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https://www.readbyqxmd.com/read/28545245/multimodal-bio-inspired-tactile-sensing-module-for-surface-characterization
#1
Thiago Eustaquio Alves de Oliveira, Ana-Maria Cretu, Emil M Petriu
Robots are expected to recognize the properties of objects in order to handle them safely and efficiently in a variety of applications, such as health and elder care, manufacturing, or high-risk environments. This paper explores the issue of surface characterization by monitoring the signals acquired by a novel bio-inspired tactile probe in contact with ridged surfaces. The tactile module comprises a nine Degree of Freedom Microelectromechanical Magnetic, Angular Rate, and Gravity system (9-DOF MEMS MARG) and a deep MEMS pressure sensor embedded in a compliant structure that mimics the function and the organization of mechanoreceptors in human skin as well as the hardness of the human skin...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28544809/robotic-radiosurgery-of-head-and-neck-paragangliomas-a-single-institution-experience
#2
İlker Tosun, Banu Atalar, Bilgehan Şahin, Görkem Güngör, Gökhan Aydin, Bülent Yapici, Enis Özyar
AIM: CyberKnife(®) is a robotic stereotactic radiotherapy system. The aim of this study is to evaluate the effectiveness and the safety of CyberKnife(®) on treating head and neck paragangliomas and to report our results. METHODS: Between March 2009 and June 2014, 12 patients with head and neck paragangliomas have been referred to our clinic: in three cases had jugular paragangliomas, five cases had carotid body paragangliomas and three cases had tympanic paragangliomas...
May 24, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28544676/robotic-distal-locking-of-intramedullary-nailing-technical-description-and-cadaveric-testing
#3
Martin Panzica, Eduardo M Suero, Ralf Westphal, Musa Citak, Emmanouil Liodakis, Nael Hawi, Max Petri, Christian Krettek, Timo Stuebig
Interlocked intramedullary nailing is the treatment of choice for femoral shaft fractures. However, distal locking is a technically challenging part of the procedure that can result in distal femoral malrotation and high radiation exposure. We have tested a robotic procedure for robotic distal locking based on the computation of a drilling trajectory on two calibrated fluoroscopic images. Twenty distal holes were attempted in ten cadaveric femur specimens. Successful screw hole drilling was achieved at the first attempt in each of the ten specimens (20 drill holes in total)...
May 23, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28544316/negating-the-fulcrum-effect-in-manual-laparoscopic-surgery-investigating-skill-acquisition-with-a-haptic-simulator
#4
Adam J Spiers, Sarah Baillie, Tony G Pipe, George Asimakopolous
BACKGROUND: Manual laparoscopic surgery requires extensive training and familiarization. It has been suggested that motion inversion caused by the 'fulcrum effect' is key to motor challenges. We investigate the potential of a conceptual semi-robotic handheld tool that negates natural inversion. METHODS: A custom laparoscopic simulator with haptic feedback was developed to allow interactive evaluation of the conceptual tool via virtual prototyping, prior to fabricating a physical prototype...
May 23, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28544311/impact-of-body-mass-index-on-robotic-radical-cystectomy-with-intra-corporeal-urinary-diversion
#5
Nariman Ahmadi, Thomas G Clifford, Gus Miranda, Jie Cai, Monish Aron, Mihir M Desai, Inderbir S Gill
OBJECTIVES: To determine the impact of body mass index (BMI) on peri-operative and oncological outcomes following robotic radical cystectomy (RRC) with intra-corporeal urinary diversion (ICUD). SUBJECTS AND METHODS: A total of 216 patients undergoing RRC, extended lymphadenectomy and ICUD (07/2010-12/2015) were categorized into four BMI groups according to the 2004 World Health Organization (WHO) obesity classification: <25 kg/m(2) (normal), 25-29.9 kg/m(2) (pre-obese), 30-34...
May 22, 2017: BJU International
https://www.readbyqxmd.com/read/28544251/robotic-bariatric-surgery-a-general-review-of-the-current-status
#6
REVIEW
Minoa K Jung, Monika E Hagen, Nicolas C Buchs, Leo H Buehler, Philippe Morel
BACKGROUND: While conventional laparoscopy is the gold standard for almost all bariatric procedures, robotic assistance holds promise for facilitating complex surgeries and improving clinical outcomes. Since the report of the first robotic-assisted bariatric procedure in 1999, numerous publications, including those reporting comparative trials and meta-analyses across bariatric procedures with a focus on robotic assistance, can be found. PURPOSE: This article reviews the current literature and portrays the perspectives of robotic bariatric surgery...
May 23, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28544097/multiple-hydrogen-bonding-enables-the-self-healing-of-sensors-for-human-machine-interaction
#7
Jie Cao, Canhui Lu, Jian Zhuang, Manxiao Liu, Xinxing Zhang, Yanmei Yu, Qingchuan Tao
Despite its widespread use in signal collection, flexible sensor has been rarely used in human-machine interaction due to its indistinguishable signal, poor reliability and stability when suffered from unavoidable scratches and/or mechanical cuts. Here, we demonstrate a highly sensitive and self-healing sensor enabled by multiple hydrogen bonding network and nanostructured conductive network. The nanostructured supramolecular sensor displays extremely fast (~15 s) and repeatable self-healing ability with high healing efficiency (93% after the 3rd healing process)...
May 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28544071/a-prospective-randomized-controlled-trial-for-assessment-of-perineal-hydrodissection-technique-for-nervesparing-robot-assisted-radical-prostatectomy
#8
G Hatiboglu, T Simpfendörfer, L Uhlmann, M A Bergero, S Macher-Goeppinger, S Pahernik, B Hadaschik, M Hohenfellner, D Teber
BACKGROUND: This study prospectively evaluated the safety and efficacy of perineal hydrodissection in robot assisted nervesparing prostatectomy. METHODS: Patients were randomized for perineal, ultrasound guided hydrodissection (HD) before radical prostatectomy and compared with standard treatment (ST). Follow-up was done every 3 months, including erectile function (IIEF5-score), reported grade of erection, ability for sexual intercourse, continence, PSA. RESULTS: 21 patients were enrolled to this prospective study, 10 for ST and 11 for HD...
May 23, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28543091/intraoperative-localized-constrained-registration-in-navigated-bronchoscopy
#9
Erlend Fagertun Hofstad, Hanne Sorger, Janne Beate Lervik Bakeng, Lucian Gruionu, Håkon Olav Leira, Tore Amundsen, Thomas Langø
PURPOSE: One of the major challenges in electromagnetic navigated bronchoscopy is the navigation accuracy. An initial rigid image-to-patient registration may not be optimal for the entire lung volume, as the lung tissue anatomy is likely to have shifted since the time of computer tomography (CT) acquisition. The accuracy of the initial rigid registration will also be affected throughout the procedure by breathing, coughing, patient movement and tissue displacements due to pressure from bronchoscopy tools...
May 25, 2017: Medical Physics
https://www.readbyqxmd.com/read/28542716/improving-needle-tip-identification-during-ultrasound-guided-procedures-in-anaesthetic-practice
#10
REVIEW
H J Scholten, A Pourtaherian, N Mihajlovic, H H M Korsten, R A Bouwman
Ultrasound guidance is becoming standard practice for needle-based interventions in anaesthetic practice, such as vascular access and peripheral nerve blocks. However, difficulties in aligning the needle and the transducer can lead to incorrect identification of the needle tip, possibly damaging structures not visible on the ultrasound screen. Additional techniques specifically developed to aid alignment of needle and probe or identification of the needle tip are now available. In this scoping review, advantages and limitations of the following categories of those solutions are presented: needle guides; alterations to needle or needle tip; three- and four-dimensional ultrasound; magnetism, electromagnetic or GPS systems; optical tracking; augmented (virtual) reality; robotic assistance; and automated (computerised) needle detection...
May 22, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28542648/robot-education-peers-in-a-situated-primary-school-study-personalisation-promotes-child-learning
#11
Paul Baxter, Emily Ashurst, Robin Read, James Kennedy, Tony Belpaeme
The benefit of social robots to support child learning in an educational context over an extended period of time is evaluated. Specifically, the effect of personalisation and adaptation of robot social behaviour is assessed. Two autonomous robots were embedded within two matched classrooms of a primary school for a continuous two week period without experimenter supervision to act as learning companions for the children for familiar and novel subjects. Results suggest that while children in both personalised and non-personalised conditions learned, there was increased child learning of a novel subject exhibited when interacting with a robot that personalised its behaviours, with indications that this benefit extended to other class-based performance...
2017: PloS One
https://www.readbyqxmd.com/read/28542076/comparative-analysis-of-perioperative-and-mid-term-results-of-tecab-and-midcab-for-revascularization-of-anterior-wall
#12
Markus Kofler, Thomas Schachner, Sebastian J Reinstadler, Lukas Stastny, Julia Dumfarth, Dominik Wiedemann, Gudrun Feuchtner, Guy Friedrich, Johannes Bonatti, Nikolaos Bonaros
OBJECTIVE: Totally endoscopic coronary artery bypass (TECAB) and minimally invasive direct coronary artery bypass (MIDCAB) grafting through minithoracotomy are currently the two minimally invasive surgical techniques of left ventricular anterior wall revascularization. We aimed to compare both techniques in terms of perioperative and mid-term results. METHODS: Arrested heart TECAB was carried out in 204 patients with a median (range) age of 60 (53-76) years and a median (range) EuroSCORE I of 2 (0-3)...
May 24, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28541915/embedded-system-for-prosthetic-control-using-implanted-neuromuscular-interfaces-accessed-via-an-osseointegrated-implant
#13
Enzo Mastinu, Pascal Doguet, Yohan Botquin, Bo Hakansson, Max Ortiz-Catalan
Despite the technological progress in robotics achieved in the last decades, prosthetic limbs still lack functionality, reliability, and comfort. Recently, an implanted neuromusculoskeletal interface built upon osseointegration was developed and tested in humans, namely the Osseointegrated Human-Machine Gateway. Here, we present an embedded system to exploit the advantages of this technology. Our artificial limb controller allows for bioelectric signals acquisition, processing, decoding of motor intent, prosthetic control, and sensory feedback...
May 23, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28541531/the-affordability-of-minimally-invasive-procedures-in-major-lung-resection-a-prospective-study
#14
Henri Gondé, Marc Laurent, André Gillibert, Omar-Matthieu Sarsam, Rémi Varin, Gaël Grimandi, Christophe Peillon, Jean-Marc Baste
OBJECTIVES: Minimally invasive procedures are used for the surgical treatment of lung cancer. Two techniques are proposed: video-assisted thoracic surgery or robotic-assisted thoracic surgery. Our goal was to study the economic impact of our long-standing program for minimally invasive procedures for major lung resection. METHODS: We conducted a single-centre, 1-year prospective cost study. Patients who underwent lobectomy or segmentectomy were included. Patient characteristics and perioperative outcomes were collected...
May 25, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28541226/haptic-feedback-in-needle-insertion-modeling-and-simulation-review
#15
Gourishetti Ravali, Muniyandi Manivannan
Needle insertion being the most basic skill in medical care, training has to be imparted not only for physicians but also for nurses and paramedics. In most needle insertion procedures haptic feedback from the needle is the main stimulus that novices are to be trained in. For better patient safety, the classical methods of training the haptic skills have to be replaced with simulators based on new robotic and graphics technologies. This paper reviews the current advances in needle insertion modeling. It is classified into three sections: needle insertion models, tissue deformation models, and needle-tissue interaction models...
May 23, 2017: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/28541210/walking-gait-step-length-asymmetry-induced-by-handheld-device
#16
Mahdi Abid, Valerie Renaudin, Yannick Aoustin, Eric Le Carpentier, Thomas Robert
The modeling and feature extraction of human gait motion are crucial in biomechanics studies, human localization and robotics applications. Recent studies in pedestrian navigation aim at extracting gait features based on the data of low-cost sensors embedded in handheld devices such as smartphones. The general assumption in Pedestrian Dead Reckoning (PDR) strategy for navigation application is that the presence of a device in hand does not impact the gait symmetry and that all steps are identical. This hypothesis, which is used to estimate the traveled distance, is investigated in this paper with an experimental study...
May 18, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28540957/a-skin-integrated-transparent-and-stretchable-strain-sensor-with-interactive-color-changing-electrochromic-displays
#17
Heun Park, Dong Sik Kim, Soo Yeong Hong, Chulmin Kim, Jun Yeong Yun, Seung Yun Oh, Sang Woo Jin, Yu Ra Jeong, Gyu Tae Kim, Jeong Sook Ha
In this study, we report on the development of a stretchable, transparent, and skin-attachable strain sensor integrated with a flexible electrochromic device as a human skin-inspired interactive color-changing system. The strain sensor consists of a spin-coated conductive nanocomposite film of poly(vinyl alcohol)/multi-walled carbon nanotube/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) on a polydimethylsiloxane substrate. The sensor exhibits excellent performance of high sensitivity, high durability, fast response, and high transparency...
May 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28540536/effects-of-robot-assisted-upper-limb-rehabilitation-in-stroke-patients-a-systematic-review-with-meta-analysis
#18
Rachele Bertani, Corrado Melegari, Maria C De Cola, Alessia Bramanti, Placido Bramanti, Rocco Salvatore Calabrò
Technology-supported training is emerging as a solution to support therapists in their efforts providing high-intensity, repetitive, and task-specific treatment, in order to enhance the recovery process. The aim of this review is to assess the effectiveness of different robotic devices (end-effector and exoskeleton robots) in comparison with any other type of intervention. Furthermore, we aim to assess whether or not better improvements are obtained in the sub-acute phase after stroke onset than in the chronic phase...
May 24, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28540284/prototyping-and-simulation-of-robot-group-intelligence-using-kohonen-networks
#19
Zhijun Wang, Reza Mirdamadi, Qing Wang
Intelligent agents such as robots can form ad hoc networks and replace human being in many dangerous scenarios such as a complicated disaster relief site. This project prototypes and builds a computer simulator to simulate robot kinetics, unsupervised learning using Kohonen networks, as well as group intelligence when an ad hoc network is formed. Each robot is modeled using an object with a simple set of attributes and methods that define its internal states and possible actions it may take under certain circumstances...
September 2016: IOSR J Comput Eng
https://www.readbyqxmd.com/read/28540242/human-and-robot-an-amity-not-a-discord
#20
EDITORIAL
Glen Denmer R Santok, Ali Abdel Raheem, Ki Don Chang, Koon Ho Rha
No abstract text is available yet for this article.
April 2017: Translational Andrology and Urology
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