scholarly journals The added value of virtual reality technology and force feedback for surgical training simulators

Work ◽  
2012 ◽  
Vol 41 ◽  
pp. 2288-2292 ◽  
Author(s):  
L. Zhang ◽  
C. Grosdemouge ◽  
V. S. Arikatla ◽  
W. Ahn ◽  
G. Sankaranarayanan ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Surgical Training ◽  
Force Feedback ◽  
Added Value ◽  
Virtual Reality Technology

scholarly journals Study on Collision Detection and Force Feedback Algorithm in Virtual Surgery

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Yu Zhang ◽  
Dan Luo ◽  
Jia Li ◽  
Jisheng Li
Keyword(s):  
Virtual Reality ◽  
Surgical Training ◽  
Collision Detection ◽  
Force Feedback ◽  
Euler Method ◽  
Training System ◽  
Virtual Surgery ◽  
Virtual Reality Technology ◽  
Important Indicator ◽  
Feedback Algorithm

The development of virtual reality technology is expected to solve traditional surgical training. The lack of methods has brought revolutionary advances in technology. The virtual surgery system based on collision detection and force feedback can enable the operator to have stronger interaction, which is an exploration of the feature of touch in virtual reality technology. Reality is an important indicator of the virtual surgical system. This article improves the realism of the system from the visual and tactile senses and uses the surrounding ball collision detection and force feedback algorithms to build a realistic surgical platform. In the virtual surgery training system, the introduction of force feedback greatly improves the sense of presence during virtual surgery interaction. The operator can feel the softness and hardness of different tissues and organs through the force feedback device. Virtual reality is an interdisciplinary comprehensive technology that has been widely used in military, film, medical, and gaming fields. Virtual reality can simulate the objective world and display it visually, making people feel immersive. Virtual surgery provides surgeons with a recyclable surgical practice platform and can help doctors perform preoperative rehearsals and predict the results of surgery. The design of collision detection and force feedback algorithms is a prerequisite to ensure the immersion and transparency of the virtual surgical training system. This article mainly introduces the collision detection and force feedback algorithm research in virtual surgery, with the intention of providing some ideas and directions for the development of virtual surgery. This paper proposes two collision detection algorithms, space decomposition method and hierarchical bounding box method, and three force feedback algorithms including spring mass point algorithm, Runge–Kutta method, and Euler method to construct virtual surgery collision detection and force feedback. Experiment with the Overall System Architecture. This paper proves through experimental results that the average collision detection time after the application of the improved collision detection and force feedback algorithm in the virtual surgery system is more than 80.7% less than the traditional method, which greatly improves the detection speed.

scholarly journals A Touching Sensation

2003 ◽  
Vol 125 (11) ◽  
pp. 30-32 ◽  
Author(s):  
Jean Thilmany
Keyword(s):  
Virtual Reality ◽  
Physical Therapy ◽  
Force Feedback ◽  
Virtual Reality Technology ◽  
Haptic Devices ◽  
University Of Utah ◽  
Robotic Devices ◽  
The One ◽  
The University ◽  
Sense Of Touch

This article discusses Haptics technology that is being used to train surgeons and rehabilitate patients. Haptics technology, a recent enhancement to virtual reality technology, gives users the touch and feel of simulated objects they interact with, usually through a device like a specialized mouse or a haptic glove. John Hollerbach, a computing professor and an adjunct professor of mechanical engineering at the University of Utah, says haptic devices and robotic devices share the same drawbacks, particularly involving limits to the miniaturization of motors. Haptic devices that fit the hand, like the one sold by Immersion Corp., or the force-feedback glove developed at Rutgers give the wearer a sense of touch, as if one is squeezing a ball or tracing an object. Hollerbach of the University of Utah said the future looks bright for haptics. The Rutgers ankle simulates walking over several types of terrain for patients undergoing physical therapy. Haptics can simulate assembling a part to ensure that it is designed for easy construction.

The role of virtual reality in the changing landscape of surgical training

2020 ◽  
Vol 134 (10) ◽  
pp. 863-866
Author(s):  
J R Abbas ◽  
J J Kenth ◽  
I A Bruce
Keyword(s):  
Medical Education ◽  
Virtual Reality ◽  
Surgical Training ◽  
Mixed Reality ◽  
Virtual Reality Technology ◽  
Continue Medical ◽  
Academic Activities ◽  
Simulation Based ◽  
The World

AbstractBackgroundThe current coronavirus disease 2019 pandemic has caused unprecedented challenges to surgical training across the world. With the widespread cancellations of clinical and academic activities, educators are looking to technological advancements to help ‘bridge the gap’ and continue medical education.SolutionsSimulation-based training as the ‘gold standard’ for medical education has limitations that prevent widespread adoption outside suitably resourced centres. Virtual reality has the potential to surmount these barriers, whilst fulfilling the fundamental aim of simulation-based training to provide a safe, effective and realistic learning environment.Current limitations and insights for futureThe main limitations of virtual reality technology include comfort and the restrictive power of mobile processors. There exists a clear developmental path to address these restrictions. Continued developments of the hardware and software set to deepen immersion and widen the possibilities within surgical education.ConclusionIn the post coronavirus disease 2019 educational landscape, virtual, augmented and mixed reality technology may prove invaluable in the training of the next generation of surgeons.

Visualisation of Burring Operation in Virtual Surgery Simulation

2010 ◽  
Author(s):  
Esin Onbasıog˘lu ◽  
Bas¸ar Atalay ◽  
Dionysis Goularas ◽  
Ahu H. Soydan ◽  
Koray K. S¸afak ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Surgical Training ◽  
Force Feedback ◽  
Surgical Simulation ◽  
Ct Images ◽  
Patient Specific ◽  
Virtual Surgery ◽  
Surgery Simulation ◽  
Real Patients ◽  
Surgical Operations

Virtual reality based surgical training have a great potential as an alternative to traditional training methods. In neurosurgery, state-of-the-art training devices are limited and the surgical experience accumulates only after so many surgical procedures. Incorrect surgical movements can be destructive; leaving patients paralyzed, comatose or dead. Traditional techniques for training in surgery use animals, phantoms, cadavers and real patients. Most of the training is based either on these or on observation behind windows. The aim of this research is the development of a novel virtual reality training system for neurosurgical interventions based on a real surgical microscope for a better visual and tactile realism. The simulation works by an accurate tissue modeling, a force feedback device and a representation of the virtual scene on the screen or directly on the oculars of the operating microscope. An intra-operative presentation of the preoperative three-dimensional data will be prepared in our laboratory and by using this existing platform virtual organs will be reconstructed from real patients’ images. VISPLAT is a platform for virtual surgery simulation. It is designed as a patient-specific system that provides a database where patient information and CT images are stored. It acts as a framework for modeling 3D objects from CT images, visualization of the surgical operations, haptic interaction and mechanistic material-removal models for surgical operations. It tries to solve the challenging problems in surgical simulation, such as real-time interaction with complex 3D datasets, photorealistic visualization, and haptic (force-feedback) modeling. Surgical training on this system for educational and preoperative planning purposes will increase the surgical success and provide a better quality of life for the patients. Surgical residents trained to perform surgery using virtual reality simulators will be more proficient and have fewer errors in the first operations than those who received no virtual reality simulated education. VISPLAT will help to accelerate the learning curve. In future VISPLAT will offer more sophisticated task training programs for minimally invasive surgery; this system will record errors and supply a way of measuring operative efficiency and performance, working both as an educational tool and a surgical planning platform quality.

Virtual classroom project

2017 ◽  
Author(s):  
Nicholas Gmeiner
Keyword(s):  
Virtual Reality ◽  
Students With Disabilities ◽  
Learning Experience ◽  
Virtual Classroom ◽  
Traditional Classroom ◽  
Video Capture ◽  
Interactive Learning Environment ◽  
Virtual Reality Technology ◽  
Virtual Classrooms ◽  
Classroom Project

This project aims to provide students with disabilities the same in class learning experience through virtual reality technology, 360-degree video capture, and the use of Arduino units. These technologies will be combined to facilitate communication between teachers in physical classrooms with students in virtual classrooms. The goal is to provide a person who is affected by a disability (which makes it hard to be in a traditional classroom) the same benefits of a safe and interactive learning environment.

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