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https://www.readbyqxmd.com/read/28329330/three-port-one-incision-plus-two-port-endoscopic-mitral-valve-surgery-without-robotic-assistance%C3%A2
#1
Toshiaki Ito, Atsuo Maekawa, Satoshi Hoshino, Yasunari Hayashi, Sadanari Sawaki, Junji Yanagisawa, Masayoshi Tokoro
OBJECTIVES: Totally endoscopic minimally invasive mitral valve surgery (MIMVS) is technically demanding and often performed with robotic assistance. We hypothesized that three-port video-assisted thoracic surgery (VATS) would facilitate endoscopic MIMVS and evaluated its feasibility and safety. METHODS: From October 2010 to June 2016, we performed first-time MIMVS in 250 consecutive patients (122 male), with median age of 65 years (54-73 years, 25-75 percentile)...
March 17, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329118/comparison-of-surgical-approach-and-extent-of-resection-for-masaoka-koga-stage-i-and-ii-thymic-tumours-in-europe-north-america-and-asia-an-international-thymic-malignancy-interest-group-retrospective-database-analysis%C3%A2
#2
Wentao Fang, Xiaopan Yao, Alberto Antonicelli, Zhitao Gu, Frank Detterbeck, Eric Vallières, Ralph W Aye, Alexander S Farivar, James Huang, Yue Shang, Brian E Louie
OBJECTIVES: Surgeons at different institutions worldwide choose different types of operations for thymic tumours. It is not known whether these differences affect the outcomes of the patients. METHODS: A total of 1430 patients with Masaoka-Koga pathological Stage I-II thymic tumours without myasthenia gravis or pre-treatment were identified from the International Thymic Malignancy Interest Group retrospective database. Outcomes of patients from 3 major continents (Europe, North America and Asia) were compared...
February 28, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329028/non-equilibrium-assembly-of-microtubules-from-molecules-to-autonomous-chemical-robots
#3
REVIEW
H Hess, Jennifer L Ross
Biological systems have evolved to harness non-equilibrium processes from the molecular to the macro scale. It is currently a grand challenge of chemistry, materials science, and engineering to understand and mimic biological systems that have the ability to autonomously sense stimuli, process these inputs, and respond by performing mechanical work. New chemical systems are responding to the challenge and form the basis for future responsive, adaptive, and active materials. In this article, we describe a particular biochemical-biomechanical network based on the microtubule cytoskeletal filament - itself a non-equilibrium chemical system...
March 22, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28328568/figure-4-knot-simple-tying-technique-for-robotic-and-endoscopic-sutures
#4
Norihiko Ishikawa, Go Watanabe
Various endoscopic suturing and tying methods have been reported, but these methods remain imperfect because knots are sometimes not tied completely and additional stitches are needed. To address this problem, we developed the "Figure 4" technique in which the knot can be easily slid to the suture point and tied by pulling suture tail-these knots will never come untied. This technique requires very simple technique and can be used in other surgical procedures such as conventional laparoscopic surgery.
March 22, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28328500/the-role-of-haptic-feedback-in-robotic-assisted-retinal-microsurgery-systems-a-systematic-review
#5
Julia A Griffin, Weihang Zhu, Chang S Nam
Retinal microsurgery is one of the most technically difficult surgeries since it is performed at the threshold of human capability. If certain retinal conditions are left untreated, they can lead to severe damage, including irreversible blindness. Thus, techniques for reliable retinal microsurgery operations are critical. Recent research shows promise for improving surgical safety by implementing various types of sensory input and output. Sensory information is used to inform the surgeon about the environment inside the eye in real time...
January 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28328297/a-revitalizing-look-at-simulation-education-and-at-new-paradigms-of-training-in-surgery-robotics-and-in-the-operating-room
#6
P Marco Fisichella
No abstract text is available yet for this article.
March 22, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28327513/indoor-positioning-system-using-magnetic-field-map-navigation-and-an-encoder-system
#7
Han-Sol Kim, Woojin Seo, Kwang-Ryul Baek
In the indoor environment, variation of the magnetic field is caused by building structures, and magnetic field map navigation is based on this feature. In order to estimate position using this navigation, a three-axis magnetic field must be measured at every point to build a magnetic field map. After the magnetic field map is obtained, the position of the mobile robot can be estimated with a likelihood function whereby the measured magnetic field data and the magnetic field map are used. However, if only magnetic field map navigation is used, the estimated position can have large errors...
March 22, 2017: Sensors
https://www.readbyqxmd.com/read/28326859/performance-evaluation-of-3d-vision-based-semi-autonomous-control-method-for-assistive-robotic-manipulator
#8
Hyun W Ka, Cheng-Shiu Chung, Dan Ding, Khara James, Rory Cooper
We developed a 3D vision-based semi-autonomous control interface for assistive robotic manipulators. It was implemented based on one of the most popular commercially available assistive robotic manipulator combined with a low-cost depth-sensing camera mounted on the robot base. To perform a manipulation task with the 3D vision-based semi-autonomous control interface, a user starts operating with a manual control method available to him/her. When detecting objects within a set range, the control interface automatically stops the robot, and provides the user with possible manipulation options through audible text output, based on the detected object characteristics...
March 22, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28326717/-application-and-development-of-surgical-robot-systems-in-craniomaxillofacial-surgery
#9
Zhu Jianhua, Guo Chuanbin
Traditional craniomaxillofacial surgery significantly affects aesthetic appreciation. In contrast to traditional methods, robot-assisted surgery has been extensively investigated because it is microinvasive, precise, and safe. With robot-assisted surgery, operational vision and manipulation space become extended. As a result, operational quality and patient's postoperative life are improved. This article reviewed the development of surgical robot systems and their applications in craniomaxillofacial surgery...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28325939/the-enigma-of-extreme-traumatism-trauma-exclusion-and-their-impact-on-subjectivity
#10
Marcelo N Viñar
My aim is to discuss the immediate effects of extreme trauma and to speculate on its long term effects. The formulations associated with the Post Traumatic Stress Syndrome generate an overly medicalized view of trauma, grossly underestimating its devastating impact. Catastrophic traumatic experience rips a hole in the representational continuity of psychic life; neither representations nor narrations are generated. Instead, a representational emptiness occurs, such that what has taken place cannot be shared or transmitted...
March 21, 2017: American Journal of Psychoanalysis
https://www.readbyqxmd.com/read/28325917/a-quadruped-robot-exhibiting-spontaneous-gait-transitions-from-walking-to-trotting-to-galloping
#11
Dai Owaki, Akio Ishiguro
The manner in which quadrupeds change their locomotive patterns-walking, trotting, and galloping-with changing speed is poorly understood. In this paper, we provide evidence for interlimb coordination during gait transitions using a quadruped robot for which coordination between the legs can be self-organized through a simple "central pattern generator" (CPG) model. We demonstrate spontaneous gait transitions between energy-efficient patterns by changing only the parameter related to speed. Interlimb coordination was achieved with the use of local load sensing only without any preprogrammed patterns...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325668/robot-assisted-laparoscopic-extravesical-ureteral-reimplantation-for-primary-vesicoureteral-reflux-in-children
#12
EDITORIAL
Glenn M Cannon, Michael C Ost
No abstract text is available yet for this article.
March 18, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28325185/minimally-invasive-surgical-approaches-to-gastric-resection
#13
REVIEW
Sepideh Gholami, Michael R Cassidy, Vivian E Strong
Minimally invasive gastric resections carry several advantages, including less intraoperative blood loss, faster recovery time, reduced pain, and decreased hospital length of stay and quicker return to work. Numerous trials have proved that laparoscopic and robotic-assisted gastrectomy provides equivalent surgical and oncologic outcomes to open approaches. As with any minimally invasive approach, advanced minimally invasive training and good judgment by a surgeon are paramount in selecting patients in whom a minimally invasive approach is feasible...
April 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28324959/a-robotic-exoskeleton-to-treat-crouch-gait-from-cerebral-palsy-initial-kinematic-and-neuromuscular-evaluation
#14
Zachary F Lerner, Diane L Damiano, Thomas C Bulea
A robotic exoskeleton was designed for individuals with crouch gait caused by cerebral palsy with the intent to supplement existing muscle function during walking. The aim of this study was to evaluate how powered knee extension assistance provided during stance and swing phases of the gait cycle affect knee kinematics, and knee flexor and extensor muscle activity. Muscle activity and kinematic data were collected from four individuals with crouch gait from cerebral palsy during their normal walking condition and while walking with the exoskeleton under stance, swing, and stance & swing assistance...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324951/mentor-s-brain-functional-connectivity-network-during-robotic-assisted-surgery-mentorship
#15
Somayeh B Shafiei, Scott T Doyle, Khurshid A Guru
In many complicated cognitive-motor tasks mentoring is inevitable during the learning process. Although mentors are expert in doing the task, trainee's operation might be new for a mentor. This makes mentoring a very difficult task which demands not only the knowledge and experience of a mentor, but also his/her ability to follow trainee's movements and patiently advise him/her during the operation. We hypothesize that information binding throughout the mentor's brain areas, contributed to the task, changes as the expertise level of the trainee improves from novice to intermediate and expert...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324945/a-comparative-study-of-pseudorandom-sequences-used-in-a-c-vep-based-bci-for-online-wheelchair-control
#16
Jonas Isaksen, Ali Mohebbi, Sadasivan Puthusserypady
In this study, a c-VEP based BCI system was developed to run on three distinctive pseudorandom sequences, namely the m-code, the Gold-code, and the Barker-code. The Visual Evoked Potentials (VEPs) were provoked using these codes. In the online session, subjects controlled a LEGO(®) Mindstorms(®) robot around a fixed track. Choosing the optimal code proved a significant increase in accuracy (p<;0.00001) over the average performance. No single code proved significantly more accurate than the others (p=0...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324931/muscle-activity-distribution-features-extracted-from-hd-semg-to-perform-forearm-pattern-recognition
#17
F Nougarou, A Campeau-Lecours, D Massicotte, B Gosselin
An efficient pattern recognition system based exclusively on forearm surface Electromyographic (sEMG) signals is proposed to provide a more intuitive control of a robotic arm used by some of the disabled. The main contribution of this paper is the use of an original set of features characterizing the muscle activity distribution obtained with high-density sEMG (HD sEMG) sensors. Contrary to simple sEMG, HD sEMG can produce muscle activity images with spatial distributions that differ according to forearm movement...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324876/re-irradiation-of-locoregional-nsclc-recurrence-using-robotic-stereotactic-body-radiotherapy
#18
Cemile Ceylan, Andaç Hamacı, Hande Ayata, Kezban Berberoglu, Ayhan Kılıç, Metin Güden, Kayıhan Engin
No abstract text is available yet for this article.
March 9, 2017: Oncology Research and Treatment
https://www.readbyqxmd.com/read/28324660/single-and-combination-drug-screening-with-aqueous-biphasic-tumor-spheroids
#19
Pradip Shahi Thakuri, Hossein Tavana
Spheroids of cancer cells represent a physiologic model of solid tumors for cancer drug screening. Despite this known benefit, difficulties with generating large quantities of uniformly sized spheroids in standard plates, individually addressing spheroids with drug compounds, and quantitatively analyzing responses of cancer cells have hindered the use of spheroids in high-throughput screening applications. Recently, we addressed this challenge by using an aqueous two-phase system technology to generate a spheroid within an aqueous drop immersed in a second, immiscible aqueous phase...
March 1, 2017: SLAS Discov
https://www.readbyqxmd.com/read/28324155/-robot-assisted-pancreatic-resection
#20
B Müssle, M Distler, J Weitz, T Welsch
Although robot-assisted pancreatic surgery has been considered critically in the past, it is nowadays an established standard technique in some centers, for distal pancreatectomy and pancreatic head resection. Compared with the laparoscopic approach, the use of robot-assisted surgery seems to be advantageous for acquiring the skills for pancreatic, bile duct and vascular anastomoses during pancreatic head resection and total pancreatectomy. On the other hand, the use of the robot is associated with increased costs and only highly effective and professional robotic programs in centers for pancreatic surgery will achieve top surgical and oncological quality, acceptable operation times and a reduction in duration of hospital stay...
March 21, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
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