US 12,420,478 B2
Imaging principle-based integrated color light 3D bioprinting system
Hongwei Ouyang, Hangzhou (CN); Renjie Liang, Hangzhou (CN); Yi Hong, Hangzhou (CN); Shufang Zhang, Hangzhou (CN); Oikai Li, Hangzhou (CN); Yiwei Zou, Hangzhou (CN); and Feifei Zhou, Hangzhou (CN)
Assigned to ZHEJIANG UNIVERSITY, Hangzhou (CN)
Appl. No. 17/616,041
Filed by ZHEJIANG UNIVERSITY, Hangzhou (CN)
PCT Filed Jul. 24, 2019, PCT No. PCT/CN2019/097471
§ 371(c)(1), (2) Date Dec. 2, 2021,
PCT Pub. No. WO2020/244037, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 201910482826.9 (CN), filed on Jun. 4, 2019; application No. 201910483433.X (CN), filed on Jun. 4, 2019; and application No. 201910483826.0 (CN), filed on Jun. 4, 2019.
Prior Publication US 2022/0324163 A1, Oct. 13, 2022
Int. Cl. B29C 64/135 (2017.01); B29C 64/188 (2017.01); B29C 64/255 (2017.01); B29C 64/286 (2017.01); B29C 64/336 (2017.01); B29C 64/393 (2017.01); B29K 105/24 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/10 (2020.01); B33Y 50/02 (2015.01)
CPC B29C 64/135 (2017.08) [B29C 64/188 (2017.08); B29C 64/255 (2017.08); B29C 64/286 (2017.08); B29C 64/336 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/10 (2020.01); B33Y 50/02 (2014.12); B29K 2105/24 (2013.01); B29K 2995/0056 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An imaging principle-based integrated color light 3D bioprinting system, comprising:
an optical imaging unit configured to allow a printed subject to form one or more optical images;
an optical path conversion unit configured to allow an imaging optical path of the one or more optical images to be projected into a bio-ink capable of being cured by light, so that the light allows the projected imaging optical path to cure the bio-ink by focus of the light;
a curing container, wherein the bio-ink is in a liquid form and carried in the curing container, the curing container is fixed, the optical path conversion unit is arranged to rotate relative to the curing container, the optical path conversion unit comprises a lens and a reflecting mirror, the lens converts the light from a projection unit into parallel light, and the reflecting mirror is configured to project the parallel light vertically into the curing container, wherein a movement of the optical path conversion unit includes a continuous peripheral movement of the optical path conversion unit around the curing container; and
a rotation angle detection device connected to the reflecting mirror, wherein the rotation angle detection device continuously monitors a horizontal rotation angle of the reflecting mirror in real time during rotation and enters an actual angle into a computer control system, such that the computer control system calculates and allows a projection angle to be compensated in advance to ensure that a light angle of the projected optical images does not change after passing the lens and the reflecting mirror.