Pixel array medical systems, devices and methods

Patent metadata

Field	Value
Publication number	US-11839402-B2
Application number	US-201916452346-A
Country	US
Kind code	B2
Filing date	Jun 25, 2019
Priority date	Dec 17, 2010
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

Embodiments include devices and methods configured to fractionally resect skin and/or fat. Fractional resection is applied as a stand-alone procedure in anatomical areas that are off-limits to conventional plastic surgery due to the poor tradeoff between the visibility of the incisional scar and amount of enhancement obtained. Fractional resection is also applied as an adjunct to established plastic surgery procedures such as liposuction, and is employed to significantly reduce the length of incisions required for a particular application. The shortening of incisions has application in both the aesthetic and reconstructive realms of plastic surgery.

First claim

What is claimed is:

1. A method comprising:
configuring a resection device to include a scalpet assembly comprising a scalpet array including a plurality of scalpets, wherein each scalpet includes a shaft comprising a lumen coupled to a distal end configured to incise tissue at a target site;
configuring the resection device to perform fractional resections by incising skin tissue at the target site according to a protocol comprising a map of fractional resections configured to effect fractional skin tightening, wherein configuring the resection device comprises coupling a rotational force to the at least one scalpet configured to rotate the at least one scalpet around its central axis; and
configuring the resection device for removing fractionally resected tissue from the target site.

2. The method of claim 1 , wherein configuring the resection device comprises configuring the distal end of each scalpet to include at least one of a sharpened region and a blunt region.

3. The method of claim 1 , wherein configuring the resection device comprises configuring the at least one scalpet to include a proximal end configured to pass tissue from the lumen.

4. The method of claim 1 , wherein configuring the resection device comprises configuring the resection device to include a depth control device configured as adjustable to control a depth of the penetration of the scalpet array into the tissue.

5. The method of claim 1 , wherein configuring the resection device for removing fractionally resected tissue configuring the scalpet assembly to couple to a vacuum component.

6. The method of claim 1 , wherein the fractional resection comprises fractional resection of skin.

7. The method of claim 6 , wherein the protocol comprises parameters of a fractional field, wherein the parameters include at least one of location, size, and contour.

8. The method of claim 7 , wherein the protocol comprises a density of the fractional resection of the skin, wherein the density includes a percentage of fractionally resected skin within the fractional field, and an amount of the fractional skin tightening is proportional to the density.

9. The method of claim 8 , wherein the protocol comprises varying the density between a plurality of regions of the fractional field.

10. The method of claim 6 , wherein the fractional resection comprises fractional resection of fat.

11. The method of claim 10 , wherein the fractional resection of fat comprises percutaneous vacuum resection of the fat.

12. The method of claim 10 , wherein the fractional resection of fat comprises topical percutaneous vacuum resection of the fat through fractional defects generated using the fractional resection of skin.

13. The method of claim 10 , wherein the fractional resection of fat comprises fractional resection of tissue of at least one of a sub-dermal fat layer and a subcutaneous fat layer.

14. The method of claim 10 , wherein the fractional resection of fat comprises fractionally resecting at least one layer of fat in anatomical continuity with the fractional resection of the skin adjacent the at least one layer of fat.

15. The method of claim 10 , wherein the protocol comprises an amount of tissue for removal during the fractional resection of fat according to an amount of dimensional contouring of the topographical map, wherein the contouring includes three-dimensional contouring.

16. The method of claim 10 , wherein the protocol comprises closing an incision using at least one of the fractional resection of skin and the fractional resection of fat, wherein at least one dimension of the incision is reduced and iatrogenic incisional skin redundancies are eliminated.

17. The method of claim 10 , wherein the protocol is generated with patient data and includes the map comprising a topographical map of the fractional resections configured for at least one of the fractional skin tightening and contouring.

18. The method of claim 1 , wherein the resections are closed using directed closure to selectively enhance the contouring.

Assignees

• Srgi Holdings Llc

Inventors

• Knowlton Edward

Classifications

• A61B17/322 Primary

  Skin grafting apparatus · 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

• 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

• A61B18/1402

  Probes for open surgery · CPC title

• A61B18/149

  bow shaped or with rotatable body at cantilever end, e.g. for resectoscopes, or coagulating rollers · CPC title