KR20230110100A - Detachable endoscope - Google Patents

Abstract

An embodiment of the present invention is an insertion unit having one end inserted into the body, an operation unit coupled to the other end of the insertion unit and operating the one end of the insertion unit to bend using an operation module, a first detachable module disposed inside the operation unit, and a second detachable module disposed inside the insertion unit and detachably coupled to the first detachable module, and a combination of the first detachable module and the second detachable module. The detachable endoscope includes a locking unit that locks each other and includes a first locking module disposed on the first detachable module and a second locking module disposed on the second detachable module so as to face the first locking module.

Description

Detachable endoscope {Detachable endoscope}

The present invention relates to a device, and more particularly to a detachable endoscope.

In general, surgery using an endoscope is to insert an endoscope equipped with a camera and surgical tools through a small hole without making a large incision in the body, and then perform surgery while examining the affected part of the patient through an image taken by the endoscope in the body. In particular, endoscopic surgery, which started from laparoscopic surgery, has advantages in that the incision site is smaller than that of open surgery, so the scar area is small and the recovery time of the patient after surgery is fast because there is little blood loss.

Conventional conventional endoscopes are composed of an insertion unit inserted into the human body and an operation unit controlling the insertion unit in one body, and a plurality of channels and guides are built-in through the inside of each unit. Accordingly, in line with the trend of strengthening the sanitary function of medical endoscopes, various types of detachable endoscopes are being used in which an insertion unit inserted into the body and a control unit for manipulating the insertion unit can be connected to each other or stored separately from each other.

A technical problem to be achieved by the present invention is to provide a detachable endoscope in which the insertion unit and the insertion unit can be easily coupled while preventing internal contamination of the operation unit by structurally separating the insertion unit and the operation unit.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above technical problem, a detachable endoscope according to an embodiment of the present invention includes an insertion unit having one end inserted into the body, an operation unit coupled to the other end of the insertion unit and operating the one end of the insertion unit to perform a bending motion using an operation module, a first detachable module disposed inside the operation unit, and a second detachable module disposed inside the insertion unit and detachably coupled to the first detachable module; It may include a locking unit that selectively locks a coupling between a first detachable module and the second detachable module, and includes a first locking module disposed on the first detachable module and a second locking module disposed on the second detachable module so as to face the first locking module.

In one embodiment of the present invention, the first detachable module may include an intermediate connection portion connected to a connection wire receiving force from the manipulation module, and the intermediate connection portion may include an intermediate connection body disposed rotatably around a longitudinal direction; and a guide protrusion protruding outward in a radial direction from one end of the intermediate connection body to guide rotational motion of the intermediate connection body.

In one embodiment of the present invention, the first locking module may selectively lock or unlock the movement of the guide protrusion by reciprocating linear motion along the longitudinal direction.

In one embodiment of the present invention, the first locking module may include a support part disposed on one surface of the first module body and having a spaced space extending along one direction, a locking body disposed to be reciprocally linearly movable in the spaced space, and a movable part having a locking groove formed concavely on a lower surface of the locking body.

In one embodiment of the present invention, the second locking module may include a pressing portion protruding toward the locking body when the operation unit and the insertion unit are coupled.

In one embodiment of the present invention, before coupling the insertion unit and the operation unit, the guide protrusion may be disposed in a state of being inserted into the lock groove.

In one embodiment of the present invention, when the insertion unit and the operation unit are coupled, the pressing unit presses the locking body in a coupling direction to move it rearward, so that the guide protrusion can be drawn out from the locking groove.

In the detachable endoscope according to the embodiments of the present invention, the insertion end connectors of the insertion unit and the intermediate connectors of the operation unit are automatically aligned in a parallel state prior to coupling of the two units using a pair of locking units arranged symmetrically, thereby enabling easy coupling between the insertion unit and the operation unit of the detachable endoscope.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the description of the present invention or the configuration of the invention described in the claims.

1 is a perspective view showing a detachable endoscope according to an embodiment of the present invention.
FIG. 2 is an enlarged perspective view illustrating an insertion unit and an operation unit of the detachable endoscope of FIG. 1 .
3 is a perspective view illustrating a detachable unit for coupling an insertion unit and an operation unit provided in a detachable endoscope according to an embodiment of the present invention.
4 is an exploded perspective view illustrating a first detachable module included in a detachable endoscope according to an embodiment of the present invention.
5 is an exploded perspective view illustrating a second detachable module included in a detachable endoscope according to an embodiment of the present invention.
6 is a perspective view illustrating a second detachable module provided in the detachable endoscope according to an embodiment of the present invention and the inside thereof.
7A is a perspective view showing a state before the intermediate connection portion and the insertion end connection portion are coupled to each other in a detachable endoscope according to an embodiment of the present invention, FIGS. 7B and 7C are perspective views showing a state before the completion of coupling between the intermediate connection portion and the insertion end connection portion, and FIG. 7D is a perspective view showing a state in which the intermediate connection portion and the insertion end connection portion are coupled.
Figure 8 is a perspective view showing a locked state by the locking unit provided in the detachable endoscope according to an embodiment of the present invention.
9 is a perspective view illustrating a state in which a detachable endoscope according to an embodiment of the present invention is unlocked by a locking unit provided therein.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and, therefore, is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled)" with another part, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another member interposed therebetween. In addition, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but it should be understood that the presence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof is not excluded in advance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a detachable endoscope according to an embodiment of the present invention. FIG. 2 is an enlarged perspective view illustrating an insertion unit and an operation unit of the detachable endoscope of FIG. 1 . 3 is a perspective view illustrating a detachable unit for coupling an insertion unit and an operation unit provided in a detachable endoscope according to an embodiment of the present invention. 4 is an exploded perspective view illustrating a first detachable module included in a detachable endoscope according to an embodiment of the present invention. 5 is an exploded perspective view illustrating a second detachable module included in a detachable endoscope according to an embodiment of the present invention. And, Figure 6 is a perspective view showing the second detachable module and its interior provided in the detachable endoscope according to an embodiment of the present invention.

Referring to FIGS. 1 to 6 , the detachable endoscope 10 may be a device for performing examinations and procedures on internal organs. At this time, the detachable endoscope 10 may include an operation unit 100, an insertion unit 200, a detachable unit 300, and locking units 600 and 700. In addition, the detachable endoscope 10 may further include a joint unit 400 electrically connected to an endoscope control and management system (not shown).

The operation unit 100 is a part that the user manipulates to control the operation of the insertion unit 200, and may include an operation module H. At this time, the manipulation module H may include a first manipulation unit H10 and a second manipulation unit H20.

A detachable insertion unit 200 may be selectively connected to one end (hereinafter, a first coupling end) of the operation unit 100 . In a state where the insertion unit 200 is coupled to the operation unit 100, the user can rotate the first operation unit H10 left and right to bend the front end (hereinafter referred to as the insertion end) of the insertion unit 200 in the vertical direction (direction A), or rotate the second operation unit H20 left and right to bend the insertion end in the left and right direction (direction B).

The first operation unit H10 includes a lower sprocket (not shown) and a lower chain (not shown) engaged therewith, and the second operation unit H20 includes an upper sprocket (not shown) and an upper chain (not shown) engaged therewith. In this case, when the first operation unit H10 and / or the second operation unit H20 rotates by the user's operation, the lower sprocket and / or the upper sprocket rotate, and this rotational movement can be converted into reciprocating linear motion by the lower chain and / or upper chain.

The lower chain and the upper chain may be connected to the inside of the insertion unit 200 through connection wires 101, 102, 103, and 104 and operation wires 201, 202, 203, and 204, which will be described later. At this time, the connection wires (101, 102, 103, 104) and the operation wires (201, 202, 203, 204) are selectively linearly moved by the reciprocating linear motion of the upper chain and/or the lower chain, so that the insertion end of the insertion unit 200 connected to the operation wires (201, 202, 203, 204) is bent in the vertical direction (direction A) or left-right direction (direction B). It can be. At this time, the user can adjust the bending amount of the insertion end by appropriately changing the rotation angle of the first manipulation unit H10 and/or the second manipulation unit H20.

At this time, the rotation of the lower sprocket and the upper sprocket may be performed by a user's manual rotation operation holding the first and second operation units H10 and H20 provided in the operation module H. However, the present invention is not limited thereto, and the lower sprocket and the upper sprocket may be formed by connecting a rotation shaft connected thereto with a driving means such as a motor, and using a separate remote control means for controlling the driving means.

The insertion unit 200 may be inserted into the body at one end (hereinafter referred to as an insertion end) during an endoscopic procedure. The insertion end may be an end opposite to an end coupled to the operation unit 100 (hereinafter referred to as a second coupled end) among both ends of the insertion unit 200 . An illumination capture unit having a light source for illuminating the body and an image sensor for capturing the body may be provided at the insertion end.

Insertion unit 200, the insertion end and its periphery, in one embodiment, may have a long and thin cylindrical shape with a hollow formed therein. At least a portion of the insertion unit 200 may be made of a flexible material so that the bending direction can be adjusted by the operation unit 100 as described above. For example, a cover forming the outer surface of the insertion unit 200 may be made of a flexible tube material such as a resin composition.

In addition, during an endoscopic procedure, a separate procedure equipment may be inserted into the insertion unit 200 through an insertion structure (not shown) for connection provided in the detachable endoscope 10 . Such surgical equipment passes through an inner passage (not shown) of the insertion unit 200 and moves to the outside of the insertion end through the above-mentioned opening to perform a procedure on the duodenum or the like.

Meanwhile, the operation unit 100 may include a control switch and a control button for injecting or discharging liquid and gas used during endoscopic procedures. A part of the insertion unit 200 (for example, a second coupling end or a peripheral portion thereof) detachably coupled to the first coupling end of the manipulation unit 100 through the detachable unit 300 may be provided with an entrance (not shown) through which a surgical tool such as an endoscopic treatment tool having a clip enters and exits the insertion unit 200 and a cap (not shown) that opens and closes the insertion unit 200.

As exemplarily shown in FIG. 2 , a support cover may be provided at the first coupling end of the operation unit 100 . At this time, an air supply channel (C30) for supplying air, a water supply channel (C20) for supplying water, and a terminal terminal (C40) electrically connected to the lighting photographing unit provided at the insertion end may be formed to pass through the support cover.

The detachable unit 300 may detachably connect the control unit 100 and the insertion unit 200 . At this time, the detachable unit 300 may include a first detachable module 300a and a second detachable module 300b that are detachably coupled to each other. The operation unit 100 and the insertion unit 200 may be connected or separated by coupling or disengaging the first detachable module 300a and the second detachable module 300b.

The first detachable module 300a is disposed to be inserted into the control unit 100, and may include a first module body 310 and an intermediate connection portion. In addition, the second detachable module 300b is disposed to be inserted into the insertion unit 200, and may include a second module body 330 and an insertion end connecting portion. At this time, although not shown in the drawings, for convenience of description, the intermediate connection portion will be referred to as reference number '320' and the insertion end connection portion will be referred to as reference number '340'.

On the other hand, although not shown in the drawings, in the case of a detachable endoscope according to other embodiments of the present invention, the first detachable module 300a may further include an 'additional intermediate connector (not shown)' inserted through the center of the first module body 310 in a state surrounded by two pairs of intermediate connectors 320. In addition, the second detachable module 300b may further include an 'additional insertion end connection part (not shown)' inserted through the center of the second module body 330 in a state surrounded by the two pairs of insertion end connection parts 340.

At this time, when the first detachable module 300a and the second detachable module 300b are coupled, the additional intermediate connection portion is coupled to the additional insertion end connection portion, and the coupling method may be the same as or similar to that of the intermediate connection portion 320 and the insertion end connection portion 340. In this case, when the rotational motion of the intermediate connector 320 is locked, the additional intermediate connector also becomes unable to rotate, making it impossible to engage with the additional insertion end connector. Hereinafter, an embodiment in which the detachable endoscope 10 includes only the intermediate connector 320 and the insertion end connector 340 will be mainly described.

The first module body 310 may be a housing formed with a middle hollow portion penetrating both ends along the longitudinal direction (Y-axis direction). The intermediate hollow portion may be disposed on the same line in the longitudinal direction (Y-axis direction) and communicate with through-holes for connection (111, 112, 113, and 114 in FIG. 2) provided in the support cover.

The intermediate connection unit 320 may connect the operation module H and the insertion end connection unit 340 via the connection wires 101, 102, 103, and 104. In this case, the intermediate connection unit 320 may include two pairs of intermediate connection bodies 311, 312, 313, and 314, and connection ends E1, E2, E3, and E4 respectively provided thereto.

As an example, the intermediate connection bodies 311, 312, 313, and 314 may be bars having an elongated cylindrical shape. The intermediate connection bodies 311 , 312 , 313 , and 314 may be inserted through the middle hollow portion of the first module body 310 . At this time, both ends of the intermediate connection bodies 311, 312, 313, and 314 may be disposed in a state in which at least partially protrudes from the outside of the first module body 310.

The connecting ends E1 , E2 , E3 , and E4 may be detachably connected to engaging members 331 , 332 , 333 , and 334 to be described later. The connection ends E1, E2, E3, and E4 may be disposed at one end of the intermediate connection bodies 311, 312, 313, and 314, and one end of the intermediate connection bodies 311, 312, 313, and 314 may be an end facing the insertion unit 200. The other ends of the intermediate connection bodies 311, 312, 313, and 314 are connected to one end of the connection wires 101, 102, 103, and 104, and at this time, the other ends of the connection wires 101, 102, 103, and 104 may be connected to a lower chain or an upper chain provided in the first operation unit H10 or the second operation unit H20.

In this case, as the user operates the first operating unit H10 or the second operating unit H20, the rotational motion of the lower sprocket or the upper sprocket is converted into reciprocating linear motion by the lower chain or upper chain, and then the lower chain or the connecting wires 101, 102, 103, and 104 connected to the upper chain may perform reciprocating linear motion. Accordingly, the intermediate connection bodies 311, 312, 313, 314 and the connection ends E1, E2, E3, and E4 connected to the connection wires 101, 102, 103, and 104 are connected to the longitudinal direction (Y-axis direction). Reciprocating linear motion can be performed along a direction parallel to the direction.

Connection ends (E1, E2, E3, E4) may be formed with a larger outer diameter than the outer diameter of the intermediate connection body (311, 312, 313, 314). At this time, between the connection ends (E1, E2, E3, E4) and the connection wires (101, 102, 103, 104), the intermediate connection body (311, 312, 313, 314) is inserted through the elastic member (S) can be disposed. This elastic member (S) is compressed and deformed as the intermediate connection bodies 311, 312, 313, and 314 are pressed by the insertion end connector 340 during the coupling process, and the intermediate connection bodies 311, 312, 313, 314 can generate an elastic restoring force to return to the original position. The elastic member (S) may be composed of, for example, a coil spring.

The connection ends (E1, E2, E3, E4) are guide projections (T) that guide the rotation of the insertion grooves (321, 322, 323, 324) into which the engaging members (331, 332, 333, 334) are inserted and the intermediate connection body (311, 312, 313, 314) when the insertion unit 200 and the control unit 100 are coupled. 1, T2, T3, T4) may be provided.

Insertion grooves (321, 322, 323, 324) from the connection end (E1, E2, E3, E4), may be formed concave in the longitudinal direction (eg, -Y axis direction). The insertion grooves 321, 322, 323, and 324 may have a through portion N formed by penetrating the connection ends E1, E2, E3, and E4 in a direction (X-axis direction) perpendicular to the longitudinal direction (Y-axis direction). The insertion grooves 321, 322, 323, and 324 may be partially communicated with the outside through the through portion N. In addition, the engaging members 331 , 332 , 333 , and 334 may be engaged in the insertion grooves 321 , 322 , 323 , and 324 through the penetrating portion N and may be fixed.

Guide protrusions (T1, T2, T3, T4) can guide the rotational movement of the intermediate connection body (311, 312, 313, 314). Guide protrusions (T1, T2, T3, T4) from the connecting ends (E1, E2, E3, E4) of the intermediate connection body (311, 312, 313, 314), may be formed to protrude toward the outside in the radial direction.

The guide protrusions T1, T2, T3, and T4 are pulled when the insertion end connecting portion 340 is moved backward (in the -Y axis direction) by manipulation of the operation module H after the engaging members 331, 332, 333, and 334 are inserted into the insertion grooves 321, 322, 323, and 324, and the guide slits G1 formed in the first module body 310 , G2, G3, G4).

The guide slits (G1, G2, G3, G4) may include a 'curved part' that is curved and extended from one side of the first module body 310 to the other side, and a 'straight part' that is connected to the curved part and extends backward (-Y axis direction) in parallel with the longitudinal direction of the intermediate connection bodies 311, 312, 313 and 314.

When the insertion end connector 340 is pulled and moved backward (-Y-axis direction), the guide protrusions T1, T2, T3, and T4 first rotate along the curved portion, so that the intermediate connection bodies 311, 312, 313, and 314 are rotated by the guide protrusions T1, T2, T3, and T4 and can be guided to move backward (-Y-axis direction). Thereafter, as the insertion end connector 340 moves further backward (in the -Y axis direction), the guide protrusions T1, T2, T3, and T4 passing through the curved portion linearly move along the straight portion, and accordingly, the engaging members 331, 332, 333, and 334 are caught inside the insertion grooves 321, 322, 323, and 324, thereby forming the intermediate connection portion 320 and the insertion end connection portion. 340 is coupled so that it is not separated during an endoscopic procedure, and can operate integrally by manipulating the manipulation module (H).

As described above, the intermediate connection portion 320 may include two pairs of intermediate connection bodies 311, 312, 313, and 314. At this time, for convenience of description, the two pairs of intermediate connection bodies 311, 312, 313, 314 are referred to as the first intermediate connection body 311, the second intermediate connection body 312, and the third intermediate connection body 313 and the fourth intermediate connection body 314. In this case, two pairs of intermediate hollow portions are formed in the first module body 310, and the first, second, third, and fourth intermediate connection bodies 311, 312, 313, and 314 are respectively inserted into the intermediate hollow portions.

The first, second, third, and fourth intermediate connection bodies 311, 312, 313, and 314 are within the first module body 310, in the width direction (X-axis direction) and/or in the height direction (Z-axis direction). It can be arranged to be symmetrical with each other. Specifically, the first intermediate connection body 311 may be disposed symmetrically in the second intermediate connection body 312 and the width direction (X-axis direction). At this time, the first intermediate connection body 311 is symmetrically disposed with the third intermediate connection body 313 in the height direction (Z-axis direction), and the third intermediate connection body 313 is the fourth intermediate connection body 314 and the width direction (X-axis direction). It can be symmetrically arranged. Accordingly, the first intermediate connection body 311 and the second intermediate connection body 312 are disposed side by side as a pair on the upper side inside the first module body 310, and the third intermediate connection body 313 and the fourth intermediate connection body 314 may be disposed side by side as a pair on the lower side inside the first module body 310.

The connection ends of the intermediate connection bodies 311, 312, 313, and 314, that is, the connection end E1, the second connection end E2, the third connection end E3, and the fourth connection end E4, may protrude outward from the first module body 310 toward the insertion unit 200. In addition, the other ends of the intermediate connection bodies 311, 312, 313, and 314 opposite to the first and second connection ends E1, E2, E3, and E4 are connected to the first connection wire 101, the second connection wire 102, the third connection wire 103, and the fourth connection wire 104 may be respectively connected. At this time, each of the intermediate connection bodies 311 , 312 , 313 , and 314 may be disposed in the first module body 310 while being penetrated into the elastic member S in the form of a coil spring.

As described above, the second detachable module 300b may include the second module body 330 and the insertion end connection portion 340 .

The second module body 330 may be a housing formed with an insertion end hollow portion penetrating both ends along the longitudinal direction (Y-axis direction) and a second insertion end hollow portion.

The insertion end connecting portion 340 can transfer the force applied by the user's operation of the operation module H to the insertion end through the operating wires 201, 202, 203, 204 so that the insertion end of the insertion unit 200 can be bent. At this time, the insertion end connection portion 340 may include two pairs of insertion end connection bodies 341, 342, 343, and 344, and holding members 331, 332, 333, and 334 respectively provided thereon.

As an example, the insertion end connection bodies 341, 342, 343, and 344 may be bars having an elongated cylindrical shape. The insertion end connection bodies 341 , 342 , 343 , and 344 may be inserted into the insertion end hollow portion of the second module body 330 . At this time, both ends of the insertion end connecting bodies 341 , 342 , 343 , and 344 may be at least partially protruded out of the second module body 330 .

The insertion end connection bodies 341, 342, 343, and 344 may have rack gear parts L1, L2, L3, and L4 on one surface. The leg gear parts L1, L2, L3, and L4 may be disposed on a surface facing the center of the second module body 330 among the surfaces of the insertion end connection bodies 341, 342, 343, and 344. And, the leg gear parts L1, L2, L3, and L4 may extend along the longitudinal direction (Y-axis direction) of the insertion end connection bodies 341, 342, 343, and 344.

The engaging members 331, 332, 333, and 334 are inserted into the insertion grooves 321, 322, 323, and 324 formed in the connection ends E1, E2, E3, and E4, and can be detachably coupled.

The engaging members 331, 332, 333, and 334 may be disposed at one end of the insertion end connection bodies 341, 342, 343, and 344, and one end of the insertion end connection bodies 341, 342, 343, and 344 may be an end facing the operation unit 100. At this time, one end of the operation wire 201, 202, 203, 204 is connected to the other end of each of the insertion end connection bodies 341, 342, 343, and 344, and the other end of the operation wire 201, 202, 203, 204 may be connected to the inside of the insertion end.

As described above, the insertion end connection unit 340 may include two pairs of insertion end connection bodies 341 , 342 , 343 , and 344 . At this time, for convenience of explanation, the two pairs of inserted end-connected bodies will be referred to as the first inserted end-connected body 341, the second inserted-end connected body 342, the third inserted-end connected body 343, and the fourth inserted end-connected body 344. In this case, two pairs of insertion end hollow portions are formed in the second module body 330, and the first, second, third, and fourth insertion end connection bodies 341, 342, 343, and 344 can be respectively inserted into these two pairs of insertion end hollow portions.

The first, second, third, and fourth insertion end connection bodies 341, 342, 343, and 344 may be arranged symmetrically with each other in the width direction (X-axis direction) and/or height direction (Z-axis direction) within the second module body 330. Specifically, the first insertion end connection body 341 may be disposed symmetrically with the second insertion end connection body 342 in the width direction (X-axis direction). Accordingly, the leg gear portion L1 of the first insertion end connection body 341 and the leg gear portion L2 of the second insertion end connection body 342 may face each other.

In addition, the first insertion end connection body 341 may be symmetrically disposed with the third insertion end connection body 343 in the height direction (Z-axis direction), and the third insertion end connection body 343 may be symmetrically disposed with the fourth insertion end connection body 344 in the width direction (X-axis direction). Accordingly, the third leg gear part L3 of the third insertion end connection body 343 and the fourth rack gear part L4 of the fourth insertion end connection body 344 may be disposed to face each other.

Accordingly, the first insertion end connection body 341 and the second insertion end connection body 342 may be disposed side by side as a pair on the upper side inside the second module body 330, and the third insertion end connection body 343 and the fourth insertion end connection body 344 may be disposed side by side as a pair on the lower side inside the second module body 330.

The second module body 330 may include a pinion gear unit (P). At this time, the pinion gear unit P may include a first pinion gear P10 (see FIGS. 5 and 6) and a second pinion gear P20 (see FIGS. 5 and 6).

The first pinion gear P10 is disposed between the first insertion end connection body 341 and the second insertion end connection body 342, and may be meshed with the first leg gear part L1 of the first insertion end connection body 341 and the second rack gear part L2 of the second insertion end connection body 342. In this meshed state, the first pinion gear P10 may rotate about the first central axis perpendicular to the longitudinal direction (Y-axis direction) according to the user's operation of the operation module H.

The second pinion gear P20 is disposed between the third insertion end connection body 343 and the fourth insertion end connection body 344, and may be meshed with the third leg gear part L3 of the third insertion end connection body 343 and the fourth leg gear part L4 of the fourth insertion end connection body 344. In this meshed state, the second pinion gear P20 may rotate about the second central axis perpendicular to the longitudinal direction (Y-axis direction) according to the user's operation of the operation module H.

The second central axis to which the second pinion gear P20 is connected may be disposed on the same line as the first central axis to which the first pinion gear P10 is connected. At this time, the second central axis may be separated from the first central axis and configured to rotate independently of each other. Accordingly, while the first pinion gear P10 and the second pinion gear P20 rotate around the first central axis and the second central axis, they may not affect each other's rotation.

The second module body 330 may have a linear guide slit (G) extending along the longitudinal direction (Y-axis direction) on its upper and lower surfaces. The straight guide slit (G) is a pair of 'top straight guide slits' provided on the upper surface of the second module body 330 to face the first insertion end connection body 341 and the second insertion end connection body 342, and a pair of 'bottom straight guide slits' provided on the lower surface of the second module body 330 to face the third insertion end connection body 343 and the fourth insertion end connection body 344, respectively. can include

At this time, the first insertion end connection body 341 and the second insertion end connection body 342 each extend upward and have an 'upper guide protruding member I' inserted into the upper surface straight guide slit G. Can be provided. In addition, the third insertion end connection body 343 and the fourth insertion end connection body 344 extend downward, respectively, and have a 'lower guide protruding member I' inserted into the lower straight guide slit G. Can be provided. In this case, each guide protruding member (I) may guide the reciprocating and linear motion of the insertion end connection bodies (341, 342, 343, 344) by moving along the corresponding linear guide slits (G).

A first catching member 331, a second catching member 332, a third catching member 333, and a fourth catching member 334 may be provided at one end of each of the first, second, third, and fourth insertion end connecting bodies 341, 342, 343, and 344. In addition, the first, second, third, and fourth insertion end connection bodies 341, 342, 343, and 344 may have a first operation wire 201, a second operation wire 202, a third operation wire 203 or a fourth operation wire 204 connected to the other ends of each.

7A is a perspective view showing a state before the intermediate connection portion and the insertion end connection portion are coupled to each other in a detachable endoscope according to an embodiment of the present invention, FIGS. 7B and 7C are perspective views showing a state before the completion of coupling between the intermediate connection portion and the insertion end connection portion, and FIG. 7D is a perspective view showing a state in which the intermediate connection portion and the insertion end connection portion are coupled.

First, the first coupling end of the manipulation unit 100 and the second coupling end of the insertion unit 200 may be disposed to face each other. At this time, the first coupling end of the operation unit 100 and the second coupling end of the insertion unit 200 before being coupled may be in a 'parallel alignment state'.

Here, the term 'parallel alignment state' means that, when the detachable endoscope 10 is viewed from above based on the Z axis of the drawing, a virtual first reference line connecting the first connection end E1 and the second connection end E2 provided in the operation unit 100 [and connecting the third connection end E3 and the fourth connection end E4] is the first insertion end connection body 341 provided in the insertion unit 200. A virtual second reference line connecting one end and one end of the second insertion end connection body 342 (and connecting one end of the third insertion end connection body 343 and one end of the fourth insertion end connection body 344) and a state parallel to each other.

Next, the operation unit 100 and the insertion unit 200 may move in a direction parallel to the longitudinal direction (Y-axis direction) and approaching each other (hereinafter referred to as a coupling direction). Accordingly, the first engaging member 331, the second engaging member 332, the third engaging member 333, and the fourth engaging member 334 of the insertion unit 200 are connected to the first insertion groove 321 of the first connection end E1, the second insertion groove 322 of the second connection end E2, the third insertion groove 323 of the third connection end E3, and the fourth connection. It can be inserted into the fourth insertion groove 324 of the end portion E4.

Next, when the intermediate connection part 320 is moved backward (in the -Y axis direction) by the user's manipulation of the operation module (H), the connection ends (E1, E2, E3, E4) and the intermediate connection bodies (311, 312, 313, 314) are rotated backward (in the -Y axis direction) by the guide protrusions (T1, T2, T3, T4) and the guide slits (G1, G2, G3, G4). can move to As a result, the engaging members 331, 332, 333, and 334 are fixed to one end of the insertion grooves 321, 322, 323, and 324 in a hooked state, so that the insertion unit 200 and the operation unit 100 can be coupled.

As another embodiment, the first coupling end before coupling may be 'staggeredly aligned' with the second coupling end. Here, the 'staggered alignment state' may mean a state in which, when viewing the detachable endoscope 10 from above, one end of the first insertion end connecting body 341 and one end of the second insertion end connecting body 342 protrude at different distances from each other, and the first reference line and the above second reference line are not parallel but inclined. In this 'staggered alignment state', some of the insertion end connection bodies 341 , 342 , 343 , and 344 may protrude more toward the operation unit 100 than the rest of the insertion end connection bodies.

For example, one end of the first insertion end connection body 341 may protrude more toward the operation unit 100 than one end of the second insertion end connection body 342 and the other insertion end connection bodies 343 and 344. At this time, when the operation unit 100 and the insertion unit 200 move toward each other in the coupling direction (-Y axis direction), the first engaging member 331 of the insertion unit 200 may begin to be inserted into the first insertion groove 321 of the first connection end E1 before the second engaging member 332 and the other engaging members 333 and 334 due to the staggered alignment state. .

In this case, as the operation unit 100 and the insertion unit 200 move along the coupling direction, the first locking member 331 is first completely inserted into the first insertion groove 321, so that the above-described one end of the first insertion end connection body 341 can come into contact with the first connection end E1 facing it. At this time, the second insertion end connection body 342 and the other insertion end connection bodies 343 and 344 may be in a non-contact state with the connection ends E2, E3, and E4 facing them, or in a state in which only a portion of the engaging member is inserted into the insertion groove.

Next, the operation unit 100 and the insertion unit 200 are further moved in the coupling direction, and the first intermediate connection portion 320 in contact with the first insertion end connection body 341 is pressed, so that it can move backward (-Y axis direction). At this time, the connection ends E2 , E3 , and E4 facing the other insertion end connection bodies 342 , 343 , and 344 may sequentially contact each other based on the protruded distance toward the operation unit 100 . Thereafter, all of the insertion end connection bodies 341, 342, 343, and 344 come into contact with the connection ends E1, E2, E3, and E4 by the above-described pressurization, so that the first coupling end of the operation unit 100 and the second coupling end of the insertion unit 200 can be 'parallelly aligned'.

Then, the operation unit 100 and the insertion unit 200 are further moved in the coupling direction to maintain contact with the insertion end connection bodies 341, 342, 343, and 344, and the connection ends E1, E2, E3, E4 can be pressed backward (ie, -Y axis direction). Accordingly, the intermediate connection bodies 311, 312, 313, and 314 connected to the connection ends E1, E2, E3, and E4 rotate by the guide protrusions T1, T2, T3, and T4 and the guide slits G1, G2, G3, and G4, so that the engaging members 331, 332, 333, and 334 insert the insertion grooves 321, 322, 323, 324) in the inserted state, it can be fixed by being caught on one end of the insertion groove (321, 322, 323, 324). Accordingly, the insertion unit 200 may be coupled to the operation unit 100 .

Referring to FIGS. 7A to 7D , a method of combining the intermediate connection part 320 provided in the operation unit 100 and the insertion end connection part 340 provided in the insertion unit 200 may be as follows.

First, as described above, when the operation unit 100 and the insertion unit 200 in a state before coupling are disposed to face each other, the intermediate connector 320 and the insertion end connector 340 may be disposed to face each other. At this time, the intermediate connection bodies 311, 312, 313, 314 and the insertion end connection bodies 341, 342, 343, 344 may be disposed on the same line in the longitudinal direction (Y-axis direction), respectively, with the connection ends E1, E2, E3, and E4 facing the engaging members 331, 332, 333, and 334 (Fig. see 7a).

Then, by the user, the operation unit 100 and the insertion unit 200 can be moved to come closer along the coupling direction. In this case, the engaging members 331, 332, 333, and 334 may be inserted into the insertion grooves 321, 322, 323, and 324 formed at the connection ends E1, E2, E3, and E4. At this time, the engaging members (331, 332, 333, 334) may be provided with a 'locking protrusion' protruding toward the outer side of the radial direction of the engaging members (331, 332, 333, 334) at their front ends. When the engaging members 331, 332, 333, and 334 are inserted into the insertion grooves 321, 322, 323, and 324, the engaging protrusions may be accommodated inside the insertion grooves 321, 322, 323, and 324 (see FIG. 7B).

Next, as the operation unit 100 and the insertion unit 200 move further in the coupling direction (Y-axis direction), the ends of the insertion end connection bodies 341, 342, 343, and 344 may come into contact with the connection ends E1, E2, E3, and E4. At this time, the locking members 331, 332, 333, and 334 are formed to have a length equal to or shorter than the depth of the insertion grooves 321, 322, 323, and 324, so that the contact between the insertion end connection body 341, 342, 343, and 344 and the connection ends E1, E2, E3, and E4 may not be hindered.

Next, the user can operate the locking part 200a provided at the second coupling end of the insertion unit 200 to couple and fix the insertion unit 200 to the operation unit 100 .

As an example, the locking part 200a is rotatably installed at the second coupling end, and the first coupling end of the operation unit 100 may be inserted into the locking unit 200a. In this case, as the user rotates the locking part 200a in one direction, the locking part 200a and the first combined end may be screwed together and fixed. When the locking part 200a rotates, the insertion end connection bodies 341, 342, 343, and 344 are further moved in the coupling direction (-Y axis direction) while in contact with the connection ends E1, E2, E3, and E4, thereby moving the connection ends E1, E2, E3, and E4 and the intermediate connection bodies 311, 312, 313, and 314 to the rear (-Y axis direction). ) can be pressurized. As a result, the guide protrusions T1, T2, T3, and T4 rotate along the 'curves' of the guide slits G1, G2, G3, and G4 and move backward (-Y axis direction). By this rotation, while the locking members 331, 332, 333, and 334 are accommodated in the insertion grooves 321, 322, 323, and 324, the locking protrusions protrude to the outside of the insertion grooves 321, 322, 323, and 324 through the through portion N to be in a non-separable state (primary coupling state) (see FIG. 7C).

Next, in the 'primary coupling state', by the user's operation of the operation module (H), the intermediate connection portion 320 can be further pulled backward (-Y axis direction). In this case, the guide protrusions T1, T2, T3, and T4 pass through the 'curved parts' of the guide slits G1, G2, G3, and G4 and move backward (in the -Y-axis direction) along the 'straight parts'. 324) can be hooked on the inner end. As a result, the intermediate connection portion 320 and the insertion end connection portion 340 may be coupled to a state (secondary coupling state) in which they are not separated (see FIG. 7d ). Thereafter, in the 'secondary coupled state', when the user manipulates the manipulation module H, the intermediate connector 320 performs a reciprocating linear motion integrally with the insertion end connector 340 and operates, so that an endoscopic procedure can be performed.

Meanwhile, when removal or replacement of the insertion unit 200 is required, the operation unit 100 and the insertion unit 200 may be separated through the following separation process.

First, reference points (not shown) provided on the first manipulation unit H10 and the second manipulation unit H20 may be aligned in a line. When the first and second manipulation units H10 and H20 are aligned based on the reference point, the manipulation unit 100 and the insertion unit 200 may again be in a 'parallel alignment state' as described above.

Then, the locking state may be released by rotating the locking part 200a of the insertion unit 200 in a direction opposite to the locking direction. Accordingly, after unlocking of the locking unit 200a is completed, the user can separate the insertion unit 200 by moving it away from the operation unit 100 in a direction opposite to the coupling direction. Then, when replacing and assembling another insertion unit to the operation unit 100, it can be coupled to the operation unit 100 through the same or similar method to the above-described method.

Regarding the operating method of the detachable endoscope 10 according to the present invention, when the insertion unit 200 and the operation unit 100 are assembled in the above-mentioned 'second combined state', the intermediate connection part 320 is reciprocally linearly moved through the lower sprocket and the upper sprocket, and the lower chain and the upper chain connected to them, respectively, by the user's manipulation of the first operation unit H10 and/or the second operation unit H20. At this time, the insertion end connection unit 3 40) can perform reciprocating linear motion integrally with the intermediate connection portion 320 coupled through the engaging members 331, 332, 333, and 334 and the insertion grooves 321, 322, 323, and 324, respectively.

In this case, the first removing module 300a, the first, second, third and fourth connection wires 101, 102, 103, 104, connected to the lower body and the upper chain connected to the lower body and the upper chain connected to the lower body and the upper chain, and the upper body connected to the first operation unit H10 and the second operating unit H20, and the upper body connected to which the chains are connected to each other, respectively. It can be connected to the operation module H.

The first and second connection wires 101 and 102 connected to both ends of the upper chain connected to the upper sprocket can operate the insertion end of the insertion unit 200 in the left and right direction (direction B) in conjunction with the first and second operation wires 201 and 202 disposed side by side as a pair on the upper side of the inside of the insertion unit 200, based on the drawing.

The third and fourth connection wires 103 and 104 connected to both ends of the lower chain connected to the lower sprocket are connected to the third and fourth operation wires 203 and 204 disposed side by side in a pair on the lower side of the inside of the insertion unit 200, so that the insertion end of the insertion unit 200 can be bent upward and downward (direction A). However, the present invention is not limited thereto, and bending operations in the vertical direction (direction A) and the left-right direction (direction B) may be reversed according to the design of the endoscope 10 .

Figure 8 is a perspective view showing a locked state by the locking unit provided in the detachable endoscope according to an embodiment of the present invention. 9 is a perspective view illustrating a state in which a detachable endoscope according to an embodiment of the present invention is unlocked by a locking unit provided therein.

Referring to FIGS. 3 to 5 and FIGS. 8 and 9 , the locking units 600 and 700 may selectively lock or unlock the rotational movement of the intermediate connector 320 . At this time, the locking units 600 and 700 may include a first locking module 600 and a second locking module 700 .

The first locking module 600 may be disposed inside the control unit 100 . More specifically, the first locking module 600 may be provided in the first locking module 300a. At this time, the first locking module 600 may include a support part 610 and a moving part 620 .

The support part 610 may be disposed on one side (hereinafter referred to as a first side) of the first module body 310 . One end (hereinafter, a first end) of the support part 610 is coupled to the first side surface of the first module body 310, and the other end (hereinafter, a second end) of the support part 610 is the first module body 310. It may extend along the longitudinal direction (Y-axis direction). At this time, the support portion 610 has a first end coupled to the first module body 310, and a second end space Gm formed by being spaced apart from the first side surface of the first module body 310. Can be provided. The separation space Gm may extend from the first end of the support 610 toward the second end, and an opening may be formed between the second end and the first side surface.

The support part 610 may have a support hole Hm penetrating the second end in a vertical direction (Z-axis direction). At this time, the support hole Hm is disposed at the second end of the support part 610 and may extend along the longitudinal direction (Y-axis direction). An insertion protrusion 622 of a moving unit 620 to be described later may be inserted into and connected to the support hole Hm.

The moving unit 620 may perform a reciprocating linear motion along the longitudinal direction of the first module body 310 to selectively lock or unlock the guide protrusions T1, T2, T3, and T4. At this time, the moving unit 620 may include a locking body 621 and a locking groove (Lm).

The locking body 621 may be inserted and disposed in the separation space Gm provided between the first side surface of the first module body 310 and the second end of the support part 610 described above. At this time, the locking body 621 is formed to have a shorter length than the separation space (Gm) based on the Y-axis direction of the drawing and can move within the separation space (Gm).

The locking body 621 may include an insertion protrusion 622 protruding outward from one surface thereof. The insertion protrusion 622 may be inserted into the support hole Hm of the support part 610 and perform a reciprocating linear motion along the longitudinal direction of the support hole Hm. By the reciprocating linear motion of the insertion protrusion 622, the locking body 621 may be guided to slide reciprocally along the longitudinal direction while being inserted into the space Gm.

The locking body 621 may include a locking groove (Lm) formed concavely from the bottom to the inside (-X-axis direction). Here, the lower surface may be a surface facing the first side surface of the first module body 310 among the surfaces of the locking body 621 . That is, the locking groove (Lm) may be formed concavely on the lower surface of the locking body 621 toward the inside of the locking body 621 (in the -X-axis direction).

As one embodiment, a pair of locking grooves (Lm) may be provided. In this case, the locking body 621 may include a pressure target portion 623 disposed between the pair of locking grooves Lm. The pressurized portion 623 is a portion pressed by the pressurizing portion 720 of the second locking module 700 to be described later. When the insertion unit 200 and the operation unit 100 are coupled, the pressurized portion 623 may be formed to protrude toward the insertion unit 200 along the longitudinal direction (Y-axis direction).

The pair of locking grooves (Lm) may be symmetrically disposed in the width direction (Z-axis direction) of the locking body 621 with the pressing target portion 623 at the center. Guide protrusions of the pair of intermediate connection portions 320 facing each other may be accommodated into the pair of locking grooves Lm. At this time, the pair of locking grooves (Lm) are formed to communicate with each other, but the present invention is not limited thereto.

The second locking module 700 may be disposed inside the insertion unit 200 . More specifically, the second locking module 700 may be provided in the second detachable module 300b. At this time, the second locking module 700 may include a coupling part 710 and a pressing part 720 .

The coupling part 710 is a part coupled to the second detachable module 300b, and the coupling part 710 may be coupled to one side (hereinafter, a first side) of the second module body 330. At this time, at one end of the coupling part 710, a pressing part 720 protruded in a direction parallel to the longitudinal direction and toward the outside of the second module body 330 (-Y axis direction) may be disposed.

When the insertion unit 200 and the operation unit 100 are coupled, the pressing portion 720 may be formed to protrude from the coupling portion 710 toward the aforementioned pressing target portion 623 . Meanwhile, the pressing unit 720 may be formed of, for example, the coupling unit 710 and a single plate, but may be separately manufactured and attached to the coupling unit 710 as another example.

Meanwhile, an elastic part (not shown) may be disposed between the locking body 621 and the support part 610 to provide elastic force to the locking body 621 . The elastic part is compressed and deformed when the pressing part 720 presses the pressing target part 623 and the locking body 621 connected thereto, and then, when the pressing by the pressing part 720 is released, it is possible to return the locking body 621 to its original position by providing elastic restoring force in the direction opposite to the pressing direction (-Y axis direction).

A pair of the aforementioned first locking modules 600 may be provided, and a pair of second locking modules 700 may also be provided to correspond thereto. In this case, the pair of first locking modules 600 may be respectively disposed on the first side surface of the first module body 310 and the second side surface opposite thereto. Also, the pair of second locking modules 700 may be respectively disposed on the first side surface of the second module body 330 and the second side surface opposite thereto. Accordingly, one of the pair of first locking modules 600 may face one of the pair of second locking modules 700, and the other of the pair of first locking modules 600 may face the other one of the pair of second locking modules 700.

The locking units 600 and 700 may lock or unlock the rotational movement of the intermediate connector 320 in the following manner. Meanwhile, since the operations of the pair of first locking modules 600 and the pair of second locking modules 700 are the same or similar to each other, hereinafter, one first locking module 600 and one second locking module 700 facing each other will be mainly described.

First, the locking units 600 and 700 may be in a locked state (hereinafter referred to as a locked state) so that the intermediate connection part 320 does not rotate before the operation unit 100 is coupled to the insertion unit 200. At this time, after the insertion unit 200 moves toward the operation unit 100 and at least a portion of the engaging members 331, 332, 333, and 334 are inserted into the insertion grooves 321, 322, 323, and 324, the first locking module 600 and the second locking module 700 are spaced apart from each other, or the first locking module 600 and the second locking module 70 0) may be in contact with each other and before the pressing part 720 presses the pressing target part 623.

At this time, the guide protrusions T1 , T2 , T3 , and T4 may be accommodated in locking grooves Lm formed in the locking body 621 facing each other. At this time, the locking body 621 may cover not only the guide protrusions T1, T2, T3, and T4, but also the 'curved parts' of the guide slits G1, G2, G3, and G4 to which the respective guide protrusions T1, T2, T3, and T4 are connected. On the other hand, although shown exaggeratedly in the drawing, the lock groove (Lm) is formed in a slightly larger size than one guide protrusion (T1, T2, T3, T4), so that the guide protrusion (T1, T2, T3, T4) can be accommodated in a state where only a slight play exists inside the lock groove (Lm).

In this case, when the guide protrusions T1, T2, T3, and T4 are accommodated in the locking groove Lm, they are blocked by the inner wall of the locking groove Lm, so that they cannot move along the guide slits G1, G2, G3, and G4, and thus the rotational movement of the intermediate connector 320 may be impossible (i.e., locked state).

Thereafter, as the insertion unit 200 moves closer to the operation unit 100 along the coupling direction (-Y axis direction), the pressing unit 720 presses the pressure target portion 623 in the same direction (-Y axis direction). As a result, the pressure target portion 623 and the locking body 621 connected thereto are pushed backward (in the -Y axis direction) along the support hole Hm, and thus the guide protrusions T1, T2, T3, T4 can be withdrawn from the lock groove Lm. In addition, as the locking body 621 is moved backward (in the -Y-axis direction), 'curved portions' of the guide slits G1, G2, G3, and G4 may be exposed to the outside. As such, by disposing the curved portions of the guide protrusions T1, T2, T3, and T4 and the guide slits G1, G2, G3, and G4 outside, the intermediate connection portion 320 can be rotatable (i.e., unlocked state).

At this time, in the case of the 'staggered alignment state' as described above, even if one of the pair of locking units 600 and 700 (hereinafter, the first set) is unlocked first, if the other one of the pair of locking units 600 and 700 (hereinafter, the second set) is unlocked (i.e., locked state), all the intermediate connectors 320 may be in a state in which rotational movement is impossible due to the second set. Thereafter, as the first set is further pressed in the coupling direction (-Y axis direction) while maintaining the unlock state, the second set is also unlocked, so that the first coupling end of the operation unit 100 and the second coupling end of the insertion unit 200 can be in a 'parallel alignment state'. As such, before coupling the insertion unit 200 to the operation unit 100 by the pair of locking units 600 and 700, the first coupling end and the second coupling end may be aligned in advance to bring them into a parallel alignment state.

Thereafter, when the insertion unit 200 is further pressed in the coupling direction (-Y axis direction) by the user, the guide protrusions T1, T2, T3, and T4 are moved along the curved and linear portions of the guide slits G1, G2, G3, and G4 connected to each other, and the intermediate connection portion 320 rotates and moves linearly. , 322, 323, 324), since the intermediate connection portion 320 and the insertion end connection portion 340 are coupled to each other in a hooked state, the same as or similar to those described above, duplicate descriptions thereof will be omitted.

On the other hand, the method in which the pressing unit 720 presses the pressing target unit 623 to unlock the rotational motion of the intermediate connection unit 320 is only one embodiment of the present invention, and as another embodiment, it is also possible to lock or unlock the rotational movement of the intermediate connection unit 320 using other methods such as magnet coupling and disengagement.

As described above, in the detachable endoscope 10 according to the embodiments of the present invention, the insertion unit 200 and the operation unit 1 of the detachable endoscope 10 are automatically aligned by using a pair of locking units 600 and 700 disposed symmetrically to each other to automatically align the insertion end connectors 340 of the insertion unit 200 and the intermediate connector 320 of the operation unit 100 in a parallel state prior to coupling the two units. 00) enables easy coupling between

The above description of the present invention is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present invention.

10: detachable endoscope
100: operation unit
200: insertion unit
300: detachable unit
600: first locking module
700: second locking module

Claims (7)

One end, the insertion unit is inserted into the body;
an operation unit coupled to the other end of the insertion unit and operating the one end of the insertion unit to perform a bending motion using an operation module;
a detachable unit having a first detachable module disposed inside the operation unit and a second detachable module disposed inside the insertion unit and detachably coupled to the first detachable module; and
A detachable endoscope comprising: a locking unit that selectively locks the coupling between the first detachable module and the second detachable module, and includes a first locking module disposed on the first detachable module and a second locking module disposed on the second detachable module so as to face the first locking module. According to claim 1,
The first detachable module has an intermediate connection portion connected to a connection wire receiving force from the operation module,
The intermediate connection portion includes an intermediate connection body disposed rotatably around a longitudinal direction; and a guide protrusion protruding outward from one end of the intermediate connection body in a radial direction to guide rotational motion of the intermediate connection body. According to claim 2,
The detachable endoscope wherein the first locking module selectively locks or unlocks the movement of the guide protrusion by reciprocating linear motion along the longitudinal direction. According to claim 2,
The first locking module,
a support portion disposed on one surface of the first module body and having a separation space extending along one direction; and
A detachable endoscope comprising a locking body arranged to be reciprocally linearly movable within the separation space, and a moving unit having a locking groove concavely formed on the lower surface of the locking body. According to claim 4,
The second locking module,
A detachable endoscope comprising a pressurizing portion protruding toward the locking body when the operation unit and the insertion unit are coupled. According to claim 5,
Before combining the insertion unit and the operation unit, the guide protrusion is disposed in a state of being inserted into the lock groove. According to claim 5,
When the insertion unit and the operation unit are coupled, the pressing portion presses the locking body in a coupling direction and moves the locking body rearward, so that the guide protrusion is drawn out from the locking groove.

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