US 11,806,522 B2
Needle-array devices and related methods
Mirko Georgiev Mirkov, Chelmsford, MA (US); and James Boll, Auburndale, MA (US)
Assigned to CYNOSURE, LLC, Westford, MA (US)
Filed by Cynosure, LLC, Westford, MA (US)
Filed on May 5, 2021, as Appl. No. 17/308,898.
Claims priority of provisional application 63/020,461, filed on May 5, 2020.
Prior Publication US 2021/0346683 A1, Nov. 11, 2021
Int. Cl. A61N 1/36 (2006.01); A61N 1/05 (2006.01); A61N 1/32 (2006.01); A61N 1/44 (2006.01); A61N 1/04 (2006.01); A61N 1/08 (2006.01)
CPC A61N 1/0502 (2013.01) [A61N 1/328 (2013.01); A61N 1/36017 (2013.01); A61N 1/36031 (2017.08); A61N 1/44 (2013.01); A61N 1/0476 (2013.01); A61N 2001/083 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of treating acne, the method comprising:
providing a needle array comprising a plurality of needles;
inserting plurality of needles into a dermis of a treatment area;
sending a low power pulse through each of the plurality of needles;
collecting impedance data relative to each of the plurality of needles;
detecting a location of an enlarged sebaceous gland in response to impedance data; and
energizing one or more of the plurality of needles to thermally treat the enlarged sebaceous gland, wherein normally sized sebaceous glands are spared from targeted energy exposure in response to contrast between impedance data.