US 12,295,618 B2
Skin treatment tool applicator tip
Ed F. Nicolas, Signal Hill, CA (US); and William Cohen, Los Alamitos, CA (US)
Assigned to HydraFacial LLC, Long Beach, CA (US)
Filed by HydraFacial LLC, Long Beach, CA (US)
Filed on Mar. 2, 2022, as Appl. No. 17/685,005.
Application 17/685,005 is a continuation of application No. 16/992,823, filed on Aug. 13, 2020, granted, now 11,291,474.
Claims priority of provisional application 62/957,707, filed on Jan. 6, 2020.
Prior Publication US 2023/0000523 A1, Jan. 5, 2023
Int. Cl. A61B 17/54 (2006.01); A61B 17/00 (2006.01); A61B 17/32 (2006.01)
CPC A61B 17/545 (2013.01) [A61B 2017/00761 (2013.01); A61B 2017/320004 (2013.01); A61B 2217/005 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An applicator tip for a handpiece, the applicator tip configured to abrade a surface of a skin of a patient, the tip comprising:
a proximal end;
a distal end with a distal surface configured to contact skin tissue, the distal end comprising a first wall extending along an outer portion of the tip, and
an orifice extending from the proximal end to the distal end for passage of a treatment fluid to skin tissue;
at least one second wall extending from the first wall toward the orifice, wherein the first wall and the at least one second wall define at least one sector, the at least one sector being recessed relative to the first wall and the at least one second wall;
wherein the at least one sector comprises:
an opening to allow the treatment fluid to enter the at least one sector;
a barrier configured to direct the treatment fluid within the at least one sector; and
a vacuum port to remove waste from the at least one sector through the vacuum port;
wherein the barrier induces a swirling effect within the treatment fluid as at least part of a flow path passes from the orifice along the barrier to the vacuum port.