JP4652837B2 - Endoscope - Google Patents

Description

  The present invention relates to an endoscope provided with an operation unit having an appearance constituent member and an internal structural member provided in the appearance constituent member.

  As an endoscope, an endoscope having an operation unit having an external component (exterior cover), an internal structural member provided in the external structural member, and a built-in object provided in the internal structural member. Are known. The internal structural member is composed of a substantially cylindrical member.

  As an endoscope, there is known an endoscope configured such that a case member that houses and holds a control valve rotates relative to an operation unit main body within a specified angle range. The case member has openings at both ends in the longitudinal direction. The operation portion main body is fitted to the opening on the insertion portion side of the case member so as to be rotatable within a specified angle range. An engagement portion that performs positioning when the case member is rotated with respect to the operation portion main body is provided in the fitting portion between the case member and the operation portion main body (see, for example, Patent Document 1).

  In Patent Document 1, a protrusion is provided on the outer surface of the case member, and a pair of holes that respectively engage with the protrusions are provided on the inner surface of the insertion portion main body so that the case member has a specified angular range with respect to the operation portion main body. An example is shown that is configured to pivot relative to each other. The pair of holes are provided, for example, at positions that deviate from each other by a specified angle with the center position of the insertion portion main body as the center.

  In Patent Document 1, a protrusion is provided on the outer surface of the case member, and a notch for guiding the protrusion is provided on the inner surface of the insertion portion main body so that the case member is within a specified angular range with respect to the operation portion main body. The other example comprised so that it may rotate relatively is shown. The notch is provided, for example, over a specified angular range in the circumferential direction.

Furthermore, what is provided with the connection part which connects an insertion part and an operation part main body as an endoscope is known. The connecting portion has a pair of frames and an exterior member that covers the frames. A pair of convex portions is formed on the inner surface of the exterior member. In this endoscope, the pair of convex portions are sandwiched between the gaps formed by the pair of frames, so that the exterior member and the internal parts of the frame are assembled so as to prevent rotation in the circumferential direction. (For example, refer to Patent Document 2).
JP-A-9-173277 (paragraph 0015, paragraph 0038, FIG. 5, FIG. 8) Japanese Patent Laying-Open No. 2003-190079 (paragraphs 0015 to 0017, FIG. 4)

  As described above, the operation unit provided in the conventional endoscope is formed by covering the internal structural member constituted by the substantially cylindrical member with the external appearance constituent member. For this reason, when repair work or the like is performed on the built-in object accommodated in the operation unit, not only the external component but also the internal structural member must be removed from the endoscope body. Therefore, it takes time and effort to work on the built-in items. Further, when assembling the endoscope main body, a built-in object such as a cable passing through the operation portion must be inserted (inserted) into the substantially cylindrical internal structural member in advance. Therefore, the assembly of the endoscope body is complicated.

The present invention has been made based on such circumstances, and has an excellent assemblability, and can easily perform work such as repair on a built-in object built in the operation unit. The purpose is to provide.

The endoscope according to one aspect of the present invention includes an insertion portion, and the insertion portion possess an operation section connected to, air and water supply cylinder curved part at the tip side of the insertion portion, the operation portion, An endoscope including an endoscope main body in which a bending mechanism for operating the bending portion is provided, wherein the operation unit includes a plurality of external appearance components and an internal portion provided in the external appearance configuration member has a structural member, the inner structural member, a plurality of cylindrical portions, possess at least one plate portion disposed astride between the cylindrical portion adjacent to each other, the curvature in the operating unit An exterior member having the air / water supply cylinder is disposed on the rear end side of the exterior member in which the mechanism is disposed, and the internal structural member is provided with two plate portions straddling between two cylindrical portions, The air / water supply cylinder between the two tube portions and the two plate portions There has been arranged.

The endoscope according to one aspect of the present invention includes an insertion portion and an operation portion coupled to the insertion portion, a bending portion at the distal end side of the insertion portion, and an air / water supply cylinder at the operation portion And an endoscope main body in which a bending mechanism for operating the bending portion is provided, wherein the operation unit is provided in a plurality of appearance constituent members and in the appearance constituent members. has an internal structural member, the internal structural member, as described above, possess a plurality of cylindrical portions, and at least one plate portion disposed astride between the cylindrical portion adjacent to each other, An outer appearance member having the air / water supply cylinder is disposed on the rear end side of the outer appearance member on which the bending mechanism is disposed in the operation portion, and the internal structural member includes two inner straddles between two cylindrical portions. A plate portion is provided, and a front portion is provided between the two tube portions and the two plate portions. Air and water supply cylinder is disposed. Therefore, the built-in object incorporated in the operation unit can be provided in the internal structural member, that is, in a space that includes the plate part and is virtually connected to the cylinder parts adjacent to each other. Moreover, this internal structure member has the clearance gap which is not covered with the plate part between the mutually adjacent cylinder parts. Therefore, the built-in object provided in the space can be exposed to the outside only by removing the external appearance component from the endoscope body. Accordingly, it is possible to easily perform work such as repairing the built-in object built in the operation unit. In addition, when assembling the endoscope body, a built-in object such as a cable can be easily inserted into the internal structural member. Therefore, the assemblability of the endoscope body can be improved.

  According to the above-described aspect of the present invention, it is possible to obtain an endoscope that is easy to assemble and that can easily perform work such as repair on a built-in object built in the operation unit.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, the direction of the insertion portion of the endoscope is described as the front direction (distal direction), and the direction opposite to the direction of the insertion portion is described as the rear direction (base end direction).

  As shown in FIG. 1, an endoscope 1 according to this embodiment is an endoscope used for, for example, laparoscopic examination, and includes an insertion unit 2, an operation unit 3, a universal cord 4, a light guide connector 5, and a camera. A cable serpentine tube 6 and a camera connector 7 are provided.

  The insertion portion 2 is configured by sequentially connecting a distal end rigid portion 8, a bending portion 9, and a rigid insertion portion 10 from the distal end side. The operation unit 3 is connected to the proximal end of the rigid insertion portion 10 that is the proximal end of the insertion portion 2. A universal cord 4 is provided at the base end of the operation unit 3. A light guide connector 5 is provided at the base end of the universal cord 4. The universal cord 4 can be connected to the light source device 100 via the light guide connector 5.

  A camera cable serpentine tube 6 branches from the light guide connector 5. A camera connector 7 is provided at the base end of the camera cable serpentine tube 6. The camera cable serpentine tube 6 can be connected to the video processor 101 via the camera connector 7. The endoscope main body 30 is configured to include the insertion portion 2, the operation portion 3, the universal cord 4, and the light guide connector 5.

  An imaging unit (not shown) is accommodated in the distal end hard portion 8. The imaging unit includes an optical system having an objective lens and a CCD as an imaging device that converts an observation image formed through the optical system into an electrical signal. The imaging unit is fixed in the distal end hard portion 8 with the objective lens facing toward the distal end side. The imaging unit is electrically connected to the camera connector 7 via a cable (not shown), a universal cord 4, a light guide connector 5, and a camera cable serpentine tube 6, which is one of the built-in items built in the operation unit 3. Connected. A pair of light guides (not shown) are inserted into the endoscope body 30. The tips of these light guides are exposed outward from the tip surface of the tip hard portion 8. These light guides are connected to a light guide connector 5 via a universal cord 4.

  The endoscope main body 30 has a water supply conduit 11 through which a liquid such as water or a cleaning liquid passes and an air supply conduit 12 through which a gas such as air passes. In addition to the water supply conduit 11 and the air supply conduit 12, a pipe such as an air / water supply conduit and a suction conduit may be provided in the endoscope body 30. The water supply conduit 11 and the air supply conduit 12 merge in the insertion portion 2. A merging conduit 31 formed by joining the air feeding conduit 12 and the water feeding conduit 11 has an opening on the distal end surface of the distal end hard portion 8.

  The proximal ends of the water supply conduit 11 and the air supply conduit 12 are connected to a cylindrical air / water supply base 13. The air / water supply base 13 is detachably attached to the light guide connector 5. The air / water supply cap 13 can be connected to a water supply source via a tube (not shown). Further, the air supply / water supply base 13 is provided with an air supply base 14. The air supply base 14 can be connected to an air supply source via a tube (not shown).

  The operation unit 3 incorporates an air / water supply cylinder 15 which is one of the built-in objects incorporated in the operation unit 3. The air / water supply cylinder 15 communicates with the air supply line 12 and the water supply line 11, respectively. One end of the air / water supply cylinder 15 protrudes outward of the operation unit 3. An air / water supply button 16 is detachably fitted in a portion of the air / water supply cylinder 15 protruding outward from the operation unit 3. By operating the air / water supply button 16, water, a cleaning liquid, or the like is discharged from the distal end surface of the distal end hard portion 8 through the water supply source, the water supply conduit 11, and the merging conduit 31. The front end surface of 8 (for example, a lens cover that covers the objective lens) and the observation object can be cleaned. Further, by operating the air / water supply button 16, air or the like is discharged from the distal end surface 8 a of the distal end hard portion 8 through the air supply source, the air supply conduit 12, and the merge conduit 31. Can do.

  The endoscope main body 30 has a bending mechanism that operates the bending portion 9. The bending mechanism has an angle wire (not shown) and an angle lever 32. The angle lever 32 is provided in the operation unit 3. The angle wire is inserted into the bending portion 9, the rigid insertion portion 10, and the operation portion 3, and its proximal end is connected to an angle lever 32 provided on the operation portion 3. The bending mechanism is configured such that the bending portion 9 is bent by operating the angle lever 32 and operating the angle wire.

  Next, the operation unit 3 will be described in detail. As shown in FIG. 2, the operation unit 3 includes an external component (exterior cover) 40, first and second internal structural members 50 and 60 provided in the external component 40, and the internal structural member. 50, 60 and a built-in object. In addition, in FIG. 2, although the tube 33 which makes a part of the air / water supply cylinder 15 and the water supply pipe | tube 11 and the air supply pipe | tube 12 is shown as a built-in thing, as a built-in thing, besides this, There are a light guide, a cable extending from the imaging unit, an angle wire, and the like.

  The external appearance component 40 is arranged in this order from the front end side to the first external appearance member 41, the second external appearance member 42, the third external appearance member 43, the fourth external appearance member 44, and the fifth external appearance member 45. They are connected in series. Each external member 41, 42, 43, 44, 45 is formed in a substantially cylindrical shape having openings at both ends, and has a space for accommodating the internal structural members 50, 60 and built-in objects therein. . The first and second appearance members 41 and 42 are formed in a substantially cylindrical shape. The third appearance member 43 has an angle lever 32. A part of the air / water supply cylinder 15 is accommodated in the fourth appearance member 44. The air / water supply cylinder 15 protrudes outward via the fourth appearance member 44.

  Note that reference numeral 71 in FIG. 2 denotes an O-ring as watertight holding means for keeping the first outer appearance member 41 and the second outer appearance member 42 watertight. Reference numeral 72 in FIG. 2 indicates an O-ring as a watertight holding means for keeping the space between the second appearance member 42 and the third appearance member 43 watertight. Reference numeral 73 in FIG. 2 indicates an O-ring as watertight holding means for keeping the space between the fourth appearance member 44 and the fifth appearance member 45 watertight. Reference numeral 74 in FIG. 2 indicates an O-ring as watertight holding means for keeping watertight between the fourth appearance member 44 and the air / water supply cylinder 15.

  A first internal structural member 50 is provided in the first and second appearance members 41 and 42. A second internal structural member 60 is provided in the fourth appearance member 44. Each of the first and second internal structural members 50, 60 has a plurality of cylindrical portions and at least one plate portion provided between the adjacent cylindrical portions.

  Specifically, as shown in FIGS. 2 and 5, the first internal structural member 50 includes first to third cylindrical portions 51, 52, 53 and first to fourth plate portions 54, 55, 56. , 57. The first and second plate portions 54 and 55 are provided so as to straddle between the first and second cylindrical portions 51 and 52 adjacent to each other. The third and fourth plate portions 56 and 57 are provided between the second and third cylindrical portions 52 and 53 adjacent to each other.

  In this embodiment, each cylinder part 51,52,53 and each plate part 54,55,56,57 which the 1st internal structure member 50 has are comprised by a different member altogether. That is, the 1st thru | or 3rd cylinder parts 51, 52, and 53 are comprised by the metal 1st thru | or 3rd cylindrical members 51a, 52a, and 53a. The third cylindrical member 53a is a bottomed cylindrical member. The 1st thru | or 4th plate parts 54, 55, 56, and 57 are comprised by the metal 1st thru | or 4th plate members 54a, 55a, 56a, and 57a. The 1st and 2nd plate members 54a and 55a are comprised by the member of the same shape. The first and second plate members 54a and 55a have plate main bodies 54b and 55b and projecting portions 54c and 55c provided at the base ends of the plate main bodies 54b and 55b. Further, the third and fourth plate members 56a and 57a are composed of members having the same shape.

  One ends (tips) of the plate bodies 54b and 55b are fixed to the first cylindrical member 51a by screws 81 and 82. The other ends (base ends) of the plate bodies 54b and 55b are fixed to the second cylindrical member 52a by screws 83 and 84. By doing in this way, the 1st and 2nd plate parts 54 and 55 will be provided ranging between the 1st and 2nd cylinder parts 51 and 52 which adjoin mutually. The first and second plate members 54a and 55a can be easily removed from the endoscope body 30 (first and second cylindrical members 51a and 52a) by loosening the corresponding screws 81, 82, 83, and 84. Can be removed.

  One ends (tips) of the third and fourth plate members 56a and 57a are fixed to the protruding portions 54c and 55c of the first and second plate members 54a and 55a by screws 85 and 86, respectively. The other ends (base ends) of the third and fourth plate members 56a and 57a are fixed to the third cylindrical member 53a by screws 87 and 88. By doing in this way, the 3rd and 4th plate parts 56 and 57 will be provided ranging over the 2nd and 3rd cylinder parts 52 and 53 which adjoin mutually. Further, the third and fourth plate members 56a and 57a loosen the corresponding screws 85, 86, 87, and 88, so that the endoscope main body 30 (the first and second plate members 54a and 55a and the third plate member 56a and 57a and the third plate member 56a and 57a and the third plate member 56a and 57a). Can be easily removed from the cylindrical member 53a).

  In the present embodiment, the first and second plate members 54a, 55a are detachably fixed to the first and second cylindrical members 51a, 52a by screws 81, 82, 83, 84. However, the first and second plate members 54a and 55a may be fixed to the first and second cylindrical members 51a and 52a by welding or the like. Similarly, the third and fourth plate members 56a and 57a are detachably fixed to the overhanging portions 54c and 55c and the third cylindrical member 53a by screws 85, 86, 87 and 88. The third and fourth plate members 56a and 57a may be fixed to the overhang portions 54c and 55c and the third cylindrical member 53a by welding or the like. However, in order to secure a better space for repairing the built-in components, at least one of the first and second plate members 54a, 55a is provided with the first and second cylindrical members 51a, It is preferable to detachably fix to 52a. Similarly, it is preferable that at least one of the third and fourth plate members 56a and 57a is detachably fixed to the projecting portions 54c and 55c and the third cylindrical member 53a.

  In the present embodiment, as shown in FIGS. 2 and 5, the third plate member 56a is fixed to the overhanging portion 54c of the first plate member 54a, and the fourth plate member 57a is fixed to the second plate member. The third and fourth plate members 56a and 57a are indirectly fixed to the second cylindrical member 52a by being fixed to the overhanging portion 55c of 55a. However, as shown in FIG. The four plate members 56a and 57a may be directly fixed to the second cylindrical member 52a. Furthermore, the positions for fixing the plate members 54a, 55a, 56a, 57a can be arbitrarily determined depending on the positions of the built-in objects. That is, the positions of the first and third plate members 54a and 56a do not have to be arranged on a straight line as shown in FIG. 5, but may be shifted as shown in FIG. Similarly, the positions of the second and fourth plate members 55a and 57a do not have to be arranged on a straight line as shown in FIG. 5, but may be shifted as shown in FIG. The first and second plate members 54a and 55a may not be provided at positions facing each other. Similarly, the 3rd and 4th plate members 56a and 57a do not need to be provided in the position which opposes.

  As shown in FIGS. 2 to 4, the second internal structural member 60 includes fourth and fifth cylindrical portions 61 and 62 and fifth and sixth plate portions 63 and 64. The fifth and sixth plate portions 63 and 64 are provided across the fourth and fifth cylindrical portions 61 and 62 adjacent to each other.

  In this embodiment, each cylinder part 61,62 and each plate part 63,64 which the 2nd internal structure member 60 has are comprised by the member from which all differ. That is, the 4th and 5th cylinder parts 61 and 62 are constituted by metal 4th and 5th cylindrical members 61a and 62a. The fifth and sixth plate portions 63 and 64 are constituted by metal fifth and sixth plate members 63a and 64a.

  The fourth cylinder portion 61 is provided between the third appearance member 43 and the fourth appearance member 44. Between the 4th cylinder part 61 and the 3rd external appearance member 43, the O-ring 75 as a watertight holding means is provided. Further, an O-ring 76 as a watertight holding means is provided between the fourth cylindrical portion 61 and the fourth appearance member 44. The fifth cylindrical portion 62 is provided at the proximal end of the fourth appearance member 44. Between the 5th cylinder part 62 and the 4th external appearance member 44, the O-ring 77 as a watertight holding means is provided.

  The fifth and sixth plate members 63a and 64a are composed of members having the same shape. In the present embodiment, the fifth and sixth plate members 63a and 64a are composed of members having the same shape as the third and fourth plate members 56a and 57a.

  One ends (tips) of the fifth and sixth plate members 63a and 64a are fixed to the fourth cylindrical member 61a by screws 89 and 90, respectively. The other ends (base ends) of the fifth and sixth plate members 63a and 64a are fixed to the fifth cylindrical member 62a with screws. Reference numeral 91 denotes a screw for fixing the fifth plate member 63a to the fifth cylindrical member 62a, and a screw for fixing the sixth plate member 64a to the fifth cylindrical member 62a is not shown. . By doing in this way, the 5th and 6th plate parts 63 and 64 will be provided straddling between the 4th and 5th cylinder parts 61 and 62 which adjoin mutually. The fifth and sixth plate members 63a and 64a can be easily removed from the endoscope body 30 (fourth and fifth cylindrical members 61a and 62a) by loosening the corresponding screws.

  In the present embodiment, the fifth and sixth plate members 63a and 64a are detachably fixed to the fourth and fifth cylindrical members 61a and 62a by screws. The six plate members 63a and 64a may be fixed to the fourth and fifth cylindrical members 61a and 62a by welding or the like. However, in order to secure a better space for repairing the built-in object, at least one of the fifth and sixth plate members 63a, 64a is replaced with the fourth and fifth cylindrical members 61a, It is preferable that it is detachably fixed to 62a.

  According to the endoscope 1 configured as described above, the internal structural members 50 and 60 are provided across the plurality of cylinder portions 51, 52, 53, 61, and 62 and the adjacent cylinder portions. The plate portions 54, 55, 56, 57, 63, and 64 are provided. And the built-in thing built in the operation part 3 is the space which includes the internal structural members 50 and 60 (that is, includes the plate parts 54 and 55 and virtually connects the cylinder parts 51 and 52 adjacent to each other). Inside, a space that includes the plate portions 56 and 57 and virtually connects the cylinder portions 52 and 53 adjacent to each other, and a cylinder portion 61 and 61 that includes the plate portions 63 and 64 and that are adjacent to each other. In a space that is virtually connected to each other. Therefore, the built-in object provided in the internal structural members 50 and 60 can be exposed to the outside only by removing the external appearance component 40 from the endoscope body 30. Therefore, it is possible to easily perform work such as repairing the built-in object built in the operation unit 3. In addition, when the endoscope main body 30 is assembled, a built-in object such as a cable extending from the imaging unit can be easily inserted into the internal structural members 50 and 60. Therefore, the assemblability of the endoscope main body 30 can be improved.

  Moreover, in the endoscope 1 according to the present embodiment, the cylindrical portions 51, 52, 53, 61, 62 and the plate portions 54, 55, 56, 57, 63, 64 are configured by different members, and the plate portion 54 is provided. , 55, 56, 57, 63, 64, plate members 54a, 55a, 56a, 57a, 63a, 64a are cylindrical members 51a, 52a, 53a, 61a that form cylindrical portions 51, 52, 53, 61, 62. , 62a is detachably attached. Therefore, by removing a part or all of the plate members 54a, 55a, 56a, 57a, 63a, and 64a from the cylindrical members 51a, 52a, 53a, 61a, and 62a, it is possible to further secure a space for performing work such as repair. Can do.

  In the endoscope 1 of the present embodiment, the plate members 54a, 55a, 56a, 57a, 63a, and 64a are directly or indirectly fixed to the cylindrical members 51a, 52a, 53a, 61a, and 62a. Therefore, the plate members 54a, 55a, 56a, 57a, 63a, and 64a do not rotate carelessly with respect to the cylindrical members 51a, 52a, 53a, 61a, and 62a. Therefore, it is not necessary to position the plate members 54a, 55a, 56a, 57a, 63a, and 64a, so that positioning means and the like can be omitted. Moreover, the internal structural members 50 and 60 can be easily assembled.

  Furthermore, in the endoscope 1 of the present embodiment, since the fourth to sixth plate portions 56a, 57a, 63a, and 64a are configured by members having the same shape, these members can be shared. That is, in the present embodiment, the internal structural members 50, 60 have six plate portions 54, 55, 56, 57, 63, 64, but these plate portions 54, 55, 56, 57, As the members constituting 63 and 64, two kinds of plate members may be used. Therefore, the manufacturing cost can be reduced.

  In the endoscope 1 of the present embodiment, O-rings 75, 76, 77, 78 as watertight holding means are provided between the tube portions 61, 62 and the appearance component member 40, so that the internal structure The watertightness between the members 50 and 60 and the appearance constituent member 40 can be maintained.

  Furthermore, in the endoscope 1 of the present embodiment, the plate portions 54, 55, 56, 57, 63, and 64 are made of metal. Therefore, the strength as the internal structural member can be kept better.

  In addition, the cylinder part / cylinder member in this specification is not limited to the cylindrical part / cylinder member, and refers to a hollow part / hollow member having a cavity inside. That is, the outer shape and the inner shape of the cylindrical portion and the cylindrical member are arbitrary, and the wall thickness is not necessarily constant over the entire region.

  Moreover, in this embodiment, although the cylinder part and the plate part are comprised by the different member, you may form a cylinder part and a plate part integrally. In this embodiment, the cylinder part and the plate part are made of metal, but the material forming the cylinder part and the plate part is arbitrary, and synthetic resin or the like may be used.

  In the present embodiment, two plate portions are provided between cylinders adjacent to each other, but the number of plates provided between cylinders adjacent to each other is arbitrary. Further, the width of the plate portion can be arbitrarily determined. Further, this structure can be employed not only in the operation unit but also in a necessary part such as a repair (for example, a light guide connector).

The perspective view which shows the endoscope which concerns on one form of this invention. FIG. 2 is a side view showing the vicinity of an operation unit of the endoscope of FIG. Sectional drawing cut | disconnected and shown along the III-III line in FIG. Sectional drawing cut | disconnected and shown along the IV-IV line in FIG. The perspective view which shows the attachment member to which the plate with which the endoscope of FIG. 1 is equipped, and the plate was attached. The perspective view which shows the other example of the attachment to the attachment member of a plate.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Endoscope, 2 ... Insertion part, 3 ... Operation part, 30 ... Endoscope main body, 40 ... External appearance component, 50, 60 ... Internal structure member, 51, 52, 53, 61, 62 ... Cylindrical part, 54, 55, 56, 57, 63, 64 ... plate part, 75, 76, 77, 78 ... O-ring (watertight holding means)

Claims (5)

An insertion portion and an operation portion connected to the insertion portion possess,
An endoscope comprising an endoscope main body in which a bending portion is disposed on the distal end side of the insertion portion, an air / water supply cylinder is disposed in the operation portion, and a bending mechanism for operating the bending portion is provided,
The operation unit includes a plurality of external structural members and an internal structural member provided in the external structural member.
It said inner structural member, possess a plurality of cylindrical portions, and at least one plate portion disposed astride between the cylindrical portion adjacent to each other,
An exterior member having the air / water supply cylinder is disposed on the rear end side of the exterior member in which the bending mechanism in the operation unit is disposed,
The internal structural member is provided with two plate portions straddling between two cylindrical portions, and the air / water supply cylinder is disposed between the two cylindrical portions and the two plate portions. Endoscope.   The endoscope according to claim 1, wherein a watertight holding unit is provided between at least one of the plurality of tube portions and the external appearance constituent member.   The endoscope according to claim 1, wherein the cylindrical portion and the plate portion are formed of different members.   The internal structure member has a plurality of plate portions, and at least two plate portions of the plurality of plate portions are configured by members having the same shape. The endoscope described.   The endoscope according to any one of claims 1 to 4, wherein the plate portion is made of metal.

Images