US 11,857,781 B2
Needle tip for application of current, hand piece, and skin treatment apparatus
Dong Hwan Kang, Incheon (KR); and Hye Jin Sun, Incheon (KR)
Assigned to JEISYS MEDICAL INC., Seoul (KR)
Filed by JEISYS MEDICAL INC., Seoul (KR)
Filed on Mar. 16, 2023, as Appl. No. 18/185,158.
Application 18/185,158 is a continuation of application No. 17/025,618, filed on Sep. 18, 2020, granted, now 11,633,592.
Application 17/025,618 is a continuation of application No. PCT/KR2020/009465, filed on Jul. 17, 2020.
Claims priority of application No. 10-2019-0086628 (KR), filed on Jul. 17, 2019; and application No. 10-2020-0088649 (KR), filed on Jul. 17, 2020.
Prior Publication US 2023/0218895 A1, Jul. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/04 (2006.01); A61N 1/32 (2006.01); A61N 1/05 (2006.01); A61N 1/06 (2006.01)
CPC A61N 1/328 (2013.01) [A61N 1/0476 (2013.01); A61N 1/0502 (2013.01); A61N 1/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A needle tip for application of current, the needle tip comprising:
a needle fixing part; and
a plurality of needles disposed on one surface of the needle fixing part,
wherein a tip end of each of the plurality of needles is configured to be a first insulated region,
wherein current is configured to be applied to the plurality of needles, and
wherein the first insulated region is coated with an insulating material.