WO2022195940A1 - 医療用観察システム - Google Patents
医療用観察システム Download PDFInfo
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- WO2022195940A1 WO2022195940A1 PCT/JP2021/038833 JP2021038833W WO2022195940A1 WO 2022195940 A1 WO2022195940 A1 WO 2022195940A1 JP 2021038833 W JP2021038833 W JP 2021038833W WO 2022195940 A1 WO2022195940 A1 WO 2022195940A1
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- 238000003384 imaging method Methods 0.000 claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims description 20
- 230000035945 sensitivity Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 12
- 230000002452 interceptive effect Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000005284 excitation Effects 0.000 description 4
- 238000007428 craniotomy Methods 0.000 description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 3
- 238000002350 laparotomy Methods 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- MOFVSTNWEDAEEK-UHFFFAOYSA-M indocyanine green Chemical compound [Na+].[O-]S(=O)(=O)CCCCN1C2=CC=C3C=CC=CC3=C2C(C)(C)C1=CC=CC=CC=CC1=[N+](CCCCS([O-])(=O)=O)C2=CC=C(C=CC=C3)C3=C2C1(C)C MOFVSTNWEDAEEK-UHFFFAOYSA-M 0.000 description 2
- 229960004657 indocyanine green Drugs 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
Definitions
- This disclosure relates to a medical observation system.
- Patent Literature 1 describes an endoscope capable of performing normal observation and infrared observation at the same time by irradiating an object alternately with white light and infrared light in chronological order.
- endoscopes and microscopes used in laparotomy and craniotomy alternately switch between white light and infrared light in a time series.
- the operator perceives the switching of the light, which may hinder the operator's work.
- the present disclosure has been made in view of the above, and an object of the present disclosure is to provide a medical observation system capable of performing normal observation and infrared observation at the same time without interfering with the operator's work. .
- a medical observation system includes a white light source that emits white light, an infrared light source that emits infrared light, and the white light source. and a second mode in which the infrared light source is irradiated with the infrared light and the white light source is irradiated with light having a wavelength included in a wavelength band from green to blue. It includes a light source control unit that alternately repeats control along a time series, and an imaging unit that captures an image of a subject.
- the medical observation system includes an image superimposition processing unit that superimposes the infrared light image captured in the second mode on the white light image captured in the first mode.
- the light source control unit adjusts the amount of light emitted by the white light source in the second mode to the white light emitted by the white light source in the first mode. Make it larger than the amount of light.
- the imaging unit is an endoscope that images the subject from outside the body.
- the imaging unit includes a color filter including a filter that transmits red light, a filter that transmits green light, and a filter that transmits blue light; a sensor for receiving light transmitted through the color filter.
- the imaging unit includes a spectroscope that reflects light from the subject in different directions for each wavelength, and a sensitivity that corresponds to the wavelength split by the spectroscope. and a plurality of sensors.
- the imaging unit includes a spectroscopic unit that branches light from the subject into a plurality of paths, and the spectroscopic unit is arranged on the plurality of branched paths. and a plurality of sensors.
- the white light source includes an R light source that emits red light, a G light source that emits green light, and a B light source that emits blue light.
- the light source control unit causes the R light source, the G light source, and the B light source to irradiate the white light obtained by superimposing RGB light in the first mode, and the infrared light source in the second mode.
- the G light source is radiated with the green light, or the G light source and the B light source are radiated with light obtained by superimposing the green light and the blue light.
- the light source control unit inserts a filter that removes red light into an optical path of the light emitted from the white light source in the second mode, and the In the first mode, the filter is removed from the optical path of the light emitted by the white light source.
- the filter is plate-shaped, and the light source control unit translates the filter so that the light emitted from the white light source is placed on the optical path. Insert and remove.
- the filter is a disk-shaped filter in which filter portions and gap portions are alternately arranged along a circumferential direction
- the light source control portion includes: By rotating the filter, it is inserted or removed from the optical path of the light emitted from the white light source.
- the medical observation system includes a control section that controls the shutter speed of the imaging section.
- FIG. 1 is a schematic diagram showing the configuration of an endoscope observation system according to an embodiment.
- FIG. 2 is a diagram showing changes over time in the light that the endoscope observation system shown in FIG. 1 irradiates onto a subject.
- FIG. 3 is a diagram showing temporal changes in the amount of light of G light or G light and B light.
- FIG. 4 is a schematic diagram showing the configuration of an endoscope observation system according to a modification.
- FIG. 5 is a diagram showing changes over time in the light that the endoscope observation system shown in FIG. 4 irradiates onto a subject.
- FIG. 6 is a diagram showing an example of wavelength bands removed by a filter.
- FIG. 1 is a schematic diagram showing the configuration of an endoscope observation system according to an embodiment.
- the endoscope observation system 1 is used to assist the operator in observing the subject H when performing an open surgery such as a laparotomy, a thoracotomy, or a craniotomy on the subject H.
- the medical observation system used which can perform normal observation and infrared observation at the same time.
- the medical observation system is, for example, an endoscope observation system including an endoscope, but may be an observation system (surgical microscope system) including a microscope such as a surgical microscope or an optical microscope.
- the endoscope observation system 1 includes a processor 10 , an endoscope camera 20 , a light source device 30 and a display section 40 .
- the processor 10 has a clock generator 11 , a synchronization signal generator 12 , a light source controller 13 , an image superimposition processor 14 , a controller 15 and a memory 16 .
- the clock generation unit 11 generates a clock signal, which is a driving timing signal for driving the endoscope observation system 1 , and outputs it to the imaging unit 22 .
- the synchronization signal generation unit 12 generates a synchronization signal, which is a driving timing signal for driving the endoscope observation system 1 , and outputs it to the imaging unit 22 and the light source control unit 13 .
- the synchronization signal is a first mode for causing the white light source to emit white light, and a second mode for causing the infrared light source to emit infrared light and also causing the white light source to emit light having a wavelength included in the wavelength band from green to blue. This is a signal that controls the timing of switching between and.
- the light source control unit 13 controls the light source device 30 at timing according to the synchronization signal.
- the light source control unit 13 operates in a first mode in which the white light source emits white light, and in a third mode in which the infrared light source emits infrared light and emits light having a wavelength included in the green to blue wavelength band from the white light source. 2 modes are alternately repeated in time series.
- FIG. 2 is a diagram showing changes over time in the light that the endoscope observation system shown in FIG. 1 irradiates onto a subject.
- the light source control unit 13 provides white light, which is a superposition of RGB light, infrared light and G light, or G light and B light, with a cycle of 1/120 s, for example, to the surgical field. irradiate alternately.
- the light source control unit 13 causes the R light source, the G light source, and the B light source of the white light source to irradiate white light obtained by superimposing RGB light in the first mode, and irradiates the infrared light source with red light in the second mode.
- the G light source While irradiating external light, the G light source is made to irradiate the G light, or the G light source and the B light source are made to irradiate the G light and the B light, respectively.
- the white light source alternately switches the wavelength band of the light to be emitted in the first mode and the second mode, but the light is emitted continuously.
- the period of irradiation is not limited to 1/120 s, and may be any period in which white light, infrared light and G light, or G light and B light can be alternately irradiated in time series.
- FIG. 3 is a diagram showing temporal changes in the amount of G light or G light and B light.
- the light source control unit 13 may make the amount of light emitted by the white light source in the second mode larger than the amount of white light emitted by the white light source in the first mode.
- the white light source does not irradiate the R light, the overall amount of light is smaller than in the first mode. Therefore, in the second mode, the light intensity of the B light or the B light and the G light is made larger than in the first mode to reduce the overall difference in light intensity between the first mode and the second mode. It may be difficult to perceive the switching of .
- the image superimposition processing unit 14 superimposes the infrared light image captured in the second mode on the white light image captured in the first mode.
- the image superimposition processing unit 14 adds a color such as green to the infrared light image, which is a monochrome image, and superimposes it on the white light image.
- a color such as green
- ICG Indocyanine Green
- fluorescence emitted by excitation with infrared light is imaged, and the imaged image is superimposed on a white light image. This makes it easier for the operator to visually recognize blood vessels and the like.
- the control unit 15 centrally controls the operation of the endoscope observation system 1 as a whole. Also, the control unit 15 controls the shutter speed of the imaging unit 22 .
- the clock generation unit 11, the synchronization signal generation unit 12, the light source control unit 13, the image superimposition processing unit 14, and the control unit 15 are a general-purpose processor such as a CPU (Central Processing Unit) having an internal memory in which a program is recorded, or an ASIC (Application It is realized using dedicated processors such as various arithmetic circuits that perform specific functions such as Specific Integrated Circuit. Alternatively, it may be configured using an FPGA (Field Programmable Gate Array), which is a type of programmable integrated circuit. In the case of an FPGA, a memory for storing configuration data may be provided, and the FPGA, which is a programmable integrated circuit, may be configured by the configuration data read from the memory.
- a general-purpose processor such as a CPU (Central Processing Unit) having an internal memory in which a program is recorded
- ASIC Application It is realized using dedicated processors such as various arithmetic circuits that perform specific functions such as Specific Integrated Circuit. Alternatively, it may be configured using an FPGA (Field Programmable
- the storage unit 16 is configured using semiconductor memory such as flash memory and DRAM (Dynamic Random Access Memory), and temporarily stores various programs executed by the endoscope observation system 1 and data being processed.
- semiconductor memory such as flash memory and DRAM (Dynamic Random Access Memory)
- the endoscope camera 20 has a lens 21 and an imaging section 22 .
- the lens 21 collects light from the subject H.
- the subject H is the operative field.
- the imaging unit 22 takes an image of the subject H from outside the body and generates an image.
- the imaging unit 22 includes a color filter having a filter that transmits red light, a filter that transmits green light, and a filter that transmits blue light, and a sensor that receives light that has passed through the color filters.
- the color filters may be color filters in which filters corresponding to respective colors are arranged in a predetermined pattern in a two-dimensional matrix.
- the predetermined pattern may be, for example, a Bayer array, but is not particularly limited.
- the sensor (imaging element) is configured using a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor).
- the senor has a resolution of, for example, 4K (3840 horizontal pixels x 2160 vertical pixels), 8K (7680 horizontal pixels x 4320 vertical pixels), or square 4K (3840 or more horizontal pixels x 3840 or more vertical pixels).
- An imaging device having a corresponding number of pixels is preferable.
- the imaging unit 22 may be provided with an excitation light cut filter between the lens and the color filter of the sensor.
- a filter that cuts excitation light, which is infrared light, and transmits fluorescent light, which is infrared light with a wavelength different from that of the excitation light is provided in front of a sensor that receives red light.
- a filter that cuts excitation light, which is infrared light, and transmits fluorescent light, which is infrared light with a wavelength different from that of the excitation light is provided in front of a sensor that receives red light.
- a prism may be provided to separate the incident light into predetermined wavelength bands, and each wavelength band may be imaged by a different light-receiving element.
- each wavelength band may be imaged by a different light-receiving element.
- one can be used for receiving RGB light (visible light) and the other can be used for receiving infrared light.
- RGB light visible light
- three-plate structure having three sensor chips one is used for receiving R light, one is used for receiving G and B lights, and one is used for receiving infrared light. can do.
- a short-pass filter, a long-pass filter, or a band-pass filter that matches the wavelength of light received by each sensor is used to allow the sensor to receive light in a desired wavelength band. can be done.
- a plurality of light receiving elements may be provided for stereoscopic viewing.
- the light source device 30 has a power supply section 31, a white light source 32, an infrared light source 33, a switch section 34, a multiplexer 35, and a light source diaphragm .
- the power supply unit 31 supplies power to the white light source 32 and the infrared light source 33 under the control of the light source control unit 13 .
- the white light source 32 irradiates the subject with white light.
- the white light source 32 has an R light source 32a that emits red light, a G light source 32b that emits green light, and a B light source 32c that emits blue light.
- the R light sources 32a to B light sources 32c are configured using solid light emitting elements such as LEDs (Light Emitting Diodes) and LDs (Laser Diodes), or light emitting members such as laser light sources.
- the infrared light source 33 irradiates the subject with infrared light.
- the infrared light source 33 is configured using a solid light emitting element such as an LED or LD, or a light emitting member such as a laser light source.
- the switch section 34 has switches 34a to 34d connected to the R light sources 32a to B light sources 32c and the infrared light source 33, respectively. It switches whether or not to supply power to the external light source 33 .
- the multiplexer 35 multiplexes the light emitted from the R light source 32 a to B light source 32 c and the infrared light source 33 .
- the light source diaphragm 36 adjusts the amount of light output to the endoscope camera 20.
- the display unit 40 displays images and the like captured by the endoscope camera 20 .
- the display unit 40 includes a CRT (Cathode Ray Tube) display, a liquid crystal display, or an organic EL (Electro Luminescence) display panel.
- an output device that outputs information using a speaker, a printer, or the like may be provided.
- the light source device 30 irradiates B light or B light and G light even when performing infrared observation (second mode). Since the change in the color of the light irradiated to the subject H is reduced during external observation (second mode), normal observation and infrared observation can be performed at the same time without interfering with the work of the operator. can.
- the white light source illuminates the subject H during normal observation (first mode) and during infrared observation (second mode). and the change in color of light is reduced, normal observation and infrared observation can be performed at the same time without interfering with the work of the operator.
- control section 15 may adjust the exposure by controlling the shutter speed of the imaging section 22 .
- an imaging unit is arranged in the eyepiece, and an image captured by this imaging unit is displayed on a display unit for observation by medical personnel such as doctors. do.
- the change in the color of the light irradiated to the subject H during normal observation (first mode) and during infrared observation (second mode) is reduced. Normal observation and infrared observation can be performed at the same time without interfering with the operator's work.
- FIG. 4 is a schematic diagram showing the configuration of an endoscope observation system according to a modification.
- the processor 10A includes a light source filter control section 13A
- the light source device 30A includes a white light source 32A, a switch section 34A, and a filter 37A. Since other configurations may be the same as those of the embodiment, the same reference numerals as those of the embodiment are given, and description thereof is omitted.
- the light source filter control unit 13A controls the light source device 30A at timing according to the synchronization signal.
- the light source filter control unit 13A operates in a first mode in which the white light source irradiates white light, and in which the infrared light source irradiates infrared light and also causes the white light source to irradiate light having a wavelength included in a wavelength band from green to blue. Control is performed to alternately repeat the second mode along the time series. Further, the light source filter control section 13A controls the filter 37A.
- the light source filter control unit 13A inserts the filter 37A in the optical path of the light emitted from the white light source 32A during infrared observation (second mode), and the light emitted from the white light source 32A during normal observation (first mode).
- the filter 37A is removed from the optical path of .
- FIG. 5 is a diagram showing temporal changes in the light that the endoscope observation system shown in FIG. 4 irradiates onto the subject.
- the light source filter control unit 13A superimposes white light, which is a superimposition of RGB light, with a period of 1/120 s, for example, and light with wavelengths from green to blue that has passed through infrared light and a filter. alternately irradiate the At this time, the white light source alternately switches the wavelength band of the light to be emitted in the first mode and the second mode, but the light is emitted continuously. That is, the green to blue wavelength light that has passed through the filter is the light that is generated by passing white light through the filter.
- the white light source 32A irradiates the subject with white light.
- the white light source 32A may use a white light source having a continuous spectrum in the wavelength band of visible light, such as a halogen lamp.
- the switch section 34A has switches 34Aa and 34d connected to the white light source 32A and the infrared light source 33, respectively, and supplies power to the white light source 32A and the infrared light source 33 under the control of the light source filter control section 13A. Toggle on or off.
- FIG. 6 is a diagram showing an example of wavelength bands removed by a filter.
- a line L1 shown in FIG. 6 is the white light emitted by the white light source 32A, and a line L2 is the infrared light emitted by the infrared light source 33.
- Filter 37A removes the R light component of white light (for example, wavelengths of 600 nm to 700 nm). Note that the filter 37A may be placed anywhere up to just before the imaging unit 22 as long as it is on the optical path of the white light emitted by the white light source 32A.
- the light source filter control unit 13A may move the filter 37A in parallel to insert/remove it onto the optical path of the light emitted from the white light source 32A. Further, when the filter 37A is a disk-shaped filter in which the filter portions and the gap portions are alternately arranged along the circumferential direction, the light source filter control section 13A rotates the filter 37A to rotate the white light source 32A. may be inserted/removed onto the optical path of the emitted light.
- the light source device 30A irradiates the light of the B light to G light components even when performing infrared observation (second mode). Since the change in the color of the light irradiated to the subject H is reduced during external observation (second mode), normal observation and infrared observation can be performed at the same time without interfering with the work of the operator. can.
- the light source filter control unit 13A may make the amount of light emitted by the white light source during infrared observation larger than the amount of light emitted by the white light source during normal observation.
- part of the white light source is removed by filter 37A, so that the overall amount of light is smaller than in normal observation. Therefore, in infrared observation, the light intensity of the light components of B light to G light is made larger than in normal observation, and the overall light intensity during normal observation (first mode) and infrared observation (second mode) is to make it difficult for the operator to perceive the switching of light.
- the imaging unit 22 may have a spectroscopic unit that branches the light from the subject H into a plurality of paths, and a plurality of sensors that are arranged on the plurality of paths branched from the spectroscopic unit. .
- the imaging unit 22 has a spectroscope that reflects light from the subject H in different directions for each wavelength, and a plurality of sensors that have sensitivities corresponding to the wavelengths split by the spectroscope.
- a color filter may be arranged between the spectroscopic section and the sensor.
- the processor 10 described in this specification may be configured as a system by implementing part or all of each component as separate devices.
- the processor 10 may comprise a light source and the controller may be a system implemented by an external device.
- a series of processes by each device described in this specification may be realized using any of software, hardware, or a combination of software and hardware.
- Programs constituting software are stored in advance in a recording medium (non-transitory media) provided inside or outside each device, for example.
- a recording medium non-transitory media
- Each program for example, is read into a RAM when executed by a computer, and executed by a processor such as a CPU.
- a white light source that emits white light
- an infrared light source that emits infrared light
- a second mode in which the infrared light source irradiates the infrared light and the white light source irradiates light of a wavelength included in a wavelength band from green to blue.
- a medical observation system comprising: (2) The medical observation system according to (1), further comprising an image superimposition processing unit that superimposes an infrared light image captured in the second mode on a white light image captured in the first mode. (3) (1) or (2), wherein the light source control unit makes the amount of light emitted by the white light source in the second mode larger than the amount of white light emitted by the white light source in the first mode.
- the medical observation system according to . (4)
- the imaging unit is An endoscope for imaging the subject from outside the body, The medical observation system according to any one of (1) to (3) above.
- the imaging unit is a color filter having a filter that transmits red light, a filter that transmits green light, and a filter that transmits blue light; a sensor that receives light transmitted through the color filter;
- the medical observation system according to any one of (1) to (4) above.
- the imaging unit is a spectroscopic unit that splits the light from the subject into a plurality of paths; a plurality of sensors arranged on a plurality of paths branched from the spectroscopic unit; The medical observation system according to any one of (1) to (6) above.
- the white light source has an R light source that emits red light, a G light source that emits green light, and a B light source that emits blue light,
- the light source control unit causes the R light source, the G light source, and the B light source to emit the white light obtained by superimposing RGB light in the first mode, and causes the infrared light source to emit the white light in the second mode.
- the light source control unit inserts a filter for removing red light into the optical path of the light emitted from the white light source, and in the first mode, inserts a filter for removing red light into the optical path of the light emitted from the white light source.
- the medical observation system according to any one of (1) to (8), wherein the filter is removed from the (10)
- the filter is plate-shaped
- the filter is a disk-shaped filter in which filter portions and gap portions are alternately arranged along the circumferential direction
- the medical observation system according to (9) or (10) wherein the light source controller rotates the filter to insert/remove it onto the optical path of the light emitted from the white light source.
- (12) The medical observation system according to any one of (1) to (11) above, comprising a control section that controls the shutter speed of the imaging section.
- Reference Signs List 1 1A endoscope observation system 10, 10A processor 11 clock generation unit 12 synchronization signal generation unit 13 light source control unit 13A light source filter control unit 14 image superimposition processing unit 15 control unit 16 storage unit 20 endoscope camera 21 lens 22 imaging Sections 30, 30A Light source device 31 Power supply section 32, 32A White light source 32a R light source 32b G light source 32c B light source 33 Infrared light source 34, 34A Switch section 34a to 34d, 34Aa Switch 35 Multiplexer 36 Light source diaphragm 37A Filter H Subject 40 display
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Abstract
Description
図1は、実施の形態に係る外視鏡観察システムの構成を示す模式図である。外視鏡観察システム1は、被写体Hに対して、開腹手術、開胸手術、開頭手術等のオープン式の手術等を行う際に、手術を行う術者の被写体Hの観察を補助するために用いられる医療用観察システムであって、通常観察と赤外観察とを同時に行うことができる。なお、医療用観察システムとは、例えば外視鏡を含む外視鏡観察システムであるが、手術用顕微鏡や光学顕微鏡等の顕微鏡を含む観察システム(手術用顕微鏡システム)であってもよい。外視鏡観察システム1は、プロセッサ10と、外視鏡カメラ20と、光源装置30と、表示部40と、を備える。
次に、変形例に係る外視鏡観察システム1Aについて説明する。図4は、変形例に係る外視鏡観察システムの構成を示す模式図である。外視鏡観察システム1Aおいて、プロセッサ10Aは、光源フィルタ制御部13Aを備え、光源装置30Aは、白色光源32Aと、スイッチ部34Aと、フィルタ37Aと、を備える。それ以外の構成については、実施の形態と同様の構成であってよいので、実施の形態と同一の符号を付し、説明を省略する。
(1)
白色光を照射する白色光源と、
赤外光を照射する赤外光源と、
前記白色光源に前記白色光を照射させる第1モードと、前記赤外光源に前記赤外光を照射させるとともに、前記白色光源に緑色から青色の波長帯域に含まれる波長の光を照射させる第2モードとを時系列に沿って交互に繰り返す制御を行う光源制御部と、
被写体を撮像する撮像部と、
を備える医療用観察システム。
(2)
前記第1モードにおいて撮像した白色光画像に、前記第2モードにおいて撮像した赤外光画像を重畳する画像重畳処理部を備える前記(1)に記載の医療用観察システム。
(3)
前記光源制御部は、前記第2モードにおいて前記白色光源が照射する光の光量を、前記第1モードにおいて前記白色光源が照射する前記白色光の光量よりも大きくする前記(1)又は(2)に記載の医療用観察システム。
(4)
前記撮像部は、
前記被写体を体外から撮像する外視鏡である、
前記(1)~(3)のいずれか一項に記載の医療用観察システム。
(5)
前記撮像部は、
赤色光を透過するフィルタと、緑色光を透過するフィルタと、青色光を透過するフィルタとを有するカラーフィルタと、
前記カラーフィルタを透過した光を受光するセンサと、
を有する前記(1)~(4)のいずれか一項に記載の医療用観察システム。
(6)
前記撮像部は、前記被写体からの光を波長ごとに異なる方向に反射する分光器と、前記分光器が分岐した波長に対応する感度を有する複数のセンサと、を有する前記(5)に記載の医療用観察システム。
(7)
前記撮像部は、
前記被写体からの光を複数の経路に分岐する分光部と、
前記分光部が分岐した複数の経路上に配置されている複数のセンサと、
有する前記(1)~(6)のいずれか一項に記載の医療用観察システム。
(8)
前記白色光源は、赤色の光を照射するR光源、緑色の光を照射するG光源、及び青色の光を照射するB光源を有し、
前記光源制御部は、前記第1モードにおいて、前記R光源、前記G光源、及び前記B光源にRGB光を重ね合わせた前記白色光を照射させ、前記第2モードにおいて、前記赤外光源に前記赤外光を照射させるとともに、前記G光源に前記緑色の光を照射させる又は前記G光源及び前記B光源に前記緑色の光及び前記青色の光をそれぞれ照射させる前記(1)~(7)のいずれか一項に記載の医療用観察システム。
(9)
前記光源制御部は、前記第2モードにおいて、前記白色光源が出射した光の光路上に赤色の光を除去するフィルタを挿入し、前記第1モードにおいて、前記白色光源が出射した光の光路上から前記フィルタを抜去する前記(1)~(8)のいずれか一項に記載の医療用観察システム。
(10)
前記フィルタは、板状であり、
前記光源制御部は、前記フィルタを平行移動させることにより、前記白色光源が出射した光の光路上に挿抜する前記(9)に記載の医療用観察システム。
(11)
前記フィルタは、フィルタ部と間隙部とが円周方向に沿って交互に配置された円盤状のフィルタであり、
前記光源制御部は、前記フィルタを回転させることにより、前記白色光源が出射した光の光路上に挿抜する前記(9)又は(10)に記載の医療用観察システム。
(12)
前記撮像部のシャッタースピードを制御する制御部を備える前記(1)~(11)のいずれか一項に記載の医療用観察システム。
10、10A プロセッサ
11 クロック生成部
12 同期信号生成部
13 光源制御部
13A 光源フィルタ制御部
14 画像重畳処理部
15 制御部
16 記憶部
20 外視鏡カメラ
21 レンズ
22 撮像部
30、30A 光源装置
31 電源部
32、32A 白色光源
32a R光源
32b G光源
32c B光源
33 赤外光源
34、34A スイッチ部
34a~34d、34Aa スイッチ
35 合波器
36 光源絞り
37A フィルタ
H 被写体
40 表示部
Claims (12)
- 白色光を照射する白色光源と、
赤外光を照射する赤外光源と、
前記白色光源に前記白色光を照射させる第1モードと、前記赤外光源に前記赤外光を照射させるとともに、前記白色光源に緑色から青色の波長帯域に含まれる波長の光を照射させる第2モードとを時系列に沿って交互に繰り返す制御を行う光源制御部と、
被写体を撮像する撮像部と、
を備える医療用観察システム。 - 前記第1モードにおいて撮像した白色光画像に、前記第2モードにおいて撮像した赤外光画像を重畳する画像重畳処理部を備える請求項1に記載の医療用観察システム。
- 前記光源制御部は、前記第2モードにおいて前記白色光源が照射する光の光量を、前記第1モードにおいて前記白色光源が照射する前記白色光の光量よりも大きくする請求項1に記載の医療用観察システム。
- 前記撮像部は、
前記被写体を体外から撮像する外視鏡である、
請求項1に記載の医療用観察システム。 - 前記撮像部は、
赤色光を透過するフィルタと、緑色光を透過するフィルタと、青色光を透過するフィルタとを有するカラーフィルタと、
前記カラーフィルタを透過した光を受光するセンサと、
を有する請求項1に記載の医療用観察システム。 - 前記撮像部は、前記被写体からの光を波長ごとに異なる方向に反射する分光器と、前記分光器が分岐した波長に対応する感度を有する複数のセンサと、を有する請求項5に記載の医療用観察システム。
- 前記撮像部は、
前記被写体からの光を複数の経路に分岐する分光部と、
前記分光部が分岐した複数の経路上に配置されている複数のセンサと、
有する請求項1に記載の医療用観察システム。 - 前記白色光源は、赤色の光を照射するR光源、緑色の光を照射するG光源、及び青色の光を照射するB光源を有し、
前記光源制御部は、前記第1モードにおいて、前記R光源、前記G光源、及び前記B光源にRGB光を重ね合わせた前記白色光を照射させ、前記第2モードにおいて、前記赤外光源に前記赤外光を照射させるとともに、前記G光源に前記緑色の光を照射させる又は前記G光源及び前記B光源に前記緑色の光及び前記青色の光をそれぞれ照射させる請求項1に記載の医療用観察システム。 - 前記光源制御部は、前記第2モードにおいて、前記白色光源が出射した光の光路上に赤色の光を除去するフィルタを挿入し、前記第1モードにおいて、前記白色光源が出射した光の光路上から前記フィルタを抜去する請求項1に記載の医療用観察システム。
- 前記フィルタは、板状であり、
前記光源制御部は、前記フィルタを平行移動させることにより、前記白色光源が出射した光の光路上に挿抜する請求項9に記載の医療用観察システム。 - 前記フィルタは、フィルタ部と間隙部とが円周方向に沿って交互に配置された円盤状のフィルタであり、
前記光源制御部は、前記フィルタを回転させることにより、前記白色光源が出射した光の光路上に挿抜する請求項9に記載の医療用観察システム。 - 前記撮像部のシャッタースピードを制御する制御部を備える請求項1に記載の医療用観察システム。
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JP2016518197A (ja) * | 2013-04-23 | 2016-06-23 | シーダーズ−サイナイ メディカル センター | 蛍光体由来の可視光画像及び赤外光画像を同時に記録するためのシステム及び方法 |
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WO2019176253A1 (ja) * | 2018-03-15 | 2019-09-19 | ソニー・オリンパスメディカルソリューションズ株式会社 | 医療用観察システム |
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JP2016518197A (ja) * | 2013-04-23 | 2016-06-23 | シーダーズ−サイナイ メディカル センター | 蛍光体由来の可視光画像及び赤外光画像を同時に記録するためのシステム及び方法 |
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