scholarly journals Virtual Reality Simulator for Training on Surgery Ergonomics Skills

2021 ◽  
Author(s):  
Hind Alsharif ◽  
◽  
Wadee Alhalabi ◽  
Khalid Bajunaid ◽  
Richard Satava ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Spine Surgery ◽  
Virtual Reality Simulator ◽  
Training Simulator ◽  
Head Mounted Display ◽  
Training Approach ◽  
Vr Training ◽  
Head Positions ◽  
Neurosurgical Education ◽  
Vr Simulator

This work focuses on ergonomics skills based on Virtual Reality (VR) training simulator for spine surgery. The proposed system used the Head Mounted Display (HMD) device for monitoring and data collection. The aim of the project was to provide a training approach for residents that would enable them to acquire the proper ergonomic skills needed while performing spine surgery. A VR training simulator has been designed and implemented to measure two ergonomic skills required that need to be maintained during any surgery. The two components were neck’s angle and table’s height. The experiments showed that the users are usually focused on their work and tend to pay less attention to their body’s position and movements. This can result in a wrong ergonomics setup, which leads to musculoskeletal pain. Thus, the users (residents) need to be trained to have good ergonomics positions. The proposed system measured this using a specific metric that collected head positions, angles, elbow height, and other parameters. The designed model was a VR simulator for neurosurgical education in particular; however, it might be good for some other similar surgeries. The study concluded that incorporating simulations into residents’ training and simulated surgeries can strengthen the surgeons’ skills and outcomes. As a result, both residents and expert surgeons can benefit from the use of the developed model.

scholarly journals Virtual-Reality Simulator System for Double Interventional Cardiac Catheterization Using Fractional-Order Vascular Access Tracker and Haptic Force Producer

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Guan-Chun Chen ◽  
Chia-Hung Lin ◽  
Chien-Ming Li ◽  
Kai-Sheng Hsieh ◽  
Yi-Chun Du ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Virtual Reality ◽  
Fractional Order ◽  
Cardiac Catheterization ◽  
Vascular Access ◽  
Vessel Wall ◽  
Virtual Reality Simulator ◽  
Pigtail Catheter ◽  
Frictional Feedback ◽  
Vr Simulator

This study proposes virtual-reality (VR) simulator system for double interventional cardiac catheterization (ICC) using fractional-order vascular access tracker and haptic force producer. An endoscope or a catheter for diagnosis and surgery of cardiovascular disease has been commonly used in minimally invasive surgery. It needs specific skills and experiences for young surgeons or postgraduate year (PGY) students to operate a Berman catheter and a pigtail catheter in the inside of the human body and requires avoiding damaging vessels. To improve the training in inserting catheters, a double-catheter mechanism is designed for the ICC procedures. A fractional-order vascular access tracker is used to trace the senior surgeons’ consoled trajectories and transmit the frictional feedback and visual feedback during the insertion of catheters. Based on the clinical feeling through the aortic arch, vein into the ventricle, or tortuous blood vessels, haptic force producer is used to mock the elasticity of the vessel wall using voice coil motors (VCMs). The VR establishment with surgeons’ consoled vessel trajectories and hand feeling is achieved, and the experimental results show the effectiveness for the double ICC procedures.

scholarly journals The Influence of Virtual Reality Head-Mounted Displays on Balance Outcomes and Training Paradigms: A Systematic Review

2021 ◽  
Vol 2 ◽  
Author(s):  
Pooya Soltani ◽  
Renato Andrade
Keyword(s):  
Older Adults ◽  
Virtual Reality ◽  
Assessment Tool ◽  
Poor Quality ◽  
Risk Of Bias ◽  
Display Type ◽  
Functional Balance ◽  
Head Mounted Display ◽  
Vr Training ◽  
And Training

Background: Falls are the leading causes of (non)fatal injuries in older adults. Recent research has developed interventions that aim to improve balance in older adults using virtual reality (VR).Purpose: We aimed to investigate the validity, reliability, safety, feasibility, and efficacy of head mounted display (HMD) systems for assessing and training balance in older adults.Methods: We searched EBSCOhost, Scopus, Web of Science, and PubMed databases until 1 September 2020 to find studies that used HMD systems for assessing or training balance. The methodological quality was assessed using a modified version of Downs and Black. We also appraised the risk of bias using Risk of Bias Assessment tool for Non-randomized Studies (RoBANS).Results: A total of 19 articles (637 participants) were included for review. Despite heterogenous age ranges and clinical conditions across studies, VR HMD systems were valid to assess balance and could be useful for fall prevention and for improving postural control and gait patterns. These systems also have the capacity to differentiate healthy and balance-impaired individuals. During VR versions of traditional balance tests, older adults generally acquire a cautious behavior and take more time to complete the tasks.Conclusion: VR HMD systems can offer ecologically valid scenarios to assess and train functional balance and can be used alone or in addition to other interventions. New norms and protocols should be defined according to participants' age, health status, and severity of their illness when using VR HMD systems for balance assessment and training. For safe and feasible training, attention must be given to display type, VR elements and scenarios, duration of exposure, and system usability. Due to high risk of bias and overall poor quality of the studies, further research is needed on the effectiveness of HMD VR training in older adults.

Establishing objective benchmarks in robotic virtual reality simulation at the level of a competent surgeon using the RobotiX Mentor simulator

2018 ◽  
Vol 94 (1111) ◽  
pp. 270-277 ◽  
Author(s):  
William Watkinson ◽  
Nicholas Raison ◽  
Takashige Abe ◽  
Patrick Harrison ◽  
Shamim Khan ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Observational Study ◽  
Retrospective Observational Study ◽  
Training Curriculum ◽  
King's College ◽  
Multiple Data ◽  
Vr Training ◽  
The Mean ◽  
Robotic Surgical Training ◽  
Vr Simulator

BackgroundTo establish objective benchmarks at the level of a competent robotic surgeon across different exercises and metrics for the RobotiX Mentor virtual reality (VR) simulator suitable for use within a robotic surgical training curriculum.MethodsThis retrospective observational study analysed results from multiple data sources, all of which used the RobotiX Mentor VR simulator. 123 participants with varying experience from novice to expert completed the exercises. Competency was established as the 25th centile of the mean advanced intermediate score. Three basic skill exercises and two advanced skill exercises were used.SettingKing’s College London.Participants84 Novice, 26 beginner intermediates, 9 advanced intermediates and 4 experts were used in this retrospective observational study.ResultsObjective benchmarks derived from the 25th centile of the mean scores of the advanced intermediates provided suitably challenging yet also achievable targets for training surgeons. The disparity in scores was greatest for the advanced exercises. Novice surgeons are able to achieve the benchmarks across all exercises in the majority of metrics.ConclusionWe have successfully created this proof-of-concept study, which requires validation in a larger cohort. Objective benchmarks obtained from the 25th centile of the mean scores of advanced intermediates provide clinically relevant benchmarks at the standard of a competent robotic surgeon that are challenging yet also attainable. That can be used within a VR training curriculum allowing participants to track and monitor their progress in a structured and progressional manner through five exercises. Providing clearly defined targets, ensuring that a universal training standard has been achieved across training surgeons.

Pros and Cons of A VR-based Flight Training Simulator; Empirical Evaluations by Student and Instructor Pilots

2020 ◽  
Vol 64 (1) ◽  
pp. 193-197
Author(s):  
Chang-Geun Oh
Keyword(s):  
Virtual Reality ◽  
Multiple Criteria ◽  
Flight Training ◽  
Flight Simulator ◽  
Training Simulator ◽  
Pros And Cons ◽  
Aircraft Pilots ◽  
Vr Simulator ◽  
Better Than

A medium-fidelity virtual reality (VR) flight simulator was developed to evaluate how aircraft pilots perceived simulated flights in the VR environment compared with conventional mockup-based simulators. In Experiment 1, student and instructor pilots conducted ten repeating flights in the simulator. Three extreme flight conditions were created, and participants rated perceptions of the extreme flights using multiple criteria. In Experiment 2, pilots manipulated G1000 electronic cockpit systems in the simulator during three repeating simulated flights and were asked to rate their perceptions of the manual controls. Participants perceived that the VR simulator was similar to or better than conventional simulators for all given Experiment 1 criteria and found that repetition made the operations easier. However, manipulating electronic cockpit systems was still not considered better than using conventional simulators, even though it became easier by repetition. Participants liked the 360-degree angle of visibility in the VR environment.

A Basic Framework of Virtual Reality Simulator for Advancing Disaster Response Work Using Teleoperated Work Machines

2014 ◽  
Vol 26 (4) ◽  
pp. 486-495 ◽  
Author(s):  
Mitsuhiro Kamezaki ◽  
◽  
Junjie Yang ◽  
Hiroyasu Iwata ◽  
Shigeki Sugano ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Disaster Response ◽  
Virtual Reality Simulator ◽  
Two Dimensional ◽  
Time Efficiency ◽  
Basic Framework ◽  
Camera View ◽  
Vr Simulator ◽  
Graphics Library

<div class=""abs_img""><img src=""[disp_template_path]/JRM/abst-image/00260004/11.jpg"" width=""300"" />Virtual reality simulator</span></div> A virtual reality (VR) simulator is developed to aid in advancing teleoperated construction machines for disaster response work. VR simulators, which can measure arbitrary data, allow the operator to reproduce desired situations repeatedly, and change the machine and environmental configurations more easily than is possible in real environments, can create teleoperation technologies and quantitatively evaluate them, and can improve operational skills in complex disaster response works. As basic components of a VR simulator, a VR environment, operation-input, and videooutput components are developed. The VR environment is built using a basic graphics library and dynamics engine for simplification. The operation-input component consists of control levers for a demolition machine that has a grapple and environmental cameras with yaw, pitch, and zoom functions. The videooutput component consists of a two-dimensional monitor that can display an in-vehicle camera view, multiple environmental camera views, and the machine status. Experiments conducted show that operators can adequately transport debris in the VR environment while watching views on the monitor from the in-vehicle and environmental cameras. The experiments also reveal the characteristics that reduce the machine’s time efficiency. </span>

scholarly journals ParaVR: a virtual reality training simulator for paramedic skills maintenance

2020 ◽  
Vol 12 (12) ◽  
pp. 478-486
Author(s):  
Nigel Rees ◽  
Neil Vaughan ◽  
Thomas W Day ◽  
Keith Dorrington ◽  
Lloyd Rees ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Medical Training ◽  
Skills Development ◽  
Training Simulator ◽  
Head Mounted Display ◽  
Computer Scientists ◽  
Potential Benefits ◽  
The University ◽  
Development And Management ◽  
Beta Version

Background: Virtual reality (VR) technology is emerging as a powerful tool in medical training and has potential benefits for paramedic education. Aim: The aim of this paper is to report the development of ParaVR, which uses VR to maintain paramedics' skills. Methods: Computer scientists at the University of Chester and the Welsh Ambulance Services NHS Trust (WAST) developed ParaVR in four stages: identifying requirements and specifications; alpha version development; beta version development; and management—development of software, further funding and commercialisation. Results: Needle cricothyrotomy and needle thoracostomy emerged as candidates for the prototype ParaVR. The Oculus Rift head-mounted display was combined with Novint Falcon haptic device and a virtual environment crafted using 3D modelling software, which was ported to the Oculus Go virtual reality headset and the Google Cardboard VR platform. Conclusion: VR is an emerging educational tool with the potential to enhance paramedic skills development and maintenance. The ParaVR programme is the first step in the authors' development, testing and scaling up of this technology.

Virtual Reality-Based Simulation of Endoscopic Surgery

2000 ◽  
Vol 9 (3) ◽  
pp. 310-333 ◽  
Author(s):  
G. Székely ◽  
Ch. Brechbühler ◽  
J. Dual ◽  
R. Enzler ◽  
J. Hug ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Endoscopic Surgery ◽  
Prototype System ◽  
Surgical Simulator ◽  
The Past ◽  
Traditional Training ◽  
Vr Training ◽  
Vr Simulator

Virtual reality (VR)-based surgical simulator systems offer a very elegant approach to enriching and enhancing traditional training in endoscopic surgery. However, while a number of VR simulator systems have been proposed and realized in the past few years, most of these systems are far from being able to provide a reasonably realistic surgical environment. We explore the current limits for realism and the approaches to reaching and surpassing those limits by describing and analyzing the most important components of VR-based endoscopic simulators. The feasibility of the proposed techniques is demonstrated on a modular prototype system that implements the basic algorithms for VR training in gynaecologic laparoscopy.

Task Performance and Situation Awareness with a Virtual Reality Head-Mounted Display

2017 ◽  
Vol 61 (1) ◽  
pp. 2105-2109 ◽  
Author(s):  
Jacob M. Read ◽  
Jason J. Saleem
Keyword(s):  
Virtual Reality ◽  
Task Performance ◽  
Situation Awareness ◽  
Real World ◽  
Real Life ◽  
Head Mounted Display ◽  
Significant Difference ◽  
Flat Screen ◽  
Vr Training ◽  
World Environment

Training can be expensive, dangerous, or impractical for certain situations. Virtual reality (VR) technology could be utilized to reduce the negative aspects of real-life training and the consequences incurred from inadequate training. However, for VR to be an effective training method, it must reflect reality to a certain extent. We measured task performance and situation awareness for parking situations with 15 participants in a real-world environment, and in a virtual environment using a VR headset and a flat screen computer monitor separately. Results revealed no significant difference in driver situation awareness between the reality, VR, and flat screen conditions. Performance in terms of task time was significantly less with the reality condition compared to the others. Therefore, the VR device was not equivalent to the real-world environment for training purposes. We discuss ways in which improvements to the VR training condition may increase the effectiveness of VR-based training.

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