Plastic and nonmetallic article shaping or treating: processes – Stereolithographic shaping from liquid precursor
Patent
1994-02-23
1996-05-21
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Stereolithographic shaping from liquid precursor
156 622, 1562728, 264 41, 264113, 264255, 264308, 264497, B29C 3508, B29C 4102, B29C 6700, B29C 6720
Patent
active
055186807
ABSTRACT:
Solid free-form techniques for making medical devices for implantation and growth of cells from polymers or polymer/inorganic composites using computer aided design are described. Examples of SFF methods include stereo-lithography (SLA), selective laser sintering (SLS), ballistic particle manufacturing (BPM), fusion deposition modeling (FDM), and three dimensional printing (3DP). The devices can incorporate inorganic particles to improve the strength of the walls forming the pores within the matrix and to provide a source of mineral for the regenerating tissue. The devices can contain tissue adhesion peptides, or can be coated with materials which reduce tissue adhesion. The macrostructure and porosity of the device can be manipulated by controlling printing parameters. Most importantly, these features can be designed and tailored using computer assisted design (CAD) for individual patients to optimize therapy.
REFERENCES:
patent: 4060081 (1975-11-01), Yannas et al.
patent: 4485097 (1984-11-01), Bell
patent: 4520821 (1985-06-01), Schmidt
patent: 4609551 (1986-09-01), Caplan
patent: 4620327 (1986-11-01), Caplan
patent: 5197985 (1993-03-01), Caplan
patent: 5204055 (1993-04-01), Sachs et al.
patent: 5226914 (1993-07-01), Caplan
Klebe, Robert J., "Cytoscribing: A Method for Micropositioning Cells and the Construction of Two- and Three-Dimensional Synthetic Tissues," Exp. Cell Res. 179:362-373 (1988).
Boeree, N. R., et al., "Development of a Degradable Composite for Orthopedic Use: Mechanical Evaluation of an Hydroxyapatite-Polyhydroxygutyrate Composite Material," BioMaterials, 14 793-796 (1993).
Martin, R. B., et al., "Bone Ingrowth and Mechanical Properties of Coralline Hydroxyapatite One Year After Implantation," BioMaterials, 14, 341-348 (1993).
Sachs, et al., "CAD-Casting: Direct Fabrication of Ceramic Shells and Cores by Three Dimensional Printing," Manufacturing Review, 5(2), 117-126 (1992).
Vacanti, et al., "Selective Cell Transplantation Using Bioabsorbable Artificial Polymers as Matrices," Arch. Surg., 123, 545-549 (1988).
Cima Linda G.
Cima Michael J.
Massachusetts Institute of Technology
Tentoni Leo B.
LandOfFree
Tissue regeneration matrices by solid free form fabrication tech does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tissue regeneration matrices by solid free form fabrication tech, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tissue regeneration matrices by solid free form fabrication tech will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2035674