KR20110008632A - Apparatus for measuring the bioelectrical impedance ofa living body - Google Patents

Abstract

PURPOSE: A needle device for a surgical operation is provide to safely inject a drug solution into a region through a needle by injecting the needle to a homologous tissue or a heterologous tissue and dividing a body into a fat-free tissue and a fat tissue. CONSTITUTION: An AC signal generating part(110) generates an AC current. At least one electrode(120) is contacted with the skin of a body. A voltage signal detection part(140) measures a voltage between the electrode and a current terminal. A phase signal detection part(150) measures the phase difference of the measured voltage. A display part(160) outputs a frequency having the phase angle to the outside.

Description

Surgical needle device using bioelectrics {APPARATUS FOR MEASURING THE BIOELECTRICAL IMPEDANCE OFA LIVING BODY}

The present invention relates to a surgical needle device using a bioelectricity, and more particularly, when the surgical surgical needle penetrates the corresponding part of the living body to the outside output and display it to the injection of the drug solution in the body or fluid in the body The present invention relates to a needle for surgical operation using a bio-electric to perform a stable procedure for extraction.

Body fat meters mainly use the high electrical resistance of fat. Protein, fat, and other components in our body have different resistance values. Water, which occupies 70% of our body, flows well. However, fat is difficult to pass through ions or electrons, so electricity does not flow well.

Body fat meters send very weak electricity to your body to measure your body's resistance and calculate your body fat. The higher the resistance, the more body fat. This method is called 'bioelectrical resistance method'. Sophisticated body fat analyzers measure body fat by area, including body fat in the upper and lower body and body fat in the arms and legs.

Some products that measure body fat use a different principle.

The sebaceous gland method (caliper method), which measures the thickness of fat by tweezers with forceps, or measures the amount of body fat by analyzing the spectrum of the reflected radio waves after ultrasound or infrared rays are shot on fat.

Running and walking aerobic exercise is the best way to lose body fat. Running on a treadmill tells you how far you've run, how many calories you've burned, and your pulse rate. The amount of calories you burn while exercising is calculated based on your distance and weight. The pulse rate is measured on the palm of your hand every time your heart beats, using electrical signals from your heart.

Figure 1 shows the modeling of the human body according to the above method, which is not to calculate the impedance for each part indirectly through the equation, but to measure the impedance for each part directly at each measurement.

In general, the method of measuring impedance flows a current of a known magnitude and measures voltage at a desired area to obtain impedance according to Ohm's law. These devices include electrodes (1 ~ 8), impedance measuring circuits, electronic switches, and amplifiers. It consists of A / D converter and central control unit.

In the conventional site-specific measurement, the electrode of the current and the electrode of the voltage are always located at the same end site, but in the proposed method, the arrangement of the electrodes is freely set according to the measurement site.

For example, in order to measure the impedance Zra of the right arm, the right hand electrode 1 and the right foot electrode 5 are connected to the current terminal, and the other electrode 2 and the left hand electrode 4 of the right hand are connected to the voltage terminal so that the current It is possible to measure the impedance at the right arm where both the flowing part and the part where the voltage is measured are present at the same time.

In order to measure the impedance Zt of the body, the right hand electrode 1 and the right foot electrode 5 are connected to the current terminal, and the left hand electrode 4 and the left foot electrode 8 are connected to the voltage terminal. In the case of the right leg impedance Zrl, the right hand electrode 1 and the right foot electrode 5 are connected to the current terminal, and the other electrode 6 and the left foot electrode 8 of the right foot are connected to the voltage terminal.

The left arm and the left leg can be measured by changing the impedance measurement and the left and right of the right arm and the right leg, respectively. This method is basically based on the theory that the voltage drop only occurs where the actual current flows.

This method of impedance measurement for each part does not occur the propagation of unnecessary errors that occur in the solution of the simultaneous equations, and by directly measuring only the desired part separately, it focuses precisely on the torso part, which is difficult to measure due to respiration, heart rate, etc. can do.

For example, in order to measure the impedance Zra of the right arm, the right hand electrode 1 and the right foot electrode 5 are connected to the current terminal, and the other electrode 2 and the left hand electrode 4 of the right hand are connected to the voltage terminal so that the current It is possible to measure the impedance at the right arm where both the flowing part and the part where the voltage is measured are present at the same time.

In order to measure the impedance Zt of the body, the right hand electrode 1 and the right foot electrode 5 are connected to the current terminal, and the left hand electrode 4 and the left foot electrode 8 are connected to the voltage terminal.

In the case of the right leg impedance Zrl, the right hand electrode 1 and the right foot electrode 5 are connected to the current terminal, and the other electrode 6 and the left foot electrode 8 of the right foot are connected to the voltage terminal.

The left arm and the left leg can be measured by changing the impedance measurement and the left and right of the right arm and the right leg, respectively.

This method is basically based on the theory that the voltage drop only occurs where the actual current flows. This method of impedance measurement for each part does not occur the propagation of unnecessary errors that occur in the solution of the simultaneous equations, and by directly measuring only the desired part separately, it focuses precisely on the torso part, which is difficult to measure due to respiration, heart rate, etc. can do.

Such a bioelectrical resistance method has been applied only to basic body composition analysis through a body fat analyzer, and there is no application to medical procedures.

Accordingly, an object of the present invention is to penetrate into the homologous or heterologous tissue of the surgical needle in the corresponding area of the living body by dividing the human body into fat-fat tissue and adipose tissue as a conductor, skin layer, muscle layer, fat layer, The phase angle is displayed in frequency according to the amount of water and electrolyte contained in the nerves, blood vessels, and fluids in the body to safely infiltrate the procedure chemicals through the needles, or to extract the fluids present in those areas to the outside. There is to help.

Surgical needle device using a bio-electric of the present invention for achieving the above object is a skin layer that is a bio-surgical needle needle for receiving a weak current from the electrode while flowing a weak current through the human body By selectively penetrating the muscle layer, fat layer, blood vessels, nerves and fluid parts of the body, it is displayed at a frequency having a phase angle through heterogeneous tissues according to the amount of water and electrolytes having the conductor properties contained in each biosite. Probe needles are included to identify the infiltrated biological site by frequency.

According to the present invention, a pair of surgical needles receiving a weak current are provided, but the surgical needles are provided with current needles and probe needles, and the current needles are skin layers, muscle layers, fat layers, blood vessels, and the like. Firstly, penetrate the biological part of the nerve and body fluid area, and then insert the probe needle which functions as injection and extraction of the biological fluid. It includes so that the frequency with the intrinsic phase angle of each part of the living body will have the same voltage by the same amount of water and the amount of electrolyte.

According to the present invention, an alternating current signal generation unit for generating an alternating current, one or more electrodes that receive an alternating current through the alternating current signal generation unit, and come into contact with the skin of the body, infiltrate the chemical liquid into the body, or flow fluid in the body It is to have a syringe shape to extract the, Probe needle to form a current terminal at the syringe inlet end to receive an AC signal from the electrode, and a voltage signal detection unit for measuring the voltage between the electrode and the probe needle And a phase signal detector for measuring the phase difference of the measured voltage, a controller for calculating a phase difference detected by the phase signal detector and converting the phase difference into a frequency having a phase angle, and outputting the frequency having the phase angle to the outside. It includes as a display part.

According to the present invention, an alternating current signal generation unit for generating an alternating current, and receives an alternating current through the alternating current signal generation unit, the bio-site skin layer, muscle layer, fat layer, blood vessels, nerves and the fluid part of the fluid in the body region The needle penetrates the current needle and penetrates the chemical liquid into the body, or has a syringe shape to extract the fluid in the body, and forms a current terminal at the inlet end of the syringe to receive a weak AC signal through the current needle. Probe needle that penetrates into the living body part, voltage signal detecting unit for measuring whether the current needle and the probe needle located in the same living body part and the amount of the electrolyte having the same water content and electrolyte in the living body is the same voltage at the position, phase for measuring the phase difference of the measured voltage Calculating a phase difference detected by the signal detector and the phase signal detector and converting the signal to a frequency having a phase angle. The controller outputs the frequency having the phase angle to the outside so that the current needle and the probe needle have the same voltage because the amount of the electrolyte and the amount of the electrolyte having the conductor property penetrate into the same biological part and have the same voltage. The display unit is configured to be displayed.

According to the present invention, the voltage signal detecting unit further includes a signal amplifier for amplifying the current value and the measured voltage value.

According to the present invention, the input unit is provided with a selection key corresponding to the skin, muscle, fat, blood vessels and nerves, which are the target biological parts to be penetrated, and the current terminal of the needle in the human body after the selection key of the input unit is input. When is penetrated into the biological part, it is configured to generate a warning sound to the outside.

According to the present invention, the electrode and the pair of needles are configured to be applied by selecting a current of direct current or alternating current.

As described above, the surgical needle device using the bioelectric of the present invention is indirectly guessed the infiltration state of the needle in vivo by the operator's experience in the surgical operation through the conventional needle to the operator's skill There is a problem that the safety of the medical procedure is determined by the present invention, the present invention can accurately grasp the state in which the needle penetrated the living tissue by flowing electricity to the living body.

That is, a voltage that varies according to the amount of body fluid and the amount of electrolyte from the bioelectrical resistance value by penetrating a weak current to the living body while penetrating the surgical surgical needle that receives the current into the skin, muscle, fat, blood vessel, and nerve of the corresponding biological part. By displaying the frequency with the phase angle through the value, the needle can be accurately penetrated into the corresponding site in the living body, thereby ensuring the safety of the surgical operation.

In addition, the surgical needle device using a bio-electric of the present invention is to generate a warning sound to the outside when the surgical surgical needle using the bio-electricity to penetrate the corresponding area in the living body to provide the convenience of surgical medical procedures There is.

In addition, the surgical needle using the bio-electricity of the present invention to lessen the inconvenience to the subjects and further less fluctuations in the individual and to accurately measure the amount of fluid, such as body fat or body water amount and blood volume of the body and spinal cord of the spine It is effective.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, in the drawings, the same components or parts are to be noted that the same reference numerals as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

1 is a view showing the electrode contact position and the impedance model of the human body of the general human component measuring apparatus, Figure 2 is a view showing the principle of the bioelectric impedance analysis (Bioelectric Impedance Analysis), Figure 3 is the impedance, resistance, reactance Figure 4a is a view showing the geometric relationship between the phase angle, Figure 4a is a block diagram showing a first embodiment of the surgical needle device using the bioelectric of the present invention, Figure 4b is a surgical operation using the bioelectric of the present invention Fig. 5 is a configuration diagram showing a second embodiment of the needle device for medical treatment, and Fig. 5 is a partially enlarged cross-sectional view showing a surgical needle using a bioelectric machine according to the present invention.

First, the human body is balanced with each other in a certain ratio of body water, protein, body fat, minerals. Body Composition Analysis is an essential health checkup for analyzing and analyzing each component of the human body to diagnose and prevent various diseases of the body in advance.

In general, among many methods for body composition analysis, bioelectrial impedance analysis is mainly used.

The principle of the bioelectrical resistance method is based on conduction when current flows through an organism.

In other words, when the human body is divided into fat-fat tissue and fat tissue and considered as a conductor, conduction in the human body is proportional to the amount of water contained in the conductor and the amount of electrolyte dissolved therein.

Therefore, the lean body tissue composed of water and electrolyte has a higher conductivity and a lower resistivity than the adipose tissue that does not contain water, so that current flows easily.

Here, assuming that the composition of the conductor is uniform using a constant frequency, the resistance is proportional to the length of the conductor and inversely proportional to the cross-sectional area. The water content can be estimated by measuring the length and resistance of the conductor.

According to the present invention, when the injection solution is precisely administered to each part of the human body (skin, fat, muscle, blood vessel) through the probe needle 130b or the fluid present in the blood or the spine of the human body is extracted. The probe needle 130b is intended to accurately penetrate the administration site or the fluid extraction site.

And, the current used in the present invention can be applied by selecting a direct current or alternating current, in the present invention will be described as an embodiment for the alternating current.

As shown in Figures 2 to 5, the first embodiment of the surgical needle device using the bioelectric of the present invention is to supply a weak alternating current from the electrode while flowing a weak alternating current through the electrode 120 to the human body Selectively penetrate the receiving surgical needle 130b into the corresponding bio-parts such as skin layer, muscle layer, fat layer, blood vessel, nerve, and fluid in the body, and heterogeneous tissues according to the amount of water and electrolyte having the conductive properties contained in each biological part. It is displayed as a frequency having a phase angle through a variable voltage to include the probe portion 130b to identify the infiltrated biological part as a frequency.

As shown in Figure 4a, the surgical needle device using a bio-electric for the first embodiment

AC signal generating unit 110 for generating an AC current, AC signal is received through the AC signal generating unit 110, at least one electrode 120 in contact with the skin of the body, infiltrate the liquid into the body or extract the fluid in the body Probe needle to form a syringe, but the current terminal 131 is formed at the syringe inlet end to receive the AC signal from the AC signal generator 110 and the voltage between the electrode 120 and the current terminal 131 A voltage signal detector 140 for measuring a phase, a phase signal detector 150 for measuring a phase difference of the measured voltage, a controller 180 for calculating a phase difference detected by the phase signal detector 150 and converting the phase difference into a frequency having a phase angle; The display unit 160 outputs a frequency having the phase angle to the outside.

In addition, the second embodiment of the surgical needle device using a bioelectric of the present invention is provided with a pair of surgical needles that receive a weak alternating current through the AC signal generator, the needle for the surgical operation It consists of a needle 130a and a probe needle 130b.

The current needle 130a first penetrates into a corresponding biosite among skin layers, muscle layers, fat layers, blood vessels, nerves, and body fluids, and then inserts a probe needle 130b for injection and extraction of the biofluid into the local biological site. When penetrated into the same biological part as the current needle 130a, the moisture and electrolyte amount having the conductor property are displayed at the frequency having the intrinsic phase angle of each part of the living body by having the same voltage by the living body part of the same homologous tissue.

As shown in FIG. 4B, the surgical needle device using the specific bioelectric device according to the second embodiment of the present invention includes an AC signal generator 110 generating an AC current and an AC current through the AC signal generator 110. It is delivered, the current needle 130a that penetrates the biological part of the skin layer, muscle layer, fat layer, blood vessel, nerve and body fluid, which are the biological parts, and the syringe to infiltrate the body or extract the fluid in the body. It has a shape, but the current terminal 131 is formed at the inlet end of the syringe to receive a weak alternating current signal through the current needle 130a and penetrates the local living body, the probe needle 130b, and the same amount of water and electrolyte in the living body A voltage signal detection unit 140 measuring whether the current needle 130a and the probe needle 130b located at the site are the same voltage, and measuring a phase difference between the measured voltages A phase signal detection unit, a control unit that calculates a phase difference detected by the phase signal detection unit, and converts the phase difference signal into a frequency having a phase angle, and outputs the frequency having the phase angle to the outside to conduct the current needle 130a and the probe needle 130b. When the moisture and the electrolyte amount having the properties are located at the same biological part and have the same voltage, the moisture and the electrolyte have the intrinsic phase angle of each part of the living body.

The AC signal generator 110 generates a constant current source of 800 μA and applies a weak AC signal to the electrode of the first embodiment, and applies a weak AC signal to the current needle 130a in the second embodiment.

The electrode 120 of the first embodiment is a means for applying a weak alternating current signal to the human body, and the four electrodes and the supply and measurement electrode 120 which are composed of a pair of separate power supply and measurement electrode 120 are integrated. Two electrodes consisting of a pair of electrodes 120 may be applied.

In the present invention, the two electrodes have a disadvantage in that the accuracy is lowered by the contact resistance, so the four electrodes are mainly applied.

In order to increase the measurement and accuracy of each part, the electrode 120 uses a method of applying a current through different energization paths, measuring several times, and calculating the results of one body composition analysis. In this case, attach four or twelve electrodes 120 to the required measurement path in advance, and then, after the measurement, energize only four electrodes 120 and two remaining input and output points, respectively, and repeat the remaining disconnection according to the selection path.

Therefore, in the present invention, the measurement will be described as four electrodes regardless of the number of electrodes 120.

The electrode 120 used for the body composition analysis is applied in an adhesive type, and the electrode 120 has a contact electrode 120 because it affects the analysis value according to the degree of use of the gel, the bending of the human body and the dry skin, the attachment position, and the conductivity of the electrode 120 itself. Should be measured by grasping, stepping on, or touching it.

Therefore, the body composition is measured for each part by analyzing four electrodes using a total of eight electrodes 120 by two hands and feet of the human body, and the problem of re-measurement due to conductive hunting of the electrode 120 does not occur.

In addition, the probe needle 130b applied to the first and second embodiments penetrates into the body and is placed in the skin layer, the muscle layer, the fat layer, the nerve, and the blood vessel. Medical device used to extract the fluid to the outside.

As shown in FIG. 5, the probe needle 130b of the present invention has a syringe shape, forms a current terminal 131 at an inlet end of the syringe, and from the AC signal generator 110 through a current line (not shown). It is configured to input weak AC signal.

The probe needle 130b may be connected to any part of the skin layer, muscle layer, fat layer, nerve, blood vessel, and fluid in the body of the probe needle 130b through the voltage signal detector 140, the phase signal detector 150, and the controller 180, which will be described later. You can check if it is infiltrated.

Here, the electrode 120 and the probe needle 130b of the first embodiment and the current needle 130a and the probe needle 130b of the second embodiment can probe the path penetrated into the body by the site through the principle of the bioelectric impedance analysis. .

In other words, it is based on conduction when a weak alternating current (50 KHz, 800 µA) flows through the organism.

In other words, by dividing the human body into high fat tissue, which is a highly conductive tissue and fat, which is a low tissue, conduction in the human body is proportional to the amount of water contained in the conductor and the amount of electrolyte included therein.

Therefore, after measuring the voltage drop amount and phase angle of the current passing through the human body using the principle that the lean body composed of water and electrolyte has a higher conductivity and a lower resistivity and easier to flow current than fat tissue containing no water. Analyze body composition by calculating resistance with Ohm's law (V = IR) and calculating reactance and impedance respectively.

Here, resistance (R) is the pure resistance of the conductor to the flow of current, and refers to the ability of an object to deliver current as the inverse. In Ohm's law, the resistance R is expressed as R = V / I as the ratio of the voltage V to the current I. In bioconductors, the current is mainly carried by ions and the conductivity, ie the amount of electricity conducted, is proportional to the number of ions (Ni) per unit volume (V).

Reactance (Xc) is the ability to accumulate voltage instantaneously by a capacitor in the inverse of the capacitance or capacitance, and causes a phase difference with the amplitude change between the voltage and the current for sinusoidal alternating current flowing through the circuit. It works. This involves several different types of polarization processors made by cell membrane interfaces (tissue interfaces) and non-ionized tissue.

In addition, as shown in FIG. 3, the phase angle α is an inverse tangent of the ratio of reactance to resistance, which causes a change in phase by causing a time delay in the current. For most biological conductors of reactance and phase angle, they appear less, but are an important factor in the evaluation of body composition.

In the first embodiment, the bioelectrical impedance analysis and the phase angle calculation are performed through the electrode mounted on the skin of the human body so that current flows through the heterogeneous tissue and the probe needle 130b penetrating into the body tissue. Through the 150, the calculated data is calculated at a frequency having a phase angle by the controller 180 and output to the outside through the display unit 160.

The voltage signal detector 140 amplifies an AC signal passing through the human body and sends the signal to the phase signal detector 150 to convert the AC signal into a DC component and input the A / D converter of the microprocessor to measure the DC voltage.

Here, the voltage signal detector 140 includes an amplifier 170 for amplifying an AC signal passing through the human body.

The phase signal detector 150 measures a phase difference between the voltage signal of the voltage signal detector 140 and the current terminal 131 signal of the probe needle 130b and then applies a signal to the controller.

Thereafter, the controller 180 calculates a phase difference detected by the phase signal detector and converts the phase difference into a frequency having a phase angle.

At this time, the skin layer, the muscle layer, the fat layer, the blood vessels, the nerves and the fluids in the body each have different amounts of water and electrolytes having conductor properties, so that the phase angle when the electrode and the probe needle 130b penetrate into the heterogeneous tissue in vivo The frequency is converted so that the operator can more accurately identify the probe position penetrated the probe needle 130b in the subject's body.

In addition, in the second embodiment, the bioelectrical impedance analysis and the phase angle calculation are performed through the voltage signal detector 140 and the phase signal detector 150 through the current needle 130a and the probe needle 130b in the biological tissue so as to flow current to the tissue of the same kind. The data calculated by the controller 180 is calculated as a frequency having a phase angle and output through the display unit 160.

The voltage signal detection unit 140 amplifies the AC signal passing through the human body and sends it to the phase signal detection unit 150 and converts the AC signal into a DC component and inputs it to the A / D converter of the microprocessor to measure the DC voltage. It is measured whether the current needle 130a and the probe needle 130b positioned at the same biosite with the same amount of water and electrolyte as the same voltage.

Here, the voltage signal detector 140 includes an amplifier 170 for amplifying an AC signal passing through the human body.

The phase signal detector 150 measures a phase difference between the voltage signal of the voltage signal detector 140 and the current terminal 131 signal of the probe needle 130b and then applies a signal to the controller.

Thereafter, the controller 180 calculates a phase difference detected by the phase signal detector and converts the phase difference into a frequency having a phase angle.

Next, when the current needle 130a and the probe needle 130b have the same voltage because the moisture and the electrolyte amount having the conductor properties are located at the same biosite and have the same voltage through the display unit, the intrinsic phase angle of each site of the living body It is possible to more accurately identify the position of the probe penetrated the probe needle 130b in the subject's body by being displayed at a frequency having a.

Thus, the first embodiment and the second embodiment change the frequency converted in accordance with the probe situation of the probe needle 130b that penetrates each living body part in which skin, muscle, fat, blood vessel, nerve and fluid in the body are present. By identifying, it is possible to determine the location of penetration of the probe needle 130b in vivo.

As described above, the surgical needle device 100 using the bio-electricity of the present invention supplies a weak alternating current that does not cause pain to the human body, and at the same time, the surgical probe needle 130b supplies a current between homologous tissue or heterologous tissue to the corresponding biosite. The amount of body water is estimated from the bioelectrical resistance value according to the probe level applied to the skin, muscle, fat, blood vessel, and nerve, and the value is expressed as a frequency having a phase angle.

In this way, the probe needle 130b can be accurately penetrated into the in vivo site, it is possible to accurately inject the injection solution or to extract the fluid fluid in each area of the living body to ensure a more stable surgical operation.

In addition, it can reduce the discomfort to the subjects, and furthermore, the fluctuations in the individual are small, and the body fluid amount, the body water amount, the blood volume in the body, and the spinal fluid of the spinal cord can be measured.

In addition to checking the probe position of the probe needle 130b by varying the frequency when the probe needle 130b penetrates into each part of the body in vivo, when the operator directly selects each part of the body, the probe needle 130b is positioned. External notification may also be performed.

The intrinsic frequency of the skin layer, the muscle layer, the fat layer, the blood vessels and the nerves and the parts of the fluid in the body are input to the control unit, and the operator inputs the selection key of the corresponding site through the input unit provided with the selection key. When 130b penetrates into the living body, if a frequency coincides with the natural frequency of each part of the living body, the alarm sound can be generated through the speaker.

As a result, by escaping the probe method of the probe needle 130b according to the experience of the existing operator, the probe situation of the probe needle 130b is notified to the outside, so that the variation of the probe error of the probe needle 130b is small, thus ensuring a safer medical procedure. .

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a view showing the electrode contact position and the impedance model of the human body of the general human component measuring apparatus.

2 shows the principle of Bioelectric Impedance Analysis.

3 is a diagram showing the geometric relationship between impedance and resistance, reactance, and phase angle.

Figure 4a is a block diagram showing a first embodiment of a surgical needle device using a bioelectric of the present invention.

Figure 4b is a block diagram showing a second embodiment of the needle device for surgery using a bioelectric of the present invention.

Figure 5 is a partially enlarged cross-sectional view showing a surgical needle using a bioelectric of the present invention.

Explanation of symbols on the main parts of the drawings

100: needle device 110: AC signal generator

120 electrode 130a current needle

130b: probe needle 131: current terminal

140: voltage signal detector 150: phase signal detector

160: display unit 170: amplifier

180 control unit 190 input unit

Claims (7)

Surgical probe needles, which allow a weak current to flow through the electrode and receive a weak current from the electrode, are selectively infiltrated into the biological areas such as skin layer, muscle layer, fat layer, blood vessel, nerve, and fluid in the body. Bioelectrics, characterized in that it is possible to identify the biological site in which the probe needle penetrates by displaying the frequency with the phase angle through the voltage varying between the different tissues according to the amount of the electrolyte and the amount of the electrolyte properties contained in the site Needle device for surgery using. A pair of surgical needles that are supplied with a weak current, and the surgical needle is provided with a current needle and a probe needle, and the current needle is a living skin layer, muscle layer, fat layer, blood vessel, nerve, and fluid in the body. After penetrating into the corresponding biological part of the site first, the needles that inject the injection and extract the biological fluid are placed in the same biological part as the current needle when penetrating into the local biological part. Surgical needle device using a bio-electric, characterized in that it comprises a frequency having a unique phase angle of each part of the living body having the same voltage by the mass to be displayed to the outside. The method of claim 1, An alternating current signal generator for generating alternating current; At least one electrode receiving an alternating current through the alternating current signal generator and being in contact with body skin; Probe needles to penetrate the body fluid or to have a syringe shape to extract the fluid in the body, forming a current terminal at the inlet end of the syringe to receive an AC signal from the electrode, A voltage signal detector for measuring a voltage between the electrode and the probe needle; A phase signal detector for measuring a phase difference of the measured voltage; A controller for calculating a phase difference detected by the phase signal detector and converting the phase difference into a frequency having a phase angle; Surgical needle device using a bio-electric, characterized in that included as a display unit for outputting the frequency having the phase angle to the outside. 3. The method of claim 2, An alternating current signal generator for generating alternating current; An AC current is received through the AC signal generator, and a current needle penetrates into a corresponding biological part among skin parts, muscle layers, fat layers, blood vessels, nerves, and fluids in the biological part; Probe that penetrates into the body or has a syringe form to extract the fluid in the body, a current terminal at the inlet end of the syringe to receive a weak alternating current signal through the current needle and penetrates the local biosite With the needle, A voltage signal detection unit for measuring whether the current needle and the probe needle located at the same biological part with the same amount of water and electrolyte having a conductive property in the living body are at the same voltage when they are positioned; A phase signal detector for measuring a phase difference of the measured voltage; A controller for calculating a phase difference detected by the phase signal detector and converting the phase difference into a frequency having a phase angle; The display unit outputs the frequency having the phase angle to the outside so that the current needle and the probe needle are displayed at the frequency having the intrinsic phase angle of the corresponding region when the current needle and the probe needle penetrate into the same biological part and have the same voltage. Surgical needle device using a bioelectric, characterized in that consisting of. The method according to claim 3 or 4, Surgical needle device using a bio-electric, characterized in that it further comprises a signal amplifier for amplifying the current value and the measured voltage value generated in the voltage signal detection unit. The method according to claim 3 or 4, The input unit is provided with a selection key corresponding to the skin, muscle, fat, blood vessel, and nerve which are the target biological parts to be penetrated, and after the selection key of the input unit is input, the current terminal of the needle is inserted into the corresponding biological part. Surgical needle device for using a bio-electric, characterized in that configured to generate a warning sound when outside. The method according to claim 1 or 2, Surgical needle device using a bio-electric, characterized in that the electrode and a pair of needles configured to be applied by selecting a current of direct current or alternating current.

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