Interactive Computational Medical Device Deployments within Virtual Reality

2020 ◽  
Author(s):  
Alex J. Deakyne ◽  
Paul A. Iaizzo
Keyword(s):  
Virtual Reality ◽  
Medical Device ◽  
Medical Devices ◽  
3D Modeling ◽  
3D Models ◽  
Medical Field ◽  
Cardiac Device ◽  
Anatomical Features ◽  
Device Optimization ◽  
The Times

Abstract 3D modeling of anatomical features and medical devices are being used at increasing rates within the medical field. These 3D models allow for a wide variety of uses, such as educational or for medical device optimization. Next steps in such utilization are to perform computational and simulated device deployments within unique human anatomies. Such computational deployments have and will yield new perspectives and understandings relative to how given devices fit within the varied anatomies of varied patient populations. While these simulated device deployments offer many benefits, they are often time consuming to both develop and perform. Here, we present new functionalities to perform computational cardiac device deployments within virtual reality (VR). This functionality offers increased control of where the device is to be deployed, reducing the times required to perform computational device deployments in unique anatomical models.

scholarly journals Procesos de documentación arqueológica y generación de modelos virtuales

2011 ◽  
Vol 2 (3) ◽  
pp. 65 ◽  
Author(s):  
Josep Blasco Senabre ◽  
Sebastián Varea ◽  
Fernando Cotino Vila ◽  
Albert Ribera Lacomba ◽  
Oreto García Puchol
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
3D Models ◽  
Present Communication ◽  
Archaeological Excavation ◽  
Great Range ◽  
The Times

<p>In the present communication we offer some examples that illustrate the methodological corpus applied by our company (Global S.L) in relation with the photogrametrical documentation and the virtual reality in the field of the archaeology. The use of these technologies of computerized documentation offers a great range of possibilities for the graphic documentation of an archaeological excavation, allowing to generate planimetry and pertinent sections and to improve the times in the process of obtaining of information. The possibility of producing 3D models supposes an essential addition to show in a three –dimensional way the current condition of the monument, as well as for its virtual recreation by means of the technologies of virtual reality and increased reality.</p>

Using Computational Modeling Derived From Micro CT Scanning for the Post-Implant Analyses of Various Cardiac Devices

2020 ◽  
Author(s):  
Thomas Valenzuela ◽  
Jorge Zhingre Sanchez ◽  
Mikayle Holm ◽  
Tinen Iles ◽  
Paul Iaizzo
Keyword(s):  
High Resolution ◽  
Medical Device ◽  
Medical Devices ◽  
Ct Scanning ◽  
3D Models ◽  
Micro Ct ◽  
Ct Scanner ◽  
Cardiac Devices ◽  
High Resolution Models ◽  
Implanted Devices

Abstract There are few medical devices currently utilized that have not had, at the very least, a second iteration. Medical device companies continually strive to improve their product to make it the best on the market. Medical devices are often optimized by defining the size of the device, making it more efficient and/or improving the device to tissue interface. Using the capabilities of the Visible Heart® Laboratories various cardiac devices can be implanted in reanimated swine and human hearts for the assessment of the various aforementioned parameters. After the implantation of these devices and assessment in functional anatomies, specimens were perfusion-fixed and then a micro-CT scanner was utilized to take high-resolution scans of the resultant device and tissue interfaces. These scans are used to generate high-resolution (∼20 microns) 3D models of the numerous implanted devices, measurement analyses, device simulations, and the creation of virtual reality scenes. All can then be used for detailed visual analyses. These abilities to render high-resolution models will allow medical device designers to closely evaluate their designs, in order to optimize their next iterations.

A Semi-Automatic Modeling System for Quick Generation of Large Virtual Reality Models

2011 ◽  
Author(s):  
Gabriele Guidi ◽  
Laura Loredana Micoli
Keyword(s):  
Virtual Reality ◽  
Data Base ◽  
3D Modeling ◽  
3D Models ◽  
Integrated System ◽  
Standard Process ◽  
Automatic Modeling ◽  
Point Of Sale

In the last few years virtual reality applications have started to be introduced in the wide retail field, with immersive 3D models used as a tool for orienting strategic, logistic and marketing choices. However, in the aforementioned applications, the digitalization of the entire Point Of Sale (POS) has not yet been implemented as a standard process for the complexity related to the generation of thousands of texturized 3D models of single products. This work presents an original integrated system for the semi-automatic 3D modeling of simple 3D packages according to a pre-defined classification of shapes, and their management in a data base. Such approach allows to dramatically minimize the modeling time needed for each model and, therefore, of the whole shop, making economically sustainable the reverse modeling of commercial environments. A key advantage of the implemented process is that it can be used by operators non expert in 3D modeling and can be reapplied in several different fields.

scholarly journals Immersive Virtual Reality Experience of Historical Events Using Haptics and Locomotion Simulation

2021 ◽  
Vol 11 (24) ◽  
pp. 11613
Author(s):  
Agapi Chrysanthakopoulou ◽  
Konstantinos Kalatzis ◽  
Konstantinos Moustakas
Keyword(s):  
Virtual Reality ◽  
Cultural Heritage ◽  
3D Modeling ◽  
3D Models ◽  
Immersive Virtual Reality ◽  
Historical Events ◽  
Sense Of Presence ◽  
3D Environment ◽  
Visual Realism ◽  
Initial Results

Virtual reality (VR) and 3D modeling technologies have become increasingly powerful tools for multiple fields, such as education, architecture, and cultural heritage. Museums are no longer places for only placing and exhibiting collections and artworks. They use such technologies to offer a new way of communicating art and history with their visitors. In this paper, we present the initial results of a proposed workflow towards highlighting and interpreting a historic event with the use of an immersive and interactive VR experience and the utilization of multiple senses of the user. Using a treadmill for navigating and haptic gloves for interacting with the environment, combined with the detailed 3D models, deepens the sense of immersion. The results of our study show that engaging multiple senses and visual manipulation in an immersive 3D environment can effectively enhance the perception of visual realism and evoke a stronger sense of presence, amplifying the educational and informative experience in a museum.

Inevitable Influences: AI-Based Medical Devices at the Intersection of Medical Devices Regulation and the Proposal for AI Regulation

2021 ◽  
pp. 1-18
Author(s):  
Sofia Palmieri ◽  
Paulien Walraet ◽  
Tom Goffin
Keyword(s):  
Artificial Intelligence ◽  
European Commission ◽  
Medical Device ◽  
Medical Devices ◽  
Medical Field ◽  
Medical Device Manufacturers ◽  
Regulatory Landscape ◽  
Medical Device Regulation ◽  
Regulatory Intervention

Abstract In recent years, the use of Artificial Intelligence (AI) in the medical field has attracted increased attention. Due to their impressive advantages, AI systems offer excellent prospects for medical device manufacturers using these systems to upgrade their products. Such AI-based medical devices are already subject to partial regulation within the lines of Medical device regulation 745/2017. However, following the proposal for a regulation on artificial intelligence published by the European Commission, the regulatory landscape for these devices has partially changed. This article aims to clarify the influences that this regulatory intervention by the European Commission brings to the path towards the use and marketing of AI-based medical devices.

Integration and Conversion of 3D Models from 3DS to OpenFlight

2011 ◽  
Vol 88-89 ◽  
pp. 559-563
Author(s):  
Yuan Luo ◽  
Ai Zhu Ren
Keyword(s):  
Virtual Reality ◽  
3D Modeling ◽  
Education System ◽  
3D Models ◽  
Transportation Safety ◽  
Safety Education ◽  
Virtual Reality Environment ◽  
Format Conversion ◽  
Triangle Meshes

OpenFlight is one of the standard formats in Virtual Reality applications. But it only provides crude 3D modeling. Therefore most of the users prefer to build up 3D models in 3DS Max software, while the models created in 3DS MAX could not be used directly in a virtual reality environment. This paper proposed a solution for format conversion between 3DS Max and OpenFlight. Among others it focused on combining triangle meshes in 3DS format into entire faces. A program followed the method proved its availability. The application of this program in a transportation safety education system showed that it has good effects.

scholarly journals Critical Elements of the Medical Device Administration

2017 ◽  
Vol 2 (1) ◽  
pp. 1-5
Author(s):  
Naif B. Alsharari
Keyword(s):  
Medical Device ◽  
Medical Devices ◽  
Medical Field ◽  
Critical Elements ◽  
Administrative Program ◽  
Hardware Industry

The vast growth of medical devices in recent years in both innovation and its overall marketplace has profoundly impacted the medical field. This paper analyzes the critical elements of the medical device administrative program and researches the impacts of the influences of the demonstrative imaging hardware industry. The outcomes have indicated that the medical device direction has not impacted or influenced rivalry or development inside the various classes in this industry. This paper contains recommendations comprising of selected strategies for control that separate among levels of potential hazards to purchasers in which the objective of achieving buyer assurance can be accomplished with fewer undesirable consequences for the controlled business.

scholarly journals Application of 3D-Modeling in Medicine in Preparation for 3D-Printing

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Nataliya Yuriivna Onykiyenko
Keyword(s):  
Image Segmentation ◽  
Comparative Analysis ◽  
3D Printing ◽  
3D Modeling ◽  
Mesh Refinement ◽  
3D Models ◽  
Medical Field ◽  
Segmented Model ◽  
Polygon Mesh ◽  
Modeling Software

3D-modeling in the medical field can be used to create medical models (eg, tissues and human organs) using 3D-printing or used for digital 3D visualization of the necessary structures. Medical 3D-printing is used when the work on prostheses that should perfectly match the patient's anatomy is needed. In addition, thanks to 3D-modeling technology, it is possible to develop peculiar medical tools. It is also possible to perform trial surgeries on 3D-models before the actual operation. There is special software for creating medical 3D-models for further printing. The purpose of this work is to determine the functions of 3D-modeling in preparation for 3D-printing in the process of creating medical models and comparative analysis of software for 3D-modeling used in the medical field. There is a common workflow that can be used to convert volumetric medical imaging data (created by computer tomography (CT), or other imaging techniques) into physical models printed on a 3D-printer. This process is divided into three stages: image segmentation, polygon mesh refinement, and 3D-printing. 3D-modeling programs are used at the stage of polygon mesh refinement. They allow almost unlimited manipulations to refine the mesh to make the model printable. The main manipulations for post-processing of a segmented model using 3D-modeling are: 1) reparation - correction of errors and discrepancies that sometimes occur in the process of segmentation and images export; 2) smoothing - correction of errors that occur during segmentation due to inappropriate resolution of the original medical image via softening by smoothing the surface of the model; 3) adding elements - combining a segmented model with other structures or removing unnecessary parts from the segmentation. As a result of a comparative analysis of 3D-modeling software used in the medical field, it was found that for 3D-modeling can be used software specifically designed for medical 3D-modeling and regular 3D-modeling software. When using regular software, you need third-party software to get the correct model file format. The choice of software depends on the goal: to work with implants and create patient-specific devices, it is possible to use specially designed programs for these purposes, such as Within Medical and Medical Design Studio; if high accuracy is required, it is possible to use D2P created for working with DICOM-images at the image segmentation stage; to achieve fast results, when maintaining of maximum accuracy is not needed, a mobile version of the software, such as Ossa 3D, can be used; common 3D-modeling software, such as Cinema 4D and Blender, can be used to develop peculiar tools and medical equipment.

Sign in / Sign up

Export Citation Format

Share Document