Fluidization devices and methods of use

Patent metadata

Field	Value
Publication number	US-12226793-B2
Application number	US-202318496982-A
Country	US
Kind code	B2
Filing date	Oct 30, 2023
Priority date	Oct 2, 2018
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

A device for fluidizing and delivering a powdered agent, including a canister extending longitudinally from a first to a second end and defining a space within which a powdered agent is received, an inlet coupleable to a gas source for supplying gas to the space to fluidize the powdered agent to create a fluidized mixture, an outlet via which the gas mixture is delivered to a target area, a tube extending from the outlet into the interior space, the tube including a slot extending through a wall thereof so that gas mixture is passable from the interior space through the outlet via the second end and the slot, and a door movably coupled to the tube so that the door is movable over the slot to control a size of the slot open to the interior space of the canister.

First claim

What is claimed is:

1. A device for delivering a powdered agent, comprising:
a canister extending longitudinally from a first end to a second end, the canister defining an interior space configured to store the powdered agent;
an inlet fluidly coupled to a fluid source for supplying pressurized fluid towards the canister for delivering the powdered agent from the device;
an outlet configured to direct a mixture of the powdered agent and the pressurized fluid out of the device; and
a piston movably coupled to the canister and disposed between the powdered agent stored in the interior space and the outlet, the piston is configured to move within the canister relative to the first end and the second end to move the powdered agent out of the interior space and towards the outlet.

2. The device of claim 1 , wherein each of the inlet and the outlet is in fluid communication with the piston, such that the pressurized fluid from the inlet enters the canister through the piston and the mixture of the powdered agent and the pressurized fluid exits the canister for delivery to the outlet through the piston.

3. The device of claim 1 , wherein at least one of the first end and the second end of the canister is open to receive the piston within the interior space of the canister.

4. The device of claim 1 , wherein the fluid source includes a pneumatic cylinder configured to store the pressurized fluid.

5. The device of claim 4 , wherein the piston is configured to translate relative to the canister in response to the pneumatic cylinder releasing the pressurized fluid through the inlet and towards the piston.

6. The device of claim 1 , wherein the piston is configured to translate relative to the canister to a position that seals the interior space, thereby preventing the powdered agent from exiting the canister.

7. The device of claim 1 , wherein the device is configured to initiate delivery of the pressurized fluid from the fluid source to the inlet prior to supplying the pressurized fluid towards the canister.

8. The device of claim 7 , wherein the device is configured to move the piston relative to the canister in response to initiating delivery of the pressurized fluid from the fluid source to the inlet.

9. The device of claim 1 , further comprising a chamber positioned along a side of the piston.

10. The device of claim 9 , wherein the chamber is configured to receive at least a portion of the pressurized fluid therein.

11. The device of claim 1 , further comprising a turbine coupled to the piston.

12. The device of claim 11 , wherein the turbine is configured to move with the piston in response to the inlet supplying the pressurized fluid from the fluid source towards the turbine.

13. The device of claim 12 , wherein the turbine is configured to rotate relative to the canister in response to receiving a flow of the pressurized fluid from the inlet.

14. The device of claim 13 , wherein the turbine is configured to deliver the powdered agent towards the outlet in response to the turbine rotating relative to the canister.

15. A device for delivering a powdered agent, comprising:
a canister including an interior space defined between a first end and a second end, the interior space configured to store the powdered agent;
a fluid source configured to store a pressurized fluid; and
a piston movably coupled to the canister and disposed in the interior space between the powdered agent positioned adjacent to the first end and an outlet that is in fluid communication with the second end, the piston is configured to move relative to the first end and the second end to deliver the powdered agent out of the interior space.

16. The device of claim 15 , wherein at least one of the first end and the second end of the canister is open to receive the piston within the interior space of the canister.

17. The device of claim 15 , wherein the piston is configured to translate relative to the canister in response to the fluid source releasing the pressurized fluid towards the piston.

18. The device of claim 15 , wherein the device is configured to initiate delivery of the pressurized fluid from the fluid source and move the piston relative to the canister initiating delivery of the pressurized fluid from the fluid source to the inlet.

19. The device of claim 15 , further comprising a chamber positioned along a side of the piston that is configured to receive at least a portion of the pressurized fluid.

20. A device for delivering a powdered agent, comprising:
a canister including an interior space that is configured to store the powdered agent;
an inlet in fluid communication with a fluid source that is configured to store a pressurized fluid;
an outlet in fluid communication with the canister and the inlet to direct the powdered agent and the pressurized fluid out of the device; and
a piston configured to move relative to the interior space of the canister to direct the powdered agent out of the interior space and towards the outlet, wherein the piston is disposed in the interior space between the powdered agent and the outlet such that the powdered agent is stored in the canister upstream from the powdered agent.

Assignees

• Boston Scient Scimed Inc

Inventors

• Pic Andrew
• King Joseph
• Smith Amanda
• Grimsby Jessica
• Favreau John
• Lydecker Lauren

Classifications

• A61M13/00 Primary

  Insufflators for therapeutic or disinfectant purposes {, i.e. devices for blowing a gas, powder or vapour into the body (hand-held units in which gas flow is produced by muscular energy at the moment of use B05B11/062)} · CPC title

• A61M2202/064

  Powder · CPC title

• A61M15/0086

  Inhalation chambers · CPC title

• A61M11/02

  operated by air {or other gas} pressure applied to the liquid {or other product} to be sprayed or atomised {(sprayers for horticulture A01G, A01H; killing insects A01M; air humidifying by nozzles F24F6/14, F24F6/18; cooling by spraying F28B, F28C)} · CPC title

• A61M15/0008

  rotating by airflow · CPC title