US 12,029,859 B2
Handpiece tip for refrigerant injection of RF high frequency device for skin treatment
Sun-Woo Lee, Seoul (KR); Hyoun-Soon Seo, Gwangmyeong-si (KR); Jeong-Min Lee, Seoul (KR); and Kyu-Dong Lim, Seoul (KR)
Assigned to BISONMEDICAL CO., LTD., Seoul (KR)
Filed by BISONMEDICAL CO., LTD., Seoul (KR)
Filed on Jun. 15, 2023, as Appl. No. 18/335,411.
Application 18/335,411 is a continuation of application No. PCT/KR2022/017567, filed on Nov. 9, 2022.
Claims priority of application No. 10-2022-0026348 (KR), filed on Feb. 28, 2022.
Prior Publication US 2023/0321389 A1, Oct. 12, 2023
Int. Cl. A61M 19/00 (2006.01); A61B 18/14 (2006.01); A61M 37/00 (2006.01); A61B 18/00 (2006.01)
CPC A61M 19/00 (2013.01) [A61B 18/1477 (2013.01); A61M 37/0015 (2013.01); A61B 2018/00196 (2013.01); A61B 2018/0047 (2013.01); A61M 2037/0023 (2013.01); A61M 2037/0046 (2013.01); A61M 2205/054 (2013.01); A61M 2205/505 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A handpiece tip for refrigerant injection of an RF high frequency device for skin treatment, the handpiece tip comprising:
a body portion detachably attached to a head of a handpiece;
a skin adsorption assembly located at a lower end of the body portion, the skin adsorption assembly being configured to suction a skin under vacuum;
a refrigerant-for-local-anesthesia injector located at the lower end of the body portion, the refrigerant-for-local-anesthesia injector comprising an elbow shaped refrigerant injection nozzle configured to inject a refrigerant for local anesthesia toward the skin adsorption assembly in a plane direction;
a microneedle assembly located at an upper end of the skin adsorption assembly, the microneedle assembly being configured such that one or more microneedles are insertable into the skin, to create an RF electrode and to transmit an RF high frequency generated by an RF high frequency generator for skin treatment to the skin through the created RF electrode; and
a linear actuator assembly located at an upper end of the microneedle assembly, the linear actuator assembly being configured to reciprocate the microneedle assembly upwards and downwards in a straight line.