JPH08112347A - Instillation speed indicator for infusion set - Google Patents

Abstract

PURPOSE: To indicate the instillation speed of the infusion set by periodically blinking an LED according to an infusion amount per specified unit time. CONSTITUTION: When the number of drops per unit amount of the infusion set and an infusion amount per unit time are inputted with a ten-key, etc., an arithmetic means 48 computes the number of drops per unit time. A drip signal generating means 54 outputs a drip signal in cycles of dripping of infusion according to the computed value and a time signal from a timer means 56. The LED blinks according to the drip signal. According to the blinking of the LED, the dripping of the infusion set is only adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an infusion set instructing a drip speed of an infusion set by designating a drip speed of the infusion set in accordance with a designated infusion amount per unit time. It is about a vessel.

[0002]

2. Description of the Related Art A typical infusion set used for infusion is shown in FIG. 3, in which an infusion needle 12 is inserted into an infusion bag 10 and an infusion that has passed through the infusion needle 12 forms a filtration network 16 in an infusion tube 14. It is dripped through. The infusion collected at the bottom of the drip tube 14 is connected to the connecting pipe 18, the flow controller 20 and the octopus pipe 22.
Then, it is infused into the body of a patient or the like through the infusion needle 24. The infusion amount of the infusion to the patient or the like is determined by the drip speed of the infusion set and the number of drops per unit amount (in other words, the amount of one drop). Some commercially available infusion sets include 60 drops of 1 ml, 20 drops of 1 ml, and 15 drops of 1 ml.

Then, the dropping speed of the infusion set is adjusted and managed by a nurse or the like based on an instruction from a doctor or the like. The adjusting method is as follows. First, the infusion amount per unit time instructed by a doctor, for example, 60 hours per hour.
Based on the infusion of ml, the nurse or the like calculates an appropriate instillation rate from the number of infusions which is a unit amount of the infusion set used for the patient, for example, 60 ml and 1 ml. In the above example, one drop per second is the proper speed. Therefore, the nurse or the like adjusts the flow rate regulator 20 while watching the movement of the second hand of the watch, and
It is set to drop one drop per second.

[0004]

In the above-described adjustment and control of the dropping speed of the infusion set, the following problems are recognized. First, when an appropriate drip rate is calculated from an infusion amount per unit time instructed by a doctor or the like, if an error occurs in the calculated value due to a mistake or the like, a serious medical error may occur. Further, in order to adjust the infusion set to an appropriate dropping speed, adjustment of the flow rate controller 20 and observation of the dropping speed for a while after that must be repeated several times, and the operation is extremely complicated. Particularly, in emergency medical practice, it is extremely difficult to properly adjust and manage the dropping speed due to extreme shortage of labor and the like.

[0005] The present invention has been made in view of the above circumstances, and by setting the number of drops per unit amount of an infusion set and the specified infusion amount per unit time, an appropriate dropping rate can be easily obtained. It is an object of the present invention to provide a drip rate indicator for an infusion set which is instructed.

[0006]

In order to achieve the above object, an infusion set infusion set indicator of the present invention sets the number of drops per unit volume of the infusion set and the amount of infusion per unit time to be infused. Or input means for selection, arithmetic means for calculating the number of drops per unit time from the number of drops and the amount of infusion, clock means, and dropping from the time signal from the clock means and the number of drops per unit time. The apparatus is provided with: a dripping signal generating unit that outputs a dripping signal periodically; and a display unit that periodically and visually or audibly displays the dripping signal in accordance with the dripping signal.

The input means may be configured to set the number of drops per unit amount and the infusion amount per unit time using a numeric keypad.

The input means may be configured to set the amount of infusion per unit time using a numeric keypad and select the number of drops per unit amount using a selection key.

Further, it is possible that the display means is configured to periodically blink the light emitting element in response to the drop signal.

Further, a start switch may be provided, and the periodic display by the display means may be configured such that the start point of the cycle is started at the time of operating the start switch.

[0011]

[Operation] In the infusion set infusion set indicator according to the first aspect, it is only necessary to set the infusion volume per unit time specified by a doctor or the like and the number of drops of the unit volume of the infusion set to be used. The appropriate number of drops per unit time is calculated, and the cycle to be dropped is displayed visually or audibly. Therefore, the flow rate controller of the infusion set may be adjusted so that the infusion may drip in the displayed cycle.

Further, in the drip rate indicator of the infusion set according to the second aspect, since the infusion amount per unit time and the number of drops per unit amount of the infusion set are set by the ten-key pad, these The number can be set accurately. In addition, the dropping speed can be correctly indicated regardless of the number of drops per unit amount of the infusion set.

In the infusion set indicator according to the third aspect of the present invention, the number of drops per unit amount of the infusion set can be more easily operated by operating a selection key according to the type of the infusion set. Can be set.

Further, in the drip rate indicator of the infusion set according to the fourth aspect, the flow rate controller may be adjusted so that the infusion set drips in accordance with the periodic blinking of the light emitting element. Easy to operate.

Further, in the infusion rate indicator of the infusion set according to the fifth aspect, the operation of the start switch is performed at the time of dropping, so that the dropping cycle and the display cycle can be easily and reliably compared. obtain.

[0016]

1 and 2 show an embodiment of the present invention.
Will be described with reference to. FIG. 1 (a) is a block diagram showing the structure of an embodiment of the drip rate indicator of the infusion set of the present invention, and FIG. 1 (b) is a flow chart showing its operation. FIG. 2 is an external perspective view of an example of an infusion speed indicator of the infusion set according to the present invention.

As shown in FIG. 2, the infusion rate indicator of the infusion set according to the present invention is incorporated in a small housing 30 that can be inserted into the palm. The ten keys 32, function keys 34, and liquid crystal segments are provided on the surface of the housing 30. A display 36, an LED 38 as a light emitting element, and a speaker 38 are provided, and a start switch 42 is provided on one side surface. The ten-key pad 32 includes numeric keys and a return key, and the function key 34 includes four keys for selecting the dropping speed instruction function, the clock function, the timer function, and the stopwatch function, respectively.

A block circuit as shown in FIG. 1A is housed in the housing 30. First, numeric keypad 3
2 and the function key 34 form an input means 44. The function key 34 is for switching the apparatus to a dropping speed instruction function, a clock function, a timer function, and a stopwatch function.
If the output is provided via the control unit, the output is given to the calculating means 48 if the function is a dropping speed instruction function, and if the output is a timer function, the timer circuit 5
0, and to the stopwatch circuit 52 if the function is a stopwatch function. In addition, in the state of the dropping speed instruction function, the infusion amount S (ml / H) per unit time set by the numeric keypad 32 and the number of drops D (drop / ml) per unit amount of the infusion set are input. It is provided to the calculating means 48 via the control means 46. Further, in the state of the timer function, a predetermined time set by the ten keys 32 is given to the timer circuit 50 via the input control means 46. The operation signal of the start switch 42 is supplied to the drip signal generating means 54, the timer circuit 50, and the stopwatch circuit 5.
2 respectively. Further, the arithmetic output of the arithmetic means 48 and the time signal of the clock means 56 are added to the drop signal generating means 54.
The drop signal is supplied from the drop signal generating means 54 to the display control means 58. The display control means 58 is also supplied with signals from the arithmetic means 48, the clock means 56, the timer circuit 50 and the stopwatch circuit 52. Then, the display control means 58 gives a signal to the display means 60. Here, the display means 60 is set by the LED 38 which blinks based on the drop signal, a voice generating circuit (not shown) for generating a voice based on the drop signal, the speaker 40 which loudspeaks the voice, and the numeric keypad 32. Value and time display from clock means 56 and timer circuit 5
Liquid crystal segment display 3 displaying remaining time display by 0 and time measurement display by stopwatch circuit 52
6 is included.

The operation of the infusion set indicator of the infusion set of the present invention having the above configuration will be described below. In a normal state where the function key 34 is not operated, the time is appropriately displayed by the liquid crystal segment display 36 in accordance with the time signal output from the clock means 56.

In a state where the dropping speed instruction function is set by operating the function key 34, a unit time (one hour) specified by a doctor or the like using the numeric keypad 32 is used.
The injecting amount S (ml / H) per unit and the number of drops D (droplet / ml) per unit amount (1 ml) of the infusion set used are the calculating means 48.
(Steps in FIG. 1B), and at the same time, these values are displayed on the liquid crystal segment display 36, and the operator confirms whether or not the set values are correct. The instruction to the main unit that the set value is correct may be made by an appropriate operation such as a return key on the ten keys 32. And
If the set value is correct, the calculation means 48 calculates the calculation formula Dm = D
・ From S / 60, the number of drops Dm per unit time (1 minute)
(The number of drops per minute) is calculated (step in FIG. 1B). The number of drops is the liquid crystal segment display 36
Is displayed in. Further, the result of this calculation is given to the drop signal generating means 54, and a drop signal having a cycle obtained by dividing the unit time by the number of drops is generated by the time signal from the clock means 56. When the start switch 42 is operated, it is controlled so as to be the start time of the cycle, and the dripping signal is displayed on the display control means 5.
8 (step in FIG. 1B), and the LED 38
Is displayed in blinking on the periodic drops according to the drop signal (Fig. 1 (b)).
Step), and the sound generation circuit periodically generates a sound.

When the timer function is set by operating the function key 34, the timer circuit 5
In the case of 0, a time signal is fetched from the clock means 56, and a desired time is set by the ten keys 32. Then, when the desired time is reached, the timer circuit 50 gives a signal to the display control means 58 and the liquid crystal segment display 36 appropriately displays the signal. In addition, when displaying as a timer function after a desired time set from the current time, the desired time is set by the ten keys 32 and the start switch 42 is operated to start the timekeeping operation.

The setting of the infusion amount per unit time and the number of drops per unit amount of the infusion set by the numeric keypad 32 is performed by alternately operating the numeric key of the numeric keypad 32 and the return key. You can enter it. Alternatively, the number of digits of the infusion amount and the number of drops may be set in advance, and the number of the infusion and the number of drops may be input by operating the numeric keys of the numeric keypad 32 by the corresponding number of digits.
Further, the number of drops of several types of infusion sets which are commercially available is stored in advance in the calculating means 48 so that a different number of drops can be sequentially selected each time the function key 34 for selecting the drop speed instruction function is operated. That is, the number of drops per unit amount of the infusion set may be selected by the function key 34, and only the infusion amount may be set by the numeric keypad 32. Here, the function key 34 for selecting the dropping speed instruction function is used as a selection key for selecting the type of the infusion set. Further, in addition to the function key 34, a selection key (not shown) for selecting any one of a plurality of preset numbers of drops per unit amount of the infusion set may be provided. By properly displaying the selected number of drops on the liquid crystal segment display 36, selection error does not occur. Further, in order to make the periodic blinking of the LED 38 become the starting point of the first cycle when the start switch 42 is operated, for example, a presettable ring counter is included in the drip signal generating means 54. The table and ring counter is appropriately preset according to the calculation result of the calculating means 48, the clock from the clock means 56 is counted, and the count value of the presettable ring counter is cleared by operating the start switch 42. Just do it.

Further, when the stopwatch function is set by operating the function key 34, the stopwatch circuit 52 captures a time signal, starts the timekeeping operation by operating the start switch 42, and displays the elapsed time by the display control means 58. Liquid crystal segment display 3 via
6 and the timing operation is terminated by operating the start switch 42 again, and the elapsed time at that time is displayed on the liquid crystal segment display 36.

For the clock function, the timer function and the stopwatch function, the well-known techniques in the related art may be appropriately used, and the detailed description of the operation will be omitted.

The method for adjusting the infusion rate of the infusion set using the infusion set infusion set indicator of the present invention will be described below. First, the drip speed instruction function is selected with the function key 34, and the infusion amount per unit time and the number of drops per unit amount of the infusion set, which are instructed by a doctor or the like, are input, and the infusion set is appropriately set. The start switch 42 is operated at the same time when the liquid is dropped in the drip tube 14. Then, periodic blinking by the LED 38 is started simultaneously with the dropping. Therefore, if the dropping period is faster than the blinking of the LED 38, the flow rate controller 20 is adjusted in a direction to squeeze to slow the dropping speed, and if the dropping period is slower than the blinking of the LED 38, the flow rate controller 20 is adjusted to open. Speed up. After such adjustment, the start switch 42 is again operated at the same time as the dropping, and the dropping rate of the infusion is adjusted to an appropriate dropping speed while comparing the period of blinking of the LED 38.

As described above, since the dropping speed is adjusted while simultaneously watching the dropping of the infusion solution and the blinking of the LED 38, the adjusting operation is much easier than in the past.

In the drip speed indicator of the infusion set described in the above embodiment, in addition to the drip speed indicating function,
It has a clock function, a timer function, and a stopwatch function, but these functions are not indispensable, and another calculation function or the like may be added. The display means 60 is provided with the liquid crystal segment display 36 and the LE.
The visual display is not limited to the one including the D38 and the sound generation circuit and the speaker 40, but may be all on a single liquid crystal panel. For the auditory display, an earphone or the like is used instead of the speaker 40. May be. In the above embodiment, the unit time and the unit amount are 1 hour or 1 ml.
It is needless to say that the number of drops calculated by the calculating means 48 is not limited to one per minute.

[0028]

As apparent from the above description, the infusion rate indicator of the infusion set of the present invention has the following special effects.

In the infusion set indicator according to the first aspect of the present invention, the drip rate of the infusion set to be adjusted can be adjusted by inputting the infusion amount per unit time and the number of drops in the unit amount of the infusion set. Since the instruction is periodically given by light or sound, the infusion set may be adjusted based on these instructions. Therefore, as in the related art, the erroneous calculation and the complexity of adjusting the infusion set that occur when calculating an appropriate dropping speed are greatly reduced. Therefore, it is possible to reduce the burden on a nurse or the like who adjusts the infusion set and prevent serious medical errors.

In the infusion rate indicator of the infusion set according to the second aspect, the infusion amount per unit time and the number of drops per unit amount of the infusion set are entered by the ten keys, and these numerical values are input. It can be set accurately and can accommodate any type of infusion set.

In the infusion rate indicator for an infusion set according to the third aspect, the number of drops per unit amount of the infusion set is selected from one set in advance by a selection key. The number of drops can be easily set from the set model, etc., and the operation is simple.

Further, in the infusion rate indicator for an infusion set according to claim 4, the infusion set is adjusted so that the period of the infusion of the infusion set coincides with the periodic blinking of the light emitting element. Good adjustment operation is easy.

Further, in the infusion set indicator of the infusion set according to the fifth aspect, the operation of the start switch causes the light-emitting element to periodically blink and the start point of the cycle when the infusion of the infusion set drops. Is started, so adjust the infusion set so that dripping and blinking are performed simultaneously,
The adjustment operation is even easier.

[Brief description of drawings]

FIG. 1 (a) is a block diagram showing a structure of an embodiment of an infusion rate indicator of an infusion set of the present invention, and FIG.
Is a flowchart showing the operation.

FIG. 2 is an external perspective view of an example of an infusion speed indicator of the infusion set according to the present invention.

FIG. 3 is a configuration diagram of a general infusion set used for infusion.

[Explanation of symbols]

 32 Numeric Keypad 34 Function Key 36 Liquid Crystal Segment Display 38 LED 40 Speaker 42 Start Switch 44 Input Means 48 Calculation Means 54 Drop Signal Generating Means 56 Clock Means 58 Display Control Means 60 Display Means

Claims (5)

[Claims] 1. An input means for setting or selecting the number of drops per unit amount of an infusion set and the amount of infusion to be infused per unit time, and an operation for calculating the number of drops per unit time from the number of drops and the amount of infusion. Means, clock means, drop signal generating means for outputting a drop signal at a period to be dropped from the time signal from the clock means and the number of drops per unit time, and visual or audible according to the drop signal. And a display means for periodically displaying at least one of the following: a drip rate indicator for an infusion set. 2. An infusion rate indicator for an infusion set according to claim 1, wherein said input means is configured to set the number of drops per unit amount and the amount of infusion per unit time by a numeric keypad. Infusion set drip speed indicator. 3. An infusion rate indicator for an infusion set according to claim 1, wherein said input means sets the amount of infusion per unit time by a numeric keypad and selects the number of drops per unit amount by a selection key. A drip speed indicator for an infusion set, characterized in that it is configured as described above. 4. The infusion rate indicator of the infusion set according to any one of claims 1 to 3, wherein the display means is configured to periodically blink a light emitting element in response to the dropping signal. Infusion rate indicator for infusion set. 5. The infusion rate indicator of an infusion set according to claim 1, further comprising a start switch, wherein a periodic display by said display means is started at a point of time when said start switch is operated. An infusion set indicator for an infusion set, comprising: