JP6957192B2 - Endoscope mount device and endoscope system - Google Patents

Description

The present invention relates to an endoscope pedestal device for holding an operation unit of an endoscope on a hanger, and an endoscope system.

Conventionally, endoscopic systems have been widely used in the medical and industrial fields. The endoscope system displays an endoscope, a video processor to which the endoscope is connected, a light source device that supplies illumination light to the endoscope, and an endoscope image processed by the video processor. It is configured to include a monitor. With such a configuration, the endoscopic image in the test body captured by the endoscope is displayed on the monitor, and the operator or the like can perform an examination, treatment, or the like in the test body.

In this type of endoscopic system, automatic dimming is performed to display the endoscopic image displayed on the monitor with an appropriate brightness. The automatic dimming is performed by controlling the diaphragm device and the lamp in the light source device based on the brightness information of the endoscope image obtained by image processing the image pickup signal output from the image pickup element of the endoscope. Will be done.

By the way, during preparations before performing various examinations and treatments using such an endoscope system, the endoscope is temporarily held by a hanger provided on a trolley gantry device. Further, for example, when the endoscope to be used is replaced with another endoscope during various examinations and treatments, the endoscope removed from the subject is temporarily held by the hanger. NS.

The examination room is generally set dark before such an examination or when the endoscope is replaced. Moreover, since the distance from the tip of the endoscope held on the hanger to the floor surface is sufficiently larger than the distance from the tip to the observation target in the subject body, the irradiation unit provided at the tip of the endoscope. The light emitted from is diffused over a wide area. Therefore, an excessive amount of illumination light may be supplied to the irradiation unit of the endoscope before the inspection or at the time of replacement by the automatic dimming function of the endoscope system. When such an excessive amount of illumination light is supplied, the tip of the endoscope may be overheated.

On the other hand, for example, Patent Document 1 describes an illumination means for irradiating illumination light and an electronic scope (endoscope) that guides the irradiated illumination light to irradiate the subject and captures an image of the subject. , The illumination light amount control means for controlling the illumination light amount of the illumination means based on the captured image, the support means (hanger) for supporting the electronic scope, the support detection means for detecting the support of the electronic scope by the support means, and the support. A medical observation system (endoscope system) having an illumination light amount limiting means for interrupting the control of the illumination light amount by the illumination light amount control means and limiting the illumination light amount to a predetermined light amount is disclosed. ..

Japanese Unexamined Patent Publication No. 2011-36484

However, the technique disclosed in Patent Document 1 described above requires various design changes such as newly adding a function such as an illumination light amount control means to the light source device.

The present invention has been made in view of the above circumstances, and it is possible to suppress heat generation due to the illumination light of the tip of the endoscope held on the hanger by a simple configuration without significantly changing the existing configuration. An object of the present invention is to provide a frame device for an endoscope and an endoscope system.

The endoscope pedestal device according to one aspect of the present invention includes a hanger capable of holding an operation unit of the endoscope, a suspension detection unit for detecting that the operation unit is held by the hanger, and the above-mentioned suspension detection unit. The hanger is provided with a light emitting portion that is arranged at a position facing the tip portion of the insertion portion of the endoscope when the operation portion is held and irradiates the tip portion with light. When it is detected that the operation unit is held by the suspension detection unit, the tip portion is irradiated with light .

Further, the endoscope system according to one aspect of the present invention is provided at an operation unit, an endoscope having an insertion portion extended from the operation portion, and a tip portion of the insertion portion, and illuminates the observation target. The amount of light that adjusts the amount of illumination light emitted from the irradiation unit based on the detection results of the irradiation unit that irradiates light, the peripheral light detection unit that detects the amount of light around the tip portion, and the peripheral light detection unit. An adjusting unit, a gantry device having a hanger capable of holding the operation unit of the endoscope, a suspension detection unit for detecting that the operation unit is held by the gantry device, and the hanger A light emitting unit that is arranged at a position facing the tip when the operation unit is held and irradiates the tip with light when the suspension detection unit detects that the operation unit is held. , Is provided.

According to the present invention, it is possible to suppress heat generation due to the illumination light at the tip of the endoscope held on the hanger by a simple configuration without significantly changing the existing configuration.

Perspective view showing the overall configuration of the endoscopic system Block diagram showing the main parts of the endoscopic system Block diagram of the control unit of the light source device Perspective view showing the main part of the hanger A perspective view showing a state in which the endoscope is held on a hanger. Explanatory drawing of the switch provided in the hanger insertion part according to the modification

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings relate to one embodiment of the present invention, FIG. 1 is a perspective view showing the overall configuration of the endoscope system, FIG. 2 is a block diagram showing a main part of the endoscope system, and FIG. 3 is a control unit of a light source device. A block diagram, FIG. 4 is a perspective view showing a main part of the hanger, and FIG. 5 is a perspective view showing a state in which the endoscope is held by the hanger.

The endoscope system 1 shown in FIG. 1 includes an endoscope 2, a light source device 3, a video processor 4, a monitor 5, and a medical trolley 6 for holding the endoscope 5.

As shown in FIG. 1, the endoscope 2 includes an elongated insertion portion 11 and an operation portion 12.

As shown in FIG. 2, the tip portion 11a of the insertion portion 11 is inserted into an image pickup element 13 made of a CCD or the like, an objective optical system 14 for forming a subject image on the image pickup element 13, and an insertion portion 11. One end of the light guide 15 which is an optical fiber, and an illumination optical system 16 as an irradiation unit for irradiating the light (illumination light) guided by the light guide 15 toward the observation target are arranged. There is.

The operation unit 12 is provided with a curved operation knob (not shown) and switches for various endoscopes. Further, the universal cable 17 extends from the side portion on the base end side of the operation portion 12.

The universal cable 17 is composed of a light guide 15 and a composite cable through which a signal line 13a extending from the image sensor 13 is inserted. A light source connector 17a that is detachably connected to the light source device 3 is provided at the extending end of the universal cable 17.

A scope cable 18 that is electrically connected to the signal line 13a is connected to the light source connector 17a, and the extension end of the scope cable 18 is detachably connected to the video processor 4 for signals. A connector 18a is provided.

The light source device 3 includes a control unit 21, a front panel 22, a lamp 23 as a light source, a first rotation filter 24, a diaphragm device (hereinafter referred to as a diaphragm) 25, and a second rotation filter 26. It has an optical lens 27 and.

The control unit 21 controls the entire light source device 3, and also controls the lamp 23 and the aperture 25 based on the brightness signal from the video processor 4. The control unit 21 includes a central processing unit (CPU), a ROM, a RAM, and the like. The configuration of the control unit 21 will be described in detail later.

The front panel 22 is provided with a mode changeover switch 22a for switching between a normal light observation mode and a special light observation mode, and various other operation switches. The operation signal from the front panel 22 is input to the control unit 21.

The mode changeover switch 22a constitutes a switching instruction unit for instructing switching between the illumination mode corresponding to the normal light observation mode and the illumination mode corresponding to the special light observation mode.

Here, the light source device 3 has a first illumination mode corresponding to the normal light observation mode and a second illumination mode corresponding to the special light observation mode. The wavelength band light for normal light observation in the normal light observation mode, which is the first illumination mode, is light in the visible light region, and is the wavelength for special light observation in the special light observation mode, which is the second illumination mode. Band light is light in a narrow band that is a part of the visible light region. That is, the special light is light having a part of the wavelength band of normal light.

Here, the light in the illumination mode corresponding to the special light observation mode is light having a part of the wavelength band of the light in the illumination mode corresponding to the normal light observation mode, but the illumination corresponding to the special light observation mode. The mode light may be light having a wavelength band completely different from that of the illumination mode light corresponding to the normal light observation mode. That is, in the light source device 3, one illumination mode is a mode in which light having a different wavelength band is emitted as illumination light from the other illumination mode, or one illumination mode is a mode in which the other illumination mode is used. It may be a mode in which light having a completely different wavelength band is emitted as illumination light.

The lamp 23 is a light source for supplying illumination light to a subject, and is, for example, a xenon lamp. The lamp 23 is turned on and off according to a drive signal from the control unit 21.

The rotation filter 24 is a filter for selectively emitting either wavelength band light for normal light observation or wavelength band light for special light observation. The rotation filter 24 rotates around the rotation axis of the rotation filter 24 based on the control signal from the control unit 21, and applies a filter according to the mode specified by the mode changeover switch 22a to the emitted light of the lamp 23. It operates to be placed on the optical path.

The rotation filter 24 is provided so as to be removable in the optical path of the light emitted by the lamp 23, and in the state of being inserted in the optical path, in the special light observation mode, a part of the light band in the normal light observation mode. An optical filter that transmits light.

Therefore, in the special light observation mode, the light source is configured by the lamp 23 and the optical filter of the rotation filter 24. That is, in the special light observation mode, the light source device 3 inserts an optical filter into the optical path and supplies the light transmitted by the optical filter to the light guide 15 as illumination light.

The diaphragm 25 constitutes a light amount adjusting unit capable of adjusting the amount of emitted light of the illumination light supplied to the light guide 15. When the diaphragm 25 closes or opens the diaphragm based on the diaphragm drive signal from the control unit 21, the amount of light emitted from the lamp 23 is adjusted.

The rotation filter 26 is a filter having an R (red) filter, a G (green) filter, and a B (blue) filter in order to emit light in a plane-sequential manner. The rotation filter 26 rotates at a predetermined rotation speed around the rotation axis of the rotation filter 26 based on a control signal from the control unit 21, and three RGB filters are sequentially continuously applied on the optical path of the emitted light of the lamp 23. It works as if it is arranged in a targeted manner.

The condenser lens 27 is an optical element for condensing the illumination light that has passed through the two rotation filters 24 and 26 on the base end surface of the light guide 15.

The control unit 21 of the light source device 3 selects the rotation filter 24 so as to select the filter according to the mode changeover switch 22a, and controls the aperture 25 based on the signal related to the brightness from the video processor 4. In the present embodiment, the signal related to brightness is the brightness target signal CS.

The video processor 4 includes a control unit 31, a dimming unit 32, a CCD drive unit 33, and a video processing unit 34.

The control unit 31 is a processing unit for controlling the entire video processor 4, and controls the dimming unit 32, the CCD drive unit 33, and the video processing unit 34 according to the observation mode specified by the user.

The dimming unit 32 generates a brightness target signal CS from the brightness, that is, the brightness of the video signal displayed on the monitor 5 generated by the video processing unit 34, and supplies the brightness target signal CS to the control unit 21 of the light source device 4. The brightness target signal CS is, for example, a signal indicating a value calculated and determined according to a comparison result between the brightness of the video signal displayed on the monitor 5 and the reference brightness. As described above, in the present embodiment, the dimming unit 32, together with the image sensor 13, the image processing unit 34, and the like, realizes a function as a peripheral light detection unit that detects the amount of light in the vicinity of the tip portion 11a.

The CCD drive unit 33 is a circuit that outputs a CCD drive signal that drives the image pickup device 13 based on the CCD drive control signal from the control unit 31.

Under the control of the control unit 31, the image processing unit 34 receives the imaging signal from the CCD 13 and performs various correction processing, enhancement processing, etc., and generates a video signal for displaying the endoscopic image on the monitor 5. And output to the monitor 5.

The operation signal from the front panel 22 of the light source device 4 is input to the control unit 31, and the control unit 31 executes processing according to the function of the switch operated on the front panel 22.

As shown in FIG. 3, the control unit 21 is composed of various circuits mounted on a circuit board. The control unit 21 includes various chips and circuits mounted on the substrate. The control unit 21 includes an FPGA (Field Programmable Gate Array) 41, a lamp drive unit 42, filter drive units 43 and 44, and an aperture drive unit 45.

The FPGA 41 has a CPU 41a, a storage unit 41b including a ROM and a RAM, and an aperture control unit 41c.

The CPU 41a constitutes an illumination mode switching control unit that switches between an illumination mode corresponding to the normal light observation mode NM and an illumination mode corresponding to the special light observation mode SM based on the signal from the mode changeover switch 22a.

The aperture control unit 41c is a control unit that outputs an aperture drive control signal IC corresponding to the brightness target signal CS from the video processor 4. That is, the aperture control unit 41c illuminates the aperture 25, which is the light amount adjustment unit, based on the brightness target signal CS, which is a light amount control signal generated based on the brightness of the image obtained by imaging the subject. The amount of emitted light is adjusted.

The brightness target signal CS indicates a brightness target value, and the aperture control unit 41c sets the target value (hereinafter referred to as the brightness target value) CSV indicated by the brightness target signal CS to a predetermined reference value RS. , Control the aperture 25. Specifically, the aperture control unit 41c provides an aperture drive control signal IC that closes or opens the aperture 25 depending on whether the input brightness target value CSV is larger or smaller than the predetermined reference value RS. It is generated and output to the aperture drive unit 45.

The lamp drive unit 42 outputs a lamp drive signal for lighting the lamp 23 based on the lamp drive control signal from the FPGA 41.

The filter drive unit 43 outputs a motor drive signal for driving a motor (not shown) that rotates the rotation filter 24 based on the filter drive control signal for controlling the rotation filter 24 from the FPGA 41.

The filter drive unit 44 outputs a motor drive signal for driving a motor (not shown) that rotates the rotation filter 26 based on the filter drive control signal for controlling the rotation filter 26 from the FPGA 41.

The aperture drive unit 45 outputs an aperture drive signal for driving the aperture 25 based on the aperture drive control signal IC for controlling the aperture 25 from the FPGA 41. The current aperture value DC based on the detection signal from a position detector such as a potentiometer provided in the aperture 25 is fed back and input to the aperture drive unit 45, and the feedback signal FB is sent to the aperture control unit 41c. It has been entered.

In this way, the aperture drive unit 45 that drives the aperture 25 in response to the aperture drive control signal IC input from the aperture control unit 41c constitutes a light amount adjusting unit together with the aperture 25 and the aperture control unit 41c.

For example, as shown in FIG. 1, the trolley 6 of the present embodiment includes a trolley main body 50 and an endoscope pedestal device 51 attached to the trolley main body 50.

The trolley body 50 has a frame 55 having a substantially inverted U shape when viewed from the front.

A plurality of shelves 56 are erected on the frame 55, and for example, a light source device 3 and a video processor 4 are mounted on one of these shelves 56 in an overlapping manner. Although not shown, various other devices constituting the endoscope system 1 can be placed on each shelf 56 as needed.

Further, on the back surface of the shelf 56 located at the lowest stage, casters 57 for making the trolley 6 movable are provided.

Further, a display unit mounting arm 58 is fixedly attached to the top of the frame 55, and a display unit 5 is attached to the free end of the display unit mounting arm 58.

The endoscope hanger device 51 includes a support column 60, a support column receiving portion 61 for supporting the base end side (lower end side) of the support column 60, and, for example, two columns provided on the tip end side (upper end side) of the support column. It is configured to have a hanger 62 and a light emitting portion 63 provided on the lower end side of the support column receiving portion 61.

The support column 60 is composed of a rod-shaped member formed so that a predetermined section on the tip end side extends in the horizontal direction by being bent in the middle. A section extending in the horizontal direction of the support column 60 is set as the hanger support portion 60a.

The support column 61 is fixed to one side of the frame 55 (for example, the right side of the frame 55). The strut receiving portion 61 has a pipe shape with an open upper end, and the base end side of the strut 60 can be inserted into the inside. Further, for example, a knurled screw type strut fixing portion 61a for fixing the base end side of the strut 60 inserted inside the strut receiving portion 61 to the upper end portion of the strut receiving portion 61 at an arbitrary height. Is provided.

As shown in FIGS. 4 and 5, the hanger 62 integrally includes a hanger body 65 having a substantially saddle shape and a fixing member 66 for fixing the hanger body 65 to the hanger support portion 60a of the support column 60. It is composed of.

A substantially U-shaped recess 65a is formed in a substantially central portion of the hanger body 65. Then, by engaging a part of the operation portion 12 of the endoscope 2 and the universal cable 17 in the recess 65a, the hanger 62 is in a state where the insertion portion 11 is hung down toward the floor surface. It is possible to hold (suspend) the twelve.

Further, the hanger body 65 is provided with a switch 67 as a suspension detection unit at a position where it comes into contact with the operation unit 12 locked (held) in the recess 65a. This switch 67 is, for example, a normally open switch, and turns on when pressed by the contact of the operation unit 12. As a result, the switch 67 can detect that the operation unit 12 is held by the hanger 62.

The light emitting unit 63 includes, for example, a lamp case 68 detachably fixed to a support column receiving portion 61, and a lamp 69 housed in the lamp case 68.

The lamp case 68 is fixed at a position facing the tip end portion 11a of the insertion portion 11 that hangs down from the operation portion 12 when the operation portion 12 is held by the hanger 62.

Further, for example, as shown in FIG. 2, the lamp case 68 has a built-in power supply 68a such as a battery. A switch 67 is electrically connected to the power supply 68a, and when the switch 76 is turned on, the power supply 68a can supply electric power to the lamp 69. Then, by lighting the lamp 69, the light emitting unit 63 can irradiate the tip portion 11a of the endoscope 2 held by the hanger 62 with light.

Operation of the operation unit 12 of the endoscope 2 before performing various examinations and treatments using the endoscope system 1, or the operation of the endoscope 2 removed from the subject during various examinations and treatments. When the portion 12 is held by the hanger 62, the endoscope 2 is held in a state where the insertion portion 11 is hung down toward the floor surface.

At this time, the tip portion 11a of the insertion portion 11 is arranged so as to face the light emitting portion 63.

Further, when the operation unit 12 is held by the hanger 62, the switch 67 is turned on, so that the lamp 69 of the light emitting unit 63 is supplied with the electric power from the power supply 68a.

As a result, the tip 11a of the endoscope 2 in which the operation unit 12 is held by the hanger 62 is irradiated with the light from the lamp 69 of the light emitting unit 63.

Then, by irradiating the tip portion 11a with light from the light emitting portion 63, the brightness of the subject image captured by the image pickup device 13 (the brightness of the video signal displayed on the monitor 5) is increased as a whole. Therefore, the diaphragm 25 in the light source device 3 is controlled in a direction that limits (decreases) the amount of illumination light to the illumination optical system 16.

Therefore, even during standby when the endoscope 2 is held by the hanger 62, the supply of an excessive amount of illumination light to the illumination optical system 16 is prohibited, and overheating of the tip portion 11a is suppressed.

According to such an embodiment, the hanger 62 capable of holding the operation unit 12 of the endoscope 2, the switch 67 for detecting that the operation unit 12 is held by the hanger 62, and the hanger 62 are operated. It is arranged at a position facing the tip portion 11a of the insertion portion 11 of the endoscope 2 when the portion 12 is held, and is directed toward the tip portion 11a when it is detected by the switch 67 that the operation portion 12 is held. By configuring the gantry device 51 with a light emitting unit 63 that irradiates light, the endoscope 2 is held on the hanger 62 by a simple configuration without significantly changing the existing configuration. It is possible to suppress heat generation due to the illumination light of the tip portion 11a.

That is, by providing the gantry device 51 with a light emitting unit 63 that directly irradiates the tip portion 11a of the endoscope 2, the illumination light amount control means dedicated to the standby state in which the operation unit 12 is held by the hanger 62. It is possible to suppress overheating of the tip portion 11a due to the illumination light by using the existing light amount control used when performing an examination or treatment in the subject body as it is without adding such a function.

Here, the configuration of the suspension detection unit is not limited to the switch 67 provided on the hanger 62 as described above, and for example, as shown in FIG. 6, when the operation unit 12 is held by the hanger 62. It is also possible to provide the switch 71 pressed by the support column 60 in the support column receiving portion 61 due to the change in the weight of the support column 60.

Further, the hanger body 65 may not be provided with the switch 67, and the lamp 69 may be configured to be always lit.

The present invention is not limited to the embodiments described above, and various modifications and modifications can be made, and these are also within the technical scope of the present invention.

1 ... Endoscopic system 2 ... Endoscope 3 ... Light source device 4 ... Video processor 4 ... Light source device 5 ... Monitor 5 ... Display 6 ... Medical trolley 6 ... Trolley 11 ... Insertion 11a ... Tip 12 ... Operation 13 ... Imaging element 13a ... Signal line 14 ... Objective optical system 15 ... Light guide 16 ... Illumination optical system 17 ... Universal cable 17a ... Light source connector 18 ... Scope cable 18a ... Signal connector 21 ... Control unit 22 ... Front panel 22a ... Mode selector switch 23 ... Lamp 24 ... First rotation filter 24 ... Rotation filter 25 ... Aperture device 26 ... Second rotation filter 27 ... Condensing lens 31 ... Control unit 32 ... Dimming unit 33 ... CCD drive unit 34 ... Image Processing unit 41a ... CPU
41b ... Storage unit 41c ... Aperture control unit 42 ... Lamp drive unit 43 ... Filter drive unit 44 ... Filter drive unit 45 ... Aperture drive unit 50 ... Trolley body 51 ... Mount device (scope device for endoscope)
55 ... Frame 56 ... Shelf 57 ... Caster 58 ... Display mounting arm 60 ... Support 60a ... Hanger support 61 ... Support support 61a ... Support fixing part 62 ... Hanger 63 ... Light emitting part 65 ... Hanger body 65a ... Recess 66 ... Fixed Member 67… Switch 68… Lamp case 68a… Power supply 69… Lamp 71… Switch 76… Switch

Claims (4)

A hanger that can hold the operation part of the endoscope,
A suspension detection unit that detects that the operation unit is held on the hanger,
A light emitting portion that is arranged at a position facing the tip portion of the insertion portion of the endoscope when the operation portion is held by the hanger and irradiates the tip portion with light.
Equipped with a,
The light emitting unit is an endoscope pedestal device characterized in that when it is detected that the operation unit is held by the suspension detection unit, the light emitting unit irradiates the tip portion with light. The endoscope mount device according to claim 1, wherein the suspension detection unit is a switch that comes into contact with a part of the operation unit and is turned on. An endoscope with an operation unit and an insertion unit extended from the operation unit,
An irradiation unit provided at the tip of the insertion portion and irradiating an illumination light toward an observation target,
An ambient light detection unit that detects the amount of light around the tip and
Based on the detection result of the ambient light detection unit, a light amount adjusting unit that adjusts the amount of illumination light emitted from the irradiation unit, and a light amount adjusting unit.
A gantry device having a hanger capable of holding the operation unit of the endoscope, and
A suspension detection unit that detects that the operation unit is held by the gantry device,
The hanger is arranged at a position facing the tip when the operation portion is held, and when it is detected by the suspension detection portion that the operation portion is held, the tip portion is irradiated with light. Light emitting part and
An endoscopic system characterized by being equipped with. The endoscope system according to claim 3, wherein the light amount adjusting unit increases the amount of light of the illumination light when the amount of light around the tip portion is smaller than a predetermined amount.

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