for atomisation of fluids - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe invention relates to a device for atomising fluids and having a bottom part (1) and a top part (2) disposed so as to be axially symmetrical with the bottom part, and comprising an intake air arrangement (3) and an outlet nozzle (4). The atomiser according to the invention also has an insert (5) for...http://www.google.com/patents/US6085741?utm_source=gb-gplus-sharePatent US6085741 - Device for atomisation of fluidsAdvanced Patent SearchPublication numberUS6085741 APublication typeGrantApplication numberUS 08/848,950Publication dateJul 11, 2000Filing dateApr 30, 1997Priority dateJun 6, 1995Fee statusLapsedAlso published asDE19520622A1, DE19520622C2, EP0747076A2, EP0747076A3Publication number08848950, 848950, US 6085741 A, US 6085741A, US-A-6085741, US6085741 A, US6085741AInventorsRudolf BeckerOriginal AssigneePari Gmbh Spezialisten Fur Effektive InhalationExport CitationBiBTeX, EndNote, RefManPatent Citations (14), Referenced by (17), Classifications (18), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetDevice for atomisation of fluidsUS 6085741 AAbstract The invention relates to a device for atomising fluids and having a bottom part (1) and a top part (2) disposed so as to be axially symmetrical with the bottom part, and comprising an intake air arrangement (3) and an outlet nozzle (4). The atomiser according to the invention also has an insert (5) for receiving a fluid (23) and a nozzle arrangement (6) disposed so as to be axially symmetrical with the intake air arrangement (3). The intake air arrangement (3) has a hollow cylindrical duct (7) with a conical widening (8) towards the incoming air end. As a result of being constructed according to the invention, the atormiser is particularly suitable for local inhalation anaesthesia, e g. in preparation for examination of the bronchi.
What is claimed is: 1. A device for atomizing fluids for inhalation, comprising:a top portion having a generally cylindrical body with an open top end, an open bottom end and a sidewall, with an atomized fluid outlet defined in the sidewall; a generally cylindrical air intake duct extending from the top end of the cylindrical body toward the bottom end of the cylindrical body, positioned substantially coaxially with the cylindrical body and having a smaller diameter than that of the cylindrical body so as to define an annular passage between an outer surface of the air intake duct and an inner surface of the cylindrical body for delivery of atomized fluid to the outlet, said air intake duct having a top end defining an air inlet opening and a bottom end defining an air outlet opening; an atomizing nozzle positioned substantially coaxially with the air intake duct near the air outlet opening, the atomizing nozzle being adapted for communication with a source of compressed gas; an insert for supplying fluid to be atomized to the nozzle, positioned adjacent the bottom end of the top portion; and a generally cylindrical bottom portion for maintaining the insert in position, positioned substantially coaxially with the top portion wherein the top portion and the air intake duct have a length and diameter such that atomized fluid particles having a size suitable for delivery to a vicinity of bronchia, throat and glottis of a patient are delivered to the atomized fluid outlet via the annular passage upon inhalation by a patient through the atomized fluid outlet. 2. A device according to claim 1, wherein the top end of the air intake duct has a diameter substantially equal to that of the cylindrical body and further comprises a reduced diameter lower section and a conical section connecting the top end and the lower section.
10. A method of delivering an active agent in the form of an atomized fluid to a vicinity of bronchi, throat and glotti of a patient, comprising:forming an atomized fluid containing an active agent to be delivered to a patient in a device for atomizing fluids for inhalation, said device comprising:a top portion having a generally cylindrical body with an open top end, an open bottom end and a sidewall, with an atomized fluid outlet defined in the sidewall; a generally cylindrical air intake duct extending from the top end of the cylindrical body toward the bottom end of the cylindrical body, positioned substantially coaxially with the cylindrical body and having a smaller diameter than that of the cylindrical body so as to define an annular passage between an outer surface of the air intake duct and an inner surface of the cylindrical body for delivery of atomized fluid to the outlet, said air intake duct having a top end defining an air inlet opening and a bottom end defining an air outlet opening; an atomizing nozzle positioned substantially coaxially with the air intake duct near the air outlet opening, the atomizing nozzle being adapted for communication with a source of compressed gas; an insert for supplying fluid to be atomized to the nozzle, positioned adjacent the bottom end of the top portion; and a generally cylindrical bottom portion for maintaining the insert in position, positioned substantially coaxially with the top portion wherein the top portion and the air intake duct have a length and diameter such that atomized fluid particles having a size suitable for delivery to a vicinity of bronchia, throat and glottis of a patient are delivered to the atomized fluid outlet via the annular passage upon inhalation by a patient through the atomized fluid outlet; and delivering the atomized fluid to the patient through the atomized fluid outlet by inhalation. 11. A method according to claim 10, wherein the atomized particles delivered through the atomized fluid outlet have a median mass-diameter distribution with a maximum of about 8.5 μm.
Next, the top part 2 of the atomiser can be secured to the bottom part 1. The connection can be by screwing, an outer thread 16 on the bottom part 1 engaging an inner thread 17 on the top part 2. The top part 2 comprises the intake air arrangement 3, which is releasably inserted into the top part 2. The inserted intake air arrangement 3, when in the assembled state, is positively connected to a portion of the widening 8, via an inner peripheral portion 18 of the top part 2. The outlet nozzle 4 is disposed in an upper region of the top part 2 and slopes upwards preferably at an angle of about 5 symmetry of the top part 2. The mouthpiece (not shown) can then be slid over the outlet nozzle 4.
It is found that with the chosen shape, the compressed gas advantageously is at an excess pressure of 1.1.times.10.sup.5 Pa, with the result that a total output of about 800 mg/min can be obtained.
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