KR20150061692A - Apparatus and method for measuring pain - Google Patents

Abstract

A digital pain measuring apparatus according to an embodiment of the present invention is a portable digital oppressive pain measuring apparatus which accurately measures an oppressive pain, analyzes measured oppressive pain data, and displays analyzed data. The portable digital oppressive pain measuring apparatus comprises: a pressure sensing unit to output an electric signal according to a pressure; an A/D converter to convert the output signal of the pressure sensing unit into a digital signal; a data analysis unit to convert the output signal of the A/D converter into a force (kg) value; a data display unit to display the output signal of the analysis unit; and a control unit to control the A/D converter, the data analysis unit, and the data display unit. The portable digital oppressive pain measuring apparatus further comprises a start switch and a power down mode control unit to switch a power supply unit from a sleep mode to an operation mode if the start switch is switched on, and switch the power supply unit from the operation mode to the sleep mode if the start switch is switched off. The data analysis unit converts the output signal of the A/D converter into a force (kg) value by using the equation, y=Ax (y is a force in kg, A is a real number between 1 and 4, and x is the output signal of the A/D converter, a voltage). The data display unit displays an oppressive pain measurement value and an oppressive pain measurement graph, and the oppressive pain measurement graph includes a reference line to satisfy a condition for increasing the pressure by 1kgf/cm^2 every second.

Description

[0001] APPARATUS AND METHOD FOR MEASURING PAIN [0002]

The present invention relates to an apparatus and a method for measuring digital perturbation.

Recently, pain evaluation has been recognized as an important symptom in treating patients following body temperature, blood pressure, pulse, and respiration.

For the treatment of pain, it is necessary to measure the patient 's pain level with objective and quantitative values.

However, pain is a part of the patient's subjective feelings, which limits the patient's pain to objective data.

As an evaluation method of such an objective pain, there is currently a method of evaluating the degree of pain by observing eyebrow, forehead and eyelid movement, and the degree of pain felt by the patient is classified into one to ten levels, and the degree of pain Although the method of asking for and recognizing the pain is mainly used, the subjective feeling of pain is different depending on the patient, and objective measurement of the pain is not being made.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art.

A device for measuring the pain felt when applying pressure to the skin is generally referred to as a trocar or tender. Conventional pressure vessels are roughly divided into analog pressure vessels and electron pressure vessels. The conventional analog pressure tester is difficult to accurately record the measured value of the pressure tester displayed by the measurer in real time, and it is difficult to measure the pain due to the minute pressure. In addition, the conventional electronic pressure vessel is disadvantageous in that it is inconvenient to use because a pressure measuring probe, a switch and a printer are connected by a line, and measurement data can not be stored, and it is difficult to measure a pressure in an accurate pain area.

According to this characteristic, the pain can be measured objectively and precisely before treating the patient, so that the medical staff can perform the appropriate treatment, and the pain can be measured even after the treatment, and the patient can be observed and observed.

1 is a schematic block diagram of a digital pain measuring apparatus according to an embodiment of the present invention.
2 is a perspective view of a digital pain measuring apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating an operation of the digital pain measuring apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Hereinafter, an apparatus and method for measuring digital pain according to an embodiment of the present invention will be described.

First, a digital pain measuring apparatus according to an embodiment of the present invention will be described with reference to FIG.

1 is a block diagram for explaining a portable digital pressure vessel according to a preferred embodiment of the present invention. Referring to FIG. 1, a pressure sensing unit 100, an A / D converter 200, a data analyzing unit 400 A digital control unit 300, a data display unit 500, a switch unit, and a power down mode control unit 600.

Referring to FIG. 1, the pressure sensing unit 100 outputs an electrical signal corresponding to a pressure. To this end, the pressure sensing unit 100 includes a pressure sensor 100a, a pressure sensor driving unit, a current-voltage conversion unit 100b, an amplification unit 100c, and a low-pass filter 100d. As the pressure sensor 100a, a Flexiforce Pressure Sensor A101 (Flexiforce) capable of measuring a pressure ranging from 0 to 25 lb (111N) when a force is applied in an active sensing area having a diameter of 10 mm can be used The FlexiPress pressure sensor has a high resistance value (several MΩ) when there is no pressure, and when the pressure is applied, the resistance value decreases (several k?). The pressure sensor driving unit drives the pressure sensor to output a current signal according to the applied pressure. The current-voltage conversion unit 100b converts the output current signal into a voltage signal, and the amplification unit 100c converts the current signal into a voltage signal. . Pass filter 100d having a cut-off frequency of 10 Hz to remove noise from the output signal of the amplifier 100c.

The A / D converter 200 converts the output signal of the pressure sensing unit 100 into a digital signal and outputs the digital signal to the data analyzer 400.

The data analyzer 400 includes a microcontroller and converts the output signal of the A / D converter 200 into a value corresponding to a force (kg). At this time, the conversion is obtained by the equation (2).

[ Equation  2]

y = 2.3595x

(Where y is the force (kg) and x is the voltage value which is the output signal of the A / D converter)

Here, the coefficient 2.3595 is a slope obtained from a calibration curve for converting the voltage value of the A / D converter 200 into a force. That is, in order to convert a voltage value, which is an output signal of the A / D converter 200, into a force in the data analysis unit 400, a formula for conversion (calibration) is required, which is obtained from a calibration curve. As shown in FIG. 2, calibration curves were obtained by measuring the voltage value against a force using weights of 100 g, 500 g, 1 kg, 2 kg, and 5 kg and an electronic balance, respectively, and the slope obtained in the thus obtained graph (calibration curve) Is the slope of Equation 2.

The data display unit 500 displays an output signal of the data analysis unit 400 and simultaneously displays a tenderness measurement value and a tenderness measurement graph. The pressure gauge graph shows the baseline and actual measured pressure gauge to satisfy the condition of increasing the pressure by 1kgf / cm2 every second. By providing this baseline on the graph, it is possible to provide the user with an increased pressure constantly at a predetermined value every second.

The power down mode control unit 600 changes the power supply unit from the sleep mode to the operation mode when the start switch 701 is turned on and changes the power supply unit from the operation mode to the sleep mode when the start switch 701 is turned off .

In addition, the alarm unit 800 helps to provide a constant pressure to the user by fitting a buzzer every second to the baseline displayed on the data display.

The switch unit is provided with a power switch 703, a start switch 701, a stop switch 702, and a reset switch 704. The power switch 703 is a switch for turning on / off the power source. The start switch 701 is a switch for switching from the sleep mode to the operation mode. When the power switch 703 is turned on, The power supply unit is changed from the sleep mode to the operation mode when the start switch 701 is turned on and the power supply unit is changed from the operation mode to the sleep mode when the start switch 701 is turned off Thereby minimizing the power consumption of the portable digital pressure vessel system according to the present invention. The reset switch 704 is a switch used to initialize the portable digital pressure vessel, and the stop switch 702 is a switch for allowing a user to stop the pressure vessel at the highest point of the tack.

The digital controller 300 and the power down mode controller 600 as well as the data analyzer 400 may include a microcontroller and may include a data analyzer 400, The microcomputer 600 may be configured as one microcontroller. The digital control unit 300 controls the A / D converter 200, the data analysis unit 400, and the data display unit 500.

In particular, according to the present invention, by providing a constant baseline and an alarm of an alarm part on a pressure measurement graph of a data display part, it is possible to obtain reliable data by maintaining a constant speed to a user during pressure measurement.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: pressure sensing unit 200: A / D converter
300: Digital control unit 400: Data analysis unit
500: data display section 600: switch section

Claims (2)

A pressure sensing unit for outputting an electrical signal according to a pressure,
An A / D converter for converting an output signal of the pressure sensing unit into a digital signal,
A data analyzer for converting an output signal of the A / D converter into a value for a force (kg)
A data display section for displaying an output signal of the analysis section, and
And a control unit for controlling the A / D converter, the data analysis unit, and the data display unit,
A start switch;
And a power down mode controller for changing the power supply from the sleep mode to the operation mode when the start switch is turned on and changing the power supply from the operation mode to the sleep mode when the start switch is turned off, Portable Digital Pressure Tester. The method of claim 1,
Wherein the data display unit displays a pressure measurement value and a pressure measurement graph,
Wherein the pressure measurement graph further includes a reference line for satisfying a condition for increasing a predetermined pressure every second.

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