US 12,239,495 B2
Surgical skin marker
Katherine Lynn-Long Lijoi, Arlington, VA (US); and Steven Davison, Washington, DC (US)
Assigned to DaVinci Plastic Surgery, PC, Washington, DC (US)
Filed by DaVinci Plastic Surgery, PC, Washington, DC (US)
Filed on Jun. 30, 2023, as Appl. No. 18/217,146.
Prior Publication US 2025/0000606 A1, Jan. 2, 2025
Int. Cl. A61B 90/00 (2016.01); B43K 8/02 (2006.01); B43K 8/03 (2006.01); B43K 23/08 (2006.01)
CPC A61B 90/39 (2016.02) [B43K 8/024 (2013.01); B43K 8/03 (2013.01); B43K 23/08 (2013.01); A61B 2090/395 (2016.02)] 8 Claims
OG exemplary drawing
 
1. A method of pre-operative surgical planning of a subject comprising:
removing a reusable, surgical felt tip marker from a sterile packaging,
uncapping the marker,
advancing the felt ink reservoir,
using the skin marker to draw on a subject's skin to outline a surgical plan,
when the marker no longer produces ink, twisting the advancing rotary on the marker's end opposite the ink tip, advancing the felt ink reservoir about ½ cm so that approximately 1 cm of felt ink reservoir are exposed past the skin marker's outer casing, cutting the end of the felt ink reservoir off leaving about ½ cm of ink-saturated felt ink reservoir exposed, to continue to utilized the skin marker for general surgical planning, and repeating as needed,
wherein the reusable, surgical felt tip marker comprises:
(i) an external portion comprising:
(a) an outer casing;
(b) a felt ink reservoir comprising one or more indicator notches; and
(c) an advancing rotary; and
(ii) an internal portion comprising:
(a) an internal screw;
(b) an advancement track; and
(c) a felt ink reservoir advancing base.