keyword
MENU ▼
Read by QxMD icon Read
search

bionic

keyword
https://www.readbyqxmd.com/read/28217275/multicentre-evaluation-of-the-na%C3%A3-da-ci-q70-sound-processor-feedback-from-cochlear-implant-users-and-professionals
#1
Jeanette Martin, Christine Poncet-Wallet, Angelika Illg, Sarah Perrin-Webb, Lise Henderson, Nathalie Noël-Petroff, Gennaro Auletta, Maria Grazia Barezzani, Karim Houri, Indian Research Group, Heike Bagus, Ulrich Hoppe, Jane Humphries, Wiebke van Treeck, Jeroen J Briaire, Martina Brendel, Nathalie Mathias
The aim of this survey was to gather data from both implant recipients and professionals on the ease of use of the Naída CI Q70 (Naída CI) sound processor from Advanced Bionics and on the usefulness of the new functions and features available. A secondary objective was to investigate fitting practices with the new processor. A comprehensive user satisfaction survey was conducted in a total of 186 subjects from 24 centres. In parallel, 23 professional questionnaires were collected from 11 centres. Overall, there was high satisfaction with the Naída CI processor from adults, children, experienced and new CI users as well as from professionals...
August 23, 2016: Audiology Research
https://www.readbyqxmd.com/read/28216124/the-pattern-and-degree-of-capsular-fibrous-sheaths-surrounding-cochlear-electrode-arrays
#2
Reuven Ishai, Barbara S Herrmann, Joseph B Nadol, Alicia M Quesnel
An inflammatory tissue reaction around the electrode array of a cochlear implant (CI) is common, in particular at the electrode insertion region (cochleostomy) where mechanical trauma often occurs. However, the factors determining the amount and causes of fibrous reaction surrounding the stimulating electrode, especially medially near the perimodiolar location, are unclear. Temporal bone (TB) specimens from patients who had undergone cochlear implantation during life with either Advanced Bionics (AB) Clarion (TM) or HiRes90K(TM) (Sylmar, CA, USA) devices that have a half-band and a pre-curved electrode, or Cochlear (TM) Nucleus (Sydney, Australia) device that have a full-band and a straight electrode were evaluated...
February 16, 2017: Hearing Research
https://www.readbyqxmd.com/read/28211795/a-murine-model-of-a-novel-surgical-architecture-for-proprioceptive-muscle-feedback-and-its-potential-application-to-control-of-advanced-limb-prostheses
#3
Tyler R Clites, Matthew Carty, Shriya Srinivasan, Anthony Zorzos, Hugh Herr
<i>Objective:</i> Proprioceptive mechanisms play a critical role in both reflexive and volitional lower extremity control. Significant strides have been made in the development of bionic limbs that are capable of bi-directional communication with the peripheral nervous system, but none of these systems have been capable of providing physiologically-relevant muscle-based proprioceptive feedback through natural neural pathways. In this study, we present the Agonist-antagonist Myoplastic Interface (AMI), a surgical approach with the capacity to provide graded kinesthetic feedback from a prosthesis through mechanical activation of native mechanoreceptors within residual agonist-antagonist muscle pairs...
February 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28203269/bionic-vision-based-intelligent-power-line-inspection-system
#4
Qingwu Li, Yunpeng Ma, Feijia He, Shuya Xi, Jinxin Xu
Detecting the threats of the external obstacles to the power lines can ensure the stability of the power system. Inspired by the attention mechanism and binocular vision of human visual system, an intelligent power line inspection system is presented in this paper. Human visual attention mechanism in this intelligent inspection system is used to detect and track power lines in image sequences according to the shape information of power lines, and the binocular visual model is used to calculate the 3D coordinate information of obstacles and power lines...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28203220/proof-of-concept-of-an-online-emg-based-decoding-of-hand-postures-and-individual-digit-forces-for-prosthetic-hand-control
#5
Alycia Gailey, Panagiotis Artemiadis, Marco Santello
INTRODUCTION: Options currently available to individuals with upper limb loss range from prosthetic hands that can perform many movements, but require more cognitive effort to control, to simpler terminal devices with limited functional abilities. We attempted to address this issue by designing a myoelectric control system to modulate prosthetic hand posture and digit force distribution. METHODS: We recorded surface electromyographic (EMG) signals from five forearm muscles in eight able-bodied subjects while they modulated hand posture and the flexion force distribution of individual fingers...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28199121/smart-contact-lenses-with-graphene-coating-for-electromagnetic-interference-shielding-and-dehydration-protection
#6
Sangkyu Lee, Insu Jo, Sangmin Kang, Bongchul Jang, Joonhee Moon, Jong Bo Park, Soochang Lee, Sichul Rho, Youngsoo Kim, Byung Hee Hong
Recently, smart contact lenses with electronic circuits have been proposed for various sensor and display applications where the use of flexible and biologically stable electrode materials is essential. Graphene is an atomically thin carbon material with a two-dimensional hexagonal lattice that shows outstanding electrical and mechanical properties as well as excellent biocompatibility. In addition, graphene is capable of protecting eyes from electromagnectic (EM) waves that may cause eye diseases such as cataracts...
February 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28196304/cell-guidance-on-nanostructured-metal-based-surfaces
#7
REVIEW
Yulia Zhukova, Ekaterina V Skorb
Metal surface nanostructuring to guide cell behavior is an attractive strategy to improve parts of medical implants, lab-on-a-chip, soft robotics, self-assembled microdevices, and bionic devices. Here, we discus important parameters, relevant trends, and specific examples of metal surface nanostructuring to guide cell behavior on metal-based hybrid surfaces. Surface nanostructuring allows precise control of cell morphology, adhesion, internal organization, and function. Pre-organized metal nanostructuring and dynamic stimuli-responsive surfaces are used to study various cell behaviors...
February 14, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28183615/a-multi-walled-silk-fibroin-silk-sericin-nerve-conduit-coated-with-poly-lactic-co-glycolic-acid-sheath-for-peripheral-nerve-regeneration
#8
Jianwei Rao, Yan Cheng, Yanxiao Liu, Zhou Ye, Beilei Zhan, Daping Quan, Yangbin Xu
The linearly oriented multi-walled silk fibroin/silk sericin (SF/SS) nerve conduits (NCs) can provide physical cues similar to native peripheral nerve fasciculi, but the mechanical properties of which are not excellent enough. In this study, NCs with a novel and bionic design with dual structures were developed. The important features of our NCs is that the internal skeleton (the multi-walled SF/SS conduits) has a bionic structure similar to the architecture of native peripheral nerve fasciculi, which is beneficial for nerve regeneration, and the outer sheath (the hollow poly(lactic-co-glycolic acid) [PLGA] conduits) could provide strong mechanical protection for the internal skeleton...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28182541/a-new-magnetotactic-bacteria-optimization-algorithm-based-on-moment-migration
#9
Hongwei Mo, Lili Liu, Jiao Zhao
Magnetotactic bacteria is a kind of polyphyletic group of prokaryotes with the characteristics of magnetotaxis that make them orient and swim along geomagnetic field lines. Its distinct biology characteristics are useful to design new optimization technology. In this paper, a new bionic optimization algorithm named Magnetotactic Bacteria Moment Migration Algorithm (MBMMA) is proposed. In the proposed algorithm, the moments of a chain of magnetosomes are considered as solutions. The moments of relative good solutions can migrate each other to enhance the diversity of the MBMMA...
January 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28176571/nurse-grasps-opportunity-to-return-to-work-thanks-to-bionic-hand
#10
(no author information available yet)
A staff nurse who had her arm amputated due to a genetic condition is back at work after having a bionic hand fitted by surgeons at her hospital trust.
February 8, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28141580/bio-inspired-annelid-robot-a-dielectric-elastomer-actuated-soft-robot
#11
Liang Xu, Han-Qing Chen, Jiang Zou, Wan-Ting Dong, Guo-Ying Gu, Li-Min Zhu, Xiang-Yang Zhu
Biologically inspired robots with inherent softness and body compliance increasingly attract attention in the field of robotics. Aimed at solving existing problems with soft robots, regarding actuation technology and biological principles, this paper presents a soft bio-inspired annelid robot driven by dielectric elastomer actuators (DEAs) that can advance on flat rigid surfaces. The DEA, a kind of soft functional actuator, is designed and fabricated to mimic the axial elongation and differential friction of a single annelid body segment...
January 31, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28134486/superamphiphobic-bionic-proboscis-for-contamination-free-manipulation-of-nano-and-core-shell-droplets
#12
William S Y Wong, Guanyu Liu, Antonio Tricoli
Manipulation of nanoliter droplets is a key step for many emerging technologies including ultracompact microfluidics devices, 3D and flexible electronic printing. Despite progress, contamination-free generation and release of nanoliter droplets by compact low-cost devices remains elusive. In the present study, inspired by butterflies' minute manipulation of fluids, the authors have engineered a superamphiphobic bionic proboscis (SAP) layout that surpasses synthetic and natural designs. The authors demonstrate the scalable fabrication of SAPs with tunable inner diameters down to 50 µm by the rapid gas-phase nanotexturing of the outer and inner surfaces of readily available hypodermic needles...
January 30, 2017: Small
https://www.readbyqxmd.com/read/28118698/wearable-robotic-exoskeleton-for-over-ground-gait-training-in-sub-acute-and-chronic-hemiparetic-stroke-patients-preliminary-results
#13
Franco Molteni, Giulio Gasperini, Marina Gaffuri, Maria Colombo, Chiara Giovanzana, Chiara Lorenzon, Nico Farina, Giovanni Cannaviello, Stefano Scarano, Davide Proserpio, Davide Liberali, Eleonora Guanziroli
BACKGROUND: Recovery of therapeutic or functional ambulatory capacity in post-stroke patients is a primary goal of rehabilitation. Wearable powered exoskeletons allow patients with gait dysfunctions to perform over-ground gait training, even immediately after the acute event. AIM: To investigate the feasibility and the clinical effects of an over-ground walking training with a wearable powered exoskeleton in sub-acute and chronic stroke patients. DESIGN: Prospective, pilot pre-post, open label, non-randomized experimental study...
24, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28107625/gold-nanoshell-mediated-remote-myotube-activation
#14
Attilio Marino, Satoshi Arai, Yanyan Hou, Andrea Degl'Innocenti, Valentina Cappello, Barbara Mazzolai, Young-Tae Chang, Virgilio Mattoli, Madoka Suzuki, Gianni Ciofani
Mild heat stimulation of muscle cells within the physiological range represents an intriguing approach for the modulation of their functions. In this work, photothermal conversion was exploited to remotely stimulate striated muscle cells by using gold nanoshells (NS) in combination with near-infrared (NIR) radiation. Temperature increments of approximately 5°C were recorded by using an intracellular fluorescent molecular thermometer and were demonstrated to efficiently induce myotube contraction. The mechanism at the base of this phenomenon was thoroughly investigated and was observed to be a Ca2+-independent event directly involving actin-myosin interactions...
January 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28105954/the-amp-foot-3-new-generation-propulsive-prosthetic-feet-with-explosive-motion-characteristics-design-and-validation
#15
Pierre Cherelle, Victor Grosu, Manuel Cestari, Bram Vanderborght, Dirk Lefeber
The last decades, rehabilitation has become a challenging context for mechatronical engineering. From the state-of-the-art it is seen that the field of prosthetics offers very promising perspectives to roboticist. Today's prosthetic feet tend to improve amputee walking experience by delivering the necessary push-off forces while walking. Therefore, several new types of (compliant) actuators are developed in order to fulfill the torque and power requirements of a sound ankle-foot complex with minimized power consumption...
December 19, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28104408/adding-simultaneous-stimulating-channels-to-reduce-power-consumption-in-cochlear-implants
#16
Florian Langner, Aniket A Saoji, Andreas Büchner, Waldo Nogueira
Sound coding strategies for Cochlear Implant (CI) listeners can be used to control the trade-off between speech performance and power consumption. Most commercial CI strategies use non-simultaneous channel stimulation, stimulating only one electrode at a time. One could add parallel simultaneous stimulating channels such that the electrical interaction between channels is increased. This would produce spectral smearing, because the electrical fields of the simultaneous stimulated channels interact, but also power savings...
January 16, 2017: Hearing Research
https://www.readbyqxmd.com/read/28093018/algorithm-for-bionic-hand-reconstruction-in-patients-with-global-brachial-plexopathies
#17
Laura A Hruby, Agnes Sturma, Johannes A Mayer, Anna Pittermann, Stefan Salminger, Oskar C Aszmann
OBJECTIVE Global brachial plexus lesions with multiple root avulsions are among the most severe nerve injuries, leading to lifelong disability. Fortunately, in most cases primary and secondary reconstructions provide a stable shoulder and restore sufficient arm function. Restoration of biological hand function, however, remains a reconstructive goal that is difficult to reach. The recently introduced concept of bionic reconstruction overcomes biological limitations of classic reconstructive surgery to restore hand function by combining selective nerve and muscle transfers with elective amputation of the functionless hand and its replacement with a prosthetic device...
January 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28053309/drag-reduction-through-self-texturing-compliant-bionic-materials
#18
Eryong Liu, Longyang Li, Gang Wang, Zhixiang Zeng, Wenjie Zhao, Qunji Xue
Compliant fish skin is effectively in reducing drag, thus the design and application of compliant bionic materials may be a good choice for drag reduction. Here we consider the drag reduction of compliant bionic materials. First, ZnO and PDMS mesh modified with n-octadecane were prepared, the drag reduction of self-texturing compliant n-octadecane were studied. The results show that the mesh modified by ZnO and PDMS possess excellent lipophilic and hydrophobic, thus n-octadecane at solid, semisolid and liquid state all have good adhesion with modified mesh...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28045836/effects-of-stimulus-polarity-and-artifact-reduction-method-on-the-electrically-evoked-compound-action-potential
#19
Michelle L Hughes, Jenny L Goehring, Jacquelyn L Baudhuin
OBJECTIVE: Previous research from our laboratory comparing electrically evoked compound action potential (ECAP) artifact reduction methods has shown larger amplitudes and lower thresholds with cathodic-leading forward masking (CathFM) than with alternating polarity (AltPol). One interpretation of this result is that the anodic-leading phase used with AltPol elicits a less excitatory response (in contrast to results from recent studies with humans), which when averaged with responses to cathodic-leading stimuli, results in smaller amplitudes...
December 30, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28018834/detailed-measurement-of-wall-strain-with-3d-speckle-tracking-in-the-aortic-root-a-case-of-bionic-support-for-clinical-decision-making
#20
Sebastian Vogt, Konstantinos Karatolios, Andreas Wittek, Christopher Blasé, Anette Ramaswamy, Nikolas Mirow, Rainer Moosdorf
Three-dimensional (3D) wall motion tracking (WMT) based on ultrasound imaging enables estimation of aortic wall motion and deformation. It provides insights into changes in vascular compliance and vessel wall properties essential for understanding the pathogenesis and progression of aortic diseases. In this report, we employed the novel 3D WMT analysis on the ascending aorta aneurysm (AA) to estimate local aortic wall motion and strain in case of a patient scheduled for replacement of the aortic root. Although progression of the diameter indicates surgical therapy, at present we addressed the question for optimal surgical time point...
December 2016: Thoracic and Cardiovascular Surgeon Reports
keyword
keyword
63772
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"