Endoscope

Abstract

The present invention relates to an endoscope comprising: an illuminating / image-capturing unit; an insertion unit provided with an insertion tube; and an operation unit including an operation knob and an operation wire for bending the insertion tube according to an operation of the operation knob. The operation unit includes a coupling part that is coupled to the insertion unit according to the rotation of a rotatably operable dial. Therefore, the present invention has the effect that an operator can easily couple the insertion unit and the operation unit via a simple operation of turning the dial.

Description

endoscopy

[0001] The present invention relates to an endoscope, and more particularly, to an endoscope in which an insertion part and an operating part are detachably provided so that a disposable insertion part can be replaced and used.

[0002]

[0003] A medical endoscope is a device that is inserted directly into the internal tissue of the human body to check the condition of the affected area or perform a procedure.

[0004] A typical endoscope features a flexible insertion tube with an articulating assembly at the end, allowing for control of the insertion direction during insertion into the body. A distal end body equipped with an image sensor and a light source is provided at the end of the articulating assembly. A handle body may be provided at the other end of the insertion tube. The handle body is connected to an image processing device (not shown) via a separate cable and connector.

[0005] The handle body has dials and buttons used to adjust the direction of the joint assembly and for operation.

[0006] A pair of dials are arranged to adjust the direction of movement of the distal end body in the longitudinal direction of the insertion tube, up and down and left and right. A sprocket and a chain are provided inside the handle body to convert the rotational motion of the dial into linear motion. The chain is connected to the end of the joint assembly via a separate wire. Consequently, the rotation of the dial is converted into linear motion of the wire through the sprocket and chain, and the joint assembly bends according to the linear motion of the wire. Thus, the operator of the endoscope can control the direction of movement of the distal end body during the process of inserting the insertion tube into the human body.

[0007] Because endoscopes are inserted into the human body, thorough hygiene management is essential, and they must be cleaned and disinfected before and after each examination or surgery. In some cases, reusing the parts that are actually inserted into the body, such as the insertion tube and joint assembly, may be impossible or undesirable. In this case, conventional endoscopes, which are constructed as a single unit, require the entire endoscope device to be replaced, creating the problem of requiring replacement. Furthermore, even if reuse is possible, cleaning and disinfection procedures can be performed more easily if only parts, rather than the entire endoscope, can be removed.

[0008] Korean Patent Publication No. 10-2014-0063947 discloses an endoscope in which the handle body and the operating unit body are configured to be detachable. However, the endoscope has a problem in that the wires cannot be easily detached and reattached due to the operating structure, so other parts must be detached while the wires are left in place, resulting in low usability. Even if the wire detachment problem is resolved, when the endoscope is bent, the difference in radius makes it difficult to precisely operate the endoscope because the distances traveled by the pair of wires are different.

[0009]

[0010]

[0011] The present invention was created to improve the problems of conventional endoscopes as described above, and its purpose is to provide an endoscope in which an operator can easily combine an insertion part and an operating part.

[0012] In addition, the purpose is to provide an endoscope in which the wire on the insertion side and the wire on the operation side can be precisely combined.

[0013]

[0014] In order to achieve the above-described purpose, the endoscope according to the present invention includes an insertion section having an illumination photographing section and the insertion tube; and an operation section including an operation knob and an operation wire for bending the insertion tube according to the operation of the operation knob; and the operation section may include a coupling section coupled to the insertion section according to the rotation of a dial provided to enable rotational operation.

[0015] Specifically, the above-mentioned coupling part may be a first coupling part provided in the above-mentioned operating part.

[0016] At this time, the coupling part may include a first coupling plate that moves according to the rotation of the dial and is coupled to the insertion part.

[0017] At this time, the coupling part may further include a pinion gear that rotates in conjunction with the rotation of the dial; a rack gear that is coupled to the first coupling plate, meshes with the pinion gear, and reciprocates according to the rotation of the pinion gear.

[0018] Meanwhile, the coupling portion may further include a first wire frame to which the manipulation wire is coupled and which reciprocates along the first coupling plate.

[0019] Therefore, when the above-mentioned operating knob is operated, the first wire frame can be moved linearly back and forth along the guide groove formed in the first joining plate.

[0020] Meanwhile, the coupling part may further include a locking pin that is arranged on the first coupling plate and is received in a fixed groove formed in the first wire frame according to reciprocating movement.

[0021] Additionally, the coupling portion may further include a spring that presses the locking pin in the direction of the first wire frame.

[0022] In addition, the coupling part may further include a lock holder coupled to the first coupling plate and configured to reciprocally accommodate the lock pin.

[0023] Meanwhile, the insertion portion includes a second joining portion that is joined to the first joining portion.

[0024] At this time, the second coupling portion may include a second coupling plate that is detachably coupled to the first coupling plate.

[0025] The second connecting portion may include a second wire frame to which a banding wire is connected and which is connected to the first wire frame and moves reciprocally together with the first wire frame.

[0026] Accordingly, the first wire frame and the second wire frame are combined to be able to move in a straight line along the guide space formed by combining the first coupling plate and the second coupling plate, and the operating force of the operating knob can be transmitted.

[0027] That is, the operating unit includes a dial that is provided to be rotatable; a pinion gear that rotates in conjunction with the rotation of the dial; a rack gear that meshes with the pinion gear and reciprocates according to the rotation of the pinion gear; and a coupling plate that is coupled with the rack gear and is removably coupled with the insertion unit; and the operating unit and the insertion unit can be removably coupled through the rotation of the dial.

[0028] In addition, the insertion part includes a bending wire that operates to bend the insertion tube; and the operation part includes a manipulation wire that moves the bending wire according to the operation of the manipulation knob; and the bending wire and the manipulation wire can be detachably connected according to the operation of the dial.

[0029]

[0030] As described above, the endoscope according to the present invention has a pinion gear and a rack gear, so that the operator can easily connect the insertion part and the operation part by simply turning the dial connected to the pinion gear.

[0031] In addition, since a wire frame is provided to connect the wire on the insertion side and the wire on the operation side and make a linear reciprocating motion within the joining plate, there is an effect that allows for precise manipulation of the wire.

[0032]

[0033] FIG. 1 is a perspective view illustrating an endoscope according to one embodiment of the present invention.

[0034] FIG. 2 is a perspective view for explaining the attachment / detachment relationship between the operating unit and the insertion unit in an endoscope according to one embodiment of the present invention.

[0035] Figure 3 is a plan view of Figure 2.

[0036] FIG. 4 is a drawing for explaining a method of coupling a first coupling part and a second coupling part in an endoscope according to one embodiment of the present invention.

[0037] Figure 5 is an enlarged view of Figure 4 viewed from a different angle.

[0038] FIG. 6 is a drawing for explaining a state in which a first coupling portion and a second coupling portion are coupled in an endoscope according to one embodiment of the present invention.

[0039] FIGS. 7 to 13 are drawings for explaining a structure for guiding the initial position of a wire frame in an endoscope according to one embodiment of the present invention.

[0040] Figure 14 is a perspective view of Figure 2 viewed from a different angle.

[0041] Fig. 15 is a perspective view for explaining an illumination photographing unit in an endoscope according to one embodiment of the present invention.

[0042] Fig. 16 is a perspective view for explaining the internal structure of an illumination photographing unit in an endoscope according to one embodiment of the present invention.

[0043] FIG. 17 is a drawing for explaining a heat sink in an endoscope according to one embodiment of the present invention.

[0044] FIG. 18 and FIG. 19 are drawings for explaining an insertion tube in an endoscope according to one embodiment of the present invention.

[0045] FIG. 20 is a drawing for explaining a first bending member in an endoscope according to one embodiment of the present invention.

[0046] FIG. 21 is a drawing for explaining a second bending member in an endoscope according to one embodiment of the present invention.

[0047]

[0048] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0049] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0050] When describing the present invention, terms such as "first" and "second" may be used to describe various components. However, these components may not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, the first component could be referred to as the "second component," and similarly, the second component could also be referred to as the "first component."

[0051] The term "and / or" may include any combination of multiple related listed items or any one of multiple related listed items.

[0052] When a component is referred to as being "connected" or "connected" to another component, it can be understood that it is directly connected or connected to that other component, but that there may be other components in between. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it can be understood that there are no other components in between.

[0053] The terminology used in this application is solely for the purpose of describing specific embodiments and is not intended to limit the present invention. Singular expressions may include plural expressions, unless the context clearly dictates otherwise.

[0054] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, and can be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0055] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries, such as those defined in the present application, may be interpreted to have a meaning consistent with their meaning in the context of the relevant technology, and, unless explicitly defined herein, may not be interpreted in an idealized or overly formal sense.

[0056] In addition, the following examples are provided to more completely explain to a person having average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

[0057]

[0058] FIG. 1 is a perspective view illustrating an endoscope according to one embodiment of the present invention, FIG. 2 is a perspective view illustrating a connection / detachment relationship between an operating unit and an insertion unit in an endoscope according to one embodiment of the present invention, and FIG. 3 is a plan view of FIG. 2.

[0059] Referring to FIGS. 1 to 3, an endoscope (1) according to one embodiment of the present invention may be a disposable endoscope. Specifically, the endoscope (1) according to one embodiment of the present invention includes an operating unit (100) and an insertion unit (200). At this time, the operating unit (100) and the insertion unit (200) can be detachably coupled to each other by means of coupling units (150, 250). At this time, the coupling units (150, 250) include a first coupling unit (150) provided to the operating unit (100) and a second coupling unit (250) provided to the insertion unit (200).

[0060] In the present invention, the coupling portion (150, 250) converts the rotational motion of the dial (152) into linear motion by means of a pinion gear (153) and a rack gear (154), and accordingly, the coupling plates (155, 255) provided in the operating portion (100) and the insertion portion (200) are configured to be coupled to each other. At this time, the coupling plates (155, 255) include a first coupling plate (155) provided in the operating portion (100) and a second coupling plate (255) provided in the insertion portion (200).

[0061] Meanwhile, in the present invention, the connection of the wires (130, 230) can be made by wire frames (156, 256). That is, the wire (130) includes a manipulation wire (130) provided in the manipulation unit (100) and a bending wire (230) provided in the insertion unit (200), and these are respectively connected to a first wire frame (156) provided in the manipulation unit and a second wire frame (256) provided in the insertion unit (200). At this time, the first wire frame (156) and the second wire frame (256) are connected to each other in a detachable manner, and when connected, can be moved linearly back and forth within the connecting plates (155, 255).

[0062] This will be described in more detail later.

[0063]

[0064] The operating unit (100) is provided so that the operator can operate it. The operating unit (100) can be provided so that the operator can hold and operate it. The operating unit (100) can bend the insertion unit (200) through the operator's operation.

[0065] The insertion part (200) is provided so that it can be inserted into the human body by manipulation of the operating part (100) and photograph the inside of the human body. The insertion part (200) can be inserted into the human body, and is provided so as to be bendable according to manipulation of the operating part (100) so that it can move along the internal structure of the human body, and can irradiate light into the inside of the human body and photograph it.

[0066]

[0067] Although not shown, the endoscope (1) according to one embodiment of the present invention may further include a connector adapter and a universal cord.

[0068] Specifically, the endoscope (1) includes a connector adapter for connection to an external device, and the connector adapter can be connected to an operating unit (100) via a universal cord. The external device connected to the connector adapter may be an image processing device. Through this, an image captured by the insertion unit (200) can be displayed on the external image processing device. Through this, the operator can operate the operating unit (100) while viewing the image captured by the insertion unit (200) on the image processing device.

[0069]

[0070] The operating unit (100) includes an operating unit housing (110), an operating knob (120), an operating wire (130), and a first connecting unit (150).

[0071] The operating unit housing (110) can accommodate an operating wire (130) for driving the insertion unit (200) inside while providing a structure for the operator to grasp.

[0072] Specifically, an operation knob (120) is arranged on the upper part of the operation unit housing (110), a first coupling part (150) is arranged on one side in the longitudinal direction of the operation knob (120), and a sprocket and a chain and an operation wire (130) that are linked to the rotation of the operation knob (120) are accommodated inside the operation unit housing (110), and channels and the like can be additionally accommodated.

[0073]

[0074] The operating knob (120) can control the insertion part (200) by rotating according to the operation of the user. The operating knob (120) can be configured to include two or more knobs. For example, the operating knob (120) can be provided in a form in which a first knob (121) and a second knob (122) are stacked in the vertical direction. The first knob (121) and the second knob (122) are respectively connected to the first sprocket and the second sprocket, which will be described later, and are configured to rotate independently of each other. The first knob (121) and the second knob (122) have a form in which multiple teeth protrude so that the operator can easily grip and rotate them.

[0075] Meanwhile, the first knob (121) can rotate independently while the second knob (122) remains stationary. Similarly, the second knob (122) can rotate independently while the first knob (121) remains stationary. The first knob (111) controls the up and down movement of the lighting photographing unit (210). That is, when the first knob (121) is turned clockwise or counterclockwise, the end of the lighting photographing unit (210) bends upward or downward accordingly. The second knob (122) controls the left and right movement of the lighting photographing unit (210). That is, when the second knob (122) is turned clockwise or counterclockwise, the end of the lighting photographing unit (210) bends to the left or right accordingly.

[0076] In this way, the rotation direction of the lighting photographing unit (210) can be arbitrarily adjusted by operating the first knob (121) and the second knob (122). Depending on the embodiment, it may be necessary to fix the lighting photographing unit (210) in a state where it is bent at a specific angle, and for this purpose, a fixing knob (123) is provided on the upper side of the second knob (122). When the fixing knob (123) is rotated, the first sprocket and the second sprocket are fixed so as not to rotate, and accordingly, the end of the lighting photographing unit (210) is also maintained in a fixed state.

[0077] Although not shown, two sprockets are mounted on the lower portions of the first knob (121) and the second knob (122) so as to be rotatable in conjunction with the rotation of the first knob (121) and the second knob (122). In addition, a chain is provided that moves in conjunction with each of the sprockets. The chains are responsible for the up-and-down movement and left-right movement of the lighting photographing unit (210), respectively, and they can move independently of each other.

[0078] The above chain is connected at both ends to a manipulation wire (130). The manipulation wire (130) is guided to move through a guide structure formed inside the manipulation unit housing (110).

[0079] The manipulation wire (130) is coupled to the first coupling portion (150). Specifically, the manipulation wire (130) is coupled by the first wire frame (156) of the first coupling portion (150). The first wire frame (156) is slidably mounted within a limited range of the first coupling plate (155).

[0080] Meanwhile, the first wire frame (156) is coupled with the second wire frame (256) of the insertion portion (200), and accordingly, the manipulation wire (130) can be connected to the bending wire (230).

[0081] Accordingly, the manipulation wire (130) can bend the insertion tube (220) according to the manipulation of the manipulation knob (120).

[0082] Meanwhile, Fig. 14 shows a perspective view of Fig. 2 from a different angle.

[0083] Referring to Fig. 14, the operating unit (100) may be provided with a channel (140) for supplying air and water to the affected area during the procedure. For example, the channel (140) may be a supply channel and a suction channel. At this time, the supply channel may be an air supply channel and / or a water supply channel. The air supply channel, the water supply channel, and the suction channel have a substantially cylindrical shape and are hollow inside, so that when combined with the lighting photographing unit (210), they are inserted into the interior of the lighting photographing unit (210) so that water or air, etc., can be stably supplied to the treatment or examination area without leakage.

[0084] Meanwhile, although not shown, the operation unit (100) may further be equipped with a connection terminal. The connection terminal may be electrically connected to the lighting and photography unit (210) so that data obtained by a camera, etc., provided at the end of the lighting and photography unit (210) can be transmitted to an external device. For example, the connection terminal may be an HDMI terminal for transmitting audio and video.

[0085] The above channel (140) and connection terminal may be positioned lower than the wires (130, 230). For example, the channel (140) and connection terminal may be accommodated in a space formed by the operation unit housing (110), the first coupling body (151), and the second coupling body (251), but may be positioned further from the operation knob (120) than the operation wire (130).

[0086] At this time, the area where the manipulation wire (130) and the bending wire (230) move and the area where the channel (140) and the connection terminal are arranged can be divided by the support plate (160). The support plate (160) can partition the internal space of the manipulation unit (100) vertically, and has a channel support part (161) that is coupled with the channel (140) to support the channel (140), so that when the manipulation unit (100) and the insertion part (200) are coupled, the channel (140) can be guided to be connected in the correct position. That is, when the first coupling part (150) and the second coupling part (250) are coupled, the channel (140) of the manipulation unit (100) can be connected with the channel (240) of the insertion part (200).

[0087] The channel support member (161) may be formed to extend downward from the lower surface of the support plate (160), and a circular hole may be formed so that the channel (140) may pass through and be supported. At this time, the number of holes may be formed corresponding to the number of channels (140).

[0088]

[0089] Meanwhile, FIG. 4 is a drawing for explaining a method of coupling a first coupling part and a second coupling part in an endoscope according to an embodiment of the present invention, FIG. 5 is an enlarged view of FIG. 4 viewed from a different angle, FIG. 6 is a drawing for explaining a state in which the first coupling part and the second coupling part are coupled in an endoscope according to an embodiment of the present invention, and FIGS. 7 to 13 are drawings for explaining a structure for guiding an initial position of a wire frame in an endoscope according to an embodiment of the present invention.

[0090] Referring to FIGS. 4 to 13, the first connecting portion (150) is described as follows.

[0091] A first coupling part (150) may be arranged on one end of the operating unit housing (110). The first coupling part (150) may be detachably coupled to the insertion part (200) by manipulation by the operator (user).

[0092] Specifically, the first coupling part (150) includes a first coupling part body (151), a dial (152), a pinion gear (153), a rack gear (154), and a first coupling plate (155).

[0093] The first coupling body (151) is provided to be engaged with the second coupling body (250) of the insertion part (200). For example, the first coupling body (151) may be in the form of a plate that surrounds three surfaces. As another example, the first coupling body (151) may be in the form of a pair of plates that extend from the operating part housing (110) toward the insertion part (200). Accordingly, the first coupling body (151) may be engaged with the second coupling body (251) of the second coupling part (250).

[0094] As a result, the first coupling body (151) can be fitted into the second coupling body (251).

[0095] The dial (152) may be provided so that the user can grasp and rotate it. The dial (152) may be rotatably coupled to the operating unit housing (110).

[0096] Specifically, the dial (152) may be exposed on the outside of the operating unit housing (110). For example, the dial (152) may include a rotating plate in the shape of a disk and a grip portion that protrudes from the rotating plate in the shape of a rib so that the user can hold and turn it.

[0097] The pinion gear (153) is placed inside the first coupling body (151) and can rotate in conjunction with the rotation of the dial (152).

[0098] Meanwhile, the pinion gear (153) may be connected to the dial (152). The pinion gear (153) may be connected to the dial (152) by passing through the first coupling body (151). For example, the pinion gear (153) and the dial (152) may be formed integrally.

[0099] Gear teeth are formed on the outer surface of the pinion gear (153), and can mesh with a rack gear (154) to be described later. At this time, the pinion gear (153) can mesh with a pair of rack gears (154). The pair of rack gears (154) can be arranged at positions facing each other with respect to the pinion gear (153).

[0100] The rack gear (154) meshes with the pinion gear (153) and can move linearly according to the rotation of the pinion gear (153). At this time, a pair of rack gears (154) facing each other can move linearly in opposite directions according to the rotation of the pinion gear (153).

[0101] A pair of rack gears (154) may be arranged between the first coupling bodies (151) formed as a pair. At this time, the pair of rack gears (154) may be arranged along a direction intersecting the forming direction of the first coupling body (151), and may be linearly reciprocated along a direction intersecting the forming direction of the first coupling body (151).

[0102] A pair of rack gears (154) can each be coupled with a first coupling plate (155). The first coupling plate (155) can be formed along a direction intersecting the longitudinal direction of the rack gear (154).

[0103] The first coupling plate (155) may be placed between a pair of surfaces facing each other among the first coupling body (151). In addition, the first coupling plate (155) may be placed between a pair of second coupling bodies (251). Meanwhile, the first coupling plate (155) may be placed on the inside of the second coupling body (251), and may be placed at a position facing the second coupling body (251).

[0104] Additionally, the first coupling plate (155) can be positioned facing the second coupling plate (255). The first coupling plate (155) can be moved together with the rack gear (154) according to the movement of the rack gear (154) and coupled with the second coupling plate (255).

[0105] For example, the first coupling plate (155) may be formed in the shape of a square plate having a predetermined thickness. At this time, a fixing portion (155a) may be formed on the first coupling plate (155) to fix the coupling with the second coupling plate (255). For example, the fixing portion (155a) may be formed in the shape of a hole and may be coupled with a fixing portion (255a) in the shape of a protrusion formed on the second coupling plate (255).

[0106] Meanwhile, a first wire frame (156) may be arranged on the first coupling plate (155). The first wire frame (156) may be coupled to the first coupling plate (155) so as to enable linear reciprocating movement. For example, a guide groove may be formed on the first coupling plate (155) to guide linear movement of the first wire frame (156), and the first wire frame (156) may be arranged in the guide groove.

[0107] Meanwhile, a manipulation wire (130) is coupled to the first wire frame (156). For example, the first wire frame (156) may be provided with a manipulation wire (130) coupled to one side in the longitudinal direction and capable of linear reciprocating movement along the longitudinal direction.

[0108] Meanwhile, the first wire frame (156) arranged on the first coupling plate (155) can be coupled with the second wire frame (256) arranged on the second coupling plate (255). For example, the first wire frame (156) may have a frame coupling portion (156b) formed on the other side in the longitudinal direction. The frame coupling portion (156b) may have a shape in which a plurality of ribs and grooves are alternately formed. The frame coupling portion (156b) may be formed in a shape corresponding to the frame coupling portion (256b) of the second wire frame (256). That is, the first wire frame (156) and the second wire frame (256) may be coupled in an interlocked state.

[0109] The first wire frame (156) can be placed between the first coupling plate (155) and the second coupling plate (255) while being coupled to the second wire frame (256). Accordingly, the first wire frame (156) and the second wire frame (256) can reciprocate linearly along the longitudinal direction of the endoscope (1) while being coupled to each other.

[0110] Through this, the manipulation wire (130) coupled to the first wire frame (156) and the bending wire (230) coupled to the second wire frame (256) can move in conjunction with each other, and the insertion tube (220) can be bent according to the manipulation of the manipulation knob (120).

[0111] Meanwhile, the first coupling plate (155) may further be provided with a lock pin (155b), a spring (155c), and a lock holder (155d).

[0112] The locking pin (155b) is placed on the first coupling plate (155) and can be accommodated in a fixing groove (156a) formed on the first wire frame (156) by reciprocating movement. The locking pin (155b) may include a head portion accommodated in a locking holder (155d) to be described later and a pin portion that passes through the locking holder (155d) and is accommodated in the fixing groove (156a). At this time, the head portion may be formed in a shape having a larger diameter than the pin portion. Therefore, the movement range of the locking pin (155b) may be limited by the locking holder (155d).

[0113] Meanwhile, the locking pin (155b) can be pressed toward the first wire frame (156) via the spring (155c). Specifically, the head of the locking pin (155b) can come into contact with one end of the spring (155c). Accordingly, the locking pin (155b) can be elastically supported by the spring (155c).

[0114] The other end of the spring (155c) can be fixed to the first connecting body (151).

[0115] The lock holder (155d) is detachably coupled to the first coupling plate (155) and can accommodate a lock pin (155b) so as to be reciprocally movable.

[0116] The lock holder (155d) is coupled with the lock lever (155e) and can be reciprocally moved by the operation of the lock lever (155e). At this time, the lock holder (155d) can be detachably coupled to the first coupling plate (155) according to the operation of the lock lever (155e).

[0117] The lock holder (155d) may be formed to accommodate a lock pin (155b) therein. For example, the lock holder (155d) may be formed in a cylindrical shape, with one longitudinal side formed to correspond to the size of the head portion of the lock pin (155b), and the other longitudinal side formed to correspond to the size of the pin portion of the lock pin (155b). That is, one longitudinal side of the lock holder (155d) may be formed to be larger than the diameter of the head portion, and the other longitudinal side may be formed to be smaller than the diameter of the head portion but larger than the diameter of the pin portion.

[0118] Accordingly, the pin portion of the lock pin (155b) can pass through the lock holder (155d) and be accommodated in the fixing groove (156a) of the first wire frame (156).

[0119] For example, a pair of lock holders (155d) may be provided, and a lever coupling portion that is coupled with a lock lever (155e) may be provided between the pair of lock holders (155d). The lever coupling portion (155e) may be formed in the shape of a long hole, and one side of the lock lever (155e) may be coupled thereto.

[0120] Meanwhile, the lock lever (155e) may be coupled with the lock holder (155d) on one side, while the other side may be exposed on the outside of the first coupling body (151). Accordingly, the user may hold and operate the lock lever (155e).

[0121] Meanwhile, a fixing groove (156a) may be formed in the first wire frame (156). The fixing groove (156a) may be formed on the opposite side of the side where the frame connecting portion (156b) is formed. That is, the frame connecting portion (156b) may be formed on the side facing the second wire frame (256), and the fixing groove (256a) may be formed on the opposite side.

[0122] The fixed groove (156a) can accommodate the locking pin (155b) according to the movement of the first wire frame (156). That is, when the first wire frame (156) is placed at a preset initial position, the fixed groove (156a) can be placed to face the locking pin (155b). At this time, when the user operates the locking lever (155e), the locking pin (155b) can move along the locking holder (155d), pass through the first coupling plate (155), and be inserted into the fixed groove (156a).

[0123] Therefore, according to the present invention, after replacing the insertion part (200), the user can turn the operation knob (120) while operating the lock lever (155e), and accordingly, the first wire frame (156) can move linearly (slide) to find the position where the lock pin (155b) and the fixing groove (156a) are combined.

[0124] As a result, the present invention has the effect of finding the initial position of the operating wire (130) and maintaining it after replacing the insertion part (200).

[0125]

[0126] The insertion part (200) is detachably connected to the operation part (100), and at least a portion of it is inserted into the human body to enable photographing the inside of the human body.

[0127] The insertion unit (200) includes a lighting photographing unit (210), an insertion tube (220), a bending wire (230), and a second coupling unit (250). At this time, the lighting photographing unit (210) is arranged on one side in the longitudinal direction of the insertion unit (200), and the second coupling unit (250) is arranged on the other side. In addition, the lighting photographing unit (210) and the second coupling unit (250) can be connected by the insertion tube (220), and at least a portion of the bending wire (230) can pass from the second coupling unit (250) to the insertion tube (220).

[0128]

[0129] Meanwhile, FIG. 15 is a perspective view illustrating an illumination photographing unit in an endoscope according to one embodiment of the present invention, FIG. 16 is a perspective view illustrating an internal structure of an illumination photographing unit in an endoscope according to one embodiment of the present invention, and FIG. 17 is a drawing illustrating a heat sink in an endoscope according to one embodiment of the present invention.

[0130] The lighting photography section is described below with reference to Figures 15 to 17.

[0131] The lighting photography unit (210) is inserted into the human body to irradiate light into the human body and photograph the inside of the human body.

[0132] The lighting shooting unit (210) includes a lighting shooting unit body (211), a lighting module (212), and a shooting module (213).

[0133] The lighting photographing unit body (211) forms the exterior of the lighting photographing unit (210) and is configured to be inserted into the human body. For example, the lighting photographing unit body (211) has a lighting module (212) and a photographing module (213) arranged on one longitudinal side, and the other longitudinal side is open so that it can be connected to an insertion tube (220).

[0134] The lighting module (212) can be coupled to the end cap (217). The lighting module (212) can irradiate light. The lighting module (212) can be equipped with a lighting lens (212a) that can receive power and irradiate light. For example, the lighting lens (212a) can be an LED (Light Emitting Diode).

[0135] Meanwhile, in the present embodiment, multiple illumination lenses (212a) may be provided. Specifically, an even number of illumination lenses (212a) may be provided in the present embodiment. For example, a pair of illumination lenses (212a) may be arranged symmetrically along the axis. This prevents asymmetry in the illumination reflected on an object at close range and prevents gaps in the illumination.

[0136] At this time, in this embodiment, a pair of lighting lenses (212a) may be symmetrically arranged with respect to the photographing module (213). That is, in this embodiment, a pair of lighting lenses (212a) may be symmetrically arranged, and the photographing module (213) may be arranged on the axis of symmetry.

[0137] At this time, a pair of lighting lenses (212a) may have different correlated color temperatures (CCT). Through this, a target wavelength distribution of light can be created.

[0138] In addition, the lighting module (212) may further include a lighting support member (212b) that supports a pair of lighting lenses (212a). The lighting support member (212b) may be formed in a flat shape, and the tip portion may be formed to be symmetrically extended in pairs and bent upwards. A pair of lighting lenses (212a) may be coupled to the pair of bent extension members.

[0139] For example, the lighting support member (212b) may be a flexible printed circuit board (PCB). An image sensor may be mounted on the flexible PCB. By utilizing multiple lighting lenses (212a) as the lighting member, not only is it easy to control the illuminance, but the amount of light emitted can be significantly increased compared to conventional halogen lamps, etc., thereby further improving the clarity of the image obtained through the image sensor.

[0140] Meanwhile, the photographing module (213) can photograph the inside of the human body. The photographing module (213) can receive power to photograph images of the inside of the human body and transmit the photographed image data. For example, the photographing module (213) may include a camera (213a) and an image processing unit (213b). In this case, the camera (213a) may be placed at one end (the tip) of the lighting photographing unit (210) in the longitudinal direction, and the image processing unit (213b) may be coupled with the camera (213a) to process images received from the camera.

[0141] Through this, the endoscope (1) of the present invention can irradiate light through the lighting module (212) and photograph the inside of the human body through the photographing module (213) while inserted into the human body.

[0142] A heat sink (214) can be placed inside the lighting and photography unit body (211). The heat sink (214) can be combined with a lighting module (212) and / or a photography module (213).

[0143] The heat sink (214) includes a heat sink body (214a), a lighting contact portion (214b), a shooting module receiving hole (214c), and a heat transfer portion (214d).

[0144] A heat sink body (214a) may be provided to transfer heat. The heat sink body (214a) may be formed of a material capable of transferring heat. For example, the heat sink body (214a) may be formed of a metal material.

[0145] The heat sink body (214a) is formed in a flat shape, and one end in the longitudinal direction (long axis direction) is connected to the lighting contact part (214b), and a heat transfer part (214d) is connected to both sides in the width direction (short axis direction), and a shooting module receiving hole (214c) can be formed inside.

[0146] The lighting contact portion (214b) is formed to extend from one end of the longitudinal direction of the heat sink body (214a) and can be in contact with the lighting module (212). The lighting contact portion (214b) can be formed to correspond to the shape of the lighting support portion (212b). For example, the lighting contact portion (214b) can be formed to extend from the longitudinal end of the heat sink body (214a) and then be formed to be bent and extended upward. Accordingly, the lighting contact portion (214b) can be in contact with the lighting support portion (212b). Through this, the heat generated in the lighting module (212) can be transferred to the heat sink (214) through the lighting contact portion (214b).

[0147] The photographing module receiving hole (214c) is formed in the heat sink body, and the photographing module (213) can be received therein so as to be penetrable. For example, the photographing module receiving hole (214c) can be formed in the shape of a rectangular hole, and a part of the image processing unit (213b) can pass therethrough, and a part of the image processing unit (213b) can be in contact therewith. Through this, heat generated in the photographing module (213) can be transferred to the heat sink (214).

[0148] Meanwhile, a printed circuit board (218) may be in contact with the other longitudinal side of the heat sink (214). The printed circuit board (218) may control the lighting module (212) and / or the photographing module (213). A circuit capable of controlling the lighting module (212) and / or the photographing module (213) may be mounted on the printed circuit board (218). Through this, heat generated in the circuit may be transferred to the heat sink (214).

[0149] The heat transfer portion (214d) may be formed to extend from both ends in the width direction (short axis direction) of the heat sink body (214a). At this time, the width of the heat sink body (214a) is smaller than the diameter of the heat sink chassis (215), and the combined width of the heat sink body (214a) and the heat transfer portion (214d) may be equal to or slightly larger than the diameter of the heat sink chassis (215). Therefore, the heat transfer portion (214d) may be in contact with the heat sink chassis (215). Accordingly, the heat of the heat transfer portion (214d) may be transferred to the heat sink chassis (215).

[0150] The heat dissipation chassis (215) is provided to surround the outer surface of the lighting and photography body (211), and can be in contact with the heat dissipation plate (214) to disperse the heat of the lighting module (212) and / or the photography module (213).

[0151] For example, the heat dissipation chassis (215) may be a coil pipe made of spring material and may dissipate heat generated from the lighting module (212) and / or the shooting module (213).

[0152] Meanwhile, in another embodiment of the present invention, the heat dissipation chassis (215) and the lighting photography body (211) may be formed integrally.

[0153] Meanwhile, the lighting photographing unit (210) may further include a heat blocking plate (216) that is arranged on one side of the length of the lighting photographing unit (210) and blocks heat generated from the lighting module (212).

[0154] The heat shield (216) is coupled to the end cap (217) and can be placed between the end cap (217) and the lighting module (212) along the length direction of the lighting photographing unit (210).

[0155] The heat shield (216) may include a shield body (216a) formed in a semicircular shape, a lighting cover part (216b) symmetrically arranged on the shield body (216a) and arranged to face the lighting module (212), and a camera cover part (216c) arranged on the symmetrical axis of the pair of lighting cover parts (216b) and arranged at a position facing the photographing module (213).

[0156] The heat blocking plate (216) can prevent heat generated from the lighting module (212) from being transmitted to the human body. At this time, the heat blocking plate (216) can be formed of a material that allows light to pass through.

[0157] An end cap (217) is provided at the longitudinal end (tip) of the lighting photographing unit (210). The end cap (217) has a cylindrical structure and is coupled to the end of the insertion unit (200). At this time, a lighting module (212) and a photographing module (213) can be coupled to the end cap (217). In addition, a heat shielding plate (216) can be coupled to the end cap (217).

[0158] The end cap (217) may be provided with a plurality of light-emitting windows. The light-emitting windows are made of a glass or transparent material plate and have a structure capable of transmitting light emitted from the lighting module (212) to the outside.

[0159] Meanwhile, the end cap (217) may be formed with a plurality of channel receiving tubes into which channels (240) are inserted. Each channel receiving tube has a cylindrical shape with an empty interior and is formed to have an inner diameter corresponding to the outer diameter of each channel (140) to be inserted. In addition, an O-ring may be provided inside to prevent leakage of supplied water or air, etc.

[0160] Meanwhile, the lighting photography unit (210) may be equipped with a connection terminal. The connection terminal may be equipped to correspond to the connection terminal of the operation unit (100). That is, the operation unit (100) may be equipped with a male terminal, and the insertion unit (200) may be equipped with a female terminal.

[0161]

[0162] Meanwhile, FIGS. 18 and 19 are drawings illustrating an insertion tube in an endoscope according to one embodiment of the present invention, FIG. 20 is a drawing illustrating a first bending member in an endoscope according to one embodiment of the present invention, and FIG. 21 is a drawing illustrating a second bending member in an endoscope according to one embodiment of the present invention.

[0163] Referring to FIGS. 18 to 21, the insertion tube (220) is described as follows.

[0164] The insertion tube (220) connects the lighting photographing unit (210) and the second connecting unit (250), and can be bent according to the operation of the operating unit (100).

[0165] Specifically, the insertion tube (220) can be bent according to the movement of the bending wire (230).

[0166] Meanwhile, the insertion tube (220) can accommodate multiple channels (240) and terminals inside.

[0167] The insertion tube (220) may include a bending portion (221), an adapter (222), a coil spring (223), and an insertion tube (224). At this time, the bending portion (221) may be placed between a pair of adapters (222), and one of the pair of adapters (222) may be coupled to the lighting photographing portion (210), and the other may be coupled to the second coupling portion (250).

[0168] The bending portion (221) can be configured to bend according to the movement of the bending wire (230).

[0169] The bending portion (221) includes a first bending member (2211) and a second bending member (2212) that are rotated relative to each other. At this time, the bending portion (221) may have a plurality of first bending members (2211) and second bending members (2212) alternately arranged. In addition, as the number of the first bending members (2211) and the second bending members (2212) increases, the overall length of the bending portion (221) may increase. Therefore, the number of the first bending members (2211) and the second bending members (2212) may be adjusted according to the usage conditions of the endoscope (1) to select an appropriate length of the insertion tube (220).

[0170] The first bending member (2211) and the second bending member (2212) may be provided to rotate relative to each other.

[0171] The first bending member (2211) includes a first bending member body (2211a), a concave portion (2211b), and a wire penetration hole (2211c).

[0172] The first bending member body (2211a) may be formed in an overall circular shape. At this time, the longitudinal thickness of the first bending member body (2211a) may be repeatedly changed at predetermined angular intervals along the circumferential direction. For example, the first bending member body (2211a) may be formed in a shape in which the thickness decreases as it moves away from the concave portion (2212b) along the circumferential direction.

[0173] Meanwhile, in the present embodiment, the first bending member body (2211a) may be formed of a resin material. For example, the first bending member body (2211a) may be formed of a plastic material. Such a material has the advantage of improving processability and reducing production costs.

[0174] At this time, a concave portion (2211b) may be formed in the first bending member body (2211a) so that it can be rotated relative to the second bending member (2212).

[0175] The concave portions (2211b) may be formed in four numbers on the first bending member body (2211a), and a pair may be formed on one end in the longitudinal direction of the first bending member body (2211a), and a pair may be formed on the other end in the longitudinal direction of the first bending member body (2211a). At this time, one pair formed on one end and one pair formed on the other end of the first bending member body (2211a) may be alternately arranged with a phase difference of 90 degrees from each other along the circumferential direction. That is, the concave portions (2211b) may be arranged with a phase difference of 180 degrees from each other along the circumferential direction when a pair is formed on an end in the same direction, but may be arranged with a phase difference of 90 degrees from each other when a pair is formed on an end in the other direction.

[0176] The concave portion (2211b) may be formed by recessing from the longitudinal end of the first bending member body (2211a). At this time, the concave portion (2211b) may be formed by recessing in an arch shape having a predetermined curvature from the longitudinal end of the first bending member body (2211a).

[0177] The concave portion (2211b) can accommodate at least a portion of the convex portion (2212b) of the second bending member (2212) described later. In addition, the concave portion (2211b) and the convex portion (2212b) can be rotated relative to each other. At this time, the concave portion (2211b) and the convex portion (2212b) can come into contact with each other.

[0178] Therefore, when the first bending member body (2211a) and the second bending member body (2212a) are coupled, the gap between the first bending member body (2211a) and the second bending member body (2212a) may not be constant. That is, when the first bending member (2211) and the second bending member (2212) are coupled, the concave portion (2211b) and the convex portion (2212b) may come into contact with each other, and the gap between the first bending member body (2211a) and the second bending member body (2212a) may increase as the distance from the concave portion (2211b) and the convex portion (2212b) in the circumferential direction increases.

[0179] Through this gap, a range in which the first bending member (2211) and the second bending member (2212) can be rotated relative to each other can be provided according to the movement of the bending wire (230).

[0180] Meanwhile, the first bending member body (2211a) may have a radial thickness that increases at a location where the concave portion (2211b) is formed. For example, the first bending member body (2211a) may be formed to have a constant outer diameter on a concentric circle, but the inner diameter at a location where the concave portion (2211b) is formed may be formed to decrease. That is, the first bending member body (2211a) may be formed in a form where the inner circumferential surface at a location where the concave portion (2211b) is formed protrudes radially inward.

[0181] In addition, at the location where the concave portion (2211b) is formed, a wire penetration hole (2211c) may be formed along the longitudinal direction. That is, the wire penetration hole (2211c) may be a hole formed in a circular shape at a location protruding radially inward from the inner peripheral surface of the first bending member body (2211a).

[0182] At this time, a bending wire (230) can pass through the wire penetration hole (2211c).

[0183]

[0184] The second bending member (2212) includes a second bending member body (2212a), a convex portion (2212b), and a wire penetration hole (2212c).

[0185] The second bending member body (2212a) may be formed in an overall circular shape. At this time, the longitudinal thickness of the second bending member body (2212a) may be repeatedly changed at 180-degree intervals along the circumferential direction. For example, the second bending member body (2212a) may be formed such that the longitudinal thickness decreases as it moves away from the position where the convex portion (2212b) is formed along the circumferential direction.

[0186] Meanwhile, in the present embodiment, the second bending member body (2212a) may be formed of a resin material. For example, the second bending member body (2212a) may be formed of a plastic material. Such a material has the advantage of improving processability and reducing production costs.

[0187] At this time, a convex portion (2212b) may be formed on the second bending member body (2212a) so that it can rotate relative to the first bending member (2211).

[0188] The convex portions (2212b) may be formed in four numbers on the second bending member body (2212a), and a pair may be formed on one end in the longitudinal direction of the second bending member body (2212a), and a pair may be formed on the other end in the longitudinal direction of the second bending member body (2212a). At this time, one pair formed on one end and one pair formed on the other end of the second bending member body (2212a) may be alternately arranged with a phase difference of 90 degrees from each other along the circumferential direction. That is, the convex portions (2212b) may be arranged with a phase difference of 180 degrees from each other along the circumferential direction when a pair is formed on an end in the same direction, but may be arranged with a phase difference of 90 degrees from each other when a pair is formed on an end in the other direction.

[0189] The convex portion (2212b) may be formed to protrude from the longitudinal end of the second bending member body (2212a). At this time, the convex portion (2212b) may be formed to correspond to the shape of the concave portion (2211b). For example, the convex portion (2212b) may be formed to protrude in an arch shape having a predetermined curvature from the longitudinal end of the second bending member body (2212a), and the protruding curvature of the convex portion (2212b) and the sunken curvature of the concave portion (2211b) may be the same.

[0190] With this configuration, at least a portion of the convex portion (2212b) can be accommodated in the concave portion (2211b). In addition, the convex portion (2212b) and the concave portion (2211b) can be rotated relative to each other while making surface contact with each other.

[0191] Meanwhile, the second bending member body (2212a) may have a larger radial thickness at a position where the convex portion (2212b) is formed. For example, the second bending member body (2212a) may be formed to have a constant outer diameter on a concentric circle, but the inner diameter at a position where the convex portion (2212b) is formed may be formed to be smaller. That is, the second bending member body (2212a) may be formed in a form where the inner peripheral surface at a position where the convex portion (2212b) is formed protrudes radially inward.

[0192] In addition, at the location where the convex portion (2212b) is formed, a wire penetration hole (2212c) may be formed along the longitudinal direction. That is, the wire penetration hole (2212c) may be a hole formed in a circular shape at a location protruding radially inward from the inner peripheral surface of the second bending member body (2212a).

[0193] At this time, a bending wire (230) can pass through the wire penetration hole (2212c).

[0194] Meanwhile, the inner circumference of the convex portion (2212b) itself does not protrude inwardly in the radial direction, and may be formed to be the same as the maximum inner diameter of the second bending member body (2212a). That is, the inner circumference of the convex portion (2212b) does not protrude radially inwardly from the position where the wire through hole (2212c) is formed. Therefore, when the inner circumference of the second bending member (2212) is examined as a whole, it has a uniform inner circumference, but the inner circumference at the position where the wire through hole (2212c) is formed has a shape that protrudes radially inwardly.

[0195] In addition, a wire guide groove (2212d) may be formed on the inner surface of the convex portion (2212b). The wire guide groove (2212d) may be formed in an arc shape by being sunken into the inner surface of the convex portion (2212b), and the origin of the arc may be connected to the wire penetration hole (2212c).

[0196] Due to this shape, when the bending wire (230) moves with the position in contact with the second bending member body (2212a) as the fixed end, the range of movement of the free end can be limited by the wire guide groove (2212d). That is, the maximum angle of bending in each second bending member (2212) can be the central angle of the arc in the wire guide groove (2212d).

[0197] The adapter (222) can be connected to each of the longitudinal ends of the bending portion (221). At this time, the adapter (222) located on one longitudinal side can be connected to the lighting photographing portion (210), and the adapter (222) located on the other longitudinal side can be connected to the second connecting portion (250).

[0198] The adapter (222) includes an adapter body (2221), a spring coupling portion (2222), a wire receiving groove (2223), a wire through hole, and a bending member connecting portion (2225).

[0199] The adapter body (2221) is formed in an overall cylindrical shape, and a spring coupling portion (2222) may be formed on the outer surface of the adapter body (2221). In addition, a wire receiving groove (2223) may be formed along the longitudinal direction on the inner or outer surface of the adapter body (2221). In addition, a wire penetration hole may be formed along the longitudinal direction in the adapter body (2221). In addition, a bending portion connecting portion (2225) may be formed on the longitudinal end of the adapter body (2221).

[0200] The spring coupling portion (2222) can be coupled to the longitudinal end of the coil spring (2223). For example, the spring coupling portion (2222) can be formed in the form of a rib that protrudes along the circumferential direction from the outer surface of the adapter body (2221). Through this, the end of the coil spring (2223) can be supported by being caught on the spring coupling portion (2222).

[0201] Accordingly, a coil spring (223) can be placed between spring coupling portions (2222) formed on a pair of adapters (222), and the restoring force of the coil spring (223) can be applied to the pair of adapters (222).

[0202] The wire receiving groove (2223) may be formed along the length direction on the inner or outer surface of the adapter body (2221). For example, four wire receiving grooves (2223) may be formed along the length direction on the inner surface of the adapter body (2221).

[0203] At least a portion of the bending wire (230) can be accommodated in the wire receiving groove (2223). The bending wire (230) can be reciprocated along the length direction along the wire receiving groove (2223) according to the operation of the operating knob (120).

[0204] Although not shown, the wire through hole may be formed along the longitudinal direction of the adapter body (2221). At this time, at least a portion of the inner circumferential surface of the adapter body (2221) may be formed to protrude at a position where the wire receiving groove (2223) is formed, and the wire through hole may be formed at the protruding portion. That is, the wire through hole may be positioned at a position connected to the wire receiving groove (2223).

[0205] At this time, a bending wire (230) can pass through the wire penetration hole.

[0206] Meanwhile, the bending member connecting portion (2225) may be formed to be relatively rotatable and coupled with the bending member (221). That is, the bending member connecting portion (2225) may be formed with a convex or concave structure corresponding to the concave portion (2211b) of the first bending member (2211) or the convex portion (2212b) of the second bending member (2212) so as to be coupled therewith.

[0207] Meanwhile, the coil spring (223) may be arranged to surround the outer circumference of the bending portion (221). That is, the coil spring (223) may be arranged to surround the outer circumference of the first bending member (2211) and the second bending member (2212) when the first bending member (2211) and the second bending member (2212) are coupled.

[0208] On the other hand, the longitudinal ends of the coil spring (223) can be coupled with the adapter (222). The coil spring (223) can be elastically supported by the spring coupling portion (2222) of a pair of adapters (222). Therefore, when the bending portion (221) is bent according to the operation of the operation knob (120), the coil spring (223) can apply elastic force to restore it to its original position.

[0209] Meanwhile, an insertion tube (224) may be placed on the other longitudinal side of the insertion tube (220). The insertion tube (224) is formed in a bendable tube shape, and a bending wire (230), a channel (240), and a terminal may pass through the inside. Although not shown, a coil pipe may be provided within the insertion tube (224) to provide elasticity to the insertion tube (224).

[0210]

[0211] Meanwhile, the bending wire (230) receives the operating force of the operating knob (120) through the second connecting portion (250) and can bend the insertion tube (220) through a linear reciprocating motion.

[0212] The bending wire (230) may have one longitudinal end coupled to an adapter (222) or a lighting photographing unit (210), and the other longitudinal end coupled to a second wire frame (256). At this time, the bending wire (230) may pass through a wire through-hole of the adapter (222), a wire through-hole (2211c) of the first bending member (2211), and a wire through-hole (2212c) of the second bending member (2212).

[0213] Accordingly, on the side where the bending wire (230) is pulled, the first bending member (2211) and the second bending member (2212) can be relatively rotated so that the gap between the first bending member (2211) and the second bending member (2212) becomes narrow. On the other hand, on the side where the bending wire (230) is released (lengthened), the first bending member (2211) and the second bending member (2212) can be relatively rotated so that the gap between the first bending member (2211) and the second bending member (2212) becomes wide. Accordingly, the first bending member (2211) and the second bending member (2212) can form a bent shape. At this time, the bending angle between the first bending member (2211) and the second bending member (2212) can be limited according to the angle of the wire guide groove (2212d).

[0214]

[0215] Meanwhile, referring to FIGS. 4 to 13, the second coupling part (250) is detachably coupled to the first coupling part (150) of the operating part (100). The second coupling part (250) includes a second coupling part body (251), a second coupling part plate (255), and a second wire frame (256).

[0216] The second coupling body (251) may be coupled with the insertion tube (220) on one longitudinal side and coupled with the first coupling body (150) on the other longitudinal side. At this time, the longitudinal side of the second coupling body (251) may be coupled with the longitudinal side of the insertion tube (220), and the longitudinal side of the second coupling body (251) may be provided so as to be detachably coupled with the first coupling body (151).

[0217] The second connecting body (251) may be formed in a shape in which the diameter becomes narrower as it goes toward one end (tip) in the longitudinal direction. Consequently, the second connecting body (251) may be formed in a shape in which one end in the longitudinal direction can be connected to the insertion tube (224) of the insertion tube (220).

[0218] The other longitudinal side of the second coupling body (251) may be provided to be engaged with and coupled to the first coupling body (150). For example, the other longitudinal side of the second coupling body (251) may be in the form of a plate with three sides extending in the direction of the operating unit (100). As another example, the other longitudinal side of the second coupling body (251) may be in the form of a pair of plates extending in the direction of the operating unit (100). Accordingly, the second coupling body (251) may be coupled with the first coupling body (151) of the first coupling unit (150).

[0219] As a result, the second coupling body (251) can be fitted into the first coupling body (151). That is, the second coupling body (251) can be coupled with the first coupling body (151) to accommodate the first coupling plate (155), the first wire frame (156), the second coupling plate (255) and the second wire frame (256) therein.

[0220]

[0221] The second coupling plate (255) may be placed between a pair of surfaces facing each other among the second coupling body (251). The second coupling plate (255) may be placed on the inside of the second coupling body (251), but may be placed at a position facing the second coupling body (251).

[0222] Additionally, the second coupling plate (255) may be positioned facing the first coupling plate (155). At this time, when the first coupling plate (155) moves in accordance with the movement of the rack gear (154), it may be coupled with the second coupling plate (255).

[0223] For example, the second coupling plate (255) may be formed in the shape of a square plate having a predetermined thickness. At this time, a fixing portion (255a) may be formed on the second coupling plate (255) to fix the coupling with the first coupling plate (155). For example, the fixing portion (255a) may be formed in the shape of a protrusion and may be coupled with a hole-shaped fixing portion (155a) formed on the first coupling plate (155).

[0224] Meanwhile, a second wire frame (256) may be placed on the second coupling plate (255). The second wire frame (256) may be coupled to the second coupling plate (255) so as to enable linear reciprocating movement. For example, a guide groove may be formed on the second coupling plate (255) to guide linear movement of the second wire frame (256), and the second wire frame (256) may be placed on the guide groove.

[0225] Meanwhile, a bending wire (230) is coupled to the second wire frame (256). For example, the second wire frame (256) may be provided with a bending wire (230) coupled to one side in the longitudinal direction and capable of a linear reciprocating motion along the longitudinal direction.

[0226] Meanwhile, the first wire frame (156) may be coupled with the second wire frame (256). For example, the second wire frame (256) may have a frame coupling portion (256b) formed on the other side in the longitudinal direction. The frame coupling portion (256b) may have a shape in which a plurality of ribs and grooves are alternately formed. The frame coupling portion (256b) may be formed in a shape corresponding to the frame coupling portion (156b) of the first wire frame (156). That is, the first wire frame (156) and the second wire frame (256) may be coupled in an interlocked state.

[0227] An assembly in which the first wire frame (156) and the second wire frame (256) are combined can be placed inside the first coupling plate (155) and the second coupling plate (255). At this time, the first wire frame (156) can be accommodated in a guide groove formed in the first coupling plate (155), and the second wire frame (256) can be accommodated in a guide groove formed in the second coupling plate (255). Therefore, when the first coupling plate (155) and the second coupling plate (255) are combined, the assembly of the first wire frame (156) and the second wire frame (256) can be surrounded. That is, the assembly of the first wire frame (156) and the second wire frame (256) can reciprocate along the longitudinal direction (front-back direction), but can be restrained on the four sides (up, down, left, and right) by the first coupling plate (155) and the second coupling plate (255).

[0228] Through this, the manipulation wire (130) coupled to the first wire frame (156) and the bending wire (230) coupled to the second wire frame (256) can move in conjunction with each other, and the insertion tube (220) can be bent according to the manipulation of the manipulation knob (120).

[0229]

[0230] Although the present invention has been described in detail through specific examples, this is for the purpose of specifically explaining the present invention, and the present invention is not limited thereto, and it is clear that the present invention can be modified or improved by a person having ordinary knowledge in the relevant field within the technical spirit of the present invention.

[0231] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

Claims

1. An insertion unit having a lighting and photography unit and an insertion tube; and An operating unit including an operating knob and an operating wire that bends the insertion tube according to the operation of the operating knob; Including, The above operating part, A coupling part coupled with the insert part by rotation of a dial equipped with a rotational operation; Endoscopy including.

2. In paragraph 1, The above joint is, A first coupling plate that moves according to the rotation of the dial and is coupled to the insertion portion; Endoscopy that includes more.

3. In paragraph 2, The above joint is, A pinion gear that rotates in conjunction with the rotation of the above dial; A rack gear coupled with the first coupling plate and meshed with the pinion gear to reciprocate according to the rotation of the pinion gear; Endoscopy that includes more.

4. In paragraph 2, The above joint is, A first wire frame to which the above-described manipulation wire is coupled and which reciprocates along the first coupling plate; Endoscopy that includes more.

5. In paragraph 4, The above joint is, A locking pin disposed on the first coupling plate and accommodated in a fixed groove formed in the first wire frame according to reciprocating movement; Endoscopy that includes more.

6. In paragraph 5, The above joint is, A spring that presses the locking pin in the direction of the first wire frame; Endoscopy that includes more.

7. In paragraph 5, The above joint is, A lock holder coupled to the first coupling plate and configured to accommodate the lock pin so as to be reciprocally movable; Endoscopy that includes more.

8. In paragraph 2, The above insertion part, A second coupling plate detachably coupled to the first coupling plate; Endoscopy including.

9. In paragraph 2, The above insertion part, A second wire frame to which a banding wire is coupled and which is coupled to the first wire frame and reciprocates together with the first wire frame; Endoscopy including.

10. An insertion section having a lighting and photography section and an insertion tube; and An operating unit having an operating knob and bending the insertion tube according to the operation of the operating knob; Including, The above operating part, A dial equipped with a rotary operation; A pinion gear that rotates in conjunction with the rotation of the above dial; A rack gear that meshes with the pinion gear and moves reciprocally according to the rotation of the pinion gear; A coupling plate to which the above rack gear is coupled and which is detachably coupled with the insert; Endoscopy including.

11. In paragraph 10, The above insertion part, A bending wire that bends the above insertion tube; Including, The above operating part, An operating wire that moves the bending wire according to the operation of the operating knob; Includes, An endoscope characterized in that the bending wire and the operating wire are detachably connected according to the operation of the dial.

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