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Developments with artificial hearts
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The First Artificial Heart Transplant
History was made on December 02, 1982 when Barney Clark became the first recipient of an artificial heart transplant, which was performed by the medical staff at the University of Utah Medical Center. Although Barney Clark was the center of attention, there were many events that led up to this historical moment.
The development of the artificial heart began in the early 1950’s. The initial prototype, developed in 1970’s by the artificial developmental staff at the University of Utah, allowed 50 hours of sustained life in a sheep. Although this was called a success, the implantation of the artificial heart left the sheep in a weakened state. It wasn’t until late 1970’s and the early 1980’s where the improvement of the artificial heart actually received attention as a possible alternative to a heart transplant. The remodeled product of the early 1970’s did more than just the 50 hours of sustained life; it enabled the cow to live longer and to live a relatively normal life, with the exception of a machine attached to the animal.
With this improvement, Dr. Willem J. Kolff, the head of the artificial developmental program at the University of Utah, and Dr. William DeVries, the head cardiac surgeon at the University of Utah, decided to take this device further. They wanted to develop a heart based on the heart tested in farm animals, to place into a human. This was done with the help of Dr. Robert Jarvik who developed the Jarvik-7. This device was made of plastic and aluminum. With all that they had accomplished, the staff at the University of Utah’s artificial development program still had to wait 2 years before they found the right candidate for the project.
Often, when the heart of an individual fails, the brain, the intestines, and the lungs will usually fail as well. Thus in choosing an individual, they had to find a person who only had cardiac complications and no associated organ failure. They also had to find a patient that was not eligible for a traditional heart transplant.
Attention Getter: A week and a half ago, there was a news article reporting that Dr. Bud Frazier was being honored for performing the most heart transplants nationwide. Specifically, he performed 1,500 heart transplants and implanted 1,000 left ventricular assist devices. He is also the man who invented the device. Where did the remarkable research and advances begin for organ transplants in human beings, and how did it make progress?
Stephanie Lee MS in Medical Device Innovation Personal Statement This past January, I had the most enriching opportunity to dissect and study the thoracic cavity of a human cadaver through the Advanced Cardiac Anatomy course held by the UMN. For the first time, I held a human heart within my hands, studied its anatomy, and was also able to closely examine the placement of a dual-chamber defibrillator. My company, Heraeus Medical Components, specializes in products for cardiac rhythm/heart failure management, so this was extra meaningful for me to not only see the leads, but also follow them to the sites of therapy within the heart. In a room of twenty-four cadavers, could I have somehow impacted any one of these patients’ lives?
Japan is an island nation off the coast of East Asia. It is made up of four large islands and about 3,900 smaller ones. On a map, they form a thin crescent moon. All together, they form an area about the size of Montana. To the west, the sea of Japan separates it from its nearest neighbors, Korea and China. To the east lies the Pacific ocean. Japan has a moderate climate. Summers are nice. Winters are mild, with heavy snowfall limited to the north. Japan makes crops due to rain in the summer.
Langston Hughes was an African American poet who emerged during the Harlem Renaissance. The Harlem Renaissance strongly influenced most of Langston Hughes’s writing. In such works as “Dream”, “Still Here”, “Dream Deferred”, and “Justice” you see the clear messages that are trying to be voiced through his work.
The country of Japan is the northeastern clump of islands off of Asia’s mainland. The approximate coordinates are 35°N, 136°E. The country has four main islands, Honshu, Hokkaido, Kyushu, and Shikoku, and over 2,000 smaller islands in which all are completely surrounded seas and oceans. These bodies of water include the Sea of Japan, East China Sea, Philippine Sea, and the main surrounding water body, the Pacific Ocean. The distance to fly over the Pacific Ocean from Tokyo, Japan to Denver, Colorado, U.S. is approximately 5,852 miles, which would take about 12 hours to travel. With its land mass equal to about 377,915 square kilometers, the country is slightly smaller than the state of California.
As many know, the capital of Japan is Tokyo. The Japanese use the metric system like many European countries and their currency is the Japanese Yen. Japan is located on an archipelago just off the eastern shore of Asia and is surrounded by the Sea of Okhotsk, the East China Sea, the Sea of Japan, and the Pacific Ocean. Japan is slightly smaller
Now imagine if it were you, that needed a liver, heart, or other organ transplant. You want to live to see so much more in life, but you did not get on the list in time and there is a shortage in organ donors. You must say good bye to life, your loved ones and every thing else. This is not a good thing to imagine, yet people die everyday with this feeling.
Unfortunately, the life-saving potential of transplantation is limited by the shortage of organs available for donation. In general, several suitable organs from deceased individuals are not harvested for donation (for reasons that will be discussed later) and this largely contributes to the shortage1. In 1968, the Uniform Anatomical Gift Act gave individuals the right to donate organs and tissue in the United States1. Donors can either be living or deceased. Living donors are individuals who choose to donate portions of vital organs or a single kidney. Their donations can be directed to a specific recipient or can be an indirect altruistic donation; however, altruistic donations are very rare. Majority of donations come from deceased donors2. Deceased donors are individuals who have been medically declared dead, and who have previously registered as organ donors or whose legal representatives (usually their family members) have authorized organ donation on their behalf. One deceased donor can make up to eight donations from different organs, and therefore, can save up to eight lives4. Candidates for donation are chosen based on their blood-type (it must match the donated organ) and their medical need for a donation (the most critically ill patients are more likely to receive donations). The organs that are currently approved for transplantation are the kidney, heart, lung, and liver. Although living donations are a significant proportion of donations in the United States, this paper will focus on increasing the number of deceased
One of the most important and prevalent issues in healthcare discussed nowadays is the concern of the organ donation shortage. As the topic of organ donation shortages continues to be a growing problem, the government and many hospitals are also increasingly trying to find ways to improve the number of organ donations. In the United States alone, at least 6000 patients die each year while on waiting lists for new organs (Petersen & Lippert-Rasmussen, 2011). Although thousands of transplant candidates die from end-stage diseases of vital organs while waiting for a suitable organ, only a fraction of eligible organ donors actually donate. Hence, the stark discrepancy in transplantable organ supply and demand is one of the reasons that exacerbate this organ donation shortage (Parker, Winslade, & Paine, 2002). In the past, many people sought the supply of transplantable organs from cadaver donors. However, when many ethical issues arose about how to determine whether someone is truly dead by either cardiopulmonary or neurological conditions (Tong, 2007), many healthcare professionals and transplant candidates switched their focus on obtaining transplantable organs from living donors instead. As a result, in 2001, the number of living donors surpassed the number of cadaver donors for the first time (Tong, 2007).
When debating who will receive a heart transplant there is a list of criteria that must be met before the person becomes eligible to receive a transplant. The United Nation for Organ Transplant or UNO decides where each organ will go. UNO will first look at who is the sickest and without the heart transplant will pass away first. ( Trezpaz,DiMartni,2000). The patient that will receive the heart also has to be compatible with the person who had the heart. What this means is that they look at blood type, height, weight, among other medical factor to make sure that the person who receive the heart will not reject it( Uno,2015). Distance from the organ transplant center also plays a factor in who will receive the organ, Hearts can only be preserved
Japan is an island in the pacific with a land area of 140,728 square miles and a total area of 145,913 square miles. The climate there is mainly subtropical and has many unusual high rainfalls. There, typhoons are common and usually occur between the months of August and October ("Weather in Japan" 1).
Japan attracts millions of travelers annually. Many are attracted to the beautiful rural areas that dot the country. The Japanese Alps attract many skiing or mountain climbing enthusiasts. Tokyo and other large metropolitan areas, with their bustling cityscapes and prime shopping areas makes them great tourist attractions.
There are noticeable features of the act which can support the IP and copyrights for DVDS and DVDs Games data products, but there are some uncertainties in the law which can only protect the rights of the owner’s patent as far as their own region conversely if the owner wants to protect their works or product in another country then they need to abide by th...
Everybody has a dream whether they are willing to admit it or not. Some have achieved their dreams, some are still working towards their dream while many have given up. When Hughes asked what happens to a dream deferred, he explored a human consciousness that forces people to abandon their dreams. It is a powerful question which commands a sense of silence after it. With each stanza he evokes powerful and negative images of abandoned dreams. The message is that abandoned dreams do not simply vanish because you are not chasing them. Instead, they go through an evolution which gets worse before exploding. Hughes became frustrated with the number of blacks in Harlem succumb to an oppressive environment. Before he became a renowned poet, novelist,
Japan is located in the continent of Asia. This country is made up of many islands. There are four major islands in Japan which are Honshu, Hokkaido, Shikoku, and Kyushu. However, Honshu is the largest and most popular as well as home to Tokyo, Kyoto, and other major cities. Japan is often called "The Land of The Rising Sun” because it is located in the Far East and most peoples know that sun rises in the east. The Japanese also refers to their country as "Nippon" or Nihon" which means "source of the sun". Tokyo is the capital of japan and it is one of the largest cities in the world and also modern, very busy as well as extremely crowded. Japan is a well-developed and modernized country. The population in japan is almost 127 million, which 99 of them are Japanese. There are two main religious in Japan which are Shintoism and Buddhism. In Japan all citizens have Freedom to choose and practice their own religious. The Japanese economy is one of the third largest in the world after USA and China. The main export of Japan are cars, electronic devices and computers wh...