Metered dose atomizer

• US 9,452,274 B2
• Filed: 01/29/2014
• Issued: 09/27/2016
• Est. Priority Date: 01/20/2011
• Status: Active Grant

• Current Assignee: Pneumoflex Systems, LLC
• Original Assignee: Pneumoflex Systems, LLC
• Inventors: Addington, W. Robert, Miller, Stuart P.
• Primary Examiner(s): Vasat, Peter S
• Application Number:
  US14/166,903
• Publication Number:
  US 20140202458A1
• Time in Patent Office: 972 Days
• Field of Search: 239/338, 239/370, 261/78.1, 128/200.21
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0823 Detecting or evaluating cough events
• CPC Class Codes: A61B 5/087 Measuring breath flow
• CPC Class Codes: A61B 5/097 Devices for facilitating collection of breath or for directing breath into or through measuring devices
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 5/7282 Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• CPC Class Codes: A61J 17/001 Baby-comforters
• CPC Class Codes: A61J 7/0053 Syringes, pipettes or oral dispensers
• CPC Class Codes: A61M 11/06 of the injector type
• CPC Class Codes: A61M 15/0021 Mouthpieces therefor
• CPC Class Codes: A61M 15/0036 hollow piercing means
• CPC Class Codes: A61M 15/0086 Inhalation chambers
• CPC Class Codes: A61M 15/0091 mechanically breath-triggered
• CPC Class Codes: A61M 16/14 by mixing different fluids, one of them being in a liquid phase
• CPC Class Codes: A61M 16/201 Controlled valves
• CPC Class Codes: A61M 16/202 electrically actuated
• CPC Class Codes: A61M 2016/0027 pressure meter
• CPC Class Codes: A61M 2016/0039 in the inspiratory circuit
• CPC Class Codes: A61M 2205/13 with means for the detection of operative contact with patient, e.g. lip sensor
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/502 : User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/8225 : using incorporated gas cartridges for the driving gas
• CPC Class Codes: A61M 2206/14 : Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws

Abstract

An atomizer has a venturi nozzle positioned at an outlet end of an air line and has a discharge end and is oriented horizontally when in use and forms a mixing chamber at its discharge end. A valve is positioned at a canister port and actuable to allow a metered flow of gas at a predetermined pressure and time through the air line and venturi nozzle. A suction line extends from the venturi nozzle and mixing chamber to a medication receiver and draws medication upward and mixes it with gas passing through the venturi nozzle into the mixing chamber and atomizes the medication into a mist.

Claims

1. An atomizer, comprising:

a atomizer body comprising an air channel section and atomizer outlet;

an air line extending through the air channel section and having an inlet and an outlet, including a flared extension at the outlet;

a venturi nozzle at the outlet end of the air line and having a discharge end and oriented horizontally when in use;

a canister port at the inlet end of the air line that receives a gas canister, and a valve positioned at the canister port and actuable to allow a metered flow of gas at a predetermined pressure and time to flow from the gas canister and through the air line and venturi nozzle;

a medication receiver carried by the atomizer body proximal to the venturi nozzle and configured to receive and lock in position a medication container, the medication container including knob extensions to lock it into position; and

a suction line having a proximal and distal end, and the proximal end connected to the discharge end of the venturi nozzle and having a tapered bore and extending from the venturi nozzle to the medication receiver and configured to connect at its distal end into the medication container locked in position at the medication receiver, wherein the proximal end of the suction line includes a diffuser configured with the suction line and venturi nozzle as a mixing chamber, wherein gas that is mixed with medication in the mixing chamber impacts the diffuser to aid in forming a mist, wherein the venturi nozzle, suction line and diffuser are connected as an integral one-piece replaceable unit, wherein the venturi nozzle outputs air in a direction that is normal to the suction line.

2. The atomizer according to claim 1, wherein the valve is actuated to deliver gas when pressure is applied downward on the gas canister.

3. The atomizer according to claim 1, wherein the valve actuates a pulsed and metered flow of gas during atomization.

4. An atomizer, comprising:

a substantially L-shaped atomizer body forming a vertical portion and a horizontal portion and comprising an air channel section and atomizer outlet;

an air line extending through the air channel section and having an inlet and outlet, including a flared extension at the outlet;

a venturi nozzle at the outlet end of the air line within the horizontal portion of the atomizer body and oriented horizontally when in use;

a canister port at the inlet end of the air line within the vertical portion of the atomizer body that receives a gas canister, and a valve positioned at the canister port and actuable to allow a metered flow of gas at a predetermined pressure and time to flow from the gas canister and through the air line and venturi nozzle;

a medication receiver carried in the horizontal portion of the atomizer body proximal to the venturi nozzle and configured to receive and lock in position a medication container, the medication container including knob extensions to lock it into position; and

a suction line having a proximal and distal end, and the proximal end connected to the discharge end of the venturi nozzle and having a tapered bore and extending from the venturi nozzle to the medication receiver and configured to connect at its distal end into the medication container locked in position at the medication receiver, wherein the proximal end of the suction line includes a diffuser configured with the suction line and venturi nozzle as a mixing chamber, wherein gas that is mixed with medication in the mixing chamber impacts the diffuser to aid in forming a mist, wherein the venturi nozzle, suction line and diffuser are connected as an integral one-piece replaceable unit, wherein the venturi nozzle outputs air in a direction that is normal to the suction line.

5. The atomizer according to claim 4, wherein the valve is actuated to deliver gas when pressure is applied downward on the gas canister.

6. The atomizer according to claim 4, wherein the valve actuates a pulsed and metered flow of gas during atomization.

7. An atomizer, comprising:

a atomizer body comprising an air channel section and atomizer outlet;

an air line extending through the air channel section and having an inlet and an outlet and including a flared extension at the outlet;

a venturi nozzle at the outlet end of the air line and having a discharge end and oriented horizontally when in use;

a canister port at the inlet end of the air line that receives a gas canister, and a valve positioned at the canister port and actuable to allow a metered flow of gas at a predetermined pressure and time to flow from the gas canister and through the air line and venturi nozzle;

a medication receiver carried by the atomizer body within the air channel section proximal to the venturi nozzle and configured to receive and lock in position a medication container and comprising a cylindrical support including a top support surface having an orifice, the medication container including knob extensions to lock it into position; and

a suction line having a proximal and distal end, and the proximal end connected to the discharge end of the venturi nozzle and having a tapered bore and extending from the venturi nozzle through the orifice of the top support surface to the medication receiver and configured to connect at its distal end into the medication container locked in position at the medication receiver, wherein the proximal end of the suction line includes a diffuser configured with the suction line and venturi nozzle as a mixing chamber, wherein gas that is mixed with medication in the mixing chamber impacts the diffuser to aid in forming a mist, wherein the venturi nozzle, suction line and diffuser are connected as an integral one-piece replaceable unit, wherein the venturi nozzle outputs air in a direction that is normal to the suction line.

8. The atomizer according to claim 7, wherein said suction line includes a flange that is seated on the top support surface of the medication receiver to support the venturi nozzle, mixing chamber and suction line in position within the atomizer body.

9. The atomizer according to claim 7, wherein the valve is actuated to deliver gas when pressure is applied downward on the gas canister.

10. The atomizer according to claim 7, wherein the valve actuates a pulsed flow of gas during atomization.