| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a medical solution pump and a medical solution administration device, the accuracy of medical solution delivery quantity of which can be improved.SOLUTION: A medical solution pump 5 includes: a medical solution inflow path 51 into which a medical solution flows; a medical solution delivery path 52 from which the medical solution is delivered; a connection path 53 connecting the medical solution inflow path 51 and the medical solution delivery path 52; a cylinder 54 provided halfway along the connection path 53, and communicating with the connection path 53; a piston 55 slidably provided inside the cylinder 54; a first check valve 56 provided between the medical solution inflow path 51 and the connection path 53, and preventing a backflow of the medical solution to the medical solution inflow path 51 from the connection path 53; and a second check valve 57 provided between the medical solution delivery path 52 and the connection path 53, and preventing a backflow of the medical solution to the connection path 53 from the medical solution delivery path 52. At least one of each of the check valves 56, 57 is an umbrella-shaped valve having an umbrella part, and projecting parts facing the lower faces of the umbrella parts are formed in the valve seats 711, 731 of the umbrella-shaped valve, respectively.</p> |
