University of Southern California

Xiangjia Li

Yong Qin Chen

Huachao Mao

Yang Chai

Yuan Yuan

Yuxing Guo

Zoe Johnson

Methods, systems, and devices including a light guide tool for multi-axis additive manufacturing. The light guide tool includes a tubular light guide. The tubular light guide may be made from an optically transmissive material enclosed by one or more reflective side walls that are interposed between opposing optically transmissive ends. The light guide tool includes an optical coupling fixed to a first end of the optically transmissive ends of the tubular light guide. The optical coupling is configured to couple to a lens. The light guide tool includes a transparent non-stick coating. The transparent non-stick coating is adhered over a second end of the optically transmissive ends of the tubular light guide. The light guide tool includes a lens. The lens is coupled to the optical coupling and configured to emit a two-dimensional light pattern.

Multi-axis additive manufacturing system

This invention relates to a bone regeneration product comprising at least one stem cell, at least one scaffold, and at least one stem cell. The stem cells suitable for this invention may comprise stem cells suitable for a dense bone regeneration, stem cells suitable for a spongy bone regeneration, or a combination thereof. The bone regeneration product may further comprise a growth factor. This invention also relates to a bone regeneration method and treatment of any bone that has a critical size defect. This invention also relates to a scaffold. This invention further relates to a 3D printed scaffold comprising hydroxyapatite (HA) and tricalcium phosphate (TCP). This invention also relates to a scaffold comprising a polymer. The polymer of this invention may be prepared by using photocurable polymers and/or monomers. The scaffold of this invention may comprise a growth factor and a small molecule. The small molecule N may be a Smurf1 inhibitor.

Stem cells and devices for bone regeneration

Surface projection tool for multi-axis additive manufacturing

Methods, systems, and apparatus including medium-encoded computer program products for performing additive manufacturing (AM) using continuous resin flow based mask video projection stereolithography (MVP-SL) According to an aspect, a system for additive manufacturing of an object in three dimensions consisting of an X dimension, a Y dimension, and a Z dimension, the system comprising: a tank configured to contain a liquid resin; a first translation stage coupled with the tank, the first translation stage being configured to move the tank in the X dimension, the Y dimension, or both; a second translation stage coupled with a build platform, the second translation stage being configured to move the build platform in the Z dimension; and a computer control system to cause the second translation stage to elevate the build platform in the Z dimension simultaneously with causing the first translation stage to perform the sliding motion.

Mask video projection based stereolithography with continuous resin flow

Growing community of inventors

Los Angeles, CA, United States of America

Xiangjia Li