3D printing method and device for sterile contact lens

• Main Authors: HOLTZ ARIE OSCAR, KENIG, IDAN
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to a device for the sterile 3D printing of a contact lens, comprising: (a) at least 0.2 ml of a photopolymer resin which cures when transmitted through a light source; (b) a receptacle for containing a photopolymer resin, the receptacle having a transparent bottom for allowing an external light source to transmit light into the device to selectively cure a portion of the photopolymer resin as a cured polymer layer of the contact lens; (c) a removable top for covering the receptacle, the top having an aperture allowing fluid flow into and out of the device; (d) a liftable platform located within the device, the platform serving as a build plate for one or more cured layers of the contact lens; and (e) a conduit attached to the platform and accessible without access to the device to allow fluid flow into and out of the device. 本发明涉及一种用于对接触镜进行无菌3D打印的装置，包括：(a)至少0.2ml的光聚合物树脂，该光聚合物树脂在通过光源透射时固化；(b)接纳部，该接纳部用于对光聚合物树脂进行容纳，该接纳部具有透明底部，该透明底部用于允许外部光源将光透射到所述装置中，以选择性地使光聚合物树脂的一部分固化为所述接触镜的固化聚合物层；(c)可拆卸的顶部