KR100457051B1 - Electric Pulp Test Apparatus and its manipulating method - Google Patents

Abstract

An object of the present invention is to provide an electric dimensional inspection apparatus and an operation method thereof, which can increase the magnitude of the current flowing to a tooth initially from a desired value in performing an electrical dimensional inspection function and can also change an increasing rate. Bar, for this purpose, the electric dimensional inspection device of the present invention includes a dimensional inspection means capable of flowing a current to the tooth to determine the presence or absence of vitality of the dimensions; Power input means for receiving power from the outside to supply power to the dimension inspection means; It is possible to set the initial step of the current flowing through the dimension inspection probe of the dimension inspection means to an arbitrary step within the maximum step range, and to set a target value to vary the rising rate for each step. Setting means; Display mode selection means for selecting a value to be displayed on the display means among the electrical measurement value generated by the dimension inspection means and the target value; Display means for displaying an electrical measurement value generated by said dimension inspection means and said target value; And control means for changing the electrical measurement value according to the target value and controlling the display means.

Description

Electric Pulp Test Apparatus and its manipulating method

The present invention relates to an electrical dimensional inspection device and an operation method thereof, and in particular, the electrical dimensional inspection device and its operation that can provide an electrical dimensional inspection function for determining the presence or absence of vitality in accordance with the response of the nerve fibers in the pulp. It is about a method.

An electric dimensional tester is a device for judging the presence or absence of vitality of the pulp according to the response of nerve fibers in the pulp by stimulating the tooth while flowing current to the tooth. It is an electronic device that is used for differential diagnosis between the root disease caused by hematologic diseases such as glomerular maxillary cyst, alveolar osteofibrosis and leukemia and tumors.

However, as can be seen in Figure 1, the conventional electric dimensional inspection device, the amount of current flowing to the teeth should always increase by a certain amount from the lowest value with time, and the patient is a fixed amount that can not change the stomach constant amount Significant time must elapse before the pain is felt, thus causing the patient to fear during that time.

In order to solve the above problems, an object of the present invention is to increase the magnitude of the current flowing to the tooth initially from the desired value in performing the electrical dimensional inspection function, and to change the rate of increase and To provide a method of operation thereof.

1 is a time-based output current waveform diagram of the electric dimension tester according to the prior art,

2a and 2a is a circuit diagram of one embodiment of the electrical dimensional inspection device according to the present invention;

Figure 3a is a waveform of output current versus time showing that the initial step can start at any step in accordance with the present invention,

Figure 3b is a waveform of output current versus time showing that the current increase in each step may be larger or smaller than conventional according to the present invention,

4 is a flow chart of the operation of the electrical inspection device according to the invention.

* Explanation of symbols for main parts of the drawings

11: rectifier 12: flyback converter

13: Probe for dimension inspection 14: Voltage detection part

15: current detector

21: Micom 22: Target value setting section

23: display unit 24: function and display mode switching unit

31: DC power input unit 32: voltage generator for control signal

In order to achieve the above object, the electrical dimension inspection device of the present invention includes a dimensional inspection means capable of flowing a current to the teeth to determine the presence or absence of vitality of the dimensions; Power input means for receiving power from the outside to supply power to the dimension inspection means; It is possible to set the initial step of the current flowing through the dimension inspection probe of the dimension inspection means to an arbitrary step within the maximum step range, and to set a target value to vary the rising rate for each step. Setting means; Display mode selection means for selecting a value to be displayed on the display means among the electrical measurement value generated by the dimension inspection means and the target value; Display means for displaying an electrical measurement value generated by said dimension inspection means and said target value; And control means for changing the electrical measurement value according to the target value and controlling the display means.

In addition, the dimensional inspection means, the rectifying unit for preventing the current flowing into the power input means; A flyback converter for boosting and outputting the voltage output from the rectifier to a high voltage; A dimensional inspection probe for applying a high voltage output from the flyback converter to flow a current through the gum; A current detector for detecting a current flowing through the dimension inspection probe; And a voltage detection unit detecting a voltage applied to the dimension inspection probe.

In addition, the operation method of the electrical dimension inspection apparatus according to the present invention comprises a first step of initializing all operations; A second step of setting the display mode according to the switching of the display mode switching unit; A third step of reading the present value and the set value; A fourth step of detecting and displaying a current voltage of the battery; A fifth step of determining whether the probe has contacted the affected part; A sixth step of determining whether the current step is the first step; And if the current step is the first step, the setting step set by the first control unit in the target value setting unit is set as the first step, and a high pressure pulse proportional to the current step is output, and if the current step is not the first step, the current step is the highest step. It is characterized in that it comprises a seventh step of judging whether or not it is smaller and increasing the step by one if it is small and not increasing the step any more if it is the same or larger.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. .

Figures 2a and 2b is a circuit diagram of an embodiment of the electrical dimension inspection apparatus according to the present invention.

First, when the DC power is input from the DC power input unit 31, the rectifier 11 prevents current from flowing to the input side, and the flyback converter 12 converts the low voltage output from the rectifier 11 into a flyback converter. The voltage of the electric dimensional inspection probe 13 is detected by the voltage dividing resistance in the voltage detection unit 14 by increasing the voltage to a high voltage. The current detecting unit 15 determines whether the dimensional inspection probe 13 is in contact with the gum of the patient (the gum is contacted between the solid line and the dotted line) by detecting a current in the dimensional inspection probe 13. To help.

When the probe 13 for dimensional inspection contacts the gum of the patient and the current detection unit 15 detects a current, an energization signal is sent to the microcomputer 21 through the target value setting unit 22, and the microcomputer 21 measures the size. The LED in the inspection probe 13 is turned on to indicate that current is flowing. When the current starts to flow through the dimensional inspection probe 13, the steps of the display unit 23 also start to increase.

On the other hand, the variable resistor 1 (VR1) and the variable resistor 2 (VR2) in the target value setting section 22 perform the functions for setting the first step and setting the rising rate, respectively. By setting the resistance value of the variable resistor 1 (VR1) to an arbitrary value so that the user can start from the desired step, the voltage applied to the probe 13 for dimensional inspection can be adjusted between 20 and 250 volts, and the variable resistor 2 (VR2) is to adjust the period of one step by changing the resistance value, and as a result, the rate (rate) of the voltage rise can be adjusted to adjust the voltage rise time. Figure 3a is a waveform of output current versus time showing that the first step can start at any step in accordance with the operation of the present invention, Figure 3b is the current increase in each step is larger or smaller than the prior art according to the operation of the present invention. This is a waveform of output current versus time showing that it can be done.

In addition, although DC power is used as an input terminal of the DC power input unit 31 for the purpose of portability, it is natural that AC power can be applied and DC conversion can be performed using a conventional converter.

4 is a flowchart illustrating the operation of the electrical dimension inspection apparatus according to the present invention.

When the power is turned on, the microcomputer 21 initializes all operations (411) and sets one of several display modes according to the switching of the display mode switching unit 24 (413). For example, the display mode can be set as shown in Table 1 below.

number Display mode 0 Ascent One Current step 2 Setting step 3 Battery voltage

The present value (current step) and the set value (target value, ascent rate and setting step) of the electric dimension inspection apparatus according to the present invention are read (415), and it is detected whether the current voltage of the battery is low voltage (417). And displays (419) or otherwise displays data of the currently set display mode on the display (421).

On the other hand, the microcomputer 21 determines whether the probe is in contact with the affected part (423), determines whether the current step is the first step (425), and if the current step is the first step, the variable resistor 1 in the target value setting part 22. The setting step set by VR1 is set as the first step (427), and a high pressure pulse proportional to the current step is output (429). If the current step is not the first step (425), it is determined whether the current step is smaller than the highest step 80 (431). If the step is small, the step is increased by 1 (433). The operator immediately removes the probe from the affected part as soon as the patient feels pain, and checks the step at that time on the display part to recognize the vitality of the pulp.

Here, reference numeral 32, which has not been described, is a voltage generator for control signals that uses the output of the DC power output unit 31 as an input to make the power supply Vcc used in the control unit.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains, and the foregoing embodiments and the accompanying drawings. It is not limited to.

According to the configuration as described above, the present invention can reduce the fear of the patient by performing the electrical dimensional examination to reduce the fear of the patient, the operator can focus more on the affected part of the patient by reducing the number of lead wires of the electronic apparatus to be placed around the operator There is a beneficial effect.

Claims (3)

Dimensional inspection means capable of passing a current to the tooth to determine the presence or absence of vitality; Power input means for receiving power from the outside to supply power to the dimension inspection means; It is possible to set the initial step of the current flowing through the dimension inspection probe of the dimension inspection means to an arbitrary step within the maximum step range, and to set a target value to vary the rising rate for each step. Target value setting means using a variable resistor; Display mode selection means for selecting a value to be displayed on the display means among the electrical measurement value generated by the dimension inspection means and the target value; Display means for displaying the electrical measurement value generated by the dimension inspection means and the target value; And Control means for varying the electrical measurement value according to the target value and controlling the display means Electrical dimension inspection apparatus comprising a. The method of claim 1, wherein the dimension inspection means, A rectifying unit for preventing current from flowing into the power input unit; A flyback converter for boosting and outputting the voltage output from the rectifier to a high voltage; A dimensional inspection probe for applying a high voltage output from the flyback converter to flow a current through the gum; A current detector for detecting a current flowing through the dimension inspection probe; And Voltage detection unit for detecting the voltage applied to the dimensional inspection probe Electrical dimensional inspection apparatus comprising a. A first step of initiating all operations; A second step of setting the display mode according to the switching of the display mode switching unit; A third step of reading the present value and the set value; A fourth step of detecting and displaying a current voltage of the battery; A fifth step of determining whether the probe has contacted the affected part; A sixth step of determining whether the current step is the first step; And If the current step is the first step, a setting step in the target value setting unit-the setting step is set by a variable resistor-is set to this initial step, and a high-voltage pulse proportional to the current step is output, and the current step is the first step. Otherwise, it is determined whether the current step is lower than the highest step, and if it is low, the current step is increased by one, and if it is equal or greater, the seventh step of no further increasing the current step. Method of operation of the electrical dimension inspection apparatus comprising a.