Computer Integrated Surgery essays

Computer Integrated Surgery essays The ever-increasing requirement for intricate, meticulous, and minimally invasive surgery is driving the hunt for ways to use computers for linking preoperative plans and human tools. Computer-Integrated Surgery (CIS) systems transform preoperative images and other information into models of individual patients. Through the aid of CIS systems, clinicians are able to develop an optimized patient intervention plan, register preoperative data to the actual patient in the operating room, and then use a variety of means, such as robots and image overlay displays, to assist in the accurate execution of the planned interventions. CIS systems also perform complex postoperative analysis of these interventions. CIS systems are not designed to replace healthcare professionals, but to enhance surgeons dexterity, visual feedback, and information integration. In some cases, surgeons can supervise CIS systems that carry our specific treatment steps, such as inserting a needle or machining bone . In other cases, CIS will provide information to help surgeons execute tasks manually, such as using computer graphic overlays on a surgeons field of view. In the usual course of events, CIS systems are able to provide new capabilities that transcend human limitations in surgery. This paper will focus on the robotics technology and imaging involved with orthopedic procedures (eg. total hip replacement). The growing demand for intricate, exact, and modestly invasive surgery is driving the search for ways to use computers for linking preoperative plans and human tools. Computers, used in conjunction with advance surgical-assist devices, will fundamentally alter the procedures carried out in the future. Computer-Integrated Surgery systems log and track all relevant data, which lead to new levels of quantitative patient outcomes. CIS transcend human motor skills; enable less invasive procedures with real-time image feedback, and they s...

Mariana Trench Facts and Location

Mariana Trench Facts and Location The Mariana Trench (also called the Marianas Trench) is the deepest part of the ocean. This trench lies in an area where two of the Earths plates- the Pacific Plate and the Philippine Plate- come together. The Pacific plate dives under the Philippine plate, which also partially gets pulled along. It is also thought that water can be carried with it, and may contribute to strong earthquakes by hydrating rock and lubricating the plates, which might lead to a sudden slip. There are many trenches in the ocean, but because of the location of this trench, it is the deepest. The Mariana Trench is located in an area of old seafloor, made up of lava, which is dense and causes the seafloor to settle further. Plus, since the trench is so far away from any rivers, it does not get filled with sediment like many other oceanic trenches, which also contributes to its extreme depth. Location The Mariana Trench is located in the western Pacific Ocean, east of the Philippines and about 120 miles east of the Mariana Islands. In 2009, President Bush declared the area surrounding Mariana Trench as a wildlife refuge, called the Marianas Trench Marine National Monument, which covers approximately 95,216 square miles. Size The trench is 1,554 miles long and 44 miles wide. The trench is more than 5 times wider than it is deep. The deepest point of the trench- which is known as the Challenger Deep- is almost 7 miles (over 36,000 feet) deep and is a bathtub-shaped depression. The trench is so deep that at the bottom that the water pressure is eight tons per square inch. Water Temperature The water temperature in the deepest part of the ocean is a chilly 33-39 degrees Fahrenheit- just above freezing. Life in the Trench The bottom of deep areas like the Mariana Trench is composed of an ooze made up of the shells of plankton. While the trench and areas like it havent been fully explored, we know that there are organisms that can survive at this depth, including bacteria, microorganisms, protists (foraminifera, xenophyophores, shrimp-like amphipods, and possibly even some fish. Exploring the Trench The first trip to the Challenger Deep was made by Jacques Piccard and Don Walsh in 1960. They didnt spend much time at the bottom, and couldnt see much as their sub kicked up too much sediment, but they did report seeing some flatfish. Voyages to the Mariana Trench have been made since then to map the area and collect samples, but humans had not been to the deepest point in the trench until 2012. In March 2012, James Cameron successfully completed the first solo, human mission to the Challenger Deep. Sources Alden, Andrew. 2009. Why the Mariana Trench is So Deep.Dohrer, Elizabeth. 2012. Mariana Trench: The Deepest Depths. LiveScience.Jackson, Nicholas. 2011. Racing to the Bottom: Exploring the Deepest Point on Earth. The Atlantic.Lovett, Richard A. 2012. How the Mariana Trench Became the Earths Deepest Point. National Geographic Daily News.NASA Earth Observatory. 2012. New View of the Deepest Trench.Roach, John. 2005. Life is Found Thriving at Oceans Deepest Point. National Geographic.USGS. Understanding Plate Motions.