WO2005082230A1 - 内視鏡 - Google Patents
内視鏡 Download PDFInfo
- Publication number
- WO2005082230A1 WO2005082230A1 PCT/JP2005/003325 JP2005003325W WO2005082230A1 WO 2005082230 A1 WO2005082230 A1 WO 2005082230A1 JP 2005003325 W JP2005003325 W JP 2005003325W WO 2005082230 A1 WO2005082230 A1 WO 2005082230A1
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- WO
- WIPO (PCT)
- Prior art keywords
- unit
- endoscope
- signal
- cable
- light guide
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims abstract description 55
- 230000037431 insertion Effects 0.000 claims abstract description 55
- 238000005286 illumination Methods 0.000 claims abstract description 49
- 238000012545 processing Methods 0.000 claims abstract description 31
- 238000003384 imaging method Methods 0.000 claims abstract description 22
- 238000005452 bending Methods 0.000 claims description 45
- 230000003287 optical effect Effects 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 18
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- 230000004048 modification Effects 0.000 description 36
- 238000012986 modification Methods 0.000 description 36
- 238000010586 diagram Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 9
- 238000004659 sterilization and disinfection Methods 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 238000001839 endoscopy Methods 0.000 description 7
- 230000008054 signal transmission Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00114—Electrical cables in or with an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00105—Constructional details of the endoscope body characterised by modular construction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00117—Optical cables in or with an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00181—Optical arrangements characterised by the viewing angles for multiple fixed viewing angles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2461—Illumination
- G02B23/2469—Illumination using optical fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
- G02B23/2484—Arrangements in relation to a camera or imaging device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00142—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with means for preventing contamination, e.g. by using a sanitary sheath
Definitions
- the present invention relates to an endoscope for performing an endoscopic examination inside a body cavity or the like.
- a rigid endoscope provided with a rigid insertion portion having a built-in image sensor.
- the light guide cable and the scope cable are integrated with the rigid endoscope body.
- Japanese Patent Application Laid-Open Publication No. 2003-190081 discloses a rigid endoscope body having a rigid insertion portion having a built-in image pickup device at a distal end thereof, An endoscope main body separated from a detachable cable section in an operation section is disclosed.
- a wireless signal transmission / reception unit is provided in the rigid endoscope main body, and a signal captured by an external signal processing device is wirelessly transmitted.
- Japanese Patent Application Laid-Open Publication No. 2002-369789 discloses that a light guide cable is detachably attached to an endoscope body having a built-in imaging device, and a light emitting element is provided in the endoscope body. Built-in, the image picked up by the image sensor is emitted by the light emitting element, transmitted by the light guide in the light guide cable, received by the light receiving element arranged in the light source device, converted into an electric signal, and converted into a video signal The configuration is such that it is transmitted to the processing circuit.
- the endoscope device 301 includes an endoscope 302 and a light that supplies illumination light to the endoscope 302.
- a source device 303 a processor device 304 that performs signal processing on an image sensor incorporated in the endoscope 302, and an image captured by the image sensor by inputting a video signal output from the processor device 304.
- a monitor 305 that displays
- the endoscope 302 includes a flexible (soft) insertion portion 306, an operation portion 307 provided at a rear end of the insertion portion 306, and a universal cable 308 extending from the operation portion 307.
- the connector 309 at the end of the universal cable 308 is connected to the light source device 303.
- An electric cable 311 connected to an electric connector 310 provided on a side surface of the connector 309 is connected to a processor device 304 that performs signal processing.
- the video signal generated by the processor 304 is output to the monitor 305.
- the insertion portion 306 of the endoscope 302 has a hard distal portion 313 provided at the distal end thereof, a curved portion 314 that can be bent freely, and a flexible portion (soft portion) 315 having flexibility.
- a force S for bending the bending unit 314 can be obtained.
- a light guide 317 for transmitting illumination light is inserted into the insertion portion 306, and the light guide 317 is further connected to the operation portion 307 via a universal cable 308, and a terminal of the connector 309. It is mounted on the light source device 303 as a light guide base protruding from the end face.
- the illumination light of the lamp 319 which is turned on by the lamp driving power from the lamp driving circuit 318 in the light source device 303, passes through the aperture 320, and is further condensed by the condenser lens 321 to the light guide base. Incident on the end face of.
- the illumination light incident on the end face of the light guide base is transmitted by the light guide 317.
- the light is emitted from the distal end surface of the light guide 317 fixed to the illumination window of the distal end portion 313, and illuminates a subject such as an affected part.
- An optical image of the illuminated subject is formed at the image forming position by an objective lens 323 attached to an observation window adjacent to the illumination window.
- a charge-coupled device (abbreviated as CCD) 324 is arranged at this image forming position.
- the CCD 324 is inserted into the input section 306 or the like after the current is amplified by the buffer IC 325.
- the electric connector 310 is connected to the electric connector 310 through the passed signal cable 326, and the electric connector 310 is further connected to the CCD drive circuit 327 and the CDS circuit 328 in the processor device 304 via the electric cable 311.
- the CCD output signal is input to the CDS circuit 328, the signal component is extracted and converted to a baseband signal, input to the video processing circuit 329, converted to a video signal, and output to the monitor 305,
- the subject image picked up by the CCD 324 is displayed on the display surface of the monitor 305 as an endoscope image.
- a video signal output from the video process circuit 329 is input to an aperture control circuit 322 in the light source device 303, and the aperture control circuit 322 generates a dimming signal.
- the aperture control circuit 322 By controlling the opening amount of the aperture 320, light control is performed so that an appropriate illumination light amount is obtained.
- the signal since a signal for driving the image sensor is also transmitted wirelessly, the signal may be a factor that requires noise countermeasures for surrounding electric devices.
- the structure of the light-receiving element side is very complicated, especially in the light-receiving element side, since the light is transmitted using a part of the light guide in the light guide cable.
- the drawback that it increases.
- the prior example shown in FIG. 24 has the same drawback as the case of the rigid endoscope main body in which the light guide cable and the scope cable are formed as described above.
- an electronic endoscope having a built-in image pickup device at the distal end of the insertion section is configured to transmit a signal from the image pickup device as an optical signal. Device not available.
- the present invention has been made in view of the above points, and maintains compatibility in which existing light source devices and signal processing devices can be used, so that an operator can easily perform another endoscopic examination even during an endoscopic examination or the like.
- An object of the present invention is to provide an endoscope that can be replaced with a mirror.
- an elongated insertion portion having a built-in imaging means at a front end portion, an operation portion provided at a rear end of the insertion portion, and a light guide for transmitting illumination light from the operation portion.
- a detachable unit for detachably connecting the first unit on the insertion unit side and the second unit on the cable unit side between a front end and a rear end of the operation unit.
- the surgeon removes only the first unit on the insertion section side by using the detachable section, and the The first unit of different type can be easily replaced and used.
- FIG. 1 is a block diagram showing a configuration of a medical endoscope system provided with a first embodiment of the present invention.
- FIG. 2 is a block diagram showing a configuration of a medical endoscope system including Embodiment 2 of the present invention.
- FIG. 3 is a diagram showing a configuration near a cable unit according to a third embodiment.
- FIG. 4 is a diagram showing a configuration near a cable unit of a rigid endoscope in a modified example.
- FIG. 5 is a block diagram showing an endoscope system including a fourth embodiment.
- FIG. 6 is a block diagram showing an endoscope system according to a first modification.
- FIG. 7A is a block diagram showing an endoscope system according to a second modification.
- FIG. 7B is a diagram showing an internal configuration of an integrated connector according to a second modified example.
- FIG. 8 is a block diagram showing an endoscope system according to a third modification.
- FIG. 9 is a configuration diagram showing an endoscope system including a fifth embodiment of the present invention.
- FIG. 10 is a diagram showing a configuration of an endoscope according to a fifth embodiment provided with a detachable portion.
- FIG. 11 is a perspective view showing, in a perspective view, a configuration of a peripheral portion of a detachable portion.
- FIG. 12A is a perspective view showing a configuration of a detachable portion in a first modified example in a perspective view.
- FIG. 12B is a perspective view showing, in a perspective view, the configuration of an attaching / detaching portion having a slightly different configuration from FIG. 12A.
- FIG. 13 is a cross-sectional view showing a configuration of a detachable part in a second modified example.
- FIG. 14 is a perspective view showing a configuration of a detachable portion in a third modified example in a perspective view.
- FIG. 15 is a cross-sectional view showing a configuration of a coil peripheral portion in a detachable portion in a mounted state.
- FIG. 16 is a perspective view showing a configuration of a detachable portion in a fourth modified example in a perspective view.
- FIG. 17 is an explanatory diagram showing a configuration of a light transmitting / receiving unit.
- FIG. 18 is a configuration diagram showing an endoscope system including a sixth embodiment of the present invention.
- FIG. 19 is a perspective view showing, in a perspective view, a configuration of a peripheral portion of a detachable portion.
- FIG. 20 is a perspective view showing the configuration of a detachable portion in a first modified example in a perspective view.
- FIG. 21 is a perspective view showing the configuration of a detachable portion in a second modification in a perspective view.
- FIG. 22 is a diagram showing a main part of a configuration of a detachable portion in a second modified example.
- FIG. 23 is a diagram showing a configuration of an endoscope according to a third modification.
- FIG. 24 is a configuration diagram showing an endoscope system including an endoscope of a prior example.
- FIG. 1 shows a configuration of a medical endoscope system including a first embodiment of the present invention.
- the light guide cable section 3 and the signal cable section 4 are detachably connected to each other, the other end of the light guide cable section 3 is detachably connected to the light source apparatus 5 for supplying illumination light, and the other end of the signal cable section 4.
- a processor 6 is detachably connected and performs signal processing
- a monitor 7 is detachably connected to the processor 6 and displays a corresponding image when a video signal is input.
- the rigid endoscope body 21 is detachably connected to the light source device 5 and the processor device 6.
- a medical rigid endoscope 91 for performing an endoscopy is formed.
- the rigid endoscope 91 of the present embodiment includes a rigid endoscope main body 21 as a front endoscope unit (first unit) and a rear end portion near the operating unit 12 of the front endoscope unit. It consists of two units: a detachable rear endoscope unit (second unit) at the detachable unit. Note that the direct-view rigid endoscope main body 2A and the oblique rigid endoscope main body 2B differ only in the optical system for illumination and imaging at the distal end of the insertion section 11 as described below. .
- the endoscope main body 21 includes a hard insertion portion 11 formed of an elongated, cylindrical stainless steel or the like, and an operation portion (also referred to as a grip portion) provided at a rear end of the insertion portion 11 and gripped by an operator or the like.
- a light guide connector 13 and a signal connector 14 are provided on, for example, a rear end surface of the operation unit 12, and a connector receiver 3a and a signal cable 3 provided at one end of the light guide cable unit 3, respectively.
- Each is detachably connected to a signal connector receiver 4a provided at one end of the unit 4. That is, the endoscope body 21 is formed with a connection portion to which the light guide cable portion 3 and the signal cable portion 4 are detachably connected.
- the light guide connector 3b provided at the other end of the light guide cable unit 3 and the signal connector 4b provided at the other end of the signal cable unit 4 are detachably attached to the light source device 5 and the processor device 6, respectively. Connected to.
- a light guide 15 for transmitting illumination light is inserted into the insertion portion 11, and this light guide 15 is provided.
- the rear end of the light guide 15 reaches the light guide connector 13, which is the incident end of the illumination light.
- the illumination light from the light source device 5 is supplied to the light guide 15 by the light in the light guide cable section 3. Supplied via guide 16.
- the light guide connector 13 is abbreviated as the connector 13 and the signal connector 14 is abbreviated as the connector 14.
- the light source device 5 has a built-in light source lamp 18 that is turned on by electric power from a power supply circuit 17, and the light of the light source lamp 18 passes through an aperture 20, the amount of which is controlled by an aperture control circuit 19, to an appropriate amount of light. After the adjustment, the light is condensed by the condensing lens 21 and supplied to the light guide 16 of the light guide cable section 3, and further supplied to the light guide 15 of the endoscope main body 21 via the light guide 16.
- the light guide 15 has a light-emitting end, which is fixed at the distal end of the insertion portion 11.
- the illumination light transmitted to the distal end surface of the light guide 15 passes through the illumination lens 22 attached to the illumination window.
- the illumination lens 22 the light is emitted to the front side, and the insertion portion 11 illuminates a subject such as an affected part to be inspected or treated inside the body such as an abdomen inserted through a trocar or the like.
- An observation window is provided at the distal end of the insertion section 11 adjacent to the illumination window, and an objective lens 23 is attached to the observation window.
- a charge-coupled device abbreviated as CCD 24 as a solid-state imaging device is arranged, and photoelectrically converts an optical image formed on the imaging surface.
- the optical axis ⁇ of the objective lens 23 is in a direction parallel to the axis of the entrance 11 and the axis of the entrance 11 is The parallel front is the viewing direction.
- the illumination light further emitted from the distal end surface of the light guide 15 via the illumination lens 22 illuminates the front side parallel to the axis of the entrance 11 so as to illuminate the viewing direction of the objective lens 23. .
- the distal end surface of the insertion portion 11 is formed so as to face an oblique direction deviated from a direction orthogonal to the axial direction of the insertion portion 11, and An illumination window and an observation window are provided adjacent to the front end surface in the direction, and an illumination lens 22 and an objective lens 23 are attached to each of them. Also, inside the illumination lens 22, near the tip The tip of the bent light guide 15 is fixed. Further, a CCD 24 is arranged at an image forming position of the objective lens 23.
- the optical axis ⁇ ′ of the objective lens 23 has a viewing direction that is, for example, a perspective direction perpendicular to the axial direction of the entrance 11.
- the CCD 24 in the distal end is passed through the input unit 11 and the operation unit 12 via a waveform shaping circuit 25 and a buffer circuit 26 built in the vicinity of the distal end, for example.
- the signal line 27a is connected to the contact of the signal connector 14.
- the CCD 24 outputs a signal charge that has been photoelectrically converted by applying the CCD drive signal as a CCD output signal. From the CCD output signal, a signal component is extracted by a CDS circuit 31 arranged near the CCD 24, and the current is amplified by a buffer circuit 32.
- the signal amplified by the buffer circuit 32 is input to the processor device 6 via the signal line 27b inserted into the insertion unit 11 and the operation unit 12 and the signal line 29b in the signal cable unit 4.
- the signal input to the processor device 6 is converted into a digital signal by the A / D conversion circuit 33 and then subjected to signal processing by the video signal processing circuit 34 to generate a digital video signal.
- the digital video signal is input to a DZA conversion circuit 35, converted into an analog video signal, output to the monitor 7 from its output end, and also output to the aperture control circuit 19 of the light source device 5. Is done.
- the aperture control circuit 19 generates a dimming signal (brightness control signal) by integrating a luminance level of the input video signal at a predetermined cycle or through a low-pass filter, and compares the dimming signal with a reference brightness level.
- the aperture amount of the diaphragm 20 is adjusted by a difference signal from the level, and the amount of illumination can be adjusted so that the brightness of the image displayed on the monitor 7 becomes suitable for observation.
- the direct-view rigid endoscope 9A includes a light guide cable unit 3 and a signal cable unit 4 which are detachably attached to the rigid endoscope main body 2A, and is a perspective type.
- the rigid endoscope 9B is a light that is detachable from the rigid endoscope body 2B.
- the guide cable 3 and the signal cable 4 are provided.
- the light guide cable section 3 and the signal cable section 4 near the operation section 12 are in a clean state as shown in FIG. It is located in the clean area 36, which is set in the clean area 36, and can be operated freely by the operator who performs inspections and treatments in the clean area 36.
- the connectors 3b and 4b at the rear end of the light guide cable section 3 and the signal cable section 4 are located in the unclean area 37 which is not set in a clean state, the surgeon in the clean area 36 has During the examination, virtually no operation can be performed during the operation.
- each rigid endoscope 91 has a structure that can be separated into the rigid endoscope main body 2 I and the detachable light guide cable section 3 and the signal cable section 4 in the operation section 12.
- the feature is that the rigid endoscope main body 21 can be easily replaced in the clean area 36.
- the surgeon grasps the operation unit 12 and uses it in the state of direct observation or observing the observation field of view, and if the operator desires to change the field of view during the operation, the connector 13 of the operation unit 12 in the clean area 36 is used.
- the 14 parts can be removed to change the field of view and the rigid endoscope can be easily replaced and used. That is, since a detachable connection mechanism that can be easily replaced is formed in the clean area 36, it can be easily removed and replaced.
- each rigid endoscope 91 is made up of a rigid endoscope main body 21 and a cable unit comprising a light guide cable section 3 and a signal cable section 4 which are detachably attached thereto.
- a structure that can be separated from the rigid endoscope 8 sterilization and disinfection of each rigid endoscope 91 can be performed more easily.
- the rigid endoscope body 21 and the cable unit 8 may have different resistance to sterilization or disinfection due to the material used. In this case, the lower resistance is considered. It is necessary to sterilize and disinfect it, but in this example, it can be Sterilization and disinfection in consideration of the respective resistances can be performed. Also, in the case of performing repairs and the like, it is more economical to provide a separate body in this embodiment. Also, it can be realized with a simple configuration.
- the existing light source device and signal processing device that can be used when the rigid endoscope 21 and the cable unit 8 are integrated can be used as they are.
- the rigid endoscope 91 of the present embodiment can be realized with a simple configuration, and can be widely used and easily used. Also, it can be manufactured at low cost.
- the rigid endoscope 91 is described as being composed of the rigid endoscope main body 21 and the cable unit 8, but the rigid endoscope main body 21 is referred to as the rigid endoscope. Can be considered.
- the rigid endoscope itself can be easily replaced with a rigid endoscope having a different visual field in the clean area 36.
- the rigid endoscope main body 21 is regarded as a rigid endoscope, the present invention can be applied to a case where the connector 3b or 4b side of the cable unit 8 is integrated with the light source device 5 or the processor device 6.
- the rigid endoscope 91 and the like are constituted by the rigid endoscope main body 21 and the detachable cable unit 8 similarly to the first embodiment.
- the endoscope body 21 can be regarded as a rigid endoscope.
- FIG. 2 shows an endoscope system 1B including the second embodiment.
- the endoscope system 1B is different from the endoscope system 1 shown in FIG. 1 in that the rigid endoscope main body 21 can be connected to the light guide cable section 3 and the signal cable section 4 via a connection adapter 41. I have.
- connectors 42a and 43a to which the connector receivers 3a and 4a of the light guide cable unit 3 and the signal cable unit 4 are detachably connected are provided at one end of the connection adapter 41.
- the other end of the connection adapter 41 is detachably connected to the connectors 13 and 14 of the rigid endoscope main body 21 with one touch.
- Connector receivers 42b and 43b are provided.
- Other configurations are the same as those of the first embodiment.
- connection adapter 41 is provided with, for example, a mount portion 44 that fits substantially outside at the rear end of the operation portion 12, and positions the rear end of the operation portion 12 in the circumferential direction and presses the operation portion 12. By doing so, it can be detachably attached to the operation unit 12 with a single touch by overcoming a small convex part.
- the connector receivers 3a and 4a of the light guide cable section 3 and the signal cable section 4 are connected to the connectors 42a and 43a on one end side of the connection adapter 41, respectively.
- the other end of the adapter 41 is connected to the rigid endoscope main body 2A or 2B to perform an endoscope inspection or the like.
- connection adapter 41 When the endoscope is to be inspected by changing the field of view, the connection adapter 41 is disconnected from the rigid endoscope main body 21 to change the field of view and perform the endoscopy. Endoscope body 2J CJ can be easily replaced with other than I).
- the rigid endoscope main body 21 can be replaced and used more easily than in the first embodiment.
- the other effects are the same as those of the first embodiment.
- FIG. 3 shows a configuration near the cable unit in the third embodiment.
- the integrated connector (or integrated adapter) 51 in which the connector guides 3a and 4a of the light guide cable section 3 and the signal cable section 4 in the first embodiment, which are connected to the endoscope main body 2A or 2B, are integrated.
- the connection adapter 41 in the embodiment 2 of FIG. 2 is configured such that the light guide cable section 3 and the signal cable section 4 are integrated with the connector receivers 3a and 4a.
- the rigid endoscope 9A of Embodiment 3 (similarly to 9B) includes the rigid endoscope main body 2A and the cable unit 52 provided with the detachable integrated connector 51 on the rigid endoscope main body 2A. Is done.
- the integrated connector 51 is provided with a light guide connector receiver 3a and a signal connector receiver 4a that are connected to the light guide connector 13 and the signal connector 14 of the operation unit 12, respectively.
- a mount portion 44 provided with a concave portion having an inner diameter that fits into the outer diameter of the rear end of the operation portion 12 is provided on the outer peripheral side.
- the light guide cable portion 3 and the signal cable portion 4 extend from the integrated connector 51, and are detachably connected to the light source device 5 and the processor device 6, respectively.
- Other configurations are the same as those shown in the first embodiment or the second embodiment.
- the operator can easily attach and detach the cable unit 52 to and from the rigid endoscope main body 2A or 2B in the clean area 36 by attaching and detaching the integral connector 51.
- the operator can perform an operation under an endoscopic examination or under an endoscopic examination. If you want to change the viewing direction from direct view to oblique view during the operation, you can easily change and use as follows.
- the integral connector 51 is detached by performing an operation of separating the integral connector 51 from the operation section 12, and the mount section 44 of the integral connector 51 is aligned with the operation section 12 of the oblique rigid endoscope body 2B.
- the rigid endoscope 9B in which the integral connector 51 is attached to the oblique rigid endoscope main body 2B can be used.
- FIG. 4 shows a configuration near a cable unit of a rigid endoscope 9C according to a modification.
- the rigid endoscope 9C of this modified example also includes a rigid endoscope main body 2C and a cable unit 52 having an integral connector 51 attached to and detached from the rigid endoscope main body 2C.
- the endoscope system including the present modified example includes a rigid endoscope 9C shown in FIG. 4 in addition to the rigid endoscope 9A shown in FIG.
- a light guide connector 13 and a signal connector 14 provided on the rear end face of the operation unit 12 in the rigid endoscope body 2A of the direct-view type are the same as the side surface of the operation unit 12.
- the connector portion 54 is provided in a shape.
- the integrated connector 51 of the cable unit 52 shown in FIG. 3 is detachably mounted (connected) to the connector section 54 provided on the side surface of the operation section 12.
- the surgeon can provide a rigid endoscope body 2A having a light guide connector 13 and a signal connector 14 on the rear end surface or a rigid endoscope having a light guide connector 13 and a signal connector 14 on the side surface. From the mirror body 2C, you can select the one you think is easy to use. In addition, the rigid endoscope main body 2A or the rigid endoscope main body 2C can be selectively used depending on a site to be operated.
- FIG. 5 shows an endoscope system 1D including the fourth embodiment.
- This endoscope system 1D is an integrated connector in which the connection side of the separate light guide cable section 3 and signal cable section 4 to the rigid endoscope main body 21 in the endoscope system 1 of FIG. 1 is integrated.
- (Integral adapter) 61 and a switch 62 for instructing and controlling the processor 6D is provided in the integral connector 61. Therefore, the rigid endoscope 9A in the present embodiment includes the rigid endoscope main body 2A and the cable unit 63 provided with the integral connector 61 which is detachably connected to the operation unit 12 of the rigid endoscope main body 2A. Be composed.
- the integrated connector 61 is different from the integrated connector 51 shown in FIG. 3, for example, in that a switch portion 62 is further provided.
- the switch section 62 has, for example, a freeze switch 64a and a release switch 64b.
- One force or two or more forces shown in FIG. 5 may be used.
- the freeze switch 64a and the release switch 64b reach the contacts of the signal connector 4b via the signal lines 29c and 29d in the signal cable unit 4. And it is detachably connected to the signal connector receiver of the processor device 6D.
- the processor device 6D is different from the processor device 6 in FIG. 1 in that signal lines 65a and 65b are extended to the video signal processing circuit 34 from the signal connector.
- the signal line 65b connected to the release switch 64b is further connected to the release instruction output terminal 66.
- a release signal can be sent to an image recording device such as an image filling device (not shown) to which the control terminal is connected to the release instruction output terminal 66.
- Other configurations are the same as those shown in FIG. Is the same as
- a release instruction and the like are further provided. Operation can be performed, and the operability can be further improved.
- FIG. 6 shows an endoscope system 1 E including a first modification.
- This endoscope system 1E is different from the endoscope system 1D of FIG. 5 in that a concave portion 71 is provided in the light guide 16 in the integral connector 61 so that the filter cassette 72 can be mounted.
- the filter cassette 72 accommodates an optical filter 73 for limiting a passing wavelength band.
- the optical filter 73 includes an infrared transmission filter that transmits infrared light, an ultraviolet transmission filter that transmits ultraviolet light, and the like. Special light observation (special light imaging) under illumination such as infrared light or ultraviolet light can be performed.
- the light guide cable section 3 and the signal cable section 4 pass through a single cable from the integrated connector 61 to the rear side, and are branched into two at the rear end side. It has become.
- an observation image using infrared light, ultraviolet light, or the like can be obtained in addition to a normal observation image using a normal visible region.
- FIG. 7A shows a main part of an endoscope system 1F including a second modification.
- the endoscope system 1F is different from the endoscope system 1D of FIG. 5 in that a connection detecting section 81 for determining whether or not the integrated connector 61 is connected to the rigid endoscope main body 2A is provided in the integrated connector 61.
- the light is supplied from the light source device 5 to the light guide 16 based on the connection detection result of the connection detection unit 81.
- a contact pin 82 constituting a connection detecting section 81 for detecting whether or not a connection is made to a contact at an end of the signal line 27a.
- a contact pin 82 constituting a connection detecting section 81 for detecting whether or not a connection is made to a contact at an end of the signal line 27a.
- the panel 84 is urged so as to press the contact piece 83 connected to the rear end of the contact pin 82.
- a contact piece 85 that is turned on and off is disposed inside a spring 84.
- the contact piece 85 is connected to the signal line 29a, and the contact piece 83 facing the contact piece 85 is also connected to the signal line 29e.
- the signal lines 29a and 29e are connected to the ON Z ⁇ FF detection circuit 86 inside the processor device 6E via the contacts of the signal connector 4b, and the ⁇ NZ ⁇ FF detection circuit 86 controls the aperture of the light source device 5 via the signal line 87. Sends connection detection signal to circuit 19.
- the aperture control circuit 19 performs a normal operation when the connection detection signal set to ⁇ N is input, and performs the normal operation when the OFF unconnected detection signal is input. Stop down to a large aperture, and make the illumination light supplied to the light guide 16 side sufficiently small.
- the illumination light is emitted from the distal end surface serving as the connector receiver 3a of the light guide 16 only when the integrated connector 61 is actually connected to the rigid endoscope main body 21.
- the illuminating light is emitted from the distal end surface serving as the connector receiver 3a of the light guide 16 only when the integrated connector 61 is actually connected to the rigid endoscope main body 21.
- it is possible to emit little or no sufficiently reduced illumination light. Therefore, it is possible to prevent the illuminating light from being wasted when not in use, and to prevent the vicinity of the front end surface of the light guide 16 from becoming hot.
- FIG. 8 shows an endoscope system 1G according to a third modification.
- This endoscope system 1G has a configuration in which a light source unit 91 is provided in the integrated connector 51 in the endoscope system including the rigid endoscope 9A having the integrated connector 51 shown in FIG.
- the rigid endoscope 9G is formed by the cable unit 92 having no light guide cable section 3.
- the light source unit 91 includes a light source lamp 93, a condenser lens 94 for condensing illumination light of the light source lamp 93, and a cover glass 95 covering a window facing the condenser lens 94.
- the illumination light emitted from the light source lamp 93 can be supplied to the light guide 15.
- the integrated connector 51 has a light source section 91 built therein, only the signal cable section 4 extends from the integrated connector 51, and the signal connector 4b at the end of the signal cable section 4 is It is detachably connected to the processor 6G.
- the processor device 6G is, for example, a power supply circuit connected to a signal line 29f having one end connected to the light source lamp 93 and a signal line 97 connected to the signal line 29f in the processor device 6 of FIG. Built-in 98.
- the power supply circuit 98 receives an output signal from the D / A conversion circuit 35 and controls the amount of light emitted from the light source lamp 93 based on the output signal.
- the integrated connector 51 is provided with a guide hole 99 through which the treatment tool is inserted, so that the treatment can be performed through the treatment tool.
- a guide hole 99 is provided at a position facing the channel.
- the number of cables connected to the rigid endoscope main body 2A and extending rearward or the like is reduced, so that operability can be improved.
- the endoscope of the present embodiment is not limited to the rigid endoscope but is replaced by a flexible endoscope (flexible endoscope). Is also applicable.
- a flexible endoscope in which the insertion portion is flexible (flexible) will be described.
- an electronic endoscope having an imaging element at its tip may be provided with a detachable portion in the vicinity of the operation section.
- the surgeon can provide an electronic endoscope and an endoscope system that can be used with the same function as replacing it with another electronic endoscope even during endoscopy. It is intended to do so.
- another electronic endoscope is the same type as that before replacement and is a sterilized new electronic endoscope or a different type of electronic endoscope (for example, viewing direction, thickness, etc.). , Length, function, etc.).
- the front endoscope section (first unit) and the rear endoscope section (second unit) are attached to the detachable section provided near the operation section.
- the unit can be attached to and detached from, so that the surgeon can replace only the front endoscope section during endoscopic examination, etc.
- the electronic endoscope is simply referred to as an endoscope.
- FIG. 9 shows an endoscope system provided with a fifth embodiment
- FIG. 10 shows a configuration of an endoscope of the present embodiment provided with a detachable portion
- FIG. 11 shows a configuration of a peripheral portion of the detachable portion
- 12A and 12B show the configuration of the detachable part in the first modification
- FIG. 13 shows the configuration of the detachable part in the second modification
- FIG. 14 shows the constitution of the detachable part in the third modification.
- FIG. 15 shows a configuration of a coil peripheral portion in a detachable portion in a mounted state
- FIG. 16 shows a configuration of a detachable portion in a fourth modification
- the endoscope system 101 shown in FIG. 9 is basically the same as the endoscope system 301 of the preceding example shown in FIG. By changing the configuration used, the endoscopy can be easily performed as another endoscope by replacing it.
- the endoscope system 101 includes a first endoscope 102, a light source device 103 that supplies illumination light to the first endoscope 102, and a light source that supplies illumination light to the first endoscope 102.
- a monitor 105 is basically the same as the endoscope system 301 of the preceding example shown in FIG. By changing the configuration used, the endoscopy can be easily performed as another endoscope by replacing it.
- the endoscope system 101 includes a first endoscope 102, a light source device 103 that supplies illumination light to the first endo
- the first endoscope 102 is located on the insertion / removal portion 107 near the rear end of the flexible (soft) insertion portion 106 and is on the insertion portion side. Both units of the front endoscope unit 108 and the rear endoscope unit 109 on the operation unit side (or the cable side) are detachably connected (attached) with a single touch.
- the front endoscope unit 108 is abbreviated as the front unit 108 (which is a first unit)
- the rear endoscope unit 109 is abbreviated as the rear unit 109 (which is a second unit).
- the front unit 108 has a flexible insertion portion 106, and a connector ill for connection is provided at a base end of the insertion portion 106.
- the rear unit 109 includes an operating portion 113 provided at a front end thereof with a connector receiver 112 detachably connected to the connector 111, and a universal unit extending from the operating portion 113. And a connector 115 at the end of the universal cable 114 is connected to the light source device 103.
- An electric cable 117 connected to an electric connector 116 provided on a side surface of the connector 115 is connected to a processor device 104 that performs signal processing.
- This processor device 1
- the video signal generated by 04 is output to the monitor 105.
- the insertion section 106 of the front unit 108 includes a hard tip section 121 provided at the tip thereof, a curved section 122 that can freely bend, and a flexible section (soft section) 123 having flexibility.
- the bending section 122 can be bent via the bending drive section 120.
- a light guide 125 for transmitting illumination light is inserted into the insertion portion 106, and the light guide 125 is connected to a connector 111 connected to the connector 111, and the light guide 125 in the rear unit 109 is connected to the light guide 125.
- the light guide 126 further passes through the universal cable 114, and the end thereof is attached to the light source device 103 as a light guide base protruding from an end surface of the connector 115.
- the illumination light of the lamp 129 which is turned on by the lamp driving power from the lamp driving circuit 128 in the light source device 103, passes through the aperture 130, and is further condensed by the condenser lens 131 to the light guide base. Incident on the end face of.
- the illuminating light incident on the end face of the light guide base is transmitted by the light guides 126 and 125 and is emitted from the end face of the light guide 125 fixed to the illumination window of the tip 121 to illuminate an object such as an affected part. I do.
- the illuminated subject forms an optical image of the subject at the image forming position by the objective lens 133 attached to the observation window adjacent to the illumination window.
- a charge-coupled device (abbreviated as CCD) 134 is arranged at this image forming position.
- the CCD 134 is connected to a signal cable 136 via a buffer IC 135 that amplifies current and the like, and the signal cable 136 is passed through the input section 106 and provided on the connector 111 as shown in FIGS. 10 and 11. Leads to the electrical connector 137 shown.
- a plurality of contact pins 138 protrude from the electrical connector 137, and each signal line 136a of the signal cable 136 is connected to the base end of the contact pin 138.
- an electrical connector receiver 139 is provided on the connector receiver 112 so as to face the electrical connector 137 provided on the connector 111.
- a signal line of a signal cable 141 passed through the operation unit 113 is connected to a base end of a contact pin receiver 140 provided on the electrical connector receiver 139.
- each contact pin 138 of the electric connector 137 into each contact pin receiver 140 of the electric connector receiver 139, the signal cables 136 and 141 are electrically connected to each other so that they are electrically connected to each other. Signals can be transmitted, and mechanical connection (attachment) between the connector 111 and the connector receiver 112 can be performed.
- the signal cable 141 inserted into the operation unit 113 is further inserted through the universal cable 114, and further from the electric connector 116 of the connector 115 via the electric cable 117 to the CCD drive circuit 143 and the CDS circuit 144 in the processor device 104. Connected to. Then, by applying the CCD drive signal from the CCD drive circuit 143 to the CCD 134, the optical image formed on the imaging surface of the CCD 134 is photoelectrically converted and output as a CCD output signal.
- the CCD output signal is input to the CDS circuit 144, the signal component is extracted and converted to a baseband signal, input to the video processing circuit 145, converted to a video signal, and output to the monitor 105,
- the subject image picked up by the CCD 134 is displayed on the display surface of the monitor 105 as an endoscope image.
- a video signal output from the video process circuit 145 is input to an aperture control circuit 132 in the light source device 103, and a dimming signal is generated by the aperture control circuit 132. By controlling the opening amount, the light is adjusted so as to obtain an appropriate illumination light amount.
- a potentiometer 146 is provided at the base end of the bending knob 124, and this potentiometer 146 is also connected to a contact pin receiver 140 of an electric connector receiver 139 via a signal line 146 a. .
- This contact pin receiver 140 is connected to a drive control circuit 147 constituting the bending drive unit 120 via a contact pin 138 connected to the contact pin receiver 140 and a signal line 147a connected to the contact pin 138. .
- the drive control circuit 147 electrically drives the bending section 122 based on the detection signal of the potentiometer 146 that generates an electric signal corresponding to the operation amount of the bending knob 124.
- the bending portion 122 is constituted by connecting a plurality of bending pieces 151 to each other by a rivet so as to be able to rotate.
- curved wires 152 are passed along the up, down, left, and right directions, and each of the curved wires 152 has a front end fixed to the front end 121 and a rear end connected to the rack 153. It is connected. 9 and 10 show one set of bending mechanisms in the vertical and horizontal directions. In practice, there are two sets of bending mechanisms for left and right and up and down directions.
- Each rack 153 mates with a pinion 155 attached to the rotation shaft of a motor 154, and is driven to rotate by a motor 154, thereby pulling or relaxing the bending wire 152, and bending the bending wire 152 in the direction in which the pulling is performed. 122 is driven to bend.
- Each motor 154 is connected to a drive control circuit 147, and the drive control circuit 147 drives the bending section 122 in response to the operation of the bending knob 124 as described above.
- a front unit 108 and, for example, a front unit 108B of a different type are connected to a rear unit 109 to form an endoscope as a second endoscope. It also allows for endoscopy.
- the front unit 108B has, for example, a different diameter value of the insertion part 6 in the case of the front unit 108, and has a smaller diameter insertion part 106B.
- the front unit 108B has a smaller number of pixels than the CCD 134 in the case of the front unit 108, for example, and adopts the CCD 134B.
- the front unit 108B incorporates a memory 157 storing information in order to generate D3 information unique to the front unit 108B, for example, around the connector 111, and this memory 157 is connected via a signal line. It is connected to the contact pin 138 of the electrical connector 137 (the signal line of the signal cable 136 is not connected).
- the processor device 104 reads out ro information of the memory 157 to Driving and signal processing corresponding to the CCD 134B in the case of the endoscope 2 can be performed.
- Other configurations are the same as those of the front unit 108.
- the front unit 108 may also have a configuration in which the ID code generation memory 157 is incorporated. That is, by storing the unique identification information in the front unit 108, it is possible to easily perform signal processing or the like corresponding to the CCD 134 built in the front unit 108.
- the processor device 104 incorporates a CPU 158 as control means, and controls the operations of the CCD drive circuit 143, the CDS circuit 144, and the video process circuit 145 according to the D3 information of the memory 157.
- the electric signal transmission means using electric contacts and the two light guides 125 arranged to face each other. , 126 are formed as a means for transmitting illumination light.
- the first endoscope 102 in which the front unit 108 and the rear unit 109 are connected (attached) at the attachment / detachment unit 107 is formed, as shown in FIG. It can be used in almost the same way as the endoscope 302.
- the first endoscope 102 can be used by being connected to the light source device 103 and the processor device 104 shown in FIG. 9, and the light source device 103 and the processor device shown in FIG. It can also be used by connecting to 104. Further, the endoscope 302 of FIG. 24 can be used by connecting to the light source device 103 and the processor device 104 of FIG. Therefore, the endoscope 102 and the endoscope system 101 ensure compatibility with the existing endoscope 302, the light source device, and the like.
- the operator replaces the endoscope with, for example, an endoscope having a smaller-diameter insertion portion, and then changes the endoscope. If it is desired to perform the inspection, the front unit 108 may be removed from the attachment / detachment unit 107, and the front unit 108B having the narrower insertion unit 106B may be connected to the rear unit 109.
- the detachable part 107 that can be attached and detached with one touch near the operation part 113 is provided, so even during the endoscope inspection, it is a simple operation to replace only the front unit, and endoscopes of different types can be easily changed. It can be used as
- the endoscopic examination is completed, and in order to proceed to the examination of the next patient, in the case of the preceding example in FIG. Work is required.
- the attaching / detaching unit 107 may be a transmission unit for transmitting an electric signal, and may be a transmission unit for transmitting another electric signal. Can be shared and simplified.
- the bending knob 124 as an electric indicating means generates an electric signal of a bending direction and a bending amount, and requires a sufficiently small operation force as compared with a case where the bending wire 152 is manually pulled. According to this embodiment, the operability in performing the bending operation can be improved.
- the rear unit 109 is commonly used, the user's economical burden can be reduced as compared with a case where different endoscopes are prepared.
- FIG. 12A shows a configuration of the attaching / detaching portion 107B in the first modification.
- a hook 161 and a concave portion 162 are provided in the attaching / detaching portion 107 of FIG. 10 for positioning in the circumferential direction when the connector 111 and the connector receiver 112 are connected.
- a connector 161 is provided with, for example, a hook 161 protruding in an approximately L-shape, and the other connector receiver 112 is provided with a hook 161. Is provided with a concave portion 162 into which the hook 161 is engaged. Yes.
- the user positions the hook 161 at the position of the concave portion 162 and operates so as to press the connector 111 against the connector receiver 112.
- the protrusion 164 is moved downward by the tapered portion at the tip of the hook 161 so as to be engaged with the recess 162.
- the protrusion 164 returns upward due to the elastic force of the panel 163, and the hook 161 is prevented from coming off from the recess 162 with a predetermined elastic force by the spring 163.
- the connector 111 can be removed from the connector receiver 112 by performing an operation of detaching with a force greater than the elastic force.
- Other configurations are the same as those in FIG.
- the hook 161 and the concave portion 162 can be used for positioning when being connected to the attaching / detaching portion 107, and the strength of holding the connection when connected can be increased.
- the other effects are the same as those of the structure shown in FIG.
- the pulling shape portions 166 and 167 may be provided, respectively, and the pulling shape portions 166 and 167 may be hooked to each other to be used for positioning when connecting.
- the connector 111 and the connector receiver 112 when connecting the connector 111 and the connector receiver 112, the connector 111 and the connector receiver 112 must be connected without aligning the pulling-shaped portions 166 and 167 (in the circumferential direction). If you can't do it, it's a good configuration.
- FIG. 12A Other configurations are the same as those in FIG. 12A.
- the operation and effect of the configuration of FIG. 12B are almost the same as those of FIG. 12A.
- positioning means for connection for example, as shown in FIG. 12B, positioning indicators 169a, 169b and the like may be provided on the outer peripheral surfaces of the connector 111 and the connector receiver 112. good.
- FIG. 13 shows a configuration of the attaching / detaching portion 107C in the second modification.
- This detachable part 107C In addition, a plurality of contact pins 173 and the ends of the light guide 125 are fixed by being hardened by a hard resin mono-reed 172 which seals the open end of the cylindrical body 171 serving as an exterior member of the connector 111.
- a signal line 136a and a signal line 147a connected to the drive control circuit 147 are provided at the base end of each contact pin 173 inside the connector 111 sealed with a resin mold 172 having a function as an insulator together with a sealing function. Each is connected by soldering. Further, on the outer surface of the resin mold 172, an electrode 173a integrally provided at the tip of each contact pin 173 is provided so as to be flush.
- the open end of the cylindrical body 174 serving as an exterior member of the connector receiver 112 is sealed with an elastic insulating plate 175 made of rubber, for example. And the end of the light guide 126 is embedded and fixed.
- a signal line 141a is connected to a base end of the contact pin 176 inside the connector receiver 112 sealed by the insulating plate 175 by soldering.
- an electrode 176a integrally provided at the tip of each contact pin 176 is provided so as to slightly protrude from the end face of the connector receiver 112.
- the electrodes 173a and 176a are brought into contact with each other to be in an electrically conductive state.
- a fitting portion 174a that fits the inner diameter of the cylindrical body 174 with the outer diameter of the cylindrical body 171 of the connector 111 to maintain the mounted state is provided.
- FIG. 14 shows a configuration of a detachable portion 107D according to the third modification.
- the force used for the contact pin 173 and the contact pin 176 in the attachment / detachment part 107C in FIG. 13 The coils 180 and 181 for non-contact signal transmission by electromagnetic coupling were adopted in this attachment / detachment part 107D. ing.
- a transmission / reception circuit 182 to which signal lines 136a and 147a are connected, and a plurality of coils 180 connected to the transmission / reception circuit 182 to enable bidirectional signal transmission by electromagnetic coupling. Is provided.
- the transmission / reception circuits 182 and 183 amplify and supply the signal to be transmitted to the coil 180 or 181, respectively, and also transmit the signal transmitted by electromagnetic coupling with the coil 181 or 180 opposed by the coil 180 or 181. Amplify. That is, the transmission / reception circuits 182 and 183 have a function as a buffer that efficiently transmits signals transmitted / received (transmitted or received) via the coils 180 and 181.
- the coils 180 and 181 are carried, for example, in resin molds 172a and 172b, and when the connector 111 and the connector receiver 112 are mounted, the coils 180 and 181 are close to each other as shown in FIG. And are provided so as to face each other.
- Each of the coils 180 and 181 is formed by winding a conductive wire around, for example, a U-shaped magnetic body 180a or 181a having a high magnetic permeability, and can efficiently transmit a signal by electromagnetic coupling between the opposing coils 180 and 181. Like that.
- the electrical connector 137 and the electrical connector receiver 138 have a structure having irregularities due to normal electrical contacts between the contact pin 138 and the contact pin receiver 139, so that the Alternatively, in the case of sterilization, it is necessary to put on a waterproof cap to prevent leakage of chemicals, vapor, gas, etc. to the electrical contacts.
- the detachable portion 107D since the detachable portion 107D has a contactless structure without electric contact by the uneven portion, the waterproof design is easy, and the cleaning and cleaning can be performed without the waterproof cap. It can be disinfected or sterilized. In other words, in cleaning and sterilization work Saves time and effort.
- FIG. 16 shows the configuration of the attaching / detaching portion 107E in the fourth modification.
- signals are transmitted and received in the attaching / detaching portion 107E in a non-contact manner by optical signals from a light emitting element and a light receiving element (an optical fiber may be used as described later). ,).
- the light emitting die instead of 180, 181 and the transistor (abbreviated as PT) 184, 185 186 and 187 are used.
- buffer circuits 188 and 189 for amplifying are employed instead of the transmitting and receiving circuits 182 and 183.
- FIG. 17 shows details of the light transmitting / receiving unit in FIG.
- the LED 184 converts the current-amplified CCD output signal from the buffer circuit 188 into an optical signal and outputs the optical signal to the opposing PT 185 in a non-contact manner.
- the PT 185 converts the received optical signal into an electric signal and outputs it to the buffer circuit 189, and the buffer circuit 189 amplifies the electric signal.
- the plurality of LEDs 187 convert the CCD drive signal into an optical signal and output the optical signal to the opposing PT186. Also, a signal from the potentiometer 146 is transmitted via the LED 187 and the PT 186.
- the DC power supply required in front unit 108 is generated by electromagnetic coupling by coils 181 and 180.
- the coil 181 of the rear unit 109 is driven by an AC signal, is electromagnetically transmitted to the coil 180 of the front unit 108 facing the coil 181 in a non-contact manner, and the AC signal transmitted to the coil 180 is connected to the power supply circuit 190.
- the DC power is generated by rectification and smoothing. Then, this DC power is supplied to elements and circuits that require DC power, such as the CCD134.
- Example 6 shows an endoscope system 201 provided.
- the endoscope system 201 includes an endoscope 202 according to the sixth embodiment, a light source device 103 similar to the fifth embodiment, a processor device 104, and a monitor 105.
- a bending drive unit 120 as an electric bending drive unit is provided on the front unit 108 side.
- the operation unit 113 of the rear unit 109 is used.
- a motor 154 serving as a bending drive source is provided in the vicinity of the inside of the connector receiver 112.
- the rotating shaft of the motor 154 is provided with an engaging recess 204 projecting from the end face of the connector receiver 112, and is engaged with the engaging projection 205 projecting from the end face of the connector 111 of the front unit 108. , The torque of the motor 154 is transmitted. O-rings 206 and 207 for watertightness and airtightness are provided around the rotation shafts of the recess 204 and the protrusion 205, respectively.
- a gear 209 is provided at the tip of a shaft 208 provided with each protrusion 205, and each gear 209 is connected to a rear end of a curved wire 152 and has an uneven portion 21 la provided on a movable rod 211. ⁇ They are combined.
- the rod 211 is moved back and forth by the rotation of the motor 154 to pull or relax the bending wire 152 so that the bending portion 122 can be bent.
- the signal cables 136 and 141 are connected to the conversion circuits 213 and 214, respectively, and are also connected to the optical fibers 215 and 216.
- the conversion circuits 213 and 214 convert the electric signal into an optical signal and output the same to the optical fibers 215 and 216, and also convert the optical signal into an electric signal and output the same to the signal cables 136 and 141.
- a CCD drive signal from the signal cable 141 is converted into an optical signal by the conversion circuit 214, output to the base end surface of the optical fiber 216, and output light from the distal end surface of the optical fiber 216 to the opposing optical fiber 215 side. I do.
- the optical signal from the optical fiber 215 is converted into an electric signal (CCD driving signal) by the conversion circuit 213 and applied to the CCD 134 via the signal line of the signal cable 136.
- the CCD output signal output from the CCD 134 is converted into an optical signal by the conversion circuit 213.
- the signal is input to the conversion circuit 214 via the optical fibers 215 and 216.
- the signal is converted into an electric signal (CCD output signal) and input to the processor device 104 via the signal line of the signal cable 141.
- a cross pad 217 for bending operation is provided on the outer peripheral surface of the operation unit 113.
- the cross pad 217 is provided with switches for instructing upward, downward, left, and right bending at four positions indicated by U, D, L, and R. These switches are connected to the operation unit via signal lines 218. It is connected to a control circuit 219 provided in 113.
- the control circuit 219 controls the rotation drive of the motor 154 in accordance with the switch operation by the cross pad 217.
- magnets 221 and 222 are provided on the end surfaces of the connector 111 and the connector receiver 112 in order to determine the mounting position and maintain the mounted state.
- magnets 221 and 222 have a magnet part and an electric contact part, and are connected to each other.
- power can be supplied to the power supply line connected to the opposing magnet 221 by the magnet 222 connected to the power supply line of the signal cable 141.
- the power supply line connected to the magnet 221 serves as a power supply signal line for the signal cable 136.
- a memory 157 for generating # 3 information is provided in the front unit 108 so that the ro information can be transmitted to the rear unit 109 via the conversion circuit 213.
- a memory 224 for generating D3 information is provided in the rear unit 109 so that the information can be transmitted to the processor device 104.
- the processor device 104 Based on the information, the processor device 104 generates a CCD drive signal corresponding to the number of pixels, characteristics, and the like of the CCD 134, and controls signal processing when generating a video signal. Note that in FIG. 18, only one front unit 108 is shown. As shown in FIG. 9, another front unit having different types, characteristics, etc. may be connected to the rear unit 109 for use. Monkey
- FIG. 19 is a perspective perspective view showing the configuration in the vicinity of the connector 111 and the connector receiver 112 constituting the attaching / detaching portion 107F.
- an electric bending drive unit is provided on the rear unit 109 side. Therefore, the internal structure of the front unit 108 can be simplified as compared with the case of the fifth embodiment.
- the rear unit 109 that is commonly used is provided with the electric bending drive means, so that the configuration of the front unit 108 to be replaced can be simplified and the cost can be reduced. You can also.
- the other effects are almost the same as those of the fifth embodiment.
- FIG. 20 shows a configuration of the attaching / detaching portion 107G in the first modification.
- gears 231 and 232 are employed instead of the engagement by the concave and convex portions in the sixth embodiment. Otherwise, the configuration is the same as that of the sixth embodiment.
- This modification has substantially the same operation and effect as the sixth embodiment.
- FIG. 21 shows a configuration of the attaching / detaching portion 107H according to the second modification.
- magnets 241 and 242 are employed instead of the engagement by the concave and convex portions in the sixth embodiment. That is, by rotating the magnet 242 together with the rotation of the motor 154, the magnet 241 that is disposed to face the magnet 242 and that is magnetically attracted can also be rotated.
- FIG. 22 is a perspective view of the configuration of FIG. 21 when viewed from the lateral direction.
- the magnets 241, 242 are rotatably disposed inside seal plates 243, 244 for sealing the respective end faces of the connector 111 and the connector receiver 112.
- the end faces of the connector 111 and the connector receiver 112 can be made flat, so that cleaning and disinfection can be performed easily and in a short time.
- FIG. 23 shows an endoscope 252 of a third modification.
- the endoscope 252 is, for example, the endoscope shown in FIG. 18 in which an operation unit cover 253 is provided on a front unit.
- the operation unit cover 253 extends rearward from the outer peripheral surface of the connector 111, and the operation unit cover 253 can cover at least the front portion of the operation unit 113 of the rear unit 109. I have.
- the operation section cover 253 is provided with a pad cover 254 that covers the substantially disk-shaped curved operation pad 217B.
- the bending operation pad 217B is used in place of the cross pad 217 described above. As in the case, there is a switch for instructing bending in four directions.
- Equipment parts that the operator touches during the operation are sterilized in advance before the operation.
- a sterilized drape bag There is also a method of using it by covering it with a cover.
- an operation unit cover 253 which is a flexible drape adapted to a shape capable of covering the operation unit 113 to which the front unit 108 is connected is integrally provided at the rear end of the frequently used front unit 108. It is provided.
- the detachable unit provided near the operation unit can be separated into an endoscope composed of a front unit and a rear unit, so that the operator can replace the end unit with another front unit during endoscopic examination. Endoscopic examinations can be performed easily.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05719642A EP1721568A4 (en) | 2004-03-02 | 2005-02-28 | Borescope |
US11/511,954 US20060287576A1 (en) | 2004-03-02 | 2006-08-29 | Endoscope |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004057914 | 2004-03-02 | ||
JP2004-057914 | 2004-03-02 | ||
JP2004334882A JP2005279253A (ja) | 2004-03-02 | 2004-11-18 | 内視鏡 |
JP2004-334882 | 2004-11-18 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/511,954 Continuation US20060287576A1 (en) | 2004-03-02 | 2006-08-29 | Endoscope |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005082230A1 true WO2005082230A1 (ja) | 2005-09-09 |
Family
ID=34914493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/003325 WO2005082230A1 (ja) | 2004-03-02 | 2005-02-28 | 内視鏡 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060287576A1 (ja) |
EP (1) | EP1721568A4 (ja) |
JP (1) | JP2005279253A (ja) |
KR (1) | KR20060122943A (ja) |
WO (1) | WO2005082230A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
KR20060122943A (ko) | 2006-11-30 |
EP1721568A1 (en) | 2006-11-15 |
US20060287576A1 (en) | 2006-12-21 |
EP1721568A4 (en) | 2009-07-22 |
JP2005279253A (ja) | 2005-10-13 |
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