capsule endoscope

Abstract

The capsule endoscope according to the present invention comprises a housing including a main body, a housing first end and a housing second end, an image acquisition module provided in the housing first end, a circuit processing module provided in the main body, and an information transmission module including an antenna, the antenna including an antenna arm fixed to an inner wall of the main body or to both the inner wall of the main body and the inner wall of the housing second end, the antenna arm being connected to the image acquisition module and / or the circuit processing module. The capsule endoscope according to the present invention has an excellent internal heat management effect.

Description

[Technical Field]

[0001] The present invention relates to a capsule endoscope. [Background technology]

[0002] Due to their high reliability and safety, capsule endoscopes have become an effective tool for diagnosing gastrointestinal diseases and have received international recognition in the medical device field. A capsule endoscope includes a CMOS image sensor, an optical system, a battery, a transmitting circuit, and an antenna. Images of the human gastrointestinal tract are formed on the surface of the CMOS image sensor via the optical system. The CMOS image sensor converts the optical signals into electrical signals, which are then modulated and amplified by the transmitting circuit and transmitted via the antenna. This information is received by an external receiving device and displayed on a display device. During peristaltic movement of the human gastrointestinal tract, which is painless and non-invasive, doctors can diagnose gastrointestinal diseases in the subject based on the images displayed on the display device.

[0003] Currently, capsule endoscopes such as Given's PillCam series, Olympus' EndoCapsule 10 series, and IntroMedic's MirоCam series are on the market, but because they move uncontrollably in the stomach, they are primarily used for intestinal examinations where there is no need to control their movement.On the other hand, Ancon's NaviCam series capsule endoscopes can be controlled to perform medical examinations in the stomach under the influence of an external magnetic field.

[0004] The internal heat management of a capsule endoscope has a significant impact on the examination time, imaging effect, control accuracy, etc. Due to the volume limitations of the capsule endoscope, the internal heat management method of the capsule endoscope still needs to be improved. Summary of the Invention [Problem to be solved by the invention]

[0005] To solve the related problems in the prior art, the present invention provides a kind of capsule endoscope. [Means for solving the problem]

[0006] The technical solution of the present invention is as follows: A capsule endoscope, a housing including a body portion (101), a housing first end portion (102), and a housing second end portion (103); an image acquisition module (2) disposed within the housing first end (102); a circuit processing module (3) provided in the main body (101); an information transmission module including an antenna (401); The antenna (401) includes an antenna arm (4011) fixed to the inner wall of the main body (101) or to both the inner wall of the main body (101) and the inner wall of the housing second end (103); The antenna arm (4011) is connected to the image acquisition module (2) and / or the circuit processing module (3).

[0007] Optionally, the antenna arm (4011) is attached to the inner wall surface of the main body portion (101) or to both the inner wall surface of the main body portion (101) and the inner wall surface of the housing second end portion (103), and has a protruding structure.

[0008] Optionally, an insulating thermally conductive material (5) is applied to the surface of the antenna arm (4011) and / or an insulating thermally conductive material (5) is applied to the inner wall surface of the main body portion (101) that is not covered by the antenna arm (4011), or to the inner wall surface of the main body portion (101) and the inner wall surface of the second housing end portion (103).

[0009] Optionally, an insulating heat conductive material (5) is applied to the surface of the antenna arm (4011), and an insulating heat conductive material (5) is applied to the inner wall surface of the main body portion (101) that is not covered by the antenna arm (4011), or the inner wall surface of the main body portion (101) and the inner wall surface of the second housing end portion (103), and the inner surface of the main body portion (101) or the inner surface of the main body portion (101) and the second housing end portion (103) that is coated with the insulating heat conductive material (5) has a smooth structure of uniform height without protrusions.

[0010] Optionally, the antenna arm (4011) is connected to the image acquisition module (2) and / or the circuit processing module (3) via a thermally conductive plate (7).

[0011] Optionally, the image acquisition module (2) includes an imaging module (201) and an illumination module (202), and the antenna arm (4011) is connected to the imaging module (201) and / or the illumination module (202) via a thermally conductive plate (7).

[0012] Optionally, the capsule endoscope further includes a battery, and the antenna arm (4011) is connected to the battery via a thermally conductive plate (7).

[0013] Optionally, a heat conducting plate (7) connected to the antenna arm (4011) is placed on the surface of the insulating heat conducting material (5).

[0014] Optionally, the shape of the antenna (401) may be one or a combination of a double-arm helical antenna, a helical antenna, an inverted L-shaped antenna, a T-shaped antenna, an umbrella-shaped antenna, a cage-shaped antenna, a rectangular antenna, a V-shaped antenna, a diamond-shaped antenna, a fishbone-shaped antenna, a disc-taper antenna, and a double-taper antenna.

[0015] Optionally, the device further includes a wireless charging module, the wireless charging module being disposed at the second end (103) of the housing and electrically connected to the circuit processing module (3), and the thermal conductive plate (7) being connected to the antenna arm (4011) and the wireless charging module.

[0016] The beneficial effect of the technical proposal of the present invention is to provide effective thermal management and improve the flight time of the capsule endoscope without increasing the volume of the capsule endoscope. [Brief explanation of the drawings]

[0017] The drawings are included to provide a further understanding of the invention, constitute a part of the specification, and, together with the following specific embodiments, are used to explain the invention and are not intended to be limiting thereof.

[0018] [Figure 1] 1 is a structural schematic diagram of a capsule endoscope provided by an embodiment of the present invention; [Figure 2] 1 is a schematic diagram illustrating the structure of an antenna of a capsule endoscope. [Figure 3] 3 is a schematic diagram showing a state in which the antenna arm of FIG. 2 is provided so as to surround the inner wall of the housing of the capsule endoscope. FIG. [Figure 4] FIG. 2 is a schematic cross-sectional view of a main body of the capsule endoscope. [Figure 5] 5 is a schematic cross-sectional view of another type of main body of the capsule endoscope shown in FIG. 4. FIG. [Figure 6] 3 is a cross-sectional schematic view of an intermediate layer of a main body of the capsule endoscope. FIG. [Figure 7] 7 is a cross-sectional schematic view of an intermediate layer of another type of main body of the capsule endoscope shown in FIG. 6. FIG. [Figure 8] 10A and 10B are diagrams illustrating a connection structure of a heat conduction plate of a capsule endoscope. [Figure 9] 9 is a diagram showing another type of heat conduction plate connection structure of the capsule endoscope shown in FIG. 8; [Figure 10]3 is a schematic diagram showing the structural relationship between the antenna and the heat storage material of the capsule endoscope. FIG. [Figure 11] 10A and 10B are diagrams illustrating a connection structure between a housing of a capsule endoscope and a circuit processing module. [Figure 12] FIG. 1 is a structural diagram of a wireless charging module for a capsule endoscope. [Figure 13] FIG. 10 is a structural diagram of a wireless charging module of another capsule endoscope. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, if not inconsistent, the embodiments and features in the embodiments of the present application may be combined with each other.

[0020] In the following description, many specific details are set forth to provide a thorough understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and therefore the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0021] As shown in FIGS. 1 to 13, a capsule endoscope according to the present invention includes a housing (1). The housing (1) includes a main body (101), a first housing end (102), and a second housing end (103). The main body (101) of the capsule endoscope is cylindrical, the first housing end (102) is semi-elliptical, and the second housing end (103) is also semi-elliptical. These three components combine to form a capsule-shaped endoscope, which is convenient for swallowing and examination. The capsule endoscope further includes an image acquisition module (2) provided in the first housing end (102), a circuit processing module (3) provided in the main body (101), and an information transmission module including an antenna (401). The antenna (401) is fixed to the inner wall of the main body (101) or to the inner wall of the main body (101) and the inner wall of the second housing end (103). The antenna (401) is connected to the image acquisition module (2) and / or the circuit processing module (3).

[0022] The circuit processing module (3) is composed of one or more of the following: a processor, an image accelerator, a power management IC (PMIC), an acceleration sensor, a six-axis sensor, a light sensor, and an infrared sensor.

[0023] The capsule endoscope also includes a battery (6) that supplies power to each unit of the capsule endoscope and is controlled by a power supply IC. The antenna (401) is attached to the inner wall of the housing of the capsule endoscope. Specifically, the antenna (401) may be fixed only to the inner wall of the main body (101), or may be fixed simultaneously to the inner wall of the main body and the inner wall of the second end portion (103) of the housing facing the image acquisition module (2). The antenna (401) has a protruding structure.

[0024] The antenna (401) has a thermal conductivity function. Based on the basic thermal conductivity formula "Q = K x A x ΔT / ΔL," the magnitude of thermal conductivity Q is proportional to the thermal conductivity coefficient K and the heat transfer area A, and inversely proportional to the distance ΔL. The higher the thermal conductivity, the larger the heat transfer area, and the shorter the transmission distance, the higher the thermal conduction energy and the easier it is to dissipate heat. When the antenna (401) is simultaneously fixed to the inner wall of the main body (101) and the inner wall of the second end portion (103) of the housing facing the image acquisition module (2), the antenna (401) separately covers the inner wall of the second end portion (103) of the housing, which faces the image acquisition module (2), compared to when the antenna (401) is fixed only to the inner wall of the main body (101). This increases the area of the installed antenna (401), which results in a larger thermal conduction area and a better thermal conduction effect.

[0025] 2 is a structural schematic diagram of the antenna of the capsule endoscope. As shown in FIG. 2, the antenna (401) includes an antenna arm (4011) fixed to the inner wall of the main body (101), or to the inner wall of the main body (101) and the inner wall of the second housing end (103).

[0026] The antenna arm (4011) is the main structure of the antenna (401). Specifically, as shown in Fig. 3, the entire antenna is divided into the antenna arm (4011) and a bottom antenna (4012). The bottom antenna (4012) is disposed in the second end portion (103) of the housing facing the image acquisition module (2), and the antenna arm (4011) is connected to the bottom antenna (4012). The bottom antenna (4012) is provided with a power supply port (4013) for connection to the circuit processing module (3).

[0027] The antenna (401) may be made helical and attached to the inside of the capsule housing by rotation. A helical antenna has a tendency to expand outward. The capsule housing limits this tendency, ensuring that the antenna (401) and the housing (1) form a stable, fixed structure.

[0028] The shape of the antenna arm (4011) can be one or a combination of double arm helical antenna, helical antenna, inverted L-shaped antenna, T-shaped antenna, umbrella antenna, cage antenna, rectangular antenna, V-shaped antenna, diamond antenna, fishbone antenna, disc taper antenna, and double taper antenna.

[0029] In a preferred embodiment, the antenna arm (4011) is a double-arm helical antenna, as shown in Fig. 3. The antenna arm (4011) is arranged in a spiral shape and matches the inner wall of the capsule housing so that it is attached relatively flatly to the inner wall of the capsule housing. When copper foil is used as the antenna, it can contact the inner wall over a wide surface and be attached to the inner wall, while increasing the contact area with the inner wall.

[0030] The antenna arm (4011) is made of copper foil with a width of 1 mm to 10 mm. Copper has high thermal conductivity and can quickly transfer heat throughout the entire antenna arm (4011). The thickness of the antenna arm (4011) is 0.1 mm to 1 mm.

[0031] FIG. 3 shows a case where the antenna arm (4011) is arranged so as to wrap around the inner wall of the housing of the capsule endoscope. FIG. 2 is a side view of a case where the antenna arm (4011) is arranged so as to wrap around the inner wall of the housing of the capsule endoscope in a regular spiral. The antenna arm (4011) has a continuous structure as a whole, but the present invention is not limited to this. As can be seen from FIG. 2, when the antenna arm (4011) is arranged so as to wrap around the inner wall of the housing of the capsule endoscope in a regular spiral, the antenna arm (4011) can be considered to include multiple antenna arm (4011) portions. There are gaps between the multiple portions of the antenna arm (4011).

[0032] The antenna arm (4011) is connected to the image acquisition module (2) and / or the circuit processing module (3). The antenna arm (4011) is connected to the image acquisition module (2) and / or the circuit processing module (3) via a heat-conducting wire (not shown). The heat-conducting wire may be a metal wire or the like. The information transmission module of the capsule endoscope includes an antenna (401) consisting of the antenna arm (4011) and a radio frequency circuit module (not shown). In operation mode, images of the digestive tract are acquired by the imaging module (201) and transmitted to the circuit processing module. The image data processed by the circuit processing module (3) is finally transmitted to the extracorporeal image display device via the radio frequency circuit board and antenna (401) in the information transmission module.

[0033] The antenna arm 4011 is connected to the image acquisition module 2 and / or the circuit processing module 3 via a heat-conducting wire (not shown). This allows heat from the image acquisition module 2 and / or the circuit processing module 3 to be quickly conducted to the antenna arm 4011. The antenna arm 4011 is made of a metal material and has good thermal conductivity, so that heat transmitted from the image acquisition module 2 and / or the circuit processing module 3 can be uniformly conducted to the inner wall of the capsule housing. The greater the area coverage of the antenna arm 4011, the better the heat conduction effect and the more uniform the heat transfer. Considering the actual operational needs of the capsule endoscope, the area coverage of the antenna arm 4011 is 10% to 85%, and preferably 20% to 45%.

[0034] Since the antenna arm (4011) does not cover the entire inner wall of the capsule housing, heat can be transmitted to the inner wall of the capsule housing where the antenna arm (4011) is laid out. However, since there are gaps between the multiple antenna arm (4011) portions, in the gaps where the antenna arm (4011) is not installed, the heat transmitted to the antenna arm (4011) cannot be efficiently diffused, which is likely to lead to heat accumulation.

[0035] In this embodiment, the antenna arm 4011 is packaged using an insulating heat conductive material, and the insulating heat conductive material 5 is applied to the surface of the antenna arm 4011. The insulating heat conductive material 5 is also applied to the inner wall surface of the main body 101 that is not covered by the antenna arm 4011, or to the inner wall surface of the main body 101 and the inner wall surface of the second housing end 103.

[0036] For clarity, Figure 2 shows the insulating and thermally conductive material 5 applied to the inner wall surfaces of the main body 101 that are not covered by the antenna arm 4011, or to the inner wall surfaces of the main body 101 and the inner wall surfaces of the second housing end 103. In reality, the surface of the antenna arm 4011 is also covered with the insulating and thermally conductive material.

[0037] 4 and 5 show schematic cross-sectional views of the main body 101 of the capsule endoscope. As shown in Fig. 4, the surface of the antenna arm 4011 is covered with an insulating heat conductive material 5, and the inner wall surfaces of the main body 101 that are not covered with the antenna arm 4011 and the inner wall surfaces of the second housing end 103 (only the inner wall surfaces of the main body 101 are shown in Fig. 3) are coated with the insulating heat conductive material 5. After the insulating heat conductive material 5 is coated, the inner surface of the main body 101 or the inner surfaces of the main body 101 and the second housing end 103 has a smooth structure with a uniform height and no protrusions.

[0038] As shown in Fig. 5, after the insulating thermally conductive material 5 is applied, the inner wall surface of the main body 101 may be uneven, but the present invention is not limited thereto. Although Figs. 4 and 5 only illustrate the inner wall of the main body 101, the second end 103 of the housing may be uneven, and no further explanation will be given here.

[0039] The insulating and heat-conductive material (5) is in close contact with the antenna arm (4011) and can quickly conduct heat received by the antenna arm (4011), which has a heat dissipation function, to the entire capsule housing, including the gap between the antenna arms (4011). The insulating and heat-conductive material (5) has a thickness of 0.01 to 0.1 mm.

[0040] In another embodiment, as shown in Figures 6 and 7, a heat-retaining material layer 1401 may be further provided between the antenna arm (4011) and the capsule housing. The heat-retaining material layer (1401) quickly transfers heat received from the image acquisition module (2) and / or the circuit processing module through the antenna to the entire capsule housing, preventing localized overheating. Instead of releasing the heat to the outside through the housing, the heat is retained inside the capsule, thereby concentrating the heat inside the capsule and extending the battery life. The heat-retaining material layer (1401) may include insulating materials with poor thermal conductivity, such as nano-insulation film, PFT film, polyester film, and polyimide film, but the present invention is not limited to these materials.

[0041] As mentioned above, the heat generated in the image acquisition module and the circuit processing module can be transferred to the antenna arm (4011) because the image acquisition module and the circuit processing module are connected to the antenna arm (4011) via a heat-conducting wire.

[0042] 8, in a capsule endoscope according to one embodiment of the present invention, a thermally conductive plate 7 is provided between the antenna arm 4011 and the image acquisition module 2 and circuit processing module 3. The antenna arm 4011 is connected to the image acquisition module 2 and circuit processing module 3 via the thermally conductive plate 7. The thermally conductive plate 7 increases the thermal path for transferring heat from the image acquisition module 2 and circuit processing module 3 to the antenna arm 4011, allowing the heat to be transferred to the antenna arm 4011 more efficiently.

[0043] The image acquisition module 2 includes an imaging module 201 and an illumination module 202. As shown in Fig. 9, the antenna arm 4011 is connected to the imaging module 201 and / or the illumination module 202 via a thermally conductive plate 7.

[0044] As described above, since heat is accumulated inside the capsule rather than being released to the outside through the housing, the battery life can be extended. In one embodiment of the present invention, as shown in Fig. 10, a thermally conductive plate 7 is provided between the battery 6 and the antenna arm 4011 of the capsule endoscope to supply heat to the battery. The antenna arm 4011 is connected to the battery 6 via the thermally conductive plate 7, so that the heat received by the antenna arm 4011 can be directly transferred to the battery 6 for use, thereby extending the battery life.

[0045] Furthermore, a heat storage material (9) is provided around the battery (6). As shown in Figure 10, heat from the antenna arm (4011) is introduced and stored in the heat storage material (9) via the heat conduction plate (7), allowing the heat to be slowly released during long-term examinations of the capsule endoscope, maintaining the battery at an effective operating temperature. The heat from the antenna arm (4011) is generated by the image acquisition module (2) and the circuit processing module (3) and is transferred via the heat conduction plate (7).

[0046] The material of the heat conductive plate 7 may include an insulating material with good thermal conductivity. In one embodiment, the heat conductive plate 7 is connected to the insulating heat conductive material 5 provided on the surface of the antenna arm 4011, and can be connected to the antenna arm 4011 via the insulating heat conductive material 5.

[0047] The heat conductive plate (7) can be made of a material with high thermal conductivity, such as a heat conductive adhesive, a heat conductive insulating sheet, or heat conductive silica gel.

[0048] Optionally, the number of heat conductive plates (7) connected to the battery (6) is two, three, four or more. Compared with a single heat conductive plate (7), multiple heat conductive plates (7) can conduct heat more quickly, and can quickly and directly transfer the heat received by the antenna arm (4011) to the battery (6), thereby facilitating the use of the battery and extending the use time of the battery.

[0049] Although capsule endoscopes are small in volume, their structures are very complex, making it difficult for heat generated during operation to quickly dissipate. Conducting heat to the capsule housing through the antenna can promote heat dissipation and improve thermal management. The capsule housing is typically made of materials such as PC (polycarbonate), PMMA (acrylic), and optical polyester resin. These materials are all resins with relatively good plasticity. The antenna arm (4011) can be integrally molded with the body case (1011) during manufacturing. That is, after manufacturing the antenna arm (4011), it is injection molded to form the body of the capsule endoscope. The circuit processing module (3) of the capsule endoscope and the corresponding connector (4014) on the inner wall of the body (1011) are respectively provided with connectors (4014), as shown in FIG. 11 . During the manufacturing and assembly process, the circuit processing module (3) is inserted into the housing and the two connectors (4014) are connected, thereby achieving an electrical connection that meets the radio frequency requirements of the capsule endoscope. The aforementioned connector (4014) preferably employs contacts that are easy to fabricate to ensure effective electrical connection.

[0050] To extend the flight time of a capsule endoscope, a wireless charging module is installed inside the capsule endoscope. During gastrointestinal examination, an external magnetic control device cooperates with the capsule endoscope to perform a controlled examination. Wireless charging is possible during this stage. After completing the stomach examination, the capsule endoscope enters the intestinal tract under the natural peristalsis of the gastrointestinal tract, performs the intestinal examination, and is finally expelled from the body. Although the capsule endoscope takes a long time to perform an intestinal examination, far longer than the time it spends in the stomach, wireless charging can only be performed during the stomach examination, and not within the intestinal tract. Therefore, the problem of insufficient flight time during an intestinal examination still exists. Furthermore, the wireless charging module generates heat during operation. Without heat management, the local temperature of the capsule endoscope housing may become too high, i.e., heat accumulation may cause discomfort to the patient.

[0051] In another embodiment, as shown in Figure 12, to solve the problem of localized high temperatures in the endoscope housing, a wireless charging module (10) is installed at the second end (103) of the housing and electrically connected to the circuit processing module (3). The wireless charging module (10) stores the obtained electrical energy in the battery (6) via the circuit processing module (3). A thermally conductive plate (7) is used to connect the antenna arm (4011) and the wireless charging module (10). Heat generated during operation of the wireless charging module (10) is quickly transferred to the antenna arm (4011) through the thermally conductive plate (7), realizing heat conduction and avoiding heat accumulation.

[0052] In another embodiment, to address the issue of insufficient battery life, as shown in FIG. 13 , a wireless charging module 10 is installed in the second end portion 103 of the housing and electrically connected to the circuit processing module 3. The wireless charging module 10 stores the electrical energy obtained from the wireless charging module 10 in the battery 6 via the circuit processing module 3. A heat storage material 9 is installed around the battery 6. A thermal conductive plate 7 connects the wireless charging module 10 to the heat storage material 9. Heat generated during operation of the wireless charging module 10 enters the heat storage material 9 via the thermal conductive plate 7. After the capsule endoscope enters the intestinal tract, it performs autonomous imaging for several hours. The heat storage material 9 slowly dissipates heat to activate the battery 6, maintaining the battery at a higher operating temperature, extending the battery's operating time, and avoiding the problem of heat accumulation causing discomfort to the patient.

[0053] The battery (6) is a silver oxide battery or a secondary battery that can be used with a silver oxide battery and wireless charging. Preferably, one silver oxide battery and one lithium battery are used, and power is typically supplied first from the lithium battery during gastric examinations. After the gastric examination is completed, the extracorporeal magnetic control device wirelessly charges the capsule endoscope, and after the lithium battery is fully charged, further intestinal examinations are performed. A wireless charging method based on a combination of one silver oxide battery and one lithium battery can provide a longer flight time than using two silver oxide batteries.

[0054] As shown in FIG. 1, the capsule endoscope of the present invention includes a permanent magnet (8) connected to the housing. The permanent magnet (8) provides magnetism to the capsule endoscope and, in cooperation with the external magnetic control device, can adjust the position, posture, and direction of the capsule endoscope. Optionally, a second permanent magnet (not shown) is provided within the second housing end (103). The second permanent magnet is cylindrical or spherical, and preferably has an elliptical spherical shape concentric with the second housing end (103). The elliptical spherical permanent magnet can be closely attached to the inner wall of the second housing end (103). The permanent magnet (8) is adjacent to the first housing end (102), and the second permanent magnet is adjacent to the second housing end (103). The two permanent magnets can balance the weight of the capsule endoscope and, in cooperation with the external magnetic control device, generate two magnetic moments that can accurately adjust the position, posture, and direction of the capsule endoscope.

[0055] The present invention achieves effective thermal management by quickly conducting heat generated by the image acquisition module and / or the circuit processing module, etc. to the antenna arm, distributing the heat evenly throughout the antenna arm and reducing localized heat accumulation, or by using a heat storage material to store excess heat near the battery and slowly release it, thereby optimizing the battery's discharge capacity and avoiding patient discomfort caused by excessive temperatures.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can appreciate that the present invention may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. [Explanation of symbols]

[0057] 1. Housing 101 Main body 1011 Main body case 102 housing first end 103 housing second end 2. Image Acquisition Module 201 Imaging module 202 Lighting Module 3 Circuit Processing Module 401 Antenna 4011 Antenna arm 4012 Bottom Antenna 4013 Power supply port 4014 Connector 5. Insulating and thermally conductive materials 6 batteries 7. Heat conduction plate 8. Permanent magnets 9 Heat storage material 10 Wireless Charging Module 1401 Heat insulation material layer

Claims

1. a housing including a body portion, a housing first end, and a housing second end; an image acquisition module disposed within the first end of the housing; a circuit processing module provided in the main body; an information transmission module including an antenna; the antenna includes an antenna arm fixed to an inner wall of the main body or to both the inner wall of the main body and the inner wall of the housing second end; the antenna arm is connected to the image acquisition module and / or the circuit processing module; the antenna arm is attached to an inner wall surface of the main body portion, or to both the inner wall surface of the main body portion and the inner wall surface of the housing second end portion, and has a protruding structure; a surface of the antenna arm is coated with an insulating and heat-conductive material; an insulating and thermally conductive material is applied to an inner wall surface of the main body portion that is not covered by the antenna arm, or to a portion of the inner wall surface of the main body portion and an inner wall surface of the second end portion of the housing; After the insulating and thermally conductive material is applied, the inner surface of the main body or the inner surfaces of the main body and the second end of the housing have a smooth structure with a uniform height and no protrusions. A capsule endoscope characterized by:

2. The capsule endoscope according to claim 1, wherein the antenna arm is connected to the image acquisition module and / or the circuit processing module via a heat conduction plate.

3. The capsule endoscope described in claim 1, characterized in that the capsule endoscope further includes a battery, and the antenna arm is connected to the battery via a heat conduction plate.

4. 2. The capsule endoscope according to claim 1, wherein a heat-insulating material layer is provided between the antenna arm and the housing.

5. A capsule endoscope as described in claim 1, characterized in that a heat conductive plate is connected to the antenna arm, and the heat conductive plate is placed on the surface of the insulating heat conductive material.

6. Further comprising a wireless charging module and a battery, the wireless charging module is disposed within the second end of the housing and is electrically connected to the circuit processing module; charging the battery by the circuit processing module; 6. The capsule endoscope according to claim 1, further comprising a heat conduction plate connecting the antenna arm and the wireless charging module.

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