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Apparatus for the parenteral fluid administration to a patient including a pressure applying piston to apply pressure to a flexible bag containing the parenteral fluid. The piston has an indicator to indicate its movement and stop devices are provided which can be adjustably positioned to give the p

Apparatus for the parenteral fluid administration to a patient including a pressure applying piston to apply pressure to a flexible bag containing the parenteral fluid. The piston has an indicator to indicate its movement and stop devices are provided which can be adjustably positioned to give the piston a predetermined movement to dispense a predetermined quantity of fluid.

대표청구항 ▼

Apparatus for the administration of parenteral fluids, said apparatus comprising a container adapted to support a pliant bag containing a liquid to be administered, pressure applying means to apply a said bag including an outlet means, pressure to said bag to force the liquid therefrom, said pressur

Apparatus for the administration of parenteral fluids, said apparatus comprising a container adapted to support a pliant bag containing a liquid to be administered, pressure applying means to apply a said bag including an outlet means, pressure to said bag to force the liquid therefrom, said pressure applying means being a rigid piston having a head and elongate body portion of lesser diameter than said head, a flexible diaphragm connected to said container to form an enclosed pressure area on one side of said piston to roll on said elongate body portion of said piston, with said pliant bag situated on the other side of said piston, and adjustable pressure regulating means to admit fluid pressure to said enclosed pressure area.