Pixel array medical systems, devices and methods

Patent metadata

Field	Value
Publication number	US-11937846-B2
Application number	US-201816203138-A
Country	US
Kind code	B2
Filing date	Nov 28, 2018
Priority date	Dec 6, 2013
Publication date	Mar 26, 2024
Grant date	Mar 26, 2024

Abstract

A system comprising a handpiece and drive system configured to removably couple to a proximal end of a housing. A scalpet assembly is configured to removeably couple to the housing, and includes a scalpet array comprising at least one scalpet configured for rotation. The scalpet array is configured to harvest dermal plugs via fractional resection. A collection chamber is configured to collect the dermal plugs, and to house formation of an injectable filler by mincing the dermal plugs, and mixing the dermal plugs with a carrier. The injectable filler is configured for bulk fill. The collection chamber includes a loading port, and a cannular syringe is configured to mate with the loading port to receive the injectable filler, and to deliver the injectable filler for the bulk fill.

First claim

What is claimed is:

1. A method, comprising:
removably coupling a handpiece including a drive component to a housing;
configuring a scalpet assembly to include a scalpet array comprising at least one scalpet configured to rotate in response to force of the drive component;
removably coupling the scalpet assembly to the housing and the drive component to harvest dermal plugs from a donor site via fractional resection;
coupling a collection chamber to the housing to collect the dermal plugs, wherein the collection chamber includes a loading port configured to receive a cannular syringe;
forming an injectable filler in the collection chamber by mincing the dermal plugs and mixing the dermal plugs with a carrier, wherein the injectable filler is configured for bulk fill including at least one of biomechanical bulk fill and reconstructive bulk fill.

2. The method of claim 1 , comprising coupling the cannular syringe to the loading port to receive the injectable filler, wherein the cannular syringe is configured to deliver the injectable filler for the bulk fill.

3. The method of claim 1 , comprising configuring the biomechanical bulk fill to include volume expansion of a soft tissue depression configured to provide three-dimensional enhancement of an aesthetic contour.

4. The method of claim 1 , comprising configuring the reconstructive bulk fill to include delivery of the injectable filler via the cannular syringe into a region adjacent soft tissue contour deformity.

5. The method of claim 1 , comprising configuring the injectable filler to include a live autologous dermal matrix (LADMIX) injectable filler.

6. The method of claim 1 , comprising configuring the carrier to include at least one of a fluid, a gel, hyaluronic acid, hydrogel, saline, and a bioactive agent.

7. The method of claim 1 , comprising configuring the housing to include a vacuum port configured for coupling to a vacuum source, wherein the vacuum comprises pressure relatively lower than ambient air pressure, wherein the housing is configured to capture the plurality of dermal plugs using the vacuum.

8. The method of claim 1 , comprising configuring the collection chamber to collect the plurality of dermal plugs.

9. The method of claim 1 , comprising configuring the collection chamber to include at least one of a pressurized chamber and an unpressurized chamber.

10. The method of claim 1 , comprising configuring an end cap to removably couple to the housing, wherein the end cap includes a fitting configured to couple to at least one of a medical instrument and a plug, wherein the end cap replaces the scalpet assembly subsequent to collection of the plurality of dermal plugs.

11. The method of claim 10 , comprising configuring at least one mincing blade to removably couple to the drive component for rotation using force delivered from the drive component, wherein the mincing blade replaces the scalpet assembly subsequent to collection of the plurality of dermal plugs.

12. The method of claim 11 , comprising configuring the collection chamber to include mincing of the plurality of dermal plugs, wherein the mincing comprises at least one of rotary mincing, reciprocating mincing, oscillating mincing, compressive mincing, and compressive morselization.

13. The method of claim 10 , comprising configuring the collection chamber to load a composition comprising the dermal plugs into the cannular syringe coupled to the loading port, wherein the injectable filler is injected during a same procedure as the harvesting of the plurality of dermal plugs.

14. The method of claim 13 , comprising configuring the injectable filler to be injected into a recipient site on the subject, wherein the recipient site is different from the donor site.

15. The method of claim 14 , comprising generating a pocket at the recipient site for receiving the injectable filler, wherein the pocket is generated when at least one of a needle and the cannular syringe is advanced into a region adjacent the recipient site, wherein the injectable filler is injected into the pocket using the at least one of the needle and the cannular syringe.

16. The method of claim 14 , wherein the recipient site includes at least one of an aesthetic deformity, a furrow, a wrinkle, a fold, a vermillion cutaneous junction of an upper lip, a scar, a depressed scar, a contour deformity, a soft tissue contour deformity, a post traumatic depressed contour deformity, at least one site adjacent at least one of a urethra and a bladder, at least one site adjacent an esophageal sphincter, and at least one site adjacent a vocal cord.

17. The method of claim 1 , comprising configuring the scalpet array to deploy from the housing into tissue at the donor site to generate the plurality of dermal plugs at the donor site.

18. The method of claim 1 , wherein the plurality of dermal plugs is harvested from a plurality of donor sites.

19. The method of claim 1 , comprising configuring the plurality of dermal plugs to exclude the epidermis, wherein the epidermis is removed in at least one region of the donor site.

20. The method of claim 19 , wherein the epidermis is removed by delaminating the epidermis from dermis in the at least one region, wherein the delaminating comprises at least one of blistering skin, vibratory shearing, and superficial injection.

21. The method of claim 19 , wherein the epidermis is removed by dermabrasion.

22. The method of claim 1 , wherein the plurality of dermal plugs is harvested by fractionally resecting at least one dermal plug from at least one region of the donor site.

23. The method of claim 1 , wherein the plurality of dermal plugs is harvested via at least one fractional resection application at the donor site.

24. The method of claim 23 , wherein the at least one fractional resection application comprises a first fractional resection application and a second fractional resection application.

25. The method of claim 24 , wherein the first fractional resection application comprises epidermis removal, wherein the second fractional resection application comprises fractional resection through dermis, wherein the second fractional resection comprises at least one of a partial-thickness fractional resection through the dermis and a full-thickness fractional resection through the dermis.

26. The method of claim 1 , comprising configuring the drive component to include a geared drive component.

27. The method of claim 1 , comprising configuring the scalpet assembly to transmit an axial force to the target site, wherein the axial force comprises at least one of a continuous axial force and an impact force.

28. The method of claim 1 , comprising configuring at least one scalpet of the scalpet array to include a cylindrical scalpet including a cutting surface on a distal end of the scalpet, wherein the cutting surface includes at least one of a sharpened edge and a serrated edge.

Assignees

• Srgi Holdings Llc

Inventors

• Knowlton Edward

Classifications

• A61B17/322 Primary

  Skin grafting apparatus · CPC title

• A61B17/320068

  using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745) · CPC title

• A61B17/32053

  Punch like cutting instruments, e.g. using a cylindrical or oval knife (A61B17/326 takes precedence; trepans A61B17/1695) · CPC title

• A61B90/03

  Automatic limiting or abutting means, e.g. for safety · CPC title

• A61F13/12

  specially adapted for the head or neck · CPC title