KR100906464B1 - Endoscope and how it works - Google Patents

Abstract

The present invention relates to a capsule endoscope.

The present invention provides a capsule endoscope, comprising: an illumination element for irradiating light to a subject; At least two image acquisition units for obtaining image information of the subject; An image information processing unit converting the image information obtained by the image acquisition unit into an electrical signal and processing the converted image information; A housing including the lighting device, an image acquisition unit, and an image information processing unit; And a first electrode provided on the surface of the housing and configured to receive the electrical signal.

Therefore, according to the present invention, an image acquisition unit is provided at both sides of the housing of the endoscope, so that the whole organ can be stably photographed, and a plurality of cameras can be used for a long time using a human body communication method.

Description

Endoscope and a method for operating it}

The present invention relates to an endoscope, and more particularly to a capsule endoscope.

Endoscopy is an instrument originally designed to insert a machine into an organ in the human body where the lesion cannot be seen directly without surgery or autopsy. Endoscopes can be classified into various types, and it is called a straight tube, which has one barrel, so that the organ can be seen with the naked eye directly, the lens system is used, and the camera is inserted directly into the organ. ) And a fiber scope using glass fibers. Due to the high development of the endoscope, especially on the gastrointestinal tract, the endoscope usually refers to a gastric camera or a stomach fiberscope.

However, the above-described endoscope is due to the pain and discomfort associated with the test, so many patients may try to avoid the endoscopy and receive medication instead. Therefore, a capsule endoscope has been developed for the purpose of supplementing the above-mentioned disadvantages and in particular for the diagnosis of diseases such as the longest small intestine among the digestive organs.

A capsule endoscope is a capsule endoscope that is made so that when a patient swallows like a pill, the patient enters the digestive organs such as the stomach and the small intestine and a doctor can directly observe the digestive organs of the patient with a video screen or a computer monitor.

However, the conventional capsule endoscope described above has the following problems.

Conventional capsule endoscopes consume a lot of power by using an RF method to transmit a video signal. Therefore, the entire body cavity (esophagus, stomach, small intestine, large intestine) could not be seen using the capsule endoscope, and the capsule had to have a long operating time (oprerating time) of about 5 to 6 hours.

In order to overcome the above-mentioned problems, a delay turn on method is mainly used. After the capsule endoscope is inserted through the oral cavity of the human body, the capsule endoscope is turned on after a predetermined time using a timer built in the capsule endoscope. It recognizes organs such as the small intestine or the large intestine and turns them on. In order to recognize the organs, the temperature of the organs, the pH of the organs (acidity of body fluids according to the organs of the human body), the shape of the organs (diameter of the small intestine large intestine), and the pressures of the small and large intestine are intended to be recognized.

However, in the above-described delay turn-on method, the capsule endoscope passing time in each organ in the human body, that is, the digestion time of the capsule endoscope differs from one person to another, so that the image information of the large intestine is acquired when the person turns on before reaching the large intestine. The disadvantage is that you can't. In addition, there is a problem that the method turned on by the long-term recognition is difficult to realize in reality. That is, it is difficult to accurately implement long-term recognition and location recognition.

And, unlike the esophagus or stomach or small intestine in the human body, in part because of the structure of the colon ascending, the endoscope movement method is a problem. In particular, since the diameter of the large intestine is larger than the small intestine, the endoscope moved by the peristalsis movement of the small intestine is difficult to move by the peristalsis of the large intestine.

In addition, in the capsule endoscope described above, the image data of the human body captured by the camera provided in the housing is transmitted to an external receiver and reproduced by the monitor. Here, since the capsule endoscope adopts the radio wave propagation method as a signal transmission method, the power consumption is large, the operation time is short, and various kinds of electromagnetic waves outside the human body may be affected. In addition, the above-mentioned radio wave propagation system has to be provided with a radio transmitter such as a modulation circuit for converting an image signal into a high frequency signal, an antenna for signal transmission, thereby increasing the volume and increasing the production cost, and has a harmful effect on the human body due to the use of high frequency. It can be.

In addition, the capsule endoscope can be tumbling in a relatively large intestine, and thus there is a problem that only an image of a part of the intestine can be photographed, not an entire view of the inside of the intestine.

The present invention is to solve the above problems, an object of the present invention is to solve the problem that only a part of the organ is taken due to the tumbling of the housing when the organ inside the human body in the capsule endoscope.

Another object of the present invention is to solve the problem that the diameter of the large intestine compared to the small intestine can not be moved by peristalsis movement.

Another object of the present invention is to solve the problem that the capsule endoscope is bulky and the production cost is increased by using the conventional radio wave propagation, and may have a harmful effect on the human body due to the use of high frequency.

In order to solve the above problems, the present invention, the capsule endoscope, the illumination element for irradiating light to the subject; At least two image acquisition units for obtaining image information of the subject; An image information processing unit which converts the image information obtained by the image acquisition unit into an electrical signal and processes the image information; A housing including the lighting device, an image acquisition unit, and an image information processing unit; And a first electrode provided on the surface of the housing and configured to receive the electrical signal.

According to another embodiment of the invention, the step of obtaining the image information of the subject in at least two directions; Converting the image information into an electrical signal; Applying current to the endoscope housing and the human body surface with the electrical signal; And by the current applied to the surface of the human body, it provides a method of operating the capsule endoscope comprising the step of reproducing the image information.

Referring to the effects of the endoscope according to the present invention described above and its operating method are as follows.

First, the endoscope can be moved by interlocking movement of each organ in the organs of the diameter of each other, and the camera can be used for a long time by reducing power consumption due to the use of the human body communication method and 3 modes while using a plurality of cameras, After administration of the human body, it is possible to photograph the lesions of the colon.

Secondly, since the antenna is not structurally required using the human body communication method, the housing is reduced in volume and does not use high frequency harmful to the human body.

Third, since the diameter of the capsule endoscope has a variable structure, it prevents the tumbling of the housing when photographing the organs, especially the large intestine inside the human body, and even if tumbling occurs, the camera is provided in both directions of the housing of the capsule endoscope, Even if the housing is tumbling, the entire organ can be photographed.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described. The same components as in the prior art are given the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

In the accompanying drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity.

1 is a view showing the structure of an embodiment of a capsule endoscope according to the present invention. Hereinafter, an embodiment of a capsule endoscope according to the present invention will be described with reference to FIG. 1.

In the capsule endoscope according to the present embodiment, two cameras 110 and 115 are provided at both ends of the housing 100. In addition, two illumination elements 120 and 125 are provided to illuminate a subject to be photographed by each of the cameras 110 and 115. Here, the two cameras 110 and 115 are provided at both ends of the housing 100 to photograph both directions of a subject (mainly an organ in the human body), and the camera may be provided in at least three directions. And, it is obvious that the apertures 110a and 115a should be provided in front of the cameras 110 and 115. In addition, the front of the camera (110, 115) is provided with lenses (110b, 115b) so that the light incident from the aperture (110a, 110b) can be focused on the camera (110, 115). It is obvious that the camera is only one embodiment of the image acquisition device. In addition, the cameras 110 and 115 are provided in different directions of the housing 100, and both ends described above are just one embodiment.

The housing 100 is a structure that surrounds and protects all parts of the transmitter such as a sensor, a battery, a PCB, and combines with both ends of a dome shape to form one exterior. Here, the housing 100 should be harmless to the human body because it is in direct contact with the human body, and should be resistant to waterproofing, disassembly, and impact. In addition, both ends of the housing 100 form a dome structure. The dome structure is provided with the above-mentioned apertures 110a and 115a to serve as a window for viewing the organs inside the human body. It should be natural to be harmless. In addition, the cameras 110 and 115 are structures for acquiring image information incident through the apertures 110a and 115a. Preferably, the angle of view is 150 degrees or more, and the focal point is 5 to 10 millimeters (mm). do. In addition, two cameras 105 and 115 may be provided to capture image information of the subject at the same time or at different times.

The image information processor 130 is provided inside the housing 100. The image information processor 130 converts the image information photographed by the cameras 110 and 115 into electrical signals and processes them. In addition, the image information processor 130 also serves as a controller for collecting and processing image information photographed by the two cameras 105 and 115.

In addition, the image information processor 130 may include a separate memory to store specifications of a camera and a light emitting diode (LED) lighting device provided in the endoscope. Therefore, when playing back the image captured by the camera, it is possible to correct the image based on the state of the camera and the lighting element.

In addition, a transmission electrode 140 may be provided on a surface of the housing 100. The transmission electrode 140 may be provided on the surface of the housing 100, and may be electrically insulated from the housing 100 and the elements provided therein.

Although not shown, a CMOS image sensor may be provided inside the cameras 110 and 115 to store image information of an object incident from the apertures 110a and 110b and the lenses 110b and 115b. In addition, the inner and outer surfaces of the apertures 110a and 110b are anti-reflective coating, so that the light projected from the illumination elements 120 and 125 can project the subject well.

In addition, a battery 150 that serves as a power source may be provided inside the cameras 110 and 115. In the present embodiment, as the battery 150, a silver oxide battery having a flat discharge voltage and less harm to a human body is used.

Briefly describing the operation of an embodiment of the capsule endoscope according to the present invention described above are as follows.

When the patient swallows the capsule endoscope described above, it enters an organ in the human body through the esophagus. In addition, various lesions and the like are photographed and reproduced in the organs of the human body.

At this time, the light projected by the lighting elements 110 and 115 passes through the lenses 110b and 115b and then illuminates the subject. The image information of the subject passes again through the lenses 110b and 115b and is captured by a CMOS image sensor such as the cameras 110 and 115. The image information processor 130 processes the image information through various circuits therein and transmits the image information to the transmission electrode 140. In addition, since the images of the housing 100 may be obtained from the cameras 110 and 115 provided in both directions of the housing 100, and the angle of view of each camera 110 and 115 is 150 degrees or more, the endoscope proceeds. You can shoot almost everything inside the organ.

In addition, the capsule endoscope may have a structure in which the diameter of the housing 100 is variable. That is, the capsule endoscope should be able to acquire images in the large intestine as well as the small intestine. The small intestine has an average diameter of about 2.5 cm, and the large intestine has a diameter of about 6 to 6.5 cm. Therefore, the capsule endoscope manufactured to the diameter of the small intestine has the possibility of tumbling in the larger intestine. In particular, for colonoscopy, it is common to preemptively preempt the large intestine such as an enema, and the likelihood of the capsule endoscope tumbling in the empty colon is even greater. Here, although the capsule endoscope according to the present invention has a camera in both directions, it is preferable to prevent tumbling for stable shooting.

In addition, the large intestine is located on the outside of the small intestine and its structural shape is located in the human body in the form of an ascending colon (shape from the bottom up). Therefore, even if the capsule endoscope enters the large intestine, it is difficult to easily pass through the large intestine, which is the ascending colon. Here, the large intestine tends to do peristalsis in relation to the above movement. That is, the large intestine does not always peristalsis, so must pass through the large intestine within the operating time of the capsule endoscope. Therefore, if the housing has a variable diameter structure capsule endoscope can fill the large intestine, and can pass through the large intestine in a relatively time according to the peristaltic movement of the large intestine.

At this time, as described above, the housing may have a variable structure in diameter, and an expansion member may be provided on the surface of the housing. That is, the expansion member 160 may be provided on the surface of the housing 100 as shown in FIG. 1B. Here, each of the expansion member 160 may be provided in a larger number than shown, the degree of expansion may also be larger. In addition, although the expansion member 160 may be sporadically provided on the surface of the housing 100 as shown, as shown in FIG. 1C, a one layer may be provided on the surface of the housing 100.

In addition, in the present embodiment, the expansion member 160 is provided on the surface of the housing 100, respectively, it is natural that the entire housing may have a structure that can be expanded as described above. In addition, the above-described expansion member 160 may not be evenly distributed on the surface of the housing 100. When it reaches the large intestine, the expansion member 160 should be provided so that the specific gravity may decrease by increasing its volume. As an example, when the liquid is provided in the expansion member 160 and the liquid is changed into a gas in the large intestine, the above-described increase in volume may be possible.

In addition, when the capsule endoscope reaches the large intestine through the stomach, the small intestine, and the like, the inflating member 160 may expand by recognizing the pressure of the large intestine or the pH of the large intestine. Alternatively, expansion by a timer may be considered. And, when the expansion member is sufficiently inflated, the diameter of the capsule endoscope should have a size similar to the diameter of the large intestine.

Therefore, in the capsule endoscope provided with the expansion member described above, the expansion member expands after entering the large intestine, and thus there is little possibility of tumbling. In addition, when the expansion member is expanded to form a structure filled with the capsule endoscope within the diameter of the large intestine, it can move in accordance with the peristaltic movement of the large intestine.

In addition, the specific gravity of the entire capsule endoscope is 0.7 or more, it may be manufactured to less than one. This is for the capsule endoscope to have a floating property, where the floating property refers to the characteristics of floating the capsule endoscope in the liquid. This is a characteristic for allowing the capsule endoscope to easily flow down the flow of body fluids. That is, the capsule endoscope within the human body generally moves only in accordance with the peristalsis movement of the organ or the flow of body fluid, and generally does not have its own moving means.

Therefore, the movement time of the capsule endoscope is very different from the stomach, small intestine transit time for each individual due to digestive capacity or physical differences in the human body. Therefore, by lowering the specific gravity of the capsule endoscope to less than 1 can easily flow down to the flow of water or body cavity fluid to reach the large intestine in a short time. In addition, when floated in the large intestine enters the colon, as well as easily pass through the colon can be passed through the large intestine by drinking water or other solutions.

Here, the capsule endoscope injected into the human body does not have a big problem in the movement of the esophagus, the stomach, or the small intestine, since it does not generally have a structure of the ascending colon. Therefore, the specific gravity when the capsule endoscope enters the large intestine may be configured to about 0.7 to 1.0. In addition, by organizing the specific gravity within the above-mentioned range in organs other than the large intestine, the long-term passage time of the endoscopes different for each person can be adjusted almost equally. That is, due to the configuration as described above it may shorten the passage time in the body cavity of the capsule endoscope.

Here, when the expansion member is provided on the surface of the capsule endoscope as described above, it is natural that the specific gravity of the capsule endoscope differs depending on whether the expansion member is expanded. In view of the above-mentioned structural features of the organ, it is preferable to adjust the specific gravity of the capsule endoscope when the expansion member is inflated to the above-described range.

In addition, the endoscope includes a controller having the following configuration to process image information of a subject acquired by cameras provided in both directions of the housing.

2 is a block diagram of one embodiment of a control unit of an endoscope according to the present invention. Referring to Figure 2, one embodiment of the control unit of the endoscope according to the present invention will be described.

In addition, the control unit is provided in the housing of the endoscope, and inputs important information of the image sensor measured at the time of production of the product and stores it in the control ASIC. The controller transmits a control signal to the image sensor provided in both directions of the housing by I2C communication. In addition, an image signal (input signal 3Mbps) captured by the image sensor is processed and output as an image signal of 6Mbps or more. Here, the image sensor is a CMOS image sensor provided in the camera.

In this embodiment, the control unit has three modes. Specifically, BS [1,0) in a bit map represents a boot sequence. When the boot sequence is 00, it is a basic mode, a delay turn on method, and a mode in which the capsule endoscope is automatically turned on after a predetermined time as described above. Therefore, the time can be adjusted according to the setting in the timer.

And, if the boot sequence is 01, it is double after single working. Only one CMOS sensor is turned on and swallowed through the human body's mouth. After a certain period of time, the other CMOS sensor is turned on to take bidirectional shooting.

If the boot sequence is 10, it is a mode in which both CMOS sensors are turned on from the beginning, that is, in a directly turn on mode. In the case of immediately turning on, in order to reduce power consumption, it is necessary to drive only a camera in one direction rather than in both directions.

By adjusting the turn-on time and the bidirectional driving time of the bidirectional endoscope having the three control modes described above, it is possible to reduce the power consumption and consequently to increase the operating time of the endoscope.

Hereinafter, an apparatus and method for reproducing image information from a signal of a transmission electrode will be described with reference to FIGS. 3 and 4.

3 is a view showing one embodiment of a transmission electrode provided in the endoscope according to the present invention.

In FIG. 3, a pair of transmission electrodes 140 are provided on the surface of the housing 100. Specifically, a pair of transmitting electrodes 140 are provided in a band form at both ends of the housing 100. Since the transmitting electrode 140 is exposed to the inside of the human body, the transmission electrode 140 should be a metal that is excellent in corrosion resistance and can be harmless to the human body to withstand reactive substances such as a digestive fluid.

In this embodiment, SUS316L or gold (Au) is used as the material of the transmission electrode 140 as a metal having excellent corrosion resistance and harmless to the human body. In addition, in order to electrically isolate the transmitting electrode 140 formed on the surface of the housing 100, the surface of the housing 100 should be a non-conductive material that is harmless to a human body and does not conduct electricity. As a non-harmless non-conductor, plastic-based peaks, polyethylene, or polyflopropylene can be used, and in order to further improve the harmlessness to the human body, Playlene coating can be used on the peak, polyethylene, or polyflopropylene.

4 is a view for explaining the principle of the communication method of the endoscope according to the present invention.

In the present embodiment, the endoscope inserted into the human body transmits data to the outside of the human body using the human body as a conductor, and more particularly, generates data in the human body and flows the current through the human body to transmit the data to the outside of the human body.

As shown in FIG. 4, the endoscope 410 located in the human body 400, for example, the digestive tract, transmits the information inside the human body to the receiver 430 located on the human body surface through the human body 420.

Specifically, it is as follows.

First, the endoscope is inserted into the human body to acquire image information of the subject in at least two directions from a camera provided in the housing. In this case, the acquisition of the image information is performed by simultaneously photographing the image information of the subject with a camera provided at both ends of the endoscope housing. As described above, at least one of the cameras may be turned on after a predetermined time.

The image information is converted into an electrical signal. The electrical signal is applied to the endoscope housing and the human body surface. Specifically, various information collected from the endoscope 410 (for example, the image, PH, temperature or electrical impedance of the human body 300, etc.) is converted into an electric signal by a CMOS image sensor inside the endoscope, etc. The image information processor is applied to the transmission electrode 140.

Then, a current flows on the surface of the human body due to a potential difference between the transmitting electrode 140 and the receiving electrode 440, thereby reproducing the image information. Specifically, it is as follows. The transmission electrode 140 is electrically connected to the human body due to the liquid in the digestive organs. Accordingly, the transmission electrode 140 is in contact with the inside of the human body 400, and a current 430 flows through the human body 400 by a potential difference between the receiving electrodes 240. At this time, the current 430 flows out of the transmission electrode 140 having a relatively high potential, flows through the human body 400 to the human body surface, and then flows back into the human body 400 through the receiving electrode 440. It flows to the transmission electrode 140 having a relatively low potential.

In addition, a current is applied to the surface of the human body by a potential difference between the transmitting electrode 140 and the receiving electrode 440, and the image information is reproduced by the current. Specifically, it is as follows. The current flowing through the human body surface forms a potential difference between the two receiving electrodes 440. As a result, a signal transmitted from the endoscope 410 located inside the human body 400 is transmitted from the receiving electrode 440 outside the human body 400. It can be detected. The receiving electrode 440 processes the received signal to restore an image signal, and displays the received signal on a monitor or stores the memory in real time.

At this time, it is also possible to display a bidirectional image of the inside of the organ taken from the camera provided in both directions of the housing together, wherein the bidirectional image is preferably taken at the same time.

5 is a circuit diagram showing the internal structure of one embodiment of the CMOS image sensor of the endoscope according to the present invention. Hereinafter, an embodiment of a CMOS image sensor of an endoscope according to the present invention will be described with reference to FIG. 5.

As shown, the CMOS image sensor 540 encodes an output signal of the pixel array 500 for capturing and storing an image signal, the reading circuit 510 for sequentially extracting the signal of each pixel, and the reading circuit 510. The encoding circuit 520, the switching circuit 530 for transmitting the signal encoded by the encoding circuit 520 by using two output lines, the current limiting circuit for adjusting the current value so that the current of a harmful size to the human body does not flow ( 540, a control circuit 550 for controlling the operation of the signal processing and lighting device 520, and an oscillation circuit 560 for determining an operating frequency.

In the present exemplary embodiment, the pixel array 500 is capable of capturing a high resolution video signal having a number of pixels of 320 × 240 and sequentially processing the stored video signals one frame per second. In addition, the control circuit 550 determines the degree of contrast within the human body based on the brightness of the light incident on the pixel array 500, while the lighting device 520 is variably operated for 5 to 200 microseconds (msec). Video signal is captured by the pixel array 500. By doing in this way, each video frame is captured at an instant and the brightness is excellent. The coding scheme adopts the PSK scheme which is simple and has a strong noise resistance.

In addition, when the switching circuit 530 receives a signal from the encoding circuit 520 and applies a signal of '1', the switching circuit 530 applies a positive voltage to the first output line 540a and grounds the second output line 540b. 'And the first output line 540a is grounded and a positive voltage is applied to the second output line 540b. In the above-described manner, the signal is transmitted by the polarity of the voltage rather than the magnitude of the voltage, thereby making it more resistant to noise.

The current limiting circuit 540 serves to prevent a current of 5 mA or more flowing through the human body. In the present embodiment, the current limiting circuit is connected to the two output lines 540a and 540b of the switching circuit 530 in series. 540). For example, when the voltage of the power supply is 10 volts, if a current limiting circuit is formed by connecting a resistor of 1000 Ω to each of the two output lines in series, the current flowing through the human body is small even though the resistance of the human body is short. Do not exceed 5 mA. In addition, by further connecting a capacitor in parallel to each resistor to remove the high-frequency components of the signal transmitted to the human body and to achieve an electrical match with the human body can be a better signal transmission.

Then, the signal passing through the current limiting circuit 540 is applied to the two transmitting electrodes 510 finally through the path described above, and transmitted to the outside of the human body. Therefore, in the conventional radio communication method, a high frequency signal of several hundred MHz is required, but in the present invention, even a low frequency signal of 10 MHz may transmit an image signal captured by the capsule endoscope to the outside of the human body.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

The capsule endoscope according to the present invention as described above, the image of the internal organs of the human body is stably secured, and can be driven for a long time, so that the inside of the large intestine can be photographed after insertion into the esophagus.

1a to 1c is a view showing the structure of one embodiment of a capsule endoscope according to the present invention,

2 is a block diagram of one embodiment of a controller of an endoscope according to the present invention;

3 is a view showing one embodiment of a transmission electrode provided in the endoscope according to the present invention,

4 is a view for explaining the principle of the communication method of the endoscope according to the present invention,

5 is a circuit diagram showing the internal structure of one embodiment of the CMOS image sensor of the endoscope according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: housing 110, 115: camera

110a, 115a: Aperture 110b, 115b: Lens

120, 125: lighting element 130: image information processing unit

140: transmitting electrode 150: battery

160: expansion member 400: human body

410: endoscope 420: receiver

430 current 440 receiving electrode

500: CMOS image sensor 510: readout circuit

520: coding circuit 530: switching circuit

540: current limiting circuit 550: control circuit

560 oscillation circuit

Claims (14)

A plurality of optical windows facing different directions; An image acquisition unit positioned behind each of the plurality of optical windows to acquire an image; A controller for outputting a control signal for acquiring the image; A transmitter for transmitting the acquired image; And Including an inflation section, The control signal is a capsule endoscope, characterized in that it comprises a delay turn on (signal turn on) signal and immediately turn on (turn on) signal. The method of claim 1, wherein the control unit, Capsule endoscope, characterized in that for outputting the first control signal to the third control signal The method of claim 2, wherein the first control signal, A capsule endoscope, characterized in that it is delayed turned on to acquire images in both directions. The method of claim 2, wherein the second control signal, Capsule endoscope characterized in that it is turned directly (on) directly to obtain an image in one direction. The method of claim 2, wherein the third control signal, A capsule endoscope, characterized in that it is directly turned on to acquire images in both directions. The method of claim 1, wherein the capsule endoscope, Capsule type endoscope, characterized in that the specific gravity is 0.7 to 1. The method of claim 1, wherein the transmitting unit, A capsule endoscope comprising two electrodes. The method of claim 1, wherein the expansion portion, Capsule endoscope, characterized in that made of silicon. At a particular location within the human body, expanding the diameter of the endoscope housing; Obtaining image information of a subject in both directions of the endoscope; Converting the image information into an electrical signal; Applying a current to the housing of the endoscope and the human body surface with the electrical signal; And The method of operating the capsule endoscope comprising the step of reproducing the image information by the current applied to the surface of the human body. The method of claim 9, wherein the obtaining of the image information comprises: The image acquisition unit provided in both directions of the endoscope housing, the method of operating the endoscope, characterized in that for simultaneously photographing the image information of the subject. The method of claim 10, And the turn-on signal is supplied to the image acquisition unit after a preset time. The method of claim 9, wherein applying current to the housing and the human body surface comprises: The electrical signal is applied to the first electrode on the surface of the housing, the current is applied by the potential difference between the first electrode and the second electrode provided on the human body surface. The method of claim 9, wherein the playing of the image information comprises: The current is applied to the surface of the human body by the current of the human body surface, the operation method of the endoscope, characterized in that the image information is reproduced by the current. delete

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