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https://www.readbyqxmd.com/read/28068732/-concept-for-a-national-implant-registry-to-improve-patient-safety
#1
L Prantl, U von Fritschen, J Liebau, J von Hassel, E M Baur, P M Vogt, R E Giunta, R E Horch
Since the introduction of silicone implants, several events have led to considerable uncertainty among the patients, public, and users. So far, however, the necessary steps to significantly improving patient safety have not been taken in any of these cases. Requiring stricter approvals for medical devices, improving monitoring by the regulatory authorities and the revision of the Medical Devices Directive are all initial steps in the right direction towards a change in policy, but are insufficient as an early warning system...
December 2016: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28067801/easy-handling-of-sensors-and-actuators-over-tcp-ip-networks-by-open-source-hardware-software
#2
Andrés Mejías, Reyes S Herrera, Marco A Márquez, Antonio José Calderón, Isaías González, José Manuel Andújar
There are several specific solutions for accessing sensors and actuators present in any process or system through a TCP/IP network, either local or a wide area type like the Internet. The usage of sensors and actuators of different nature and diverse interfaces (SPI, I2C, analogue, etc.) makes access to them from a network in a homogeneous and secure way more complex. A framework, including both software and hardware resources, is necessary to simplify and unify networked access to these devices. In this paper, a set of open-source software tools, specifically designed to cover the different issues concerning the access to sensors and actuators, and two proposed low-cost hardware architectures to operate with the abovementioned software tools are presented...
January 5, 2017: Sensors
https://www.readbyqxmd.com/read/28060436/single-nanoparticle-detection-using-optical-microcavities
#3
Yanyan Zhi, Xiao-Chong Yu, Qihuang Gong, Lan Yang, Yun-Feng Xiao
Detection of nanoscale objects is highly desirable in various fields such as early-stage disease diagnosis, environmental monitoring and homeland security. Optical microcavity sensors are renowned for ultrahigh sensitivities due to strongly enhanced light-matter interaction. This review focuses on single nanoparticle detection using optical whispering gallery microcavities and photonic crystal microcavities, both of which have been developing rapidly over the past few years. The reactive and dissipative sensing methods, characterized by light-analyte interactions, are explained explicitly...
January 6, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28059945/airway-management-with-a-stereotactic-headframe-in-situ-a-mannequin-study
#4
Melissa Brockerville, Zoe Unger, Nathan C Rowland, Francesco Sammartino, Pirjo H Manninen, Lashmi Venkatraghavan
BACKGROUND: Stereotactic headframe-based imaging is often needed for target localization during surgery for insertion of deep brain stimulators. A major concern during this surgery is the need for emergency airway management while an awake or sedated patient is in the stereotactic headframe. The aim of our study was to determine the ease of emergency airway management with a stereotactic headframe in situ. MATERIALS AND METHODS: We conducted an observational study using a mannequin...
January 4, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28052273/current-status-of-exposed-endoscopic-full-thickness-resection-and-further-development-of-non-exposed-endoscopic-full-thickness-resection
#5
Hirohito Mori, Asadur Rahman, Hideki Kobara, Shintaro Fujihara, Noriko Nishiyama, Maki Ayaki, Tae Matsunaga, Masanori Murakami, Tsumomu Masaki
Endoscopic full-thickness resection (EFTR) is a procedure that makes it possible to access the lesions that are on the wall of the digestive tract via the shortest distance through the mouth. Because of the ultra-minimal invasive nature of the treatment, pure EFTR is a highly promising surgical procedure that allows the radical excision of full-thickness layers of digestive tract tumors using only a flexible endoscope. There are 2 types of EFTR methods: exposed and non-exposed. Considering the risks of contracting infection and intraperitoneal dissemination of tumor cells, non-exposed EFTR is an ideal method...
2017: Digestion
https://www.readbyqxmd.com/read/28051101/loss-tolerant-measurement-device-independent-quantum-private-queries
#6
Liang-Yuan Zhao, Zhen-Qiang Yin, Wei Chen, Yong-Jun Qian, Chun-Mei Zhang, Guang-Can Guo, Zheng-Fu Han
Quantum private queries (QPQ) is an important cryptography protocol aiming to protect both the user's and database's privacy when the database is queried privately. Recently, a variety of practical QPQ protocols based on quantum key distribution (QKD) have been proposed. However, for QKD-based QPQ the user's imperfect detectors can be subjected to some detector- side-channel attacks launched by the dishonest owner of the database. Here, we present a simple example that shows how the detector-blinding attack can damage the security of QKD-based QPQ completely...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28047735/th-ab-202-07-radar-tracking-of-respiratory-motion-in-real-time
#7
A Fung, C Li, C Torres
PURPOSE: To propose a method of real time tracking of respiratory motion in patients undergoing radiation therapy. Radar technology can be employed to detection the movement of diaphragm and thoracic anatomy. METHODS: A radar transceiver was specially designed. During experiment, the radar device was securely attached to a fixed frame. Respiratory motion was simulated with: 1) Varian RPM phantom, 2) Standard Imaging Respiratory Gating Platform. Signals recorded with radar equipment were compared with those measured with Varian RPM system as a reference...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047609/su-f-t-668-irradiating-mouse-brain-with-a-clinical-linear-accelerator
#8
C Perez-Torres
PURPOSE: To design and construct a "mouse jig" device that would allow for irradiation of the mouse brain with a clinical Varian 6 MeV Linear Accelerator. This device must serve as a head immobilizer, gaseous anesthesia delivery, and radiation bolus concurrently. METHODS: The mouse jig was machined out of nylon given that it is inexpensive, easy to machine, and has similar electron density to water. A cylindrical opening with diameter of 16 mm and 40 mm depth was drilled into a nylon block sized 56×56×50 mm (width, length, depth)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045238/secure-low-cost-technique-for-laparoscopic-hepatic-resection-using-the-crush-clamp-method-with-a-bipolar-sealer
#9
Takatsugu Yamamoto, Takahiro Uenishi, Kazuhisa Kaneda, Masato Okawa, Shogo Tanaka, Shoji Kubo
INTRODUCTION: Laparoscopic hepatectomy is difficult because surgeons must perform the transection using many (four and more) energy devices and without direct manual maneuvers. Here we introduce hepatic transection by the classical method with a few (two or three) energy devices. MATERIALS AND SURGICAL TECHNIQUE: We performed laparoscopic hepatectomy for 40 patients with hepatic tumor and liver dysfunction. For parenchymal transection, we used bipolar radiofrequency coagulation forceps connected to a voltage-controlled electrosurgical generator and ultrasonic dissector...
February 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28039639/a-novel-procedure-for-introducing-large-sheet-type-surgical-material-with-a-self-expanding-origami-structure-using-a-slim-trocar-chevron-pleats-procedure
#10
Yuen Nakase, Kei Nakamura, Akira Sougawa, Tomoyuki Nagata, Satoshi Mochizuki, Shouzo Kitai, Seishirou Inaba
BACKGROUND: Large sheet-type surgical materials (e.g., absorbable hemostat, adhesion barrier membranes, and flat surgical mesh) are difficult to introduce into a corporeal cavity using a 5-mm trocar; however, laparoscopic surgeries that use mainly 5-mm trocars are increasing. Furthermore, it is necessary not only to introduce but also to secure the applied surgical material and expand it from the original surgical site. To address these challenges, we developed a novel procedure for introducing such surgical materials into a corporeal cavity using a 5-mm trocar and a self-expanding origami structure, called the "chevron pleats procedure (CPP)"...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28036200/insecurity-of-detector-device-independent-quantum-key-distribution
#11
Shihan Sajeed, Anqi Huang, Shihai Sun, Feihu Xu, Vadim Makarov, Marcos Curty
Detector-device-independent quantum key distribution (DDI-QKD) held the promise of being robust to detector side channels, a major security loophole in quantum key distribution (QKD) implementations. In contrast to what has been claimed, however, we demonstrate that the security of DDI-QKD is not based on postselected entanglement, and we introduce various eavesdropping strategies that show that DDI-QKD is in fact insecure against detector side-channel attacks as well as against other attacks that exploit devices' imperfections of the receiver...
December 16, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/28033282/evaluation-of-counseling-environmental-alteration-on-pharmacy-patient-communication-qualifications-a-case-control-study
#12
Hongyan Gu, Lulu Sun, Rui Jin, Fang Li, Yuanyuan Wei, Zhengzheng Xie
The closed pharmaceutical counseling room was so hard to be established for most of hospitals in China since limited space in the out-patient lobby, which dramatically affected the qualification of medication consultant. Few reports studied the importance of closed pharmaceutical counseling room construction.To investigate the necessary of closed pharmaceutical counseling room construction in the outpatient lobby.The closed pharmaceutical counseling room was established and equipped with hospital electronic information system, patient education flashes, and we-Chat in web...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28032562/a-novel-secure-transfixing-blood-vessel-occluder-comparison-with-the-hemoclip-in-the-porcine-model
#13
Arnold Miller, Nir Lilach, Ana-Maria Botero-Anug, Udi Willenz, Raanan Miller
BACKGROUND: Secure vessel occlusion is critical to the success of all surgical and interventional procedures. The purpose of this study was to compare in vivo the use of the Amsel Vessel Occluder (AVO), a novel occlusion clip device for secure blood vessel closure, with one of the many commercially available hemoclips, the Ligaclip, in the porcine model. METHODS: Vessel closure of arteries and veins was performed on 10 swine to compare the ease of use, safety, and efficacy of the AVO with the Ligaclip as well as the tissue response at 7 and 30 d...
October 5, 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/28029708/comparison-of-maximum-force-to-failure-of-4-thoracostomy-tube-connecting-devices
#14
Ιoannis Psathas, Lysimachos G Papazoglou, Dimitrios Bikiaris, Ioannis Savvas, Georgios Kazakos, Eleni Basdani
OBJECTIVE: To compare the maximum force and displacement to failure of 4 different types of thoracostomy tube connecting devices. STUDY DESIGN: Experimental in vitro study. STUDY POPULATION: Four types of thoracostomy tube connecting devices (n = 10 each). METHODS: Four different connecting device configurations (10 constructs each) were tested by maximum distraction to failure using a dynamometer: (1) CTTWW-a 3-way connector with a male luer slip attached to a thoracostomy tube by a Christmas tree adapter and secured to the tube with 21 gauge orthopedic wire; (2) CTTWRCW-a 3-way connector with a male luer lock with a rotating collar attached to a tube by a Christmas tree adapter and secured to the tube with 21 gauge orthopedic wire; (3) LVSBC-a Lopez valve attached to a tube with its short-barbed connector; and (4) LVLBC-a Lopez valve attached to a tube with its long-barbed connector...
December 28, 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28029142/an-indoor-positioning-system-based-on-wearables-for-ambient-assisted-living
#15
Óscar Belmonte-Fernández, Adrian Puertas-Cabedo, Joaquín Torres-Sospedra, Raúl Montoliu-Colás, Sergi Trilles-Oliver
The urban population is growing at such a rate that by 2050 it is estimated that 84% of the world's population will live in cities, with flats being the most common living place. Moreover, WiFi technology is present in most developed country urban areas, with a quick growth in developing countries. New Ambient-Assisted Living applications will be developed in the near future having user positioning as ground technology: elderly tele-care, energy consumption, security and the like are strongly based on indoor positioning information...
December 25, 2016: Sensors
https://www.readbyqxmd.com/read/28004287/an-efficient-remote-authentication-scheme-for-wireless-body-area-network
#16
Anyembe Andrew Omala, Kittur P Kibiwott, Fagen Li
Wireless body area network (WBAN) provide a mechanism of transmitting a persons physiological data to application providers e.g. hospital. Given the limited range of connectivity associated with WBAN, an intermediate portable device e.g. smartphone, placed within WBAN's connectivity, forwards the data to a remote server. This data, if not protected from an unauthorized access and modification may be lead to poor diagnosis. In order to ensure security and privacy between WBAN and a server at the application provider, several authentication schemes have been proposed...
February 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28004199/the-effect-of-esophagogastroduodenoscopy-probe-insertion-on-the-intracuff-pressure-of-airway-devices-in-children-during-general-anesthesia
#17
Onur Balaban, Mineto Kamata, Mumin Hakim, Dmitry Tumin, Joseph D Tobias
Given the size of the esophagogastroduodenoscopy (EGD) probe and the compressibility of the pediatric airway, the EGD probe may increase the intracuff pressure (IP) of an airway device. The current study evaluated IP changes during EGD examination under general anesthesia in pediatric patients. Following the induction of anesthesia, a laryngeal mask airway (LMA) or endotracheal tube (ETT) was placed without neuromuscular blockade. The IP was measured at baseline, during EGD probe insertion, while the EGD probe was in place, and after probe removal...
December 21, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27997813/quality-criteria-for-medical-device-registries-best-practice-approaches-for-improving-patient-safety-a-systematic-review-of-international-experiences
#18
Charlotte Susanne Niederländer, Christine Kriza, Peter Kolominsky-Rabas
As the benefit of medical device registries (MDRs) depends on their content and quality, it is important to ensure that MDRs have a robust and adequate structure to fulfill their objectives. However, no requirements are specified for the design and content of MDRs. The aim of this work is to analyze different MDRs in the field of implants and to give best practice recommendations for quality criteria regarding their design and development. Areas covered: A systematic literature search performed in databases (Medline, Cochrane Library, Scopus, Embase, CRD York), selected journals and websites identified 66 articles describing either a general MDR structure or the development process of specific registries...
January 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/27995452/an-optimal-approach-for-laparoscopic-d3-lymphadenectomy-plus-complete-mesocolic-excision-d3-cme-for-right-sided-colon-cancer
#19
Daxing Xie, Chaoran Yu, Chun Gao, Hasan Osaiweran, Junbo Hu, Jianping Gong
BACKGROUND: It is common knowledge that high ligation of blood vessels at the D3 level and complete mesocolic excision (CME) are two critical points of right hemicolectomy for right colon cancer (RCC). (1-5) To date, a safe strategy for completing these two procedures under laparoscopic surgery has not been extensively described. The authors provide a video to demonstrate laparoscopic right hemicolectomy (D3 + CME) with an optimal mesentery-defined approach. By identifying three "tri-junctions," this approach facilitates dissection of the entire mesocolon along the embryologic planes as far centrally as possible and enables the high tie of feeding vessels at bifurcation...
December 19, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27991642/dry-writing-of-highly-conductive-electrodes-on-papers-by-using-silver-nanoparticle-graphene-hybrid-pencils
#20
Jun-Ho Park, Myung-Joo Park, Jang-Sik Lee
The development of paper electronics would enable realization of extremely cheap devices for portable, disposable, and environmentally-benign electronics. Here, we propose a simple dry-writing tool similar to a pencil, which can be used to draw electrically conducting lines on paper for use in paper-based electronic devices. The fabricated pencil is composed of silver nanoparticles decorated on graphene layers to construct layered hybrid nanostructures. This pencil can draw highly conductive lines that are flexible and foldable on conventional papers...
December 19, 2016: Nanoscale
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