keyword
MENU ▼
Read by QxMD icon Read
search

Robotics

keyword
https://www.readbyqxmd.com/read/29346321/new-control-paradigms-for-resources-saving-an-approach-for-mobile-robots-navigation
#1
Rafael Socas, Raquel Dormido, Sebastián Dormido
In this work, an event-based control scheme is presented. The proposed system has been developed to solve control problems appearing in the field of Networked Control Systems (NCS). Several models and methodologies have been proposed to measure different resources consumptions. The use of bandwidth, computational load and energy resources have been investigated. This analysis shows how the parameters of the system impacts on the resources efficiency. Moreover, the proposed system has been compared with its equivalent discrete-time solution...
January 18, 2018: Sensors
https://www.readbyqxmd.com/read/29346168/a-new-robot-assisted-billroth-i-reconstruction-details-of-the-technique-and-early-results
#2
Graziano Ceccarelli, Luigi Marano, Massimo Codacci-Pisanelli, Enrico Andolfi, Alessia Biancafarina, Massimiliano Fabozzi, Stefano Caruso, Alberto Patriti
BACKGROUND: Laparoscopic surgery for gastric tumor is considered a demanding procedure because of lymph node dissection and reconstruction. Billroth-I (B-I) reconstruction after laparoscopic distal gastrectomy is commonly performed extracorporeally because of the complexity of an intracorporeal procedure. Robotic surgery overcomes some limitations of laparoscopy, allowing to reproduce the basic maneuvers of open surgery. We describe a new technique to perform robotic B-I anastomosis. METHODS: Between January 2012 and February 2015, 5 patients underwent distal gastrectomy with intracorporeal B-I-stapled anastomosis...
January 16, 2018: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/29346027/postsurgical-outcomes-and-surgical-completeness-of-robotic-thyroid-surgery-a-single-surgeon-s-experience-on-700-cases
#3
Eon-Bin Kim, Jae Won Cho, Yu-Mi Lee, Tae-Yon Sung, Jong Ho Yoon, Ki-Wook Chung, Suck Joon Hong
BACKGROUND: Advanced technology and understanding of robotic surgical system have rendered robotic thyroid surgery more expanding. The aim of this study was to identify the periodic changes in postsurgical outcomes of robotic thyroid surgery performed by a single surgeon. METHODS: We conducted a retrospective review of 700 robotic thyroid surgery cases using gasless trans-axillary approach. RESULTS: All patients underwent successful operations without conversion to open surgery, and were mostly younger than 45 years, female, less-extended thyroid surgery and lymph node dissection, and thyroid cancer...
January 18, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29345697/re-singh-a-et-al-robot-assisted-retroperitoneal-lymph-node-dissection-feasibility-and-outcome-in-postchemotherapy-residual-mass-in-testicular-cancer-indian-j-urol-2017-33-304-9
#4
COMMENT
Mustafa Zafer Temiz, Omer Onur Cakir, Engin Kandirali, Atilla Semercioz
No abstract text is available yet for this article.
January 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29345672/train-robots-to-self-certify-their-safe-operation
#5
Valentin Robu, David Flynn, David Lane
No abstract text is available yet for this article.
January 18, 2018: Nature
https://www.readbyqxmd.com/read/29345632/brain-machine-interfaces-for-controlling-lower-limb-powered-robotic-systems
#6
Yongtian He, David Eguren, José M Azorín, Robert Grossman, Trieu Phat Luu, Jose Luis Pepe Contreras-Vidal
Lower-limb, powered robotics systems such as exoskeletons and orthoses have emerged as novel robotic interventions to assist or rehabilitate people with walking disabilities. These devices are generally controlled by certain physical maneuvers, for example pressing buttons or shifting body weight. Although effective, these control schemes are not what humans naturally use. The usability and clinical relevance of these robotics systems could be further enhanced by brain-machine interfaces (BMIs). A number of preliminary studies have been published on this topic, but a systematic understanding of the experimental design, tasks, and performance of BMI-exoskeleton systems for restoration of gait is lacking...
January 18, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29345514/design-and-validation-of-an-instrumented-uneven-terrain-treadmill
#7
Alexandra S Voloshina, Daniel P Ferris
Studying human and animal locomotion on uneven terrain can be beneficial to basic science and applied studies for clinical and robotic applications. Traditional biomechanical analysis of human locomotion has often been limited to laboratory environments with flat, smooth runways and treadmills. We modified a regular exercise treadmill by attaching wooden blocks to the treadmill belt to yield an uneven locomotion surface. To ensure that these treadmill modifications facilitated biomechanical measurements, we compared ground reaction force data collected during running on the modified instrumented treadmill with a smooth surface to data collected using a conventional instrumented treadmill...
January 18, 2018: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29345473/highly-sensitive-and-ultrastable-skin-sensors-for-biopressure-and-bioforce-measurements-based-on-hierarchical-microstructures
#8
Qi-Jun Sun, Jiaqing Zhuang, Shishir Venkatesh, Ye Zhou, Su-Ting Han, Wei Wu, Ka-Wai Kong, Wen-Jung Li, Xianfeng Chen, Robert K Y Li, Vellaisamy A L Roy
Piezoresistive microsensors are considered to be essential components of the future wearable electronic devices. However, the expensive cost, complex fabrication technology, poor stability, and low yield have limited their developments for practical applications. Here, we present a cost-effective, relatively simple, and high-yield fabrication approach to construct highly sensitive and ultrastable piezoresistive sensors using a bioinspired hierarchically structured graphite/polydimethylsiloxane composite as the active layer...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29344094/robotic-prostatectomy-leading-to-a-delayed-mrsa-infected-lymphocele-a-case-report-and-review-of-the-literature
#9
Monica Kaminski, Rose Recco, Steven Siegel
Prostate cancer is the second leading cancer-related cause of death in the USA with the majority presenting as localized disease. In the last decade minimally invasive, robotic-assisted laparascopic, radical prostatectomy has become the most favored treatment choice. A complication that has been observed in 27% of patients is the formation of an asymptomatic lymphocele. It is a very rare complication for these to become infected, and when they do 80% have occurred 2-12 months post-procedure. In this case report the patient presented with fever and leukocytosis of unknown origin and was found to have a methicillin-resistant Staphylococcus aureus (MRSA) infected lymphocele over 2 years after a radical prostatectomy...
January 2018: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/29343915/impact-of-learning-curve-on-the-perioperative-outcomes-following-robot-assisted-partial-nephrectomy-for-renal-tumors
#10
Brendan Hermenigildo Dias, Mohammed Shahid Ali, Shiv Dubey, Srinivas Arkalgud Krishnaswamy, Amrith Raj Rao, Deepak Dubey
Introduction: Robot-assisted partial nephrectomy (RAPN) is an established, minimally invasive technique to treat patients with renal masses. The aim of this study was to assess the learning curve (LC) of RAPN, evaluate its impact on perioperative outcomes following RAPN and to study the role of surgeon experience in achieving "trifecta" outcomes following RAPN. Methods: We prospectively analyzed the clinical and pathological outcomes of 108 consecutive patients who underwent RAPN for renal tumors from January 2012 to December 2016 by a laparoscopy trained surgeon with no prior robotic experience...
January 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29343772/shape-matching-soft-mechanical-metamaterials
#11
M J Mirzaali, S Janbaz, M Strano, L Vergani, A A Zadpoor
Architectured materials with rationally designed geometries could be used to create mechanical metamaterials with unprecedented or rare properties and functionalities. Here, we introduce "shape-matching" metamaterials where the geometry of cellular structures comprising auxetic and conventional unit cells is designed so as to achieve a pre-defined shape upon deformation. We used computational models to forward-map the space of planar shapes to the space of geometrical designs. The validity of the underlying computational models was first demonstrated by comparing their predictions with experimental observations on specimens fabricated with indirect additive manufacturing...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343756/radiological-and-clinical-differences-among-three-assisted-technologies-in-pedicle-screw-fixation-of-adult-degenerative-scoliosis
#12
Yong Fan, Jin Peng Du, Ji Jun Liu, Jia Nan Zhang, Shi Chang Liu, Ding Jun Hao
The purpose of this study was to compare the clinical and radiological differences among three advanced guided technologies in adult degenerative scoliosis. A total of 1012 pedicle screws were inserted in 83 patients using a spine robot (group A), 886 screws were implanted in 75 patients using a drill guide template (group B), and 1276 screws were inserted in 109 patients using CT-based navigation (group C). Screw positions were evaluated using postoperative CT scans according to the Gertzbein and Robbins classification...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343662/cost-benefit-performance-simulation-of-robot-assisted-thoracic-surgery-as-required-for-financiall-viability-under-the-2016-revised-reimbursement-paradigm-of-the-japanese-national-health-insurance-system
#13
Naohiro Kajiwara, Yasufumi Kato, Masaru Hagiwara, Masatoshi Kakihana, Tatsuo Ohira, Norihiko Kawate, Norihiko Ikeda
PURPOSE: To discuss the cost-benefit performance (CBP) and establish a medical fee system for robotic-assisted thoracic surgery (RATS) under the Japanese National Health Insurance System (JNHIS), which is a system not yet firmly established. METHODS: All management steps for RATS are identical, such as preoperative and postoperative management. This study examines the CBP based on medical fees of RATS under the JNHIS introduced in 2016. RESULTS: Robotic-assisted laparoscopic prostatectomy (RALP) and robotic-assisted partial nephrectomy (RAPN) now receive insurance reimbursement under the category of use of support devices for endoscopic surgery ($5420 and $3485, respectively)...
January 17, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29343563/robotic-crabs-reveal-that-female-fiddler-crabs-are-sensitive-to-changes-in-male-display-rate
#14
Sophie L Mowles, Michael D Jennions, Patricia R Y Backwell
Males often produce dynamic, repetitive courtship displays that can be demanding to perform and might advertise male quality to females. A key feature of demanding displays is that they can change in intensity: escalating as a male increases his signalling effort, but de-escalating as a signaller becomes fatigued. Here, we investigated whether female fiddler crabs, Uca mjoebergi, are sensitive to changes in male courtship wave rate. We performed playback experiments using robotic male crabs that had the same mean wave rate, but either escalated, de-escalated or remained constant...
January 2018: Biology Letters
https://www.readbyqxmd.com/read/29341585/self-powered-micro-fluidic-transport-system-based-on-triboelectric-nanogenerator-and-electrowetting-technique
#15
Nie Jinhui, Zewei Ren, Jiajia Shao, Chaoran Deng, Liang Xu, Xiangyu Chen, Meicheng Li, Zhong Lin Wang
Electrowetting technique is an actuation method for manipulating position and velocity of fluids in the microchannels. By combining electrowetting technique and a freestanding mode triboelectric nanogenerator (TENG), we have designed a self-powered micro-fluidic transport system. In this system, a mini vehicle is fabricated by using four droplets to carry a pallet (6 mm × 8 mm) and it can transport some tiny object on the track electrodes under the drive of TENG. The motion of TENG can provide both driving power and control signal for the mini vehicle...
January 17, 2018: ACS Nano
https://www.readbyqxmd.com/read/29340932/robotic-scanning-device-for-intraoperative-thyroid-gland-endomicroscopy
#16
Haibo Wang, Shuxin Wang, Jinhua Li, Siyang Zuo
Probe-based confocal laser endomicroscopy has a high potential to be a promising tool that can provide intraoperative high-resolution in vivo morphological imaging at cellular and subcellular levels for thyroidectomy, and allow real-time assessment of tumor margins. However, the typical images acquired with this technique cover a very small area limited by the field of view of the probe, accompanied by tissue deformation and inconsistent probe-tissue contact when operated manually. In this paper, a novel compact robotic device for large area scanning has been developed...
January 16, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29340922/prevention-of-internal-hernia-during-robotic-total-gastrectomy-for-gastric-cancer
#17
Toshiyasu Ojima, Masaki Nakamura, Mikihito Nakamori, Keiji Hayata, Masahiro Katsuda, Toshiaki Tsuji, Shimpei Maruoka, Hiroki Yamaue
BACKGROUND: Postoperative internal hernia (IH) is a potentially life-threatening acute protrusion of viscus through an iatrogenic mesenteric defect. In our retrospective study of 1943 consecutive gastric cancer (GC) patients who had undergone surgery, the incidence of IH after laparoscopic total gastrectomy (LTG) was 4.9%.1 This high incidence seems to be caused by decreased adhesion formation after LTG. There is no consensus regarding orifice management during robotic total gastrectomy (RTG)...
January 16, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29340839/the-cumulative-incidence-and-risk-factors-of-postoperative-inguinal-hernia-in-patients-undergoing-radical-prostatectomy
#18
Ja Yoon Ku, Chan Ho Lee, Won Young Park, Nam Kyung Lee, Seung Hyun Baek, Hong Koo Ha
BACKGROUND: The aim of this study is to investigate the cumulative incidence and risk factors of postoperative inguinal hernia (PIH) in patients undergoing radical prostatectomy, i.e., laparoscopic prostatectomy (LRP) and robot-assisted laparoscopic prostatectomy (RARP). METHODS: This study included 1124 patients who had undergone radical prostatectomy or transurethral resection of bladder tumor from 2011-2016. We compared the cumulative incidence of PIH in the radical prostatectomy groups (460; LRP 341, RARP 119) and the control group (664; transurethral resection of bladder tumor), and we then analyzed the risk factors (age, operative methods, previous abdominal operative history, thickness and width of external oblique muscle and rectus muscle, thickness of abdominal subcutaneous fat layer at Hesselbach's triangle level, body mass index, prostate-specific antigen, operative time, specimen weight, Gleason score, and pathology T-stage) of PIH in the radical prostatectomy groups...
January 16, 2018: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29340816/expanding-indications-of-robotic-thyroidectomy
#19
Se Hyun Paek, Kyung Ho Kang, Sung Jun Park
BACKGROUND: Robotic thyroidectomy has many advantages with comparable oncologic safety over conventional open surgery in low-risk differentiated thyroid cancer cases. However, there have been few reports on the outcomes of patients who have been treated with robotic thyroidectomy for more advanced thyroid cancer. The aim of this study was to investigate the validity of expanding indications of robotic thyroidectomy for more advanced thyroid cancer. METHODS: The data of 80 patients with thyroid cancer who underwent robotic total thyroidectomy between January 2013 and December 2014 performed by a single surgeon at Chung-Ang University Hospital were retrospectively reviewed...
January 16, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29339793/skin-inspired-highly-stretchable-and-conformable-matrix-networks-for-multifunctional-sensing
#20
Qilin Hua, Junlu Sun, Haitao Liu, Rongrong Bao, Ruomeng Yu, Junyi Zhai, Caofeng Pan, Zhong Lin Wang
Mechanosensation electronics (or Electronic skin, e-skin) consists of mechanically flexible and stretchable sensor networks that can detect and quantify various stimuli to mimic the human somatosensory system, with the sensations of touch, heat/cold, and pain in skin through various sensory receptors and neural pathways. Here we present a skin-inspired highly stretchable and conformable matrix network (SCMN) that successfully expands the e-skin sensing functionality including but not limited to temperature, in-plane strain, humidity, light, magnetic field, pressure, and proximity...
January 16, 2018: Nature Communications
keyword
keyword
2623
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"