1,363 research outputs found
Prevalence of haptic feedback in robot-mediated surgery : a systematic review of literature
© 2017 Springer-Verlag. This is a post-peer-review, pre-copyedit version of an article published in Journal of Robotic Surgery. The final authenticated version is available online at: https://doi.org/10.1007/s11701-017-0763-4With the successful uptake and inclusion of robotic systems in minimally invasive surgery and with the increasing application of robotic surgery (RS) in numerous surgical specialities worldwide, there is now a need to develop and enhance the technology further. One such improvement is the implementation and amalgamation of haptic feedback technology into RS which will permit the operating surgeon on the console to receive haptic information on the type of tissue being operated on. The main advantage of using this is to allow the operating surgeon to feel and control the amount of force applied to different tissues during surgery thus minimising the risk of tissue damage due to both the direct and indirect effects of excessive tissue force or tension being applied during RS. We performed a two-rater systematic review to identify the latest developments and potential avenues of improving technology in the application and implementation of haptic feedback technology to the operating surgeon on the console during RS. This review provides a summary of technological enhancements in RS, considering different stages of work, from proof of concept to cadaver tissue testing, surgery in animals, and finally real implementation in surgical practice. We identify that at the time of this review, while there is a unanimous agreement regarding need for haptic and tactile feedback, there are no solutions or products available that address this need. There is a scope and need for new developments in haptic augmentation for robot-mediated surgery with the aim of improving patient care and robotic surgical technology further.Peer reviewe
Robotic simulators for tissue examination training with multimodal sensory feedback
Tissue examination by hand remains an essential technique in clinical practice. The effective application depends on skills in sensorimotor coordination, mainly involving haptic, visual, and auditory feedback. The skills clinicians have to learn can be as subtle as regulating finger pressure with breathing, choosing palpation action, monitoring involuntary facial and vocal expressions in response to palpation, and using pain expressions both as a source of information and as a constraint on physical examination. Patient simulators can provide a safe learning platform to novice physicians before trying real patients. This paper reviews state-of-the-art medical simulators for the training for the first time with a consideration of providing multimodal feedback to learn as many manual examination techniques as possible. The study summarizes current advances in tissue examination training devices simulating different medical conditions and providing different types of feedback modalities. Opportunities with the development of pain expression, tissue modeling, actuation, and sensing are also analyzed to support the future design of effective tissue examination simulators
A Review of Pneumatic Actuators Used for the Design of Medical Simulators and Medical Tools
International audienc
LiftTiles: Constructive Building Blocks for Prototyping Room-scale Shape-changing Interfaces
Large-scale shape-changing interfaces have great potential, but creating such
systems requires substantial time, cost, space, and efforts, which hinders the
research community to explore interactions beyond the scale of human hands. We
introduce modular inflatable actuators as building blocks for prototyping
room-scale shape-changing interfaces. Each actuator can change its height from
15cm to 150cm, actuated and controlled by air pressure. Each unit is low-cost
(8 USD), lightweight (10 kg), compact (15 cm), and robust, making it
well-suited for prototyping room-scale shape transformations. Moreover, our
modular and reconfigurable design allows researchers and designers to quickly
construct different geometries and to explore various applications. This paper
contributes to the design and implementation of highly extendable inflatable
actuators, and demonstrates a range of scenarios that can leverage this modular
building block.Comment: TEI 202
ShapeBots: Shape-changing Swarm Robots
We introduce shape-changing swarm robots. A swarm of self-transformable
robots can both individually and collectively change their configuration to
display information, actuate objects, act as tangible controllers, visualize
data, and provide physical affordances. ShapeBots is a concept prototype of
shape-changing swarm robots. Each robot can change its shape by leveraging
small linear actuators that are thin (2.5 cm) and highly extendable (up to
20cm) in both horizontal and vertical directions. The modular design of each
actuator enables various shapes and geometries of self-transformation. We
illustrate potential application scenarios and discuss how this type of
interface opens up possibilities for the future of ubiquitous and distributed
shape-changing interfaces.Comment: UIST 201
Turing-Test Evaluation of a Mobile Haptic Virtual Reality Kissing Machine
Various communication systems have been developed to integrate the haptic channel in digital communication. Future directions of such haptic technologies are moving towards realistic virtual reality applications and human-robot social interaction. With the digitisation of touch, robots equipped with touch sensors and actuators can communicate with humans on a more emotional and intimate level, such as sharing a hug or kiss just like humans do. This paper presents the design guideline, implementation and evaluations of a novel haptic kissing machine for smart phones - the Kissenger machine. The key novelties and contributions of the paper are: (i) A novel haptic kissing device for mobile phones, which uses dynamic perpendicular force stimulation to transmit realistic sensations of kissing in order to enhance intimacy and emotional connection of digital communication; (ii) Extensive evaluations of the Kissenger machine, including a lab experiment that compares mediated kissing with Kissenger to real kissing, a unique haptic Turing test that involves the first academic study of humanmachine kiss, and a field study of the effects of Kissenger on long distance relationships
FLECTILE: 3D-printable soft actuators for wearable computing
Rapid prototyping and fast manufacturing processes are critical drivers for implementing wearable devices. This paper shows an exemplary method for building flexible, fully elastomeric, vibrotactile electromagnetic actuators based on the Lorentz force law. This paper also introduces the design parameters required for well-functioning actuators and studies the properties of such actuators. The crucial element of the actuator is a helical planer coil manufactured from "capillary" silver TPU (Thermoplastic polyurethane), an ultra-stretchable conductor. This paper leverages the novel material to manufacture soft vibration actuators in fewer and simpler steps than previous approaches. Best practices and procedures for building a wearable actuator are reported. We show that the dimension of the actuators are easily configurable and can be printed in batch-size-one using 3D printing. Actuators can be attached directly to the skin as all the components of FLECTILE are made from biocompatible polymers. Tests on the driving properties have confirmed that the actuator could reach a broad scope of frequency up to 200 Hz with a small voltage (5 V) required. A user study showed that vibrations of the actuator are well perceivable by six study participants under an observing, hovering, and resting condition
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