Endoscope system and attachment / detachment system

Abstract

An endoscope system (10) including an insertion part in which an image sensor is disposed at a distal end, the endoscope system (10) comprising: a first unit (11) having a first housing (11a), a magnet (21) disposed in the first housing, and a cover (11b) disposed in the first housing so as to cover the magnet; and second units (12, 13) having a second housing (12a) and a magnetic body (22) disposed in the second housing, the first unit and the second unit being configured to be detachable by the magnet and the magnetic body.

Description

Endoscope System and Detachable System

[0001] This invention relates to an endoscope system composed of a plurality of constituent units, and more particularly to an endoscope system provided with a detachable system for attaching and detaching at least two basic constituent units to each other, and a detachable system applied to this endoscope system. This application claims priority based on Japanese Patent Application No. 2024-198185 filed in Japan on November 13, 2024, and incorporates its content herein by reference.

[0002] Conventionally, endoscope systems for observing, inspecting, treating, or repairing the inside and gaps of body cavities, structures, etc. are widely used in, for example, the medical field and industrial field.

[0003] Generally, a conventional endoscope system includes a scope unit composed of an insertion unit in the shape of an elongated tube with an image sensor or the like arranged at its tip and inserted into the inside of a body cavity or structure, and an operation unit connected to the proximal end of the insertion unit or the like or a control device described later and having various operation members, and a main body unit including a control device for controlling the entire system, and a plurality of basic constituent units such as a display unit for displaying information acquired by an image sensor or the like or various setting information.

[0004] Further, in a conventional endoscope system, in addition to various external devices (such as dedicated or general-purpose portable terminal devices such as smartphones or tablet terminals) and various replacement accessories, a system including a storage case for storing these external devices and accessories, a portable storage box (carrying case) for storing the entire endoscope system, etc. is constructed and operated.

[0005] As the first basic form of a conventional endoscope system, there is a form in which all of the four basic constituent units are integrally formed. This first-form endoscope system has the advantage that the basic constituent units are complete as one device, so it is easy to handle, and it is mainly applied to relatively small devices.

[0006] Furthermore, a second basic form of a conventional endoscope system is one in which at least one of the four basic component units is formed in a manner that is separated from the other basic component units. In this second form of endoscope system, the separated at least one basic component unit is usually configured to be detachably attached to the other basic component units.

[0007] In this second type of endoscopic system, the basic component unit that is separated can continue to be used normally, whether it is separated from or connected to the other basic component units. Therefore, there is an advantage in that the system configuration can be appropriately changed depending on the shape of the object being observed.

[0008] In this second form of endoscopic system, it is desirable that the basic component units be easily and quickly attached and detached from each other, without the use of tools, depending on the usage situation.

[0009] Therefore, in conventional endoscope systems, various proposals have been made and put into practical use for attachment and detachment systems that attach and detach at least two basic component units to each other, such as in Japanese Patent Publication No. 2004-321243.

[0010] The endoscope system disclosed in Japanese Patent Publication No. 2004-321243, etc., for example, in the first embodiment, is configured by forming a convex shape that protrudes outward on the outer surface of one component unit, and forming a concave shape corresponding to the convex shape on the outer surface of the other component unit.

[0011] Furthermore, a configuration is disclosed in which the two basic structural units can be connected without tools by mechanically fitting the two parts (the convex and concave sections) together, and can also be separated without tools.

[0012] Furthermore, in the second embodiment of the aforementioned publication, a magnet is fixed in a convex shape on the outer surface of one component unit, projecting outward, and a concave portion corresponding to the magnet is formed on the outer surface of the other component unit, with the magnet placed inside this concave portion.

[0013] Furthermore, a configuration is disclosed in which, by fitting the two components (the convex magnet and the concave part) together, the attractive force between the two magnets can be used to connect the two component units without tools, and to separate them without tools.

[0014] Furthermore, in addition to the attachment / detachment system disclosed in Japanese Patent Publication No. 2004-321243 and others, various other configurations have been proposed for which multiple component units can be attached and detached from each other by, for example, fitting together the fitting parts and fitted parts provided on each component unit.

[0015] By appropriately applying a conventional attachment / detachment system with this configuration to an endoscope system, it is possible to easily attach and detach the basic component units to each other with simple operations without the need for tools or other equipment.

[0016] Furthermore, even with an endoscope system like the first embodiment described above, applying the attachment / detachment system described above offers the advantage of being able to connect and use various external devices to the integrated main unit.

[0017] Japanese Patent Publication No. 2004-321243

[0018] However, in the configuration of the conventional attachment / detachment system disclosed in Japanese Patent Publication No. 2004-321243 and others, the shape of each connection part formed on each component unit is complex in order to ensure sufficient connection strength. Furthermore, when connecting the component units to each other, the connection direction may be limited to a specific direction, resulting in problems such as complicated operation during connection operations.

[0019] The present invention aims to provide an endoscope system comprising multiple component units, which includes a detachable system for attaching and detaching at least two basic component units, that offers good operability by allowing easy attachment and detachment with simpler operations, maintains a more secure connection when connected, and contributes to improved detachment operability while ensuring the necessary strength while simplifying the shape of the connection part, as well as contributing to a reduction in manufacturing and product costs, and an endoscope system equipped with this detachable system.

[0020] To achieve the above objective, an endoscope system according to one aspect of the present invention is an endoscope system including an insertion section having an image sensor disposed at its tip, comprising: a first unit having a first housing, a magnet disposed in the first housing, and a cover disposed in the first housing so as to cover the magnet; and a second unit having a second housing and a magnetic material disposed in the second housing, wherein the first unit and the second unit are detachably connected by the magnet and the magnetic material.

[0021] One embodiment of the present invention is a detachable system between a first unit and a second unit constituting an endoscope system, comprising: a magnet disposed in a first housing included in the first unit; a cover disposed in the first housing and covering the magnet; and a magnetic material disposed in a second housing included in the second unit, wherein the first unit and the second unit are configured to be detachably attached by the magnet and the magnetic material.

[0022] According to the present invention, an endoscope system comprising a plurality of component units, and equipped with a detachable system for attaching and detaching at least two basic component units, can be provided that offers good operability, allowing for easy attachment and detachment with simpler operations, and that can maintain a more secure connection when connected, while also achieving simplification of the shape of the connection part while ensuring the necessary strength, thereby contributing to improved detachment operability and reducing manufacturing and product costs. The present invention also provides an endoscope system equipped with this detachable system.

[0023] Figure 1 shows an external perspective view illustrating the outline of an endoscope system according to one embodiment of the present invention, an exploded perspective view showing that at least two basic component units included in the endoscope system of Figure 1 can be separated, an enlarged cross-sectional view of a key part along the virtual plane indicated by arrow [3] in Figure 1, an enlarged cross-sectional view of a key part along the virtual plane indicated by arrow [4] in Figure 1, a schematic diagram showing a specific configuration example of a first modified example of one embodiment of the present invention, a schematic diagram showing a specific configuration example of a second modified example of one embodiment of the present invention, a schematic diagram showing a specific configuration example of a third modified example of one embodiment of the present invention, a schematic diagram showing a specific configuration example of a fourth modified example of one embodiment of the present invention, and one of the display units equipped with an angle adjustment mechanism in the endoscope system according to one embodiment of the present invention. A schematic perspective view conceptually showing an example configuration; an external view showing the half-open state of the display unit in an endoscope system to which the angle adjustment mechanism of Figure 9 is applied; an external view showing the fully open state of the display unit in an endoscope system to which the angle adjustment mechanism of Figure 9 is applied; an external view showing the state when the fully open display unit is inverted and connected in an endoscope system to which the angle adjustment mechanism of Figure 9 is applied; a schematic perspective view conceptually showing a seventh modified example of an endoscope system according to one embodiment of the present invention; an enlarged cross-sectional view of the main part showing a cross section along the line

[14] -

[14] in Figure 13; and an enlarged cross-sectional view of the main part showing a cross section along the line

[15] -

[15] in Figure 13.

[0024] The present invention will be described below with reference to the illustrated embodiments. The drawings used in the following description are schematic. Therefore, in these drawings, each component is shown at a size that is recognizable on the drawing. For this reason, the dimensional relationships and scales of each component may differ on the drawing. The present invention is not limited to the illustrated forms with respect to the quantity, shape, size ratio, relative positional relationships, etc., of each component shown in each drawing.

[0025] First, the schematic configuration of the endoscope system according to one embodiment of the present invention will be described below. Figure 1 is an external perspective view showing a schematic of the endoscope system according to one embodiment of the present invention. Figure 2 is an exploded perspective view showing that at least two basic component units included in the endoscope system of Figure 1 can be separated. In Figure 2, an example is shown in which the display unit and the main body unit are separated from the plurality of basic component units that constitute the endoscope system. Figure 3 is an enlarged cross-sectional view of the main part along the virtual plane indicated by arrow [3] in Figure 1. Figure 4 is an enlarged cross-sectional view of the main part along the virtual plane indicated by arrow [4] in Figure 1.

[0026] An endoscope system 10 according to one embodiment of the present invention is an endoscope device comprising at least four basic component units: a display unit 11, a main unit 12, an insertion unit 13, and an operation unit 14.

[0027] Here, each basic component unit (11, 12, 13, 14) is assumed to be electrically connected to each other using, for example, connectors (not shown) or wired or wireless connection means. Specifically, for example, the main unit 12 and the operation unit 14 are electrically connected via a connecting cable 14x.

[0028] In addition, a unit consisting of an insertion unit 13 and an operating unit 14, or a unit that includes an insertion unit as a function, such as the insertion unit alone, is sometimes referred to as a scope unit.

[0029] Furthermore, in this embodiment, a configuration in which the main body unit 12 and the insertion unit 13 are physically formed as a single unit is illustrated. In this case, the unit formed by integrating the main body unit 12 and the insertion unit 13 is referred to as the second unit in this embodiment. Such a second unit may be referred to as a mobile device.

[0030] The display unit 11 consists of an electronic circuit board (not shown) on which a display device 11d and a display control circuit (CPU (Central Processing Unit)) that drives and controls the display device 11d, or a GPU (Graphics Processing Unit) that performs image signal processing on acquired image data, etc., are mounted, and a housing 11a, which is a first enclosure that houses these components. In this embodiment, the display unit 11 is referred to as the first unit.

[0031] The display device 11d of the display unit 11 can be, for example, a liquid crystal display (LCD). The display device 11d displays image information acquired by an image sensor (not shown) included in the insertion unit 13, as well as various information related to the image information and various setting information of the endoscope system 10. The display device 11d also has a so-called touch panel operating device. Therefore, the display unit 11 also functions as an operating device.

[0032] The housing 11a is a first enclosure consisting of a flattened box shape. In this housing 11a, the surface on which the display screen (front) of the display device 11d is placed is called the first surface 11aa, and the surface on the back side of the display device 11d is called the second surface 11ab.

[0033] In this case, the first surface 11aa of the housing 11a is positioned to face forward when the endoscope system 10 is in use, that is, the display screen of the display device 11d is exposed to the front. In this state, the first surface 11aa of the housing 11a is the front of the display unit 11, and the second surface 11ab is the back of the display unit 11.

[0034] Multiple covers 11b, provided for shock absorption, are positioned at predetermined locations within the housing 11a. One cover 11b is positioned for each of the four corner regions of the housing 11a, covering each of them. The covers 11b are made of a non-magnetic metal member (e.g., aluminum) or a hard resin material. As a result, the covers 11b have resistance to external forces, protecting the corners of the housing 11a or its internal components (such as the display device 11d) located inside, as well as protecting the first magnet 21, which will be described later.

[0035] A first magnet 21, which is a magnetic material, is positioned in a predetermined location on the cover 11b. Here, the first magnet 21 is a magnetic material, and in this embodiment, for example, a permanent magnet is assumed. One first magnet 21 is positioned opposite each of the four corner regions on the second surface 11ab of the housing 11a. The first magnet 21 is then bonded and fixed to the cover 11b using a fixing member such as adhesive 23 (see Figure 3). With this configuration, the first magnet 21 is positioned between the second surface 11ab of the housing 11a (first housing) and the cover 11b. The fixing member may be a material such as high viscosity grease or screw lock.

[0036] In this case, the four first magnets 21 provided on the cover 11b are arranged with the same magnetic pole facing the same direction. Specifically, for example, each of the four first magnets 21 has its north pole facing the back side (the second unit side, which will be described later) (see Figure 3).

[0037] With this configuration, the cover 11b is positioned to cover the four corners of the housing 11a while simultaneously covering the outer surface of the first magnet 21. The back surface 11bx of the cover 11b is formed by a smooth plane (flat surface).

[0038] The first magnet 21 only needs to be placed in at least one of the four covers 11b. In this embodiment, an example configuration is shown in which the first magnet 21 is provided in each of the four covers 11b.

[0039] The main unit 12 is a control device composed of various electrical components and a second housing 12a that houses these electrical components (not shown).

[0040] The various electrical components included in the main unit 12 include, for example, a control board on which a control circuit (CPU) that controls the entire endoscope system 10 is mounted, an electronic circuit board on which signal processing circuits that perform predetermined signal processing based on various information including acquired image data are mounted, as well as electrical components such as a battery and a cooling fan. Note that these electrical components are not directly related to the present invention and are therefore not shown in the illustration.

[0041] The housing 12a is a second enclosure with a box shape. Here, when the endoscope system 10 is in use, the surface (front) of the housing 12a that faces the second surface 11ab of the display unit 11 is referred to as the first surface 12aa.

[0042] A cover 12b, provided for shock absorption, is positioned in a predetermined location on the housing 12a. One cover 12b is positioned for each corner, covering the two upper corner regions of the four corner regions of the housing 12a. Like the cover 11b, the cover 12b is made of a non-magnetic material such as a metal member (e.g., aluminum) or a hard material such as a resin member. As a result, the cover 12b has resistance to external forces, protecting the corners of the housing 12a or its internal components (electrical components, etc.) located inside, and also protecting the second magnet 22, which will be described later.

[0043] On the cover 12b, a second magnet 22 which is a magnetic body is disposed at a predetermined position. The second magnets 22 are respectively disposed at positions facing the first magnet 21 in the upper two corner regions among the four corner regions of the first surface 12aa of the housing 12a. And the second magnet 22 is adhesively fixed to the cover 12b using a fixing member such as an adhesive 23 (see FIG. 3). With such a configuration, the second magnet 22 is disposed between the first surface 12aa of the housing 12a (second housing) and the cover 12b.

[0044] In this case, the two second magnets 22 provided on the cover 12b are arranged such that the same poles face the same direction. Specifically, for example, each of the two second magnets 22 has a pole (S pole in this embodiment; see FIG. 3) different from the pole of the opposing surface of the first magnet 21 disposed at the opposing position (N pole in this embodiment; see FIG. 3) facing the front side, that is, the display unit 11 (first unit) side.

[0045] With such a configuration, the cover 12b is arranged to cover two corner regions of the housing 12a and at the same time cover the outer surfaces of the second magnets 22. And the front surface 12bx of the cover 12b is formed by a smooth plane (smooth surface).

[0046] Note that the second magnet 22 may be disposed on at least one of the two covers 12b. In this embodiment, a configuration example in which the second magnet 22 is provided on each of the two covers 12b is shown.

[0047] The insertion unit 13 includes an imaging unit such as an image sensor and an imaging optical system disposed at the tip, and is composed of an insertion part (not shown) having a flexible elongated tube shape as a whole so that it can be inserted into the inside of a structure or the like, and a housing 13a or the like which houses the insertion part in a wound form, for example.

[0048] The housing 13a has a box shape. Here, when the endoscope system 10 is in use, the opposing surface (front surface) of the housing 13a that faces the second surface 11ab of the display unit 11 is referred to as the first surface 13aa.

[0049] A cover 13b provided for shock absorption is disposed at a predetermined portion of the housing 13a. The covers 13b are arranged one by one according to each corner so as to cover each of the lower two corner regions among the four corner regions of the housing 13a. Similar to the covers 11b and 12b, the cover 13b is formed of a member using a hard material such as a non-magnetic metal member (e.g., aluminum, etc.) or a resin member. Thereby, the cover 13b has resistance when an external force is applied, protects the corners of the housing 13a disposed inside or its internal component members (insertion portions, etc.), and protects the second magnet 22 described later.

[0050] A second magnet 22, which is a magnetic body, is disposed at a predetermined portion of the cover 13b. The second magnets 22 are respectively arranged at positions facing the first magnet 21 in the lower two corner regions among the four corner regions of the first surface 13aa of the housing 13a. The second magnet 22 is adhesively fixed to the cover 13b using a fixing member such as an adhesive 23 (see FIG. 4). With such a configuration, the second magnet 22 is disposed between the first surface 13aa of the housing 13a (housing) and the cover 13b.

[0051] In this case, the two second magnets 22 provided on the cover 13b are arranged such that the same magnetic poles face the same direction. Specifically, for example, each of the two second magnets 22 has a magnetic pole (S pole in this embodiment; see FIG. 4) different from the magnetic pole of the opposing surface of the first magnet 21 arranged at the opposing position (N pole in this embodiment; see FIG. 4) facing the front side, that is, the display unit 11 (first unit) side.

[0052] With this configuration, the cover 13b is positioned to cover the two corner regions of the housing 13a while simultaneously covering the outer surface of the second magnet 22. The front surface 13bx of the cover 13b is formed by a smooth plane (flat surface).

[0053] The second magnet 22 only needs to be placed in at least one of the two covers 13b. In this embodiment, an example configuration is shown in which the second magnet 22 is provided in each of the two covers 13b.

[0054] The operation unit 14 is an operating device that has multiple operating members (joysticks, push buttons, etc.) for performing bending operations on the insertion part (not shown) and display operations on the display device 11d of the display unit 11 (for example, switching the display mode of the display image, as well as operations corresponding to menu displays). The operation unit 14 is electrically and mechanically connected to the main unit 12, for example, by cable connection using a connecting cable 14x.

[0055] The operating unit 14 is provided with a loop-shaped locking ring 14a, for example, near its upper end. This locking ring 14a can be suspended and locked to a hook portion 12c provided on one side of the main unit 12. This allows the operating unit 14 to be attached to the main unit 12 when not in use, and to be easily removed when in use.

[0056] In the endoscope system 10 of this embodiment, configured in this way, an attachable system is provided for attaching and detaching the first unit, the display unit 11, to the second unit, which consists of the main body unit 12 and the insertion unit 13. The operation of this attachable system is as follows.

[0057] In the endoscope system 10 of this embodiment, the display unit 11 (hereinafter referred to as the first unit (11)) is in a state where it is separated from the main unit 12 and the insertion unit 13 (hereinafter referred to as the second units (12, 13)) (as shown in Figure 2).

[0058] In this state, first, the second face (11ab) of the first unit (11) is positioned opposite the first face (12aa, 13aa) of the second unit (12, 13). Then, the first unit (11) is moved in a direction that brings it closer to the second unit (12, 13) (see reference numeral [F1] in Figure 2).

[0059] At this time, the vicinity of each placement position of the first magnet 21 on the first unit (11) side (the back side of the four corner regions) faces the vicinity of each placement position of the second magnet 22 on the second unit (12, 13) side (the front side of the four corner regions). Then, each of the first magnets 21 and each of the second magnets 22 are brought closer together so that they face each other.

[0060] In this case, when bringing the first unit (11) closer to the second unit (12, 13), it is not necessary to position the two units precisely; it is sufficient to position the two magnets (21, 22) so that their placement positions (corners of each unit) are close to each other.

[0061] As the first unit (11) approaches the second unit (12, 13), the two magnets (21, 22) eventually reach a position where their magnetic forces influence each other. Then, an attractive force (see symbol [F] in Figures 3 and 4) gradually acts between the two magnets (21, 22) in a direction of mutual attraction. Thus, each back surface 11bx of cover 11b approaches each front surface 12bx of cover 12b and each front surface 13bx of cover 13b, and eventually, the two (back surfaces 11bx and front surfaces 12bx, 13bx) come into contact. The first unit (11) is then connected to the second unit (12, 13) at a predetermined position by a predetermined magnetic holding force, and this connection is maintained (see the state shown in Figure 1).

[0062] Next, in the endoscope system 10 of this embodiment, which is connected as shown in Figure 1, the first unit (11) can be arbitrarily separated from the second units (12, 13) when desired.

[0063] In that case, the operator first applies a force to the first unit (11) in a direction that pulls it away from the second unit (12, 13) against the combined magnetic force of the magnets 21 and 22 (see the symbol [F2] in Figure 1). In this case, the direction in which the force is applied to pull the first unit (11) away does not need to be precise; it is sufficient to ensure that the positions of both magnets (21, 22) (the corners of each unit) are separated from each other.

[0064] Eventually, the first unit (11) is pulled away from the second unit (12, 13) against the combined magnetic force of magnets 21 and 22. As a result, the endoscope system 10 enters a separated state as shown in Figure 2.

[0065] As described above, according to the above embodiment, in the endoscope system 10, the display unit 11, which is the first unit, is configured to be detachably attached to the second unit, which consists of the main body unit 12 and the insertion unit 13, by the action of the magnetic force of magnets 21 and 22.

[0066] In this configuration, the arrangement of the second magnet 22 relative to the first magnet 21 determines the connection position of both units (11 and 12, 13). Therefore, with this configuration, the first unit (11) can be held in a predetermined position relative to the second units (12, 13).

[0067] At this time, the front surfaces 12bx of the two covers 12b and the front surfaces 13bx of the two covers 13b are in contact with the back surfaces 11bx of the four covers 11b. In this case, the contact surfaces (11bx, 12bx, 13bx) of each cover (11b, 12b, 13b) are all formed by smooth planes (flat surfaces).

[0068] Therefore, when attaching and detaching the two units (the first unit and the second unit), the connection and separation directions are not restricted to a specific direction, and attachment and detachment can be performed with easy operation.

[0069] In other words, by simply bringing the location where the first magnet 21 on the first unit (11) is located and the location where the second magnet 22 on the second unit (12, 13) is located into close proximity, the two units can be connected by the magnetic force of both magnets 21 and 22, and the first unit (11) can be held in a predetermined position relative to the second unit (12, 13).

[0070] In this case, the magnetic poles of each magnet 21 and 22 are aligned and positioned in a predetermined direction. Specifically, the first magnet 21 facing the back has its north pole on the back side, and the second magnet 22 facing the front has its south pole on the front side.

[0071] Therefore, with this configuration, the position of the first unit (11) in the vertical direction is not restricted relative to the second units (12, 13).

[0072] In other words, when the first unit (11) is connected to the second unit (12, 13), even if the first unit (11) is temporarily removed from the second unit (12, 13), rotated 180 degrees, and then the connection operation (bringing the magnets 21, 22 closer) is performed again, both units (11 and 12, 13) can be connected in the same way.

[0073] Furthermore, if an unintended external force (for example, an external force resulting from a collision with another object or a fall) is applied to the endoscope system 10, and that external force exceeds the sum of the magnetic forces of the four magnets 21 and 22 connecting the component units, the connection between the two units will be released and they will separate. This distributes the external force received by both units, reducing the external force transmitted directly to each component unit.

[0074] In this case, since the connection points (contact surfaces) of both units are formed with smooth surfaces, when an external force is applied and they separate, the smooth surfaces simply slide apart. Therefore, there is no need to worry about damage to the connection points or other components.

[0075] Furthermore, the first magnets 21 and 22 are positioned between each cover (11b, 12b, 13b) and each housing (housing 11a, 12a, 13a), with their outer surfaces covered by each cover. Since each cover is made of a non-magnetic hard material, it has impact resistance, and thus the outer surfaces of the first magnets 21 and 22 can be reliably protected from external forces.

[0076] Thus, according to this embodiment, the connection of the two basic component units is performed using the magnetic force of magnets, and since the magnets are positioned so that their outer surfaces are covered by a cover, there are no protruding parts at the connection point. Furthermore, since the connection points are formed so that they abut each other with smooth planes (flat surfaces), the direction of operation during connection and disconnection operations is not restricted, and attachment and detachment operations can be performed with simple operations. Therefore, this contributes to improving the operability of attachment and detachment operations.

[0077] Furthermore, at the connection point, the magnet is not exposed to the outside and its outer surface is protected by a cover, so external forces are not directly applied to the magnet, thereby suppressing damage to the connecting member that may occur due to external forces.

[0078] Furthermore, by simplifying the configuration of the connection points and reducing the number of parts, it is possible to reduce the assembly man-hours during the manufacturing process, as well as contribute to reducing manufacturing costs and product costs. In addition, it can contribute to reducing the weight of the endoscope system and each component unit.

[0079] Furthermore, if an unintended external force (for example, an external force caused by collision with another object or impact from a fall) is applied to the endoscope system, the connection point is designed to easily separate. This prevents damage to the connection point and distributes the received external force, reducing the force transmitted directly to each component unit. Therefore, it contributes to improving the impact resistance of the endoscope system.

[0080] [Modifications] In the above-described embodiment, an example configuration was shown in which the main body unit 12 and the insertion unit 13 are integrated into one structure. However, the configuration is not limited to this example. For example, the main body unit 12 and the insertion unit 13 may be formed separately, and each may be configured as a separate unit. In this configuration, it is conceivable that the main body unit 12 and the insertion unit 13 are connected using a predetermined mechanical coupling mechanism.

[0081] Furthermore, in the above-described embodiment, an example of a detachable system configuration was shown in which the display unit 11 is the first unit and the main body unit 12 and insertion unit 13 are the second unit, and the two (11 and 12, 13) are attached and detached. However, the system is not limited to such an example. For example, the main body unit 12 can be the first unit and the insertion unit 13 can be the second unit, and the detachable system can be configured in which the two (12, 13) are attached and detached.

[0082] In the above-described embodiment, the four first magnets 21 placed on the four covers 11b on the housing 11a side were shown to be arranged in each of the four corner regions of the housing 11a, but the configuration is not limited to this example. For example, the first magnets 21 only need to be placed in at least two of the four corner regions of the housing 11a. In this case, for example, one possible configuration is to place them in the two diagonal corner regions of the second surface 11ab of the housing 11a.

[0083] This configuration allows us to define the vertical direction when the first unit (11) is connected.

[0084] In the above-described embodiment, the first magnet 21 and the second magnet 22 are shown as being arranged in each cover (11b, 12b, 13b), but the configuration is not limited to this example. For example, the first magnet 21 and the second magnet 22 may be arranged in predetermined positions on each housing (11a, 12a, 13a).

[0085] Even with this configuration, it is essential that the first magnet 21 and the second magnet 22 are not exposed to the outside and are arranged so that their outer surfaces are covered by the respective covers (11b, 12b, 13b).

[0086] Furthermore, for example, in addition to the arrangement example shown in the above-described embodiment, the first magnet 21 may be arranged one at each of the four corner regions on the first surface 11aa side of the housing 11a.

[0087] In this configuration, when using the endoscope system 10, the first surface 11aa of the display unit 11 is facing forward and connected to the front of the second unit (12, 13) (the state of the above embodiment; see Figure 1).

[0088] On the other hand, when the endoscope system 10 is not in use (for example, when it is being carried), the display unit 11 can be connected to the front of the second unit (12, 13) with its first surface 11aa facing the rear. In this case, the display screen of the display device 11d of the first unit (11) will be positioned facing the rear. Even in this state, the first unit (11) can be connected and fixed to the front of the second unit (12, 13).

[0089] Therefore, in this configuration, the display screen of the display device 11d is not exposed to the outside, and the first unit (11) can be connected to the second unit (11, 12). Thus, for example, when the endoscope system 10 is not in use (when being carried), the display screen of the display device 11d can be protected by using this configuration.

[0090] In the above-described embodiment, each cover (11b, 12b, 13b) is shown to be formed using a hard material (non-magnetic material), but the invention is not limited to this example. For example, each cover (11b, 12b, 13b) may be made using an elastic soft material or the like. With such a configuration, each cover can absorb impact more effectively by elastically deforming itself, thereby effectively protecting the magnets placed inside the cover and the internal components of the housing.

[0091] In the above-described embodiment, a configuration example is shown in which the first magnet 21 is placed on the first unit (11) side and the second magnet 22 is placed on the second unit (12, 13) side, but the invention is not limited to this example. For example, a ferromagnetic material such as iron may be placed in place of either the first magnet 21 on the first unit (11) side or the second magnet 22 on the second unit side. Such a configuration can reduce the number of magnets to be placed, thereby contributing to a reduction in product cost. Furthermore, when connecting the first unit (11) and the second unit (12, 13), the connection can be established without restricting the vertical direction of each unit when the units are connected by the polarity of the magnets. Therefore, a wider degree of freedom in connection can be ensured when connecting the two units by magnetic force.

[0092] [First Modification] In the above-described embodiment, a configuration example is shown in which a magnet is provided inside the cover and the cover itself is formed using a non-magnetic material, but the invention is not limited to this example. For example, one of the covers 11b or 12b, 13b may be made of a ferromagnetic material, and no magnet may be placed inside the cover made of this ferromagnetic material.

[0093] Figure 5 is a schematic diagram showing a specific configuration example of a first modified example of one embodiment of the present invention. As shown in Figure 5, for example, the cover 11b on the first unit (11) side is formed of a non-magnetic material (such as resin), and the first magnet 21 is placed inside this cover 11b. On the other hand, the cover 12b (13b) on the second unit side (12, 13; only the 12 side is shown in Figure 5) is formed of a ferromagnetic material.

[0094] With this configuration, the arrangement of magnets on the second unit (12 (13)) can be omitted, thus reducing the number of parts and contributing to a reduction in product cost. Note that the example of using a ferromagnetic cover is not limited to the above example and can be realized in various combinations.

[0095] [Second Modification] In the above-described embodiment, a configuration example is shown in which a magnet is provided inside the cover and the cover itself is formed using a non-magnetic material, but the invention is not limited to this example. For example, a magnet may be placed in either cover 11b or cover 12b, 13b, and a ferromagnetic material may be placed on the housing side of the other unit.

[0096] Figure 6 is a schematic diagram showing a specific configuration example of a second modified example of one embodiment of the present invention. As shown in Figure 6, for example, a ferromagnetic material 21A such as iron is placed inside the housing 11a on the first unit (11) side, and the first magnet 21 is not placed inside the cover 11b. On the other hand, the second magnet 22 is placed inside the cover 12b (13b) on the second unit (12 (13)) side.

[0097] In this configuration, the ferromagnetic material 21A on the first unit side is positioned so that it faces the second magnet 22 on the second unit side when the first unit is connected to the second unit.

[0098] With this configuration, the arrangement of magnets on the first unit (11) side can be omitted, thus reducing the number of parts and contributing to a reduction in product cost. It should be noted that the above example is not the only example of a configuration in which a ferromagnetic material is placed on the housing side; it can be realized in various combinations.

[0099] [Third Modification] Figure 7 is a schematic diagram showing a specific configuration example of a third modification of one embodiment of the present invention. As shown in Figure 7, for example, the housing 11a on the first unit (11) side is formed of a ferromagnetic material (iron material, etc.). The first magnet 21 is not placed inside the cover 11b on the first unit side. On the other hand, the second magnet 22 is placed inside the cover 12b (13b) on the second unit (12 (13)) side.

[0100] With this configuration, the same effects as in the second modified example described above can be obtained. Furthermore, in this modified example, since the housing of the first unit itself is made of a ferromagnetic material, it becomes easy to ensure connection between the two units regardless of the position of the magnet on the second unit.

[0101] [Fourth Modification] In the above-described embodiment, the magnet is fixed to the inner surface of the cover using a fixing member such as an adhesive, but the means of fixing the magnet is not limited to this example. For example, the magnet can be fixed to the cover by using the housing or a part of the internal components of the housing as a fixing member.

[0102] For example, Figure 8 is a schematic diagram showing a specific configuration example of a fourth modified example of one embodiment of the present invention. As shown in Figure 8, for example, the first magnet 21 on the first unit (11) side is positioned so that a part 11ax of the housing 11a on the first unit (11) side is in contact with a part of the first magnet 21. Also, the second magnet 22 on the second unit (12, 13) side is positioned so that a part 12ax of the housing 12a (13a) on the second unit (12, 13) side is in contact with a part of the second magnet 22.

[0103] With this configuration, since no adhesive or other materials are used to fix the magnets to the cover, it contributes to reducing assembly man-hours during the manufacturing process, as well as to lowering manufacturing and product costs.

[0104] In the above-described embodiment, the four first magnets 21 on the first unit side are shown in a configuration where the same magnetic poles are positioned in the same direction (a configuration where the north poles face the back side; see Figures 3 and 4), but the system is not limited to this example. For example, two of the four first magnets 21 on the first unit may be positioned with their north poles facing the back side (second unit side), while the other two of the four first magnets 21 may be positioned with their south poles facing the back side (second unit side). In such a configuration, the arrangement of the second magnets 22 on the second unit side also needs to take into account the polarity of the first magnets 21 positioned opposite each other.

[0105] In this configuration, when connecting the first unit (11) to the second units (12, 13), the orientation of the first unit (11) in the up, down, left, and right directions of the display screen can always be set to a predetermined orientation. In other words, it is possible to prevent connection in an orientation different from the predetermined orientation.

[0106] In the above-described embodiment, the first surface 11aa and the second surface 11ab of the first unit (11) are each configured as horizontally elongated rectangles. In accordance with this shape, the first magnet 21 and the second magnet 22 are arranged at the respective corners of each unit (11, 12, 13).

[0107] In addition, the polarity of each magnet 21, 22 is such that, within the same plane, the same magnetic pole faces the same direction. For example, all first magnets 21 are positioned with their north poles facing the back, and all second magnets 22 are positioned with their south poles facing the front.

[0108] Therefore, with this configuration, when connecting the first unit (11) to the second units (12, 13), the first unit (11) can be connected in any form without being restricted in the vertical direction.

[0109] Therefore, by appropriately setting the arrangement of each magnet 21, 22, it is possible to avoid connection restrictions not only in the vertical direction but also in the horizontal direction.

[0110] For example, the arrangement of each magnet 21, 22 is such that they form an approximate square. That is, the first magnet 21 is placed at a position on the periphery of the second face 11ab of the first unit (11) where the side length is approximately the same as the distance between the corners of the short side, forming an approximate square. The second magnets 22 are placed in the second unit at positions corresponding to each of the first magnets 21.

[0111] With this configuration, when connecting the first unit (11) to the second units (12, 13), the first unit (11) can be selectively connected and held at four positions rotated by approximately 90 degrees each.

[0112] Furthermore, by adjusting the number of magnets used, the vertical orientation of the first unit (11) during connection can also be defined. For example, two first magnets 21 can be placed on the upper side of the first unit (11) and one first magnet 21 on the lower side. In this way, by appropriately arranging an odd number of magnets on the outer edge of one side of one unit, for example by placing magnets at each vertex of a triangle, the vertical, horizontal, and vertical positions during connection can be easily defined.

[0113] [Fifth Modification] Incidentally, the display unit 11 as the first unit is equipped with an angle adjustment mechanism that allows the display surface to be tilted at an arbitrary angle relative to the main body when the endoscope system 10 is in use, and to maintain that state.

[0114] Figure 9 is a schematic perspective view conceptually showing one example of the configuration of a display unit equipped with an angle adjustment mechanism, which is applied to an endoscope system according to one embodiment of the present invention. Figure 10 is an external view showing the display unit in a half-open state in an endoscope system to which the display unit equipped with the angle adjustment mechanism of Figure 9 is applied. Figure 11 is an external view showing the display unit in a fully open state in an endoscope system to which the display unit equipped with the angle adjustment mechanism of Figure 9 is applied.

[0115] The angle adjustment mechanism 15 used in this modified example employs a so-called torque hinge that can stop movement in the opening direction at any open position and maintain that position. The angle adjustment mechanism 15 is composed of a flat plate-shaped member 15a and a hinge portion 15b.

[0116] The flat plate-shaped member 15a is a frame member of the angle adjustment mechanism 15. This flat plate-shaped member 15a is positioned along the back of the device (display unit 11) to which the angle adjustment mechanism 15 is attached.

[0117] A hinge portion 15b is provided on one side of the flat plate-shaped member 15a. The hinge portion 15b is rotatably supported by a support portion 11g provided on one side of the display unit 11. As a result, the hinge portion 15b supports the flat plate-shaped member 15a on the support portion 11g so that it can rotate within a predetermined range around the rotation axis A x (see Figure 9) (see arrow R in the figure).

[0118] Simultaneously, this allows the display unit 11 to rotate freely within a predetermined range in the direction of arrows R1 to R2 shown in Figure 9, via the hinge portion 15b relative to the flat plate-shaped member 15a.

[0119] Here, in the angle adjustment mechanism 15, the state in which the flat plate-shaped member 15a is positioned along the back surface (second surface 11ab) of the display unit 11 is referred to as the first state (or fully closed state) of the angle adjustment mechanism 15.

[0120] At this time, the display unit 11 attached to the angle adjustment mechanism 15 is positioned with the display surface of the display device facing outwards. Therefore, the endoscope system 10 is ready for use at this time.

[0121] When the angle adjustment mechanism 15 is in the first state, the second surface 15ab, which is the back side of the flat plate member 15a, has first magnets 21 positioned near the four corners, facing the back side. Therefore, with this configuration, when the angle adjustment mechanism 15 is in the first state with the display unit 11 attached, it can connect the first unit (11) and the second unit (12, 13) by bringing the first magnets 21 closer to the second magnets 22 (see Figure 10) of the second unit (12, 13).

[0122] When the display unit 11 is in this state (angle adjustment mechanism 15 in the first state), rotating it in the direction of arrow R1 in Figure 9 will cause the display unit 11 to eventually transition to the state shown in Figure 10.

[0123] The state shown in Figure 10 indicates that the display unit 11 is open at a right angle to the first surface (12aa, 13aa) and the second surface (12ab, 13ab) of the second unit (12, 13). This state is referred to as the second state (half-open state) of the angle adjustment mechanism 15.

[0124] At this time, the display unit 11 attached to the angle adjustment mechanism 15 is positioned with the display surface of the display device facing upwards. The endoscope system 10 is still usable at this time.

[0125] When the display unit 11 is in this state (angle adjustment mechanism 15 in the second state), if it is further rotated in the direction of arrow R1 in Figure 10, the display unit 11 will eventually transition to the state shown in Figure 11.

[0126] The state shown in Figure 11 indicates that the display unit 11 is open until it is parallel to the first surface (12aa, 13aa) and the second surface (12ab, 13ab) of the second unit (12, 13). This state is referred to as the third state (or fully open state) of the angle adjustment mechanism 15.

[0127] At this time, the display unit 11 attached to the angle adjustment mechanism 15 is positioned with the display surface of the display device facing the rear side. Even at this time, the endoscope system 10 is in a usable state.

[0128] Thus, the rotation range of the angle adjustment mechanism 15 is the range from the first state described above through the second state to the third state.

[0129] Furthermore, the sum of the magnetic forces M between the first magnet 21 of the angle adjustment mechanism 15 to which the display unit 11 is attached and the second magnet 22 on the second unit (12, 13) side is set to be greater than the force required for angle adjustment (the rotational force of the angle adjustment mechanism 15 mounted on the display unit 11).

[0130] This configuration allows the angle adjustment operation of the display unit 11 to be performed while maintaining the connection between the first unit (11) and the second units (12, 13).

[0131] [Sixth Modification] In the fifth modification described above, when the angle adjustment mechanism 15 is in the third state (the state in Figure 11), for example, if the display unit 11 is temporarily removed from the second unit (12, 13), and then the display unit 11 and the angle adjustment mechanism 15 are rotated in the direction of arrow R3 in Figure 11 while maintaining that state (the third state), the configuration shown in Figure 12 can be obtained.

[0132] Figure 12 is an external view showing the state when the fully open display unit is inverted and connected in an endoscope system to which the angle adjustment mechanism of Figure 9 is applied.

[0133] In this state, it would be very convenient if the endoscopic system could be used with the first unit (11) and the second units (12, 13) connected.

[0134] However, if the endoscope system remains in the configuration of the sixth modified example described above, it is not possible to invert the display unit and connect the first unit (11) and the second units (12, 13) as described above.

[0135] In the sixth modified configuration described above, the first magnet 21 is provided on the angle adjustment mechanism 15 on the first unit (11) side, and the second magnet 22 is provided on the second unit (12, 13) side.

[0136] If the angle adjustment mechanism 15 is rotated in the direction of arrow R3 in Figure 12, with this configuration remaining, and the display unit 11 is inverted, the polarity of the back side (connection surface side) of the first magnet 21 becomes the same as the polarity of the front side (connection surface side) of the second magnet 22 of the second unit.

[0137] Therefore, in this state, the first magnet 21 of the first unit and the second magnet of the second unit cannot be connected.

[0138] Therefore, in the sixth modification, a ferromagnetic material is placed in place of the second magnet on the second unit side. With this configuration, as shown in Figure 12, even when the display surface of the display device is facing forward when the angle adjustment mechanism 15 is in the third state, the first magnet 21 of the flat plate member 15a attracts the ferromagnetic material of the second unit (12, 13). Thus, even in the state shown in Figure 12, the first unit (11) and the second unit (12, 13) can be connected.

[0139] Thus, in the fifth and sixth modified examples, by attaching the first magnet 21 to the angle adjustment mechanism 15 to which the display unit 11 is attached, a detachable configuration with the second units (12, 13) can be achieved. At the same time, the angle of the display surface of the display unit 11 can be changed and set in various ways, ensuring a wider degree of freedom in the display mode of the display unit 11. Therefore, it can contribute to improving the operability of the endoscope system. In this case, the angle adjustment mechanism 15 itself may be made of a magnetic material. That is, the angle adjustment mechanism 15 can be configured to include a magnet or magnetic material.

[0140] [Seventh Modification] In the above-described embodiment, the first unit (11) and the second units (12, 13) are configured to be detachable, and magnets (21, 22) are provided on each of the covers (11b, 12b, 13b) of each unit, and the connection and disconnection can be performed using the magnetic force of the magnets (21, 22).

[0141] In this configuration, the force required to maintain the connection depends on the combined magnetic force of the multiple magnets. For example, if the connection easily separates when an external force such as a fall impact is applied, the equipment may fall off, potentially leading to damage.

[0142] Therefore, in order to maintain the connection even when a certain amount of external force is applied, one possible method is to use a magnet with strong magnetic force. However, when considering the connection force, it may become difficult for the user to easily separate the components when necessary, potentially worsening usability. In addition, using a magnet with strong magnetic force tends to increase component costs.

[0143] Therefore, a configuration is desired that can secure a predetermined level of connection force without employing magnets with strong magnetic force.

[0144] A seventh modified configuration for this purpose is shown below. In this seventh modified configuration, in addition to the configuration of the above-described embodiment, an engagement connection part is provided to mechanically engage the first unit and the second unit.

[0145] Figure 13 is a schematic perspective view conceptually showing a seventh modification of an endoscope system according to one embodiment of the present invention. In Figure 13, the first unit and the second unit are shown separated. Figure 14 is an enlarged cross-sectional view of a key part showing a cross section along the line

[14] -

[14] in Figure 13. Figure 15 is an enlarged cross-sectional view of a key part showing a cross section along the line

[15] -

[15] in Figure 13.

[0146] In this seventh modification, the display unit 11, which is the first unit, has a receiving hook portion 11e on its second surface 11ab on the rear side. Correspondingly, the main body unit 12, which is part of the second unit, has a locking hook 12e on its first surface 12aa on the front side.

[0147] Here, the receiving hook portion 11e on the first unit (display unit 11) side receives and engages with the locking hook 12e. In this case, the receiving hook portion 11e consists of a pair of hook members, both of which are formed in a substantially L-shape in the cross-section shown in Figure 14 and the longitudinal section shown in Figure 15. As shown in Figure 13, the pair of hook members are arranged on the second surface 11ab of the display unit 11 so as to face each other at a predetermined distance in the horizontal direction. The pair of hook members have an opening facing downwards. The distance between the pair of hook members is set to be longer than the horizontal length dimension of the locking hook 12e.

[0148] The locking hook 12e on the second unit (main body unit 12) side has a substantially L-shaped vertical cross-section as shown in Figure 15 and consists of a hook member having a horizontal length as shown in Figure 13. The locking hook 12e has an opening facing upward. The horizontal length dimension of the locking hook 12e is set to be shorter than the distance between the pair of hook members in the receiving hook portion 11e.

[0149] Furthermore, the vertical engagement dimension (see reference numeral D2 in Figure 15) when the receiving hook portion 11e and the locking hook 12e engage is set to be greater than the vertical dimension between the first magnet 21 and the second magnet 22 (see reference numeral D1 in Figure 13) (D2 > D1).

[0150] Similarly, the lateral engagement dimension (see reference numeral D4 in Figure 14) when the receiving hook portion 11e and the locking hook 12e engage is set to be greater than the horizontal dimension between the first magnet 21 and the second magnet 22 (see reference numeral D3 in Figure 13) (D4 > D3).

[0151] Alternatively, the dimension obtained by subtracting the horizontal length D6 of the locking hook 12e from the opening dimension D5 of the receiving hook portion 11e and dividing the result by 2 ((D5-D6) / 2; see reference numeral D7 in Figure 14) is set to be smaller than the horizontal dimension between the first magnet 21 and the second magnet 22 (see reference numeral D3 in Figure 13) (D3 > D7).

[0152] With this configuration, after the second surface 11ab of the first unit is facing the first surface 12aa of the second unit, when the first unit is slid from top to bottom, the receiving hook portion 11e of the first unit is locked to the locking hook 12e of the second unit.

[0153] Simultaneously, the first magnet 21 of the first unit and the magnetic material (second magnet 22) of the second unit are positioned opposite each other. As a result, the two units are connected by magnetic force.

[0154] In this embodiment, as described above, the contact surfaces (11bx, 12bx, 13bx) of each cover (11b, 12b, 13b) are all formed by smooth planes (flat surfaces). As a result, the configuration does not specify the direction of operation during connection. Therefore, as described above, the contact surfaces of each cover of both units can be positioned opposite each other by the relative sliding movement of the two units (11 and 12, 13), thereby ensuring a magnetic connection.

[0155] According to the seventh modified example described above, which has the above configuration, in addition to magnetic connection, a mechanical connection means using a hook member is provided as a means of connecting the first unit and the second unit.

[0156] With this configuration, even if the first unit (display unit 11) to be mounted is subjected to unintended external forces or impacts from dropping, the distance between the first magnet 21 and the second magnet 22 (magnetic material) will not increase beyond a predetermined level, thereby ensuring connection between the two units.

[0157] Furthermore, even if the locking state between the receiving hook portion 11e and the locking hook 12e is released when both units move in the sliding direction due to impact or the like, the magnetic connection between the magnets is maintained for a wide range of times. Therefore, even if the two units slide relative to each other and the hook locking is released, the magnetic connection can be expected to be restored.

[0158] Therefore, when external force is applied to the connected first and second units, it can help prevent the first unit from detaching from the second unit, thereby reducing equipment failure or user injury caused by equipment detachment.

[0159] Incidentally, in addition to the four basic component units described above (display unit 11, main unit 12, insertion unit 13, and operation unit 14), the endoscope system 10 also includes optional endoscope units such as various external devices (smartphones or tablet terminals, etc.), other accessories, an accessory storage case, and a carrying case for the main unit.

[0160] Here, various external devices include smartphones and tablet terminals, which can be dedicated or general-purpose devices. These external devices can be used, for example, as remote control terminals or as external communication terminals.

[0161] Therefore, these optional units for endoscopes can also be configured to be detachably attached to any of the basic component units of the endoscope device by applying the attachment / detachment system shown in the above-described embodiment and each of its modifications.

[0162] This configuration eliminates the need for the user to hold each device when using an endoscope and an optional endoscope unit in conjunction, thereby improving operability.

[0163] Furthermore, by connecting the endoscope device and a carrying case, etc., into a single integrated form, convenience during use or transport can be improved.

[0164] The present invention is not limited to the embodiments described above, and various modifications and applications can be implemented without departing from the spirit of the invention. Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriate combinations of the multiple constituent elements disclosed. For example, if the problem that the invention aims to solve can be solved and the effects of the invention can be obtained even if some constituent elements are deleted from all the constituent elements shown in one embodiment, then the configuration with these deleted constituent elements can be extracted as an invention. Furthermore, constituent elements from different embodiments may be combined as appropriate. This invention is not limited by any particular embodiment other than being limited by the appended claims.

[0165] 10... Endoscope system 11... Display unit 11a, 12a, 13a... Housing 11b, 12b, 13b... Cover 11bx... Contact surface 11d... Display device 11e... Receiving hook part 11g... Support part 12... Main unit 12e... Locking hook 13... Insertion unit 14... Operation unit 14x... Connection cable 15... Angle adjustment mechanism 15a... Flat plate-shaped member 15b... Hinge part 21... First magnet 21A... Ferromagnetic material 22... Magnetic material (second magnet) 23... Adhesive (fixing member)

Claims

1. An endoscope system including an insertion section with an image sensor positioned at its tip, comprising: a first unit having a first housing, a magnet positioned in the first housing, and a cover positioned in the first housing to cover the magnet; and a second unit having a second housing and a magnetic material positioned in the second housing, wherein the first unit and the second unit are detachably connected by the magnet and the magnetic material.

2. The endoscope system according to claim 1, characterized in that the magnet is disposed between the first housing and the cover.

3. The endoscope system according to claim 2, characterized in that the magnet is fixed to the cover using a fixing member.

4. The endoscope system according to claim 3, characterized in that the fixing member is an adhesive.

5. The endoscope system according to claim 3, characterized in that the fixing member is a part of the first housing or a part of the second housing.

6. The endoscope system according to claim 1, further comprising a second cover disposed on the second housing so as to cover the magnetic material.

7. The endoscope system according to claim 1, characterized in that the magnetic material is part of the second housing.

8. The endoscope system according to claim 1, characterized in that the cover is part of the first housing.

9. The endoscope system according to claim 1, characterized in that the contact surface of the cover with the second housing is formed smoothly.

10. The endoscope system according to claim 1, characterized in that the first unit or the second unit is equipped with an angle adjustment mechanism, and the magnet or magnetic material is included in the angle adjustment mechanism.

11. The endoscopic system according to claim 1, characterized in that each of the first unit or the second unit is provided with a control device, a display device, an operating device, or a unit combining these.

12. The endoscope system according to claim 1, further comprising a third housing, wherein the third housing has the insertion portion.

13. The endoscope system according to claim 1, characterized in that the insertion portion is located in the first housing or the second housing.

14. The endoscope system according to claim 11, characterized in that one of the first unit or the second unit has the control device, and the other of the first unit or the second unit has the display device and the operating device.

15. The endoscope system according to claim 11, characterized in that the second unit is a mobile device and the operating device is a touch panel located on the display device.

16. The endoscopic system according to claim 11, characterized in that one of the first unit or the second unit is an endoscopic device having the control device, the insertion unit, the display device, and the operating device.

17. The endoscope system according to claim 16, characterized in that the other of the first unit or the second unit has the operating device.

18. The endoscope system according to claim 11, characterized in that the operating device is connected to the first housing or the second housing by a cable.

19. The endoscope system according to 17, wherein the other of the first or second unit further includes a display device, and the operating device is a touch panel located on the display device.

20. The other of the first unit or the second unit is an optional unit for endoscopes, and the optional unit for endoscopes includes at least one of a remote control terminal, a carrying case, and an adapter case, as described in 16.

21. A detachable system between a first unit and a second unit constituting an endoscope system, comprising: a magnet disposed in a first housing included in the first unit; a cover disposed in the first housing and covering the magnet; and a magnetic material disposed in a second housing included in the second unit, wherein the first unit and the second unit are configured to be detachably attached to each other by the magnet and the magnetic material.

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