| 摘要 |
PROBLEM TO BE SOLVED: To provide a medical pumping apparatus which is usable in a home with high safety, easily increased in chamber capacity, reduced in noise due to open/closed valves and low in cost and superior in flow accuracy. SOLUTION: A medical pumping apparatus includes a base member 1 provided with chambers 7a and 7b and medicine passages 8a and 8b and medicinal solution sacks 9a and 9b, in which expansive or flexible liquid bags with the bases mounted in liquid tight relation is inserted into the opening ends of the chambers 7a and 7b, the medicinal solution sacks 9a and 9b being put into cyclinders 3a and 3b of cylinder units 2a and 2b. When pistons in the cylinders 3a and 3b are reciprocally moved, medicines are absorbed or discharged in/from the medicinal solution sacks 9a and 9b. The flow direction of the medicinal solution is controlled by opening/closing valves V11 and V12 mounted in the medicinal solution passages. |
