JPH02278220A - Endoscope device - Google Patents

Abstract

PURPOSE:To prevent a mirror from falling off and being cracked due to thermal stress, and also, to hold the metallic vapor-deposited surface of the mirror from dust, contamination, corrosion, etc. by supporting the outside periphery of the mirror by a cylindrical body, and covering the metallic vapor-deposited surface of the mirror with an elastic body. CONSTITUTION:This device is provided with a cylindrical body 45 in which a mirror 42 is installed and which executes support in a peripheral edge part of the mirror 42, and an elastic member 50 for covering the metallic vapor- deposited surface 144 for forming the reflecting surface of the mirror 42. In such a case, the mirror 42 is installed in a cylindrical body 45, and the peripheral edge part of the mirror 42 is supported by the inside wall surface of the cylindrical body 45. The cylindrical body 45 is fitted externally to a supporting member 46, and the supporting member 46 does not adhere directly to the mirror 42. In such a way, it is prevented that the mirror falls off and cracked due to thermal stress, and also, the metallic vapor-deposited surface can be protected from flawing and corrosion.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to an endoscope apparatus having a mirror for changing the viewing direction.

[Prior art and problems to be solved by the invention] In recent years, by inserting an elongated insertion section into a body cavity, it is possible to observe internal organs, etc., and to insert forceps into a forceps channel as necessary. BACKGROUND ART Medical endoscopes, which can be used to collect in-vivo tissues and diagnose affected areas in detail, are widely used. Furthermore, in the industrial field, industrial endoscopes that can observe and inspect the interiors of boilers, turbines, engines, chemical plants, etc. are widely used.

In particular, by inserting the insertion section of the medical endoscope into a body cavity,
When observing the affected area, if the affected area is axially forward of the distal end of the insertion tube, it is easier to see it using a direct-viewing endoscope. On the other hand, when observing the inner wall surface of the body cavity on the side perpendicular to the insertion direction, it is easier to observe using a side-viewing endoscope. You can also roughly observe a large area or precisely observe a narrow area using I! Observations can be made more easily by using an endoscope that has a different angle of view depending on what is being observed.

However, endoscopes are expensive, and it is extremely uneconomical to prepare endoscopes suitable for these various observation targets. In order to deal with such problems, Utility Model Application No. 60-592
Publication No. 15 discloses an optical adapter that is configured to be detachably attached to the distal end of an endoscope insertion section, and is provided with a rotatable mirror in front of the endoscope imaging optical system to change the viewing direction. .

Also, patent application 11f filed by the applicant? 63-3322
In No. 60, it is configured to be detachable from the tip of the endoscope insertion section, and a rotatable mirror is provided in front of the inner 1A mirror imaging optical system, and the aluminum vapor-deposited surface that constitutes the reflective surface of the mirror and the mirror support are installed. Techniques in which members are fixed have been proposed.

However, in the above-mentioned prior art Japanese Utility Model Application Publication No. 60-59215, the mirror is fixed to the mounting frame with a set screw.
Since the mirror is screwed, the material of the mirror inside the shell needs to be metal, but if the mirror is made of metal, the reflective surface needs to be finished to a mirror finish, which reduces the production cost of the mirror. increases, and the metal surface is easily oxidized.
There is a problem that it becomes cloudy in a short period of time.

In addition, in Japanese Patent Application No. 63-332260, a glass coated with aluminum is used as a mirror, and the mirror support member and the mirror are fixed using an adhesive to prevent scratches on the aluminum coated surface. It is fixed by gluing. However, when the temperature becomes high or low, thermal stress is generated in the adhesive due to the difference in thermal expansion coefficient between the mirror support member made of metal and the mirror made of glass, and this stress acts on the adhesive as shear stress. Since the adhesive is generally weaker in shear than in tension, repeated application of thermal stress may cause the adhesive to peel off, resulting in the mirror falling off or cracking.

The present invention has been made in view of the above circumstances, and provides a highly safe endoscope 1 device that prevents the mirror from falling off or cracking due to thermal stress, and does not cause scratches or corrosion on the metal-deposited surface. The purpose is to

[Means and effects for solving 1!11] The endoscope device of the present invention includes a cylinder housing a mirror therein and supporting the peripheral edge of the mirror, and a metal W & W forming a reflective surface of the mirror.
and an elastic member that covers the wearing surface.

In the present invention, the mirror is housed inside the cylindrical body, and the inner wall surface t of the cylindrical body is
The peripheral edge of the mirror is supported. The cylindrical body is fitted onto the supporting member, so that the supporting member is not bonded to the mirror at zero contact.

[Example 1 Hereinafter, the present invention will be described in detail with reference to the drawings.

1 to 12 relate to the first embodiment of the present invention, FIG. 1 is a sectional view of the tip optical adapter, and FIG. 2 is a line A-A in FIG. 1.
3 is a detailed view of part B in Figure 1, Figure 4 is an explanatory diagram of the entire endoscope device, Figure 5 is a circuit diagram of the mirror rotation control device, and Figure 6 is a light source. Cross-sectional view of the connector, No. 7
The figure shows a first modification of FIG. 6, which is a sectional view of the light source connector. FIG. 8 shows a second modification of FIG. 6, which is a sectional view of the light source connector. A cross-sectional view of the light source connector in a modification of the hook 3 in the figure, FIG. 10 is an external view of the rotation control device,
Fig. 11 is an explanatory diagram of another rotation control device, and Fig. 12 is an explanatory diagram of another rotation control device.
1 is a waveform diagram of a control signal output from the control device of FIG. 1. In FIG. a drum-type endoscope 1114 whose base end is fixed to the drum 3 and is wound up and stored on the drum 3;
Light guide cable 6 in this drum type 1211!4
a light source 1117 that supplies illumination light; a video processor 9 that processes image signals sent from the drum endoscope 4 via the signal cable 8;
The television monitor 11 that displays the video signal output from the drum endoscope 4 on the screen, the tip optical adapter 16 provided at the tip of the drum endoscope 4, and the viewing direction of the tip optical adapter 16 are connected via a connecting cable 15. and a rotation control device 12 that controls the rotation.

The insertion section 2 is constructed by connecting a hard tip 14 to the tip of a flexible tube 13.

A tip optical adapter 16 as shown in FIG. 1 is removably attached to the tip 81s14.

The distal optical adapter 16 includes a first hard part 17 located on the distal end side, an elastic part 18 connected to the rear part of the first rigid part 17, and an elastic part 18 connected to the rear part of the elastic part 18. a second hard part 19 detachably connected to the tip part 14;
It is equipped with

The second rigid part 19 has a lens frame 21 and a mirror frame 22, and the rear end of the lens frame 21 has the tip part 1.
4 are stored. A first male threaded portion 23 and a second male threaded portion 24 forming a double thread to prevent loosening are provided on the outer circumferential wall of the tip portion 14.
The inner periphery of the rear end of the lens frame 21 is screwed together. As shown in FIG. 2, this lens frame 21 is provided with an observation hole 26 that coincides with the longitudinal center of the tip optical adapter 16, and an illumination hole 27 is provided around this IIJ observation hole 26. and an electric wire through hole 28 through which the electric wire passes are provided in the longitudinal direction. A family gift 1t4 is placed in the through hole 26 for IIW4.
An angle-of-view changing lens system 29 whose optical axis coincides with an objective lens system (not shown) on the side is provided. In addition, the illumination through hole 27
is provided with a light distribution lens system 31 that transmits illumination light supplied from the endoscope 14 side.

A substantially cylindrical electric contact 34 is provided in the electric wire through hole 28 so as to be slidable in the longitudinal direction by being biased by a coil spring, and when the lens frame 21 is attached to the inner ring 114, the inner ring protrudes forward. The electrical contact (not shown) on the 114 side is electrical contact 3.
4 is pressed to bias the coil spring and make it slide forward.

The electrical connection between the electrical contact 34 and the electrical contact on the endoscope 114 side is ensured because they are constantly pressed by the coil spring.

Note that the rear end and tip 1 of the lens frame 21 and the mirror frame 22
A protective member 40 is fitted around the outer periphery of 4.

The mirror frame 22 is formed into a substantially cylindrical shape, with a closed front end and an open rear end.

The front end of the lens frame 21 is fitted into the rear end of the mirror frame 22 and fixed to each other by screws 35 screwed in the radial direction. An observation window 41 is formed on the outer peripheral wall of the mirror frame 22, and the optical axis of the angle-of-view changing lens system 29 is bent at a substantially right angle to pass through the observation window 41 inside the mirror frame 22. The mirror 42 is a mirror support member 46
It is fixed to a support frame 45 provided in the.

In FIG. 3, the cylindrical mirror support frame 45 is fixed on the outer surface of the mirror support member 46, and the support frame 45 is attached to the mirror 42 with a gap provided between it and the support member 46.
For example, it is fixed with adhesive or the like.

The mirror 42 is made of a transparent member such as glass with a metal vapor-deposited surface 144 made of aluminum, gold, etc. formed on one end surface, and this metal vapor-deposited surface 144 is attached to the mirror support member 4.
It is located on the 6th side.

Furthermore, the gap between the mirror 42 and the mirror support member 46 is filled with a filler 50 that has elasticity after hardening, so as to cover the metal deposition surface 144.

The mirror support member 46 passes through the front closed portion of the mirror frame 22 in alignment with the center in the longitudinal direction, and is connected to a flexible shaft 44 that is supported by a bearing member 43 and transmits rotational force. There is.

The first rigid part 17 houses a motor 47 and a gear box 47a, and includes a motor support member 51 with an open front part and a closed rear part. A drive shaft (not shown) of the motor 47 provided at the tip side in the motor support member 51 is connected to a gear box 47a.
The gear box 47a reduces the rotational speed transmitted from the motor 47, and outputs the reduced rotational speed to a drive shaft 48 provided at the rear end. The drive shaft 48 of the gear box 47a passes through the closed portion at the rear in the diagonal direction, and is provided so that the center of the rotation axis coincides with the longitudinal center of the tip optical adapter 16. A shaft coupling 49 is fitted onto the drive shaft 48 that protrudes from the rear end surface of the motor support member 51, and this shaft coupling 49 is connected to the shaft 44.
The rotational force generated by the motor 47 can be transmitted to the shaft 44.

The front outer peripheral wall of the mirror frame 22 and the motor support portion 1F
Receptacle members 52 and 53 are fitted onto the rear outer circumferential wall of 451, respectively, and are fixed by screws 54 and 55 screwed in the radial direction. A narrow diameter portion 57 is formed at the front end of the member 52 for the receiver on the mirror frame 22 side, and at the rear end of the member 53 for the receiver on the motor support member 51 side. A groove 58 is formed. This groove 58 has an elastic portion 1
The front end and the rear end of a coil spring 59 as an elastic member forming 8 are screwed together, and the shaft 44 is inserted therein. Parallel pins 61, 61 as locking means are driven into both ends of the coil spring 59 in the radial direction, and the receivers lock the members 52, 53 and the coil spring 59. The receiver is provided with cylindrical covers 62 and 63 screwed onto the outer peripheral wall surfaces of the members 52 and 53. The front inner peripheral wall surface of the cover 62 on the side of the mirror frame 22 is provided with a coil spring 5.
The head of the parallel bottle 61 is pressed down so that the parallel bottle 61 driven into the hole 9 does not fall off.

Similarly, the rear inner circumferential wall surface of the cover 63 on the side of the motor support member 51 presses down the head of the parallel bottle 61 to prevent it from falling off.

An annular holding member 64 for holding the motor 47 is screwed onto the open inner circumferential wall of the front portion of the motor support member 51, and the open portion of the front portion is closed by a tip cover 66. 1! on the peripheral wall of this motor support member 51! A rice bran storage space 81 is provided, and within this space 81, a 21 wire hole 68a inserted through an electric wire hole 82, 82 passing through the front part of the support member 51 and an electric wire hole 83 passing through the rear part of the support member 51 are inserted. The electric wire 68b inserted through the .83 is loosened and connected to each other in consideration of the length of the repair electric wire. Further, a filling member 87 having rubber elasticity is bonded to the wire hole 82.83 to prevent liquid or the like from entering the wire storage space 81 from the wire hole 82.83.

The front power distribution 1168a is connected to a wire connecting portion 67 provided at the front end of the motor 47, and the wire 68b is connected to the electrical contact 34.

The electric wire storage space 81 is covered by a cover 84 that forms part of the outer shape of the motor support member 51, and watertightness is maintained between the cover 84 and the motor support member 51 by O-rings 86 and 86. There is.

By providing the electric wire storage space 81 as described above, the electric wires 68a and 68b are
The maintainability of the tip optical adapter 16 is improved. Further, since the electric wires 68a and 68b can be connected in the electric wire storage space 81 which is kept watertight by the O-ring 86, corrosion of the connecting portion can be prevented.

On the other hand, a light source connector 91 shown in FIG. 6 is provided at the rear end of the light guide cable 6. As shown in FIG. This light source connector 91 includes a connector main body 94 consisting of a narrow cylindrical narrow portion 92 on the tip side and a large diameter portion 93 for a large diameter cylinder on the base side. A columnar O-rad lens 96 is housed and fixed.

A tip of a light guide fiber 97 is inserted into the large diameter portion 93 so as to face the rear end of the rod lens 96 and whose other end reaches the endoscope side so that the optical axes coincide with each other. .

Note that the rod lens 96 may be held as shown in FIG. 7. In the same figure, the inner diameter of the narrow diameter portion 92 is a large diameter portion 98 on the tip side and a small diameter portion on the light guide 97 side end. 99, a portion sandwiched between the large diameter portion 98 and the small diameter portion 99 is an intermediate diameter portion 101, and a cylindrical support member 102 having the same inner diameter as the inner diameter of the small diameter portion 99 is fitted into the large diameter portion 98. has been done. Further, the support member 102 and the small diameter portion 99 support a rod lens 96 disposed within the small diameter portion 92.

By supporting the rod lens 96 of the light source connector 91 at two points, the tip end and the rear end, the rod lens 96 with high straightness (less waviness) can be moved from the rod lens 96 with low straightness (with large waviness). The optical axis can be uniformly aligned up to the lens 96. Therefore, the rod and lens 96 with low straightness accuracy can also be used, so the production cost of the light source connector 91 can be reduced.

Further, as shown in FIG. 8, a cylindrical support member 103 made of a shock-absorbing material such as resin or rubber may be provided at the position of the small diameter portion 1199 in FIG. 7.

Furthermore, as shown in FIG. 9, an O-ring 104 may be provided instead of the support member 103.

In this way, in FIGS. 8 and 9, the rear end of the rod lens 96 is held by the support member 103 made of a cushioning material, so that even if an impact is applied to the narrow diameter portion 92, the cushioning material Since the impact is absorbed by the lens 96, the impact force acting on the Rondo lens 96 can be reduced, and a durable light source connector can be obtained.

On the other hand, switches are arranged on the operation panel 106 of the rotation control device 12, as shown in FIG. These switches are the power switch 107 that turns the power on and off.
, a lever switch 108 for continuous rotation, a lever switch 109 for instantaneous rotation, and a variable resistor 111 for adjusting rotation speed.

These switches are wired as shown in FIG.

In FIG. 5, a power supply circuit 11 is included in the rotation control device 12.
2 is provided. This power supply circuit 112 is connected to an external power supply via the power switch 107, and is further connected to the rotation speed adjusting variable resistor 111. The power supply circuit 112 is provided with a constant voltage output terminal, a + side variable voltage output terminal, and a one side variable voltage output terminal. The constant voltage output terminal is connected to the input terminal 108d of the continuous rotation lever switch 108. This switch 108 is 1
It is a manual 3-output switch, and is configured to stop at the position where the output is selected by operating the lever. Output terminal 108 of switch 108
b is the input terminal 10 of the instantaneous rotation lever switch 109;
Connected to 9d. This switch 109 is a one-man 3-output switch similar to the continuous rotation lever switch 108, but by operating the lever, the output ends 109a, 10
When the selection of 9C is completed, the output terminal 109b is always returned.

The output terminal 108a of the lever switch 108 is connected to the output terminal 109a of the lever switch 109, and a relay part 104a forming the relay switch 104 is connected to the output terminal 108a of the lever switch 108.
It is connected to the. Further, the output terminal 108C of the lever switch 108 is the output terminal 109c of the lever switch 109.
It is also connected to a relay section 103a that constitutes a relay switch 103.

The relay switch 113 has switches 113b and 113c that perform switching in conjunction with each other, and the relay switch 114 similarly has switches 114b and 114C that perform switching in conjunction with each other. switch 1
13b, 113c.

114b and 114C are two-man power one-output switches, and the output terminals 113 of switch 113b and switch 11.4b
d and 114d are connected to the negative side voltage output terminal of the power supply circuit 112, and the input terminals 113e and 114e are ovens. is connected to one side variable voltage output terminal of the power supply circuit 112, and input terminals 113f and 114f serve as ovens.

The output terminal of the switch 113b and the output terminal of the switch 114C are connected to the output terminal 12a of the rotation control device 12, and the output terminal of the switch 113C and the output terminal of the switch 114b are connected to the output terminal 12b of the rotation control device 12. There is.

The output terminals 12a and 12b pass through the connection cable 15, the drum 3, and the insertion portion 2, reach the tip optical adapter 16 via the electrical contact 34, and are connected to the motor 47. Note that a slip ring 116 is provided inside the drum 3 so that power can be supplied even when the drum 3 rotates.

Next, the operation of the rotation control device @12 will be explained.

Power switch 1 of operation panel 106 of rotation control device 12
When 07 is turned on, power is supplied to the power supply circuit 112 from the external power supply. The power supply circuit 112 supplies a constant voltage to the continuous rotation lever switch 108. The rotation speed is set by rotating the knob of the rotation speed adjustment variable resistor 111.

If continuous rotation is to be performed after this, the continuous rotation lever switch 108 is operated. For example, when the output terminal 108a is selected, a constant voltage is supplied to the relay part 114a, and the switches 114b and 114c simultaneously switch on the input terminals 114d and 1.
Select 14g.

When the input terminals 114d and 114CJ are selected, the + side variable voltage output of the power supply circuit 112 is outputted to the output terminal 12b, and the - side variable voltage output is outputted to the output terminal 12a. The light is supplied to the motor 47 of the distal optical adapter 16 via the endoscope 4, and the motor 47 rotates clockwise, for example.

Further, when the output terminal 108C of the lever switch 108 is selected, a constant voltage is supplied to the relay part 113a, and the switches 113b and 113c select the input terminals 113d and 1130 at the same time. As a result, the + side variable voltage output of the power supply circuit 112 is supplied to the output terminal 12a, the - side variable voltage output is supplied to the output terminal 12b, and further supplied to the motor 47.

This causes the motor 47 to rotate to the left.

On the other hand, when performing instantaneous rotation, the instantaneous rotation lever switch 109 is operated. For example, when output terminal 109a is selected, 1. Terminal 108 of continuous rotation lever switch 108
terminal 109 of instantaneous rotation lever switch 109 via b
The constant voltage supplied to d is passed through terminal 108a to relay part 1.
14a, and similarly rotates the motor 47 clockwise.

In addition, when the output terminal 109c@ is selected, the relay section 113
A constant voltage is supplied to a, and the motor 47 rotates to the left.

When the instantaneous rotation lever switch 109 is released, it immediately returns to the terminal 109b and the motor 47 stops rotating. Therefore, the continuous rotation lever switch 108
The mirror 42 can be operated quickly compared to the mirror 42
Fine adjustment of the stop position can be easily made.

By providing the continuous rotation lever switch 108 and the instantaneous rotation lever switch 109 in the rotation control bag @12 in this way, the stop position of the mirror 42 can be easily adjusted, improving operability. I can do it.

In addition, by making the output of the rotation control device 12 a variable voltage, the rotation speed of the rotation mirror 42 can be set arbitrarily, and a rotation speed suitable for the inspection purpose can be obtained, which improves work efficiency when inspecting the inner surface of a vibrator, for example. .

Note that a pulse width modulation type power source as shown in FIGS. 11 and 12 may be used.

In FIG. 11, the N source circuit 117 is of a pulse width modulation type, and the pulse width is adjusted by a pulse width adjustment variable resistor 118 connected to the power supply circuit 117. The pulses output from the power supply circuit 117 have a waveform as shown in FIG. 12(a) when the motor 47 rotates at a low speed, and as shown in FIG. 12(b) when the motor 47 rotates at a high speed.
The waveform will be like this.

The operation of the tip optical adapter 16 configured as described above will be explained.

A tip optical adapter 16 is screwed onto the tip portion 14 of the inner gift #14. At the same time as they are screwed together, the electrical contacts 34 on the adapter 16 side and the electrical contacts on the endoscope 14 side come into contact to establish an electrical connection.

After attaching the adapter 16 to the wedding ring &*4, it is inserted into a site to be observed, such as a curved pipe.

When inserted into the observation site, the rotation control device 12 rotates the mirror 4.
Drive signals such as speed control, normal rotation/reversal control, continuous rotation, and instantaneous rotation are connected to the electric contacts 34 and 1tli68a, 68.
It is output to the temotor 47 via b. The motor 47 rotates according to the drive signal, and this rotation is decelerated by a gear box 47a and transmitted from the shaft 44 to the mirror support member 46.

The mirror support member 46 rotates to the mirror 42 via the support frame 45. The observation site on the inner wall surface of the pipe is illuminated with illumination light emitted from the light distribution lens system 31 and reflected by the mirror 42. The illuminated image of the observation region is reflected by the mirror 42 and enters the angle-of-view changing lens system 29, whereupon the observation image is transmitted to an objective lens system (not shown) inside the distal end portion 14.

When the observation point Iis is high or low, the mirror support member 46 and the mirror 42 exhibit different expansion amounts, but since the mirror support member 46 and the mirror 42 are not directly fixed, the difference in expansion amount causes shear stress. It never happens. Therefore, it is possible to prevent the mirror 42 from falling off due to stress caused by high or low temperatures.

Furthermore, since an elastic filler 50 is filled between the mirror 42 and the mirror support member 46, external shocks are not directly transmitted to the mirror 42, and the mirror 42 is prevented from falling off from this surface. It can be prevented.

13 to 15 relate to the second embodiment of the present invention,
Figure 13 is a cross-sectional view of the tip optical adapter, and Figure 14 is a cross-sectional view of the tip optical adapter.
15 is a sectional view taken along the line C-C in Figure 3, and D in Figure 13.
This is a detailed diagram of 'f'Js.

This embodiment differs from the first embodiment in that an elastic body 121 such as rubber is sandwiched between the metal vapor deposited surface 144 of the mirror 42 and the mirror support member 46. Further, a plurality of claw portions 122, 122., 122. ...is established.

Since the claw portion 122 protrudes inward from the inner diameter of the support frame 45 in this manner, even if the adhesive that fixes the mirror 42 and the support frame 45 is peeled off, the mirror 42 will not be caught by the claw portion 122. , it will not fall off, so a safer configuration can be achieved.

Other configurations, operations, and effects are the same as those in the first embodiment.

Although each of the above embodiments describes a tip optical adapter that is detachably attached to an endoscope, the present invention is not limited to this.
It may also be applied to a mirror fixedly provided on the inner 81 mirror.

[Effects of the Invention] As explained above, according to the present invention, the outer periphery of the mirror is supported by a cylindrical body, and the metal covering surface of the mirror is covered with an elastic material, thereby preventing the mirror from falling off due to thermal stress. Can prevent cracking. Furthermore, the modern vapor-deposited surface of the mirror can be protected from dust, dirt, corrosion, etc., the reflectance of the mirror will not decrease, and the mirror can have a long life and be highly safe.

[Brief explanation of drawings]

1 to 12 relate to the first embodiment of the present invention, FIG. 1 is a sectional view of the tip optical adapter, and FIG. 2 is a line A-A in FIG. 1.
One-way sectional view, Figure 3 is a detailed view of part B in Figure 1, Figure 4 is an explanatory diagram of the entire endoscope device, Figure 5 is a circuit diagram of a mirror rotation control device, and Figure 6 is a light source. 7 is a sectional view of the light source connector, which is a first modification of FIG. 6, and FIG. 8 is a sectional view of the light source connector, which is a second modification of FIG. 6. , FIG. 9 is a third modification of FIG. 6, and is a sectional view of the light source connector, FIG. 10 is an external view of the rotation control device, FIG. 11 is an explanatory diagram of another rotation control device, and FIG. 11
FIGS. 13 to 15 are waveform diagrams of control signals output from the control device in the figure, and FIGS. 13 to 15 relate to the second embodiment of the present invention. FIG. -c
15 is a detailed view of section D in FIG. 13. 1... Endoscope device 4... Drum type endoscope 16
...Tip optical adapter 17...First hard part 18...Elastic part 19...
Second hard part 42...Mirror 45...Support frame
46... Mirror support member 50... Filler Fig. 11 Fig. 12

Claims (1)

[Scope of Claims] An endoscope device having a mirror for changing the viewing direction at the distal end of the insertion section, further comprising: a cylindrical body that houses the mirror and supports the mirror at its peripheral edge; An endoscope device characterized in that a metal-deposited surface forming a reflective surface of the mirror is covered with an elastic member.