US 11,883,089 B2
Controlled optical properties vitreous enamel composition for electrosurgical tool
Xiaoming Cheng, Keller, TX (US); and William X. Siopes, Jr., Tyngsborough, MA (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Appl. No. 16/327,215
Filed by Medtronic Advanced Energy LLC, Minneapolis, MN (US)
PCT Filed Nov. 14, 2017, PCT No. PCT/US2017/061626
§ 371(c)(1), (2) Date Feb. 21, 2019,
PCT Pub. No. WO2018/090046, PCT Pub. Date May 17, 2018.
Claims priority of provisional application 62/421,895, filed on Nov. 14, 2016.
Prior Publication US 2019/0185370 A1, Jun. 20, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); C03C 3/066 (2006.01); C03C 3/091 (2006.01); C03C 8/02 (2006.01); C03C 3/093 (2006.01); C03C 8/04 (2006.01); C03C 3/064 (2006.01); A61L 31/14 (2006.01); C03C 4/02 (2006.01); C03C 8/14 (2006.01); C03C 10/00 (2006.01); C03C 8/16 (2006.01); A61L 31/02 (2006.01); C03C 4/16 (2006.01); A61B 18/12 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/14 (2013.01) [A61B 18/1206 (2013.01); A61B 18/1402 (2013.01); A61B 18/148 (2013.01); A61L 31/026 (2013.01); A61L 31/14 (2013.01); C03C 3/064 (2013.01); C03C 3/066 (2013.01); C03C 3/091 (2013.01); C03C 3/093 (2013.01); C03C 4/02 (2013.01); C03C 4/16 (2013.01); C03C 8/02 (2013.01); C03C 8/04 (2013.01); C03C 8/14 (2013.01); C03C 8/16 (2013.01); C03C 10/00 (2013.01); C03C 10/0036 (2013.01); C03C 10/0054 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00107 (2013.01); A61B 2018/00125 (2013.01); A61B 2018/00148 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1253 (2013.01); A61B 2018/1412 (2013.01); A61B 2018/1415 (2013.01); C03C 2204/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An article comprising:
(a) an electrosurgical cutting blade comprising a metal electrode, and
(b) a visible vitreous enamel coating on at least a portion of the metal electrode,
wherein incident light striking the vitreous enamel coating is diffusely reflected or absorbed, and the vitreous enamel coating exhibits a 60° gloss value less than 100 gloss units as measured according to ASTM D523-14, Standard Test Method for Specular Gloss, wherein the vitreous enamel coating contains crystallites in an amount that cause the coating to absorb or scatter incident light.