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At ordinary times, eustachian tube by extrusion and surrounding tissue in the export of nose pharynx ministry in closed state, but when the baby swallowing, chewing, sneezing, or crying, in order to maintain the balance of inside and outside the middle ear pressure, open eustachian tube is a moment. Because the baby's ear has not yet developed, eustachian tube is relatively short, low and flat, and position if you cross holding the baby, let him lie on your back with milk, milk bottle mouth open too large, bottles, vertical too straight, etc., are likely to cause the baby choking milk, and make the milk along the eustachian tube into the middle ear, induce otitis media.
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When used in business practices, technology can ensure the competitiveness of companies and other companies. But the cost of achieving, inventing or using technology, called intellectual property, is very high. Therefore, many societies, such as the United States, Europe, and Taiwan, would give the government protection from this investment, through the granting of patent, exclusive rights. This protection enables companies to invest in technical costs that can be recycled, thus encouraging innovation. But there is another point, too, that patent overprotection can hamper innovation.
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