KR101914470B1 - Infusion detecting system - Google Patents

Abstract

The present invention relates to a liquid sensing system, and more particularly, to a liquid sensing system, which includes a liquid receiver, a liquid receiver for receiving liquid from the liquid receiver, and a liquid sensor for detecting the liquid, A fluid detection system for measuring the amount of fluid injected into a patient's body in real time by sensing the wavelength of a droplet falling freely into a fluid receptacle, including a vibration receptor that detects vibration and converts it into an analog signal .

Description

Infusion detecting system

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a liquid detection system, and more particularly, to a liquid detection system for detecting the wavelength of a droplet falling freely into a liquid storage container and measuring the amount of liquid injected into the patient in real time .

In general, a liquid used to overcome a disease by directly injecting a drug into a patient's body is a liquid pack containing a drug, a liquid tube connected to a lower portion of the liquid pack to transfer the liquid to the patient's body, And a control screw for controlling the amount of the liquid infused into the liquid storage container.

The sap solution is used as a treatment method that is highly appreciated in that the effect of treating the disease is visible and the treatment efficiency is excellent compared with the treatment time. However, when the sap stored in the sap pack is depleted, Since the needle connected to the tube must be removed promptly, there is a possibility that the medical care person or the caregiver must constantly check the sap pack until the time of depletion.

For example, when an emergency situation such as extracorporeal reflux occurs, the patient is substantially unable to cope with the situation, and the medical person or the caregiver as described above can take measures according to the situation.

In other words, if it is not continuously checked by a protector or a healthcare provider, it may be difficult to take appropriate action according to the situation.

Accordingly, a variety of research and development have been carried out to improve the above-mentioned troubles. Examples of such methods include Patent No. 83267 (Infusion Pump), Patent No. 335881 (injection method controlled by an injection pump) 428607 (Medical Infusion Pump), Patent No. 226304 (Infusion Method and Infusion Pump), etc., have been recognized in product reliability.

In particular, the infusion pump system includes a precision liquid set including a plurality of sensor devices and control means inside the apparatus and precisely controlling the amount of liquid infused into the patient, A device for injecting a liquid injection amount by a driving force of a pump is forcibly supplied with an accurate amount of liquid injection but merely achieves the purpose of controlling the liquid injection only and there is a problem of a high cost and an economical burden.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a system for notifying the surroundings of a state of a fluid pack in real time by detecting the amount of a drug introduced into the fluid container in real time.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a fluid detection system including a fluid receptacle, a fluid receptacle to which fluid is supplied from the fluid receptacle, and a fluid sensing device located in a predetermined region of the fluid receptacle, The fluid sensing device includes a vibration sensor that detects vibration and converts the vibration into an analog signal.

The liquid sensing device may further include an amplifying amplifier unit for amplifying the analog signal of the frequency receiver, a converter unit for modulating the analog signal amplified by the amplifying amplifier into a digital signal, And a control output unit.

The vibration receiving unit may further include a noise preventing cover for blocking external noise.

The control output unit may include a control unit for controlling and distributing the digital signal, a counter unit for counting and displaying the digital signal distributed from the control unit, and a sound wave generator for converting the digital signal distributed from the control unit to sound .

The counter unit may include a negative counter module for performing a magic counting process and a positive counter module for performing a positive counting process.

The sound wave generator may include a warning module that operates when the digital signal is abnormally received, and a normal module that operates when the digital signal is normally received.

The frequency receiver may further include a timer unit for measuring an interval of a droplet falling for a predetermined period of time.

The control output unit may further include a demodulation unit for performing a demodulation process, an oscillator connected to the demodulation unit for generating a carrier wave, and a transmission antenna for radiating a demodulation signal generated from the demodulation unit to a space can do.

Other specific details of the invention are included in the detailed description and drawings.

The liquid detection system according to the present invention is free from falling into the liquid container and continuously checking the wavelength of the liquid dropped when the liquid is injected into the patient through the liquid tube to prevent a medical person or a caregiver from having to watch the state of the liquid pack .

Also, the amount of the drug introduced into the patient's body can be confirmed through the detection of the number of droplets falling.

The effects according to the present invention are not limited to the contents exemplified above, and more various effects are included in this specification.

1 is a conceptual diagram of a fluid sensing apparatus to which a fluid sensing system according to an embodiment of the present invention is applied.
2 is a conceptual diagram of a fluid sensing system according to an embodiment of the present invention.
3 is a flowchart of a sound wave generator according to an embodiment of the present invention.
4 is a flowchart of a counter unit according to an embodiment of the present invention.
5 is a flowchart of a control output unit according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

Further, in the present invention, the user refers to a medical person, a patient, or any other person who can recognize the liquid solution using sap, and is not limited to a workforce in any one field.

In the present invention, the sap solution can designate the type of sap and the amount of the sap under the instruction of the medical person. The medical person can calculate the amount of the fluid injected for one minute after injecting the injection needle for injecting the fluid into the body of the patient and adjust the amount of injected fluid based on the amount of the fluid based on the calculated amount of 10 seconds to 15 seconds. In addition, the pulses per minute of the patient can be measured using a pulse meter used for pulse measurement, and then the amount of fluid to be injected can be adjusted based on the measured pulses. However, the present invention is not limited to the above embodiment, It is possible.

FIG. 1 is a conceptual diagram of a fluid sensing apparatus to which a fluid sensing system according to an embodiment of the present invention is applied.

Referring to FIG. 1, a fluid sensing system according to an embodiment of the present invention includes a fluid receptacle, a fluid receptacle to which fluid is supplied from the fluid receptacle, and a fluid sensing device located in a certain region of the fluid receptacle, The fluid sensing device includes a vibration sensor that detects vibration and converts the vibration into an analog signal.

The vibration receiving unit may further include a noise preventing cover for blocking external noise.

After the adjustment is completed, the fluid contained in the fluid pack may be discharged through the outlet. The discharge port can be selected in accordance with the difference in sectional area of the liquid pipe connected to the discharge port. The discharge port having a relatively small cross-sectional area among the plurality of discharge ports is referred to as a first discharge port (10a), and a discharge port having a relatively large cross- 2 outlet 10b. In the embodiment of Fig. 1, the liquid can be discharged through the second outlet 10b.

Subsequently, the liquid discharged through the second outlet 10b may be transferred to the liquid receiver through the liquid pipe connected to the second outlet 10b. The fluid pipe connected to the second outlet and the fluid receptacle may include a first fluid pipe (15a), an adjusting screw for adjusting the amount of fluid input into the patient's body A second infusion tube 15b connected between the infusion vessels, and a third infusion tube 15c connected between the infusion needle inserted into the patient's body and the adjustment screw.

The liquid transferred to the liquid receiving container 11 can be supplied to the inside of the liquid receiving container 11 in the form of a droplet so that the liquid can not be injected into the patient's body at once through the liquid receiving nozzle 11a located above the liquid receiving container 11 have. Accordingly, the liquid can always be filled in the liquid receiver 11 more than a predetermined amount, and the liquid can be supplied to the filled liquid surface in such a manner that the liquid drops.

In the meantime, the liquid sensing apparatus 100 using the liquid sensing system according to an embodiment of the present invention detects vibrations formed by droplets that are disposed on the outer surface of the liquid receiver 11, Can be output.

As the means for sensing the wave, there is a vibration receiving portion 110 arranged to cover the outer surface of the receiver housing 11, and the vibration receiving portion 110 may be provided with a vibration receiving portion 110 for preventing external noise from being sensed through the vibration receiving portion 110. [ A noise preventing cover 120 covering the vibration receiving portion can be disposed. The fluid sensing apparatus 100 may operate through a fluid sensing system to be described later and may be connected to the vibration receiving unit 110 and the noise preventing cover 120.

The vibration receiving unit 110 is disposed on the outer surface of the liquid receiver 11 connected to the liquid receiver to detect the ripple of the liquid droplet falling into the liquid receiver 11 and convert it into an analog signal.

In the exemplary embodiment, the liquid receiver 11 may store a certain amount of liquid so as to gradually flow the liquid stored therein, and the stored amount may be formed within a range that does not fill the liquid receiver 11 .

In addition, the liquid can be supplied from the liquid receiver 10 to the liquid receiver 11, and the liquid is supplied into the liquid receiver 11 in the form of a predetermined amount of droplets in accordance with the adjustment of the adjusting screw 12 . At this time, the droplet falls into the liquid stored in the liquid receiver 11, generates a ripple on the surface of the liquid stored in the liquid receiver 11, and transmits the vibration generated by the ripple to the outside.

The vibration receiving unit 110 may generate the analog signal by sensing the vibration, and the amplitude and the wavelength of the analog signal may be determined according to the vibration generated by the liquid droplet.

In addition, the vibration receiving unit 110 includes a noise preventing cover 120 to prevent external noise from being detected on the external surface. The noise preventing cover 120 is made of a polymer resin material so as to cover only a part of the liquid receiver 11 in which the vibration receiving part 110 is disposed or to cover the whole of the liquid receiver 11 including the vibration receiver 110. [ And is not limited to the above embodiment.

The frequency receiver 110 may further include a timer unit (not shown) separately from the counter unit 152 of the control output unit 150 to be described later. As described above, the vibration receiving unit 110 may block the external noise through the noise preventing cover 120 to increase the reliability of the analog signal generated through dropping of the droplet. However, when the liquid is injected, When the movement situation occurs, the liquid receiver 10 and the liquid receiver 11 oscillate due to the movement of the patient, and an analog signal generated irregularly as droplets drop irregularly from the liquid receiver 10 is irregularly generated .

The timer unit (not shown) may measure the interval of the droplet falling within the predetermined time obtained through the user's prediction in the frequency receiver 110, and may transmit the result to the controller 151 and store the result. Then, the measured value is compared with the measured value through real-time communication. When the abnormal value is measured, the measured value is output through the sound generating unit 151 and the counter 152 to provide an alarm for the user to recognize.

In the exemplary embodiment, the timer unit (not shown) may measure the number of droplets falling into the liquid container 11 for 10 seconds corresponding to a predetermined time. The information can be transmitted to the sound wave generating unit 151 and the counter unit 152 when the number of droplets normally inputted into the patient body is 5 or more per 10 seconds, The value of the droplet to be stored in the control unit 151 through the timer unit (not shown) may be changed depending on the sickness, condition, and dosage of the patient.

In another embodiment, the infusion of fluid may be temporarily stopped through the adjustment screw 12 and the adjustment button 152a when the patient is moving. At this time, the vibration receiving unit 110 is switched to the OFF mode and does not sense the vibration corresponding to the noise generated in the liquid receiver 11. When the movement of the patient is completed, And the control button 152a are operated, the vibration receiving unit 110 is switched to the ON mode to sense the droplet vibration generated in the liquid receiver 11.

In another embodiment, the frequency receiver 110 can measure the patient movement time when the patient's movement state is detected by interlocking with the timer unit (not shown), and when the patient does not move during the movement time And may transmit the generated analog signal to the amplifying amplifier unit 130. [

For example, as described above, it is assumed that the number of droplets injected into the patient's body in a normal posture is 5 per 10 seconds. At this time, when the patient inevitably moves while the liquid is normally injected, the liquid crystal falling into the liquid receiver 11 irregularly falls, and a timer unit (not shown) interlocked with the vibration receiver 110 senses this. The timer unit (not shown) provides the normal sensing information to the vibration receiving unit 110 so that the analog signal generated from the vibration receiving unit 110 can be regularly generated while the irregular drop of the liquid droplet is detected. It is possible to control so as to reduce errors in the estimated time of completion of the liquid injection due to alarm alarm and counting.

Therefore, while the patient is moving according to the operation of the timer unit (not shown), a normal analog signal is outputted through the vibration receiving unit 110, so that an alarm alarm due to the sound wave generating unit 151 does not occur, 151 can also be counted normally.

As the fluid sensing apparatus 100 is disposed, the fluid receptacle 11 perpendicular to the ground can be inclined due to the weight of the fluid sensing apparatus 110, 11 of the vibrating receiver 110 due to the unbalance of the liquid receiver 11.

Thereafter, the liquid transferred through the second liquid pipe 15b can control the amount of liquid to be injected into the patient's body through the adjusting screw 12, and the needle 12 and the needle And a third fluid pipe (15c) for connecting the patient's body to the patient's body.

FIG. 2 is a conceptual diagram of a fluid sensing system according to an embodiment of the present invention.

2, the liquid sensing apparatus to which the liquid sensing system according to the embodiment of the present invention is applied includes an amplifying amplifier unit for amplifying an analog signal of the frequency receiving unit, a digital signal amplifying unit for amplifying the analog signal amplified by the amplifying amplifier, And a control output section for outputting the digital signal converted by the converter section, wherein the control output section comprises: a control section for controlling and distributing the digital signal; and a control section for counting the digital signals distributed from the control section, And a sound wave generator for converting the digital signal received from the controller into sound.

The amplification amplifier 130 receives the analog signal generated from the frequency receiver 110, converts the analog signal into a strong signal, and outputs the strong signal.

That is, the amplification amplifier 130 amplifies the voltage or power of the input analog signal, and amplifies the voltage or the power of the analog signal to generate a strong signal.

The amplifying amplifier unit 130 includes at least one of a group consisting of a direct current amplifier, an ultra low frequency amplifier, an audible frequency wave amplifier, a carrier frequency amplifier, a high frequency amplifier, and a microwave amplifier, .

The analog signal amplified by the amplification amplifier unit 130 may be transmitted to the converter unit 140. [ In the converter 140, the analog signal may be converted into a digital signal through a sampling process and a quantization process.

In the exemplary embodiment, the sampling process is a process of extracting a part of the analog signal with a predetermined wavelength interval. In accordance with the sampling process, the width and period of the analog signal are fixed, The sampling process can be performed through the pulse amplitude modulation (PAM).

In addition, the sampling process may be performed through Pulse Code Modulation (PCM) in which the magnitude of the continuous moment of the analog signal is converted into a fixed length code string and sampled, but the present invention is not limited to this embodiment .

The quantization process refers to a process of converting a sampled PAM signal from an amplitude domain to a discrete value, and a level corresponding to the magnitude of the digital signal is quantized through uniform quantization regardless of the amplitude of the input PAM signal. A digital signal can be generated.

In addition, the quantized digital signal may be generated through nonlinear quantization in which the level of the digital signal quantized by the magnitude of the amplitude of the input PAM signal varies. However, the present invention is not limited to the above embodiment, The sampled signal can be modulated through the quantization method of FIG.

Meanwhile, the digital signal generated through the quantization process can be transmitted to the sound wave generator 153 and the counter unit 152 through the control output unit.

The control output unit 150 includes a control unit for controlling and distributing the digital signal, a counter unit for counting and displaying the digital signals distributed from the control unit, and a sound wave generator for converting the digital signal distributed from the control unit to sound do.

The control unit 151 includes an MCU and a PCB provided with a memory so as to receive and control the digital signal transmitted from the converter unit 140. The circuit implementation on the MCU and the PCB corresponds to a conventional technology A detailed description will be omitted below. The control unit 151 may distribute and transmit the digital signals received by the counter unit 152 and the sound wave generator 153, which are components of the control output unit.

The sound wave generator 153 can output a sound signal through the built-in speaker 153a based on the digital signal transmitted from the controller 151. [

For example, when the liquid in the liquid pack drops into the liquid container, it outputs a regular beep sound to inform that the liquid is injected into the patient's body. If the liquid is not supplied smoothly, You can output a beep sound to alert the surroundings.

The counter unit 152 may include a plurality of control buttons for controlling the function of the counter unit and a display for visually displaying the input amount of fluid and other related data values, do.

In the exemplary embodiment, the counter 152 captures a digital signal transmitted from the control unit 151, counts the digital signal, increases the count value displayed on the display 152b, Can be known.

In another exemplary embodiment, the counter unit 152 may describe the amount of liquid to be displayed on the display 152b through the adjustment button 152a based on the amount of liquid in the liquid bottle in a full state. Thereafter, the numerical value of the liquid amount described in the display 152b is decreased through the counting process, and when the numerical value converges to 0, it can be confirmed that the liquid is completely processed.

3 is a flowchart of a sound wave generator according to an embodiment of the present invention.

As described above, the control output unit can receive the generated digital signal and transmit it to the sound wave generator.

As shown in FIG. 2, the sound wave generating unit may determine whether a digital signal is received (S110). If the supply of the liquid to the liquid receiver from the liquid receiver is stopped or a digital signal is not received due to an abnormality in the connection area between the liquid receiver and the liquid receiver, a warning module located inside the sound generator is operated (S101) (Step S102).

Meanwhile, when the digital signal is received without any abnormality, the sound wave generator may determine whether the digital signal is a regular signal having a predetermined period (S120). In other words, the fact that a digital signal having a predetermined period is received means that the liquid supply from the liquid-receiving container to the liquid-receiving container is regularly performed, and the receipt of a digital signal having an irregular period means that the liquid- This means that the fluid supply is irregular.

Therefore, when a digital signal having an irregular period is received (S101), the above-described warning module operates to output a warning beep through a speaker. In the case where a digital signal is not received and an irregular period Since the same warning module operates when a digital signal is received, the beep sound to be output is also the same (S102).

On the other hand, when a digital signal having a predetermined period is received, a normal module located inside the sound wave generating unit operates (S130) to output a normal beep sound through the speaker (S140).

4 shows a flow diagram of a counter according to an embodiment of the present invention.

As described above, the counter unit 152 can visualize the transmitted digital signal and display it to the user.

As shown in FIG. 3, the counter can determine whether a digital signal has been received (S210). Then, the counter can receive the capacity value of the liquid stored in the liquid-receiving pack from the user (S220), and another counter module of the counter can operate according to the input of the liquid-receiving capacity.

For example, when receiving the capacity value of the liquid from the user, the counter unit can operate the minus counter module (S230a), output the counter anticipated value based on the numerical value, It is possible to carry out minus counting.

On the other hand, when the user does not receive the capacity value of the liquid, the counter unit can perform positive counting every time the positive counter module receives the digital signal from the initial value (S230b) have.

In addition, the control output unit may further include an initialization module (not shown), and may reset the initialization module (not shown) when the liquid receptacle is replaced after the liquid injection is completed.

Meanwhile, the control output unit can check the amount of fluid input into the patient and the current state in real time in cooperation with the mobile communication device held by the user.

For example, referring to FIG. 5, the control output unit of the liquid sensing apparatus according to another embodiment of the present invention includes a demodulation unit for performing a demodulation process, an oscillator for generating a carrier wave connected to the demodulation unit, And a transmission antenna for radiating a demodulation signal generated from the apparatus section onto the space.

The demodulation unit 154 may perform a demodulation process of receiving a pulse signal, which is a digital signal transmitted from the sound wave generator 153, and converting the received pulse signal into an analog signal. In addition, a carrier wave can be provided from the oscillator 155 connected to the demodulation unit 154, and a demodulation signal can be generated by combining the analog signal generated in the demodulation process and the carrier wave generated from the oscillator.

The carrier wave generated by the oscillator 155 refers to an AC waveform capable of receiving information through an increase in signal intensity, a change in a predetermined frequency, or a change in wavelength.

The demodulation signal can be radiated in space through the transmission antenna 156 and the mobile communication device 200 possessed by the user can receive the demodulation signal through the reception antenna 201 provided therein .

The mobile communication device 200 includes a reception antenna 201 for receiving a demodulated signal radiated in space, an RF amplifier 202 for amplifying a demodulation signal provided from the reception antenna, And a pulse output unit 204 for modulating the information into a digital signal on the basis of the information extracted from the detection unit. The digital signal output from the pulse output unit 204, The pulse signal is interlocked through the application built in the mobile communication device 200 to output the beep sound of the sound wave generator 151 according to the embodiment of the present invention and the counted numerical output of the amount of the fluid in the counter 152 However, the present invention is not limited to the above embodiment, and it is also possible to provide the user with a fluid sensing method in various forms.

Through the above-described embodiments, it is possible to prevent the need for the medical person or the caregiver to watch the state of the fluid pack by dropping freely into the fluid container and continuously checking the wavelength of the fluid dropping into the patient through the fluid pipe. , The amount of the drug introduced into the patient's body can be confirmed through the detection of the number of droplets falling.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10: fluid pack 11: fluid container
12: adjusting screw 15: fluid tube
100: Fluid sensor 110:
120: noise prevention cover 130: amplification amplifier section
140: converter section 150: control output section

Claims (8)

Fluid pack;
A receiver for receiving the sap from the sap pack; And
And a liquid sensing device located in a certain region of the liquid container,
Wherein the fluid sensing device includes a vibration receiving unit for sensing vibration and converting the sensed vibration into an analog signal,
The liquid sensing device includes:
An amplifying amplifier unit for amplifying an analog signal of the frequency receiving unit;
A converter unit for modulating the analog signal amplified by the amplifying amplifier into a digital signal; And
And a control output unit for outputting the digital signal converted by the converter unit,
The control output unit may include: a control unit for controlling and distributing the digital signal; And a counter for counting and displaying the digital signals distributed from the controller,
Wherein the counter unit includes a negative counter module for performing a negative counting process and a positive counter module for performing a positive counting process. delete The method according to claim 1,
Wherein the vibration receiving portion further comprises a noise preventing cover for blocking external noise. The method according to claim 1,
Wherein the control output unit comprises:
And a sound wave generator for converting the digital signal distributed from the controller into sound. delete 5. The method of claim 4,
Wherein the sound wave generator comprises: a warning module that operates upon receiving an abnormality of the digital signal;
And a normal module operating upon normal reception of the digital signal. The method according to claim 1,
Wherein the frequency receiver further comprises a timer section for measuring an interval of droplets falling for a predetermined period of time. 5. The method of claim 4,
The control output unit may include: a demodulation unit for performing a demodulation process;
An oscillator connected to the demodulation unit to generate a carrier wave; And
And a transmission antenna for radiating a demodulation signal generated from the demodulation unit onto a space.

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