JP2001046335A - Endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope which is simple in assembly work and is capable of lessening the influence of detrimental electromagnetic noise. SOLUTION: An image pickup system signal cable 21 connected to a CCD and a remote switch cable 2 connected to a remote switch constitute a CCU cable and its outer skin tube is peeled within a CCU connector 11 disposed at its end. Respective exposed metallic net pipe portions are passed through the insertion hole of a cable fixing pipe 44 and are fixed by soldering. The cable fixing pipe 44 is fixed to a CCU cable fixing mouthpiece 40 for shielding which is conductive on the outer peripheral side thereof by means of metallic screws and is electrically connected thereto, by which both metallic net pipes are made equipotential with the shielding member of the CCU connector with simple work within the CCU connector 11. The radiation, etc. of the electromagnetic noises are thus made possible to lessen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope provided with a solid-state image sensor.

[0002]

2. Description of the Related Art In recent years, by inserting an elongated insertion portion into a body cavity, it is possible to observe an organ in the body cavity, and if necessary,
Using a treatment tool inserted through the treatment tool channel of the endoscope,
Endoscopes capable of performing various treatments are widely used. Among them, an electronic endoscope using a solid-state imaging device such as a CCD (Charge Coupled Device) as an imaging means is rapidly spreading.

In such an electronic endoscope, as is well known, it is necessary to shield the built-in electric components. In Japanese Patent Application Laid-Open No. 8-136825, a signal cable has a plurality of input / output signal lines at a central portion, and the outer periphery where these signal lines are bundled is covered with a shielding metal net pipe. It is covered with an outer shield.

[0004] The metal net tube is electrically connected to a cylindrical shield member for shielding the outer peripheral portion of the solid-state imaging device, and a CCU (camera control) for performing signal processing on the solid-state imaging device from a signal processing circuit board. The signal cable on the unit) side is also provided with a metal net tube on the outer periphery and electrically connected to the CCU connector to obtain a high shielding effect.

Further, in order to improve the operability, a remote switch is provided in an operation section of the endoscope to enable various remote operations such as image enhancement, white balance adjustment, and recording on a VTR. .

[0006]

In this case, on the CCU side of the remote switch, there are two systems of a signal cable for the imaging system and a signal cable for the remote switch system. In addition, it is necessary to make the shield metal net tube of each cable conductive, and furthermore, to make it conductive with the conductive member inside the endoscope to make the potential equal.

Conventionally, cables have been tied to each other with a copper wire, or a signal line has been used to connect between two shields, or between a shield and a conductive member inside an endoscope, but it is extremely difficult to assemble. There was a problem.

(Object of the Invention) The present invention has been made in view of the above points, and has as its object to provide an endoscope which can be easily assembled and can reduce the influence of harmful electromagnetic noise.

[0009]

A first cable having one end connected to a solid-state image sensor, a plurality of signal lines bundled and a shield member provided outside the first cable, and one or more signal lines connected to a shield outside the first cable. In an endoscope having a connector part which can be connected to an external signal processing device with a second signal cable covered with a member, both shields of the first and second signal cables at the end on the connector part side Exposed parts
The cable fixing member is fixed to a conductive cable fixing member, and the cable fixing member is further fixed to the conductive member of the connector section. The shield member, the cable fixing member, and the connector section of the plurality of signal cables are provided. The provision of the means for setting the same potential to the above makes it possible to simplify the assembling work and reliably reduce the influence of harmful electromagnetic noise.

[0010] Also, in the endoscope having a connector portion connectable to a camera control unit, a plurality of signal cables bundled, and a plurality of signal cables provided with a shield member on the outside thereof, the plurality of signal cables are provided. In the above, the exposed portion of the shield member at the end of the connector portion side is fixed to a conductive cable fixing member, and further, the cable fixing member is fixed to a component of the conductive connector portion, By setting the shield member, the cable fixing member, and the constituent member of the connector portion of the signal cable to the same potential, the assembling work is simple, and the influence of harmful electromagnetic noise can be surely reduced.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 6 relate to a first embodiment of the present invention, and FIG. 1 shows an external structure of an electronic endoscope according to the first embodiment of the present invention. 2 shows a schematic configuration of an endoscope system provided with an electronic endoscope, FIG. 3 shows a cross-sectional structure of an imaging signal cable, FIG. 4 shows a cross-sectional structure of a CCU connector, and FIG. CCU
FIG. 6 shows a cross section of a gasket for fixing a cable, and FIG.
3 shows a cross section of a cable fixing tube of a CU cable.

As shown in FIG. 1, an electronic endoscope 1 according to a first embodiment of the present invention has an elongated insertion portion 2 inserted into a body cavity or the like, and a proximal end side of the insertion portion 2. A large-diameter operation section 3 is provided so as to also serve as a grip section, and a flexible universal cord 4 extending rearward from the operation section 3 is provided. The insertion portion 2 includes a hard distal end portion 5 having an objective optical system and the like from the distal end side, a bendable portion 6, and a soft flexible tube portion 7. It should be noted that a hard, hard diseased part may be used instead of the soft tube part 7.

The operating section 3 is provided with a bending lever 8 for remotely bending the bending section 6. Further, a universal cord 4 made of a flexible material having a built-in signal cable for transmitting various signals and a light guide fiber for transmitting illumination light is connected to the operation unit 3.

The universal cord 4 has a sufficiently long length with respect to the length of the insertion portion 2, and a light guide connector 9 which can be connected to an external light source device 13 (see FIG. 2) at the end. Is connected.

The light guide connector 9 has a C
A CU cable 10 is branched and extended, and a CC that can be electrically connected to a camera control unit (hereinafter abbreviated as CCU) as a control device or a signal processing device is provided at a terminal end thereof.
U connector (hereinafter abbreviated as CCU connector) 11
Is connected.

FIG. 2 shows a configuration of an endoscope system 12 when an endoscope is inspected using the electronic endoscope 1. The endoscope system 12 includes an electronic endoscope 1 having a built-in solid-state imaging device.
And a light source device 13 for supplying illumination light to the electronic endoscope 1.
And a CCU 1 for performing signal processing on a charge-coupled device (abbreviated as CCD) 14 as a solid-state imaging device of the electronic endoscope 1
5 and a color monitor 16 connected to the CCU 15 and displaying a video signal.

The light guide fiber 17 inserted into the electronic endoscope 1 is connected to the light guide connector 9 at the proximal end of the light guide fiber 17 to the light source device 13.
Illumination light from the lamp 18 in the lamp 3 is supplied, transmitted through the light guide fiber 17, and emitted forward from the distal end surface fixed to the illumination window of the distal end portion 5 to illuminate an object such as an affected part in a body cavity. Light up.

An objective lens 19 is attached to an observation window provided adjacent to the illumination window at the distal end portion 5, and a CCD 14 is disposed at an image forming position, and the formed optical image is photoelectrically converted. I do. The CCD 14 is connected to an imaging system signal cable 21, and reaches the CCU connector 11 via the insertion section 2, the operation section 3, and the universal cord 4. FIG. 3 shows a sectional structure of the imaging system signal cable 21.

As shown in FIG.
Has a plurality of input / output signal lines 22 at the center thereof, these signal lines 22 are bundled, covered and shielded by a metal net tube 23 as a shielding member arranged on the outer periphery thereof, and furthermore, the metal net tube 23 Is covered with an outer tube 24 made of an electrically insulating material and disposed on the outer periphery thereof. The shield member is not limited to the metal net tube 23, but may be a spirally wound metal foil tape.

The operation unit 3 includes a freeze, a release,
A remote switch 25 for performing remote operations such as image enhancement and white balance adjustment is provided. A remote switch cable 26 for transmitting a remote signal connected to the remote switch 25 is connected via a universal cord 4 to C.
It reaches the CU connector 11. Remote switch cable 2
6 has substantially the same structure as the imaging system signal cable 21 shown in FIG. Note that the remote switch cable 2
6 has fewer signal lines 22 than the imaging system signal cable 21.

The imaging system signal cable 21 has its distal end connected to the CCD 14. In this case, the metal net tube 23 is connected to a cylindrical electric shield member 27 that shields the outer periphery of the CCD 14. This imaging signal cable 2
The structure of connecting the metal net tube 23 on the distal end side of the insertion portion 1 to the electric shield member 27 is described in the prior art (Japanese Patent Laid-Open No. 8-1368).
Same as 25).

By connecting the CCU connector 11 to the connector receiver 31 of the CCU 15, the CCD 14 and the remote switch 25 are connected to the CC built in the CCU 15.
It is electrically connected to the D drive circuit 32 and the video process circuit 33.

The CCD drive circuit 32 has a CCD
The drive signal is applied to the CCD 14 to read out the photoelectrically converted signal. The signal output from the CCD 14 is input to a video processing circuit 33, which converts the signal into a video signal. Then, the video signal generated by the video process circuit 33 is output to the color monitor 16 and displays the endoscope image captured by the CCD 14.

When a freeze instruction is given by operating the freeze switch of the remote switch 25, the instruction signal is input to the video process circuit 33, and the image writing to the memory in the video process circuit 33 is prohibited. Set the display state of the still image (frozen image) to repeatedly output the image written immediately before.

When a release instruction is given by operating the release switch of the remote switch 25, if an image recording device such as a VTR is connected to the output terminal of the video process circuit 33, the image recording device is instructed to record an image. Send a signal to start recording. Also, when an instruction for image enhancement and white balance adjustment is given, control signals for image enhancement and white balance adjustment are input to the image enhancement circuit and white balance adjustment circuit in the video process circuit 33, and the image enhancement and white balance adjustment are performed. So that you can do it.

FIG. 4 is a sectional view of the CCU connector 11 provided at the end of the CCU cable 10. CCU cable 1
In addition, the imaging system signal cable 21 and the remote switch cable 26 constituting the outer tube 3 are collectively covered with a silicon tube 34, and further, the outer cover 3 made of urethane resin is provided outside the silicon tube 34.
5 coated.

The imaging system signal cable 21 and the remote switch cable 26 are connected to a silicone tube 34 having a large elasticity.
This prevents the cross section from becoming flat even if the CCU cable 10 is bent. Further, both ends of the silicon tube 24 are not fixed, and can be freely moved even when bent. The outer sheath 35 of the imaging cable 10 is adhered to a first CCU cable fixing base 37 disposed inside a resin-made buckle 36 having a hollow conical shape, and is then fixed in a water-tight manner by thread winding.

The first CC to which the outer cover 35 is fixed
The imaging system signal cable 21 and the remote switch cable 26 extending through the inside of the U cable fixing base 37 are disposed inside the buckle 36 to enhance EMC performance (to reduce harmful electromagnetic noise radiation). Through a first ferrite core 38, and through a second ferrite core 39 spaced apart from the first ferrite core 38, fixing a metal second CCU cable as an internal conductor of the CCU connector 11. Base (connector body) 40
It is fixed with. This second CCU cable fixing base 4
The reference numeral 0 denotes a substantially cylindrical shape, which is arranged inside an insulating cover member 41, and the buckle 36 is fixed to the cover member 41.

The first ferrite core 38 and the second C
Between the second ferrite core 39 adjacent to the CU cable fixing base 40, an elastic gasket 42 in which the imaging system signal cable 21 and the remote switch cable 26 are inserted into the hollow portion and a nut 43 are arranged. The nut 43 is screwed into the female thread of the second CCU cable fixing base 40. The cross section of the gasket 42 is shown in FIG.
As shown in (1), the inside diameter is oval and is made of an elastic member such as rubber.

Then, the second CCU cable fixing base 4
By tightening the nut 43 that is screwed into the gasket 0, the gasket 42 is crushed in the axial direction, and the imaging system signal cable 21 and the remote switch cable 26 inserted inside are pressed and fixed so as to be in close contact with each other. ing.

At the end portions of the two cables 21 and 26, two insertion holes are formed in the cylinder as shown in FIG. 6 with the outer tube 24 peeled off and the metal net tube 23 exposed. The metal net tubes 23 are fixed to the cable fixing tubes 44 by solder 52 in a state where the metal net tubes 23 are inserted into the respective insertion holes of the metal cable fixing tubes 44 having conductivity, for example. It is electrically connected to the tube 44.

Further, the cable fixing tube 44 is made of a metal screw 45.
, Is fixed to the conductive second CCU cable base 40. Each metal net tube 23 is electrically connected to the second CCU cable base 40 via a cable fixing tube 44 and a metal screw 45.

The end of the second CCU cable base 40 beyond the position of the screw 45 is enlarged in diameter and opened.
An insulating plate 47 as a disc-shaped pin mounting member is fixed to the opening via a fixing member 46.
Connector pins 48 are attached to the respective pin fixing holes.

Then, the signal line 2 of each of the cables 21 and 26
2 are soldered to the rear ends of the connector pins 48, respectively. The shield line 49 of the signal line 22 is also grounded (GN
D) is connected to the connector pin 48 connected to
After the connection, the vicinity of the connection is hardened with an insulating adhesive 50.

The fixing member 46 protrudes in a cylindrical shape, and is provided with a concave portion at an intermediate position thereof, so that a waterproof cap 51 for preventing moisture from adhering to the connector pins 38 during washing or the like can be attached. ing.

The second CCU cable fixing base 40 (at the outer peripheral portion of the insulating plate 47) protruding forward of the cover member 41 is covered with an insulating connector fixing ring 53. The CCU connector 11 is connected to the connector receiver 31 of the CCU 15 by the connector fixing ring 53.
It can be detachably connected to the.

As shown in FIG. 2, the CCU 15 has a CCD drive circuit 32 and a video process circuit 3 therein.
3 is covered with a conductive shield frame 54, and this shield frame 54 is connected directly to the ground of the CCD drive circuit 32 and the video process circuit 33 via a capacitor or without a capacitor to emit noise. And the incident light is shielded.

The grounds of the CCD drive circuit 32 and the video process circuit 33 are insulated from the outer case of the CCU 15, and the outer case of the CCU 15 is insulated from the ground of the commercial power supply. Then, the power required for the operation is supplied to the CCD drive circuit 32 and the video process circuit 33 through a power supply circuit in which the CCU 15 is insulated from the commercial power supply through an insulating transformer or the like (not shown) in the outer case. It has become.

As described above, in the present embodiment, the rear ends of the imaging system signal cable 21 as the first signal cable and the remote switch cable 26 as the second signal cable, which are inserted through the CCU cable 10, are connected to the CCU. In the connector 11, the outer sheath tube 24 at the end thereof is peeled off, and the two metal net tubes 23 as the respective shield members are fixed to the conductive cable fixing tube 44 by soldering. By fixing via a metal screw 45 to a second CCU cable fixing base 40 as an internal conductor of the outer CCU connector 11, the two metal net tubes 2 are formed.
Reference numeral 3 denotes an electromagnetic noise shield mechanism (which is electrically connected to the cable fixing tube 44 and the second CCU cable fixing base 40 (as an internal conductor) of the CCU connector 11 to prevent radiation and incidence of electromagnetic noise having the same potential). (Electromagnetic noise shielding mechanism).

As described above, in this embodiment, the ends of the imaging system signal cable 21 and the remote switch cable 26 inserted through the CCU cable 10 are peeled off the outer tube 24 at each end in the CCU connector 11. It is possible to assemble by a simple operation by fixing the exposed portions of the metal net tubes 23 through the insertion holes of the conductive cable fixing tubes 44 and fixing them with the solder 52. The potential of the shield member of the CCU connector 11 can be made equipotential, and a high shield function can be ensured. Accordingly, the metal net tube 23, the cable fixing tube 44, and the second CCU cable fixing base 40 of the imaging system signal cable 21 and the remote switch cable 26, respectively.
Are made equal in potential, thereby making it difficult to receive the influence of radiation and incidence of harmful electromagnetic noise.

For example, the CCD output signal from the image pickup system signal cable 21 is generally weak, and is susceptible to external electromagnetic noise incident on a signal line 22 for transmitting the signal. Thus, the incidence can be effectively prevented, the signal can be transmitted to the video process circuit 33 with a good S / N, and an endoscope image with a good S / N, that is, a good image quality can be displayed on the color monitor 16. Also,
The signal line 22 for transmitting the CCD drive signal easily radiates electromagnetic noise to the outside when transmitting a high-frequency signal such as a horizontal transfer signal, but the radiation is effectively prevented by the metal net tube 22 or the like. it can.

This embodiment has the following effects. The assembly can be performed with a simple operation, and radiation and incidence of harmful electromagnetic noise can be surely reduced, and an endoscope image with a good S / N can be obtained. The cable on the connector side is firmly fixed, and even if a tensile stress is applied to the cable, the connection between the signal line and the connector pin does not break.

Assembly work is simple.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. An endoscope system 12 'shown in FIG. 7 has an endoscope 61 according to the second embodiment. The endoscope 61 is detachable from the optical endoscope 62 and the optical endoscope 62. And a television camera 63 connected to (attached to) the camera. That is, the endoscope 61 is configured by an endoscope external to the television camera.

The optical endoscope 62 has an elongated insertion portion 64.
A light guide cable 67 extending from a side portion of the operation unit 65; an operation unit 65 provided at a rear end of the operation unit 65; an eyepiece 66 provided at a rear end of the operation unit 65; The light guide connector 68 at the end of the cable 67 is detachably connected to the light source device 13.

By the connection, illumination light is supplied to the rear end of the light guide fiber 69 inserted into the light guide cable 68, and this illumination light is transmitted by the light guide fiber 69, and the distal end of the insertion section 64. The illumination light transmitted from the end surface of the light guide fiber is emitted toward the subject such as the affected part.

An objective lens 71 is attached to the observation window at the distal end of the insertion portion 64, and an optical image is formed at the image forming position by the objective lens 71, and the optical image is formed by an image guide fiber 72. It is transmitted to the rear side and can be magnified by the eyepiece 73 of the eyepiece 66.

When a television camera 63 is mounted on the eyepiece 66, an optical image is formed on a CCD 75 disposed at an imaging position by an imaging lens 74 provided on the television camera 63. Photoelectric conversion is performed.

The CCD 75 is connected to the imaging signal cable 21 inserted in the camera cable 76, and the remote switch cable 26 connected to the remote switch 25 provided in the television camera 63 is also inserted in the camera cable 75. The imaging system signal cable 21 and the camera cable 75 are connected to the connector pin 48 of the CCU connector 11 at the rear end.

The CCU 7 in the television camera 63
5 is covered with a conductive shield frame 76, and this shield frame 76 is connected to the metal net tube 23 at the front end of the imaging system signal cable 21.

As described in the first embodiment, the above C
The CU connector 11 is detachably connected to a connector receiver 31 of the CCU 15. The structure of the CCU connector 11 is the same as that described in the first embodiment. Also,
The configuration of the CCU 15 is the same as that described in the first embodiment. This embodiment also has the same effects as the first embodiment.

In the above description, the CCU connector 11
The structure in which the imaging system signal cable 21 and the remote switch cable 26, that is, the first and second signal cables are electrically connected and fixed to the shield member of the CCU connector 11 has been described. Even in the case where there is a cable, it can be electrically connected and fixed to the shield member of the CCU connector 11 in substantially the same manner.

That is, when there are the first, second and third signal cables, for example, three
If the three insertion holes are provided, the potential can be easily made equal to that described above. In addition, the present invention can be similarly applied to a case where there are fourth or more signal cables. Further, the second or third signal cable is not limited to a plurality of signal lines, but may be one signal line (two including a shield line).
It can be applied to the case.

[Supplementary Notes] A first cable having one end connected to the solid-state imaging device, bundling a plurality of signal lines, and providing a shield member outside the first cable, and a second signal having at least one signal line covered by the outer shield member In an endoscope having a connector portion connectable to a cable and an external signal processing device, both end portions of the first and second signal cables on the side of the connector portion in the first and second signal cables have conductivity. It is fixed to a cable fixing member, and further, the cable fixing member is fixed to a constituent member of the connector portion having conductivity, and the shield member, the cable fixing member, and the constituent member of the connector portion in the plurality of signal cables are the same. An endoscope comprising means for setting a potential.

2. In an endoscope having a connector portion connectable to a camera control unit, a plurality of signal cables bundled, and a plurality of signal cables provided with a shield member outside thereof, the connector portion side of the plurality of signal cables The shield member exposed portion at the end of the above is fixed to a conductive cable fixing member, and further, the cable fixing member is fixed to the conductive member of the connector portion, the shield member in the plurality of signal cables An endoscope wherein the same electric potential is applied to the cable fixing member, and a component member of the connector section. 3. 3. The endoscope according to claim 2, wherein the shield member is a metal net tube.

4. A connector part connectable to the camera control unit, a signal cable in which a plurality of signal wires are bundled and a shield member is provided on the outside, and a shield member exposed portion at an end of the plurality of signal cables on the connector side is fixed. A cable fixing member having conductivity, and a fixing member for fixing the cable fixing member, a component member of the connector portion having conductivity, and a shield member in the plurality of signal cables, a cable fixing member, An endoscope wherein the components of the connector section have the same potential.

5. In Supplementary Notes 2 and 4, the shield member is a metal net pipe. 6. In the above supplementary note 2, at least one of the plurality of signal cables is connected to a solid-state imaging device arranged at the end of the endoscope insertion section. 7. In Supplementary Note 4, a plurality of the signal cables are provided. 8. In Supplementary Note 4, the signal cable is connected to a solid-state imaging device disposed at the end of the endoscope insertion section.

9. In the above supplementary note 1, the second signal cable transmits a remote signal for remotely controlling the operation of the signal processing device. 10. In the above Supplementary Note 1, the endoscope is an electronic endoscope in which a solid-state imaging device is disposed at a distal end of an elongated insertion portion. 11. In the above Supplementary Note 1, the endoscope is an endoscope attached to an optical endoscope and externally attached to a television camera incorporating a solid-state imaging device.

[0059]

As described above, according to the present invention, a first cable having one end connected to a solid-state image pickup device, a plurality of signal lines bundled and a shield member provided outside the first cable is provided. The second signal line is covered with the outer shield member.
An endoscope having a connector portion that can be connected to an external signal processing device with the signal cable of the first or second signal cable. And further fixing the cable fixing member to a component of the connector portion having conductivity, a shielding member in the plurality of signal cables, a cable fixing member, and a component of the connector portion. Since the means for setting the same potential is provided, the assembling work is simple, and the influence of harmful electromagnetic noise can be surely reduced.

Also, in the endoscope having a connector portion connectable to a camera control unit, a plurality of signal cables bundled, and a plurality of signal cables provided with a shield member on the outside thereof, the plurality of signal cables are provided. In the above, the exposed portion of the shield member at the end of the connector portion side is fixed to a conductive cable fixing member, and further, the cable fixing member is fixed to a component of the conductive connector portion, Since the shield member, the cable fixing member, and the constituent members of the connector part in the signal cable are set to the same potential, the assembling work is simple, and the influence of harmful electromagnetic noise can be surely reduced.

[Brief description of the drawings]

FIG. 1 is a view showing an appearance of an electronic endoscope according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a schematic configuration of an endoscope system including an electronic endoscope.

FIG. 3 is a cross-sectional view showing the structure of an imaging system signal cable.

FIG. 4 is a sectional view showing the structure of a CCU connector.

FIG. 5 is a sectional view showing the structure of a gasket in the CCU connector.

FIG. 6 is a sectional view showing the structure of a cable fixing tube in the CCU connector.

FIG. 7 is a block diagram showing a schematic configuration of an endoscope system provided with a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electronic endoscope 2 ... Insertion part 3 ... Operation part 4 ... Universal code 10 ... CCU cable 11 ... CCU connector 14 ... CCD 15 ... CCU 19 ... Objective lens 21 ... Imaging system signal cable 22 ... (Input / output) signal line 23 ... Metal net tube 24 ... Skin tube 25 ... Remote switch 26 ... Remote switch cable 27 ... Electrical shield member 31 ... Connector receiver 32 ... CCD drive circuit 33 ... Video process circuit 36 ... Break down 38,39 ... Ferrite core 40 ... CCU Cable fixing base 41 Cover member 42 Gasket 43 Nut 44 Cable fixing tube 45 Screw 46 Fixing member 48 Connector pin 49 Shield wire

Continued on front page F term (reference) 2H040 BA00 BA24 CA07 CA11 CA12 CA22 CA27 CA30 DA03 DA14 DA15 DA16 DA18 DA21 GA01 GA02 4C061 AA00 BB02 CC06 CC07 DD03 FF02 FF07 FF11 FF45 JJ06 JJ15 LL02 LL03 NN01 NN03 PP10 SS01 U01

Claims (3)

[Claims] 1. A first cable having one end connected to a solid-state imaging device, a plurality of signal lines bundled and a shield member provided outside thereof, and one or more signal lines covered with a shield member outside the first cable. An endoscope having a connector portion that can be connected to an external signal processing device with the second signal cable, wherein both end portions of the first and second signal cables on the connector portion side are exposed to both shield members. Fixed to a cable fixing member having conductivity, further fixing the cable fixing member to a component of the connector portion having conductivity,
An endoscope, comprising: means for setting the same potential to the shield member, the cable fixing member, and the constituent members of the connector section in the plurality of signal cables. 2. An endoscope having a connector portion connectable to a camera control unit, a plurality of signal cables bundled, and a plurality of signal cables provided with a shield member on the outside thereof are provided. In the above, the exposed portion of the shield member at the end of the connector portion side is fixed to a conductive cable fixing member, and further, the cable fixing member is fixed to a component of the conductive connector portion, An endoscope, wherein a shield member, a cable fixing member, and a constituent member of a connector part in a signal cable are set to the same potential. 3. The endoscope according to claim 2, wherein said shield member is a metal net tube.