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220
resultados
Última actualización
29/05/2025 [07:17:00]
Resultados 200 a 220 de 220
Resumen de: WO2025089876A1
The present invention relates to a technology for manufacturing an artificial blood vessel and, more specifically, to a technology for manufacturing an artificial blood vessel by a 3D printing technique using hydrogel ink. In addition, the purpose of the present invention is to provide a training artificial blood vessel manufacturing apparatus capable of manufacturing an artificial blood vessel having physical properties similar to those of an actual blood vessel by presenting extrusion and curing conditions of hydrogel ink optimized for a 3D printing technique for manufacturing the artificial blood vessel.
Resumen de: WO2025089835A1
The present invention relates to a hydrogel composition for 3D printing and a method for fabricating an artificial blood vessel, using same, the hydrogel composition comprising a granular hydrogel and a matrix hydrogel solution, wherein the matrix hydrogel solution includes an acrylamide-based compound, a compound containing at least two hydroxyl groups, a crosslinking agent, an initiator, and a solvent.
Resumen de: WO2025090560A1
Methods for selective matting of some, but not all, surfaces of a silicone article of manufacture are disclosed. By use of a silicone matting additive and manipulation of process variables, a silicone article of manufacture may be produced that comprises some surface areas that exhibit silicone's inherent tacky texture and other surface areas that exhibit a matted texture. In an exemplary embodiment, a silicone prosthetic liner may be produced where an interior surface is taky and an exterior surface is matted.
Resumen de: WO2025091008A1
Described herein are methods of use involving tissue mimicking compositions comprising hydrogel systems and at least one therapeutic agent
Resumen de: WO2025091000A1
Provided herein are biodegradable nanocomposite inks for 3D printing of radiopaque scaffolds. In particular, X-ray visible, radiopaque, and photocurable liquid polymer-ceramic inks are provided comprising a composite of metal oxide nanosheets and acrylated/methacrylated polydiolcitrate polymers.
Resumen de: WO2025090537A1
The present disclosure provides systems and methods for fabricating an orthodontic retainer comprising a retainer base. The methods may include obtaining a first digital model representing the palate and the upper teeth of a patient. The methods may include creating, based on the first digital model, a second digital model representing the retainer base and a third digital model representing a teeth shell, and creating, based on the second digital model and the third digital model, a fourth digital model representing the retainer base and the teeth shell that are connected via a connecting structure. The methods may include generating a printed assembly by printing the fourth digital model using a first curable resin material. The printed assembly may at least include the retainer base, the teeth shell, and the connecting structure. The methods may include post-processing the printed assembly to obtain the retainer base.
Resumen de: WO2025090024A1
A printable shape memory polymer composition for use in fabricating a 4D printed dental aligner is provided The composition comprises a first (meth)acrylate monomer, a second (meth)acrylate monomer which provides transient crosslinks to the printable shape memory polymer composition, one or more crosslinkers, and a photoinitiator, wherein the printable shape memory polymer composition is responsive to change in temperature at temperature Tg to become flexible, allowing the printable shape memory polymer composition to be shaped and reshaped at temperature Tg. A 4D printed dental aligner comprising the printable shape memory polymer composition is also disclosed.
Resumen de: WO2025088603A1
A service providing apparatus is disclosed comprising a service platform configured for movement along a path having one or more object treatment zones, each object treatment zone comprising equipment configured to apply one or more treatment processes to surface areas of objects carried by one or more objects' platforms along said path. At least one service providing unit is mounted on the service support platform for applying one or more service procedures to the equipment of at least one of the one or more object treatment zones while the support platform is located within the at least one treatment zone, to thereby apply the one or more service procedures while the one or more objects' platforms are located along the path.
Resumen de: US2024238078A1
Embodiments herein relate to an implant for insertion into a patient. The implant comprises a plurality of unit cells arranged to form a three-dimensional lattice structure, the three-dimensional structure comprising a resting volume of the implant. The plurality of unit cells are arranged to form a porous network of the three-dimensional structure, and wherein the three-dimensional structure is a reversibly compressible three-dimensional structure, wherein a bulk porosity of the three-dimensional structure of the implant is at least 50%. Also disclosed is a method of tissue reconstruction or tissue augmentation. The method comprises implanting into the body of a subject an implant of the disclosure.
Resumen de: WO2025088142A1
The invention relates to a method for volumetric additive manufacturing (VAM) using holography for 3D printing an object, and a corresponding VAM system. The method includes determining a composite hologram, and performing a phase and/or spatial light modulating of a coherent input beam, such as a laser, based on the composite hologram and directing the spatially and/or phase modulated beam towards the reconstruction space to generate a pixelated projection in the reconstruction space, the pixelated projection being applied for printing the 3D object, for example using a photocurable resin. The invention provides improved resolution, speed, and/or light efficiency, in particular with respect to 3D printing of biological/medical objects, such as biocompatible implants, such as organs or parts of organs.
Resumen de: WO2024069629A1
A 3D-printing support medium is provided herein, comprising hybrid calcium-alginate hydrogel particles and a dispersion medium, formulated by combining calcium-alginate and a soluble polymer distinct from alginate, and the dispersion medium contains a minimum of 2 mM gluconate. These hybrid hydrogel particles possess an average size ranging from 0.1 pm to 50 pm, with exceptional homogeneity characterized by a particle size distribution of less than 50% RSD, resulting in a substantially transparent medium to visible light. The support medium is provided in various forms, including drained particles and slurries with different volume ratios of hydrogel particles to the dispersion medium. The process of preparing this support medium involves forming, pulverizing, washing, and contacting the hybrid hydrogel particles with a gluconate solution, ensuring the presence of gluconate within the hydrogel matrix.
Resumen de: WO2024062369A1
Guide plate for the anatomical realignment of a plurality of fractured bone portions, comprising a back surface configured such as it can be distinctively coupled to the surface anatomy of the area of said plurality of fractured bone portions and characterized by a first plurality of holes placed on a first portion of the guide plate and a second plurality of holes placed on a second portion of the guide plate, wherein the first plurality of holes is misaligned with respect to the second plurality of holes.
Resumen de: EP4545060A1
A three-dimensional printing composition includes: a polymerizable monomer; inorganic particles; and a photopolymerization initiator. The inorganic particles are surface-treated with a compound represented by a general formula (1)(in the general formula, R1 is a hydrogen atom or a methyl group; R2 is a hydrolyzable group; R3 is a hydrocarbon group having 1 or more and 6 or less carbon atoms; p is 2 or 3; and q is an integer of 5 or more and 13 or less).
Resumen de: WO2025022873A1
The present invention addresses the problem of providing a photosensitive resin composition that, when in the form of a cured film, has high transparency and chemical resistance, has low film stress, and has high adhesion to metal layers containing molybdenum, aluminum, or nickel. In order to solve such a problem, the present invention proposes a photosensitive resin composition comprising a metal chelator, a photo-radical polymerization initiator, and a siloxane resin having a radically-polymerizable group, where the content of an organosilane unit (D unit) represented by (R)2SiO2/2 (R is an organic group) in the siloxane resin having a radically-polymerizable group is 30-85 mol% with respect to 100 mol% of all of the organosilane units.
Resumen de: MX2024012594A
A process system and method for the making of articles, using an omnidirectional magnetic movement system (20) with a transport surface and fabrication modules having a formation surface that can be transported omnidirectionally over the transport surface under the control of a movement controller. An article forming system provides process unit operations for forming articles onto the formation surface as the fabrication modules are moved asynchronously between a plurality of processing positions on the transport surface, and features a depositing device (40) for placing a construction material onto the formation surface and one or more processing devices (50,60) to form the construction material into the article.
Resumen de: CN119896547A
本发明涉及外科器械材料领域，更具体的是涉及一种透明3D打印手术导向器及材料。导向器包括基体，基体由透明3D打印材料制成，用于附着在目标骨骼的外表面；基体包含多个解剖附着部，每个解剖附着部的附着面分别对应不同解剖部位；多个传感器，用于实时监测解剖附着部与目标骨骼的贴合情况；信号转换模块，嵌入在基体内部，用于将传感器的信号转换为可视信号；多个微型灯泡，微型灯泡镶嵌在基体内部，微型灯泡与信号转换模块连接，微型灯泡的亮度根据传感器的信号变化而变化；电源模块，用于为传感器、信号转换模块和微型灯泡提供电力。本发明提供了一种兼具全域可视化、解剖普适性和实时力反馈的新型手术导向器。
Resumen de: CN119896501A
本发明涉及一种3D打印个体化HTO术中快拆撑开器，属于HTO截骨技术领域，包括多个采取锁扣结构进行组合形成楔形垫块的分块和用于对多个分块进行锁定的锁销。本发明通过多个分块的组合结构使垫块是可拆分的，便于手术完成后轻松取出，并不需要破坏才能取出，从而避免内部未消毒碎片的污染风险，并通过锁扣结构进行组合、锁销进行锁定，形成整体的楔形垫块，从而保证下肢力线的准确矫正，安全性和便携性得到显著提升。
Resumen de: LU508716B1
The invention relates to a slotted 3D printed "sacroiliac hip" hemipelvic prosthesis, which comprises a sacroiliac joint surface prosthesis matched with the sacroiliac joint of a patient and an anti-dislocation hip joint prosthesis, wherein the sacroiliac joint surface prosthesis comprises a sacroiliac joint slot support part, an ilium contact part and a connecting part connected with the anti-dislocation hip joint prosthesis; the sacroiliac joint slot support part, the ilium contact part and the connecting part are integrally formed, and the periphery of the sacroiliac joint slot support part and the slot support part is connected with a 3D printed bone ingrowth interface; the lower part of the connecting part is a cylindrical structure, and the connecting part is connected with the anti-dislocation hip prosthesis; the anti-dislocation hip prosthesis has a hemispherical acetabular fossa structure.
Resumen de: US12285220B1
A system and method for planning and simulating a surgical operation to create a patient-specific spinal implant are disclosed. The system comprises a remote server configured to receive patient-specific medical image data and generate a 3D mesh model of the patient's spine using algorithms that separate vertebral bodies, remove artifacts, and smooth surfaces. A doctor's computer receives the 3D mesh model and allows real-time manipulation of intervertebral spaces to achieve a desired spinal curvature. The server generates a spinal implant design with surface-mapped endplates matching the patient's vertebral anatomy, which is transmitted to a 3D printer for manufacturing. The method includes steps of receiving image data, generating and updating the 3D mesh model based on doctor input, generating the final implant design, and transmitting it for production. The invention enables the creation of patient-specific spinal implants with improved conformity and surgical outcomes.
Nº publicación: ES3015108T3 29/04/2025
Solicitante:
IVOCLAR VIVADENT AG
Ivoclar Vivadent AG
Resumen de: KR20220049473A
The present invention relates to a method for designing dental restorations. The method comprises: determining a target data set on the basis of natural teeth to reflect at least one of optical characteristics and geometry of the natural teeth (S101); creating a digital teeth model having an internal architecture (S102); rendering the digital teeth model on the basis of the internal architecture to create an actual data set reflecting at least one of the optical characteristics and geometry of the digital teeth model (S103); calculating a deviation between the target data set and the actual data set (S104); and iteratively changing the digital teeth model to obtain a small deviation between the detected target data set and an actual data set of a re-rendered digital tooth model (S105).
BOPI
Sede Electrónica
