Granted Patent
B2
US 12,247,784 · App. 18/411,799 · Granted Mar 11, 2025
Baffle plate used in a disposable for a spray drying system
Inventors:
Robert R. Andrews (Norfolk, MA); Herman E. Snyder (Lafayette, IN); William J. Merritt (Danvers, MA); Evan P. Ordway (Salem, MA); Clair Strohl (Emmaus, PA)
Assignee:
Velico Medical, Inc.
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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 to 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.
Claims (28)
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 liquid from a liquid source and a pressurized aerosol gas from a pressurized aerosol gas source, the spray dry nozzle assembly comprises a vortex generator configured to provide the pressurized aerosol gas flows in a vortex pattern and atomize the liquid entering the drying chamber to obtain atomized liquid droplets;
ii) one or more drying gas jets adapted to receive a drying gas from a drying gas source to the drying chamber,
B) the drying chamber, attached to the spray drying head configured to evaporate the atomized liquid droplets to thereby obtain dried particles and humid air,
C) a capture filter adapted to capture the dried particles are captured and the humid air is allowed to pass.
2. The spray drying disposable device of claim 1 , further comprising a plenum having a drying gas inlet in communication with the drying gas source and configured to provide uniform pressure of the drying gas resides in the plenum.
3. The spray drying disposable device of claim 1 , further comprising a baffle plate that comprises the one or more drying gas jets.
4. The spray drying disposable device of claim 3 , further comprising a baffle filter through which the drying gas flows.
5. The spray drying disposable device of claim 1 , wherein the liquid is plasma and the dried particles are dried plasma particles.
6. The spray drying disposable device of claim 4 , wherein the baffle filter comprises about a 0.2 micron filter.
7. The spray drying disposable device of claim 4 , wherein the baffle plate comprises one or more ribs on which the baffle filter rests.
8. The spray drying disposable device of claim 7 , wherein the baffle plate has an inner area to an outer area.
9. The spray drying disposable device of claim 4 , wherein the baffle filter communicates with an inner base ring and an outer base ring.
10. The spray drying disposable device of claim 8 , wherein the one or more ribs on which the baffle filter radiate from the inner area to the outer area, thereby having one or more radiating ribs.
11. The spray drying disposable device of claim 10 , wherein the one or more radiating ribs comprise connecting ribs and non-connecting ribs.
12. The spray drying disposable device of claim 10 , wherein the baffle plate comprises one or more channels communicating with the one or more drying gas jets.
13. The spray drying disposable device of claim 12 , wherein the one or more channels are defined by an arrangement of the one or more radiating ribs.
14. The spray drying disposable device of claim 13 , wherein the one or more channels define one or more pie shaped air channel communicating with the one or more drying gas jets.
15. The spray drying disposable device of claim 14 , wherein the one or more pie shaped air channel is configured to form an air curtain to impede the dried plasma-particles from depositing on an inner side wall of the drying chamber.
16. The spray drying disposable device of claim 7 , wherein at least some of the one of more ribs are tapered sufficient to prevent tearing of or damage to the baffle filter during use.
17. The spray drying disposable device of claim 16 , wherein at least some of the one of more ribs raise at least a portion of the baffle filter of the baffle plate during use.
18. The spray drying disposable device of claim 1 wherein the drying gas source receives the drying gas through a deflector that directs the drying gas to a side wall of the plenum.
19. The spray drying disposable device of claim 18 , wherein the drying gas source receives the drying gas through the deflector that comprises a 90 degree elbow.
20. The spray drying disposable device of claim 19 , the deflector distributes the drying gas throughout the plenum creating a uniform pressure reservoir.
21. The spray drying disposable device of claim 1 , wherein, during when in use, rapid mixing of the atomized liquid droplets with the drying gas occurs.
22. The spray drying disposable device of claim 21 , wherein rapid mixing increases a rate of evaporation of the atomized liquid droplets into the dried particles.
23. The spray drying disposable device of claim 22 , the atomized liquid droplets have a size distribution ranging between about 1 microns and about 35 microns.
Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jul 24, 2024
From: ANDREWS, ROBERT R.; MERRITT, WILLIAM J.; ORDWAY, EVAN P; STROHL, CLAIR
To: VELICO MEDICAL, INC
Reel/Frame 068064/0405 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jul 24, 2024
From: PARSEC SOLUTIONS LLC
To: VELICO MEDICAL, INC
Reel/Frame 068064/0561 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jul 24, 2024
From: SNYDER, HERMAN E.
To: PARSEC SOLUTIONS LLC
Reel/Frame 068064/0591 →
Continuity (3)
Continuation
17945124
· Sep 15, 2022
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