US 12,220,870 B2
Continuous digital light processing additive manufacturing of implants
H. David Dean, Shaker Heights, OH (US); Al Siblani, Dearborn Heights, MI (US); Eric J. Mott, Plainwell, MI (US); John P. Fisher, Kensington, MD (US); Martha O. Wang, Columbia, MO (US); and Antonios G. Mikos, Houston, TX (US)
Filed by H. David Dean, Shaker Heights, OH (US); Al Siblani, Dearborn Heights, MI (US); Eric J. Mott, Plainwell, MI (US); John P. Fisher, Kensington, MD (US); Martha O. Wang, Columbia, MO (US); and Antonios G. Mikos, Houston, TX (US)
Filed on Nov. 27, 2023, as Appl. No. 18/519,764.
Application 18/519,764 is a continuation of application No. 15/634,792, filed on Jun. 27, 2017, granted, now 11,865,785.
Application 15/634,792 is a continuation in part of application No. 14/648,446, granted, now 10,183,477, issued on Jan. 22, 2019, previously published as PCT/US2013/072623, filed on Dec. 2, 2013.
Application 15/634,792 is a continuation in part of application No. 13/817,612, granted, now 9,688,023, issued on Jun. 27, 2017, previously published as PCT/US2011/048620, filed on Aug. 22, 2011.
Claims priority of provisional application 61/731,843, filed on Nov. 30, 2012.
Claims priority of provisional application 61/491,194, filed on May 29, 2011.
Claims priority of provisional application 61/375,353, filed on Aug. 20, 2010.
Prior Publication US 2024/0100777 A1, Mar. 28, 2024
Int. Cl. C08F 2/50 (2006.01); A61L 27/50 (2006.01); A61L 27/56 (2006.01); A61L 27/60 (2006.01); B29C 64/386 (2017.01); B33Y 30/00 (2015.01); B33Y 50/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); G03F 7/004 (2006.01); G03F 7/029 (2006.01); G03F 7/105 (2006.01); G03F 7/20 (2006.01); B29C 64/135 (2017.01); G02B 26/08 (2006.01)
CPC B29C 64/386 (2017.08) [A61L 27/50 (2013.01); A61L 27/56 (2013.01); A61L 27/60 (2013.01); B33Y 30/00 (2014.12); B33Y 50/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); G03F 7/0047 (2013.01); G03F 7/029 (2013.01); G03F 7/105 (2013.01); G03F 7/2008 (2013.01); B29C 64/135 (2017.08); G02B 26/0833 (2013.01)] 14 Claims
 
1. A light polymerizable composition for use in the additive manufacturing of medical devices, comprising:
a first photo-initiator and a second photo-initiator, wherein the first photo-initiator activates to initiate curing of the composition when exposed to light of a first wavelength in an additive manufacturing device and the second photo-initiator limits the transmission of the light of the first wavelength that activates the first photo-initiator in the additive manufacturing device, and wherein the second photo-initiator is activated to further cure the composition when exposed to a light of a second wavelength different from the first wavelength by activating the second photo-initiator to produce free radicals at a higher rate when exposed to the light of the second wavelength than when exposed to the light of the first wavelength.