| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a medical appliance having a check valve temporarily permitting a backward flow built therein, or an animal treatment appliance. <P>SOLUTION: The check valve is provided in a frame part having a flexible part. When the flexible part is pressed with a finger, the check valve is also pressed to bring the check valve to an open state. <P>COPYRIGHT: (C)2004,JPO |
