Abstract: The present invention relates to an apparatus and a system for controlling an amount of medicine or fluid injection through falling due to potential energy of the fluid. For example, the present invention can automatically adjust an injection rate of a medicine injected into a patient by controlling an opening/closing degree of a medicine hose by using a driving element driven by electric power according to a comparison of the number of drops with a predetermined value. An apparatus for realizing the method includes an accommodating case for accommodating a connecting portion for connecting a fluid, a detection unit for detecting the number of drops, a control unit for comparing the information detected by the detection unit, and a driving element for opening and closing a passage of the medicine hose based on the contents analyzed by a control unit.

Abstract: A liquid injector that additionally supplies charged liquid to a patient is provided. The liquid injector continuously supplies a fixed quantity of liquid to a patient only when the fixed quantity of liquid has been charged.

Abstract: A medicinal fluid injector having branch lines to inject a ringer solution together with a treatment solution is provided. If the vein of the patient is clogged, the treatment solution is not injected into the patient, but flows back into the ringer solution, which is injected into the patient through a free fall scheme. If the vein is open, the medicinal fluid is excessively injected at a time, causing fatal accident to the patient. To solve this problem, a check valve is installed in an injection tube to prevent the medicinal fluid or the blood from flowing back into the ringer solution even if pressure difference occurs in the medicinal fluid injector. If the medicinal fluid stagnates, an alarm is generated to notify medical staffs of the emergency, so that medicinal fluid injector is safely used.

Abstract: Disclosed therein is a medicinal liquid supply apparatus, which includes a fixed-type medicinal liquid supply volume controller adapted to supply medicinal liquid only as much as a paramedic sets and fixes and an arbitrary medicinal liquid supply volume controller adapted to allow a patient or the third party to arbitrarily supply the medicinal liquid as occasion demands during the paramedic's absence, thereby effectively supplying the medicinal liquid according to the patient's disease and pain conditions.

Abstract: Disclosed therein is a medicinal liquid supply apparatus, which includes a fixed-type medicinal liquid supply volume controller adapted to supply medicinal liquid only as much as a paramedic sets and fixes and an arbitrary medicinal liquid supply volume controller adapted to allow a patient or the third party to arbitrarily supply the medicinal liquid as occasion demands during the paramedic's absence, thereby effectively supplying the medicinal liquid according to the patient's disease and pain conditions.

Abstract: A liquid medicine-prescribing apparatus for a blood vessel injection comprising a lowercase 10 which is combined with two lateral faces 10a, 10b, a running part 60 which has the feed means of liquid medicine and which is inserted into a reception space 24 formed by a cover plate 20 which is open and shut by a hinge 300 of lowercase 10 so that mounting and separation may be done, and an uppercase 30 which is open and shut by a hinge 21 of a cover plate 20, and on which the lowercase 10 is combined to be open and shut by forming the reception space 33 which receives liquid medicine pack.