WO2006103846A1 - 電子内視鏡用信号処理装置及び電子内視鏡装置 - Google Patents
電子内視鏡用信号処理装置及び電子内視鏡装置 Download PDFInfo
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- WO2006103846A1 WO2006103846A1 PCT/JP2006/303074 JP2006303074W WO2006103846A1 WO 2006103846 A1 WO2006103846 A1 WO 2006103846A1 JP 2006303074 W JP2006303074 W JP 2006303074W WO 2006103846 A1 WO2006103846 A1 WO 2006103846A1
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- electronic endoscope
- solid
- signal
- information
- state imaging
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- 238000003384 imaging method Methods 0.000 claims abstract description 61
- 238000005286 illumination Methods 0.000 claims description 50
- 230000003321 amplification Effects 0.000 claims description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000001839 endoscopy Methods 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001444 catalytic combustion detection Methods 0.000 description 88
- 230000003287 optical effect Effects 0.000 description 21
- 230000005284 excitation Effects 0.000 description 13
- 230000006870 function Effects 0.000 description 11
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000000799 fluorescence microscopy Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005375 photometry Methods 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- 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
- A61B1/045—Control thereof
-
- 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
- A61B1/043—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 for fluorescence imaging
-
- 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
- A61B1/06—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 illuminating arrangements
- A61B1/0638—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 illuminating arrangements providing two or more wavelengths
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
Definitions
- the present invention relates to an electronic endoscope signal processing device and an electronic endoscope device that perform signal processing on an electronic endoscope that includes a plurality of solid-state imaging devices.
- An electronic endoscope provided with a solid-state image sensor at the distal end of an insertion portion has been widely adopted for endoscopy in medical fields, treatment with a treatment tool, and the like.
- Japanese Unexamined Patent Application Publication No. 2003-26410 displays information on a treatment instrument channel of an electronic endoscope on a monitor screen.
- the preceding example allows the user to divide the outer diameter of the treatment tool such as forceps that can be used and which direction force treatment tool comes out on the endoscope screen.
- the solid-state image sensor force used for observation is switched to the other solid-state image sensor or selected.
- the position of the distal end opening of the treatment instrument channel changes with respect to the switched solid-state imaging device. For this reason, in the preceding example, even when the same forceps are used, the direction in which the forceps appear in the observation visual field is different, which is different from the information on the displayed treatment instrument channel.
- the present invention has been made in view of the above-described points.
- one solid-state image sensor actually used in an electronic endoscope equipped with a plurality of solid-state image sensors is selected, the selection is performed. It is an object of the present invention to provide an electronic endoscope signal processing device and an electronic endoscope device that enable display of appropriately corresponding information.
- the signal processing apparatus for an electronic endoscope of the present invention includes an endoscope connecting portion to which an electronic endoscope provided with at least a plurality of solid-state imaging elements is connected,
- a signal processing circuit for performing a signal processing on an output signal of one selected solid-state imaging device based on the selection signal and generating a video signal
- An information switching control unit that switches information related to the electronic endoscope displayed on a display device corresponding to one solid-state imaging device for which the output signal is selected;
- the information switching control unit can make appropriate information related to the electronic endoscope displayed on the display device corresponding to the case of the actually selected solid-state imaging device. .
- the electronic endoscope apparatus of the present invention includes an electronic endoscope provided with a plurality of solid-state imaging elements, and at least one output signal of the plurality of solid-state imaging elements provided in the electronic endoscope.
- a signal processing circuit for performing a signal processing on an output signal of one selected solid-state imaging device based on the selection signal and generating a video signal
- An information switching control unit that switches information related to the electronic endoscope displayed on a display device corresponding to one solid-state imaging device for which the output signal is selected;
- the information switching control unit can make appropriate information related to the electronic endoscope displayed on the display device corresponding to the case of the actually selected solid-state imaging device.
- FIG. 1 is a block diagram showing the overall configuration of an electronic endoscope apparatus provided with Embodiment 1 of the present invention.
- FIG. 2 is a front view of the tip.
- FIG. 3 is a diagram showing a configuration of a rotary filter, filter characteristics, and the like.
- FIG. 4 is a flowchart showing the operation contents in the present embodiment.
- FIG. 5A is a diagram showing a monitor display screen in the normal observation mode.
- FIG. 5B is a diagram showing a monitor display screen in the fluorescence observation mode.
- An object of the present invention is to provide an electronic endoscope signal processing device and an electronic endoscope device capable of appropriately displaying information related to the electronic endoscope.
- an electronic endoscope apparatus 1 including Example 1 of the present invention is inserted into a body cavity, and an electronic endoscope 2 for observing and treating a subject such as an affected part, and the electronic endoscope A light source device 3 that supplies RGB light for special observation and special light for special observation to the mirror 2, and an electronic device that generates a video signal by performing signal processing on the endoscope video signal imaged by the electronic endoscope 2
- the processor 4 as an endoscope signal processing device, the video signal output from the processor 4 being input, the monitor 5 displaying an endoscopic image corresponding to the video signal, and the video signal Equipped with a VTR40 as a video signal recording device that records video
- the electronic endoscope 2 includes an insertion portion 6 that is inserted into the body cavity of a patient, and an operation portion 7 that is provided at the rear end of the insertion portion 6. 8 is extended.
- a light guide 9 for transmitting illumination light is inserted into the insertion portion 6, and a light guide connector 10 a at the rear end is detachably connected to the light source device 3.
- This light guide 9 transmits illumination light from the light source device 3 (excitation light at the time of fluorescence observation in the special light observation mode), and the light guide tip attached to the illumination window at the tip 11 of the insertion portion 6
- Illumination light is emitted from the surfaces 9a and 9b (see FIG. 2) to illuminate a subject such as an affected area (excitation light is irradiated during fluorescence observation).
- first and second charge-coupled devices (abbreviated as CCD) 13A and 13B are disposed as solid-state image sensors at the imaging positions of the objective lens systems 12A and 12B, respectively.
- the second CCD 13B is a high-sensitivity CCD having an amplification function inside the CCD element, and is used only in the fluorescence observation mode in the special light observation mode.
- the first CCD13A is used in the normal observation mode (visible observation mode) for observation in the visible region, and in the infrared light observation mode and the narrowband light observation mode (except for the fluorescence observation mode) in the special light observation mode. used.
- the objective lens systems 12A and 12B are zoom optical systems in which a zoom magnification can be changed by moving a part of the lenses of the objective lens systems 12A and 12B in the optical axis direction by driving means (not shown). Is formed.
- the objective lens systems 12A and 12B may be of a zoom optical system or may not be a zoom optical system.
- the excitation light cut filter 14 is provided in front of the CCD 13B in order to observe the fluorescence by cutting the excitation light.
- the signal lines 15a and 15b having one end connected to both CCDs 13A and 13B are passed through the insertion portion 6, the operation portion 7 and the universal cable 8, and the other end reaches the signal connector 10b at the end of the universal cable 8. .
- the signal connector 10b is detachably connected to the signal connector receiver 4a of the processor 4.
- This signal connector receiver 4a constitutes an endoscope connecting portion to which the electronic endoscope 2 is detachably connected.
- switching switches 16a and 16b that can be switched in conjunction with each other are provided in the signal connector 10b. Then, by switching the signal lines 15a and 15b connected to both the CCDs 13A and 13B via the switching switches 16a and 16b, one CCD to be actually used for imaging can be selected according to the observation mode. .
- the switching means for switching both the CCDs 13A and 13B is provided in the electronic endoscope 2. However, the CCD to be driven on the processor 4 side may be switched without providing the switching means. Good.
- a channel 17 is provided in the insertion portion 6, and this channel 17 is opened at a treatment tool penetration port 18 near the front end of the operation portion 7.
- the treatment tool 19 can be inserted from the pier 18.
- the channel 17 is opened as a tip opening 17 a on the tip surface of the tip portion 11. Then, the surgeon can project the distal end side of the treatment tool 19 inserted through the channel 17 from the distal opening 17a to collect the affected tissue, or perform a treatment such as excision of the lesioned part with the treatment tool. it can.
- an air / water supply pipe (not shown) is provided in the insertion portion 6, and the nozzle 20 at the tip of the air / water supply pipe is, for example, an objective lens system 12B and its extension destination as shown in FIG. It faces the objective lens system 12A. Then, the surgeon can remove the adhered matter that obstructs the observation field of view attached to the outer surface of the objective lens system 12B and the objective lens system 12A by performing an air supply or water supply operation.
- the operation unit 7 of the electronic endoscope 2 is provided with a scope switch unit 21 that also has a plurality of operation switch forces.
- the scope switch unit 21 has an observation mode selection switch for switching or selecting an observation mode. 21a etc. are provided.
- the observation mode selection operation means such as the observation mode selection switch 21a has a function of an observation mode selection signal for selecting an observation mode, and a CCD actually used corresponding to the observation mode. Also functions as a CCD selection signal.
- a scope information storage unit 22 that stores information unique to the electronic endoscope 2 is provided in the signal connector 10b of the electronic endoscope 2, for example.
- the scope information storage unit 22 includes a memory 22a serving as a storage unit (storage unit) that stores scope information, and a CPU 22b that performs processing such as storing information in the memory 22a and reading stored information. Become.
- the memory 22a stores a plurality of (for example, 38) white balance setting value data, and the specific data structure of the data is, for example, "Light source device serial number” + "Color filter type data” + "White balance setting value”
- the memory 22a stores data related to the solid-state image sensor as described below.
- Endoscope treatment tool channel information (channel inner diameter, solid-state image sensor direction position relative to the imaging field range, applicable treatment tool identification color information)
- the light source device 3 includes a lamp 23 that generates illumination light including visible light.
- the illumination light emitted from the lamp 23 is incident on the band switching filter 25 through the diaphragm 24 disposed in the optical path.
- the light transmitted through the band switching filter 25 is incident on the rotary filter 27.
- the light that has passed through the rotary filter 27 is collected by the condenser lens and is incident on the incident end of the light guide 9.
- the rotary filter 27 is moved together with a motor 26 that rotates the rotary filter 27 around the optical axis of the illumination light, for example, by a plunger 31 in a direction orthogonal to the optical path of the illumination light (in the direction of the arrow indicated by symbol A in FIG. 1).
- the motor 26 is attached to the end of the arm of the plunger 31 and the amount of protrusion of the arm is made variable so that the rotary filter 27 and the motor 26 are orthogonal to the optical path of the illumination light (reference A in FIG. 1). (In the direction of the arrow).
- the band switching filter 25 is rotatably attached to the rotating shaft of the motor 32, and the motor 32 is driven by a filter & aperture driving circuit 33. Further, the filter & aperture driving circuit 33 drives the aperture 24 and also drives the plunger 31.
- the filter & aperture driving circuit 33 is controlled by a light source control circuit 34 provided in the light source device 3.
- the light source control circuit 34 includes a CPU 35 as control means and a memory 36 that stores information unique to the light source device 3 and the like.
- the memory 36 stores the following data.
- Light source device usage data (light source device usage count, usage time, total lamp lighting time, RGB filter Z total usage count Z time for each special light filter).
- the CPU 35 is connected to a connector 38 provided in the processor 4 via a connector 37 provided in the light source device 3 through a communication signal line.
- the CPU 35 can perform two-way communication with the CPU 41 as a control means provided in the processor 4.
- the CPU 41 when an operation such as switching (or selecting) the observation mode is performed by the user operating the observation mode selection switch 21a or the like, the CPU 41 performs the function of the illumination light emission control means in the light source device 3. Communicates with CPU35. Then, the CPU 41 controls the illumination light corresponding to the observation mode to be supplied (exited) to the light guide 9 of the electronic endoscope 2 via the CPU 35.
- the light source device 3 is provided with a front panel 42.
- the front panel 42 has a plurality of operation switches 43 for switching or selecting illumination light (also referred to as observation light) used for observation, as well as power and intensity of observation light that can be selected in the case of the light source device 3.
- An LED (abbreviated as L in Fig. 1) 44 is provided to notify the user when the power is on and off.
- the operation switch 43 and the LED 44 are connected to the CPU 35 via a signal line.
- a plurality of operation switches 43 provided on the front panel 42 of the light source device 3 are also provided with a mode switching switch for switching the observation mode, and when the mode switching switch is operated, In this case, the observation mode is switched.
- FIG. 3 is an explanatory diagram of the structure of the filter used in the electronic endoscope 2 and the characteristics of each filter.
- the RBG filter 28 for normal observation is arranged on the inner circumference side of the concentric circle, and the fluorescence observation filter 29 is arranged on the outer circumference side of the concentric circle. . Then, one of the filters is selected according to the observation mode and is inserted on the optical path of the illumination light.
- the RGB filter 28 for normal observation arranged on the inner peripheral side is composed of an R filter 28a, a G filter 28b, and a B filter 28c. These filters are shown in FIG. Thus, it has a transmission characteristic that covers the visible wavelength region.
- the R filter 28a is set to transmit the 600 nm to 700 nm red wavelength band
- the G filter 28b is set to transmit the 500 nm to 600 nm green wavelength band
- the B filter 28c is set to transmit the 400 nm to 500 nm blue wavelength band. ing.
- RGB filter 28 is also used for infrared light observation
- R filter 28a and G filter 28b pass through the 790nm-820nm wavelength band
- B filter 28c passes through the 900nm-980nm wavelength band. Respectively.
- the fluorescence observation filter 29 for fluorescence observation arranged on the outer peripheral side includes a G2 filter 29a, an E filter 29b, and an R2 filter 29c, and each filter has a transmission as shown in FIG. It has characteristics.
- the G2 filter 29a is set to transmit a wavelength band of 540 nm to 560 nm
- the E filter 29b is set to transmit a wavelength band of 400 nm to 470 nm
- the R2 filter 29c is set to transmit a wavelength band of 600 nm to 660 nm.
- the transmission characteristics of the G2 filter 29a and the R2 filter 29c are set to a low level, and the green and red color signals (hereinafter referred to as G2 signal and R2 respectively) captured under these narrow-band illumination lights.
- the band switching filter 25 includes a normal fluorescence observation filter 25a, a narrowband light observation filter 25b, and an infrared light observation filter 25c arranged on concentric circles.
- One of the filters is selected according to the observation mode and inserted into the optical path of the illumination light.
- the fluorescence observation filter 25a is set to transmit a wavelength band around 400nm-660nm
- the infrared light observation filter 25c is 780nm- It is set to transmit the wavelength band near 950 nm.
- the narrowband light observation filter 25b is composed of a three-peak filter.
- the electronic endoscope apparatus 1 equipped with the present embodiment by limiting the wavelength band of the irradiation light, there are three types of narrow band light observation, infrared light observation, and fluorescence observation corresponding to normal observation and special light observation. It is possible to observe the subject in four different observation modes. More specifically, in the case of normal observation, imaging is performed under frame sequential light in the visible light region by R, G, and B, and a normal endoscopic image is generated for the captured signal. .
- observation modes are set by the user operating selection operation means such as the observation mode selection switch 21a.
- the observation mode selection switch 21a When the observation mode selection switch 21a is operated, an instruction signal is output to the CPU 41 constituting the control means in the processor 4.
- the CPU 41 sends an instruction signal (more specifically, a mode selection signal) from the observation mode selection switch 21a to the CPU 35 of the light source device 3.
- the CPU 35 controls the amount of rotation (rotation angle) of the plunger 31 and the motor 32 via the filter & aperture drive circuit 33, and is arranged in the illumination optical path of the lamp 23 according to the instructed observation mode.
- the filter is switched to the RGB filter 28 or the fluorescence observation filter 29, and the band switching filter 25 is selected and controlled. Specifically, when the normal observation mode, the narrow-band light observation mode, and the infrared light observation mode are set, the RGB filter 28 disposed on the inner peripheral side of the rotary filter 27 is illuminated. It is inserted into the optical path of light. When the fluorescence observation mode is set, the fluorescence observation filter 29 arranged on the outer peripheral side of the rotary filter 27 is inserted in the optical path of the illumination light.
- the normal fluorescence observation filter 25a is inserted in the optical path of the illumination light.
- the narrow-band light observation filter 25b is inserted into the optical path of the illumination light.
- the infrared light observation filter 25c is inserted in the optical path of the illumination light.
- the illumination light emitted from the lamp 23 is the normal 'fluorescence observation filter 25a having the characteristics shown in FIG. 3 (F) and the RGB filter 28 having the characteristics shown in FIG. 3 (B). , Only light in the red, green, and blue wavelength bands is filtered and sequentially emitted from the light source device 3 to the light guide 9.
- the illumination light emitted from the lamp 23 includes a narrow-band light observation filter 25b having the characteristics shown in FIG. 3 (G) and an RGB having the characteristics shown in FIG.
- a narrow-band light observation filter 25b having the characteristics shown in FIG. 3 (G) and an RGB having the characteristics shown in FIG.
- the finoleta 28 By passing through the finoleta 28, only light in the wavelength bands of 600 nm—630 nm, 530 nm—560 nm, and 400 ⁇ m—430 nm is filtered and sequentially emitted from the light source device 3 to the light guide 9.
- the illumination light emitted from the lamp 23 includes an infrared light observation filter 25c having the characteristics shown in FIG. 3 (F) and an RG having the characteristics shown in FIG. 3 (B).
- the B filter 28 By passing through the B filter 28, only light in the wavelength bands of 790 nm—820 nm, 790 nm—820 nm, 900 nm—980 nm is filtered and sequentially emitted from the light source device 3 to the light guide 9.
- the illumination light intensity emitted from the lamp 23 is a normal fluorescence observation filter 25a having the characteristics shown in Fig. 3 (F), and the fluorescence having the characteristics shown in Fig. 3 (C).
- the light observation finalizer 29 By passing through the light observation finalizer 29, only light in the wavelength bands of 540 nm-560 nm, 390 nm-450 nm, 600 nm-620 nm is filtered and sequentially emitted from the light source device 3 to the light guide 9.
- light having a wavelength band of 390 nm to 450 nm is used as excitation light for exciting autofluorescence from a living tissue.
- the illumination light incident on the light guide 9 is, as shown in FIG.
- the light is emitted from b and irradiated to a subject such as a region to be inspected.
- the subject In the normal observation mode, the subject is irradiated with R, G, B plane sequential illumination light, and in the fluorescence observation mode, the subject is irradiated with G2, E, R2 plane sequential illumination light (E Illumination light is used as excitation light).
- the CCD 13B In the fluorescence observation mode, the CCD 13B is used, and an excitation light cut filter 14 is disposed on the optical path between the CCD 13B and the objective lens system 12B, and the excitation light of 390 nm to 450 nm out of the reflected light from the subject. To extract fluorescence.
- the excitation light cut filter 14 is set so as to transmit a wavelength band of 470 nm or more, and is set so as not to overlap with the transmission characteristics of the E filter 29b. .
- the surface-sequential illumination light is irradiated, and scattered light, reflected light, or fluorescence is generated from the subject. These lights pass through the excitation light cut filter 14, are imaged on the photoelectric conversion surface of the CCD 13B by the objective lens system 12B, and are photoelectrically converted by the CCD 13B.
- the image signal corresponding to the irradiation light that has passed through each filter of the rotary filter 27 is also sequentially output to the processor 4 in time series as the CCD 13A or 13B force.
- the image signals (imaging signals) output in time series are R, B, and G color signals in the normal observation mode, and are imaged under the G2 illumination light in the fluorescence observation mode.
- the signals are in accordance with the order of the respective illumination lights.
- a CCD drive circuit 45 for driving the CCDs 13A and 13B is provided.
- the CPU 41 controls the CCD drive circuit 45 so that the CCD is driven according to the selection (switching) of the observation mode.
- the CPU 41 has a CCD drive control function 41a for selecting and controlling the CCD to be driven.
- the CCDs 13A and 13B are different types of CCDs and have a different number of pixels, so when the observation mode is selected by the user, the CPU 41 drives the CCD corresponding to the observation.
- the CCD drive circuit 45 is controlled so as to output a signal. Ma
- the CPU 41 also controls switching of the switching switches 16a and 16b in response to selection of the observation mode.
- an amplification factor control circuit 46 is provided in the processor 4, and during the period in which fluorescence observation is selected and actual fluorescence imaging is performed, together with the CCD drive signal from the CCD drive circuit 45 to the CCD 13B.
- the amplification factor control circuit 46 outputs an amplification factor control signal.
- the CPU 41 sends a control signal to the amplification factor control circuit 46 during the actual fluorescence imaging period (period during which fluorescence imaging is performed by irradiating the excitation light with the E filter 29b).
- An amplification rate control signal set to a standard amplification rate corresponding to the fluorescence observation is output.
- This gain control signal is superimposed on the CCD drive signal and applied to the CCD 13B.
- the signal photoelectrically converted inside the CCD 13B element is multiplied by the gain control signal, and the amplified signal is output from the CCD 13B.
- the user can change the amplification factor by transmitting an instruction signal for setting an arbitrary amplification factor from the keyboard 47 to the CPU 41.
- the amplification factor can be changed by transmitting to the CPU 41 an instruction signal from an operation switch that increases or decreases the operation factor assigned to the plurality of operation switches of the scope switch unit 21.
- the CPU 41 sends the corresponding control signal to the amplification factor control circuit 46 by these instruction signals and sets the designated amplification factor.
- the CCD 13A or CCD 13B outputs a photoelectrically converted imaging signal when a CCD drive signal is applied.
- This imaging signal is input to the video signal preprocessing circuit 51 in the processor 4, and the video signal preprocessing circuit 51 performs CDS processing and the like.
- the output signal of the video signal preprocessing circuit 51 is input to an AZD conversion circuit 52 that converts an analog signal into a digital signal.
- the video signal converted into a digital signal is input to a white balance circuit (abbreviated as WZB balance in Fig. 1) 53 that performs white balance processing.
- the output signal of the white balance circuit 53 is input to an image processing circuit 54 that performs image processing such as structure enhancement and color enhancement.
- the output signal of the image processing circuit 54 is a video signal output circuit 5 that synthesizes and outputs this output signal and video signals corresponding to various images generated by the display controller 56. Input to 5.
- the output signal of the video signal output circuit 55 is input to the DZA conversion circuit 57, converted into an analog video signal, and output to the monitor 5.
- the output signal of the AZD conversion circuit 52 is input to the photometry circuit 58 that measures the brightness on the image and is measured by the photometry circuit 58 in order to automatically control the illumination light quantity.
- the metering modes include peak metering for detecting the peak brightness of the image, average metering for detecting the average brightness, and auto metering for detecting the brightness near the center.
- the photometry circuit 58 or the CPU 41 to which the photometric signal is inputted is compared with a reference value (brightness) to set the photometric signal, and a dimming signal is generated so as to reduce the difference. To do.
- This dimming signal is sent to the CPU 35 in the light source device 3 via the connectors 38 and 37.
- the CPU 35 adjusts the opening amount of the diaphragm 24 via the filter & diaphragm driving circuit 33 and corresponds to the reference value. Adjust the brightness automatically to obtain the appropriate brightness.
- a memory 61 for storing various types of information is provided in the processor 4, and the CPU 41 refers to display information 61a and the like stored in the memory 61 to display information to be displayed on the monitor 5.
- the switching control is performed. That is, the CPU 41 has a display information switching control function of 4 lb. The switching of display information displayed on the monitor 5 will be described later.
- the processor 4 includes a memory 61 for storing various types of information.
- the CPU 41 refers to the information stored in the memory 61 and refers to the front panel (operation panel) provided on the front of the processor 4. ) Controls whether or not it is possible to execute the function assigned to the multiple operation switches 63 of 62 by displaying the lighting of the LED 64 and the display of the Z lighting off.
- the operation switch 63 and the LED 64 are connected to the CPU 41 via a signal line.
- the CPU 41 controls the operation of the image processing circuit 54 in response to the operation of the operation switch 63.
- the CPU 41 controls the white balance circuit 53, the display controller 56, and the like in addition to the image processing circuit 54.
- the memory 22a provided in the electronic endoscope 2 stores information on the type of the electronic endoscope 2 detachably connected to the processor 4.
- the CPU 41 temporarily reads the read information in the memory 61. If the electronic endoscope 2 has multiple CCDs, the CPU 41 has a function of a switching determination unit that determines whether to switch the CCD to be driven according to the selection of the observation mode by the user.
- the CPU 41 controls display information switching so that the display information displayed on the monitor 5 corresponds to the CCD according to the switching. It has become.
- the CPU 41 or the CPU 35 is set to a state in which the illumination light in the normal observation mode is supplied to the endoscope (electronic endoscope or fiberscope), and the signal processing system of the processor 4 is also set. Set to the state corresponding to the normal observation mode.
- the CPU 35 of the light source device 3 and the CPU 41 of the processor 4 read, for example, a program stored in an internal ROM or the like, and perform an initial setting process as shown in step S 1.
- the CPU 41 uses the information stored in the memory 22a provided inside the electronic endoscope 2 connected to the processor 4 in order to determine the type of the electronic endoscope 2 connected to the processor 4. By reading out, the endoscope information is read out.
- step S2 the CPU 41 determines from the information read from the memory 22a that the electronic endoscope 2 is an electronic endoscope having two CCDs 13A and 13B. Control to set the state.
- the CPU 41 controls the switching switches 16a and 16b to drive the CCD 13A and communicates with the CPU 35 of the light source device 3. Under the control of the CPU 35, the illumination light of the light source device 3 is normally observed. The mode illumination light is supplied to the electronic endoscope 2.
- the CPU 41 performs information related to the information related to the electronic endoscope 2, more specifically, the power in a state corresponding to the CCD 13A actually driven by the electronic endoscope 2. Control of display information for displaying information related to the child endoscope 2 on the monitor 5 or switching control of display information is performed.
- treatment information on the inner diameter of the treatment instrument channel 17 of the electronic endoscope 2 connected to the processor 4 and the treatment instrument in the case of the CCD 13A in the operating state (specifically, the CCD 13A in the normal observation mode).
- Treatment information such as treatment tool direction information that appears in the imaging range (field-of-view range) and the current zoom scale by the objective lens system 12A that forms an image on the CCD 13A are displayed.
- FIG. 5A A display example on the monitor 5 in this case is shown in FIG. 5A.
- Fig. 5A there is an endoscopic image display area 5a that displays the endoscopic image captured by the CCD13A near the center of the display surface of the monitor 5 (upper right).
- a patient information display area 5b where patient information is displayed.
- a treatment tool information display area 5c in which the size of the endoscope image display area 5a is reduced is provided in a part of the patient information display area 5b.
- information A and the treatment instrument of the inner diameter of the treatment instrument channel 17 of the electronic endoscope 2 are within the imaging range.
- Treatment tool direction information that appears in B The treatment tool information is displayed under the control of the CPU 41.
- an image is picked up by the currently driven CCD 13A using the objective lens system 12A and displayed in the endoscope image display area 5a.
- a zoom scale 71 representing an approximate scale in the endoscopic image is displayed under the control of the CPU 41.
- This zoom scale 71 is composed of a far-point scale 71a and a near-point scale 71b that indicate how many mm on the screen can be seen when an object of size lmm, for example, is observed at the maximum magnification.
- 71b displays under the control of the CPU 41 based on the information of the optical magnification observation stored in the memory 22a.
- the zoom scale 71 represents how long a predetermined length at the time of maximum enlargement is actually displayed on the screen.
- the zoom scale 71 is the maximum. This is the two forces of the near-point scale 71a (the range is also the foremost side) and the far-point scale 71b (the last side) of the depth (focus range) at the time of large magnification.
- the endoscope image display area 5a Since a scale that can evaluate (measure) the length in the image is displayed on the lower side, the user can grasp the size of the image part such as the affected part by referring to the scale, and can easily perform the diagnosis. .
- the image of the treatment tool information display area 5c and the display image of the zoom scale 71 are generated by the display controller 56 under the control of the CPU 41.
- the video signal of the generated display image is mixed (synthesized) with the video signal of the endoscopic image captured by the CCD 13A in the video signal output circuit 55, and the synthesized image is displayed on the monitor 5 as shown in FIG. 5A. Is displayed.
- the display surface of the monitor 5 corresponds to information related to the electronic endoscope 2 actually connected to the processor 4, more specifically, to the CCD 13A actually used (electronic internal Information related to scope 2 is displayed.
- the CPU 41 determines whether or not there is an instruction to switch to the fluorescence observation mode in the special light observation mode, in other words, whether there is an instruction to switch to the second CCD 13B. Then, the CPU 41 maintains the display state until this switching instruction is issued. However, when a zoom change instruction operation is performed, the zoom scale 71 corresponding to the zoom change is displayed.
- the surgeon performs an operation of selecting the fluorescence observation mode by using, for example, the observation mode selection switch 21a when observing the affected part and the like and further observing the lesion part in the fluorescence observation mode.
- step S5 When an operation for switching to the fluorescence observation mode is performed, as shown in step S5, the CPU 41 and the like perform a switching process so as to perform illumination corresponding to the fluorescence observation mode. Specifically, the CPU 41 receives an instruction 3 ⁇ 4 that causes the CPU 35 of the light source device 3 to switch to the fluorescence observation mode.
- the light source device 3 is in a state of supplying illumination light corresponding to the fluorescence observation mode to the electronic endoscope 2. Further, the CPU 41 switches the switching switches 16a and 16b and controls the CCD drive signal output from the CCD drive circuit 45 so as to drive the CCD 13B, and controls the amplification factor control circuit 46.
- the gain control circuit 46 In the period for performing fluorescence imaging (that is, the period for performing fluorescence imaging by irradiating the excitation light that has passed through the E filter 29b in FIG. 3A), the gain control circuit 46 outputs the CCD drive signal. The gain control signal is superimposed and applied to the CCD 13B. As a result, the signal level of the fluorescence imaging signal obtained by fluorescence imaging is close to the signal level obtained by imaging with other reflected light.
- the CPU 41 displays information on the electronic endoscope 2 corresponding to the CCD 13B that is switched and actually driven on the monitor 5 in conjunction with the switching of the CCD that is driven from the CCD 13A to the CCD 13B.
- Display control processing is performed (in terms of the relationship between before and after switching, switching control of displayed information is performed).
- the CPU 41 displays the treatment tool information such as the treatment tool direction information in which the treatment tool appears in the imaging range in the case of this CCD 13B, and the current zoom scale and the like in the case of using this CCD 13B on the monitor 5. Perform display processing.
- the display content of the information related to the electronic endoscope 2 corresponding to the case of the CCD 13B actually used for imaging is changed.
- the display contents are switched corresponding to the switching from CCD13A to CCD13B in the case of FIG. 5A.
- the treatment tool information and the current zoom scale 71 by the objective lens system 12B and the CCD 13B are displayed on the monitor 5.
- the information A on the inner diameter of the treatment instrument channel 17 of the electronic endoscope 2 is the same as that in Fig. 5A, but the treatment instrument direction information B in which the treatment instrument appears in the imaging range is different from that in Fig. 5A.
- the display is compatible with CCD13B. That is, in FIG. 5A, the treatment instrument direction information B is a force in which the treatment instrument is directed from the upper right side to the center. In FIG. 5B, the treatment instrument direction information B is obtained from the lower right side of the treatment tool. The direction is suitable for.
- the zoom scale 71 displayed immediately below the endoscopic image is changed to a value by the objective lens system 12B that connects the image to the CCD 13B that is currently used for imaging. In the example of FIG. 5B, it is smaller than the objective lens system 12A!
- step S6 after step S5, the CPU 41 waits for switching to the normal observation mode (CCD13A). When switching to the normal observation mode is performed, the process returns to step S2.
- the mouth set 4 is connected to the electronic endoscope 2 stored in the memory 22 a built in the electronic endoscope 2.
- Information about mirror 2 is read out and displayed on monitor 5 using that information.
- unique identification information of the electronic endoscope 2 may be stored in the memory 22a, and information related to the electronic endoscope 2 corresponding to the identification information may be stored on the processor 4 side.
- the CCD 13B can be applied to a CCD having a different number of pixels from the force CCD 13A described in the case of a CCD having a signal amplification function inside the CCD element.
- the CCD 13A may have a signal amplification function inside a CCD element such as the CCD 13B.
- a CCD drive circuit that generates a drive signal for driving the CCD having the larger number of pixels may be employed.
- the information related to the electronic endoscope output to the display means can be made to correspond to the switched solid-state imaging device, and the operability is improved. improves.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002602242A CA2602242A1 (en) | 2005-03-29 | 2006-02-21 | Signal processing apparatus for electronic endoscope and electronic endoscope apparatus |
US11/887,315 US20090027489A1 (en) | 2005-03-29 | 2006-02-21 | Signal Processing Apparatus for Electronic Endoscope and Electronic Endoscope Apparatus |
AU2006229031A AU2006229031A1 (en) | 2005-03-29 | 2006-02-21 | Signal processing device for electronic endoscope, and electronic endoscope device |
EP06714214A EP1864605A1 (en) | 2005-03-29 | 2006-02-21 | Signal processing device for electronic endoscope, and electronic endoscope device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005-095716 | 2005-03-29 | ||
JP2005095716A JP4989036B2 (ja) | 2005-03-29 | 2005-03-29 | 電子内視鏡用信号処理装置及び電子内視鏡装置 |
Publications (1)
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WO2006103846A1 true WO2006103846A1 (ja) | 2006-10-05 |
Family
ID=37053115
Family Applications (1)
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PCT/JP2006/303074 WO2006103846A1 (ja) | 2005-03-29 | 2006-02-21 | 電子内視鏡用信号処理装置及び電子内視鏡装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090027489A1 (ja) |
EP (1) | EP1864605A1 (ja) |
JP (1) | JP4989036B2 (ja) |
KR (1) | KR20070110893A (ja) |
CN (1) | CN101141913A (ja) |
AU (1) | AU2006229031A1 (ja) |
CA (1) | CA2602242A1 (ja) |
WO (1) | WO2006103846A1 (ja) |
Cited By (1)
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WO2021090358A1 (ja) * | 2019-11-05 | 2021-05-14 | オリンパス株式会社 | 内視鏡装置、表示用画像出力方法、及びプログラム |
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US8980453B2 (en) | 2008-04-30 | 2015-03-17 | Medtronic, Inc. | Formation process for lithium-ion batteries |
JP4847250B2 (ja) * | 2006-08-03 | 2011-12-28 | オリンパスメディカルシステムズ株式会社 | 内視鏡装置 |
JP5114170B2 (ja) * | 2007-11-22 | 2013-01-09 | オリンパスメディカルシステムズ株式会社 | 内視鏡システム |
US20130158349A1 (en) * | 2011-07-08 | 2013-06-20 | Fujifilm Corporation | Insertion and extraction assisting device and endoscope system |
JP6021369B2 (ja) * | 2012-03-21 | 2016-11-09 | Hoya株式会社 | 内視鏡システム |
CN105007798A (zh) * | 2013-02-13 | 2015-10-28 | 奥林巴斯株式会社 | 荧光观察装置 |
US10869592B2 (en) | 2015-02-23 | 2020-12-22 | Uroviu Corp. | Handheld surgical endoscope |
US11832797B2 (en) | 2016-09-25 | 2023-12-05 | Micronvision Corp. | Endoscopic fluorescence imaging |
US11684248B2 (en) | 2017-09-25 | 2023-06-27 | Micronvision Corp. | Endoscopy/stereo colposcopy medical instrument |
US11330973B2 (en) * | 2017-09-25 | 2022-05-17 | Micronvision Corp | Portable and ergonomic endoscope with disposable cannula |
US11771304B1 (en) | 2020-11-12 | 2023-10-03 | Micronvision Corp. | Minimally invasive endoscope |
EP4003138A4 (en) | 2019-07-25 | 2023-08-30 | Uroviu Corp. | DISPOSABLE ENDOSCOPY CANNULA WITH INTEGRATED FORCEPS |
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- 2006-02-21 KR KR1020077022148A patent/KR20070110893A/ko not_active Application Discontinuation
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- 2006-02-21 CN CNA2006800088637A patent/CN101141913A/zh active Pending
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Also Published As
Publication number | Publication date |
---|---|
CN101141913A (zh) | 2008-03-12 |
JP4989036B2 (ja) | 2012-08-01 |
KR20070110893A (ko) | 2007-11-20 |
JP2006271709A (ja) | 2006-10-12 |
EP1864605A1 (en) | 2007-12-12 |
CA2602242A1 (en) | 2006-10-05 |
AU2006229031A1 (en) | 2006-10-05 |
US20090027489A1 (en) | 2009-01-29 |
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