CN109966586A - An infrared static drip meter - Google Patents

Abstract

The invention discloses an infrared static drip meter, which relates to medical equipment, comprising: a hanging rod, a first hook is on the top of the hanging rod, and a second is hooked on the top side of the hanging rod. The dropper holder is connected to the hanging rod through a detachable structure, which is a top open and hollow tubular structure for the dropper of the infusion tube to be placed; a through hole is correspondingly arranged on both sides of the dropper holder, and the through hole is located in the dropper. Above the liquid level of the medium drop; open a small hole at the bottom of the dropper holder, the diameter of the small hole is larger than the diameter of the infusion tube hose and smaller than the diameter of the infusion tube dropper; the sensing device is located on both sides of the dropper holder. on the through hole; the signal processing device is on the dropper holder and is electrically connected with the sensing device; the display device is on the dropper holder and is electrically connected with the signal processing device. The tedious labor of medical staff is reduced, the reliability of infusion dosage is increased, and the infusion process is recorded and documented in real time.

Description

An infrared static drip meter

technical field

The invention relates to a medical device, in particular to an infrared intravenous drip meter.

Background technique

Intravenous infusion is a method of infusing a large amount of sterile liquid, electrolytes and drugs into the body by using the principles of atmospheric pressure and hydrostatic pressure. The loss of fluids or electrolytes by the body. However, there are often problems in actual operation: medical personnel are under the tedious and high-pressure labor intensity, which increases the unreliability of the infusion dosage, and the infusion process cannot be recorded in real time and cannot be checked. An instrument that can intuitively and accurately monitor the infusion measurement in real time has become particularly important to assist medical staff.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides an infrared static drip meter, comprising:

A hanging rod, the hanging rod is provided with:

a first hook, the first hook is arranged on the top of the hanging rod,

At least one second hook is arranged on the top side of the hanging rod.

The dropper holder is connected to the hanging rod through a detachable structure, and the dropper holder is a tubular structure with an open top and a hollow for placing the dropper of the infusion tube;

A through hole is correspondingly arranged on both sides of the dropper holder; the through hole is located above the liquid level of the droplet in the dropper;

A small hole is opened at the bottom of the dropper holder, the diameter of the small hole is larger than the diameter of the hose of the infusion tube, and the diameter of the small hole is smaller than the diameter of the dropper of the infusion tube ;

a sensing device, which is arranged on the through holes on both sides of the dropper holder;

a signal processing device, which is arranged on the dropper holder and is electrically connected to the sensing device;

A display device is provided on the dropper holder and is electrically connected to the signal processing device.

Preferably, the sensing device is an infrared photoelectric sensor, and the infrared photoelectric sensor includes:

an infrared emitting tube, the infrared emitting tube is arranged on the through hole on one side of the dropper holder;

A photosensitive receiving tube, the photosensitive receiving tube is arranged on the through hole on the other side of the dropper holder.

Preferably, the detachable structure includes:

a sleeve, the sleeve is sleeved on the hanging rod;

A locking screw, the locking screw is screwed on the sleeve and one end is in contact with the hanging rod, so as to fix the sleeve on the hanging rod.

Preferably, the side of the dropper holder is further provided with a long opening, and the long mouth communicates with the top and bottom of the dropper holder and extends to the small hole;

The diameter of the long mouth is larger than the diameter of the hose of the infusion tube.

Preferably, the display device is a digital display tube.

Preferably, the display device is a display screen.

Preferably, at least one control button is also included, and the control button is electrically connected to the display device.

Preferably, the control buttons include a start button, and/or a stop button, and/or a reset button.

Preferably, the signal processing device includes a digital signal processor and/or a single-chip microcomputer.

Preferably, the dropper holder is made of transparent material.

The present invention has the following beneficial effects:

The infrared intravenous drip meter has the advantages of strong anti-interference ability, high accuracy and sensitive response. It can detect the instantaneous change of the signal generated when the droplet passes through the dropper, and can measure the infusion in real time intuitively and accurately, which is different from the traditional infusion. Compared with the recording mode, the instrument reduces the tedious labor of medical staff, increases the reliability of the infusion dosage, and records the infusion process in real time and can be checked.

Description of drawings

Fig. 1 is in the preferred embodiment of the present invention, the structural representation of a kind of infrared static drip meter;

Fig. 2 is the enlarged view of A area in Fig. 1;

3 is an equivalent circuit diagram of a sensing device in a preferred embodiment of the present invention;

FIG. 4 is an equivalent circuit diagram of a signal processing apparatus in a preferred embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

The present invention provides an infrared static drip meter, as shown in Figures 1 to 2, comprising:

Hanging rod 1, the hanging rod 1 is provided with:

The first hook 11, the first hook 11 is arranged on the top of the hanging rod 1,

At least one second hook 12 is provided on the top side of the hanging rod 1 .

The dropper holder 2 is connected to the hanging rod 1 through a detachable structure 13, and the dropper holder 2 is a tubular structure with an open top and a hollow for the dropper of the infusion tube to be placed;

A through hole 22 is correspondingly arranged on both sides of the dropper holder 2; the through hole 22 is located above the liquid level of the droplet in the dropper;

A small hole 23 is opened at the bottom of the dropper holder 2; the diameter of the small hole 23 is greater than the diameter of the hose of the infusion tube, and the diameter of the small hole 23 is smaller than the diameter of the dropper of the infusion tube;

The sensing device 24, the sensing device 24 is arranged on the through holes 22 on both sides of the dropper holder 2;

a signal processing device 25, the signal processing device 25 is arranged on the dropper holder 2 and is electrically connected with the sensing device 24;

The display device 26 is arranged on the dropper holder 2 and is electrically connected with the signal processing device 25 .

Specifically, in this embodiment, a first hook 11 is provided on the top of the hanging rod 1 for hanging the hanging rod 1 on the infusion stand, the second hook 12 is used for hanging an infusion bag or an infusion bottle, and the dropper holder 2 is used for hanging the infusion bag or infusion bottle. The dropper on which the infusion tube is placed is a hollow tube with an open top, and a through hole 22 is correspondingly provided on both sides of the dropper holder 2; When the liquid falls, it can be monitored by the sensing device 24 . A small hole 23 is provided at the bottom of the dropper holder 2; the diameter of the small hole 23 is larger than the diameter of the hose of the infusion tube to ensure that the hose of the infusion tube can pass through the small hole 23, and the diameter of the small hole 23 is smaller than The diameter of the dropper of the infusion tube ensures that the dropper can be placed in the dropper holder 2 and will not fall out of the small hole 23.

The sensing device 24 is arranged on the through holes 22 on both sides of the dropper holder 2 , and the sensing device 24 faces the dripping through the through hole 22 and monitors the dripping situation.

The signal processing device 25 is disposed on the dropper holder 2 and is electrically connected to the sensing device 24 for processing the signal input from the sensing device 24 .

The display device 26 is arranged on the dropper holder 2 and is electrically connected to the signal processing device 25 for displaying the output result of the signal processing device 25 .

As shown in FIG. 3 , it is an equivalent circuit diagram of the sensing device 24 in a preferred embodiment of the present invention. In the figure, D1 is an infrared transmitting tube, and D2 is an infrared receiving tube.

When there is no drop in the drip tube of the infusion tube, the infrared receiving tube D2 continues to receive the infrared light emitted by the infrared transmitting tube D1, and the infrared receiving tube D2 is in a conducting state at this time, and the Vout output is a low level;

When a droplet drops in the dropper of the infusion tube, when the droplet passes through the position of the through hole 22, the infrared light emitted by the infrared emitting tube D1 of the sensing device 24 is dissipated or blocked, so that the infrared receiving tube D2 cannot receive it. Infrared light, at this time, the infrared receiving tube D2 is in a cut-off state, and the Vout output is at a high level at this time.

As shown in FIG. 4 , it is an equivalent circuit diagram of the signal processing device 25 in a preferred embodiment of the present invention. In the figure, D3 is a comparator, among which, the input pin 1 of the comparator D3 is the positive input terminal, and the input pin 2 of the comparator D3 is the negative input terminal. When the input voltage of the input pin 1 of the positive input terminal is higher than the negative input terminal When the input voltage of the input pin 2 of the input end, the output pin 3 of the comparator D3 outputs a high level; when the input voltage of the input pin 1 of the positive input end is lower than the input voltage of the input pin 2 of the negative input end, the comparison The output pin 3 of the device D3 outputs a low level.

Specifically, in this embodiment, by setting the resistance values of R3 and R4, the input voltage of the input pin 1 of the comparator D3 is set to an effective voltage value, which is higher than the output value of the sensing device 24. The voltage value of the low level is lower than the voltage value of the high level output by the sensing device 24; the output Vout of the sensing device 24 is connected to the input pin 2 of the comparator D3;

When there is no drop in the dropper of the infusion tube, the output Vout is low level, that is, the input pin 2 of the comparator D3 is low level, at this time, the input voltage of the input pin 1 of the comparator D3 is higher than The input voltage of the input pin 2 of the negative input terminal, the output pin 3 of the comparator D3 outputs a high level;

When the dropper of the infusion tube drips, and the droplet passes through the position of the through hole 22, the output Vout is high level, that is, the input pin 2 of the comparator D3 is high level, and the input of the comparator D3 is at a high level at this time. If the input voltage of pin 1 is lower than the input voltage of input pin 2 of the negative input terminal, the output pin 3 of comparator D3 outputs a low level; preset when Vout2 is low level and reaches the preset effective set value When Vout2 is at high level, the infusion volume is recorded. On the contrary, when Vout2 is high level, the infusion volume is not recorded.

In this embodiment, the purpose of setting the effective voltage value is that when there is interference from other external conditions, such as light interference, gas, shaking and other interference factors, the infrared receiving tube D2 in the sensing device 24 may be mistaken because it cannot receive infrared light. When the output is at high level, by setting the effective voltage value, the infusion volume generated by the interference of the above-mentioned external conditions is filtered. When the output of the above-mentioned sensing device 24 cannot reach the effective voltage value, the infusion volume will not be counted, which effectively increases the infusion volume. accuracy of records. Further, the infusion volume is displayed on the display device 26 . Preferably, one drop of liquid is 0.05 ml, and the value displayed by the display device 26 is the accumulation of the liquid drop, so that the recorded value of the infusion volume can be displayed more intuitively.

In a preferred embodiment of the present invention, the sensing device 24 is an infrared photoelectric sensor, and the infrared photoelectric sensor includes:

Infrared emission tube, the infrared emission tube is arranged on the through hole 22 on one side of the dropper holder 2;

The photosensitive receiving tube is arranged on the through hole 22 on the other side of the dropper holder 2 .

Specifically, in this embodiment, the infrared photoelectric sensor is very suitable for monitoring the dripping situation. When the dripping liquid passes through and causes the infrared light to change, the photosensitive receiving tube will immediately generate a corresponding voltage change and form a voltage pulse signal and transmit it to the signal processing device 25 .

In a preferred embodiment of the present invention, the detachable structure 13 includes:

a sleeve 14, the sleeve 14 is sleeved on the hanging rod 1;

The locking screw 15 is screwed on the sleeve 14 and one end is in contact with the hanging rod 1 , so as to fix the sleeve 14 on the hanging rod 1 .

Specifically, in this embodiment, the detachable structure 13 includes a sleeve 14 and a locking screw 15, the sleeve 14 is sleeved on the hanging rod 1, and the locking screw 15 is screwed on the sleeve 14 and abuts the hanging rod 1. After loosening the locking screw 15, the detachable structure 13 can slide along the hanging rod 1, so that the dropper holder 2 also moves synchronously.

In a preferred embodiment of the present invention, the side of the dropper holder 2 is further provided with a long mouth 16, the long mouth 16 is connected to the top and bottom of the dropper holder 2 and extends to the small hole 23, and the diameter of the long mouth 16 is larger than that of the infusion tube diameter of the hose.

Specifically, in this embodiment, the diameter of the long mouth 16 is larger than the diameter of the infusion tube hose, and the infusion tube can be easily put into the long mouth, which is very convenient for the dropper to be taken and placed on the dropper holder 2 .

In a preferred embodiment of the present invention, the display device is a digital display tube.

Specifically, in this embodiment, the digital display tube has low cost and is simple to manufacture.

In a preferred embodiment of the present invention, the display device is a display screen.

Specifically, in this embodiment, it is more convenient to watch after setting the display screen.

In a preferred embodiment of the present invention, at least one control button is further included, and the control button is electrically connected to the display device.

Specifically, in this embodiment, the setting button is used to control the display device.

In a preferred embodiment of the present invention, the control buttons include a start button, and/or a stop button, and/or a reset button.

Specifically, in this embodiment, after the button is set, the counting function is realized and the operation is convenient for the user.

In a preferred embodiment of the present invention, the signal processing device includes a digital signal processor and/or a single-chip microcomputer.

Specifically, in a preferred embodiment, the digital signal processor has a fast processing speed and is suitable for signal processing.

In a preferred embodiment of the present invention, the dropper holder 2 is made of transparent material.

Specifically, in this embodiment, after the dropper holder 2 is set to be transparent, the dripping situation in the dropper can be directly observed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the embodiments and protection scope of the present invention. For those skilled in the art, they should be able to realize that all equivalents made by using the description and illustrations of the present invention The solutions obtained by substitutions and obvious changes shall all be included in the protection scope of the present invention.

Claims (10)

1. a kind of infrared intravenous infusion gauge characterized by comprising

Hanging rod, the hanging rod are equipped with:

First hook, first hook are set to the top of the hanging rod,

At least one second hook, second hook are set to the top-side of the hanging rod.

Dropper fixator connects the hanging rod by a detachable structure, and the dropper fixator is put for the dropper for perfusion tube The open top set and hollow tubular structure；

One through-hole of setting is respectively corresponded in the two sides of the dropper fixator, the through-hole is located at the liquid level of dropping liquid in the dropper Top；

An aperture is opened up in the bottom of the dropper fixator, the diameter of the aperture is greater than the straight of the hose of the perfusion tube Diameter, and the diameter of the aperture is less than the diameter of the dropper of the perfusion tube；

Sensing device, the sensing device are set on the through-hole of dropper fixator two sides；

Signal processing apparatus, the signal processing apparatus are set on the dropper fixator and are electrically connected with the sensing device It connects；

Display device, the display device are set on the dropper fixator and are electrically connected with the signal processing apparatus.

2. infrared intravenous infusion gauge according to claim 1, which is characterized in that the sensing device is infrared photoelectric sensing Device, the infrared photoelectric sensor include:

Infrared emission tube, the infrared emission tube are arranged on the through-hole of dropper fixator side；

Photosensitive receiving tube, the photosensitive receiving tube are arranged on the through-hole of the dropper fixator other side.

3. infrared intravenous infusion gauge according to claim 1, which is characterized in that the detachable structure includes:

Sleeve, the sleeve are sheathed on the hanging rod；

Locking screw, the locking screw is bolted on the sleeve and one end is abutted with the hanging rod, and the sleeve is consolidated Due on the hanging rod.

4. infrared intravenous infusion gauge according to claim 1, which is characterized in that dropper fixator side is additionally provided with one Long mouth, the long mouth are connected to the top and bottom of the dropper fixator and extend to the aperture；

The diameter of the long mouth is greater than the diameter of the hose of the perfusion tube.

5. infrared intravenous infusion gauge according to claim 1, which is characterized in that the display device is digital display tube.

6. infrared intravenous infusion gauge according to claim 1, which is characterized in that the display device is display screen.

7. infrared intravenous infusion gauge according to claim 1, which is characterized in that it further include an at least control button, it is described Control button is electrically connected with the display device.

8. infrared intravenous infusion gauge according to claim 7, which is characterized in that the control button includes start button, And/or stop button and/or reset button.

9. infrared intravenous infusion gauge according to claim 1, which is characterized in that the signal processing apparatus includes number letter Number processor and/or single-chip microcontroller.

10. infrared intravenous infusion gauge according to claim 1, which is characterized in that the dropper fixator is transparent material.