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1. (WO2018100580) METHOD AND SYSTEM FOR 3D PRINTING

Pub. No.:    WO/2018/100580    International Application No.:    PCT/IL2017/051305
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Fri Dec 01 00:59:59 CET 2017
IPC: B29C 64/106
C12N 5/00
Applicants: REGENESIS BIOMEDICAL LTD.
Inventors: EDRI,, Reuven
COHEN, Itai
Title: METHOD AND SYSTEM FOR 3D PRINTING
Abstract:
The present disclosure provides a process and system for generating a 3D scaffold. The process comprises (a) adding into a receptacle (106) a layer of a gelatinous thermosensitive hydrogel; (b) directing a focused heat onto portions of the layer of the gelatinous thermosensitive hydrogel to cause said portions of the thermosensitive hydrogel to solidify into a solid scaffold layer within the gelatinous thermosensitive hydrogel, said exposed portions constitute a layer within said 3D scaffold; and (c) repeating steps (a) and (b) to sequentially form said 3D scaffold. The system comprises a receptacle (106) for holding the gelatinous thermosensitive hydrogel; a focused heat source (116) for directing a focused heat onto portions of a layer of the thermosensitive hydrogel held within said receptacle (106) and for solidifying the portions into a solid scaffold layer within the gelatinous thermosensitive hydrogel; a dispenser (108) configured for dispensing an amount of said thermosensitive hydrogel within the receptacle (106) to form a layer of gelatinous thermosensitive hydrogel within said receptacle; and a control unit (130) for controlling addition, layer by layer, of said thermosensitive hydrogel within the receptacle (106) and, for controlling exposure of said focused heat onto said portions of the thermosensitive hydrogel, to cause said thermosensitive gelatinous hydrogel to solidify into a solid scaffold layer within the gelatinous thermosensitive hydrogel.