KR810000215B1 - Automatic syringe for longtime injection - Google Patents

Abstract

An automatic syringe comprises a reference injection volume control part(A), an increase control part(3) in injection quantity, switching devices and motors. The reference injection quantity control part(A) is composed of means for controlling injection speed comprising an oscillater, a timer, a digital comparator(3) and a sum-wheel switch and means for controlling the reference injection guantity. The injection volume control part(B) is composed of a counter, a digital comparater, a sum-wheel switch(18), a manual infuser, a flip-flop(19) and an AND gate(11).

Description

Auto dose control device for long time injection

The figure is explanatory drawing of the structural state of the apparatus of this invention.

The present invention relates to a novel injection amount automatic control device capable of allowing the injection time not only to take a long time when injected for the treatment of the human body, but also to allow the injection amount to be sustained or increased in time constantly as needed.

More specifically, the present invention is specifically developed to perform effective injection of insulin injections for diabetic patients. For example, diabetics have a higher amount of insulin required by the human body at meal time than usual. Since the method of injection of insulin until 2-3 times a day was only injected into the patient, this method is not only able to supply the insulin continuously to the human body, but also prevents the injection of insulin at the same time as before meals. Inconvenient, the desired effect was not achieved in the end.

However, in the present invention, for example, by injecting an injection device, a constant reference amount of injection solution is continuously injected in usual times, and thus a large amount can be injected before meals to solve the problems of the conventional insulin injection method. .

Of course, the present invention can be applied not only to insulin injection therapy for diabetes, but also generally when the injection amount needs to be adjusted automatically for a long time injection.

Recently, an automatic injection device is known as Japanese Patent Application Publication No. 52-3292, but this is a so-called analog type, and by adjusting the variable resistor manually, the injection amount is adjusted to the required amount at that time, thereby precisely and automatically adjusting the injection amount. In the present invention, the oscillator uses two oscillators to configure a timer device on one of them and a counter device on the other, which are intermittently or regularly needed by the timer device and counter device. In order to precisely and automatically adjust the injection amount by setting the injection amount to be set numerically in advance, it is possible to precisely and automatically adjust the so-called digital type.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

When divided into the configuration of the present invention, the reference injection amount control unit (A) and the weight injection control unit (B) and the opening and closing selection unit (C) which is the scanning speed control unit (a) and the standard injection amount injection control unit (b) And the motor unit (D).

(Codes a, b, c, and d are not shown in the drawings.)

The detailed description of each component is as follows.

A. Scanning speed control part (a):

In the oscillator 1, one pulse is given every certain time (e.g. every second). In the timmer 2, the pulse is calculated by the clockwise 60's. The injection wheel and the injection time are artificially scheduled in the switch (4), and the output of the scheduled thumb wheel switch (4) and the output of the timemer (2) are digital comparator (3). Only one pulse is output at the instant of matching at the same time, and the timer 2 is reset (R) to its original state, that is, zero. (However, the output display indicated by four lines in the drawing is just one example.)

N. Reference injection dose control part (b):

The oscillator 5 is almost the same as the oscillator 1, but it is preferable to use a somewhat faster than the oscillator (1). The counter 6 is configured to calculate the pulse of the oscillator 5 by the decimal system, and the thumb wheel switch 8 has an artificially predetermined reference injection amount. The output of the counter 6 and the thumb wheel Only when the output of the switch 8 coincides, one pulse is output and at the same time, the counter 6 is reset to zero again. (However, the output display indicated by the four arrows is merely an example.)

C. The pulses output from the digital comparator 3 are connected to the counter 6 and the flip flop 9 and to the and gate 10 between the oscillator 5 and the counter 6. The digital comparator 7 is also connected to the flip flop 9. The flip-flop 9 maintains a positive output when the set pressure is applied, and maintains a negative output when the reset input is received.

D. When the gate 10 receives a positive output from the flip flop 9, it receives an output from (5) and (6), and receives a negative output from the flip flop (9) between (5) and (6). It will close the output from.

M. The step motor driver 21 for starting the step motor 22, the step motor 22 being rotated at an angle of 18 degrees per one pulse of the oscillator 5, for example If necessary, select the standard product with the required rotation angle.

In the above, the scan rate control unit (a) and the reference injection amount injection control unit (b) are collectively represented by the reference numeral (A) in the drawing bar (A) corresponds to the reference injection amount control unit.

Iii. Weight injection control unit (B):

The counter 16, the digital comparator 17 and the thumb wheel switch 18 are the same as the counter 6, the digital comparator 7 or the thumb wheel switch 8, and are connected in the same manner. However, the thumb wheel switch 18 is preset with an injection amount that is increased from the reference injection amount set in the thumb wheel switch 8, and this increased amount is, for example, an insulin dose required by the human body at the time of meal in the case of insulin injection. In this case, when the switch button of the manual iufusion 12 is operated, the output sent from the end gate 11 of the increase-injection control unit B in the or gate 20 is applied. It accepts only the step motor 22 to operate and closes the output from the reference injection amount control unit A. However, this manual infusion zone 12 automatically returns to the OFF state when a predetermined time passes. At this time, the gate gate 20 receives only the output from the reference scan amount control unit A and receives a step motor ( 22) is activated.

G. The step motor 22 is used in connection with a long time automatic syringe as the inventors have applied for a separate patent, so that the long time automatic syringe can continuously supply a certain amount of injection liquid to the human body by the step motor 22. If it is configured, it can be portable to keep the syringe infused in the human body at all times. As described above, the present invention can supply the injection solution required by the human body for a long time continuously digitally, precisely and automatically based on the digital system for a long time, and thus, especially when used in insulin injection therapy for diabetes, Clinical trial results demonstrate that this may be demonstrated.

In the practice of the present invention, when an increase in scanning is not necessary, that is, when only a reference amount needs to be continuously scanned, the device portion composed of the increase scanning control unit (B) and the or gate (D) mande should also be regarded as one embodiment of the present invention. something to do. In addition, since the components (1) to (22) used in the present invention are all known and common, descriptions of detailed configurations, operations, and effects thereof will be omitted.

Claims (1)

An injection rate automatic control apparatus using a pulse motor and a pulse oscillator, comprising: an oscillator (1), a timer (2), a digital comparator (3), and a thumbwheel switch (4) for presetting scan time And a reference injection dose adjusting portion (A) consisting of a reference injection dose adjusting portion consisting of an oscillator (5), a counter (6), a digital comparator (7), and a thumb wheel switch (8) for a dose presetting, and a counter (16). , Digital comparator (17), thumb wheel switch (18) for augmentation scan presets, augmented scan control (B) and endgate (manual infusion zone (12), flip flop (19) and end gate (11)) 10) and the opening and closing selection unit to be the or gate 20, and the motor unit of the step motor driver 21 and the step motor 22, characterized in that the injection amount automatic adjustment device for scanning.

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