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    • 3. 发明授权
    • Intravenous drip rate control device
    • 静脉滴注控制装置
    • US4493710A
    • 1985-01-15
    • US550803
    • 1983-11-14
    • Roger A. KingJohn E. Arnold, Jr.
    • Roger A. KingJohn E. Arnold, Jr.
    • A61M5/168A61M5/00
    • A61M5/1689Y10S128/13
    • An intravenous drip rate control device includes a control valve having horizontally oriented valve members each provided with valve elements arranged in interdigitating relation with respect to each other. A drip rate sensor senses each intravenous drip and produces an electrical signal in response to each drip. A microprocessor unit compares the sensed drip rate to a preset drip rate and controls operation of an actuating unit which causes one of the valve members to shift toward and away from the other valve member. When one of the valve members is shifted toward the other valve member, a horizontal portion of the drip tube is progressively stretched to narrow the opening through the stretched portion of the tube and thereby reduce the drip rate. When the valve member is shifted away from the other valve member, the tension on the stretched portion of the tube will be progressively released, thereby increasing the opening in the tube and increasing the drip rate.
    • 静脉滴注控制装置包括具有水平定向阀构件的控制阀,每个阀构件设置有彼此相互交错关系布置的阀元件。 滴液传感器感测每次静脉滴注并响应于每个滴液产生电信号。 微处理器单元将检测到的滴水速率与预设的滴液速率进行比较,并且控制致动单元的操作,该致动单元使一个阀构件朝向和远离另一个阀构件移动。 当其中一个阀构件朝向另一个阀构件移动时,滴管的水平部分被逐渐拉伸以通过管的拉伸部分使开口变窄,从而降低滴落速率。 当阀构件离开另一个阀构件时,管的拉伸部分上的张力将逐渐释放,从而增加管中的开口并提高滴液速率。