Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2000-01-28
2001-02-27
Lefkowitz, Edward (Department: 2736)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S551000, C340S623000, C340S624000, C200S08400B, C604S065000, C604S247000, C604S254000, C604S255000
Reexamination Certificate
active
06195012
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an drip annunciator, and especially to a annunciator installed between a drip bottle and a liquid transferring tube, the flow can be adjusted, as the nutrient solution in the drip bottle will be used up, it can be detected so as to emit an alarm or a light to inform the medical members to update the liquid therewithin. Thus, the drip bottle can be used with a higher safety.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a use of conventional drip bottle
10
is illustrated. The needle
12
for inserting into a bottle is inserted into the soft plug in a drip bottle
10
for transferring the nutrient solution in the bottle. A regulator
13
for controlling the output flow of the nutrient solution is installed at a proper place on the liquid transferring tube
11
so as to supplement the required nutrient to a patient with a proper amount. However, in the simple structure, once the nutrient solution in the drip bottle
10
is exhausted without being supplemented in time. Then, it is possible that the patient will be hurt. Moreover, once air is possible flow into the blood vessel, the life of the patient will be threatened.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the present invention is to provide a drip annunciator, as the level of the liquid in the drip bottle is too low, an alarm is emitted to inform the guarding people and seal the opening the liquid. In the present invention, the buoyancy principle and magnetic attraction principle are used. A buoyancy body is received in the needle bottle in the needle bottle, and a magnet is installed at the bottom of the buoyancy body. Meanwhile, a magnetic sensor is installed at a proper place thereunder, which serves to be electrically connected to a buzzer, an alarming light or other annunciator so that as the liquid level in the drip bottle descends to a preset level, due to magnetic attraction, the magnetic sensor will actuate to be electrically conductive so that the buzzer emits an alarm voice or the alarming light will light up to inform other medical member or other people to update or supplement new liquid.
Another object of the present invention is to provide a drip annunciator. In the main body of the present invention, the drip annunciator of the present invention can be sealed in force. In the present invention, another movable control rod for bearing a magnetic sensor is installed at the main body so that by controlling the control rod, the magnetic sensor can separate from the magnet at a proper time.
A further object of the present invention is to provide a drip annunciator. As the liquid level is too low, not only an alarm is emitted, but also pipe line is sealed at the same time to prevent air to be input. In the present invention, a buoyancy body is received in the needle bottle and capable of moving with the liquid level, a rolling ball is disposed at one side of the buoyancy body so that as the liquid level descends to a preset level to actuate a buzzer to emit an alarm voice, the rolling ball will seal the liquid outlet to interrupt the supplement of nutrient solution in order to avoid that as nutrient solution exhausts, air will flow into the drip bottle. Therefore, by the present invention, the life and safety of the patient is retained.
An yet object of the present invention is to provides a drip annunciator, wherein a soft tube is further installed between the needle bottle and the liquid transferring tube, and an rotatable adjusting wheel is further installed aside. An screw rod with a tightening block is arranged at the central screw hole of the adjusting wheel. By rotating the adjusting wheel, the tightening block will press the soft tube with different levels so as to control the output of the liquid conveniently.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
REFERENCES:
patent: 4378014 (1983-03-01), Elkow
patent: 4507112 (1985-03-01), Hillel et al.
patent: 4926015 (1990-05-01), Takahashi et al.
patent: 4970498 (1990-11-01), Hwang
patent: 5527295 (1996-06-01), Wing
Goins Davetta W.
Lefkowitz Edward
Rosenberg , Klein & Lee
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