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US 12,758,721 B2Granted
Therapeutic powder applicator
AssigneeDavol Inc.
InventorsJonathan Bruce Trexler, Oliver Sowerby, Steve McLellan, Michael Herd, Charles Lowndes, Jon Jamin
Life of this patent
Estimating the term…
Abstract
Therapeutic powder applicators and their methods of operation are described. In some embodiments, a first flow of gas may flow through a distal porous portion of a chamber containing a therapeutic powder. This gas may fluidize and entrain the therapeutic powder and flow the entrained powder through an outlet that is in fluid communication with the chamber.
Claims51
A therapeutic powder applicator comprising:
- a chamber configured to contain a therapeutic powder, wherein at least a distal portion of the chamber includes a porous membrane comprising a plurality of pores, and wherein the chamber is at least partially formed from the porous membrane such that the porous membrane defines a volume of the chamber and is configured to support the therapeutic powder during operation;
- a first pressurized gas source in fluid communication with the chamber through the plurality of pores of the distal portion of the chamber;
- and
- an outlet in fluid communication with the chamber, wherein the distal portion of the chamber is located adjacent to the outlet,
- wherein the first pressurized gas source and the chamber are configured such that a first flow of gas from the first pressurized gas source flows around at least a proximal portion of the chamber before entering the plurality of pores of the distal portion of the chamber to entrain the therapeutic powder in the first flow of gas, and wherein the therapeutic powder applicator is configured to be a handheld applicator and the outlet is configured to deliver the therapeutic powder to a target area of a subject.
2 more elements
A therapeutic powder applicator comprising:
- a chamber configured to contain a therapeutic powder, wherein at least a distal portion of the chamber includes a porous membrane comprising a plurality of pores, and wherein the chamber is at least partially formed from the porous membrane such that the porous membrane defines a volume of the chamber and is configured to support the therapeutic powder during operation;
- a first gas inlet;
- and
- an outlet in fluid communication with the chamber, wherein the first gas inlet is in fluid communication with the outlet through the plurality of pores of the distal portion of the chamber, wherein the distal portion of the chamber is located adjacent to the outlet,
- wherein the first gas inlet and the chamber are configured such that a first flow of gas from the first gas inlet flows around at least a proximal portion of the chamber before entering the plurality of pores of the distal portion of the chamber to entrain the therapeutic powder in the first flow of gas, and wherein the therapeutic powder applicator is configured to be a handheld applicator and the outlet is configured to deliver the therapeutic powder to a target area of a subject.
2 more elements
A method of applying a therapeutic powder, the method comprising:
- flowing a first gas flow around at least a proximal portion of a chamber before flowing the first gas flow through a plurality of pores of a porous membrane disposed at a distal portion of the chamber containing the therapeutic powder, wherein the chamber is at least partially formed from the porous membrane such that the porous membrane defines a volume of the chamber and is configured to support the therapeutic powder during operation;
- entraining the therapeutic powder in the first gas flow;
- flowing the entrained therapeutic powder through an outlet in fluid communication with the chamber, wherein the distal portion of the chamber is located adjacent to the outlet;
- and
- delivering the therapeutic powder from the outlet to a target area of a subject.
2 more elements
Dependencies are inferred from the claim text.