WO2023125872A1 - Capsule endoscope - Google Patents

Abstract

A capsule endoscope. The capsule endoscope comprises: a shell (1), the shell (1) being made of a medical polymer material; a camera module (8) and an illumination module (7), which are arranged in an accommodating space defined by the shell (1); a battery module (5) arranged in the accommodating space defined by the shell (1); and an infrared reflective film (3), the infrared reflective film (3) being arranged in at least part of a region of an inner surface and/or an outer surface of the shell (1). The capsule endoscope can reduce the heat of a battery that is transferred outward and the heat convection from the battery to the shell (1), thereby improving the operating equilibrium temperature of the battery and extending the service life thereof.

Description

capsule endoscopy technical field

The invention relates to the field of medical instruments, in particular to a capsule endoscope.

Background technique

The battery life of the capsule endoscope in the working state is the key to restricting its complete detection in the digestive tract. The capsule endoscope is limited by its physical size, and the silver oxide or lithium battery used inside is difficult to provide the power of the capsule endoscope during a complete inspection of the digestive tract (a complete inspection, the battery power is not less than 12 hours). How to increase the total battery power, extend the inspection time of the capsule endoscope in the body, and complete the complete inspection of the entire digestive tract at one time has become an urgent problem to be solved.

Patent document US20020165592A1 discloses an image sensor with an energy receiving unit configured to receive electromagnetic energy and convert the received electromagnetic energy into electrical energy for powering at least one electronic component of the image sensor, extending Battery life. Patent document JP2009125100A discloses a wireless power supply system, which acquires internal information of the subject from the outside of the subject via a power transmission coil, and wirelessly supplies power through the driver of the AC coil covered on the subject's clothes. The traditional technology mainly uses wireless power supply to solve the problem of short working time of the capsule endoscope in the body. However, the way of wireless power supply using body fluid to conduct electricity has potential safety hazards. At the same time, the wireless power supply system has problems such as high cost, low efficiency, and time-consuming. .

Contents of the invention

In order to solve the related problems in the prior art, the present invention provides the following technical solutions.

A capsule endoscope comprising:

The shell, the shell is made of medical polymer material;

The camera module and the lighting module are arranged in the accommodating space defined by the housing;

The battery module is arranged in the accommodation space defined by the casing;

An infrared reflective film, the infrared reflective film is arranged on at least a part of the inner surface and/or the outer surface of the casing.

Wherein, optionally, the capsule endoscope also includes a magnet and a PCB board (Printed Circuit Board, printed circuit board), both of which are arranged in the accommodating space defined by the casing.

Wherein, optionally, the infrared reflective film is arranged on the entire area of the inner surface and/or the outer surface of the housing.

Setting the infrared reflective film can reflect the heat generated by the heating elements such as the battery module and camera module inside the capsule back to the inside of the capsule, reduce the outward transmission of heat, increase the working balance temperature of the battery, and increase the service time and working life. The housing has a simple structure and does not need to add other additional power supply devices, which has the advantage of low cost.

Wherein, preferably, the thickness of the infrared reflective film of the present invention is 0.01-120 μm.

Preferably, the infrared reflective film of the present invention has a thickness of 0.01-110 μm, more preferably 0.01-100 μm, further preferably 0.01-90 μm, and still more preferably 0.01-80 μm. Optionally, the infrared reflective film of the present invention has a thickness of 0.1-80 μm.

Among them, preferably, the refractive index of the infrared reflective film of the present invention is 1.2-3.1.

Preferably, the refractive index of the infrared reflective film is 1.3-2.9, more preferably 1.5-2.7, even more preferably 1.7-2.1.

Wherein, preferably, the infrared reflective film of the present invention may be a one-layer or multi-layer structure. Preferably, the infrared reflective film of the present invention may have a two-layer or three-layer structure.

Wherein, optionally, the number of layers of the infrared reflection film on the inner surface and/or the outer surface of the casing of the present invention is the same. Optionally, the number of layers of the infrared reflection film on the inner surface and/or the outer surface of the casing of the present invention is different.

When using a multi-layer reflective film, preferably, the thickness of each reflective film is the same, the reflected light vector and vibration direction on each interface are the same, the composite amplitude increases with the increase of the number of film layers, and the reflectivity increases.

Optionally, the refractive index of each layer of the reflective film in the multilayer reflective film is the same or different.

In one manner, optionally, each layer of reflective film has a different thickness.

The infrared reflective film of the present invention includes at least one of metal, metal compound, non-metal compound and resin.

Optionally, the infrared reflective film of the present invention includes nitride.

Optionally, the infrared reflective film of the present invention includes a combination of non-metal nitrides and metal oxides.

Optionally, the infrared reflective film of the present invention includes a combination of metals and metal oxides.

Optionally, the infrared reflective film of the present invention includes a mixed material of chromium trioxide (Cr ₂ O ₃ ) mixed with aluminum (Al) or titanium (Ti).

Optionally, the infrared reflective film of the present invention may be an insulating material.

The casing of the capsule endoscope of the present invention includes a casing main body and a transparent cover.

Wherein, preferably, the infrared reflective films on the inner surface and/or outer surface of the casing body of the present invention, the inner surface and/or outer surface of the transparent cover are made of the same material or different materials.

Among them, preferably, the infrared reflective film on the inner surface and/or outer surface of the housing body of the present invention is one layer, two layers or three layers, and the infrared reflective film on the inner surface and/or outer surface of the transparent cover is one layer.

Optionally, the infrared reflective film on the inner surface and/or outer surface of the housing body of the present invention is a smooth structure or a wrinkled structure, wherein the wrinkled structure can be spliced by one or more substrates, and the substrates can be mutually connected or not connected.

Optionally, the shape of the infrared reflective film of the present invention may be stepped, and the stepped shape may be formed by laminating one or more substrates.

Optionally, the infrared reflective film on the inner surface and/or outer surface of the casing body of the present invention is an infrared reflective film with uniform thickness.

Optionally, the infrared reflective film on the inner surface and/or outer surface of the casing body of the present invention is an infrared reflective film with non-uniform thickness. Preferably, the thickness of the infrared reflective film on the inner surface of the shell main body at the side of the ellipsoidal closed end is greater than the thickness of the infrared reflective film on the inner surface of the shell main body near the camera module and the lighting module. The change of the thickness of the infrared reflective film of the present invention from small to large can be linear, proportional or stepped.

Among them, preferably, the infrared reflective film on the inner surface and/or outer surface of the housing main body of the present invention includes a first infrared reflective film and a second infrared reflective film, and the first infrared reflective film is located between the inner surface of the housing main body and the second infrared reflective film. between.

Optionally, the first infrared reflective film and the second infrared reflective film cover the entire area of the inner surface and/or the outer surface of the housing body.

Optionally, the first infrared reflective film covers the entire area of the inner surface and/or outer surface of the shell body, and the second infrared reflective film covers the inner surface area of the cylindrical part of the shell body, and does not cover the side of the ellipsoidal closed end of the shell body inner surface area.

Optionally, the first infrared reflective film covers the entire area of the inner surface and/or outer surface of the shell body, and the second infrared reflective film covers the inner surface and/or outer surface area of the cylindrical part of the shell body, and does not cover the inner surface of the transparent cover. surface and/or outer surface area.

Preferably, the first infrared reflective film is metal, metal compound, non-metal compound or resin; the second infrared reflective film is metal compound, non-metal compound or resin.

Preferably, the refractive index of the first infrared reflective film is 2-3.1, and the refractive index of the second infrared reflective film is 1.2-2.

Preferably, the thickness of the first infrared reflective film is 1-50 μm, and the thickness of the second infrared reflective film is 1-50 μm.

In the present invention, the infrared reflective film provides electromagnetic reflection in at least a portion of the infrared reflective region of the electromagnetic spectrum. The infrared reflective film can be any suitable material. Examples of suitable materials for the infrared reflective film include simple metals and their alloys, metal compounds, non-metal compounds, resins and/or mixtures thereof. Metal compounds can be metal oxides, metal nitrides, metal oxynitrides, and non-metal compounds can be non-metal oxides.

Suitable materials for infrared reflective coatings are metal elements including titanium (Ti), silver (Ag), platinum (Pt), gold (Au), copper (Cu), chromium (Cr), aluminum (Al), palladium (Pd), nickel (Ni), niobium (Nb), antimony (Sb), barium (Ba), gallium (Ga), germanium (Ge), hafnium (Hf), indium (In), lanthanum (La), magnesium One or more of (Mg), selenium (Se), silicon (Si), tantalum (Ta), titanium (Ti), vanadium (V), yttrium (Y), zinc (Zn), tin (Sn), Copper, silver or gold are preferred.

Suitable materials for infrared reflective coatings are metal compounds including titanium nitride, titanium carbonitride, titanium oxynitride, titanium oxide, zirconium oxide, titanium dioxide, aluminum oxide, lanthanum fluoride, magnesium fluoride, aluminum hexafluoride One or more of sodium, cerium oxide, cobalt oxide, indium tin oxide, tungsten oxide, tin antimony oxide, preferably titanium nitride, tin antimony oxide, titanium oxynitride, titanium oxide, titanium dioxide or aluminum oxide, more Preferred are titanium dioxide or antimony tin oxide.

Suitable materials for the infrared reflective film are non-metallic compounds, including one or more of silicon dioxide, silicon nitride, copper phosphonate, and thiol compounds, preferably silicon dioxide.

Suitable materials for the infrared reflective layer substrate are resins including polyvinyl acetal resins, polycarbonate, polymethyl methacrylate, styrene-acrylonitrile, polystyrene, cyclic olefin copolymers, bile One or more of sterol type liquid crystal polymer, polyurethane and polyacrylate, phosphoric acid (meth)acrylate, and fluorine (meth)acrylate.

The material used for the shell of the capsule endoscope is a common medical polymer material, which can be hydroxyethyl methacrylate, polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene, polymethyl methacrylate, polyparaffin Ethylene phthalate and/or polyurethane.

Preferably, the infrared reflective film on the inner surface of the transparent cover and the outer surface of the transparent cover of the present invention is a transparent material with sufficient light transmittance. The transparent infrared reflective film is preferably a metal oxide or non-metal oxide material. The visible light transmittance of the transparent infrared reflective film is ≥80%, and the infrared reflectivity is ≥80%.

Preferably, the material of the transparent infrared reflective film of the present invention is indium tin oxide (ITO).

Preferably, the infrared reflective film on the inner surface of the casing body and the outer surface of the casing body in the present invention includes a transparent infrared reflective film.

Preferably, the transparent infrared reflective film of the present invention is a mixed material of metal oxide and resin.

Preferably, the transparent infrared reflective film of the present invention is silicide.

Preferably, the transparent infrared reflective film of the present invention is zirconium dioxide (ZrO ₂ ), titanium dioxide (TiO ₂ ), niobium monoxide (NbO), ITO, indium oxide (In ₂ O ₃ ), tin oxide (SnO ₂ ) or A hybrid material in which zinc oxide (ZnO) nanoparticles are mixed with resin.

Preferably, the transparent infrared reflective film of the present invention is a mixed material of ZrO ₂ , TiO ₂ , NbO, ITO, In ₂ O ₃ , SnO ₂ or ZnO nanoparticles mixed with polyacrylate.

Preferably, the transparent infrared reflective film of the present invention is a mixed material of SnO ₂ , ITO or antimony tin oxide (ATO) nanoparticles mixed with resin.

Preferably, the transparent infrared reflective film of the present invention is a mixed material of SnO ₂ , ITO or ATO nanoparticles and polyacrylate.

The present invention also provides a capsule endoscope, comprising

a housing, the housing comprising a housing body and a transparent cover;

The camera module and the lighting module are arranged in the accommodating space defined by the housing;

The battery module is arranged in the accommodation space defined by the casing;

An antenna module, the antenna module includes a metal coating disposed on the inner surface of the casing main body.

Preferably, the antenna module further includes an antenna circuit processing module and a connector matched therewith, and the metal coating is connected to the circuit processing module through the connector.

Preferably, the metal coatings of the present invention are transition metals.

Preferably, the metallic coating of the present invention is titanium.

Preferably, the present invention covers the surface of the metal coating with an insulating material layer.

Preferably, the insulating material layer on the surface of the metal coating of the present invention is an insulating material layer with infrared reflection function.

Preferably, the insulating material on the surface of the metal coating of the present invention is a non-metal oxide.

Preferably, the insulating material of the metal coating surface of the present invention is silicon dioxide.

Preferably, the connectors of the present invention are contacts.

Preferably, the metal coating of the present invention is connected to the antenna circuit processing module through contacts.

Optionally, the metal coating of the present invention can be etched with a helical or dendritic pattern.

Preferably, the inner surface of the transparent cover, the outer surface of the transparent cover, and/or the outer surface of the housing main body are coated with the transparent infrared reflective film of the present invention.

For the capsule endoscope of the present invention, preferably, the outer surface of the transparent cover and/or the outer surface of the shell main body includes a lubricating coating. Preferably, the lubricating coating is provided on the outermost layer of the transparent cover and the housing main body. Preferably, the lubricating coating is covered on the infrared reflective film.

The lubricating coating of the present invention can improve the smoothness of the infrared reflective film, and the lubricating coating is coated on the outer surface of the capsule endoscope transparent cover and/or the outer surface of the shell main body in solid form, and the lubricating coating meets water It is in the form of a fluid, which can protect the user from being scratched when swallowing, and help the user to swallow the capsule more smoothly, especially the capsule equipped with an infrared reflective film.

The lubricious coating of the present invention is an optically clear coating. The material of the lubricating coating is a hydrophilic lubricating coating, and the lubricating coating can be hydroxyethyl methacrylate, polyethylene glycol diacrylate, hydroxypropyl methacrylate, vinyl acetate, acrylic acid, ethylene glycol alcohol, maleic acid, vinylpyrrolidone, dimethylacrylamide and/or acrylamide.

The preparation method of coatings such as the infrared reflective film and/or lubricating coating of the present invention can optionally be prepared by conventional methods. Examples of the method include conventional chemical vapor deposition (Chemical Vapor Deposition, CVD), physical vapor deposition (Physical Vapor Deposition, PVD), coating and the like. Physical vapor deposition includes sputtering deposition process, electron beam evaporation deposition process, thermal evaporation deposition process, laser pulse deposition process, and vacuum evaporation process. Chemical vapor deposition methods include plasma chemical vapor deposition.

Sputtering deposition process can be DC (direct current) sputtering mode, AC (AC) sputtering mode, high frequency sputtering mode, magnetron sputtering mode, preferably DC magnetron sputtering method and AC magnetron sputtering method .

The metal element is preferably prepared by PVD method, and the metal compound or metal oxide is preferably prepared by CVD method.

The material of the target and the composition of the sputtering gas are selected according to the type of film to be formed. In addition, the sputtering conditions (pressure, temperature, etc.) can be appropriately determined according to the type, thickness, etc. of the film to be formed. The total pressure of the sputtering gas may be a pressure at which the glow discharge stably proceeds.

A capsule endoscope according to the present invention, comprising:

The shell, the shell is made of medical polymer material;

The camera module and the lighting module are arranged in the accommodating space defined by the housing;

The battery module is arranged in the accommodation space defined by the casing;

Wherein, preferably, the accommodating space is in a negative pressure state.

Optionally, the accommodating space is in a vacuum state.

The capsule endoscope of the present invention can be assembled under vacuum or low pressure. At this time, the air inside the capsule is reduced, thereby reducing heat conduction. After assembly, the inside of the capsule is in a vacuum or negative pressure state, and radiation heat dissipation becomes an important heat dissipation method, which can make the capsule endoscope The thermal insulation effect of the invented infrared reflective film is further increased.

According to the capsule endoscope of the present invention, the external transmission of heat can be reduced, the working equilibrium temperature of the battery can be increased, and the working life of the battery can be extended, so that the capsule endoscope can smoothly complete a high-quality comprehensive detection in the entire digestive tract. The antenna module of the present invention includes the technical solution of the metal coating disposed on the inner surface and/or outer surface of the housing body, which further improves the signal receiving and transmitting effects of the antenna on the basis of increasing the working equilibrium temperature of the battery.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a schematic structural diagram of a capsule endoscope according to Embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of a capsule endoscope according to Embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of a capsule endoscope according to Embodiment 3 of the present invention.

Fig. 4 is a schematic structural diagram of a capsule endoscope according to Embodiment 4 of the present invention.

Fig. 5 is a schematic structural diagram of a capsule endoscope according to Embodiment 5 of the present invention.

Among them, 1-shell, 1-1-shell main body, 1-2-transparent cover, 2-antenna circuit processing module, 2-1-contact, 3-infrared reflective film, 3-1-titanium metal coating, 3 -2-first coating material, 3-3-second coating material, 4-PCB board, 5-battery module, 6-lubricating coating, 7-lighting module, 8-camera module, 9-magnet, 10 - layer of insulating material.

Detailed ways

In order to have a clearer understanding of the above objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

Spatial or directional terms, such as "left", "right", "inner", "outer", "upper", "lower", etc., relate to the present invention as shown in the accompanying drawings. However, the invention may assume various alternative orientations and, therefore, these terms should not be considered limiting.

All numbers used in the specification and claims are to be understood as being modified in all instances by the term "about". "About" refers to a range of ±10% of the stated value.

All ranges disclosed herein include the starting and ending range values and any and all subranges subsumed therein.

With respect to coatings or films described herein, the term "covering" means being further from the substrate layer on which the coating or film in question is located. For example, a second layer "on" a first layer means that the second layer is further from the base layer than the first layer. The second layer may be in direct contact with the first layer. Alternatively, there may be one or more other layers between the first layer and the second layer.

The term "film" refers to a region of chemically distinct and/or uniform composition. A "layer" includes one or more "films". A "coating" includes one or more "layers".

The term "metal" includes metal elements and metal alloys.

The term "infrared" refers to electromagnetic radiation having a wavelength in the range greater than 780 nm to 100,000 nm.

The term "reflectivity" refers to the percentage of radiant energy reflected by an object to the total radiant energy.

The term "refractive index" refers to the ratio of the speed of light in a vacuum to the speed of light in that medium.

"At least" means "greater than or equal to". "Not greater than" means "less than or equal to".

Any amounts mentioned are "percentages by weight" unless otherwise stated.

Thickness values, unless indicated to the contrary, are geometric thickness values.

Discussions of the invention may refer to certain features as "particularly" or "preferably" within certain limits (e.g., "preferred", "more preferred", or "even more preferred"). It is to be understood that the invention is not limited to these specific or preferred limitations, but encompasses the full scope of the disclosure.

The present invention encompasses the various aspects of the invention in any combination. Various aspects of the invention are shown in the various drawings. The thickness, size and ratio of each coating and element in the drawings of the present invention are only for illustration, and do not limit the actual thickness, size and ratio. It should be understood that this is done for ease of illustration and discussion only. In the practice of the invention, one or more aspects of the invention shown in one figure may be combined with one or more aspects of the invention shown in one or more other figures.

In the present invention, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance; the term "plurality" means two or more. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The following examples specifically illustrate the present invention, but the present invention is not limited to these examples.

Example 1

As shown in Figure 1, the present invention provides a capsule endoscope, comprising: a housing 1, the housing 1 is made of a medical polymer material, the medical polymer material may be polyethylene; a camera module 8 and an illumination module 7. Set in the accommodation space defined by the housing 1; the battery module 5 is disposed in the accommodation space defined by the housing 1; the PCB board 4 and the magnet 9 are both disposed in the accommodation space defined by the housing 1 ;Antenna module, including titanium metal coating 3-1, antenna circuit processing module 2 and contacts 2-1, titanium metal coating 3-1 is arranged on the inner surface of the shell main body 1-1, with a uniform thickness of 35 μm on the shell main body 1-1 The inner surface is coated with a layer, and the part of the transparent cover 1-2 is not covered with the titanium metal coating 3-1. The titanium metal coating 3-1 is coated with an insulating material layer 10, and the insulating material layer 10 may be silicon dioxide, and the position of the contact 2-1 is vacated on the insulating material layer 10, and the titanium metal coating 3-1 passes through the contact 2-1 is connected to the antenna circuit processing module 2. The coating method adopts CVD method. After testing, the number of images taken by the capsule endoscope coated with the infrared reflective film 3 has increased by 27% compared with the number of images taken by the conventional capsule endoscope.

Example 2

As shown in Figure 2, the present invention provides a capsule endoscope, comprising: a housing 1, the housing 1 is made of a medical polymer material, the medical polymer material is hydroxyethyl methacrylate; a camera module 8 and the lighting module 7 are arranged in the accommodating space defined by the casing 1; the battery module 5 is arranged in the accommodating space defined by the casing 1; placed in the space; the infrared reflective film 3 is coated on the inner surface of the shell 1 with a silicon dioxide material, and is coated with a layer on the inner surface of the shell main body 1-1 and the inner surface of the transparent cover 1-2 with a uniform thickness of 15 μm. The coating method adopts CVD method. After testing, the number of images taken by the capsule endoscope coated with the infrared reflective film 3 is increased by 29% compared with the number of images taken by the conventional capsule endoscope.

Example 3

As shown in Figure 3, the present invention provides a capsule endoscope, comprising: a housing 1, the housing 1 is made of a medical polymer material, the medical polymer material may be polyethylene; a camera module 8 and an illumination module 7. Set in the accommodation space defined by the housing 1; the battery module 5 is disposed in the accommodation space defined by the housing 1; the PCB board 4 and the magnet 9 are both disposed in the accommodation space defined by the housing 1 Infrared reflective film 3, the infrared reflective film 3 is arranged on the inner surface of the shell 1, wherein the infrared reflective film 3 is coated with two different coating materials, the first coating is used on the inner surface of the shell main body 1-1 Coating material 3-2, the first coating material is silver. A second coating material 3-3 is used on the inner surface of the transparent cover 1-2, and the second coating material is tin antimony oxide. The transmittance of antimony tin oxide in the infrared region gradually decreases from 750nm until the transmittance is close to 0 at 2400nm. The coating thickness of the first coating material 3-2 is stacked and increased in steps from the shell main body 1-1 to the side of the ellipsoidal closed end away from the transparent cover 1-2, the thinnest part is about 0.5 μm, and the middle thickness The thickest part is about 50 μm, and the thickest part is about 75 μm. The silver film is coated with an insulating material layer 10 . Wherein, the insulating material layer 10 is formed by coating silicon dioxide material. A lubricating coating 6 with a thickness of 10 μm is evenly coated on the outer surface of the shell 1, and the lubricating coating 6 is made of hydroxyethyl methacrylate. After testing, the number of images taken by the capsule endoscope coated with the infrared reflective film 3 is 33% higher than that taken by the conventional capsule endoscope.

Example 4

As shown in Figure 4, the present invention provides a capsule endoscope, comprising: a housing 1, the housing 1 is made of a medical polymer material, the medical polymer material may be polyethylene; a camera module 8 and an illumination module 7. Set in the accommodation space defined by the housing 1; the battery module 5 is disposed in the accommodation space defined by the housing 1; the PCB board 4 and the magnet 9 are both disposed in the accommodation space defined by the housing 1 ; Infrared reflective film 3, the infrared reflective film 3 is distributed on the inner surface of the shell body 1-1 in the form of folds, and the coating material is titanium dioxide. The wrinkles were prepared by ultrasonically cleaning the polyethylene resin substrate in deionized water and alcohol in sequence, then drying the substrate in an oven at low temperature, and finally depositing titanium dioxide on the substrate. The substrate can be spliced, and titanium dioxide is deposited on the substrate in segments, and the prepared substrate with titanium dioxide can be split or spliced according to the capsule size and bending angle, and the substrates can be interconnected or non-connected . The thickness of the infrared reflective film was uniform, about 27 μm. The prepared substrate is fixed on the inner surface of the casing 1 . The titanium dioxide film is coated with a silicon dioxide insulating material layer 10 . A lubricating coating 6 with a thickness of 10 μm is evenly coated on the outer surface of the shell 1, and the lubricating coating 6 is made of hydroxyethyl methacrylate. After testing, the number of images taken by the capsule endoscope coated with the infrared reflective film 3 has increased by 34% compared with the number of images taken by the conventional capsule endoscope.

Example 5

As shown in Figure 5, the present invention provides a capsule endoscope, comprising: a casing 1, the casing 1 is made of a medical polymer material, and the medical polymer material may be polyethylene; a camera module 8 and an illumination module 7. Set in the accommodation space defined by the housing 1; the battery module 5 is disposed in the accommodation space defined by the housing 1; the PCB board 4 and the magnet 9 are both disposed in the accommodation space defined by the housing 1 Infrared reflective film 3, the infrared reflective film 3 is arranged on the outer surface of the shell 1, and a layer is coated on the outer surface of the shell main body 1-1 and the outer surface of the transparent cover 1-2 with a uniform thickness of about 17 μm. The reflective film 3 is made of a mixed material of transparent polyacrylate and ZnO, and the weight ratio of transparent polyacrylate to ZnO is 10:1. A lubricating coating 6 with a thickness of 10 μm is evenly coated on the infrared reflective film 3, and the lubricating coating 6 is made of hydroxyethyl methacrylate. After testing, the number of images taken by the capsule endoscope coated with the infrared reflective film 3 is 32% higher than that of the conventional capsule endoscope.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A capsule endoscope, characterized in that it comprises:

   The shell, the shell is made of medical polymer material;

   The camera module and the lighting module are arranged in the accommodating space defined by the housing;

   The battery module is arranged in the accommodation space defined by the casing;

   An infrared reflective film, the infrared reflective film is arranged on at least a part of the inner surface and/or the outer surface of the casing.
2. The capsule endoscope according to claim 1, wherein the thickness of the infrared reflective film is 0.01-120 μm.
3. The capsule endoscope according to claim 1, further comprising a lubricating coating on the outer surface of the housing.
4. The capsule endoscope according to claim 1, characterized in that: the housing comprises a housing body and a transparent cover, wherein the inner surface of the housing body, the outer surface of the housing body, the inner surface of the transparent cover and/or the infrared reflective film on the outer surface be the same material or different materials.
5. The capsule endoscope according to claim 1, wherein the shape of the infrared reflection film can be smooth or wrinkled.
6. A capsule endoscope, characterized in that it comprises:

   a housing, the housing comprising a housing body and a transparent cover;

   The camera module and the lighting module are arranged in the accommodating space defined by the housing;

   The battery module is arranged in the accommodation space defined by the casing;

   An antenna module, the antenna module includes a metal coating disposed on the inner surface of the casing main body.
7. The capsule endoscope according to claim 6, characterized in that: the surface of the metal coating is covered with an insulating material layer.
8. The capsule endoscope according to claim 6, wherein the metal coating is connected to the antenna circuit processing module through a contact.
9. The capsule endoscope according to claim 6, characterized in that: the inner surface of the transparent cover, the outer surface of the transparent cover, the inner surface of the shell main body and/or the outer surface of the shell main body are coated with an infrared reflection film.
10. A capsule endoscope comprising:

    The shell, the shell is made of medical polymer material;

    The camera module and the lighting module are arranged in the accommodating space defined by the housing;

    The battery module is arranged in the accommodation space defined by the casing;

    Wherein, the accommodating space is in a negative pressure state.

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