Artificial heart valve

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    Mechanical Heart valves are designed to mimic natural heart valves as closely as possible. The valve is implanted in the heart of the patient where the damaged heart valve was removed. Artificial heart valves allows for correct blood flow through the heart by opening and closing with each heartbeat (St Jude Medical, n.d.). The Medtronic mechanical heart valve contains two leaflets (Medtronic, 2011). The pressure in the heart causes the leaflets to open and close, allowing blood flow in only one direction (Allen K, 2011). The valve is made of solid pyrolytic carbon and has a titanium strengthening band that provides for a thin yet strong orifice (Van Nooten GJ, 2009). This makes the valve extremely durable and able to last throughout a patient’s lifetime. The valve can be used on many different patients as it is available in sizes from 16 mm to 26 mm for aortic valve replacement (Medtronic, 2011).…

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    Carpentier Edwards Magna Ease Aortic Heart Valve Chelsea Gibbs University of Utah Statement of Purpose: This report will look at the biomaterials used in the Carpentier-Edwards Perimount Magna Ease Aortic Heart Valve (CEPME) (Edwards Lifesciences LLC, Irvine, CA) and some of the biocompatibility issues found with this device. The CEPME bioprosthesis is designed to replace a diseased aortic heart valve that is no longer functioning properly and the tissue cannot be repaired. This device is also…

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    The Electrocuted Man One stormy night, as I was out walking just outside of Lime Spring, Iowa, lightning began flashing every second across the sky. The wind developed a creepy whistle to it. Whoooo! Whooo! While I walked across the bridge over the Upper Iowa River, the water started to rise. Higher and higher every second. Soon the water was over the bridge. I started to run full sprint, so I wouldn’t get caught in the rushing water. As I was running, I came to a halt. The rain was still…

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    labquest and set up for new data collection. Rubber stopper assembly obtained and connected to plastic tubing and valves. Connector attached at free end of tubing to the gas pressure sensor with a clockwise turn. Two-way valve left open. Rubber-stopper assembly inserted tightly into the 125 mL Erlenmeyer flask. Closed the two way valve so it was perpendicular with valve stem. Mode changed to selected events on labquest. Graph settings changed to display pressure vs. temperature graph,…

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    Home Roof Research Paper

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    Would you believe that in most first time cases of home roofing repair, the leak is actually made worse? Or worse yet, in a good many cases, the attempt to repair one leak only leads to the creation of even more leaks? So read on and learn a few tips from the pros, on how you can get it right the first time. Water Can Travel Under a Roof Leak The very first thing you have to do if you have water dripping down through your ceiling, is determine where the leak is coming from. You see once water…

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    Mechanical heart valves provide their greatest benefit by replacing a fatigued natural valve with a prosthesis that was specifically engineered for the variety of patients who experience heart valve disease, thus relieving the patient of most associated conditions and improving their quality of life. However, throughout the last half century there have been many cases of structural failure and induced conditions such as thrombosis due to the materials used in these devices. Through the many case…

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    The Edwards SAPIEN heart valve is a collapsible aortic heart valve that can be introduced into the body via a catheter-based delivery system. The valve is designed to replace a patient’s diseased aortic valve without traditional open-heart surgery and while the heart continues to beat. The valve can be implanted in patients using the fransfemoral technique meaning delivered thorough the femoral artery or trans-apical technique meaning delivered via a small incision between the ribs. Prior to…

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    Faucet Repair Case Study

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    Before calling a plumber in Arlington, check the water pressure at other faucets. If the water pressure is low only at a single faucet, first ensure the shut off valve is open. Next, inspect the aerator for clogging due to hard water sediment. Soaking in vinegar and scrubbing with a soft brush should correct the problem. Otherwise, replace the aerator. While the aerator is off check the water pressure at the faucet. If low, a problem is affecting the faucet. Faucets receive significant use,…

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    Harry Reid Research Paper

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    Harry Reid was born on December 2, 1939 in Searchlight, Nevada. Harry was the third of four sons born to a modest family. His mother’s name was Inez Orena, and his father Harry Vincent Reid was a miner. Reid’s home had no indoor toilet, telephone, or hot water. Harry Reid committed himself to education at a young age. Since there was no local school in Searchlight, Nevada Reid went to live with relatives in Henderson, Nevada in order to attend high school. Reid was involved in football, and…

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    Heat Transfer Lab Report

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    Next, the arrow icon was clicked to begin measuring temperatures. After that, the water drain valve was closed tightly. Next, the water flow was set to 2 gpm, and the steam valves were opened. Flow rate oscillated up and down during the process of heating, so adjustment was required to maintain the desired flow rate. Then, temperatures were recorded if stabilization and no significant changes occurred. Next, the tubes were examined, and the transition between boiling and non-boiling heat…

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