Release date: 2015-10-21
In the United States, more than 122,000 people are waiting for an organ transplant, and 18 of these people die every day. However, there is a new medical technology that can increase the survival rate of transplanted organs by injecting oxygen and nutrients into the transplanted organs, and also prolong the survival time of the transplanted organs, which means that the transplanted organs can be derived from a group of New donors. There are two causes of death in organ transplant patients: one is brain death and the other is cardiac arrest. These two differences are important because the transplanted organ can only come from patients with brain death. When the heartbeat stops, it has run out of oxygen, and the muscle cells of the body will die (as will other organs). In patients with brain death, their faculties are frozen before they hang, greatly reducing cell death before being transplanted into a patient in need.
However, Transmedics of Massachusetts has developed a technology called an organ protection system. This technology not only prolongs the preservation of the heart, lungs, kidneys, and liver, but also revives the heart. So far, the technology has had at least 15 success stories in the UK and Australia, and clinical trials are still in progress in the United States.
How does this technology work? First, the heart (or other organs) is placed in a sterile environment where temperature and humidity are strictly controlled, and then the blood of the organ donor is injected into the organ and oxygen and nutrients are injected through a specific machine. Keep the organs alive and beating until they are implanted in a patient in need.
According to the Massachusetts Institute of Technology, the Papworth Hospital in the UK, which used the technology eight times, tried to find a slightly different application of the technology. In the seven cases they conducted, the patients' brains were severely damaged and needed to be sustained by medical equipment. After the team members removed the equipment, the circulatory system in the patient's body naturally stopped and then gradually died. Five minutes later, they controlled the device and allowed the blood to flow back through the patient's brain, causing the patient's heart to re-bounce. In the process, the heart was always in the donor's body.
Love "heart" transmission, big love sharing <br> With this method, you can monitor and control the condition of the heart at any time, and other organs in the body can also survive. The heart can then be removed from the body and stored in a special device, waiting to be transferred to a patient in need. The results of these experiments have not yet been published.
However, this technology can now also be used on non-brain-dead patients, as well as keeping their organs alive for longer, and the number of supplies available can increase by 15% to 30% for the heart alone. The development of this technology is very important, especially for the UK, because according to Stephen Large of Papworth Hospital at Papworth Hospital, they have only 180 hearts per year. Because of the ban on guns in the UK, there are very few people who die from brain deaths compared to heart deaths (the number of heart donations is one-half of the US).
Of course, this technology can also raise moral issues. For example, when does the patient actually count as a death and how long it takes to remove the organ. However, Harvard medical ethicist Robert Truog said: "The patients are dying, so using their organs is understandable. The question is whether these patients will be hurt in the process. My answer is, no. ."
Source: èŒèšª five-line spectrum
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