IP Library Granted Patent US 12,180,456
Granted Patent B2
US 12,180,456 · App. 18/395,415 · Granted Dec 31, 2024

Tissue healing

Inventors: Niraj Kumar Doshi (Valencia, CA); Jugal Kapadia (Valencia, CA); Matthew Krywcun (Laguna Niguel, CA); David Allen Fencil (Valencia, CA); David Melbye (Valencia, CA); Katie Bush (Marblehead, MA); Carl Swindle (San Clemente, CA); Paul Faucher (San Diego, CA); Matthew Richard Johnson (San Diego, CA); Adam Livingston (San Diego, CA); Michael MacCollum (San Diego, CA); Evan Misuraca (San Diego, CA); Kyle Stewart (San Diego, CA); Mikhail Tikh (San Diego, CA); Austin Wolf (San Diego, CA)
Assignee: AVITA Medical Americas, LLC
C12M41/48B01L3/50255C12M3/02C12M3/08C12M21/08C12M23/12C12M23/38C12M23/42C12M23/50C12M25/04C12M27/10C12M33/00C12M33/14C12M41/18G01N1/286B01L2300/042G01N2001/2866
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Quick Facts
Patent No.
US 12,180,456
App. No.
18/395,415
Granted
Dec 31, 2024
Kind
B2
Abstract

One or more methods for treating a tissue site comprises collecting a tissue sample that has keratinoytes and placing the tissue sample in a cartridge that has a well plate, positioning the cartridge within a base unit that has a tissue disaggregator, activating the base unit to rotate the well plate to align wells in the well plate with the tissue sample and the tissue disaggregator, operate the tissue disaggregator to separate the tissue sample to form a regenerative epidermal suspension, and provide the regenerative epidermal suspension to a tissue site to enhance healing of the tissue site.

Claims (24)

1. A method of treating a tissue site, comprising:

collecting a tissue sample and placing the tissue sample in a cartridge comprising a well plate, the tissue sample comprising keratinocytes;

positioning the cartridge within a base unit, the base unit comprising a tissue disaggregator;

via a processor, activating the base unit to rotate the well plate and operate the tissue disaggregator, wherein the well plate is rotated to align one or more wells in the well plate with the tissue sample and the tissue disaggregator, and wherein operation of the tissue disaggregator separates the tissue sample to form a regenerative epidermal suspension; and

providing the regenerative epidermal suspension to a tissue site such that healing of the tissue site is enhanced.

2. The method of claim 1 , wherein the tissue sample comprises a skin sample.

3. The method of claim 1 , wherein the regenerative epidermal suspension comprises a mixed population of viable cells.

4. The method of claim 1 , wherein the regenerative epidermal suspension comprises fibroblasts.

5. The method of claim 1 , wherein the regenerative epidermal suspension comprises melanocytes.

6. The method of claim 1 , wherein the tissue site is a burn tissue site.

7. The method of claim 1 , wherein the tissue site is a full-thickness skin defect.

8. The method of claim 1 , wherein the cartridge further comprises a cover comprising a raised processing opening.

9. The method of claim 8 , further comprising placing the tissue sample in a cup positioned within the raised processing opening.

10. The method of claim 9 , wherein activating the base unit causes the cup to be lowered into a well of the well plate.

11. The method of claim 1 , wherein the tissue disaggregator is a pestle.

12. The method of claim 1 , wherein the well plate comprises an enzyme well.

13. The method of claim 12 , further comprising placing an enzyme within the enzyme well, the enzyme configured to separate tissue.

14. The method of claim 12 , wherein the well plate is positioned such that the enzyme well is positioned beneath the tissue sample.

15. The method of claim 12 , wherein activating the base unit causes the tissue aggregator to act on the tissue sample in the presence of enzyme in the enzyme well.

16. The method of claim 1 , wherein the well plate comprises a buffer well.

17. The method of claim 16 , further comprising placing a buffer within the buffer well.

18. The method of claim 16 , wherein activating the base unit causes the well plate to rotate such that the buffer well is positioned beneath the tissue sample.

19. The method of claim 18 , wherein activating the base unit causes the tissue aggregator to act on the tissue sample in the presence of the buffer in the buffer well.

20. The method of claim 1 , wherein the well comprises one or more raised processing elements.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Jan 14, 2026
From: ORCO IV LLC
To: AVITA MEDICAL AMERICAS, LLC
Reel/Frame 073473/0540 →
SECURITY INTEREST Recorded Jan 13, 2026
From: AVITA MEDICAL, INC.; AVITA MEDICAL AMERICAS, LLC
To: PERCEPTIVE CREDIT HOLDINGS V, LP
Reel/Frame 073458/0492 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2024
From: DOSHI, NIRAJ KUMAR; KAPADIA, JUGAL; KRYWCUN, MATTHEW; FENCIL, DAVID; MELBYE, DAVID; BUSH, KATIE; SWINDLE, CARL; FAUCHER, PAUL; JOHNSON, MATTHEW RICHARD; LIVINGSTON, ADAM; MACCOLLUM, MICHAEL; MISURACA, EVAN; STEWART, KYLE; TIKH, MIKHAIL; WOLF, AUSTIN
To: AVITA MEDICAL AMERICAS, LLC
Reel/Frame 069326/0130 →
SECURITY INTEREST Recorded Apr 1, 2024
From: AVITA MEDICAL AMERICAS, LLC
To: ORCO IV LLC
Reel/Frame 066960/0144 →
Continuity (3)
Provisional Application 63533586 · Aug 18, 2023
Provisional Application 63435446 · Dec 27, 2022
Related Publication 20240209296A1 · Jun 27, 2024
Cited By (4)
US 1,112,812 US 12,270,019 US 12,281,298 US 12,570,949