Saša Ćuković

ETH Zurich | ETH Zürich · Institute for Biomechanics

Adolescent idiopathic scoliosis (AIS) is a prevalent musculoskeletal disorder that causes abnormal spinal deformities. The early screening of children and adolescents is crucial to identify and prevent the further progression of AIS. In clinical examinations, scoliometers are often used to noninvasively estimate the primary Cobb angle, and optical...

This book is a part of the series of CAD tutorial books that presents the basic and advanced characteristics and working possibilities of modern computer aided design software solution CATIA v5. This tutorial book is intended to be used by students from faculties with a mechanical or industrial engineering profile, but also by design engineers fro...

Stenosis of the cerebral aqueduct (CA) is featured in many studies relating to elevated intracranial cerebral pressures. It also presents a challenging situation to clinicians. Compressive forces play a lead role in pathological situations such as the presence of tumors and hence can cause obstruction to the flow of cerebrospinal fluid (CSF). Becau...

The term Biomechanics can be interpreted as, studying how the human body, especially the human foot, moves within the earth’s gravitational settings. The locomotive displacement of the lower limbs resulting in the forward movement of the body is termed as gait. Human gait is significantly affected by the kinetic and kinematic factors of various ind...

Background: Stenosis of cerebral aqueduct (CA) is featured in many studies related to elevated intracranial cerebral pressures (ICP). It also presents a challenging situation to clinicians. Compressive forces play a lead role in pathological situations like tumor presence and hence can cause obstruction to the flow of cerebrospinal fluid (CSF). Due...

Cartea are un pronunţat caracter didactic – aplicativ şi pune accentul pe principalele aspecte ale proiectării asistate de calculator, pe diversele metode ale modelării pieselor şi ansamblurilor, pe modalităţile de realizare a desenelor de execuţie, dar şi pe tehnicile moderne de proiectare parametrizată, programare şi scripting. Aplicaţiile fac re...

Adolescent Idiopathic Scoliosis (AIS) is lifetime disorder indicated by the abnormal spinal curvature, and it is usually detected in children and adolescents. Traditional radiographic assessment of scoliosis is time-consuming and unreliable due to high variability in images and manual interpretation. Vertebrae localization and centerline extraction...

This paper describes new optical method and software tool developed to extract important intrinsic indicators of adolescent idiopathic scoliosis (AIS) non-invasively. Using optical digitalization, we scanned dorsal surfaces of 372 patients (141 males and 231 females) in a clinical environment from 2014–2017. Patient datasets were processed using ou...

This paper presents a part of the results related to our development of methodologyfor the diagnosis of spinal deformities. It is based on the application of methods of surface topography toreduced exposure toX-rays for patients suffering from idiopathic progressive scoliosis, aimed at the elimination of radiation. The developedapproach is based on...

The paper presents results of experimental measurements on the main precision grades for a cylindrical spur gearing, from the assembly of a hydraulic pump integrated in a hydrostatic driving system. For the components of this assembly, the main stages of the design, material characteristics, constructive, precision and functional parameters that de...

Due to our previous experience in AR development, with this research project we propose to study how Augmented Reality (AR) can be adopted by an industrial partner and which are the major outcomes from which a company may benefit. For this purpose, we partnered with a forward-looking company willing to embrace the idea of implementing new technolog...

In this paper we presented a non-invasive computational solution for optical 3D diagnosis of adolescent idiopathic scoliosis (AIS), and analysis of lordotic and kyphotic postural indicators of dorsal surface and their correlations in sagittal plane. We conducted a retrospective analysis of 372 subjects (141 males and 231 females) with major thoraci...

Background and objective: Conventional information systems are built on top of a relational database. The main weakness of these systems is impossibility to define stable data schema ahead when the knowledge of the system is evolving and dynamic. The widely accepted alternatives to relational databases are ontologies that can be used for designing...

This paper presents some of the recently developed solutions for non-invasive scoliosis assessment and diagnosis. Scoliosis is a complex 3D deformity that affects younger population especially in early adolescence, usually without a known reason. The main standard in traditional scoliosis evaluation is single or biplanar radiography in frontal and...

This paper presents an overview of an improved solution for an existing micropump model and, also, of the materials recommended to be used in the current stage of the prototype research. This micropump is provided with a closed system for driving and pumping the fluid, obtained by a special constructive solution, where the rotation of the motor sha...

Idiopathic spinal disorders, such as scoliosis, are usually quantified from the X-ray films in sagittal and frontal plane. In this paper we consider analysis of the spinal deformity profile in adolescent patients suffering from idiopathic scoliosis (AIS) with innovative and non-ionizing method. We performed a 3D optical scanning of 372 patients wit...

This paper presents preliminary research results on innovative and adaptive redesign of a magnetic drive micropump with helical gears. We have illustrated some issues of a gears micropump and particularly its worn components caused by the running process in its hydraulic installation. The design procedure and all the ideas involved in the research...

In this paper we describe two optical methods to estimate Lenke type of scoliosis. To perform accurate determination of the Lenke type, four radiographs of the spine are necessary (standing frontal and sagittal) as well as right and left side-bending). Thus, it is not hard to conclude that for conventional determination of the Lenke type of scolios...

The paper presents a framework for technology enhanced education (TEE) in orthopaedics aimed at employment of ubiquitous information and communication technology (ICT) and digital technologies in order to compensate for an unaffordable learning environment. On the other side, the concept involves both (bio)engineers, ICT specialists, and orthopaedi...

Three-dimensional deformity and axial rotation of vertebrae or a section of the vertebral column are considered risk factors for scoliosis development, but also predictors of curve progression, prognosis, and treatment outcomes. Clinically, measurement of axial rotation of vertebrae is performed manually from 2D anterior-posterior radiographs by e...

This paper presents some of the research results on a fundamental and applicative procedures regarding the integrated intelligent conception of a Romanian series of hydraulic gear pumps. Following the analysis of the pump series in the manufacturing process, the requirement for a modernized parametric design of this product has been identified. Thu...

This paper presents an example of applicability of the STEP standard in a design process of a new specific sub-assembly product in the heavy machinery industry in Serbia. We tested the interoperability of the STEP standard in several CAD systems and their compatibility and quality of conversion process. Results obtained in performed experiments dem...

This paper compares the exergy efficiency of panel heating system using different energy sources such as natural gas and geothermal heat pump. The analysis is performed on a CAD model of the family building, located in Kragujevac, Serbia with different heating systems such as floor panels, wall panels, ceiling panels and floor-ceiling panels. The o...

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Last five decades witnessed remarkable developments in linear control systems and thus problems in this subject has been largely resolved. The scope of the present paper is beyond linear solutions. Modern technology demands sophisticated control laws to meet stringent design specifications thus highlighting the increasingly conspicuous position of...

This paper addresses methodological and applied issues to design spur gear pumps. Based on the requirements raised by a Romanian production partner, the overall objective of this research is to identify several design alternatives and to propose improved construction solutions, which are strongly backed by mathematical validation and finite element...

In medicine, the surgical instruments are realized using a variety of stainless steel, such as curved elevators. The quality and the price of surgical instruments differ in function of the manufacturing processes and the material used. This paper, presents a prototype of elevator, manufactured using two types of additive manufacturing process Direc...

This paper presents Industrial Robotics Simulation Design Planning and Optimization platform named IRoSim, which is based on SolidWorks Application Programming Interface (API) to offer an intuitive and convertible environment for designing and simulating robotized tasks. The core idea is to integrate features of mechanical CAD and robotics CAD into...

Augmented Reality (AR) technology to support learning activities becomes a trend in education and effective teaching aids for engineering courses. This paper presents initial results of a project aimed to transform the current learning process of Computer Aided Manufacturing (CAM) by designing and implementing an interactive AR learning and simulat...

Current instruction methods of teaching computer aided design (CAD) technologies rely heavily on traditional pedagogical techniques such as in-class and in-lab instructions and course work. Augmented Reality (AR), as a key technology of concept Industry 4.0 to support learning activities becomes a trend in education and AR-based methods are proven...

The paper presents theoretical and applicative aspects concerning the construction, machining technology analysis of a spur gear pump body. For the machining process it is chosen a numerically controlled milling machine tool. The part analysed represents the main component of a hydraulic pump from the current production of a Romanian company. From...

Bioengineering of the Scoliosis systematically describes complex issues of development, diagnostics and monitoring of adolescent spinal deformities, aiming at scoliosis. It is the result of joint research results of the teams from University of Kragujevac, Serbia (Faculty of Engineering, Faculty of Technical Sciences in Cacak and Faculty of Medical...

CATIA - Part Design, Assembly Design, Drafting, CAD.

This paper presents IRoSim: Industrial Robotics Simulation Design Planning and Optimization platform which we developed based on SolidWorks API. The main objective is to integrate features from mechanical and robotics CAD software into the same platform in order to facilitate the development process through a friendly interaction interface. The pla...

INFORMATION SYSTEM FOR 3D DIAGNOSTICS AND MONITORING OF SCOLIOSIS describes the process of designing web-based information system for 3D diagnostics and monitoring of scoliosis - ScolioMedIS. Creation of evidence of the visual examination of patients with scoliosis in the information system ScolioMedIS is performing using an e-form, based on an inn...

Many projects and researches in the field of remanufacturing of specialized lathes are presented in the specialized literature. In the process of design for remanufacturing, a great number of solutions contain different aspects and data important to consider. The paper presents important stages of theoretical and applied research regarding the mode...

In this article, we present a new methodology to model spinal deformities in patients with idiopathic scoliosis. This approach uses a5th degree B-spline to characterize the deformities by taking central spinal line as a reference for positioning and orienting vertebrae.Generic 3D model of the spine and 3D optical scans of dorsal surfaces were used...

This paper presents an applicative methodology of parametric computer aided design using the CATIA v5 software to model and assembly a modular fixture device. The device is then used in the orientation and clamping a part of type casing cover which has a face machined by milling. Having a constructive solution of the fixture device, the next step i...

In this article we describe a 3D methodology to characterize dorsal surface for the diagnosis of idiopathic scoliosis and its implementation. This characterization is based on the set of external and internal parameters recommended by SOSORT consortium. Parameterized 3D model of the spine and 3D optical scans of dorsal surfaces are used to generate...

the objective of this paper is to demonstrate creation process of the application ontology of scoliosis OBR-Scolio using the OBR reference ontology, which is spread over anatomy, physiology and pathology domains. Since OBR reference ontology exists only as preliminary classification and does not possess taxonomy of pathological structure, we create...

the objective of this paper is to demonstrate creation process of the application ontology of scoliosis OBR-Scolio using the OBR reference ontology, which is spread over anatomy, physiology and pathology domains. Since OBR reference ontology exists only as preliminary classification and does not possess taxonomy of pathological structure, we create...

In this article, we present a new methodology to model spinal deformities in patients with idiopathic scoliosis. This approach uses a 5th degree B-spline to characterize the deformities by taking central spinal line as a reference for positioning and orienting vertebrae. Generic 3D model of the spine and 3D optical scans of dorsal surfaces were use...

During the operation of the rolling stock, the contact surfaces of the wheels and rail become worn. The wear can lead to unwanted changes of the wheel and rail profile and, consequently, to changes in the properties of the contact surfaces which can direct to instability in the movement of vehicles. Therefore, the maintenance and repair of the roll...

This paper presents the application of knowledgeware technologies and CAD systems in the field of 3D non-invasive diagnosis of idiopathic spinal deformity, primarily scoliosis. Automation of the process of generating key diagnostic indicators and a 3D model of the spine, based on digitized dorsal surfaces of patients, is achieved by implementing VB...

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This paper presents an applicative methodology of parametric computer aided design using the CATIA v5 software to model and assembly a modular fixture device. The device is then used in the orientation and clamping a part of type casing cover which has a face machined by milling. The next step is to simulate a milling process through a FEM analysis...

In this paper we present novel methods and algorithms for augmenting a foot 3D model in real-time. By overlaying reconstructed anatomical contents onto user's field of view via an augmented reality visualization platform, the virtual Biomedical Computer Aid Design (BioCAD) objects, appear geo-referenced to the real environment, help physicians and/...

Although intensively investigated, the procedures for assessment and monitoring of scoliosis are still a subject of controversies. The aim of this study was to assess validity and reliability of a number of physiotherapeutic measurements that could be used for clinical monitoring of scoliosis. Fifteen healthy (symmetric) subjects were subjected to...