JP2012130367A - Endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope that facilitates recognition of identification information of the endoscope from a distance and changeover of the information.SOLUTION: In the endoscope including an operation part 11 and an insertion part 12 extending from the operation part, a ring mounting part 20 is formed on the operating part so that an identification ring 30 whose center angle larger than 180° can be attached to/detached from the ring mounting part.

Description

  The present invention relates to an endoscope that can easily give information necessary for management and can easily change the given information.

There are various types of endoscopes, and the shape, dimensions, and the like vary little by little. In addition, a plurality of endoscopes having the same specification may be used for different purposes (inspection purposes). Therefore, a product name, a purpose of use, and the like are conventionally described for an endoscope.
In Patent Document 1, an operation part (grip part) of an endoscope is provided with an entry part that is integral (non-detachable) with the operation part or a removable seal-type entry part, and the surface of the entry part (the entry surface) ) Is filled with characters such as endoscope management number and purpose of use with an oil-based felt pen.

JP-A-7-178037

However, since the entry portion is not so large (the size is inevitably limited by the size of the grip portion), it is difficult to recognize the characters written in the entry portion from a distance.
In order to change the character information written in the entry part, erase the character on the entry part surface with chemicals, etc., or rewrite the letter, or remove the sticker and paste another sticker. It was necessary to rewrite the letters on the surface, which was troublesome.

  An object of the present invention is to provide an endoscope in which identification information of an endoscope can be easily recognized even from a distance, and the identification information can be easily changed.

  The endoscope according to the present invention is an endoscope including an operation portion and an insertion portion extending from the operation portion, wherein a ring attachment portion is formed in the operation portion, and a central angle is larger than 180 ° in the ring attachment portion. The identification ring is detachable.

  An endoscope according to the present invention includes an operation section, an insertion section extending from the operation section, and a processor side extension section extending from the operation section toward the opposite side of the insertion section and connected to a processor. In this embodiment, a ring attachment portion is formed on at least one of the operation portion and the processor side extension portion, and an identification ring having a central angle larger than 180 ° is detachable from the ring attachment portion.

The peripheral surface of the base end portion of the insertion portion having flexibility is covered with a fastening rubber that has a cylindrical shape and is less likely to be bent than the insertion portion, and the base end is fixed to the operation portion. A forceps port communicating with the internal conduit of the operation portion and the insertion portion, and a cylindrical portion having a substantially circular cross section located between the forceps port and the folding rubber, and mounting the ring on the cylindrical portion A part may be formed.
Since the cylindrical portion of the operation portion is a portion that the operator does not touch during the operation of the endoscope, even if an operation ring is attached here, the fit of the operator to the operation portion is not impaired.

The identification ring may be formed from an elastic material.
If comprised in this way, it will become easy to attach or detach an identification ring with respect to the ring attachment part of an insertion part or a processor side extension part.

The identification ring may be a C ring.
If comprised in this way, since an identification ring can be attached or detached with respect to the ring attachment part of an operation part or a processor side extension part, without passing a ring from the front-end | tip of an insertion part or the extension part of a processor side, an identification ring It becomes easier to put on and take off.

A locking projection is formed on the ring mounting portion, and a retaining projection is formed on the inner surface of the identification ring to engage with the locking projection from the side opposite to the insertion portion when mounted on the ring mounting portion. May be.
If comprised in this way, the risk that an identification ring will accidentally drop from a ring attachment part can be reduced.

You may form the fixed identification part exposed outside when the said identification ring is attached to the said ring attachment part.
If comprised in this way, in addition to the identification information which an identification ring has, the identification information which a fixed identification part has can be provided to an endoscope, Therefore Many identification information can be provided to an endoscope.

The fixed identification portion may be formed on the ring mounting portion, and the fixed identification portion may be formed on the identification ring.
In this way, since the identification ring can be overlapped with the fixed identification portion, even if the space for forming the fixed identification portion and the ring mounting portion is small like a small endoscope, the fixed identification portion Once formed, the identification ring can be attached.

The ring attachment portion may be capable of attaching a plurality of the identification rings.
In this way, more identification information can be given to the endoscope.

According to the present invention, since the identification ring is provided in the operation unit or the processor side extension, the identification information (intended use, hardness of the insertion unit, etc.) can be obtained from a distance by changing the color or shape of the identification ring. Easily recognize endoscope specifications).
Moreover, the identification information can be easily changed by simply changing the identification ring attached to the endoscope to an identification ring of a different color or shape.
Furthermore, since the central angle of the identification ring is larger than 180 °, the identification ring is difficult to drop off from the ring mounting portion, and from any direction (except for the insertion portion in a straight state and the axial direction of the processor side extension portion). Visible.

It is the whole figure which omitted a part of endoscope which equipped with the discernment ring of a 1st embodiment of the present invention. FIG. 2 is an overall view similar to FIG. 1 showing an endoscope and an identification ring separated from each other. It is a perspective view of an identification ring. It is an expanded sectional view which follows the IV-IV arrow line of FIG. It is a side view of the identification ring of the 2nd Embodiment of this invention. It is a side view of another identification ring of the 2nd Embodiment of this invention. It is a side view of another identification ring of the 2nd Embodiment of this invention. It is the same general view as FIG. 1 of the 3rd Embodiment of this invention. It is a figure which shows the peripheral part of the ring attachment part of the endoscope of the 4th Embodiment of this invention. It is the same general view as FIG. 1 of the 5th Embodiment of this invention. It is the same general view as FIG. 1 of the 6th Embodiment of this invention. It is sectional drawing which follows the XII-XII arrow line of FIG. It is sectional drawing which follows the XIII-XIII arrow line of FIG.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In the following front-rear direction in the following description, the distal end side of the insertion portion 12 of the endoscope 10 is defined as “front”, and the distal end side (connector portion 14 side) of the processor side extension portion 13 is defined as “rearward”.
The endoscope 10 includes an operation portion 11 made of a hard resin, an insertion portion 12 that extends forward from the operation portion 11 and has flexibility (excluding the distal end portion), and a side opposite to the insertion portion 12 from the operation portion 11. And a connector part connected to a processor (light source device / image processing apparatus, not shown), which is fixed to the rear end of the processor side extending part 13 and includes an image processing circuit, a light source, and the like. 14. The vicinity of the distal end of the insertion portion 12 is a bending portion 16 that bends in response to a rotation operation of a bending operation lever 15 that is rotatably provided on the operation portion 11.
In the vicinity of the front end of the operation unit 11, a treatment instrument insertion protrusion 17 whose end face opens (forceps opening) protrudes, and a rubber cap 18 can be attached to and detached from the end face opening of the treatment instrument insertion protrusion 17. It is attached. An internal pipe (not shown) is provided inside the operation unit 11, the insertion unit 12, and the processor side extension unit 13, and the end surface opening of the treatment instrument insertion projection 17 is a treatment instrument insertion projection. The internal pipe line 17 communicates with the internal pipe line 17.
A portion of the operation unit 11 positioned in front of the treatment instrument insertion protrusion 17 is a cylindrical cylindrical portion 19 centering on the axis of the insertion portion 12 in a linear state, and the outer peripheral surface of the cylindrical portion 19 is The ring attachment part 20 which consists of a cylindrical surface is comprised. A locking projection 21, which is an annular projection centered on the axis, is integrally provided at the center of the ring mounting portion 20.
The proximal end portion of the insertion portion 12 is covered with a folding rubber 22 having a truncated conical shape and opening at both front and rear ends. The rear end surface of the folding rubber 22 is fixed to the front end surface of the cylindrical portion 19, and the front end opening of the folding rubber 22 is in a fitted state with respect to the surface of the insertion portion 12. The folding rubber 22 is made of hard rubber, and the folding rubber 22 (the base end portion of the insertion portion 12) is less likely to bend than the portion (excluding the tip portion) in front of the base end portion of the insertion portion 12. .
A tube support part 23, which is a cylindrical member made of hard resin, is fixed to the rear part of the operation part 11, and the tube support part 23 has flexibility, and a universal tube having a connector part 14 fixed to the tip thereof. The base ends of 24 are connected. Further, the base end portion of the universal tube 24 is covered with a folding rubber 25 having a truncated cone shape and having both front and rear ends opened. One end of the folding rubber 25 is fixed to the front end of the tube support 23, and the other end opening of the folding rubber 25 is fitted to the surface of the universal tube 24. The folding rubber 25 is made of hard rubber, and the folding rubber 25 (base end portion of the universal tube 24) is less likely to bend than a portion behind the base end portion of the universal tube 24.

Next, the structure of the identification ring 30 that can be attached to and detached from the ring mounting portion 20 will be described.
The identification ring 30 is made of a red resin material having a slight elasticity, and is an annular member having a circular cross section whose inner diameter is substantially the same as that of the cylindrical portion 19 (ring attachment portion 20). In addition, four retaining protrusions 31 protrude from the inner peripheral surface of the identification ring 30 at equal angular intervals (90 °) in the circumferential direction.
In the present embodiment, only one identification ring 30 is shown in FIGS. 1 to 4, but in addition to what is shown, there are a plurality (a large number) of identification rings having the same shape as the identification ring 30 but different in color from the identification ring 30. Prepared.
The colors of the identification ring 30 and other identification rings of the present embodiment are different specifications of the endoscope 10 (the presence or absence of the zoom function of the optical system provided at the distal end portion of the insertion portion 12, the distal end portion of the insertion portion 12). The identification ring 30 in red means “no zoom function and large-diameter insertion portion”, and is shown in blue, not shown. The identification ring means “a zoom function and a large diameter insertion portion”.

After the distal end portion of the insertion portion 12 is passed through the inside of the identification ring 30, when the identification ring 30 is moved rearward along the insertion portion 12 to the cylindrical portion 19, the four retaining projections 31 and the locking projections 21 ( When they face each other (in the radial direction of the cylindrical portion 19), they come into contact with each other, and the backward movement of the identification ring 30 is prevented. However, when the identification ring 30 is moved rearward with a strong force from this state, the four retaining projections 31 are slightly elastically deformed (and elastically deformed in the direction in which the identification ring 30 is slightly expanded in diameter). Immediately after getting over the portion 21, the retaining protrusions 31 (and the identification ring 30) return to the free state, and each retaining protrusion 31 engages with the locking protrusion 21 from the rear. Therefore, unless the surgeon intentionally moves the identification ring 30 forward with respect to the operation unit 11, the identification ring 30 will drop off (move toward the insertion unit 12) from the operation unit 11 (ring attachment unit 20). Absent.
If the endoscope 10 equipped with the identification ring 30 is hung on, for example, a hanger (not shown), the surgeon is an endoscope of the “no zoom function and large diameter insertion portion” type. This makes it possible to recognize the situation at a glance even from a distance, so that the operator who intends to perform endoscopy on the patient has another endoscope (for example, an endoscope with a zoom function and a large diameter insertion section). Can be reliably prevented from being selected by mistake.

If a medical institution that owns the endoscope 10 attaches a blue identification ring (not shown) to the ring mounting portion 20 of the endoscope 10 of the “zoom function and large diameter insertion portion” type by the same procedure as described above. The surgeon can recognize at a glance that the endoscope 10 is a “zoom function and large diameter insertion portion” type endoscope even from a distance. Therefore, it is ensured that an operator who intends to perform an endoscopic operation on a patient erroneously selects another endoscope (for example, an endoscope of a “no zoom function and large diameter insertion portion” type). Can be prevented.
Further, when the surgeon manually moves the identification ring 30 (or another color identification ring) forward with respect to the operation unit 11 with a slightly strong force, the four retaining protrusions 31 are slightly elastically deformed (and the identification ring). 30 or another color identification ring is elastically deformed slightly in the diameter-expanding direction, so that the locking projection 21 is moved forward (the identification ring and the retaining protrusion 31 are returned to the free state immediately after getting over). If the ring 30 (or another color identification ring) is moved forward along the insertion portion 12 as it is, it can be removed forward from the distal end portion of the insertion portion 12.

As described above, by using the identification ring 30 (and other identification rings of different colors), identification information (spec) of the endoscope 10 can be easily recognized even from a distance.
Moreover, the identification information provided to the endoscope 10 can be easily changed by simply changing the identification ring 30 to a different color identification ring.
Further, since the identification ring 30 is annular (because the central angle is larger than 180 °), it is difficult to drop off from the ring mounting portion 20 and is visible from any direction (except for the axial direction of the insertion portion 12 in a straight state). .
The identification ring 30 (and another color identification ring) removed from the endoscope 10 can be reused (reattached to the endoscope) by cleaning and disinfecting separately from the endoscope 10. is there.

Next, a second embodiment of the present invention will be described with reference to FIGS. Note that the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
In this embodiment, three identification rings 35, 37, 39 of the same color are prepared. The material and inner diameter of each identification ring 35, 37, 39 are the same as those of the identification ring 30, and each identification ring 35, 37, 39 has a retaining protrusion 31. A large number (only three are shown in FIG. 5) of through-holes 36 are formed in the identification ring 35, and a large number of notches 38 (only two are shown in FIG. 6) are formed at the front edge of the identification ring 37. In addition, a number of notches 40 having different shapes from the notches 38 are formed on the front edge of the identification ring 39 (only two are shown in FIG. 7). Since the basic structure of the identification rings 35, 37 and 39 is the same as that of the identification ring 30, they can be selectively attached to and detached from the ring mounting portion 20 in the same manner as the identification ring 30.
In a medical institution having the endoscope 10, for example, the identification ring 35 means a “no zoom function and large diameter insertion part” type, and the identification ring 37 means a “zoom function and large diameter insertion part” type. The identification ring 39 means a “zoom function and small diameter insertion portion” type. Therefore, if the surgeon selectively attaches the identification rings 35, 37, and 39 to the endoscope 10 (ring attachment portion 20), the surgeon will recognize that the endoscope 10 is “no zoom function and large diameter insertion. It is possible to recognize at a glance whether it is a "part" type, a "zoom function and large diameter insertion part" type, or a "zoom function and small diameter insertion part" type. Thus, also in this embodiment, the same effect as the first embodiment can be obtained.

Next, a third embodiment of the present invention will be described with reference to FIG. It should be noted that the same members as those in the previous embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
The basic structure of the endoscope 10A of the present embodiment is the same as that of the endoscope 10, except that an annular fixed identification portion 42 located immediately before the locking projection 21 is formed on the ring mounting portion 20. Different from the endoscope 10. The fixed identification part 42 is formed by attaching a color different from the ring attachment part 20, for example, green, to the surface of the ring attachment part 20. In the present embodiment, the fixed identification portion 42 (green) indicates that the hardness (hardness to bend) of the insertion portion 12 is soft.
When the identification ring 30 is attached to the ring mounting portion 20 of the endoscope 10A, a part of the fixed identification portion 42 is exposed to the outside as shown in FIG. Accordingly, the surgeon can recognize at a glance that the endoscope 10A is of the “no zoom function and large diameter insertion portion” type and the hardness of the insertion portion 12 of the endoscope 10A is soft even from a distance.
In addition, when the hardness of the insertion portion 12 of the endoscope is hard, a fixed identification portion having a color different from green, for example, orange, is formed on the ring mounting portion 20, and the meaning of this fixed identification portion (orange) is defined. You may implement as "the hardness of an insertion part is hard."

Next, a fourth embodiment of the present invention will be described with reference to FIG. It should be noted that the same members as those in the previous embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
Although the fixed identification part 42 is formed also in the ring attachment part 20 of the endoscope 10B of the present embodiment, the fixed identification part 42 is made closer to the locking projection 21 than the endoscope 10A. It is formed in the state. Therefore, when the identification ring 35 is attached to the ring mounting portion 20 of the endoscope 10B, the entire fixed identification portion 42 is covered by the identification ring 35. However, as shown in the figure, the fixed identification portion 42 is exposed to the outside through each through-hole 36 of the identification ring 35, so that the same effect as in the third embodiment can be exhibited.
In addition, since the distance between the locking projection 21 and the fixed identification portion 42 (and other color fixed identification portions) is shortened, the entire endoscope is small and the front and rear dimensions of the cylindrical portion 19 (ring attachment portion 20). Even if it is short, there exists an advantage that the fixed identification part 42 (or fixed identification part of another color) can be formed in the cylindrical part 19. FIG.
Although not shown, when the identification ring 37 or the identification ring 39 is attached to the endoscope 10B instead of the identification ring 35, the fixed identification unit 42 is exposed to the outside through the notch 38 and the notch 40. Therefore, the same effect as when the identification ring 35 is attached can be obtained.

Next, a fifth embodiment of the present invention will be described with reference to FIG. It should be noted that the same members as those in the previous embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
Two locking projections 21 (not shown) are formed on the cylindrical portion 19 (ring mounting portion 20) of the endoscope 10C of the present embodiment with the respective front and rear positions shifted from each other. On the other hand, a red identification ring 30 and a green identification ring 44 (the structure and material are the same as those of the identification ring 30) are attached. The red identification ring 30 means that the endoscope 10C is of the “no zoom function and large diameter insertion portion” type, and the green identification ring 44 is that the insertion portion 12 of the endoscope 10C has a soft hardness. Means. Therefore, this embodiment can also exhibit the same effect as that of the third embodiment.
Further, by attaching the identification ring 30 and the identification ring 44 to the endoscope 10C in place of the identification rings of other colors, identification information having another meaning regarding the purpose of use and the hardness of the insertion portion 12 is given to the endoscope 10C. Can be granted.
If three or more identification rings are attached to the ring mounting portion 20 of the endoscope 10C (three or more locking projections 21 are formed), three or more types of identification information are given to the endoscope 10C. it can.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. It should be noted that the same members as those in the previous embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
In the present embodiment, a ring that is an annular recess centered on the axis of the tube support 23 (the axis of the universal tube 24 in a linear state) is provided on the surface of the tube support 23 of the processor side extension 13 of the endoscope 10D. A mounting portion 46 is formed.
The identification ring 47 is a C-ring formed of a resin material that is red and has greater elasticity than the identification ring 30, and has a central angle of about 285 °. The width of the identification ring 47 is substantially the same as that of the ring mounting portion 46, the thickness thereof is larger than the depth of the ring mounting portion 46, and the inner diameter in the free state is slightly smaller than that of the ring mounting portion 46. This identification ring 47 is positioned around the tube support portion 23 from the side (in a direction perpendicular to the axis of the tube support portion 23) in a state in which the opening formed between the both ends is elastically deformed in a direction to expand the opening. It can be fitted to the ring mounting portion 46 by returning to a free state thereafter.
The identification ring 47 which is red in the medical institution having the endoscope 10D means the “no zoom function and large diameter insertion portion” type. Therefore, the surgeon can recognize at a glance that the endoscope 10D is of the “no zoom function and large diameter insertion portion” type even from a distance.
The medical institution has the same configuration as the identification ring 47 and has a blue identification ring (not shown), and this blue identification ring means a “zoom function and large diameter insertion portion” type. Therefore, if a blue identification ring (not shown) is attached to the ring attachment portion 46 by the same procedure as described above on the endoscope 10D having the “zoom function and large diameter insertion portion” type, the operator can attach the endoscope 10D to the endoscope 10D. It can be recognized at a glance even from a distance that it is a “large-diameter insertion section with a zoom function” type.
Further, if the elastic deformation is expanded in the direction of expanding the red identification ring 47 and other color identification rings (openings formed between both ends thereof), the red identification ring 47 and other color identification rings are attached to the ring mounting portion. 46 can be removed.
Thus, also in this embodiment, the same effect as the first embodiment can be obtained. Although the identification ring 47 is a C-ring (although it is not a complete ring), its central angle is about 285 ° (since it is larger than 180 °), and it is difficult to drop off from the tube support portion 23 (ring attachment portion 46) and ( Visible from any direction (except the axial direction of the universal tube 24 in a straight line state).
Furthermore, since the identification ring 47 (and the blue identification ring) of the present embodiment is a C ring, the identification ring 47 (and the blue identification ring) is not passed through the universal tube 24 from the end on the connector part 14 side. Since it can be attached to and detached from the tube support portion 23 (ring attachment portion 46) from the side, attachment and detachment with respect to the endoscope is easier than in the previous embodiment.

Although the present invention has been described using the present embodiment, the present invention can be implemented with various modifications.
For example, the color and shape of each identification ring are not limited to those described above, and any color or shape may be used as long as it can be distinguished from other identification rings. In addition, the meaning (the purpose of identification) of each identification ring is not limited to the above (the presence / absence of a zoom function, the diameter of the insertion portion, the hardness of the insertion portion 12, etc.), for example, for endoscope cleaning and disinfection. Completion / non-completion may be represented.
The number of retaining protrusions 31 provided on the inner peripheral surface of the identification ring may be other than four (two, three, etc.), and the circumferential spacing between the retaining protrusions 31 may be unequal. .
Further, the locking protrusion 21 and the retaining protrusion 31 are omitted from the ring mounting portion 20 and the identification ring 30 (and other identification rings), and identification is performed using the elastic force of the identification ring 30 (and other identification rings). The ring 30 (and other identification ring) may be attached to the ring mounting portion 20 in a fixed state.
The cross-sectional shape of the cylindrical portion 19 and the tube support portion 23 may be a substantially circular shape that is not a perfect circle, and the sectional shape of each identification ring is a substantially circular shape (substantially arc shape) that is not a perfect circle (arc shape). It may be.
Further, each identification ring may have any cross-sectional shape as long as the central angle is larger than 180 °, and each identification ring may be made of rubber.
In addition, an identification ring may be attached to a portion of the operation unit 11 located behind the treatment instrument insertion protrusion 17.

Further, the C ring-shaped identification ring 47 (and other color identification rings) of the sixth embodiment is attached to the cylindrical portion 19 (ring mounting portion 20), or a plurality of C ring-shaped identification rings are attached to the tube support portion. 23 and the ring mounting portion 20 may be mounted side by side.
Further, a fixed identification portion 42 is formed on the tube support portion 23 so that the fixed identification portion 42 is exposed when the identification ring 47 (and another color C-ring-shaped identification ring) is attached to the tube support portion 23. Alternatively, the through hole 36 and the notches 38 and 40 may be formed in the identification ring 47 (and other color identification rings) to expose the fixed identification portion 42.
Further, an identification ring may be attached to both the cylindrical portion 19 and the tube support portion 23.
Furthermore, although the endoscope of each of the above embodiments is a so-called flexible endoscope, the present invention is applied to a rigid endoscope, or a portable endoscope that does not include a portion corresponding to the processor side extending portion 13. The present invention may be applied to the operation unit.
The present invention may also be applied to industrial endoscopes.

DESCRIPTION OF SYMBOLS 10 10A 10B 10C 10D Endoscope 11 Operation part 12 Insertion part 13 Processor side extension part 14 Connector part 15 Bending operation lever 16 Bending part 17 Treatment tool insertion protrusion 18 Rubber cap 19 Cylindrical part 20 Ring attachment part 21 Locking Projection 22 Folding rubber 23 Tube support 24 Universal tube 25 Folding rubber 30 Identification ring 31 Retaining protrusion 35 Identification ring 36 Through hole 37 Identification ring 38 Notch 39 Identification ring 40 Notch 42 Fixed identification part 44 Identification ring 46 Ring Mounting part 47 Identification ring

Claims (9)

In an endoscope including an operation unit and an insertion unit extending from the operation unit,
Form a ring mounting part on the operation part,
An endoscope characterized in that an identification ring having a central angle larger than 180 ° can be attached to and detached from the ring mounting portion. In an endoscope including an operation unit, an insertion unit extending from the operation unit, and a processor side extension unit extending from the operation unit toward the opposite side of the insertion unit and connected to a processor,
Forming a ring mounting part on at least one of the operation part and the processor side extension part,
An endoscope characterized in that an identification ring having a central angle larger than 180 ° can be attached to and detached from the ring mounting portion. The endoscope according to claim 1 or 2,
The peripheral surface of the base end portion of the insertion portion having flexibility is covered with a fastening rubber that is cylindrical and hard to be bent from the insertion portion, and the base end is fixed to the operation portion,
The operation portion has a forceps port communicating with the internal conduits of the operation portion and the insertion portion, and a cylindrical portion having a substantially circular cross section located between the forceps port and the folding rubber,
An endoscope in which the ring mounting portion is formed on the cylindrical portion. The endoscope according to any one of claims 1 to 3,
An endoscope in which the identification ring is molded from an elastic material. The endoscope according to any one of claims 1 to 4,
An endoscope in which the identification ring is a C ring. The endoscope according to any one of claims 1 to 5,
A locking projection is formed on the ring mounting portion,
An endoscope in which a retaining protrusion that engages with the locking protrusion from the opposite side to the insertion portion when formed on the inner surface of the identification ring is attached to the ring attachment portion. The endoscope according to any one of claims 1 to 6,
The endoscope which formed the fixed identification part exposed outside when the said identification ring was attached to the said ring attachment part. The endoscope according to claim 7,
Forming the fixed identification part on the ring mounting part;
An endoscope in which a through hole or a notch for exposing the fixed identification portion is formed in the identification ring. The endoscope according to any one of claims 1 to 8,
An endoscope in which the ring attachment portion can attach a plurality of the identification rings.