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Methods for multi-material stereolithography

Patent ·
OSTI ID:1019104
 [1];  [1];  [2]
  1. El Paso, TX
  2. Redwood City, CA
+ Show Author Affiliations

Methods and systems of stereolithography for building cost-efficient and time-saving multi-material, multi-functional and multi-colored prototypes, models and devices configured for intermediate washing and curing/drying is disclosed including: laser(s), liquid and/or platform level sensing system(s), controllable optical system(s), moveable platform(s), elevator platform(s), recoating system(s) and at least one polymer retaining receptacle. Multiple polymer retaining receptacles may be arranged in a moveable apparatus, wherein each receptacle is adapted to actively/passively maintain a uniform, desired level of polymer by including a recoating device and a material fill/remove system. The platform is movably accessible to the polymer retaining receptacle(s), elevator mechanism(s) and washing and curing/drying area(s) which may be housed in a shielded enclosure(s). The elevator mechanism is configured to vertically traverse and rotate the platform, thus providing angled building, washing and curing/drying capabilities. A horizontal traversing mechanism may be included to facilitate manufacturing between components of SL cabinet(s) and/or alternative manufacturing technologies.

Research Organization:
University of Texas (Austin, TX)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC04-01AL67097
Assignee:
The Board of Regents of the University of Texas System (Austin, TX)
Patent Number(s):
7,959,847
Application Number:
US Patent Application 12/389,147
OSTI ID:
1019104
Country of Publication:
United States
Language:
English

References (10)

Use of stereolithography to manufacture critical-sized 3D biodegradable scaffolds for bone ingrowth journal January 2003
Manufacture of porous polymer nerve conduits by a novel low-pressure injection molding process journal February 2003
The development of bioartificial nerve grafts for peripheral-nerve regeneration journal April 1998
Hydrogels for biomedical applications journal January 2002
Materials for protein delivery in tissue engineering journal August 1998
Three-Dimensional Photopatterning of Hydrogels Containing Living Cells journal November 2002
A Polymer Foam Conduit Seeded with Schwann Cells Promotes Guided Peripheral Nerve Regeneration journal April 2000
Rapid Prototyping of Tissue-Engineering Constructs, Using Photopolymerizable Hydrogels and Stereolithography journal September 2004
Cure depth in photopolymerization: Experiments and theory journal December 2001
Congresses and meetings journal March 2009

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Related Subjects

36 MATERIALS SCIENCE