| 摘要 |
PURPOSE: A single-use drug solution injector using a hollow yarn membrane as a flow amount controller to integrate a flow amount control and filter function is provided. Whereby, the injector drastically reduces the cost of production and increases the safety and comfort of a patient. CONSTITUTION: The drug solution injector which may be used for delivering a pharmaceutical agent such as anesthetic and analgesic agent to a patient at a substantially constant flow rate uses a hollow yarn membrane having a pore size of 0.0005 to 1 micrometer. The injector uses the hollow yarn membrane as a flow amount controller, thereby eliminating fine bubbles and water insoluble materials from a drug solution and preventing a pyrogen generated after sterilization of the injector from inducing into a human body.
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