Disposable for a spray drying system

Patent metadata

Field	Value
Publication number	US-12246266-B2
Application number	US-202318467102-A
Country	US
Kind code	B2
Filing date	Sep 14, 2023
Priority date	Sep 15, 2022
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

The present invention includes a spray drying disposable device for use in a spray drying system. The disposable has a spray drying head and a plasma drying chamber. The head has a spray dry nozzle assembly in fluid communication with the plasma source and the pressurized aerosol gas source. The pressurized gas flows in a vortex pattern that atomizes plasma droplets in the chamber. The head also includes a plenum has uniform air pressure of the drying gas. A baffle plate forms the floor of the plenum having drying gas jets that supply drying gas to the chamber. The atomized plasma droplets evaporate in the presence of the drying gas emitted from the jets to obtain dried plasma particles and humid air. A capture filter captures the dried plasma particles and allows the humid air to pass. The humid air passes through the gas outlet and the exhaust port.

First claim

What is claimed is:

1. A spray drying disposable device, having a spray drying head and a drying chamber, the spray drying disposable device comprising:
A) the spray drying head comprising:
i) a spray dry nozzle assembly adapted to receive a plasma source providing a plasma and a pressurized aerosol gas source providing a pressurized aerosol gas; the spray dry nozzle assembly comprises:
(1) a vortex generator adapted to provide the pressurized aerosol gas in a vortex pattern; and
(2) a cannula comprising a cannula opening in communication with the plasma, a wall with an inner surface and an outer surface, a top end, and a bottom end, wherein the bottom end has a bottom surface;
wherein the spray dry nozzle assembly, when in use, atomizes the plasma entering the drying chamber to obtain atomized plasma droplets; and

B) the drying chamber, configured to evaporate the atomized plasma droplets with a drying gas emitted from a drying gas source to thereby obtain dried plasma particles and humid air, wherein the dried plasma particles are captured and the humid air is allowed to pass.

2. The spray drying disposable device of claim 1 , wherein the cannula of the spray dry nozzle assembly has an inner diameter in a range between about 0.010 inches and about 0.040 inches and an outer diameter between about 0.030 inches and about 0.060 inches.

3. The spray drying disposable device of claim 1 , wherein the vortex generator is in communication with the pressurized aerosol gas source.

4. The spray drying disposable device of claim 3 , wherein the vortex generator comprises a plurality of channels and a plurality of pads to create the vortex pattern of pressurized aerosol gas.

5. The spray drying disposable device of claim 4 , wherein the plurality of channels and the plurality of pads are curved.

6. The spray drying disposable device of claim 5 , the plurality of channels is curved and the plurality of pads have one or more curved edges.

7. The spray drying disposable device of claim 1 , the spray dry nozzle assembly comprises an annulus through which the pressurized aerosol gas flows, said annulus has an annulus diameter; wherein the cannula emits plasma through said cannula opening, and said annulus emits the vortex pattern of the pressurized aerosol gas.

8. The spray drying disposable device of claim 1 , wherein the bottom surface has an angled plane that has at least a portion that is angled in relation to an inner surface plane of the inner surface of the wall such that the cannula is an angled edge cannula.

9. The spray drying disposable device of claim 1 , wherein the bottom surface has a first portion having an angled plane and a second portion having a flat plane that forms a substantially flat edge, wherein the angled plane of the bottom surface is angled in relation to an inner surface plane of the inner surface of the wall such that the cannula is an angled edge cannula, wherein the angled plane of the bottom surface is adjacent to the inner surface of the wall.

10. The spray drying disposable device of claim 9 , wherein the angled plane is disposed at an angle in a range between about 120 degrees and about 150 degrees relative to the inner surface plane, and wherein the flat plane is disposed at an angle of about 90 degrees relative to inner surface plane to thereby obtain the angled edge cannula.

11. The spray drying disposable device of claim 8 , wherein the angled edge cannula, when used in spray drying plasma, results in an amount of one or more functional proteins from reconstituted previously dried plasma dried with the spray drying disposable device, said amount is within about 1% and 25% of an amount of the one or more functional proteins from reconstituted previously dried plasma dried with a spray drying disposable device having a nozzle without an angled cannula.

12. The spray drying disposable device of claim 11 , wherein the one or more functional proteins from reconstituted previously dried plasma dried with the spray drying disposable device comprises von Willebrand factor (vWF).

13. The spray drying disposable device of claim 12 , wherein an amount of vWF is measured by von Willebrand Factor Ristocetin Cofactor.

14. The spray drying disposable device of claim 12 , wherein an amount of vWF is measured by von Willebrand Factor Ristocetin Cofactor and the amount of vWF is within about 20% of an amount of vWF in donor plasma.

15. The spray drying disposable device of claim 12 , wherein an amount of vWF is measured by von Willebrand Factor Ristocetin Cofactor and the amount of vWF is within about 10% of an amount of vWF in donor plasma.

16. A spray drying disposable device, having a spray drying head and a plasma drying chamber, the spray drying disposable device comprising:
A) the spray drying head comprising:
i) a spray dry nozzle assembly adapted to receive a plasma source providing a plasma and a pressurized aerosol gas source providing a pressurized aerosol gas, the spray dry nozzle assembly comprises:
(1) a nozzle opening with a nozzle opening diameter;
(2) a cannula comprising a cannula opening, a wall with an inner surface and an outer surface, a top end, a bottom end having a bottom surface, an inner diameter having an inner length, and an outer diameter having an outer length; wherein an annulus is defined by a space between the nozzle opening diameter and the outer diameter of the cannula;
(3) a vortex generator in communication with the pressurized aerosol gas, wherein the vortex generator comprises a plurality of channels and a plurality of pads to create a vortex pattern of the pressurized aerosol gas, wherein the cannula is configured to emit plasma through said cannula opening and said annulus is configured to emit the vortex pattern of pressurized aerosol gas,
wherein the spray dry nozzle assembly, when in use, provide atomized plasma droplets;

B) the drying chamber, configured to evaporate the atomized plasma droplets with a drying gas emitted from a drying gas source to thereby obtain dried plasma particles and humid air, wherein the dried plasma particles are captured and the humid air is allowed to pass.

17. The spray drying disposable device of claim 16 , further comprising:
a plenum having a drying gas inlet in communication with the drying gas source adapted such that the drying gas resides in the plenum with uniform air pressure, wherein the plenum supports the nozzle assembly.

18. The spray drying disposable device of claim 17 , further comprising:
a baffle plate forming a floor of the plenum having one or more drying gas jets, wherein drying gas jets are configured to provide drying gas to the drying chamber and to form a drying air wall in the drying chamber.

19. The spray drying disposable device of claim 17 , further comprising:
a capture filter, residing in the drying chamber, wherein the capture filter captures the dried plasma particles and allows the humid air to pass.

20. The spray drying disposable device of claim 16 , further comprising:
A) a gas outlet, attached to an exhaust port, adapted to exhaust the humid air.

21. The spray drying disposable device of claim 16 , wherein the cannula of the nozzle assembly has an inner diameter in a range between about 0.010 inches and about 0.040 inches and an outer diameter between about 0.030 inches and about 0.060 inches.

22. The spray drying disposable device of claim 16 , the plurality of channels are curved and the plurality of pads have one or more curved edges.

Assignees

• Velico Medical Inc

Inventors

• Andrews Robert R
• Snyder Herman E
• Merritt William J
• Ordway Evan P
• Strohl Clair

Classifications

• F26B21/50

  Ducting arrangements from the source of air or other gases to the materials or objects being dried · CPC title

• F26B21/35

  Temperature; Pressure · CPC title

• F26B21/37

  Velocity of flow; Quantity of flow · CPC title

• F26B21/331

  by using sorbent or hygroscopic materials, e.g. chemical substances or molecular sieves · CPC title

• F26B3/12

  in the form of a spray {, i.e. sprayed or dispersed emulsions or suspensions (spray drying of solutions B01D1/18)} · CPC title