JP2000014635A - Endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent imperfect contact and wire disconnection at connections between a circuit board, a signal cable, and a solid image pickup element by reducing stresses generated at the connections. SOLUTION: A circuit board 60 is connected to the external lead 65 of a solid image pickup element 59 and a fixed signal cable 68 covered with a backwardly extending cable protection member 72 is connected to the circuit board 60. The solid image pickup element 59 is secured to an element frame 62 and a shield frame 64 is secured to the element frame 62. The cable protection member 72 is secured to the rear end portion of the shield frame 64 with an adhesive and stresses generated at connections between the circuit board 60, the signal cable 68, and the solid image pickup element 59 are reduced, thus enabling the prevention of imperfect contact and wire disconnection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope having a solid-state image pickup device for picking up an image of a subject at the distal end of an insertion section.

[0002]

2. Description of the Related Art A solid-state image pickup device such as a CCD for picking up an image of an object to be observed is provided at a distal end portion of an insertion portion of an endoscope. Various types of electronic endoscopes, which are endoscopes capable of recording on a recording device, have been proposed, and have recently come into general use.

An endoscope in which a solid-state image pickup device is incorporated at the distal end portion of an insertion section has an objective lens mounted in front of the solid-state image pickup device as proposed in Japanese Patent Application Laid-Open No. 4-313717, for example. A circuit board that constitutes a circuit for driving a solid-state imaging device is provided at the back of the apparatus, and a signal cable that bundles a plurality of signal lines that transmit an image signal to a base end through the insertion portion of the circuit board is connected. Is common.

[0004]

However, in the conventional endoscope as described above, the durability of the connection between the circuit board and the signal cable and the connection between the solid-state imaging device and the circuit board are particularly considered. However, stresses such as tensile stress, torsional stress, tilting stress, etc. are concentrated on the signal cable due to bending operation of the bending part of the insertion part, twisting of the insertion part, etc. In some cases, disconnection or contact failure occurred at the connection between the element and the circuit board. In this case, there is a possibility that a problem such as an increase in noise in the image or a failure to display the image may occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and reduces a stress generated at a connection portion between a circuit board, a signal cable, and a solid-state imaging device, and prevents poor contact or disconnection at the connection portion. It is an object to provide an endoscope that can prevent the endoscope.

[0006]

According to the present invention, there is provided an endoscope comprising: a solid-state image pickup device for picking up an image of a region to be observed; an element frame which is a frame holding the solid-state image pickup device; An endoscope comprising: a circuit board constituting a driving circuit; a shield frame connected to the element frame and protecting the circuit board; and a signal cable for transmitting an image signal of an image captured by the solid-state imaging device. Wherein the signal cable is fixed to the shield frame.

In the endoscope according to the present invention, it is possible to reduce the stress generated at the connection between the circuit board, the signal cable, and the solid-state image sensor, and to prevent poor contact and disconnection at these connection.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIGS. 1 to 3 relate to a first embodiment of the present invention, and FIG. 1 is a structural view of an electronic endoscope ((A) is a main body of the electronic endoscope). , (B) is an external connection device), FIG. 2 is an explanatory view including a partial cross-sectional view illustrating a configuration of a distal end portion, and FIG. 3 is an explanatory view illustrating a configuration of a connection portion between an objective optical system unit and a signal cable. It is. However, the places filled with circles (（) and triangles (△) in FIG.
This indicates that an adhesive or the like is filled.

As shown in FIG. 1, an electronic endoscope 1 includes an elongated insertion section 2 inserted into a site to be observed, an operation section 3 connected to a base end of the insertion section 2 and also serving as a grip section, It is mainly composed of a universal cord 4 having a built-in signal cable, light guide and the like extended from the side of the operation unit 3 and a connector unit 5 provided at an end of the universal cord 4.

The electronic endoscope 1 is connected via a connector 5
An external light source device 6 and a video processor 7 are detachably connected to each other so that an observation image can be displayed on a monitor 8 and the like.

The video processor 7 can be connected to a VTR deck (not shown), a video printer, a video disk, an image file recording device, and the like.

The insertion section 2 has a distal end 9 located at the distal end of the insertion section 2, a bending section 10 capable of bending to a desired angle, and a flexible tube section 11 having flexibility. .

The operation unit 3 includes a remote switch 12 for instructing operations such as freeze, release, VTR recording, and printer output of an observed image, an air / water button 13 for performing air / water operations, and a suction operation. Suction button 1 to do
4. A bending operation knob 15 for performing a bending operation of the bending portion 10 and the like are provided.

A light guide end 16 for detachably connecting to the light source device 6 protrudes from the distal end of the connector portion 5, and a connection cord extending from the video processor 7 is provided on a side portion. An electrical connector 17 for detachably connecting the connector 18 is provided. Also, the connector section 5
Is provided with a pressure pipe 19, a water supply pipe 20, and a suction mouthpiece 21, and is connected to a fluid control device and a suction device (not shown).

As shown in FIG. 2, the distal end portion 9 has a distal end main body 22 formed in a substantially cylindrical shape with a metal such as stainless steel, for example. Is attached.

The distal end body 22 is assembled with an objective optical system unit 24, a distal end of a light guide and an illumination lens, not shown, a forceps channel (not shown), an air / water nozzle, and an air / water channel. I have.

On the other hand, the bending portion 10 has a configuration in which a plurality of bending pieces 25 formed of metal or the like in a cylindrical shape are rotatably connected and bendable. The distal end portion of the bending piece 25 located at the foremost end of the bending piece 25 is fitted to the rear end portion of the distal end body 22. The outer periphery of the bending piece 25 is covered with a member having high thermal conductivity such as a blade 26 made of a metal mesh tube or the like, a bending rubber 27 formed of rubber containing metal powder or the like. The tip of the curved rubber 27 is
It is fixed to the distal end main body 22 by the thread winding portion 28.

The tip body 22 has a stepped through hole 29.
The objective optical system unit 24 is fixed to the stepped through-hole 29.

A front lens 36 including a cover glass 32 is mounted on a first lens frame 31 which is a frame constituting the objective optical system unit 24. This first lens frame 31
The rear end portion of the rear group lens frame 37 extends rearward from the front group lens 36, and an insulating member 35 is fitted into the inner periphery of the extended portion. It is inserted. Thereby, the rear group lens frame 37 and the rear member connected to the rear group lens frame 37 are
Insulated from

The first lens frame 31 and the rear lens group frame 37 are coaxially arranged. The rear lens group frame 37 includes a laser cut filter 33, an infrared cut filter 34 and the like. A group lens 38 is mounted.

The first lens frame 31, the rear group lens frame 37
Are provided with a plurality of flare stops 42 for preventing flare and ghost, and a brightness stop 43 is provided in the front group lens 36.

The objective optical system unit 24 is integrally formed, and the stepped through hole 2 is formed from the rear of the tip end body 22.
9 and is attached. First lens frame 31
A fixing groove 57 having a V-shaped cross section is formed on the outer peripheral surface of the front end main body 22. 22 and the objective optical system unit 24 are fixed.

The objective optical system unit 24 has a solid-state image sensor 59. The solid-state imaging device 59 and the protective lens 61 disposed in front of the solid-state imaging device 59 are fitted and fixed to the inner periphery of the element frame 62 by adhesion. Element frame 6
Reference numeral 2 is externally fitted to the rear lens frame 37, and is fixed by an adhesive after performing position adjustment such as focus adjustment.

A shield frame 6 formed in a tubular shape and having an outer periphery covered with an insulating cover 63 is provided on the outer periphery of the base end side of the element frame 62.
4 is fitted and fixed externally.

The base end of the shield frame 64 extends rearward from the solid-state image sensor 59, and a circuit formed of ceramic or the like is provided behind the solid-state image sensor 59 in the portion that extends rearward. The substrate 60 is the objective optical system unit 24
Are held substantially in parallel with the optical axis of

On the front end side of the circuit board 60, an external lead land for connection to the external lead 65 of the solid-state imaging device 59 by soldering or the like is formed.
Is connected to the external lead 65 of the solid-state imaging device 59 by soldering or the like.

On the base end side of the circuit board 60, a signal line connection land connected by soldering or the like to a signal cable 68 composed of a plurality of coaxial lines 66 and a simple line 67 is formed. The circuit board 60 includes a signal cable 68
Is connected to

An IC 69 sealed with a sealing resin is electrically connected and wired on the circuit board 60 to drive the solid-state imaging device 59 between the circuit board 60, the IC 69 and the signal cable 68. Are formed.

The signal cable 68 is connected by soldering or the like to external leads 65 extending rearward from the solid-state image sensor 59 and lands for connecting signal lines on the circuit board 60. Are transmitted by the signal cable 68.

A solid-state image sensor driving signal for driving the solid-state image sensor 59, a solid-state image sensor driving power supply, and the like are transmitted via the circuit board 60. An image signal output from the solid-state imaging device 59 is transmitted to the base end via a signal cable 68 via the circuit board 60.

The outer periphery of the signal cable 68 extending rearward from the circuit board 60 may be damaged by or damage other built-in components provided in the electronic endoscope 1. Cable protection member 72 for reducing noise
It is covered with.

In the vicinity of the tip of the cable protection member 72, the thread 4
6, the cable protection member 72 is adhered and fixed so as not to be displaced from the signal cable 68.

As shown in FIG. 3, on the rear end side of the shield frame 64, tongue sides 44 and 45 are formed on adjacent sides, and extend rearward from the shield frame 64. In the present embodiment,
The tongue 45 is formed to be inclined by an angle θ in the upward direction in FIG. 3 with respect to the optical axis.

The cable protection member 72 for covering the signal cable 68 is in contact with the tongues 44 and 45 of the shield frame 64 and is fixed with an adhesive or the like.

In the present embodiment, the tongue side is formed on two sides, but any number of tongue sides may be formed on any one side to four sides. Further, the inclined tongue may not be provided, or two or more inclined tongues may be formed.

On the other hand, as shown in FIG.
Is filled with, for example, a non-conductive filler 70 (a portion filled with a circle in FIG. 2), and the solid-state imaging device 59, the circuit board 60, the IC 69, and the signal cable 68 are provided.
Is sealed.

The rear end of the insulating cover 63 is filled with a non-conductive adhesive 71 (a portion filled with triangles in FIG. 2), and is formed by tongues 44 and 45. The signal cable 68 is firmly fixed in the protruding direction.

In the present embodiment, the cable protection member 72
Is disposed inside the tongue sides 44 and 45,
The signal cable 68 may be covered from outside the signal cables 4 and 45 and firmly fixed with a thread or the like from the outside of the signal cable 68.

The operation and effect of the above configuration described with reference to FIGS. 1 to 3 will be described below.

In this embodiment, the cable protection member 72, which is covered and fixed on the outer periphery of the signal cable 68 for transmitting the image signal, is fixed to the shield frame 64. Further, the shield frame 64 is fixed to the element frame 62.

As a result, the stress generated at the connection between the circuit board 60, the signal cable 68, and the solid-state image sensor 59 is reduced, and contact failure and disconnection at these connection portions can be prevented.

In the present embodiment, the shield frame 64
Tongue sides 44 and 45 are formed on the tongue sides 44 and 45, and a cable protection member 72 covering the outer periphery of the signal cable 68 is fixed to the tongue sides 44 and 45.

Thus, the projecting direction of the signal cable 68 covered with the cable protection member 72 can be fixed, and interference between the signal cable 68 and other internal components in the electronic endoscope 1 can be reduced. it can.

In the present embodiment, the tongue 45 is formed at an angle θ with respect to the optical axis.

As a result, the cable protection member 72 can be extended in such a direction as to avoid interference with other built-in components of the electronic endoscope 1 such as a light guide, and the diameter of the insertion section 2 can be reduced.

The configuration and operation of the remote switch 12 and the like provided in the operation unit 3 of the electronic endoscope 1 will be supplemented below. The configurations and operations of the parts not described in the following description are the same as the configurations and operations of the parts described with reference to FIGS.

An example of the configuration of the operation unit 3 provided with the remote switch 12 will be described with reference to FIG.

FIG. 4 is an explanatory view for explaining the configuration of the operation section near the remote switch 12 ((A), (B) and (C) are views of the operation section viewed from different directions).

As shown in FIG. 4, the universal cord 4 extending from the operation section 3 is housed in a projection 47 formed on the operation section 3 in the operation section 3.

The convex portion 47 is formed in a smooth R shape so that the degree of freedom of the finger when operating each SW of the remote switch 12 is increased.

A substantially conical elastic member 48 for preventing the universal cord 4 from being sharply bent is provided at a connection portion between the operation section 3 and the universal cord 4.

The connecting portion between the elastic member 48 and the convex portion 47 is also formed in a smooth shape with no step.

In the configuration described above with reference to FIG. 4, the surface shape of the member disposed on the side of the operation unit 3 to be gripped by the hand is formed smoothly, and the surface shape of the connection portion between the members is formed. Are formed in a smooth shape with no steps.

As a result, the degree of freedom of the finger when gripping the operation unit 3 is increased, and the operability of the switch operation of the remote switch 12 and the like provided on the operation unit 3 is improved.

An example of the operation of the remote switch 12 will be described with reference to FIG.

FIG. 5 is a flowchart for explaining the operation of the remote switch 12. The remote switch 12 described with reference to FIG. 5 has four switches SW1, SW
2, SW3 and SW4.

As shown in FIG. 5, when the switch SW4 is pressed, that is, in the ON state, and when it is not pressed, that is, when the switch SW4 is
In the FF state, the functions assigned to the switches SW1, SW2, and SW3 are switched.

When the switch SW4 is in the OFF state, the switch SW1 is assigned to a freeze function, the switch SW2 is assigned to a photometric switching function, and the switch SW3 is assigned to an enlargement switching function.

When the switch SW4 is in the ON state, the switch SW1 is assigned to the release function, the switch SW2 is assigned to the printer output function, and the switch SW3 is assigned to the function of controlling the start and stop of the VTR. .

In the electronic endoscope 1 having the remote switch 12 whose operation has been described with reference to FIG. 5, the functions of the other switches are switched according to the state of one of the switches constituting the remote switch 12. As a result, more functions than the number of switches can be assigned to the remote switch 12, and the cost of the switches can be reduced. For example, in the example described using FIG. 5, four switches SW1, SW2, SW3, S
Six functions are assigned to W4. In this case, the cost can be reduced by two switches.

The number of switches constituting the remote switch 12 is not limited to four, but may be any number of two or more. For example, when the remote switch 12 is composed of three switches, four functions can be assigned. In this case, the cost can be reduced by one switch.

The switches described with reference to FIG. 5 may be assigned to switches other than the remote switch 12 of the operation unit 3.

The switch described with reference to FIG. 5 is not limited to the case where the functions shown in FIG. 5 are allocated and used, but may be used by allocating other functions according to the purpose of use and the operability of the user. May be.

An example of the configuration and operation of the remote switch 12 different from the above will be described with reference to FIGS.

FIG. 6 is a flowchart for explaining the operation of the remote switch 12, and FIG. 7 is an example of a monitor screen displaying the state of the remote switch 12.

The remote switch 12 described with reference to FIGS. 6 and 7 comprises two switches SW1 and SW2.

As shown in FIG. 6, every time the switch SW2 is pressed, that is, every time the switch SW2 is turned on, the switch SW2 is turned on.
The function assigned to 1 is switched.

In the example shown in FIG. 6, every time the switch SW2 is pressed, the function assigned to the switch SW1 is switched in the order of a freeze function, a release function, a VTR recording function, a printer output function, and a freeze function. It has become.

For example, when the switch SW2 is pressed three times and then the switch SW1 is pressed, that is, turned on, the printer output function is executed.

At this time, the switch S is displayed on the screen of the monitor 8.
The function assigned to the switch SW1 is displayed by W2.

In the electronic endoscope 1 having the remote switch 12 whose operation has been described with reference to FIGS. 6 and 7, each time one of the two switches constituting the remote switch 12 is pressed, the other switch SW2 is pressed. Since the function assigned to the switch SW1 is switched, more functions than the number of switches can be assigned to the remote switch 12, and the cost of the switch can be reduced. For example, in the example described with reference to FIGS. 6 and 7, four functions are assigned to two switches SW1 and SW2. In this case, the cost can be reduced by two switches.

The switch SW2 is switched by the switch SW2.
The number of functions for which the assignment to 1 can be switched is not limited to four. For example, five functions may be switched. In this case, the cost can be reduced by three switches.

The number of switches is not limited to two, but may be three or more. For example, in the case of three switches, each time one switch is pressed, for example, four functions assigned to the other two switches may be switched. In this case, the cost can be reduced by five switches.

In the electronic endoscope 1 having the remote switch 12 whose operation has been described with reference to FIGS. 6 and 7, the function currently assigned to the switch SW1 by the switch SW2 is displayed on the monitor 8, and the observation is performed. During this, the function assigned to the switch SW1 can always be confirmed.

An example of the configuration of the remote switch 12 which is different from the above will be described with reference to FIG.

FIGS. 8A and 8B are explanatory diagrams (FIGS. 8A and 8B) illustrating the configuration of the operation unit near the remote switch (the operation units are respectively viewed from different directions).

As shown in FIG. 8, the remote switch 12 includes a switch lever 49 provided on the operation unit 3 in addition to a push button type switch SW1.

The switching lever 49 is connected to the bending operation knob 15.
Are rotated about the rotation axis of the center.

The switching lever 49 can be switched in four stages in the example shown in FIG.

When the switching lever 49 is switched, an index 52 such as “1”, “2”, “3”, or “4” is written on the surface of the operation unit 3 near the position where the switching lever 49 is located. ing.

Here, for example, when the switching lever 49 is located near the index of “1”, the freeze function is assigned to the switch SW1. Similarly, when the switching lever 49 is “2”, the function of freezing is assigned. "3", printer output function,
In the case of "4", the function of VTR recording is assigned.

Here, for example, when the switching lever 49 is positioned near the index of "3" and the switch SW1 is pressed, the function of the printer output is executed.

The number of stages that can be switched by the switching lever 49 is not limited to four, but may be any number.

The type of function assigned to the switch SW1 by the switching lever 49 is not limited to the above-described function, and any function may be assigned according to the purpose of use or the operability of the user.

The state of the function assigned to the switch SW1 by the switching lever 49 may be displayed on the monitor 8 as shown in FIG.

The number of switches other than the switching lever 49 is not limited to one, but may be two or more.

The switching lever 49 may be replaced with a slide-type switch that can switch between two or more states.

In the electronic endoscope 1 having the remote switch 12 whose operation has been described with reference to FIG. 8, the function currently assigned to the switch SW1 can be known by the feeling of operating the switching lever 49. Is good. Further, the function assigned to the switch SW1 can be switched by a single operation on the switching lever 49, and the operability is good.

An example of the configuration of a remote switch different from the above-described remote switch 12 will be described with reference to FIGS.

FIG. 9 is a cross-sectional view illustrating the configuration of a connection portion between the operation unit and the insertion unit, and FIG. 10 is a block diagram illustrating the configuration for detecting a remote switch.

As shown in FIG. 9, the flexible tube portion 11 includes a single or triple hoop material 53 from the inside, a mesh tube 54 formed of metal, and an outer tube 55 formed of a resin such as polyurethane. I have.

A rear base 56 is externally fitted to the rear end side of the flexible tube section 11 and is adhesively fixed.

A heat-shrinkable tube 73 is fixed on the outer periphery of the rear base 56 so as to cover the rear base 56 and the flexible tube 11.

A connecting pipe 74 extending from the operation section 3 is fitted to the rear base 56 and fixed by a fixing ring 75.

A connecting portion between the operating portion 3 and the flexible tube portion 11 is covered with a substantially conical elastic member 50 for preventing the flexible tube portion 11 from being sharply bent. It is provided. Further, an elastic cover 51 is provided so as to cover the outer periphery of the elastic member 50.

The elastic member 50 has a built-in ring-shaped pressure sensor 76, and outputs an electric signal when a pressure equal to or higher than a preset pressure is detected.

As shown in FIG. 10, the electric signal output from the pressure sensor 76 is input to a pressure detection circuit 78 provided in the video processor 7 to detect that a pressure equal to or higher than a preset pressure is applied. It is designed to detect.

Here, by configuring the video processor 7 so that a frequently used function, for example, a freeze function is activated when pressure is applied to the pressure sensor 76, the flexible tube section 11 and the operation section 3 are connected to each other. The freeze function can be activated by, for example, an operator applying or bending a portion where the pressure sensor 76 of the connection portion is disposed. That is,
The pressure sensor 76 can be used as a remote switch.

The function operated by the pressure sensor 76 is not limited to the freeze function, and any other function may be assigned.

A message may be displayed on the monitor 8 to warn the user that the electronic endoscope 1 may be damaged when the flexible tube 11 is bent greatly.

The pressure sensor 76 is not limited to the pressure sensor, but may be replaced with a sensor that mechanically detects bending or pressing and outputs an electric signal by a switch or the like.

In the electronic endoscope 1 having a remote switch whose configuration has been described with reference to FIGS. 9 and 10, for example, the operator holds the insertion section 2 with one hand and operates the bending operation knob 15 with the other hand. When the insertion section 2 is inserted into the observation site while operating, for example, a freeze function or the like can be operated by bending the elastic member 50 using both hands, and the operation section 3 is switched for switch operation or the like. You do n’t have to
The subject can be photographed with good operability.

The present invention is not limited to the configuration and operation described in the embodiment of the invention, but can be variously modified without departing from the gist of the invention.

For example, the electronic endoscope 1 has a distal end 9 shown in FIG.
The configuration is not limited to the direct-view type, and may be a side-view type, a front perspective type, or a rear perspective type.

[Supplementary Notes] (1) A solid-state image pickup device for picking up an image of a region to be observed, an element frame which is a frame holding the solid-state image pickup device, and a circuit board constituting a circuit for driving the solid-state image pickup device And a shield frame connected to the element frame and protecting the circuit board, and a signal cable for transmitting an image signal of an image captured by the solid-state imaging device, wherein the endoscope includes: An endoscope fixed to the shield frame.

(2) The endoscope according to the appendix (1), wherein at least one tongue is provided on the shield frame, and the signal cable is fixed to the tongue side.

(3) The supplementary note (1) or (2), wherein the tongue has an inclined portion inclined with respect to an optical axis, and the signal cable is fixed to the inclined portion. Endoscope.

[0109]

According to the endoscope of the present invention, a solid-state image sensor for picking up an image of a portion to be observed, an element frame which is a frame holding the solid-state image sensor, and a circuit for driving the solid-state image sensor are provided. An endoscope having a circuit board to be configured, a shield frame connected to the element frame and protecting the circuit board, and a signal cable for transmitting an image signal of an image captured by the solid-state imaging device, By fixing the signal cable to the shield frame, it is possible to reduce stress generated at a connection portion between the circuit board, the signal cable, and the solid-state imaging device, and to prevent poor contact or disconnection at the connection portion.

[Brief description of the drawings]

FIGS. 1 to 3 relate to a first embodiment of the present invention. FIG. 1 is a configuration diagram of an electronic endoscope ((A) is a main body of the electronic endoscope, and (B) is an external connection). Equipment)

FIG. 2 is an explanatory view including a partial cross-sectional view illustrating a configuration of a distal end portion.

FIG. 3 is an explanatory diagram illustrating a configuration of a connection portion between an objective optical system unit and a signal cable.

FIGS. 4A and 4B are explanatory diagrams illustrating the configuration of the operation unit in the vicinity of a remote switch ((A), (B), and (C) are diagrams in which the operation unit is viewed from different directions);

FIG. 5 is a flowchart illustrating the operation of a remote switch.

FIG. 6 is a flowchart illustrating the operation of a remote switch.

FIG. 7 shows an example of a monitor screen displaying the status of a remote switch.

FIGS. 8A and 8B are explanatory diagrams for explaining the configuration of the operation unit in the vicinity of a remote switch (FIGS. 8A and 8B are diagrams in which the operation unit is viewed from different directions);

FIG. 9 is a cross-sectional view illustrating a configuration of a connection portion between an operation unit and an insertion unit.

FIG. 10 is a block diagram illustrating a configuration for detecting a remote switch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electronic endoscope 2 ... Insertion part 3 ... Operation part 4 ... Universal cord 5 ... Connector part 6 ... Light source device 7 ... Video processor 8 ... Monitor 9 ... End part 10 ... Bending part 11 ... Flexible tube part 12 ... Remote Switch 13 ... Air / water button 14 ... Suction button 15 ... Bending operation knob 16 ... Light guide end 17 ... Electrical connector 18 ... Connection cord 19 ... Pressure tube 20 ... Air supply tube 21 ... Suction base 22 ... Tip body 23 ... Tip cover 24 ... Object optical system unit 25 ... Bending piece 26 ... Blade 27 ... Bending rubber 28 ... Thread winding part 29 ... Stepped through hole 31 ... First lens frame 32 ... Cover glass 33 ... Laser cut filter 34 ... Infrared cut filter 35 ... insulating member 36 ... front group lens 37 ... rear group lens frame 38 ... rear group lens 42 ... flare stop 43 ... brightness stop 44 Tongue 45 ... Tongue 46 ... Thread 47 ... Convex part 48 ... Elastic member 49 ... Switching lever 50 ... Elastic member 51 ... Elastic cover 52 ... Index 53 ... Hoop material 54 ... Reticulated tube 55 ... Exterior tube 56 ... Rear base 57 ... Fixing groove 58 ... Fixing screw 59 ... Solid-state image sensor 60 ... Circuit board 61 ... Protective lens 62 ... Element frame 63 ... Insulating cover 64 ... Shield frame 65 ... External lead 66 ... Coaxial line 67 ... Simple line 68 ... Signal cable 69 ... IC 70: Filler 71: Adhesive 72: Cable protection member 73: Heat-shrink tube 74: Connecting tube 75: Fixing ring 76: Pressure sensor

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H040 BA00 BA23 CA22 DA03 DA12 DA17 DA21 DA22 GA02 GA03 GA11 4C061 AA00 BB02 CC06 DD03 FF45 JJ06 JJ19 LL02 NN01 NN03 PP08 PP10 SS01 UU03 5C022 AA09 AB15 AB65 AC31 AC42 AC44 AC54 AC54 AC54 AC54 AC54 AC54 AC54 AC54 AC54 AC54

Claims (1)

[Claims] 1. A solid-state imaging device that captures an image of a site to be observed, an element frame that is a frame that holds the solid-state imaging device, a circuit board that constitutes a circuit that drives the solid-state imaging device, and the device. A shield frame connected to a frame and protecting the circuit board, and a signal cable for transmitting an image signal of an image captured by the solid-state imaging device, an endoscope comprising: An endoscope characterized by being fixed.