CN114711699A

CN114711699A - Capsule endoscope control device and system

Info

Publication number: CN114711699A
Application number: CN202210009013.XA
Authority: CN
Inventors: 金仁洙; 朴云龙
Original assignee: Andufen Corp
Current assignee: Andufen Corp
Priority date: 2021-01-05
Filing date: 2022-01-05
Publication date: 2022-07-08

Abstract

The present invention relates to a chair-based capsule endoscope control device and system for controlling a capsule endoscope to be introduced into a digestive system of a human body and acquiring an image of an organ. The present invention provides a capsule endoscope control device which is put into the alimentary canal of a subject and controls the position or the posture of a capsule endoscope provided with a magnet, the capsule endoscope control device comprising: a chair for the subject to sit down, the chair including a seat portion and a backrest portion connected to the seat portion; and a magnet controller provided in the backrest portion, the magnet controller including a control magnetic force generating portion for adjusting a position or a posture of the capsule endoscope, the control magnetic force generating portion being movable in at least one direction.

Description

Capsule endoscope control device and system

Technical Field

The present invention relates to a capsule endoscope control device and system, and more particularly, to a chair-based capsule endoscope control device and system that is introduced into the digestive tract of a human body and controls a capsule endoscope (capsule device) for acquiring an image of an organ.

Background

The human digestive system is roughly divided into esophagus, stomach, small intestine and large intestine. Generally, the esophagus and stomach are observed with an upper gastrointestinal endoscope insertable into the distal end of the duodenum, and the large intestine is observed with a large intestine endoscope through which the terminal part of the ileum in the posterior part of the small intestine is observed. However, no endoscope with a complete diagnostic and/or therapeutic method has been established for the small intestine. Therefore, although various radiodiagnostic methods including barium contrast imaging and CT imaging are applied to the small intestine, the rate of diagnosis of small intestine diseases is still low.

In recent years, capsule endoscopes have been actively developed to compensate for these problems. The capsule endoscope can be swallowed through the oral cavity and is divided into a capsule endoscope device using a small-sized camera or a capsule endoscope device using an ultrasonic camera, so that not only the esophagus, the stomach and the small intestine but also the large intestine can be observed.

However, in the related art, when a capsule endoscope apparatus using a small camera is used, it is difficult to closely adhere to the inner wall of the intestines and stomach in the digestive system, and thus it is difficult to photograph images at a short distance, and it is also difficult to photograph peripheral organs around the intestines and stomach. Therefore, there is an inconvenience that a CT scan alone or an ultrasonic endoscope using a probe is required in order to examine organs around the intestines and stomach, such as pancreas.

Although a capsule endoscope apparatus to which an ultrasonic camera is applied acquires an ultrasonic image by transmitting and receiving ultrasonic waves, the ultrasonic image requires a special analysis unlike an image captured by a small-sized camera. That is, it is difficult for an ultrasonic image to derive an accurate examination result unless a professional analyst is present.

On the other hand, in the case where a magnet (magnet) is attached to the capsule endoscope, a technique is known in which the position of the capsule endoscope in the body is controlled using a capsule endoscope control device provided outside the body. However, the conventional capsule endoscope control device is configured as a bed (bed) type, and has a problem that a large magnetic force must be generated in order to control the position of the capsule endoscope to be injected into the body, and it is difficult to precisely control the position of the capsule endoscope.

Documents of the prior art

Patent document

Korean patent laid-open publication No. 10-2009-0085634

Disclosure of Invention

An object of the present invention is to provide a chair-based capsule endoscope control device and system that can easily acquire images of the upper gastrointestinal tract and organs around the intestines and stomach (e.g., pancreas, heart, etc.) by easily controlling the position and posture of a capsule endoscope.

The present invention provides a capsule endoscope control device which is put into the alimentary canal of a detected person and controls the position or the posture of a capsule endoscope with a magnet, the capsule endoscope control device comprises: a chair for the subject to sit down, the chair including a seat portion and a backrest portion connected to the seat portion; and a magnet controller provided in the backrest portion, the magnet controller including a control magnetic force generating portion for adjusting a position or a posture of the capsule endoscope, the control magnetic force generating portion being movable in at least one direction.

Further, the present invention provides a capsule endoscope control device which is put into an alimentary canal of a subject and controls a position or a posture of a capsule endoscope including a magnet, the capsule endoscope control device including: a chair for the subject to sit down, the chair including a seat portion, a backrest portion connected to the seat portion, and a backrest side portion connected to one side of the backrest portion; and a magnet controller provided at the back side portion, the magnet controller including a control magnetic force generating portion for adjusting a position or a posture of the capsule endoscope, the control magnetic force generating portion being movable in at least one direction.

In one embodiment, the magnet controller may extend from the side of the backrest to at least a portion of the backrest.

In one embodiment, the backrest side portion may be formed in a curved surface and provided in a form to cover at least a part of the lateral waist and abdomen of the subject.

In one embodiment, the magnet controller comprises: a first moving unit for moving the control magnetic force generating unit in a first direction; and a second moving part for moving the control magnetic force generating part in a second direction.

Further, the magnet controller includes: a moving block provided with the control magnetic force generating unit; and a guide portion including the first moving portion for moving the moving block in the first direction, the guide portion being movable in the second direction along the second moving portion.

The control magnetic force generating unit may be formed in a spherical shape, and the moving block may include a driving roller for rotating the control magnetic force generating unit in at least one direction.

Also, the control magnetic force generating part may be formed in a disc shape or a spherical shape, and the moving block has a gimbal structure to rotatably support the control magnetic force generating part.

Further, the moving block may be provided on an inner side surface of the backrest portion or the backrest side portion. In this case, the moving block includes: a first block provided with the control magnetic force generating part; and a second block connected to the first block by an elastic part, wherein the second block is movably disposed by the first moving part.

In one embodiment, an electrode portion may be formed at the backrest portion, the electrode portion being in contact with the skin of the subject, and being communicable with the capsule endoscope through galvanic coupling.

Further, the present invention provides a capsule endoscope control system, comprising: a capsule endoscope that is inserted into the alimentary canal of a subject and includes a magnet; the capsule endoscope control device described above; and a display section that receives and displays a visual image or an ultrasonic image from the capsule endoscope.

The capsule endoscope control system may further include an operation device connected to the capsule endoscope control device by wire or wirelessly for controlling the position or posture of the control magnetic force generating unit.

Effects of the invention

According to the present invention, there is an advantage that the subject can comfortably receive the endoscopy with the capsule endoscope while sitting on the chair.

Further, according to the present invention, there is an advantage in that images of the digestive tract and the organs around the intestines and stomach (for example, pancreas, heart, etc.) on the human body can be conveniently acquired by easily controlling the position and posture of the capsule endoscope.

Further, according to the present invention, the capsule endoscope in which the position and the magnetic flux direction of the control magnetic force generating unit can be easily adjusted, and the control magnetic force generating unit can be moved across the backrest portion and the backrest side portion, thereby making it possible to easily control the inside of the digestive tract of the subject.

Drawings

FIG. 1 is a schematic, diagrammatic view of a capsule endoscope control system according to an embodiment of the present invention;

fig. 2 is a diagram showing an example of a capsule endoscope used in a capsule endoscope control system according to an embodiment of the present invention;

FIG. 3 is a perspective view illustrating a chair-based capsule endoscopic control device according to an embodiment of the present invention;

fig. 4 is an exemplary view (a cross section in a-a' direction of fig. 3) of the movement of the magnetic force generating part for control in the chair-based capsule endoscope control device according to an embodiment of the present invention;

FIG. 5 is an exemplary illustration of the structure and operation of a magnet controller in a chair-based capsule endoscopic control device according to an embodiment of the present invention;

FIG. 6 is a view showing an exemplary configuration for controlling the rotation of a magnetic force generating part in the chair-based capsule endoscope control device according to an embodiment of the present invention;

FIG. 7 is a diagram showing another aspect of a chair-based capsule endoscopic control apparatus according to an embodiment of the present invention;

fig. 8 is a diagram illustrating another embodiment of communication with a capsule endoscope in a chair-based capsule endoscope control device according to an embodiment of the present invention;

FIG. 9 is a diagram illustrating another aspect of a magnet controller in a chair-based capsule endoscopic control device according to an embodiment of the present invention;

fig. 10 is a view showing a section in the B-B' direction of fig. 9.

Description of the reference numerals

100: the capsule endoscope 200: external transceiver

300: display unit 400, 600: magnet controller

410. 610: magnetic force generating units 420, 620: moving block

430. 630: guide part 500: chair (Ref. TM. chair)

510: the base portion 520: seat part

530: backrest 540: side part of backrest

550: operating the apparatus H: subject of the test

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, when reference numerals are given to components in each drawing, the same components are given the same reference numerals as much as possible even in different drawings. In describing the present invention, if it is determined that the detailed description of the related known structure or function will obscure the gist of the present invention, the detailed description thereof will be omitted. The preferred embodiments of the present invention will be described below, but the technical spirit of the present invention is not limited or restricted by the preferred embodiments, and can be variously embodied by a person of ordinary skill in the art.

FIG. 1 is a schematic illustration of a capsule endoscope control system according to an embodiment of the present invention.

A capsule endoscope control system according to an embodiment of the present invention includes: capsule endoscope 100, external transceiver 200, display unit 300, magnet controller 400, and chair 500 provided with magnet controller 400. Magnet controller 400 may be controlled manually by a user directly or may be controlled by another operating device through a wired or wireless connection. In an embodiment, the capsule endoscope control system may further include an operating device 550 for controlling the magnet controller 400. The operating device 550 may also control an output screen of the display part 300. The operation device 550 may be constituted as an input device including a keyboard, a mouse, a joystick, or the like.

The capsule endoscope 100 is inserted into the human digestive tract, and acquires image information and/or ultrasonic information in the digestive tract while moving in the human digestive tract. The capsule endoscope 100 may include a magnet inside so that the position and orientation can be controlled by external magnetic force.

The external transceiver 200 wirelessly communicates with the capsule endoscope 100, and receives information acquired by the capsule endoscope 100 or transmits a signal for operation of the capsule endoscope 100 to the capsule endoscope 100. In one embodiment, the external transceiver 200 and the capsule endoscope may communicate wirelessly using a low power RF means such as Bluetooth. In this case, the external transceiver 200 may include an antenna 210 for wireless communication. However, in the embodiment of the present invention, the manner of wireless communication between the capsule endoscope 100 and the external transceiver 200 is not limited thereto. In addition, the external transceiver 200 may be installed on the chair 500 or may be provided separately from the chair 500.

The external transceiver 200 may be reconnected to the display part 300 by a wired or wireless manner. The display unit 300 displays image information and/or ultrasonic information received by the external transceiver 200. In an embodiment, the external transceiver 200 and the display portion 300 may be connected through a wired interface in a USB manner, but is not limited thereto. The display section 300 may be understood to include a computer device equipped with a processor that performs signal processing for displaying an image or an ultrasound image. In an embodiment, display 300 may display the position of capsule endoscope 100 in the human body. The display unit 300 may store the position information of the capsule endoscope 100 as coordinates in a memory (not shown), or may store the coordinates of the position of the affected part in the memory when the affected part in the digestive tract is displayed by the capsule endoscope 100.

The magnet controller 400 may control the position and posture of the capsule endoscope 100 using a magnetic force. The magnet controller 400 includes a control magnetic force generating portion 410. The control magnetic force generating part 410 may be provided in the form of a permanent magnet or an electromagnet. The magnet controller 400 may be provided on the chair 500, and the controlling magnetic force generating part 410 may be provided to change the direction or flux of the magnetic field or to adjust the position in the chair 500.

The chair 500 is configured to be able to receive an endoscopic examination while controlling the position and posture of the capsule endoscope 100 in a state where the subject H is seated.

The magnet controller 400 may be manually operated by a medical professional performing an ultrasound examination or may be actuated by remote operation of the medical professional (e.g., by an input device such as a joystick or keyboard). When performing a remote operation, the operating device 550 for controlling the magnet controller 400 may be connected to the magnet controller 400 by wire or wirelessly.

Fig. 2 is a diagram showing an example of a capsule endoscope used in a capsule endoscope control system according to an embodiment of the present invention.

Capsule endoscope 100 is provided in an oro-swallowable size. Referring to fig. 2, capsule endoscope 100 may include: a housing 110, a magnet 120 included in the housing 110, a circuit board 130, an optical sensor module 140 for acquiring image information, an ultrasonic sensor module 150 for acquiring ultrasonic information, a control part 160 for controlling an internal structure, a communication part 170 for wirelessly communicating with the outside, and a battery 180 for supplying power.

The capsule endoscope 100 is provided with at least one magnet 120 for controlling the position or posture of the capsule endoscope 100 by an external magnetic force. As shown in fig. 2, the housing 110 is provided with one magnet 120 at each end, so that the position and orientation of the capsule endoscope 100 can be easily controlled by external magnetic force.

The optical sensor module 140 may be a CMOS or CCD type imaging sensor. The ultrasonic sensor module 150 may include: a transducer 152, a reflector 154 for reflecting ultrasonic waves output from or input to the transducer 152, and a motor 156 for adjusting the angle by rotating the reflector 154.

The communication unit 170 may use a current coupling (galvano coupling) method or may use an RF communication technology requiring an antenna, and may support one-way wireless communication or two-way wireless communication, and the communication unit 170 may be formed of one or more Application Specific Integrated Circuits (ASICs).

Fig. 3 is a perspective view illustrating a chair-based capsule endoscope control apparatus according to an embodiment of the present invention. Fig. 4 is an exemplary view (a cross section in a-a' direction of fig. 3) illustrating the movement of the control magnetic force generating part in the chair-based capsule endoscope control device according to an embodiment of the present invention, and fig. 5 is an exemplary explanatory view illustrating the structure and operation of the magnet controller in the chair-based capsule endoscope control device according to an embodiment of the present invention. Fig. 6 is a view showing an exemplary configuration for controlling the rotation of the magnetic force generating part in the chair-based capsule endoscope control device according to an embodiment of the present invention.

The chair 500 constituting the capsule endoscope control device includes: a base portion 510 placed on a floor; a seat portion 520 which supports the lower body of the subject H by the base portion 510; a backrest part 530 connected to the seat part 520 and supporting an upper half of the subject H; and a backrest side 540 extending on one side of the backrest 530 and covering an abdominal side of the subject H. The backrest side 540 may extend from the side of the abdomen of the subject H to the front of the abdomen of the subject H, or may extend to entirely cover the left and right sides and the front of the abdomen of the subject.

The chair 500 comprises the backrest part 530 or the magnet controller 400 arranged at the backrest side part 540. The magnet controller 400 is configured to control the position or posture of the capsule endoscope 100 inserted into the alimentary canal of the subject H, and includes a control magnetic force generating unit 410. In one embodiment, a permanent magnet may be provided as the control magnetic force generating portion 410. Further, the controlling magnetic force generating part 410 may be a disk-shaped or spherical permanent magnet having a predetermined thickness. The control magnetic force generating unit 410 is preferably provided to be movable in the upper, lower, left, and right directions in the backrest 530 or the backrest side 540. Further, it is preferable that the control magnetic force generating part 410 be rotatably provided, so that the magnetic flux direction can be changed. The position and/or posture of the capsule endoscope 100 in the digestive tract of the subject H can be controlled according to the movement and/or rotation (rolling) of the control magnetic force generating portion 410.

In one embodiment, in order to move the control magnetic force generating unit 410, the magnet controller 400 includes: a first moving part 432(432a, 432b) and a second moving part 440(440a, 440 b). More specifically, the control magnetic force generating portion 410 is provided in the moving block 420, and the moving block 420 is provided in the guide portion 430 in which the first moving

portions

432a, 432b are formed. The moving block 420 may move in a first direction (up and down direction in fig. 3) along the first moving

portions

432a and 432b of the guide portion 430. Further, the guide portion 430 may move in the second direction (the left-right direction in fig. 3) along the second moving

portions

440a, 440 b. The first moving

parts

432a, 432b and the second moving

parts

440a, 440b may be provided using linear motors. Further, the first moving

parts

432a, 432b and the second moving

parts

440a, 440b may be provided in the form of chains or belts. The driving method of the first moving

parts

432a and 432b and the second moving

parts

440a and 440b may be implemented using various known techniques, and the driving method is not limited thereto.

In the embodiment of fig. 3 and 5, the first moving

portions

432a and 432b are formed in the vertical direction and the second moving

portions

440a and 440b are formed in the horizontal direction, but the directions of the second moving portions 432b and the second moving

portions

440a and 440 may be interchanged. It is important that the control magnetic force generating unit 410 is movable in position on the backrest 530 and/or the backrest side 540.

Referring to fig. 5 and 6, the control magnetic force generating unit 410 is rotatably provided in the moving block 420. When the control magnetic force generator 410 is formed in a spherical shape, the moving block 420 is provided with at least one driving roller 422 that contacts the surface of the control magnetic force generator 410, and the driving roller 422 is driven by a motor (not shown), so that the control magnetic force generator 410 can be rotated. When the control magnetic force generating unit 410 is formed in a disc shape, the control magnetic force generating unit 410 may be rotated using a gimbal structure.

Fig. 7 is a diagram illustrating another embodiment of a chair-based capsule endoscope control device according to an embodiment of the present invention.

The cross-sectional shape shown in fig. 7 is taken along the direction a-a' of fig. 3. In the embodiment of fig. 7, the backrest side 540 is configured to be rotatable with respect to the backrest 530, and the backrest side 540 is formed to cover the left and right sides and the front of the subject. The backrest side part 540 includes a first control magnetic force generator 410, and the backrest 530 includes a second control magnetic force generator 410'. The structure for moving and rotating the first and second controlling magnetic force generators 410 and 410' may be applied to the structure shown in fig. 5.

Fig. 8 is a diagram illustrating another embodiment of communication with a capsule endoscope in a chair-based capsule endoscope control device according to an embodiment of the present invention.

The backrest 530 includes an electrode unit 220 that can communicate with the human body by current (galvanic). The electrode part 220 is in direct contact with the skin of the human body. The electrode portion 220 may enable communication between the transceivers 200 inside and outside the body via galvanic coupling (galvanic coupling). The subject H may directly contact the electrode part 220 provided in the backrest part 530 in a state of sitting on a chair, and thus may communicate with the human body based on the current. In one embodiment, the electrode unit 220 may be provided in plurality, and by measuring the quality of the reception signal of a plurality of communication channels by the plurality of electrode units 220, a channel having the best communication quality may be selected as the channel for current communication. In addition, when RF communication technology using the antenna 210 is applied to perform communication between the inside and outside of the human body, a plurality of antennas 210 may be provided to improve communication performance, and the quality of a received signal of a channel may be measured to select an optimal channel.

Fig. 9 is a view illustrating another embodiment of a magnet controller in a chair-based capsule endoscope control device according to an embodiment of the present invention, and fig. 10 illustrates a B-B' direction section in fig. 9.

Magnet controller 600 according to another embodiment is located on the back side 540 and/or on the inner side (subject side) of the back rest 530.

Referring to fig. 9, a magnet controller 600 includes: a moving block 620 provided with a control magnetic force generating unit 610; a guide unit 630 having first moving

units

632a and 632b for guiding the moving block 620 to move in the first direction; and second moving

parts

640a and 640b for guiding the guide part 630 to move in the second direction. The embodiment of fig. 9 has an advantage that the controlling magnetic force generating part 610 easily comes into contact with the skin of the subject.

Referring to fig. 10, moving block 620 includes: a first block 620a for supporting the control magnetic force generating part 610; and a second block 620b connected to the first block 620a by an elastic part 622. The elastic portion 622 may be formed of at least one spring. The control magnetic force generating unit 610 is rotatably provided to the first block 620 a. In one embodiment, the second block 620b includes

guide protrusions

624a and 624b, and the guide portion 630 includes

guide grooves

632a and 632b into which the

guide protrusions

624a and 624b are inserted, so that the moving block 620 can move relative to the guide portion 630.

Since the first block 620a is elastically supported by the elastic portion 622, the controlling magnetic force generating portion 610 can be easily brought into close contact with the skin of the subject.

A procedure of performing endoscopy on the digestive tract of a subject using the capsule endoscope control system according to the present invention will be briefly described.

After the subject sits on the chair, the pairing (pairing) state of the capsule endoscope 100 and the external transceiver 200 is checked, and if there is no abnormality, the capsule endoscope 100 is swallowed. The position of the magnetic force generating part 410 for control is adjusted in consideration of the body size and sitting position of the subject. The position or orientation of the capsule endoscope 100 in the digestive tract is changed by the display unit 300 by confirming the visual image or the ultrasonic image from the capsule endoscope 100 and moving or rotating the control magnetic force generating unit 410. The capsule endoscope 100 whose position or posture is changed receives a visual image or an ultrasonic image and displays the image on the display unit 300, thereby performing an endoscopic examination.

On the other hand, when the subject ingests a predetermined amount of water (e.g., 1L or more), the stomach sags and examination of the pancreas located behind the stomach can be performed. Since the magnetic force generating part 410 for control can be moved to the lateral waist and the back of the subject, the position of the magnetic force generating part 410 for control is located at the rear of the subject rather than at the front to control the position of the capsule endoscope 100. This has the advantage that images of the upper gastrointestinal tract and the organs (pancreas, heart, etc.) surrounding the intestines and stomach of the subject can be acquired more smoothly.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes and substitutions can be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments and drawings disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to illustrate the present invention, and the scope of the technical spirit of the present invention is not limited to these embodiments. The scope of the invention should be construed in accordance with the claims and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the claims.

Claims

1. A capsule endoscope control device which is inserted into the alimentary canal of a subject and controls the position or posture of a capsule endoscope having a magnet, the capsule endoscope control device comprising:

a chair for the subject to sit down, the chair including a seat portion and a backrest portion connected to the seat portion; and

a magnet controller provided in the backrest part,

the magnet controller includes a control magnetic force generating unit for adjusting a position or a posture of the capsule endoscope, and the control magnetic force generating unit is movable in at least one direction.

2. A capsule endoscope control device which is inserted into the alimentary canal of a subject and controls the position or posture of a capsule endoscope having a magnet, the capsule endoscope control device comprising:

a chair for the subject to sit down, the chair including a seat portion, a backrest portion connected to the seat portion, and a backrest side portion connected to one side of the backrest portion; and

a magnet controller disposed at a side of the backrest,

3. The capsule endoscopic control apparatus of claim 2, wherein the magnet controller is provided extending from the backrest side portion to at least a portion of the backrest portion.

4. The capsule endoscope control device according to claim 2, wherein the backrest side portion is formed into a curved surface and provided in a form covering at least a part of the side waist and abdomen of the subject.

5. The capsule endoscopic control apparatus of any one of claims 1 to 4, wherein the magnet controller comprises: a first moving unit for moving the control magnetic force generating unit in a first direction; and a second moving part for moving the control magnetic force generating part in a second direction.

6. The capsule endoscopic control apparatus of claim 5, wherein the magnet controller comprises: a moving block provided with the control magnetic force generating unit; and a guide portion provided with the first moving portion for moving the moving block in the first direction,

the guide portion may be movable in the second direction along the second moving portion.

7. The capsule endoscope control device according to claim 5, wherein the control magnetic force generating portion is formed in a spherical shape, and the moving block includes a driving roller for rotating the control magnetic force generating portion in at least one direction.

8. The capsule endoscope control device according to claim 5, wherein the control magnetic force generating portion is formed in a disc shape or a spherical shape, and the moving block has a gimbal structure to rotatably support the control magnetic force generating portion.

9. The capsule endoscope control device of claim 6, wherein the moving block is provided on an inner side surface of the backrest portion or the backrest side portion.

10. The capsule endoscopic control apparatus of claim 9, wherein the moving block comprises: a first block provided with the control magnetic force generating unit; and a second block connected to the first block by an elastic part, wherein the second block is movably disposed by the first moving part.

11. The capsule endoscope control device according to any one of claims 1 to 4, wherein an electrode portion that is in contact with the skin of the subject and that can communicate with the capsule endoscope by current coupling is formed at the backrest portion.

12. A capsule endoscope control system, comprising:

a capsule endoscope which is inserted into the digestive tract of a subject and which is provided with a magnet;

the capsule endoscopic control apparatus of any one of claims 1 to 4; and

a display section receiving and displaying a visual image or an ultrasonic image from the capsule endoscope.

13. The capsule endoscope control system according to claim 12, further comprising an operation device connected to the capsule endoscope control apparatus by wire or wirelessly for controlling the position or posture of the control magnetic force generating portion.

14. The capsule endoscope control system according to claim 12, wherein an electrode portion that is in contact with the skin of the subject and that can communicate with the capsule endoscope by current coupling is formed at the backrest portion of the chair.