초록 ▼

An insert head (102) is tightly inserted in the rearward end of a commercially available ampoule (101) equipped with a plunger (100). A galvanic, gas-generating cell is arranged in the insert head (102). The plunger (100) is driven forward by the gas generated by this cell. A throttle device (103) c

An insert head (102) is tightly inserted in the rearward end of a commercially available ampoule (101) equipped with a plunger (100). A galvanic, gas-generating cell is arranged in the insert head (102). The plunger (100) is driven forward by the gas generated by this cell. A throttle device (103) constituted by a capillary tube is connected to the Luer\s syringe (109) of the ampoule (101), the infusion fluid driven out by the plunger (100) flowing through this throttle means into a catheter (104).

대표청구항 ▼

A medical infusion device, comprising a chamber for accommodation of an infusion liquid, said chamber having an outlet for the liquid at one end thereof and a movable wall at the opposite end for varying the size of said chamber and adapted to discharge liquid from said chamber through said outlet,

A medical infusion device, comprising a chamber for accommodation of an infusion liquid, said chamber having an outlet for the liquid at one end thereof and a movable wall at the opposite end for varying the size of said chamber and adapted to discharge liquid from said chamber through said outlet, means connected to seal the opposite end of said chamber outwardly of said moveable wall, a gas generating galvanic cell connected between said moveable wall and said means sealing the opposite end of said chamber, and a load resistor connected across said cell, whereby said cell delivers a constant quantity of gas pressure per unit of time determined by said load resistor to advance said moveable wall and discharge liquid through said outlet.