Release date: 2008-11-11
French researchers have developed a new type of artificial heart that has been tested in animals and is about to enter clinical trials.
The new artificial heart was developed by a research team led by cardiovascular specialist Alan Carpenter of the Georges Pompidou Hospital in France. The Figaro newspaper quoted Karl Ponte as saying that this is not the world's first artificial heart, but its advanced point is its similarity with the common heart. In addition, it also solved the previous artificial heart in the row. Problems encountered in heterogeneous reactions and clot condensation.
According to reports, the artificial heart weighs about 900 grams. Like the normal heart, it has two ventricles and a heart pump and a valve. The blood circulation is similar to that of a normal heart. An electronic sensor is placed in the heart to adjust blood pressure and heart rate depending on the situation. At the same time, it is equipped with a battery on the outside to ensure the energy required for its operation. In addition, the materials used by the researchers are extracted from the tissues of the animals and then chemically treated. This avoids the rejection of the human immune system by artificial heart materials, and the use of new materials can also avoid artificial heart. Blood clots condense.
When the heart of the human body is damaged and cannot be recovered, the best way is to use an artificial heart. The first generation was the jarik7 artificial heart, which was connected to a part of the body through two 2-meter-long hoses, and the compressed air maintained the beating of the artificial heart. The first case of transplantation with the first generation of plastic artificial heart was performed on December 2, 1982. The postoperative survival was 112 days, and the longest survival of the plastic heart was 620 days. At present, the artificial heart has been applied in the second generation. In early 1993, the second-generation artificial heart was used to perform surgery on the patient. The artificial heart was made of metal material, plastic synthetic material and bovine pericardium tissue. Because the artificial heart could not be installed on the chest, the heart was placed in the abdominal muscle. Inside, its main components are an air pump and a drive unit. The power supply and operating system are housed in an outer bag and connected to the abdomen by a wire. ——Shanghai Medical Device Industry Association website
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