# US 12,594,719 B2 · High density mesh for inverted 3D printing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,594,719 B2 - Document ID: US12594719B2 - Status: Granted - Kind: B2 - Application number: 18/108,904 - Filed: 2023-02-13 - Published: 2023-08-17 - Granted: 2026-04-07 - Earliest claimed: 2022-02-14 - Assignees: Lung Biotechnology PBC - Applicants: Lung Biotechnology PBC - Inventors: Mohammadali Safavieh; Akarsh Sivaprasad; Mora Melican; Masoud Modaresifar; Datta Saravana Kalyan Kumar Vydiam; Barbara Nsiah; Derek Morris; Luis Alvarez - Web page: https://patentgrep.com/patent/US12594719B2 ## CPC - B29C 64/245: Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) - B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor - C12M 33/00: {Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus (chemical or physical laboratory apparatus in general B01L, devices for taking cell samples A61B10/0045, withdrawing or distributing predetermined quantities of fluid B01L99/00)} - B29C 64/124: using layers of liquid which are selectively solidified - B29L 2031/7532: {Artificial members, protheses} - B33Y 10/00: Processes of additive manufacturing - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - C12M: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; {APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS} - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract A platform form an apparatus for printing a 3D model comprises a base and a print layer. The base has a first side where the first side of the base has a first surface roughness thereon. The print layer is coupled first side of the base and includes a surface. The surface of the print layer is distal from the base and has a second surface roughness which is greater than the first surface roughness so as to promote adhesion of the 3D model being printed on the platform. ## Claims ### Claim 1 A method of forming a 3D printed model comprising: providing an apparatus comprising: a vat with a photocurable ink, wherein a bottom of the vat comprises an oxygen permeable membrane; and a printing platform comprising: a base, and a mesh at a first side of the base, wherein the mesh is a mesh comprising hooks or loops for coupling the 3D printed model to the base, the mesh is a terminal element of the printing platform and an adhesion strength of the photocurable ink to the mesh is greater than an adhesion strength of the photocurable ink to the oxygen permeable membrane; and displacing the printing platform with the mesh contacting the photocurable ink from the oxygen permeable membrane to form a 3D model from the photocurable ink. ### Claim 2 (depends on 1) The method of claim 1, wherein the base is formed from a metal. ### Claim 3 (depends on 1) The method of claim 1, wherein the platform further comprises a mounting arm extending from a second side of the base that is opposite the first side. ### Claim 4 (depends on 1) The method of claim 1, wherein the platform further comprises an adhesion layer interposed between the base and the mesh, the adhesion layer couples the mesh to the base. ### Claim 5 (depends on 1) The method of claim 1, wherein the first side of the base has a surface roughness to promote attachment of the mesh to the base. ### Claim 6 (depends on 1) The method of claim 1, wherein the 3D model is a bioscaffold. ### Claim 7 (depends on 2) The method of claim 2, wherein the platform further comprises a mounting arm extending from a second side of the base that is opposite the first side. ### Claim 8 (depends on 2) The method of claim 2, wherein the wherein the platform further comprises an adhesion layer interposed between the base and the mesh, the adhesion layer couples the mesh to the base. ### Claim 9 (depends on 3) The method of claim 3, wherein the platform further comprises an adhesion layer interposed between the base and the mesh, the adhesion layer couples the mesh to the base. ### Claim 10 (depends on 2) The method of claim 2, wherein the first side of the base has a surface roughness to promote attachment of the mesh to the base. ### Claim 11 (depends on 3) The method of claim 3, wherein the first side of the base has a surface roughness to promote attachment of the mesh to the base. ### Claim 12 (depends on 4) The method of claim 4, wherein the first side of the base has a surface roughness to promote attachment of the mesh to the base. ### Claim 13 (depends on 2) The method of claim 2, wherein the 3D model is a bioscaffold. ### Claim 14 (depends on 3) The method of claim 3, wherein the 3D model is a bioscaffold. ### Claim 15 (depends on 4) The method of claim 4, wherein the 3D model is a bioscaffold. ### Claim 16 (depends on 5) The method of claim 5, wherein the 3D model is a bioscaffold.