Tecnologia de accionamiento compacta que hace mvil la unidad TC de alta tecnologa

Control de movimiento basado en PC y EtherCAT para radiografas intraoperatorias

Stefan Ziegler, RR. PP. de gestin editorial de Beckhoff Automation27/10/2022

The Austrian medical technology company medPhoton presents its image processing solution for radiotherapy for the first time in 2014. This Imaging Ring is now also available in mobile version, which allows you to see the interior of the body in the surgery rooms before, after and incluso durante una operacin. The PC and EtherCAT technology of Beckhoff is used to reach the desired angles and the alignment of the source of X-rays with the patient with millimeter precision.

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Beckhoff’s compact drive technology in the mobile image processing robot Imaging Ring m/Loop-X made it possible to eliminate three distribution cabinets by device thanks to the installation of complete automation technology in arms, legs and supports del Imaging Ring. Photo: Beckhoff.

The company medPhoton GmbH was founded by Heinz Deutschmann in 2012 as a branch of the Paracelsus Medical Private University (Universidad Mdica privada de Paracelso) and the state clinics of Salzburg (SALK). Junto con lo que initially era un pequeo grupo de tcnicos sanitarios y desarrolladores de software, este distinguido sico buscaba crear una navaja suiza de las imgenes de diagnsticoy lanzarla al mercado cuando empez a trabajar por cuenta propia. Currently, around 35 universally applicable devices are built every year. Our Imaging Ring is a high-resolution computer tomograph that not only offers images in two and three dimensions, but also allows for fluoroscopy with pulsed X-rays. . This type of functionality is ideal for tasks such as the capture and digitization of intraoperative anatomical changes, explains Michael Hubauer-Brenner, executive director of operations at medPhoton, describing a solution that can be integrated into a wide variety of treatment processes.

En oncologist, la innovation de Salzburgo muestra su fortaleza a la hora de visualizer tumors y oferer irradiacin directed, while its surgical applications include la facilitacin de una orientacin en 3D para los rujanos. El origen de nuestra empresa proviene del campo de la radiotherapy, en el que nuestros dispositivos se montan habitualmente en el cecho o en la camilla de tratamiento. These environments offer sufficient space for two or three distribution cabinets, but the situation is totally different in computer-assisted surgery, Andreas Schippani, executive financial director at medPhoton, in reference to the usual lack of space in surgeons . With this in mind, we are working to integrate the complete automation technology in the arms, legs and supports of the Imaging Rings of the last generation of TC. El diseo se vio facilitado por la compacidad de los componentes de Beckhoff utilizados y una architecture de sistemas decentralizada con distribuido control e intelligencia de accionamiento.

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Andreas Schippani (retratado aqu junto algunos de los terminales EtherCAT de instalacin compacta), director ejecutivo financiero en medPhoton, valora mucho el facto de que Beckhoff no solo ofrezca telefnica asistencia, sino que tambin cuente con asistencia in situ competent cuando es necesario. Photo: Beckhoff.

Flexibility of movement and image

El robot mvil de processing de imgenes Imaging Ring m/Loop-X se desarroll en estrecha colaboracin con Brainlab, especialista lder a nivel global en tecnologa mdica basada en software. Mide nicamente 182 x 87 x 189 cm y ofrece un rango de movimiento exceptional. Se sostenie sobre dos patas, cada una de las cuales disponé de dos ruedas que pueden rotar de forma independiente en diferentes direcciónes. This is what allows you to move it to the front, back and diagonally, and perform rotations around your own center of gravity or any other point on the island, and even change it from one to the other in battery mode, all in the form completely autonomous. Todo lo que el operator debe hacer es introduce los comandos de navegacin corresponsible en la control tablet, explains Armin Schlattau, jefe de desarrollo de desarrollo de automatizacin en medPhoton.

Tambin es importante resaltar que el robot ofrece la mxima flexibility no solo en trminos de mobilidade, sino tambin de imagen. The radial disposition of the source of radiation and the detector, combined with the simultaneous but independent movement, ofrece numerous vantageas entre las que se include la capacidad de alcansar un campo visual tridimensional especially large y la possibility de obtener imgenes no isocntricas. This means that the patients do not have to be in the center of the opening during the radiograph, because the system positions the scan region completely automatically in the pertinent area, explains Andreas Schippani. His compaero, Armin Schlattau, says: Although the area of ​​the detector is small, we can generate dynamic panoramic images from different angles by continuously moving the individual paths at different speeds. La interaccin entre el total de los 26 ejes se orchestra mediante un PC industrial ultracompacto C6015 con una CPU quad-core Intel Atom. Sus medidas de tan solo 82 x 82 x 40 mm significan que requiere un espacio de instalatin mnimo, lo que lo hace perfecto para el concepto de deseo del robot de procesosación de imagenes, segn medPhoton. On the one hand, the industrial PC coordinates all the tasks of movement control and, on the other hand, it functions as a TCP/IP server that establishes the connection with the superior level data processing computer via the TwinCAT ADS Communication Library.

Imgenes de rayos X tridimensionales con trajectories controlled

Through the use of the functionality of the left discs of TwinCAT NC Camming, medPhoton generates laser projections in the form of lines, crosses or rectangles on the patient as a aid for optical positioning for all available image processing processes. Esta funcin establece relaciones no lineales entre los ejes maestros y esclavos. Para calcular una imagen 3D volumtrica from partir de cientos de proyecciones en 2D, necesitamos saber exactly at qu momento y desde qu ngulo se tomaron las diferentes images. Cualquier error tendra unas consequencias fatales ya que, al fin y al cabo, estamos hablando de intervenciones mdicas, resalta Michael Hubauer-Brenner con respecte a la importancia de las seales exactas con registro de tiempo. We only depend on the precise information on the position, but we also measure the time that we apply X-rays from each direction with a precision of nanoseconds, says Armin Schlattau, describing the process that uses equipment such as the EL1252 digital entry terminal with the function of marca de tiempo XFC

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Balzs Bezeczky, jefe de la oficina de ventas de Beckhoff en Vienna; el fundador de medPhoton, Heinz Deutschmann; and Michael Hubauer-Brenner, director ejecutivo de operaciones en medPhoton (from left to right). Photo: Beckhoff. Gran variatedo de productos, un nico puederador

In the image processing robot, more than 10 different types of Beckhoff terminals have been installed, including TwinSAFE components such as EL1904 or EL6910, as well as step-by-step motor terminals EL7037, and servomotor terminals EL7221-9014 with nico cable technology (OCT por sus siglas en ingls). When we were looking for a supplier of control technology for the mobile version of the Imaging Ring at the Smart Automation fair in Linz in May 2017, Beckhoff impressed us from the first moment with its wide variety of products available in compact format, recalls Armin Schlattau. De acuerdo con el ingeniero de desarrollo de automatizacin, los principales arguments in favor del specialist en automatizacin de Verl incluan el terminal de motor paso a paso con codificador incremental, la integratin de un servoamplificador completo dentro de un terminal EtherCAT que mide tan solo 12 mm de ancho y la agrupacin de una fuente de alimentacin y un sistema de retroalimentacin digital en tan solo un nico cable de connexin del motor para los servomotores AM8121.

At the time that we increased the complexity and the performance of our system, we were also able to reduce the space necessary for automation technology to a tenth, affirms Michael Hubauer-Brenner, satisfied with the results of a productive collaboration that has surpassed all expectations hasta la fecha. Pero parece que la nea de meta todava est lejos: Sin duda habr nuevos desarrollos para nuestros Imaging Rings y seguiremos esperando aportaciones creativas por parte de Beckhoff, concludes Andreas Schippani. Balzs Bezeczky, head of Beckhoff’s sales office in Vienna, responds by raising an idea of ​​his own initial optimization: With our new ELM72xx servomotor terminals in metal casings, it will be possible to achieve greater compactness in terms of drive technology. Es ms, el modelo ELM72xx-9018 hace que sea posible mapar un paquete funcional Safe Motion completo con opciones de velocidad limitada de seguridad y posicin limitada de seguridad. Su invitacin a una prueba con el modelo ELM72x2 de dos channels ya ha sido aceptada.

Companies or entities related

Beckhoff Automation, SA


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