公开(公告)号：US20240359407A1

公开(公告)日：2024-10-31

申请号：US18643669

申请日：2024-04-23

申请人： Northwestern University

发明人： Pengpeng ZHANG ,  Raymond S. FANG ,  Cheng SUN ,  Hao F. ZHANG

IPC分类号： B29C64/386 ,  B29C64/124 ,  B29C64/20 ,  B29D11/00 ,  B29L11/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y80/00 ,  G02C7/02 ,  G02C7/04

CPC分类号： B29C64/386 ,  B29C64/124 ,  B29C64/20 ,  B29D11/00038 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y80/00 ,  G02C7/027 ,  G02C7/04 ,  B29L2011/0041

摘要： Provided herein are systems and methods for additive manufacture of a customized ocular contact lens for a subject in a fast and convenient manner. In various aspects disclosed herein, methods disclosed herein provide for the imaging of the outer surface of a subject's cornea, designing a customized ocular contact lens based on the data from the imaging of the cornea, including determining anterior and posterior surfaces of the ocular contact lens, manufacturing the ocular contact lens using additive manufacturing, verifying the fit of the customized ocular contact lens on the subject's cornea, and verifying the optical power of the customized ocular contact lens. These features allow for the fast and convenient production of an ocular contact lens customized to a subject's cornea and manufactured to a specified optical power.

公开(公告)号：US12128628B2

公开(公告)日：2024-10-29

申请号：US17554769

申请日：2021-12-17

申请人： FORCAST RESEARCH & DEVELOPMENT CORP.

发明人： Si Wan Li ,  Gabriel Rodrigo Castanon Delgado

IPC分类号： B29C64/255 ,  B29C64/124 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00

CPC分类号： B29C64/386 ,  B29C64/124 ,  B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00

摘要： An additive manufacturing device includes a container for containing feed stock material and having an optically transparent bottom wall. The additive manufacturing device further includes a radiation source configured to emit radiation in an optical path incident on the bottom wall and a sensor positioned in the optical path of the radiation above the bottom wall. The sensor is configured to sense a temperature of feedstock material at a reaction interface as the radiation polymerizes at least a portion of the feedstock material. The sensor is constructed to meet a transparency threshold and a flexibility threshold.

公开(公告)号：US12128608B2

公开(公告)日：2024-10-29

申请号：US17543369

申请日：2021-12-06

申请人： Stratasys, Inc.

发明人： J. Samuel Batchelder

IPC分类号： B29C64/188 ,  B29C64/124 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00

CPC分类号： B29C64/124 ,  B29C64/188 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00

摘要： A method for printing a 3D part in a layer-wise manner includes providing a pool of polymerizable liquid in a vessel over a build window and positioning a downward-facing build platform in the pool, thereby defining a build region above the build window. The method includes selectively curing a volume of polymerizable liquid in the build region by imparting electromagnetic radiation through the build window to form a printed layer of the part adhered to the build platform and actively cooling the build window to remove energy imparted by the electromagnetic radiation and the polymerization reaction of the polymerizable liquid such that the printed layer is between about 1° C. and about 30° C. below an average part temperature prior to raising the print layer and printing the next layer.

公开(公告)号：US20240352174A1

公开(公告)日：2024-10-24

申请号：US18604216

申请日：2024-03-13

申请人： Align Technology, Inc.

发明人： Umesh Upendra Choudhary ,  Raymond Bao Thai

IPC分类号： C08F291/00 ,  A61C7/08 ,  B29C64/124 ,  B29K96/02 ,  B29L31/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08F2/50 ,  C08J5/18 ,  C08K5/23

CPC分类号： C08F291/00 ,  A61C7/08 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08F2/50 ,  C08J5/18 ,  C08K5/23 ,  B29K2096/02 ,  B29L2031/753 ,  C08J2351/00

摘要： The present disclosure provides cross-linker compounds that can produce desirable polymeric materials, polymer compositions, and/or photo-curable resins. Further provided herein are methods of producing cross-linker compounds, compositions, resins, devices, and polymeric materials. Also provided herein are methods of using cross-linker compounds, resins, and polymeric materials for the fabrication (e.g., via 3D printing) of medical devices, such as orthodontic appliances.

公开(公告)号：US20240343941A1

公开(公告)日：2024-10-17

申请号：US18294185

申请日：2022-07-27

申请人： BASF SE

发明人： Rui DING ,  Zhi Zhong CAI ,  Yue WANG

IPC分类号： C09D175/14 ,  B29C64/124 ,  B29C71/02 ,  B29C71/04 ,  B29K105/00 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  C08G18/04 ,  C08G18/32 ,  C08G18/50 ,  C08G18/67 ,  C08G18/79

CPC分类号： C09D175/14 ,  B33Y70/00 ,  C08G18/04 ,  C08G18/3206 ,  C08G18/324 ,  C08G18/3243 ,  C08G18/325 ,  C08G18/5027 ,  C08G18/672 ,  C08G18/798 ,  B29C64/124 ,  B29C71/02 ,  B29C71/04 ,  B29K2105/0002 ,  B29K2105/0094 ,  B29K2995/0077 ,  B29K2995/0089 ,  B33Y10/00 ,  B33Y40/20

摘要： This disclosure relates to a dual-cure resin composition comprising (a) at least one photo-polymerizable compound; (b) at least one uretdione-containing compound having an average uretdione ring functionality of greater than 1; (c) at least one compound containing at least one isocyanate-reactive group; and (d) at least one photoinitiator; to a process of forming 3D objects by using the composition, to use of the composition for forming 3D objects and to 3D objects formed by using the composition.

公开(公告)号：US12115719B2

公开(公告)日：2024-10-15

申请号：US16942330

申请日：2020-07-29

申请人： ALIGN TECHNOLOGY, INC.

发明人： Siobhan O'Leary ,  Peter Webber ,  Michael Christopher Cole

IPC分类号： B29C64/124 ,  A61C7/08 ,  A61C7/14 ,  A61C13/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00 ,  A61C7/00

CPC分类号： B29C64/124 ,  A61C7/08 ,  A61C7/146 ,  A61C13/0019 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00 ,  A61C7/002

摘要： Strategies that reduce shrinkage and ultimately warping of parts that are directly fabricated from photopolymer resins. This increases the accuracy of directly fabricated parts, which is essential for patient specific applications. Implementing these strategies can reduce the need for directly fabricated parts to have supporting structures, which can reduce pre-processing and post-processing steps and facilitate an easier route for production level scale of additive manufacturing.

公开(公告)号：US12103225B2

公开(公告)日：2024-10-01

申请号：US17500504

申请日：2021-10-13

申请人： Klaus Stadlmann

发明人： Klaus Stadlmann

IPC分类号： B29C64/124 ,  B29C64/245 ,  B29C64/259 ,  B29C64/321 ,  B29C64/379 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/20

CPC分类号： B29C64/124 ,  B29C64/245 ,  B29C64/259 ,  B29C64/321 ,  B29C64/379 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/20 ,  B33Y10/00

摘要： In a stereolithography device (1), a three-dimensional object (2) is generated by curing a photosensitive substance (3) under the action of specific radiation, wherein the device includes a support unit, a radiation source (8) for generating the radiation, and a cartridge unit (10) that can be positioned on the support unit and removed therefrom. The cartridge unit (10) includes an interior space (140) surrounded by a casing (14), wherein the casing of the cartridge unit is deformable and at least partially transparent to the radiation triggering the curing process. The interior space (140) surrounded by the casing has a volume including a receiving space (4) in which the photosensitive substance (3) is present for at least a duration of an irradiation and curing process and accessible to the radiation.

公开(公告)号：US20240308140A1

公开(公告)日：2024-09-19

申请号：US18232414

申请日：2023-08-10

申请人： SHENZHEN ANYCUBIC TECHNOLOGY CO., LTD.

发明人： Xinqiao DENG

IPC分类号： B29C64/393 ,  B29C64/124 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC分类号： B29C64/393 ,  B29C64/124 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

摘要： A remaining printing material measurement method, and an additive manufacturing apparatus are provided. The remaining printing material measurement method is applied to the additive manufacturing apparatus. The measurement method allows for determining whether the remaining printing material in a resin vat is enough to complete the printing of a model to be printed before printing or during printing, which is beneficial to promote a user to add the printing material when the printing material in the resin vat is insufficient, so as to avoid printing delay or interruption caused by not adding printing materials in time and greatly increase the operation efficiency.

公开(公告)号：US12083736B2

公开(公告)日：2024-09-10

申请号：US17971168

申请日：2022-10-21

申请人： Lung Biotechnology PBC

发明人： Daniel Backman ,  Mohammadali Safavieh ,  Aman Kaur ,  Derek Morris ,  Luis M. Alvarez

IPC分类号： B29C64/124 ,  B29K105/00 ,  B33Y10/00 ,  B33Y70/00

CPC分类号： B29C64/124 ,  B33Y10/00 ,  B29K2105/0061 ,  B29K2105/0085 ,  B29K2995/0093 ,  B33Y70/00

摘要： A method of printing a hydrogel scaffold is provided which includes providing a container containing an ink and a liquid that is immiscible with the ink; applying light from a light source to the ink to form a portion of the hydrogel scaffold; and applying light from a light source one or more additional times to produce one or more additional portions of the hydrogel scaffold.

公开(公告)号：US20240286353A1

公开(公告)日：2024-08-29

申请号：US18594688

申请日：2024-03-04

申请人： Formlabs, Inc.

发明人： Craig Broady ,  Gurshan Deol ,  Gagandeep Singh

IPC分类号： B29C64/245 ,  B29C64/124 ,  B29C64/135 ,  B29C64/153 ,  B33Y30/00 ,  B33Y40/20

CPC分类号： B29C64/245 ,  B29C64/135 ,  B33Y30/00 ,  B33Y40/20 ,  B29C64/124 ,  B29C64/153

摘要： According to some aspects, an additive fabrication device and a build platform suitable for use within an additive fabrication device are provided. The build platform may include a build surface on which material may be formed by the additive fabrication device when the build platform is installed within the additive fabrication device. According to some embodiments, the build platform may include a flexible build layer and at least one removal mechanism configured to be actuated to apply a force to the flexible build layer. Such actuation may cause the flexible build layer to deform, thereby enabling separation of material adhered to the build surface from the build platform. According to some embodiments, the build platform may comprise a restorative mechanism that acts to return the flexible build layer to a flat state so that subsequent additive fabrication may form material on a flat build surface.