Insuficiencia velofaríngea en cirugía adenoamigdalina

Lu, Changhua; G, Claudia Arriagada; Pruzzo, Edda; J, Cecilia Gallo; P, Verónica Bley

doi:10.4067/s0718-48162012000200006

Cited by 2 publications

(3 citation statements)

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“…Such an approach enables obtaining objects with high complexity such as a robot with soft and rigid areas [46,90,91] or a robot that has areas composed of a functional materials and areas that only provide the skeleton of the device. [92][93][94][95][96] The extrusion-based methods, that is, FDM and DIW, are the simplest to incorporate multi-material printing by the addition of a nozzle, or an array of nozzles, that extrude other materials. There is a variety of commercial FDM printers with two nozzles or more that can print few materials at once.…”

Section: Multi-materials Printingmentioning

confidence: 99%

“…The location of the magnetic particles within the printed objects was controlled by the magnetic field during the printing process, resulting in functionally graded materials. A similar approach based on the magnetic-field assisted projection stereolithography technique for fabricating magnetic actuators was presented by Pan et al, [95] also by customizing a commercial SLA printer by adding not only a magnet, but also a nozzle that deposits the magnetic ink at a specific location. This approach allows better control over the location of the magnetic particles.…”

Section: Multi-materials Printingmentioning

confidence: 99%

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3D Printing Materials for Soft Robotics

et al. 2020

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that uses the sensor-generated information to accurately regulate and enhance the dynamic performance.Soft robots (and more in general soft material-based systems) can be built with a plethora of materials and composites having very different mechanical properties, spanning from fluids (i.e., liquid metals, etc.) and hydrogels, to stiff solids (i.e., acrylonitrile butadiene styrene (ABS), epoxy resins, etc.). Also, in most cases, the constituent materials have many degrees of freedom and are highly non-linear, with relevant hysteresis and viscoelastic behavior. Hence, modeling soft systems is a very challenging task, and it still misses a comprehensive theoretical foundation. [19] As a result, the modeling phase is often overlooked in the design process, which in most cases relies on trial and error experimentation. The most commonly used materials in the design of soft robotics are silicone-based elastomers, such as polydimethylsiloxane (PDMS). They are used as the flexible material in pneumatic actuators, [4,5,14] in magnetic actuators, [11] and in electrically driven actuators as well, usually along with a conductive layer, commonly a carbon-based material. [15,16] Besides, other flexible polymers such as polyimides, [8] polyurethanes (PU), [12,20] or hydrogels [9] are used. So far, most devices are fabricated by casting or molding of liquid monomers, followed by hardening by UV light or heat.3D printing is an additive manufacturing technique, in which a required material is deposited, layer by layer, to form a 3D object, that is, it is a sequential 2D printing. The main advantages of 3D printing over subtractive manufacturing methods, are the simplicity of the process and the ability to form complex and hollow structures. There is a variety of 3D printing technologies that are commercially available, as described in a diversity of review reports. [21][22][23] Therefore, we will present here only a concise description of the printing technologies that are most relevant to soft robotics, all of them are based on ink compositions which are liquid during the printing processes.The most widely used methods are based on extrusion of materials, called fused deposition modeling (FDM) [24,25] and direct ink writing (DIW). [26,27] Both methods rely on a material that is extruded through a nozzle onto a substrate, and differ by the materials being used, the nozzle's nature, and the fixation mechanism. In FDM, a thermoplastic filament is extruded through a heated nozzle, followed by solidification upon cooling on the substrate, to form a solid 2D layer. This technique is simple and not expensive, but is limited to thermoplastic polymers and has relatively low resolution. In DIW, a viscous Soft robotics is a growing field of research, focusing on constructing motorless robots from highly compliant materials, some are similar to those found in living organisms. Soft robotics has a high potential for applications in various fields such as soft grippers, actuators, and biomedical devices. 3D printing of soft robotics present...

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Section: Multi-materials Printingmentioning

confidence: 99%

Section: Multi-materials Printingmentioning

confidence: 99%

3D Printing Materials for Soft Robotics

et al. 2020

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“…La Insuficiencia Velofaríngea (IVF) es un trastorno funcional, el cual ocurre cuando no existe un cierre entre las paredes faríngeas laterales, posteriores y el velo del paladar durante la fonación y la deglución, donde no existe una separación perfecta entre la cavidad nasal y la cavidad oral por lo cual se merma la calidad de estas funciones (Naiman & Disant, 2006). Este trastorno funcional además puede causar habla hipernasal, emisión y turbulencia nasal y regurgitación nasal de líquidos (Lu et al, 2012).…”

Section: Introductionunclassified

Análisis de Patrones de Cierre Velofaríngeo en Pacientes con Labio y Paladar Hendido

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Hernández

et al. 2015

Int. J. Odontostomat.

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HERNÁNDEZ, R. M. P.; SÁNCHEZ, T. B.; DE LA FUENTE, H. J.; VILLANUEVA, V. M. C.; DÍAZ, A. J. A.; VILAR, P. G. & TENORIO, R. F. Análisis de patrones de cierre velofaríngeo en pacientes con labio y paladar hendido. Int. J. Odontostomat., 9(3):385-391, 2015.RESUMEN: El objetivo fue identificar los patrones de Cierre Velofaríngeo (CVF) en pacientes con Paladar Hendido (PH) y Labio y Paladar Hendido (LPH) que acuden a la Clínica de Atención Integral de Pacientes con Labio y Paladar Hendido (CAIPLPH) de la Escuela Nacional de Estudios Superiores, Unidad León (ENES, León). Estudio transversal, con una muestra por conveniencia de 79 pacientes entre 4 y 10 años de edad. Las variables incluidas fueron el patrón de CVF, tipo de hendidura, edad del paciente y el antecedente de intervención quirúrgica previa para el cierre de la hendidura palatina. A los pacientes se les realizó valoración clínica y nasofibroscopía por examinadores previamente estandarizados para conocer si existe una relación entre edad y patrón de CVF, entre el tipo de hendidura y patrón de CVF y una relación entre el patrón de CVF y el antecedente quirúrgico, utilizando una prueba bivariada de Chi cuadrada. Se examinaron 46 hombres y 33 mujeres con una media de edad 6,6 años. La frecuencia de los patrones de CVF fueron coronal 8,86%, sagital 67,08%, circular 13,92% y circular con rodete de Passavant 10,12%. Se observó una diferencia estadística significativa entre el patrón de CVF y el tipo de hendidura (X 2 = 53,93, p<0,001). Las diferentes formas en que se pueden presentar las hendiduras de paladar y labiopalatinas influyen en la función del CVF ya que se puede presentar un patrón distinto en cada caso. El patrón de CVF no se ve afectado por la edad ni por el antecedente quirúrgico de cierre de la hendidura palatina. PALABRAS CLAVE: insuficiencia velofaríngea, paladar hendido, labio y paladar hendido. HERNÁNDEZ, R. M. P.; SÁNCHEZ, T. B.; DE LA FUENTE, H. J.; VILLANUEVA, V. M. C.; DÍAZ, A. J. A.; VILAR, P. G. & TENORIO, R. F. Análisis de patrones de cierre velofaríngeo en pacientes con labio y paladar hendido. Int. J. Odontostomat., 9(3):385-391, 2015.

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Insuficiencia velofaríngea en cirugía adenoamigdalina

Cited by 2 publications

References 4 publications

3D Printing Materials for Soft Robotics

3D Printing Materials for Soft Robotics

Análisis de Patrones de Cierre Velofaríngeo en Pacientes con Labio y Paladar Hendido

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