Aerosol delivery device
First Claim
1. An aerosol delivery system comprising:
- a vessel comprising;
a first end comprising a resealable fitting for connecting with a gas supply;
a body having a liquid reservoir and a gas passage independent of the liquid reservoir, wherein the liquid reservoir and the gas passage are in communication with the gas supply via the resealable fitting, and wherein the body is configured to be adjacent to the resealable fitting when the resealable fitting is attached to the gas supply; and
a second end connected with a length of multi-lumen tubing, the second end defining a liquid path from the liquid reservoir and to a liquid lumen in the multi-lumen tubing, and a gas path from the gas passage to at least one gas lumen in the multi-lumen tubing;
a tube adapter having an inlet port connected to an end of the multi-lumen tubing, a tube opening sized to connect with a tube, wherein outlets for the gas and liquid lumens at the end of the multi-lumen tubing are arranged such that a gas issuing from the at least one gas lumen and liquid issuing from the liquid lumen continuously form an aerosol inside the tube adapter; and
wherein the first end of the vessel further defines a channel configured to direct a first portion of the gas received at the resealable fitting into the gas passage and a second portion of the gas to the liquid reservoir.
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Accused Products
Abstract
An aerosol delivery system is disclosed that is a single-use (disposable) continuous nebulizer system designed for use with mechanically ventilated patients to aerosolize medications for inhalation with a general purpose nebulizer, or for connection with devices usable in endoscopic procedures. The system separates the liquid reservoir from the nebulization process taking place either at the adapter hub, where it fits into an endotracheal tube (ETT), or a gas humidifier, where the aerosol may treat a gas used in an endoscopic procedure, with a multi-lumen tube configured to nebulize liquid and air at its distal end. The refillable liquid reservoir is mounted away from the immediate treatment zone, avoiding orientation issues associated with other types of nebulizers having a self-contained reservoir. The system can produce aerosols having a wide range of droplet sizes, depending upon central lumen diameter, with values of MMAD that range from 4 to 30 μm.
60 Citations
16 Claims
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1. An aerosol delivery system comprising:
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a vessel comprising; a first end comprising a resealable fitting for connecting with a gas supply; a body having a liquid reservoir and a gas passage independent of the liquid reservoir, wherein the liquid reservoir and the gas passage are in communication with the gas supply via the resealable fitting, and wherein the body is configured to be adjacent to the resealable fitting when the resealable fitting is attached to the gas supply; and a second end connected with a length of multi-lumen tubing, the second end defining a liquid path from the liquid reservoir and to a liquid lumen in the multi-lumen tubing, and a gas path from the gas passage to at least one gas lumen in the multi-lumen tubing; a tube adapter having an inlet port connected to an end of the multi-lumen tubing, a tube opening sized to connect with a tube, wherein outlets for the gas and liquid lumens at the end of the multi-lumen tubing are arranged such that a gas issuing from the at least one gas lumen and liquid issuing from the liquid lumen continuously form an aerosol inside the tube adapter; and wherein the first end of the vessel further defines a channel configured to direct a first portion of the gas received at the resealable fitting into the gas passage and a second portion of the gas to the liquid reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An aerosol delivery system comprising:
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a vessel comprising; a first end comprising a resealable fitting for connecting with a gas supply; a body having a liquid reservoir and a gas passage independent of the liquid reservoir, wherein the liquid reservoir and the gas passage are each in direct communication with gas supply via separate channels positioned in the first end adjacent to the resealable fitting, and wherein the body is configured to be adjacent to the resealable fitting when the resealable fitting is attached to the gas supply; and a second end connected with a length of multi-lumen tubing, the second end defining a liquid path from the liquid reservoir to a liquid lumen in the multi-lumen tubing, and a gas path from the gas passage to at least one gas lumen in the multi-lumen tubing; and an inlet port resealably connected to an end of the multi-lumen tubing, wherein outlets for the gas and liquid lumens at the end of the multi-lumen tubing are arranged to continuously form an aerosol at the inlet port when a gas issues from the at least one gas lumen and a liquid issues from the liquid lumen. - View Dependent Claims (15, 16)
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Specification