Background: No stent is yet available for tapering coronary arteries. The purpose of the present study is to evaluate the applicability, efficacy and safety of a novel tapered, polymer-free sirolimus eluting stent (t-PFSES) specifically designed for tapering coronary arteries. Methods: 28 pigs underwent the placement of 56 oversized stents (control, n = 28, t-PFSES, n = 28), and quantitative co...

Abstract Background Equine small intestinal resection and anastomosis is a procedure where optimizing speed, without compromising integrity, advantageous. There are range of different needle holders available, but little published on the impact surgical instrumentation has technique in veterinary medicine. The objectives this study were to investigate if holder type influences construction time...

Chuck holders are widely used for jobs with high precision. A chuck holder consists of a nut tapered surface and thin-slotted clamping sleeve typically made hardened steel named collet. are, essentially, wedge mechanisms. In this paper, we investigated the reactions strains due to forces during chip removal process in contact elements or jaws collet by means mathematical analysis. Deflections a...

Abstract Composite components combine the benefits of different materials, leading to improved product properties, enhanced resource- and energy efficiency widening spectrum. Draw-forging is unique combination deep-drawing cold forging, where a core material encapsulated within thin sheet metal blank. Previously, basic draw-forging process only allowed covering shaft tip, covered length was lim...