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153
resultados
Última actualización
12/10/2025 [07:09:00]
Resultados 125 a 150 de 153
Resumen de: US2025288399A1
A method and apparatus for cutting a three-dimensional tooth model are provided. The method includes: obtaining a two-dimensional projection image of a three-dimensional tooth model, and recognizing the two-dimensional projection image to obtain a plurality of tooth regions, the tooth regions corresponding one to one to teeth; determining original seed points corresponding to the plurality of tooth regions in the three-dimensional tooth model; expanding the original seed points within a preset range to obtain target seed points of the teeth in the three-dimensional tooth model; and cutting the three-dimensional tooth model based on the target seed points of the teeth to obtain cut teeth.
Resumen de: US2025288423A1
A method for 3D printing a prosthetic socket from a digital model, including printing a solid wall perimeter of the prosthetic socket with a width achieved in a single pass of a printing nozzle, and forming a plurality of stiffener elements proximate a bottom end of the prosthetic socket, as a function of the printing the solid wall perimeter, is provided. Also provided is a 3D printed prosthetic socket including an upper portion, a lower portion configured to be attached to a prosthetic pylon, and a plurality of stiffener elements radially extending from the lower portion, wherein the upper portion, the lower portion, and the plurality of stiffener elements are printed as a solid wall construction comprised of a printing material deposited using only a single pass of a printing nozzle.
Resumen de: US2025288424A1
A method of surgically treating a patient suffering from severe pain and disability of the low back and buttock by stabilizing the patient's spinal column to their pelvis with an implant system including surgical tools and an implant designed to prevent movement between the sacrum and the ilium while being able to attach to a spinal fusion rod which connect to pedicle screws implanted in the bones of the spine of the patient in order to offer lasting relief of the patient's symptoms. The system is designed to address complications in adult spinal deformity by optimizing spinopelvic fixation vis-à-vis the unique biomechanics of the SI joint. The sacropelvic system is a surgical solution which provides an additively manufactured implant at the base of the spine employing an S2AI trajectory while utilizing assisting technologies including surgical navigation and intraoperative neurophysiological monitoring.
Resumen de: AU2023377822A1
A detachable printhead for a bioprinter is disclosed, the detachable printhead comprising a body, removably attachable to a fixed portion of the bioprinter; a dispensing system, supported by the body; one or more reservoirs, for holding one or more biomaterials, in fluid communication with the dispensing system, supported by the body; and a coupling for attaching to the fixed portion of the bioprinter, the coupling including an interface for operating the dispensing system.
Resumen de: AU2023375461A1
Compositions and methods for delivery of therapeutic agents to an individual in need thereof, for prevention/reduction of tissue adhesion, and for 3D printing are disclosed herein. In some embodiments, the composition comprises octadecyl modified hydroxypropyl methylcellulose (HPMC-C18) and a surfactant or cyclic polysaccharide, wherein the composition is a hydrogel that exhibits dynamic properties.
Resumen de: WO2024100147A1
A load-carrying rod (1) for an implant system has a structure of individual interconnected solidified droplets (4) so that the transitions from one droplet to another act as crack stoppers in the event of a crack.
Resumen de: EP4617061A2
A side-deliverable prosthetic heart valve includes an outer frame and a flow control component. The outer frame defines a central channel that extends along a central axis. The flow control component is disposed within the central channel and coupled to the outer frame. The flow control component has a set of leaflets mounted within an inner frame. The prosthetic valve is configured to be folded along a longitudinal axis and compressed along the central axis to place the prosthetic valve in a compressed configuration for delivery via a delivery catheter. The longitudinal axis is substantially parallel to a lengthwise axis of the delivery catheter when disposed therein. The prosthetic valve transitions to an expanded configuration when released from the delivery catheter. The flow control component elastically deforms from a substantially cylindrical configuration to a substantially flattened configuration when the prosthetic valve is placed in the compressed configuration.
Resumen de: MX2021013857A
Provided herein are composite scaffold biomaterials including two or more scaffold biomaterial subunits, each including a decellularized plant or fungal tissue from which cellular materials and nucleic acids of the tissue are removed, the decellularized plant or fungal tissue having a 3-dimensional porous structure, the two or more scaffold biomaterial subunits being assembled into the composite scaffold biomaterial and held together via gel casting using a hydrogel glue; via complementary interlocking geometry of the two or more scaffold biomaterial subunits; via guided assembly based biolithography (GAB); via chemical cross-linking; or any combinations thereof. Methods for producing such scaffold biomaterials, as well as methods and uses thereof, are also provided.
Resumen de: WO2024165390A1
The invention relates to a method for additive manufacturing of a microstructure (10) for selective transmission of X-ray or gamma-ray radiation. The method includes depositing (110) a layer of powder on a build plate or on a layer from at least one previous manufacturing step on the build plate, wherein the layer of powder comprises a high-Z material powder. Furthermore, the method includes selectively melting (120) and solidifying the powder to form septa wall structures (20) by scanning an electron beam in a spot sequence on the layer of powder to sequentially expose a plurality of spots (40) on the layer of powder to an electron beam spot. A size of the electron beam spot is at most 150 μm in diameter, preferably at most 75 μm in diameter, and more preferably at most 50 pm in diameter. The high-Z material powder comprises a high-Z material having an atomic number Z of at least 40, and preferably at least 70. The invention also relates to a microstructure for selective transmission of X-ray or gamma-ray radiation, which microstructure has been obtained by the method, and to an imaging component comprising such microstructures. The invention also relates to a method for manufacturing an imaging component.
Resumen de: CN120643748A
本发明提供一种3D打印生物墨水及其制备方法和应用。所述3D打印生物墨水包括如下组分：甲基丙烯酸酐化明胶、氧化透明质酸、羧甲基壳聚糖和2‑甲基丙烯酰氧乙基磷酸胆碱。本发明通过对3D打印生物墨水的具体组成进行设计，制备得到了打印性能好、力学强度好、电传导性能好、打印后细胞存活率高的3D打印生物墨水，进而制备得到了细胞‑支架相互作用较强的3D打印支架，可用于制备皮肤损伤修复材料。
Resumen de: US2022371264A1
The present invention provides a resin composition for stereolithography that enables easy stereolithographical fabrication; and that can produce a cured object having desirable strain recovery, desirable toughness, and desirable water resistance. The present invention relates to a resin composition for stereolithography comprising a polymerizable compound (A) whose homopolymer has a glass transition temperature (Tg) of 37° C. or higher; and a photopolymerization initiator (B), and having a tan δ at 37° C. of 0.3 or less after cure.
Resumen de: AU2024218051A1
The present invention provides a curable composition for three-dimensional stereolithography, the curable composition being used in a vat photopolymerization method and containing 100 parts by mass of a polymerizable monomer component (A), 40 parts by mass to 400 parts by mass of an inorganic filler (B) that is composed of a single kind or plural kinds of inorganic particulate matter, and 0.01 part by mass to 5 parts by mass of a photopolymerization initiator (C), wherein: 80% or more of all primary particles that constitute the inorganic filler (B) have a particle diameter of 0.05 µm to 5.0 µm; and a sample, which is formed of this curable composition for three-dimensional stereolithography and has a thickness of 0.5 mm, has a transmittance of 1.00% to 50.00% with respect to activation light. The present invention also provides a method for producing this curable composition for three-dimensional stereolithography. The present invention also provides a method for producing a three-dimensional stereolithographic model and a method for producing a dental restoration, each using this curable composition for three-dimensional stereolithography.
Resumen de: PL132035U1
Obudowa wzmacniająca i uszczelniająca biodrukowany model tkankowy, składająca się z modułu wewnętrznego oraz zewnętrznego, moduł wewnętrzny zawiera: podstawę składającą się z dna w kształcie prostokąta o zaokrąglonych rogach i ścian bocznych, przy czym na jednej z krótszych ścian bocznych, po stronie zewnętrznej znajdują się dwa elementy mające kształt tulei, usytuowane obok siebie; średnica elementów jest mniejsza niż wysokość ściany bocznej; i pokrywę składającą się z powierzchni górnej w kształcie prostokąta o zaokrąglonych rogach i ścian bocznych, przy czym na jednej z krótszych ścian bocznych znajdują się dwa otwory o kształcie ściętego koła, odpowiadające wielkością elementom w kształcie tulei, przy czym pokrywa na całej górnej powierzchni posiada perforacje, przy czym po złożeniu podstawy i pokrywy ściany boczne podstawy znajdują się wewnątrz modułu, a ściany boczne pokrywy znajdują się na zewnątrz modułu wewnętrznego, wysokość ścian bocznych jest dobrana w taki sposób, aby po złożeniu ściany zewnętrzne zakrywały całkowicie ściany wewnętrzne, moduł zewnętrzny zawiera: pojemnik, o kształcie otwartego prostopadłościanu posiadającego zaokrąglone rogi i pokrywę zewnętrzną (8), zamykającą pojemnik (7), przy czym powierzchnia górna (P) pokrywy zewnętrznej (8) posiada dwa otwory (9), które rozmiarem i rozmieszczeniem odpowiadają elementom znajdującym się w module wewnętrznym, p
Resumen de: PL132037U1
Przedmiotem zgłoszenia jest komora z układem przepływowym do biodrukowania i hodowli modeli tkankowych zawierająca: korpus (1) komory z otworem środkowym przesłoniętym szkiełkiem dolnym (2), przykryty z wierzchu pokrywą (3) zaopatrzoną w otwór środkowy przesłonięty szkiełkiem górnym (5), przy czym pomiędzy korpusem (1) komory i pokrywą (3) komory znajduje się silikonowa uszczelka obwodowa (4), gdzie korpus (1) komory na swoich dwóch przeciwległych końcach zaopatrzony jest w złącza (8) z kanałami łączącymi (10) zapewniającymi połączenie płynowe z objętością roboczą komory wyznaczoną przez ściany wewnętrzne korpusu (1) komory i pokrywy (3), uszczelkę obwodową (4) i powierzchnie wewnętrzne szkiełka dolnego (2) i szkiełka górnego (5) skierowane ku sobie nawzajem, gdzie układ przepływowy jest utworzony przez złącza (8) wraz z kanałami łączącymi (10) oraz objętość roboczą komory zawartą pomiędzy nimi; oraz obudowę zewnętrzną komory złożoną z ramki dolnej (6) i ramki górnej (7), przy czym korpus (1) komory i pokrywa (3) komory wraz z elementami zawartymi pomiędzy nimi są zamknięte pomiędzy ramką dolną (6) i ramką górną (7) obudowy zewnętrznej, które połączone są ze sobą rozłącznie.
Resumen de: CN120616817A
本发明涉及种植牙体自动模拟制备技术领域，具体公开了一种具有三维梯度结构的牙齿种植方法，通过口内扫描仪获取颌骨三维数据，建立种植牙体的梯度仿生结构；咬合力分析模块计算各区域应力分布，通过激光微织构形成拓扑梯度，基于颌骨三维数据生成具有力学适配性的梯度结构模型；金属打印形成基台和固位螺丝，进行激光表面处理，牙冠进行真空烧结处理；植体的内置槽内部设置电化学沉积纳米ZnO抗菌层，植体的内置槽内安装基台，基台上安装牙冠；种植牙体采用单体配装或者连桥配装，种植牙体连桥配装时，三个牙冠为整体成型结构；本发明减少医生手术打磨次数以及护理次数，提高牙齿种植效率，大大减少使用者的适应期，提高种植牙体的使用舒适性。
Resumen de: CN120616173A
本发明公开了一种集成式食品3D打印喷印机，本发明涉及3D打印技术领域。包括安装在控制面板外壳前壁的控制面板、顶部观察门框架、前观察门框架、后部整体外壳，所述顶部观察门框架、前观察门框架、后部整体外壳相互组合安装构成机箱，通过设置装料罐加热盒装置，整体为夹层式结构中间用于放置硅橡胶加热板、温度传感器和压力传感器，使用硅橡胶加热板加热内部的物料装填罐，温度传感器实时检测温度，并传回数据便于实时调节加热的温度，压力传感器用于检测电推杆挤压出物料装填罐内物料时的压力，并传回数据用于精准控制电推杆的挤压力度，在外部左右两侧设计有磁力固定零件放置架，用于回收和放置时的固定。
Resumen de: WO2025186835A1
The present invention discloses a bioresorbable cardiovascular stent (100). The bioresorbable cardiovascular stent (100) comprising at least one strut (104) (110) connecting the plurality of rhombus-shaped cells (102) in both the longitudinal directions and the circumferential directions and each strut (104) (110) provided with a consistent thickness (108) and width (106). The stent (100) maintains a uniform thickness (108) throughout its length, and featuring struts (104, 110) with consistent thickness (108). The stent (100) is manufactured by using a micro-injection molding process with a single sprue-less hot runner gate. The bioresorbable cardiovascular stent (100) is configured to maintain structural integrity, biocompatible properties, improve radial stiffness to (612 kPa/mm) and radial strength to (225 kPa).
Resumen de: CN120617629A
本发明涉及3D打印用生物材料技术领域，特别涉及一种3D打印功能增强的聚醚醚酮复合材料及其制备方法。一种3D打印功能增强的聚醚醚酮复合材料，该材料包括如下质量份数的原料：聚醚醚酮75‑85份，改性生物活性材料5‑10份，碳纳米管1‑3份，有机成核剂0.5‑2份，生物调节剂0.1‑1份，抗菌剂0.1‑1份；所述改性生物活性材料为改性羟基磷灰石和/或改性磷酸三钙。该基本配方实现了多功能组分的协同作用，通过精心配比的聚醚醚酮、改性生物活性材料、碳纳米管等成分，解决了现有PEEK材料在生物活性和结晶性能方面的不足，并提供了优异的力学性能和生物相容性。
Resumen de: WO2025188203A1
The invention relates to a composition for three-dimensional printing comprising a hydrogel comprising: a. graphene oxide, b.methacrylated derivatives of biopolymers, and c. radical polymerisation photoinitiator
Resumen de: WO2024163829A1
A drug delivery device includes at least one tissue penetrating member configured to embed into tissue, the at least one tissue penetrating member including: a plurality of cavities, and at least one payload comprising at least one active pharmaceutical ingredient (API), the at least one payload loaded into the plurality of cavities so that the at least one API can be absorbed into the tissue when the at least one tissue penetrating member is embedded in the tissue, wherein a ratio of a surface area of the plurality of cavities to a volume of the plurality of cavities is at least 0.5:1
Resumen de: CN120617616A
本申请提供用于聚多巴胺修饰的水凝胶，其包含：明胶和海藻酸钠形成的三维水凝胶骨架，其中，所述明胶和所述海藻酸钠未化学交联；以及结合于所述三维水凝胶骨架上的聚多巴胺颗粒。本申请还提供包含所述聚多巴胺修饰的水凝胶的生物墨水以及所述生物墨水在制备用于抗炎、促进伤口愈合或促血管化的3D打印支架的用途。
Resumen de: WO2025186544A1
A printhead for 3D printing of solid-dosage-forms, said printhead having an integrated powder dispenser or an integrated peristaltic pump, wherein said solid-dosage-form comprises at least one active-ingredient and at least one excipient. Related 3D printers, solid-dosage-form printing apparatuses and associated methods are also disclosed.
Resumen de: CN120622908A
本申请提供的多孔生物陶瓷、制备方法及其应用，将氧化铝浆料与造孔剂混合得到混合浆料；采用DLP 3D打印以逐层投影的方式，使混合浆料发生光固化反应，逐层打印积累成型以得到陶瓷坯体；对陶瓷坯体进行高温处理，以得到多孔生物陶瓷，本申请通过氧化铝浆料复合造孔剂与DLP 3D打印技术，保证材料内部无贯通孔，维持高致密度与力学强度，解决现有技术中表面性能与力学性能难以兼顾的问题；且在高固含量氧化铝陶瓷表面构建离散多孔结构，实现表面粗糙度与的精准调控，直接形成表面离散孔洞，省略复杂的后处理过程；通过烧结工艺，控制整体烧结收缩率，提升复杂结构的成型精度，满足规模化生产需求，可应用于骨组织工程支架及牙齿修复材料。
Resumen de: CN120624889A
本申请涉及医疗器械技术领域，具体公开了一种3D打印多孔TC4合金接骨板以及制备方法。一种3D打印多孔TC4合金接骨板，其包括如下原料：Fe、C、N、H、O、Al、V、余量为钛粉；所述3D打印多孔TC4合金接骨板为多孔结构，孔径为300‑600μm，孔隙率为60%‑75%，孔隙连通率＞95，且所述3D打印多孔TC4合金接骨板上设置有若干个固定孔。本申请所得到的3D打印多孔TC4合金接骨板的抗拉强度、断裂伸长率和疲劳极限最高可达1602MPa、30%和665MPa，具有较高的力学性能，改善了畸形矫正锁定接骨板无法适应复杂解剖结构，导致术后稳定性较差或畸形矫正角度丢失等问题。
Nº publicación: CN223327186U 12/09/2025
Solicitante:
杭州西湖生物材料有限公司
Resumen de: CN223327186U
本申请公开了一种带环喷码工装夹具，其包括底板、设置于所述底板顶部前侧的上模、设置于所述底板顶部后侧的下模，所述上模与所述下模相互对应，所述底板顶部还均匀固定设有若干定位板，若干所述定位板位于所述上模与所述下模之间，所述上模上均匀固定设有若干角码块，所述角码块位于所述定位板右侧，所述下模上均匀固定设有若干固定板，所述夹具通过调节所述固定板、所述角码块与所述定位板之间的间距来实现对不同规格所述带环的夹紧固定。
BOPI
Sede Electrónica
