In 1990, a detachable platinum coil device, the Guglielmi Detachable Coil (GDC), was introduced. The detachable coil obstructs the aneurysmal lumen and induces secondary thrombosis of the aneurysm. The introduction of an alternative to neurosurgical clipping gave rise to the need for identifying the...
Number of AT&T of connected device subscribers 2009-2023 Smartphone share of handset unit sales in the United Kingdom (UK) 2010-2013 Mobile wireless: average local monthly bill in the U.S. BlackBerry net income/loss 2009-2024 Lumen Technologies, Inc. operating profit 2012-2023 LG Electronics...
SummaryThe use of flexible fibre-optic devices for positioning single-lumen endobronchial tubes in one-lung anaesthesia has been assessed. The technique is... C Aps,RM Towey - 《Anaesthesia》 被引量: 20发表: 1981年 Cost analysis of single-use (Ambu® aScope™) and reusable bronchoscopes ...
multilumen central venous catheters and nonimpregnated catheters.Expected incidence of CR-BSI and death attributable to antiseptic-impregnated and standard catheter use; direct medical costs for both types of catheters.In the base-case analysis, use of antiseptic-impregnated catheters resulted in a ...
Two low-cost test methods for measuring the lumen maintenance of off-grid lighting products, a box-photometer and a tube-photometer, were compared to a high-accuracy integrating sphere system in order to evaluate the measurement error of the low-cost testing devices. Results from this study in...
The degree of internal carotid lumen reduction was measured bilaterally in all patients (602 carotid arteries); carotid stenosis of 60% or more was found in 399 carotid arteries. Results: Of the 103 (34%) CT scans positive for cerebral lesions, 58% were lacunar. No significant association ...
Finally, assembling an array of many LEDs is difficult and labor intensive, further pushing up costs (see the TechZone article “LED Packaging and Efficacy Advances Boost Lumen Density”). By operating the LEDs at higher currents, fewer devices can be used for the same luminosity, cutting...
Especially when designing LED systems, consideration has to be given to the fact that LED light efficacy (lumen per Watt) will continue to increase due to ongoing progress in LED technology development. All this drives the need for intelligent digital control and ...
Lumen-apposing metal stents (LAMSs) are preferred over plastic stents due to their higher clinical success rate and lower complication rates [4]. However, their high cost can pose a challenge, particularly in countries where patients are responsible for covering the expenses of the materials used...
The main reasons for the popularity of the HPS lamp compared with the discharge and incandescent lamps are its high lumen/watt, smaller size, and lower cost. Lately, increasing fuel prices and environmental issues have stressed the need to replace existing lamps with more energy-efficient and ...