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202
resultados
Última actualización
21/11/2024 [07:21:00]
Resumen de: WO2023131573A1
The invention relates to a computer-assisted method, a system and a computer-program product for assisting with preoperative planning for introducing a dental implant in a jaw of a patient. On the basis of a provided digital 3D surface reproduction, e.g. a digital plaster model, of at least part of the available dental crowns and/or the oral mucosa of the patient and statistical parametric 3D shape models (SSM), a tooth axis representation, a tooth crown representation and/or an implantation axis representation is generated. This takes place on the basis of the digital 3D surface reproduction and the corresponding statistical parametric 3D shape model. In addition, a corresponding statistical parametric 3D shape model can also be generated by means of the method, system and computer-program product. In order to check the plausibility, the determined representations for the tooth axis, tooth crown and/or implantation axis can be reproduced in an additionally taken 2D X-ray image, e.g. an orthopantomogram.
Resumen de: CN118355156A
A process of producing a core-sheath polymer strand includes at least partially inserting a nucleation element through a first pre-strand composition into a second pre-strand composition. The first pre-strand composition includes a first polymer and the second pre-strand composition includes a second polymer. The nucleation element is then withdrawn from the second pre-strand composition through the first pre-strand composition. The nucleation element is then pulled out of the first pre-strand composition such that the polymer strand is pulled out of the pre-strand composition by the nucleation element, the polymer strand comprising a core of the first polymer encapsulated by a sheath of a second polymer. The core-sheath polymer may be differently crosslinked, and the functional additive may be included in the pre-strand composition such that the core-sheath polymer contains different functional additives in the core and sheath, or contains different concentrations of the same additive in the core and sheath.
Resumen de: GB2630026A
A titanium-based alloy consisting of (by weight): 0-22.5 % niobium, 0-5.0 % molybdenum, 0-15.0 % tantalum, 0-22.0 % zirconium, 0-20.0 % tin, 0-0.5 % hafnium, 0-0.5 % aluminium, 0-0.5 % vanadium, 0-0.5 % iron, 0-0.5 % chromium, 0-0.5 % cobalt, 0-0.5 % nickel, 0-1.0 % silicon, 0-0.2 % boron, 0-0.5 % calcium, 0-0.5 % carbon, 0-0.5 % manganese, 0-0.5 % gold, 0-0.5 % silver, 0-0.5 % oxygen, 0-0.5 % hydrogen, 0-0.5 % nitrogen, 0-0.5 % palladium and 0-0.5 % lanthanum with the balance being titanium and incidental impurities. The composition further satisfies the following equations: The alloy has a low stiffness, a low martensitic start temperature, good beta stability and can be used to make biomedical implants and prosthetic devices.
Resumen de: WO2023135267A1
The invention concerns a method, in particular a computer-implemented method, for performing scaffold design optimization (h) towards enhanced bone healing, the method comprising the steps of a) Inputting a set of parameters comprising information about a geometry and a material of a scaffold (3) to a computational model, the computational model comprising a finite element model and a mechano-biological computational model, wherein the finite element model determines and provides a set of mechanical information data for the set of parameters to the mechano-biological computational model, wherein the mechano-biological computational model determines from the set of mechanical information data a regenerated bone volume; b) Determining a plurality of regenerated bone volumes for a plurality of sets of parameters according to step a), such as to generate a scaffold bone data associating the regenerated bone volume with the corresponding set of parameters; c) Determining a computational surrogate model consisting of an analytical expression configured to associate the regenerated bone volumes with the sets of parameters from the scaffold bone data; and d) Determining from the computational surrogate model an optimum set of parameters for which the computational surrogate model puts out a maximum regenerated bone volume. The invention also concerns a computer program and a method to manufacture a scaffold (3).
Resumen de: CN118977420A
一种颅骨矫形固定器的制造方法及颅骨矫形固定器，其中制造方法包括根据患者颅缝早闭症的症状和术后头型，得到该患者的标准头型；根据所得到的该患者的标准头型、以及对应该患者的颅骨生长参数，得到该患者的目标头型；根据所得到的该患者的目标头型，建立该患者的颅骨矫形固定器模型。
Resumen de: WO2023198703A1
The invention relates to a curable composition for dental purposes. The invention is characterized in that the composition comprises core-shell impact modifiers and 0.1 to 10 wt.% of a binder based on long-chain mono-functional (meth)acrylic acid esters, wherein the ester group has a carbon chain with at least 3 carbon atoms. The invention also relates to the use of the composition as a dental material or a dental auxiliary material, to a dental product made of the composition, and to a method for producing the dental product.
Resumen de: CN222018501U
本实用新型公开了一种通过3d打印的新型驼背矫正姿势装置，涉及一种驼背矫正技术领域，通过3D打印的新型驼背矫正姿势装置主要是用于帮助纠正驼背姿势，主体是一个3D打印的驼背矫正板，通过扫描仪采集人体的数据，来根据每个人的需求定制3D打印的驼背矫正板，该板的后端中间设置有辅助矫正板，辅助矫正板可以塑形成任意弧度，目的是贴合到3d打印矫正板，辅助支撑人体脊柱，弧度根据人体自身体形弧度所塑形而成，辅助矫正板靠近下端设置有矫正带调节套，左上端设置有左侧矫正带固定器，右上端设置有右侧矫正带固定器，左侧矫正带固定器的外侧设置有左侧矫正带，右侧矫正带固定器的外侧设置有右侧矫正带。
Resumen de: CN222018508U
本实用新型提供医用智能气囊支具系统，包括上支具，下支具，通孔，护腕，固定架，固定螺钉和气囊和控制盒，所述上支具的一侧面设置有下支具，其中上支具和下支具的内部分别贯穿开设有若干所述通孔，且上支具的一端固定有护腕；所述上支具和下支具的接触位置滑动安装有固定架，且固定架的内部滑动穿过有固定螺钉；所述上支具和下支具之间活动设置有气囊，其中气囊的一侧面固定有控制盒。本实用新型，重量轻，提高了患者舒适度，并且能够智能化对患者肢体进行按摩。
Resumen de: GEP20237562B
The invention concerns a detergent-free decellularized dECM preparation method, a detergent-free decellularized dECM in a powder form and in a liquid form, a method of preparation of a primary bioink, the primary bioink, a method of preparation of a vascular bioink, the vascular bioink, a three dimensional structure comprising the primary bioink and/or the vascular bioink and a method of preparation of the three-dimensional structure. s
Resumen de: CN118957376A
本发明属于钽合金材料领域，提供了一种纳米晶组织Ta‑Ti‑Cu合金及其制备方法，该合金的化学成分如下(重量％)：Cu：1‑12；Ti：10‑40；余量为Ta。该合金的制备方法为：利用选择性激光熔化技术，激光功率500‑800W，扫描速度1000‑2500mm·S‑1，层间偏转角30‑90°，能量密度100‑300J·mm‑3。制备所得合金的显微组织为纳米尺寸级细条组织，细条组织的宽度在80～150nm之间。该纳米晶组织Ta‑Ti‑Cu合金的抗拉强度≥1200MPa，延伸率≥12％，可在航天航空、医学材料、工业等领域中应用。
Resumen de: CN118949124A
本发明提供微孔钛金属跖骨植入体的制作方法，属于生物医学工程和骨科植入技术领域；该方法通过收集患者的足部CT扫描数据，利用镜像技术生成个性化的第一跖骨和内侧楔骨的3D模型，进行有限元分析优化，使用电子束熔融金属快速成型系统和Ti6Al4V粉末制造出钛制的跖骨植入体，最后通过手术在患者足部植入假体，通过设置的植入体能够更好地与患者骨骼匹配，提供更高的初始稳定性和长期骨整合性，通过个性化设计和有限元分析优化，本发明的植入体能够减轻患者的疼痛，加快康复过程，并提高患者的生活质量，通过跖骨植入体表面粘接药物可辅助治疗和手术提高疗效，通过电化学阳极氧化改善跖骨植入体耐腐蚀性能，增强跖骨植入体的生物活性、生物相容性等综合性能。
Resumen de: CN118974104A
本文公开了一种光敏组合物和固化组合物，所述光敏组合物包括可光固化的组合物和光引发剂，所述光引发剂包含芳基‑双吖丙啶，其中所述双吖丙啶带有吸电子基团，所述固化组合物是通过固化所述光敏组合物获得的。本文还公开了一种固化组合物，所述固化组合物包括固化聚合物树脂和芳基‑重氮烷与亲偶极体之间形成的反应产物，其中重氮烷带有吸电子基团。本文还公开了一种形成固化聚合物树脂的方法，所述方法包括以下步骤：(a)提供如上所述的光敏组合物，以及(b)将其暴露于光源一段时间以提供固化聚合物树脂。
Resumen de: CN118949139A
本发明涉及一种介孔氧化硅分子筛掺杂水凝胶复合支架及其制备方法和应用。利用MCM‑41、HMS、SBA‑15一维介孔氧化硅分子筛负载产氧粒子过氧化钙，得到M‑SiO2‑CaO2，将其加入丙烯酰胺/海藻酸钠基混合双网络水凝胶中，形成水凝胶生物墨水，通过3D打印技术，将其制备为特定形状结构，固化后形成水凝胶复合支架。该水凝胶复合支架提高了过氧化钙负载量，基于介孔分子筛的孔道结构实现缓释效果，有效延长了产氧时间，并且该水凝胶复合支架具有优异的机械强度。通过本方法制备得到的水凝胶复合支架能够用于骨损伤修复材料，高效促进骨再生。
Resumen de: AU2023235004A1
A method For manuFacturing a perFusable three-dimensional tissue model, containing therein a channel distributed across its entire structure, enabling the Flow oF Fluids, wherein bioprinting a vascular system with the extrusive method using bioink, the walls opening and closing the channel in its upper part being printed parallel to the channel axis, and bioprinting oF the model body with the extrusive method using bioink, the bioink For printing the body being diFFerent From the bioink used For bioprinting the vessels, placing the resulting system in an incubator, in a temperature in which bioink For printing the vascular system undergoes melt, removing the bioink, optionally, causing growth in the channel by means oF cells in a medium, wherein, the cross-section oF the channel being the same as the cross-section oF native vessels present in a living organism. The inventions relates to a bionic model with a perFusable system.
Resumen de: CN118951023A
本发明提供一种增材制造的多孔合金螺钉结构的制备方法及其多孔合金螺钉结构，属于合金技术领域，包括设计工装与功能梯度晶格结构、3D打印前处理、钛合金或钽合金增材制造、后处理去除粉末、热处理强化、多孔区树脂包埋保护、精密机械加工、树脂去除及最终检测包装全过程，最终得到高性能的多孔合金螺钉；本发明通过精确控制R值与晶格结构特征参数的场驱动，实现了从轴心到外周的连续梯度多孔设计，消除了传统设计中的过渡界面，优化了物理量传导并增强了螺钉强度与稳定性，同时，采用树脂包埋技术保护多孔区域，简化了制造工艺，降低了技术难度，实现了轻量化目标，并保障了螺钉成品质量，拓宽了多孔合金螺钉在多个领域的应用前景。
Resumen de: CN118949266A
本发明属于生物医学技术领域，涉及一种柔性神经电极及其制备方法，对初始神经电极进行氧等离子体处理后，将初始神经电极浸入盐酸多巴胺溶液之中进行第一次电聚合得到已修饰电聚合PDA层的神经电极，再将已修饰电聚合PDA层的神经电极浸入EDOT溶液之中进行第二次电聚合，再进行退火处理，即得柔性神经电极。本发明通过在初始神经电极的电极位点上引入由位于下方的电聚合PDA层和位于上方的电聚合PEDOT层组成的复合层，显著增强了界面结合力，提高了电极的导电性、稳定性和生物相容性，从而延长了神经电极的使用寿命，解决了现有技术中PEDOT涂层易脱落和性能退化的问题。
Resumen de: CN118949128A
本申请公开了一种压电聚芳醚酮骨修复支架及其制备方法和应用，属于医用生物材料技术领域。所述压电聚芳醚酮骨修复支架由含有无定形聚芳醚酮、纳米钛酸钡和纳米羟基磷灰石的混合物通过3D打印制得。本申请所提供的压电聚芳醚酮骨修复支架，可通过模拟天然骨固有的压电效应，在骨缺损部位将机械能转化为电能，提供长期且稳定的电刺激。这种电刺激在骨的生长及重塑中发挥着重要作用，并且在体内外可促进细胞的增殖及分化。
Resumen de: CN118948515A
本发明提供4D打印桡骨远端小夹板，属于医疗器械技术领域，包括：若干小夹板以及相同个数的张力调整部，所述张力调整部安设在对应的小夹板上外盒；所述张力调整部包含：扭动台，和外盒旋接；联动单元，安设在外盒中，所述联动单元包含牵引单元一、牵引单元二以及轮盘，所述牵引单元一与轮盘都和扭动台联动相连，所述牵引单元二和轮盘联动相连，所述轮盘旋接在牵引单元一上。本发明解决了传统小夹板固定时引起的弊端及并发症，且传统小夹板固定时操作不便，通过布条对小夹板进行束缚，需要一定的技术，患者不能自行操作，传统小夹板若固定不牢靠，可能导致固定失效，引起患者疼痛、畸形愈合的问题。
Resumen de: CN118949138A
本发明涉及一种ZIF‑8衍生纳米催化剂掺杂水凝胶复合支架及其制备方法和应用，利用ZIF‑8前驱体高温碳化得到氮掺杂碳材料ZIFC纳米催化剂，将其加入丙烯酰胺/羧甲基纤维素钠基混合双网络水凝胶中，再加入氯化钙，通过3D打印得到水凝胶复合支架。该复合支架成功实现广谱ROS催化分解，且具有优异的机械强度和骨诱导性，可有效促进骨再生；并具有较高机械性能，能够用于骨缺损修复时可以支撑骨缺损部位的骨再生。
Resumen de: CN222004451U
本实用新型公开了一种医疗模型3D打印智能装置，包括支撑台、打印装置、换气风机和紫外线照射灯。支撑台上安装固定有玻璃箱，玻璃箱的前侧设有玻璃门，玻璃箱内设有密封空间。打印装置位于密封空间，打印装置包括主机、移动机构和打印头，打印头上固定安装有风扇，风扇的出风口指向打印头的喷嘴，以加速喷嘴喷出物料的固化。换气风机安装至玻璃箱的侧壁，且换气风机内设有过滤棉，实现对密封空间内空气的净化。紫外线照射灯位于密封空间，且紫外线照射灯指向打印装置，以对打印模型进行除菌，减少所打印的医疗模型的含菌量。
Resumen de: US2023165666A1
A parameter recommendation module is used to propose a recommendation for dental restoration material parameters. The recommendation takes into consideration final tooth color influencing factors such as underlying tooth stump color and color of restoration fastening material such that at least one output restoration characteristic value needed to achieve a final user-specific tooth color for at least one tooth layer of the restoration is proposed.
Resumen de: AU2022400182A1
The present invention refers to a biomimetic minerizable 3D-printing ink, a method for the production of such a biomimetic minerizable 3D-printing ink, a method for the production of a biomineralized 3D-printed article, a biomineralized 3D-printed article as well as the use of a crystallization trigger which is an oligopeptide selected from the group comprising an oligopeptide of the HABP family and an oligopeptide of the P11-family for 3D printing.
Resumen de: CN221998101U
本实用新型公开了一种渐变3D打印支撑结构，具体涉及医用设备领域，包括髋臼杯毛坯本体和位于髋臼杯毛坯本体底部的外边缘支撑机构，所述髋臼杯毛坯本体的低端外表面开设有外环槽，所述外边缘支撑机构的内腔固定连接有内部支撑结构，所述外边缘支撑机构的表面间隔开设有内部通孔。本实用新型首先通过设置的外边缘支撑机构和内部支撑结构的配合，可以对髋臼杯毛坯本体的边缘进行支撑，并降低了翘边发生率，弱化了对毛坯边缘的拉力，避免浪费金属粉末，并通过设置的支撑板和支撑柱分别设置为致密网格和疏松网格结构，可以实现轻量化效果，并提高支撑强度，降低材料消耗，避免浪费金属粉末，提高3D毛坯的成功率。
Resumen de: US2024376039A1
The present disclosure provides monomer compounds that can produce desirable polymeric materials and photo-curable resins. Further provided herein are methods of producing compounds, compositions, resins, devices, and polymeric materials. Also provided herein are methods of using compounds, resins, and polymeric materials for the fabrication (e.g., via 3D printing) of medical devices, such as orthodontic appliances.
Nº publicación: KR20240162065A 14/11/2024
Solicitante:
가부시키가이샤도쿠야마덴탈
Resumen de: WO2023176792A1
Provided are a mill blank that has a section to be cut which is formed of a hybrid resin (HR) and makes it possible to produce, regardless of the shape, a dental prosthesis that faithfully reproduces the gradation of natural teeth, and can obtain a natural three-dimensional effect after treatment. For example, two types of HR raw material compositions giving the HR of colors A and B having a color difference of 5-20 are filled in a mold while appropriately mixing the HR raw material compositions using a two-liquid mixing dispenser with a position control mechanism and then cured. Thus, five to nine color units (CUs), which are regions having a predetermined thickness and exhibiting an identical color appearance, are connected in the height direction without forming a laminated interface, and thus, the color appearance is gradationally changed in the height direction. Furthermore, the colors of the tip section and the base end section are A and B, respectively, and the color of the intermediate section is a color between A and B. In addition, the mill blank comprises a section to be cut having a gradation structure in which the color difference between adjacent CUs in the intermediate section is 1-7.
BOPI
Sede Electrónica
