US 12,434,428 B2
3D printing device, 3D printing method and 3D tubular objects obtained by said method
Antonio Jesús Guerra Sánchez, Salt Girona (ES); Arcadi Castanyer Caballe, Anglès Girona (ES); Josep Maria Serres Serres, Tortosa Tarragona (ES); Victor Llamas Martinez, Zamora Zamora (ES); Francisco Javier Planta Torralba, El Masnou Barcelona (ES); Miquel Domingo Espin, Barcelona Barcelona (ES); and Adrián Mora Pedregosa, Barcelona Barcelona (ES)
Assigned to FUNDACIÓ EURECAT, Barcelona (ES)
Appl. No. 18/034,529
Filed by FUNDACIÓ EURECAT, Barcelona (ES)
PCT Filed Oct. 29, 2021, PCT No. PCT/EP2021/080095
§ 371(c)(1), (2) Date Apr. 28, 2023,
PCT Pub. No. WO2022/090451, PCT Pub. Date May 5, 2022.
Claims priority of application No. 20382945 (EP), filed on Oct. 30, 2020.
Prior Publication US 2024/0326324 A1, Oct. 3, 2024
Int. Cl. B29C 33/56 (2006.01); A61F 2/90 (2013.01); A61L 31/02 (2006.01); A61L 31/10 (2006.01); B29C 33/58 (2006.01); B29C 33/60 (2006.01); B29C 33/68 (2006.01); B29C 64/124 (2017.01); B29C 64/232 (2017.01); B29C 64/236 (2017.01); B29C 64/241 (2017.01); B29C 64/245 (2017.01); B29C 64/255 (2017.01); B29C 64/264 (2017.01); B29C 64/268 (2017.01); B29C 64/273 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B33Y 80/00 (2015.01); B29C 33/00 (2006.01); B29K 105/00 (2006.01); B29L 23/00 (2006.01); B29L 31/00 (2006.01)
CPC B29C 64/124 (2017.08) [A61F 2/90 (2013.01); A61L 31/022 (2013.01); A61L 31/10 (2013.01); B29C 64/245 (2017.08); B29C 64/255 (2017.08); B29C 64/268 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 80/00 (2014.12); A61F 2240/002 (2013.01); A61F 2250/0018 (2013.01); B29C 2033/0005 (2013.01); B29K 2105/0067 (2013.01); B29K 2877/00 (2013.01); B29K 2905/12 (2013.01); B29K 2995/0056 (2013.01); B29L 2023/00 (2013.01); B29L 2031/7534 (2013.01)] 14 Claims
OG exemplary drawing
 
1. 3D printing device, for manufacturing at least one 3D tubular object according to a printing model;
said 3D printing device comprising:
a build platform having an external surface;
resin providing means, configured to provide, on said external surface of said build platform, a fluid resin which is polymerizable by electromagnetic radiation;
an electromagnetic radiation source, configured to emit, from a source output to said external surface of said build platform, a beam of an electromagnetic radiation suitable for polymerizing said fluid resin;
beam positioning means, configured to variably position an impinging point of said beam on said fluid resin provided on said external surface by at least:
a circumferential positioning in a circumferential direction around said longitudinal axis;
a longitudinal positioning along a longitudinal direction defined by said longitudinal axis; and
a distance positioning between said source output and said tubular shaped surface of said stem, thereby defining a beam length; and
control means, configured to control said beam positioning means and said electromagnetic radiation source according to said printing model to manufacture said 3D tubular object;
wherein said build platform comprises a stem having a longitudinal axis, said stem forming a tubular shaped surface around said longitudinal axis, so that said external surface of said build platform is comprised in said tubular shaped surface, and wherein said beam positioning means is configured to variably position said impinging point of said beam on different points of at least one part of said fluid resin provided on said tubular shaped surface.