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181
results.
Updated on
23/12/2025 [07:09:00]
Results 150 to 175 of 181
Absstract of: CN121015460A
本发明属于齿科陶瓷材料技术领域，具体涉及适用于DLP 3D打印技术的齿科修复用复合材料及其制备方法。所述的齿科修复用复合材料包括以下重量份数的原料：聚硅氮烷陶瓷先驱体粘结剂：30‑50份；氧化锆：60‑90份；光引发剂：3‑7份；热引发剂：2‑5份；分散剂：2‑6份；流变剂：1‑5份；硅烷偶联剂：3‑8份；烧结助剂：5‑10份；采用聚硅氮烷先驱体材料，通过光固化精确成型，再经热处理后可控转化为无机陶瓷，兼具有机物的加工性与陶瓷的高耐温、高稳定性，克服了传统有机粘结剂在高温下易分解、收缩大、强度不足的问题，为高性能陶瓷器件制备提供了新材料基础。
Absstract of: CN121018947A
本申请提供了一种耳模制造方法、装置、系统、设备及存储介质，涉及生物医疗技术领域，本申请预先对目标对象的耳郭取模得到耳郭反向模型，该耳郭反向模型真实表达了耳郭的所有曲面信息，通过扫描该耳郭反向模型得到三维点云数据，并基于三维点云数据构建得到的数字化耳郭正向模型，消除了耳部隐蔽曲面轮廓对点云数据采集的影响，有效实现了对耳郭完整曲面的数字化提取，提高了数字化构建实现耳模的精度，从而保证了数字化耳模与目标人员的耳部的契合度，并依据预设和提取耳郭的穴点信息，进行开孔，然后进行数字化耳模的实物打印，进行适合佩戴，方便进行个性化移动化诊治调理，实现了耳模数字化构建和可移动个性诊治调理的创新全流程。
Absstract of: WO2024188676A1
The invention relates to an apparatus for producing three-dimensional screen-printed workpieces, in particular a 3D screen printing installation, said apparatus comprising: a printing device for the layer-by-layer production of at least one screen-printed workpiece in a plurality of printing operations; and a transport device for the automated transport of at least one screen-printed workpiece and/or a workpiece carrier to and/or from the printing device, the transport device having a support portion for at least interlockingly receiving a workpiece carrier.
Absstract of: WO2024188675A1
The invention relates to an apparatus for producing three-dimensional screen-printed workpieces, in particular a 3D screen printing installation, said apparatus comprising: a printing device for the layer-by-layer production of at least one screen-printed workpiece in a plurality of printing operations; and a drying device which is designed to dry at least one screen-printed workpiece and to simultaneously cool a workpiece carrier that carries the screen-printed workpiece to be dried.
Absstract of: CN120187382A
The present invention relates to a curable composition for use in a method of treating a dental condition in the oral cavity of a patient, the curable composition comprising a radiation curable component; a photoinitiator that exhibits absorption in the ultraviolet light region and exhibits absorption in the visible light region, the absorption in the ultraviolet light region being stronger than the absorption in the visible light region; optionally, a filler; optionally, an additive; the method comprises the steps of: layer-by-layer manufacturing of a dental or orthodontic article using radiation having a wavelength in the region of the ultraviolet light; attaching the dental or orthodontic article to a surface of hard dental tissue or dental material; radiation having a wavelength in the visible light region is applied to the dental or orthodontic article.
Absstract of: CN121018950A
本发明涉及复合3D环保打印材料的人体肋骨骼替代物制造方法、设备、存储介质，包括：步骤S100.基于患者受伤处的肋骨扫描，输出肋骨数据；步骤S200.在医学图像处理软件中基于所述肋骨数据生成肋骨三维模型；步骤S300.通过三维建模软件对肋骨三维模型进行优化，所述优化至少包括模型预处理、切片参数调整、打印路径规划和填充策略；步骤S400.将聚乳酸与连续纤维通过熔融堆叠形成复合材料，复合材料作为人体肋骨替代物的3D打印材料；步骤S500.采用3D打印技术对所述肋骨三维模型进行打印；步骤S600:对打印的人体肋骨骼替代物进行力学实验测试。
Absstract of: US2025359967A1
Intraoral appliances and associated systems are provided. In some embodiments, an intraoral appliance includes a 3D printed body composed of a plurality of additively manufactured layers. The 3D printed body can include a first cellular structure located at one or more first areas of the intraoral appliance, the first cellular structure corresponding to a first stiffness, and a second cellular structure located at one or more remainder areas of the intraoral appliance, the second cellular structure corresponding to a second stiffness less than the first stiffness.
Absstract of: US2025360081A1
Provided herein are drug dosage forms designed to provide a desired retention in an individual based on geometric differences between a pre-administration and post-administration state of the dosage form. In certain aspects, provided are oral drug dosage forms comprising a swellable and expandable material configured, upon swelling or expanding, to drive expansion of the overall size of the oral drug dosage forms such that the oral drug dosage forms are retained in the stomach for a desired period of time. In certain other aspects, provided is directed to components useful for the oral drug dosage forms taught herein. In certain other aspects, provided is directed to methods of designing, methods of making, such as involving three-dimensional (3D) printing, injection molding, ultrasonic welding, or any combination thereof, commercial batches, and methods of delivering a drug to an individual comprising administering an oral drug dosage form taught herein.
Absstract of: US2025361406A1
The invention relates to a radiation-curing composition for the manufacture of dental components using the DLP process or SLA process, comprising, based on the total mass of the radiation-curing composition (i) one or more radically polymerizable monomers in a combined mass fraction of 60% or more, (ii) one or more hexaarylbiimidazole compounds in a combined mass fraction in the range of 0.1 to 5%, and (iii) one or more mercaptotetrazole compounds in a combined mass fraction in the range of 0.1 to 5%, wherein the combined mass fraction of fillers in the radiation-curing composition is less than 30%.
Absstract of: US2025361358A1
The present invention provides novel polymeric materials for biomedical applications, derived from plant-derived phenolic diols, primarily zingerol. Two material classes are disclosed. First, biodegradable polyesters using said diols, are synthesized via solvent/catalyst-free melt polycondensation. These exhibit tunable mechanical properties, shape memory, antibacterial activity, and biocompatibility. Second, photopolymerizable zingerol derivative monomers or crosslinkers, are formulated into resins for 3D printing. Resulting 3D objects offer tailored mechanics, biodegradability, excellent shape memory, cytocompatibility, hemocompatibility, and potent antioxidant, antibacterial, and anti-biofilm functions. Methods for preparing both polymer types and their derivatives, alongside uses in tissue engineering and medical implants, are described.
Absstract of: WO2025245459A1
A method for preparing a tissue, comprising depositing a cell bioink in a biocompatible matrix to form a printed cell structure in the biocompatible matrix; and allowing the printed cell structure to incubate in the biocompatible matrix for a time sufficient for at least a portion of cells of the printed cell structure to develop into a contiguous tissue before removing the printed cell structure from the biocompatible matrix; wherein the biocompatible matrix has a yield stress greater than a yield stress of the cell bioink, prior to depositing the cell bioink in the biocompatible matrix, and the biocompatible matrix optionally comprises a rheological modifier.
Absstract of: WO2025242824A1
The present invention relates to a method for manufacturing a covering part for a device intended for bone regeneration, in order to cover a bone defect in a patient, which method comprises the steps of a) recording a set of data representative of the stated bone defect in three dimensions; b) designing the covering part using this set of data, which covering part has a wall opposite the bone defect and a wall facing the bone defect, and which covering part is able to be fastened in place on a bone by at least one fastening means; and c) manufacturing the covering part, wherein the covering part is made from a resorbable polymer by 3D printing, has microperforations, and has a thickness of between 0.8 and 1.5 mm.
Absstract of: AU2024273563A1
The present disclosure provides a wearable article including a 3D printed base, 3D printed antenna ground plane structure and a 3D printed a dipole antenna structure, wherein the base, ground plane structure and dipole antenna structure comprises a 3D printed mesh which is formed of a stretchable elastomeric polymer material. The wearable article also includes signal transmission and power harvesting circuitry comprising duplexing circuit to transmit and receive data and to receive wireless power from a power transmission unit.
Absstract of: US2025359966A1
A manufacturing system and method obtain a first digital model of teeth, create a modified digital model of the teeth by adding a locator feature to the first digital model of the teeth, and create a physical model of the teeth based on the modified digital model. A portion of the physical model is created based on the locator feature. A dental aligner device is formed on the physical model of the teeth with extraneous material of the dental aligner device extending away from the dental aligner device. The extraneous material is removed from the dental aligner device from the physical model of the teeth. The forming of the dental aligner device and/or the removing of the extraneous material is performed by positioning the physical model using the locator feature.
Absstract of: US2025360010A1
A method of extracting an implant from a vessel includes inserting an extraction device into the vessel. The extraction device includes a hollow body having a cylindrical portion and a bellowed portion. An inner diameter of the bellowed portion increases toward an end of the hollow body. The method also includes sliding the extraction device over an outer surface of the implant such that the hollow body slides between a vessel wall and the implant to move the implant from a deployed position to a non-deployed position within the hollow body. The method can also include removing the extraction device and the implant from the vessel.
Absstract of: US2025361480A1
A method for generating reinforced engineered cellularized construct, which utilizes a biocompatible small-molecule reinforcing agent that do not affect the viability of the cells, a reinforced engineered cellularized construct obtained thereby and used the engineered cellularized construct are provided.
Absstract of: US2025360004A1
A method of designing and manufacturing an elastic circumferential rim of a prosthetic or orthotic device includes a step of creating a basic structure of the elastic circumferential rim based on the type of the prosthetic or orthotic device. Requirements are determined for stiffness of the elastic circumferential rim in the individual areas along the circumference of the elastic circumferential rim. A structural model of the elastic circumferential rim is created based on the requirements for stiffness of the elastic circumferential rim in the individual areas along the circumference of the elastic circumferential rim and the basic structure of the elastic circumferential rim. The elastic circumferential rim is manufactured based on the structural model of the elastic circumferential rim.
Absstract of: US2025362752A1
A wrist-wearable device is described herein. The wrist wearable device includes a first skin-contact portion. The first skin contact portion (i) is coupled with a first set of biopotential-signal sensors for detecting first biopotential signals that are provided to a first flexible printed circuit board, and (ii) is coupled with an elastic material that extends beyond an end of the first skin-contact portion. The wrist wearable device includes a second skin-contact portion that is separated from the first skin-contact portion by a capsule structure. The second skin-contact portion is (ii) coupled with a second set of biopotential-signal sensors for detecting biopotential signals that are provided to a second flexible printed circuit board, and (ii) is coupled with a receiving loop for receiving the elastic material to affix the band to a body part of a wearer of the wrist-wearable device.
Absstract of: EP4652981A1
Die Erfindung betrifft ein eine strahlungshärtende Zusammensetzung für die Herstellung dentaler Bauteile im DLP-Verfahren oder SLA-Verfahren, umfassend bezogen auf die Gesamtmasse der strahlungshärtenden Zusammensetzung: i) ein oder mehrere radikalisch polymerisierbare Monomere in einem kombinierten Massenanteil von 60 % oder mehr, ii) eine oder mehrere Hexaarylbiimidazol-Verbindungen in einem kombinierten Massenanteil im Bereich von 0,1 bis 5 %, und iii) eine oder mehrere Mercaptotetrazol-Verbindungen in einem kombinierten Massenanteil im Bereich von 0,1 bis 5 %, wobei der kombinierte Massenanteil an Füllstoffen in der strahlungshärtenden Zusammensetzung weniger als 30 % beträgt.
Absstract of: EP4653024A1
The invention provides a composition for low-temperature 3D printing of tissue implants, which contains:- calcium phosphate powder,- chitosan particles,- aqueous solution of block copolymer (D,L-polylactide-co-polyglycolide)-b-poly(ethyleneglycol)-b-(D,L-polylactide-co-polyglycolide) (PLGA-PEG-PLGA).A kit and a method for preparing the composition are provided, as well as a method for printing tissue implants using the kit.
Absstract of: EP4652960A1
A method for generating a digital model of an orthodontic appliance, which comprises: determining overall size information and alveolar size information for a digital model of an orthodontic appliance according to information related to different dentition areas of a target oral cavity digital model; and generating the digital model of the orthodontic appliance according to the overall size information and the alveolar size information. Further provided are an apparatus for generating a digital model of an orthodontic appliance using the method for generating a digital model of an orthodontic appliance, as well as an orthodontic appliance manufactured using the method for generating a digital model of an orthodontic appliance. The method for generating a digital model of an orthodontic appliance can improve production efficiency and product precision of orthodontic appliances.
Absstract of: EP4653192A2
A device made from a hydrogel matrix is provided. The hydrogel matrix includes a photoabsorber with a void architecture in the matrix, having a first vessel architecture and a second vessel architecture that are each tubular and branching, wherein the first and second vessel architectures are fluidically independent from each other. A pre-polymerization solution for forming the device, and methods of fabricating such devices are described. A method of fabricating a 3D hydrogel construct is provided. The method includes using a computer-implemented process to create a 3D model of the construct based on a tessellation of polyhedra having a number of faces connected by edges and vertices, generate a first vascular component of the model, generate a second vascular component of the model, and combine the first and second vascular components of the model.
Absstract of: WO2024188678A1
The invention relates to a workpiece carrier, in particular for producing three-dimensional screen-printed workpieces, said workpiece carrier comprising: at least one printing bed which has a printing surface to be printed; and a support structure which supports the printing bed and is formed separately from the printing bed, it being possible to optically detect the position and/or orientation of the printing bed starting from a side of the support structure facing away from the printing bed.
Absstract of: CN121005881A
本发明公开了一种牙套热压膜的制备方法。该热压膜先对苯二甲酸通过单氯甲基化进行季铵化反应，再与改性乙二醇单体单体进行共聚反应形成改性后的聚酯，最后与季戊四醇反应得到星形交联的聚对苯二甲酸乙二醇酯；得到所需材料后，通过仪器获取口内数字模型并3D打印牙颌模型；采用一体式热压成型工艺将产物热压成型后，裁剪打磨抛光，得到牙套热压膜。本发明力学性能与弹性优势并存，拉伸强度30‑40MPa，断裂伸长率≧8%，玻璃化温度在60℃到70℃之间，结构稳定且抗菌效果好，对常见细菌杀灭率超96%。采用3D打印与热压成型结合，提升生产效率与精度，产品透明美观、方便摘戴，兼具化学稳定性，适合规模化生产。
Nº publicación: CN121013787A 25/11/2025
Applicant:
阿莱恩技术有限公司
Absstract of: US2024100775A1
Systems, methods, and devices for additive manufacturing are provided. In some embodiments, a method includes: coupling a plurality of build platforms to a carrier; forming a plurality of 3D objects on the plurality of build platforms using an additive manufacturing process, where each build platform receives at least one 3D object thereon; removing the plurality of build platforms from the carrier; performing post-processing of the plurality of 3D objects while the 3D objects remain on the respective build platforms; and separating the plurality of 3D objects from the respective build platforms.
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