日本研制成功一种利用超声波控制药物释放的新方法:他们把药物封入用高分子膜制成的小容器内,然后通过照射超声波来控制药物的释放。当照射超声波时,药物就放出;停止照射,释放也随之停止。如果把容器埋入体内,在需要时照射超声波,容器内的药物就会释放出来。 Japan developed a new method of using ultrasound to control drug release: they sealed the drug in a small container made of a polymer film and controlled the release of the drug by irradiating the ultrasound. When the ultrasound irradiation, the drug is released; stop irradiation, the release also will stop. If the container is embedded in the body and irradiated with ultrasound when needed, the contents of the container are released.