JP2003199707A - Endoscope apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To correctly align an observation image obtained by an optical system of an endoscope apparatus and a tomographic image signal corresponding to the observation image. <P>SOLUTION: A navigation device 17 detects the positions of the tip of the endoscope 11 and an operation part apart from the tip of the endoscope by a prescribed distance in the direction of the optical axis with a marker 19a and a digitizer 19b. Next, the navigation device 17 enlarges or reduces and rotates a pre-operation diagnosis image (a1) so that the position of the image is superposed on the endoscopic image obtained by a camera control unit 14. Then, the navigation device 17 deforms the pre-operation diagnosis image a1 by the map conversion based on the image surface curving information supplied from a memory chip in the endoscope 11 and inputs the deformed image in a mixer 21 via a cable 20. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention
And image the inside of the body cavity through a predetermined optical system
The present invention relates to an endoscope device. 2. Description of the Related Art In recent years, micro surgery, which is an operation for a minute diseased part, has been performed.
With the development and spread of surgeries, ophthalmology and extracranial nerves
Surgery, otolaryngology, etc., as well as surgical
Microsurgery performed under a microscope has become popular
I have. Accompanying this, of course, surgical microscopes
Various requests are made according to the surgeon's surgical technique, etc.
Good is added. [0003] In addition, recent surgery is often performed in patients after surgery.
For less invasive surgery in consideration of rehabilitation
Therefore, observation of the operative site and the like in the pores is desired.
You. Furthermore, when observing deep inside the body cavity, use a microscope
Now, we can use the shadows to observe
Observable to improve accuracy
Is desired. [0004] As means for improving such problems,
X-ray CT (Computed Tomography), MRI
(Magnetic resonance tomography apparatus)
The layer image data is projected on a monitor, and based on the image,
Where the target treatment site and surgical instruments are located and how
There was a way to proceed with surgery by displaying whether it was moving. [0005] In recent years, the inside of a pore has been
A method of performing surgery using a mirror is also used.
No. 5073 discloses an endoscope and a treatment instrument.
There is a method to project the operation by projecting the position on the preoperative diagnostic image.
Was. When using an endoscope, Japanese Patent Application Laid-Open
-244323, JP-B-7-62737,
JP-B-8-22272, JP-A-8-238216
And Japanese Patent Publication No. 2543855.
The endoscope itself has information specific to the endoscope,
The endoscope image is corrected based on the
There was a way to provide. [0007] In the above-mentioned prior art,
The surgeon uses the auxiliary optical system for observation inside the pore to
Observed areas that become blind spots, such as aneurysms
Observe the back side, nerve or surrounding tissue after tumor detachment
When an image captured by an auxiliary optical system such as an endoscope
The image is displayed in the field of view, in which case the endoscope is used.
It is necessary to know which part the image taken by
is there. [0008] For this purpose, MRI and
Pre-operative diagnostic images such as X-ray CT may be displayed
However, due to the distortion of the image plane due to the optical system of the endoscope, the actual view
There is a possibility that the correspondence between the perception organization and the position of the preoperative diagnostic image will be shifted
there were. This allows accurate location of the target tumor or blood vessel
In some cases, it was difficult to understand and treatment became difficult. To this problem
On the other hand, there is an endoscope image correction means mentioned in the prior art,
When performing alignment with a planar image such as X-ray CT, X
In contrast to planar images such as line CT, endoscopic images
Image, and it is not easy to remove the distortion.
Lacked accuracy. The present invention has been made in view of the above circumstances.
And the observation image obtained by the optical system of the endoscope device.
The tomographic image signal corresponding to the observed image
With the aim of providing an endoscope device that can
I do. [0010] To achieve the above object,
The endoscope device according to claim 1 is inserted into a body cavity.
Both endoscopes that image the inside of the body cavity via a predetermined optical system
A mirror device, which relates to the optical system of the endoscope device;
Optical information input means for inputting optical information;
The cross section obtained by a predetermined medical observation device capable of displaying a tomographic image
Tomographic image signal input means for inputting a layer image signal;
Based on the optical information from the scientific information input means.
Processing the tomographic image signal from the image signal input means;
Corresponding to the observation image obtained by the optical system of the endoscope apparatus.
Tomographic image signal processing means for obtaining a tomographic image signal
It is characterized by having done. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
This will be described with reference to FIG. (First Embodiment) FIGS. 1 and 2 show a first embodiment of the present invention.
FIG. 1 is a diagram showing an entire configuration of an endoscope apparatus according to an embodiment.
FIG. 2 is a sectional view showing a connection portion between the endoscope and the camera head.
FIG. (Configuration) First, referring to FIG.
The overall configuration will be described. As shown in FIG.
Is applied to an endoscope television observation device. The endoscope apparatus 1 comprises an endoscope 11 and a telescope.
Bi-camera head 12 and camera control unit 1
4, a navigation device 17, and a tomographic image signal input
Step 18, marker 19a, digitizer 19b, Miki
And a monitor 23. The endoscope 11 has an elongated insertion portion 31,
An eyepiece 32 continuously provided at the rear end of the insertion portion 31;
It is configured. The optical image of the subject is
The endoscope 11 is provided by an objective lens (not shown) provided.
An image is formed on a relay optical system (not shown), and the formed image is formed.
Is transmitted to the eyepiece 32 side by the relay optical system.
The flesh passes through an eyepiece (not shown) of the eyepiece 32.
It can be observed with eyes. The eyepiece 32 is connected to the television camera.
The pad 12 is detachably mounted. Tv camera head
Reference numeral 12 denotes a CCD 39 shown in FIG.
Built-in. This TV camera head 12 has a CC
At D39, the endoscope image is converted into an electric signal by photoelectric conversion.
You. The converted electric signal is output from the TV camera head 12.
The camera control unit is
It is transmitted to the knit 14. Camera control unit
Reference numeral 14 denotes an electric signal transmitted from the cable 13 as a video signal
And output to the video cable 15. The camera control unit 14 has a video
Cable 15 connected to the mixer 21. The TV camera head 12 is a cable
16 connected to a navigation device 17
You. A marker 19a is provided on the television camera head 12.
Is attached. Digitizer 19b is a marker 19a
Position is detected and the data signal of this detection result is navigated.
It is supplied to the gating device 17. Also navigation
The device 17 stores a tomographic image signal obtained by MRI or CT.
The preoperative diagnostic image a1 which is the signal is input to the tomographic image signal
It is provided by means 18. Navigator
The output side of the option device 17 is connected to the
It is connected to the mixer 21. The output side of the mixer 21 is a video cable 2
2 is connected to the monitor 23. Here, the tomographic image signal input means 18 includes:
Interface for electrical connection with MRI and CT, M
Record the preoperative diagnostic image a1 obtained by RI or CT
Recording medium reading means for reading the recorded recording medium.
Used. Next, referring to FIG. 2, the endoscope 11 and the television camera will be described.
The connection portion of the camera head 12 will be described in detail. As shown in FIG. 2, the eyepiece 3 of the endoscope 11
The memory chip 34 is arranged inside the second eyepiece 33.
Have been. Control lines and data lines of the memory chip 34
Is connected to the outside of the eyepiece 33 by the terminal 35
I have. On the other hand, the connecting portion 3 of the TV camera head 12
6 is provided with a terminal 37 detachable from the terminal 35.
ing. Terminal 37 is connected to data line 38.
You. The data line 38 is connected to the cable 16 shown in FIG.
Out of the TV camera head 12
You. In addition, the connection portion 36 of the TV camera head 12
A CCD 39 for photoelectrically converting a scientific image is provided. CC
The output of D39 is taken by the cable 13 shown in FIG.
Supplied to the laser control unit 14. With such a configuration, the endoscope apparatus 1
With the insertion portion 31 of the endoscope 11 being inserted into the body cavity,
Imaging the inside of the body cavity through a predetermined optical system of the insertion section 31
It has become so. The memory chip 34, terminals 35 and 37, and data
The data line 38 is the light of the endoscope 11 of the endoscope apparatus 1.
Optical information input means for inputting optical information on academic systems
ing. The tomographic image signal input means 18 is provided in the body cavity.
Obtained with a predetermined medical observation device capable of displaying tomographic images of
A tomographic image signal (preoperative diagnostic image a1) is input.
ing. The navigation device 17 is provided with the optical information
The tomographic image signal based on the optical information from the input means;
Processing the tomographic image signal from the signal input means 18;
Corresponding to the observation image obtained by the optical system of the endoscope apparatus 1
Tomographic image signal processing means for obtaining a tomographic image signal
You. (Operation) Next, the present embodiment having the above configuration will be described.
The operation of the embodiment will be described. In FIG. 1, an endoscope 1
1 is an optical image (not shown) captured by C1 of FIG.
Photo-electrically converted by the CD 39 and via the cable 13
The video signal is converted by the camera control unit 14.
Is input to the mixer 21 by the video cable 15.
It is. Next, referring to FIG.
Is an endoscope 11 or another type of endoscope not shown.
The focal plane (not shown) and at least
Also, field curvature information due to two optical aberrations is stored.
You. The field curvature information differs depending on the type of endoscope.
Has a value. The field curvature information of the memory chip 32 is transmitted to the terminal 3
5 and the terminal 37, the data line 38 and the cable of FIG.
Bull 16 sends to navigation device 17. In the navigation device 17, the marker 19
a and the digitizer 19b, the tip of the endoscope 11,
And the position relative to the surgical site at a fixed distance in the optical axis direction from the tip
Is detected. Next, in the navigation device 17,
Obtained by MRI or CT based on the position detection result
The pre-operative diagnostic image a1 to the camera control unit
So that the positional relationship matches the endoscope image obtained in step 14.
Enlarge or reduce and rotate. Further, the navigation device 17 has a memo
Preoperative diagnosis based on field curvature information from re-tip 32
The image a1 is subjected to a transformation process by mapping conversion, and a cable 2
0 is input to the mixer 21. In the mixer 21, an image from the cable 20
And the video from the cable 15 are synthesized and
Output. FIGS. 3 and 4 show the navigation device 17.
FIG. 3 is an explanatory diagram showing internal processing, and FIG.
FIG. 7 shows a case where the first type of endoscope A is used.
Reference numeral 4 denotes a second type of endoscope B as the endoscope 11
Is shown. In FIG. 3, the endoscope A image 41 is a first type.
5 shows a similar field curvature of the endoscope A. [0045] The nozzle supplied as the preoperative diagnostic image a1
The navigation a image 42 is an image without distortion. Previous
The image transformation means 43 inside the navigation device 17
The navigation a image 42 is
Scoe, which is the field curvature information stored in the memory chip 34,
Same as the endoscope A image 41 by using the curved pattern data b1.
Navigation a 'image by adding image deformation
The image is output as an image 45. On the other hand, in FIG.
Endoscope B image 46 is an image plane of endoscope B of the second type.
It shows the curvature. An endoscope B image 46 different from the endoscope A image 41 is
This shows the field curvature of the endoscope B (not shown). Said
Position and shape of the tumor supplied as the preoperative diagnostic image a1
Is an image without distortion.
You. The image deforming means 43 outputs the navigation b image 4
7 is stored in the memory chip 34 of the endoscope B.
Endoscope bending pattern data b2, which is the acquired field curvature information
As a result, image deformation of the same pattern as the endoscope B image 46 can be performed.
In addition, it is output as a navigation b 'image 49. (Effect) According to the first embodiment,
Of the observation image obtained by the optical system of the endoscope apparatus 1
In the endoscopic image, a section perpendicular to the optical axis
When projecting a layer image, an endoscopic image is
Since the same image deformation is applied, it can be obtained with the optical system of the endoscope device.
Observation image, and a tomographic image corresponding to the observation image
Can be accurately aligned and superimposed with high accuracy, and
Pre-operation corrected according to the type of endoscope even after replacing the mirror
The diagnostic image is superimposed. This allows the endoscope to be used
Precise diagnostic information necessary for the surgeon when performing surgery
The operation efficiency of the operation can be improved. (Second Embodiment) FIG. 5 and FIG.
FIG. 5 is an overall endoscope apparatus according to a second embodiment of the present invention.
FIG. 6 is an explanatory view showing the configuration, and FIG.
FIG. In the description of FIGS. 5 and 6,
The same components as those in the embodiment shown in FIGS.
The description is omitted by attaching the same reference numerals. (Configuration) As shown in FIG.
The optical image obtained by the endoscope 11 of FIG.
It is photoelectrically converted by the bi-camera head 50 and converted into an electric signal.
Is replaced. This TV camera head 50 has a zoom ring
A tag 51 is provided. The data converted by the TV camera head 50
The signal is sent to the camera control unit via the cable 13.
The video signal is converted into a video signal by the
5 to the mixer 21. On the other hand, the television camera head 50 has a cable
Connected to the navigation device 57 by the
You. The navigation device 57 is connected via the cable 20
It is connected to the mixer 21. Out of the mixer 21
The force is supplied to the monitor 23. Next, referring to FIG.
The connection part of 0 will be described in detail. As shown in FIG.
The endoscope 11 connected to the bi-camera head 50 is a first endoscope.
This is the same structure as that of the embodiment. On the other hand camera head connection
The section 66 has a scope connection terminal 67. Scope connection
The terminal 67 is connected to the data line 68. Data line
68 is drawn out of the camera head 50. The camera head connection section 66 has an optical image
Is disposed. CCD 69
The output terminal is the camera control unit 14 shown in FIG.
It is connected to the. An endoscope 11 is provided in front of the CCD 69.
A zoom optical system 70 for changing the magnification of the optical image is provided.
You. The zoom optical system 70 is rotated by rotating the zoom ring 51.
The magnification of the optical image is changed by moving the position of each lens back and forth.
U. Near the internal structure 71 of the zoom ring 51
Is the rotation angle detection that detects the rotation angle of the zoom ring 51.
A vessel 72 is arranged. The output of the rotation angle detector 72 is
As the camera magnification signal c1, the cable 56 shown in FIG.
It is output to the navigation device 57. (Operation) Next, the second embodiment having the above configuration will be described.
The operation of the embodiment will be described. In Fig. 5
The optical image (not shown) captured by the mirror 11 is shown in FIG.
Photoelectric conversion by CCD 69 via zoom optical system 70
Is done. The signal photoelectrically converted by the CCD 69 is
Converted to video signal by camera control unit 14
The data is input to the mixer 21. On the other hand, as shown in FIG.
The field curvature information from FIG.
The endoscope image bending pattern data signal b1 via line 68;
And sent to the navigation device 57. In the navigation device 57, MRI or C
The preoperative diagnostic image a1 obtained by the T
And the tip of the endoscope 11 by the digitizer 19b
Position information at a fixed distance from the edge,
And transforming it based on the zoom magnification signal c1
The data is input to the mixer 21 by the controller 20. In the mixer 21
The two images are combined and output to the monitor 23. FIGS. 7 and 8 show the navigation device 57.
FIG. 7 is an explanatory diagram showing internal processing, and FIG.
FIG. 4 shows a case where 51 is set on the high magnification side, and FIG.
The case where the ring 51 is set on the low magnification side is shown. As shown in FIG. 7, the zoom ring 51 is
When set on the magnification side, the endoscope image (high
Magnification) 81 is imaged. The endoscope image (high magnification) 81 is transmitted to a television camera.
Image of the endoscope 11 when the head 50 captures images at high magnification
FIG. The navigation image which is the preoperative diagnostic image
Although the image T82 is an image without distortion, the navigation T
The image transformation means 83 inside the navigation device 57
The image T82 is stored in the memory chip 34.
Endoscope bending pattern data b1 which is the obtained field curvature information
And the zoom magnification signal c1, the endoscope image (high magnification) 81
Add the same pattern image deformation as
Output as image T'85. On the other hand, setting the zoom ring 51 to the low magnification side
When the camera is turned on, the CCD 69 has an endoscope as shown in FIG.
A mirror image (low magnification) 86 is captured. The endoscope image (low magnification) 86 is transmitted to a television camera.
Image of the endoscope 11 when the head 50 takes an image at a low magnification
FIG. The navigation image as the preoperative diagnostic image
The image W87 is an image without distortion, but the navigation
Image transformation means 83 inside the navigation device
For W87, the endoscope bending pattern data b1 and
An endoscope image (low magnification) 86 and a zoom magnification signal c1
Navigation image with equivalent pattern deformation
Output as W'89. (Effect) According to the second embodiment, the first
As in the present embodiment, a preoperative diagnostic image is added to the endoscope image.
When projecting a tomographic image perpendicular to the depth direction,
In addition to being able to superimpose images accurately,
Accurately superimposes the corrected tomographic image even when changing the zoom magnification
it can. (Third Embodiment) By the way, in an endoscope,
When performing more treatment, the displayed diagnostic image is
How far from the tip of the body or tissue surface
You must proceed while judging how deep the image is
I have to. Conventionally, preoperative diagnostic images for the coordinates of the skull
Is displayed, the position of the diagnostic image with respect to the endoscopic image is
It was difficult to grasp the staff. The third embodiment is based on such circumstances.
It was achieved by the simple operation during operation.
Provide an endoscope device capable of displaying a preoperative diagnostic image
The purpose is to. FIGS. 9 to 11 show a third embodiment of the present invention.
FIG. 9 is an explanatory diagram showing the entire configuration of the endoscope apparatus,
FIG. 10 is a cross-sectional view showing the distal end of the endoscope, and FIG.
FIG. 4 is a plan view showing an image displayed in FIG. (Configuration) As shown in FIG.
Is an endoscope 91, a television camera head 92, and a camera.
Control unit 94 and navigation device 97
, Tomographic image signal input means 98, marker 99a,
Digitizer 99b, mixer 101, monitor 103,
And a distance setting means 104. Camera control unit 94, tomographic image
Image signal input means 98, marker 99a, digitizer 99
b, the mixer 101 and the monitor 103 are the first embodiment of FIG.
The configuration is similar to that of the embodiment. The endoscope 91 is connected to the television camera head 92.
Then, the optical image is photoelectrically converted. TV camera head 92
Is connected to the camera control unit 94. turtle
The output of the laser control unit 94 is connected to the mixer 101.
Has been continued. The TV camera head 92 has a marker.
A mosquito 99a is attached. On the other hand, as shown in FIG.
The distal end portion 121 includes an observation optical system 122 and an illumination optical system 123.
have. Also, ultrasonic waves are applied to both ends of the diameter of the tip 121.
A transducer 124 and an ultrasonic receiver 125 are arranged.
You. The output of the ultrasonic receiver 125 is shown in FIG.
To the ultrasonic distance measuring means 105 via the Levi camera head 92
Connected. As shown in FIG. 9, the ultrasonic distance measuring means 105
Is a distance data based on the output of the ultrasonic receiver 125.
The data is created and input to the navigation device 97. The navigation device 97 includes the mixer 10
1. Connected to digitizer 99b and distance setting means 104
Have been. The output side of mixer 101 is connected to monitor 103
Is done. A monitor screen 14 shown in FIG.
1 is displayed. As shown in FIG. 11, the monitor screen 141
Represents the endoscope image 142 and its image center 143,
Image 144, distance 145 from endoscope tip, and inside
It is configured by a distance 146 from the endoscope endoscope to the tomographic image. The tomographic image 144 is an endoscope image 142
May be superimposed. (Operation) Next, the operation of the third embodiment will be described.
explain. As shown in FIG. 10, the endoscope 91 has a distal end.
A light source device (not shown) is provided by the illumination optical system 123 of the unit 121.
The illuminating light is transmitted by the device to illuminate the tissue 129. Organization
The image 129 is transmitted by the observation optical system 122 and
CCD and camera control in the bi-camera head 92
The video signal is converted by the video unit 94. Endoscope 91 and TV camera head 92
Endoscope image captured by
The tomographic image based on the preoperative diagnostic image a1 from the
The image is synthesized by the server 101 and displayed on the monitor 103. The image center 128 shown in FIG.
Is displayed at the position of the image center 143.
It is. On the other hand, as shown in FIG.
The output wave 126 of the ultrasound signal from 124
And the reflected wave 127 of the reflected signal is an ultrasonic wave
It is converted into an electric signal by the receiver 125 and the reflected wave
The ultrasonic distance measuring means 105 shown in FIG.
The distance 130 from to the tissue 129 is calculated. Ultrasonic measurement
The distance information from the distance means 105 is transmitted to the navigation device 97.
And a preoperative diagnostic image from the tomographic image input means 98
Table of distance from tip with tomographic image 144 by a1
The display 145 is displayed on the monitor screen 141. On the other hand, the distance setting means 104 shown in FIG.
Therefore, the distance 131 from the tip 121 shown in FIG. 10 is set.
Is done. The navigation device 97 starts from the tip 121
At a distance 131 of the pair perpendicular to the depth direction of the distance 131
A tomographic plane 132 in the weave 129 is set, and this tomographic plane 132
Diagnosis of tomographic images from the tomographic image input means 98
The monitor screen 141 shown in FIG. 11 is selected from the image a1.
Is displayed as a tomographic image 144. Also, distance setting means
The distance 131 set by 104 is the monitor screen 14
1 as distance information (display 146 of distance from tomographic image)
To display. In the tomographic image 144, the endoscope 11 has been moved
In this case, the distance 1 set according to the movement of the endoscope 11 is also set.
31 is updated. (Effect) According to the third embodiment, the monitor
Preoperative diagnostic image together with the endoscope image 142 on the data screen 141
Display a tomographic image 144 perpendicular to the depth direction of the tissue
Display distance can be set to any depth,
Selection of tomographic image 144 of desired depth with respect to mirror image 142
The tissue 129 can be selected from the tip 121 and the tissue 129 can be selected.
The tomographic image can be displayed by displaying the distance to
The depth of the image 144 from the tissue surface can be known,
It becomes easy to determine the distance from the endoscope for setting the image. The tomographic image 144 is added to the endoscope image 142.
The same effect can be obtained when projecting
You. (Fourth Embodiment) FIG. 12 and FIG.
FIG. 12 shows a tip of an endoscope according to a fourth embodiment of the present invention.
FIG. 13 is a sectional view showing an end portion, and FIG. 13 shows an image displayed on a monitor.
FIG. About the overall configuration of the fourth embodiment,
This will be described with reference to FIG. (Structure) The fourth embodiment is shown in FIG.
The distance setting means 10 shown in FIG.
FIG. 9 shows a tomographic image set at the depth of FIG.
Select from preoperative diagnostic image a1 from tomographic image input means 98
Then, it is displayed on the monitor screen 161 shown in FIG. The monitor screen 161 displays an endoscope image 162,
Tomographic image 163, distance 165 from tip, depth from surface
166 is displayed. (Operation) First, the operator sets the distance shown in FIG.
The depth from the tissue 129 shown in FIG.
(The numerical value of the depth 166 shown in FIG. 13). this
Thereby, the navigation device 97 displays the tomographic image.
The distance 131 from the distal end portion 121 of the endoscope 91
The distance 130 from the part 121 and the depth from the surface of the tissue 129
The sum is calculated as the sum and the tomographic image at the calculated distance
Select from the preoperative diagnostic image a1 from the image input means 98
The tomographic image 163 is displayed on the monitor screen 161 shown in FIG.
To display. As a result, the distance from the tip of the endoscope is 1
Even if 30 changes, the tomographic image 15 always has a constant depth.
1, tomographic image 152, tomographic image 153, tomographic image
154 are obtained. (Effect) According to such a fourth embodiment,
Then, the operation is performed on the monitor screen 161 together with the endoscope image 162.
Display a pre-diagnosis tomographic image perpendicular to the tissue depth direction.
In the case shown, the distal end portion 121 of the endoscope 91 changes.
Even if the fault is at any depth from the surface of the tissue 129
Images can always be displayed. The tomographic image 164 is added to the endoscope image 162.
The same effect can be obtained when projecting
You. [Supplementary Note] The above-mentioned description of the present invention as described in detail above
According to the embodiment, the following configuration can be obtained.
You. (Appendix 1) When inserted into a body cavity
Endoscope device for imaging the inside of the body cavity through a predetermined optical system
An optical system related to the optical system of the endoscope apparatus
Optical information input means for inputting information, and a tomographic structure in the body cavity
A tomographic image obtained by a predetermined medical observation device capable of displaying an image
Tomographic image signal input means for inputting an image signal;
The tomographic image based on the optical information from the information input means
Processing the tomographic image signal from the signal input means;
A section corresponding to an observation image obtained by the optical system of the endoscope apparatus;
And a tomographic image signal processing means for obtaining a layer image signal.
An endoscope apparatus characterized by the above-mentioned. (Additional Item 2) Internal Information is Maintained
An endoscope having means for performing the
This is the curvature of field of the optical system of the endoscope.
A pre-operative diagnostic image display device for further processing, and the endoscope
Means for displaying a preoperative diagnostic image in the image.
An endoscope apparatus characterized by the following. (Appendix 3) Changing the magnification of the optical system
Means for outputting magnification change information,
The preoperative diagnostic image display device displays the magnification change information and the fixed
The processing is carried out based on the presence information.
Endoscope device. (Appendix 4) Distance from the tip of the endoscope
Distance setting means for designating the separation; and
Distance measuring means and the distance setting means
A preoperative diagnostic image display device for displaying a preoperative diagnostic image
4. The endoscope apparatus according to claim 3, wherein: (Additional Item 5) The distance measuring means is an ultrasonic wave
In the additional item 4, which is a vibrator and a receiver
The endoscope device according to claim 1. (Additional Item 6) The distance measuring means is capable of causing interference.
The endoscope apparatus according to additional item 4, wherein light is used.
Place. (Additional Item 7) The Preoperative Diagnostic Image Display Device
Is a process of returning a curved image to a plane according to the field curvature information.
4. The endoscope apparatus according to claim 3, wherein: (Additional Item 8) The field curvature information is a focus
Attached information characterized by location and information before and after it
Item 4. The endoscope apparatus according to Item 3. (Additional Item 9) The Preoperative Diagnostic Image Display Device
Means for specifying the depth of the tissue, and the depth and
The preoperative diagnostic image is determined by the sum of the results obtained by the distance measuring means.
5. The endoscope according to claim 4, wherein the endoscope displays an image.
apparatus. (Appendix 10) Distance by the distance means
Additional note characterized by having display means for displaying information
Item 5. The endoscope apparatus according to Item 4. The endoscope according to claim 1 as described above.
According to the device, the observation image obtained by the optical system of the endoscope device
And the tomographic image signal corresponding to this observation image
Since it can be placed side by side, it is a place to perform surgery using an endoscope device.
Provides accurate preoperative diagnostic information to the surgeon
Operation efficiency can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing an overall configuration of an endoscope apparatus according to a first embodiment of the present invention. FIG. 2 is a sectional view showing a connection portion between the endoscope and the camera head according to the first embodiment of the present invention. FIG. 3 is a first explanatory diagram showing processing inside the navigation device according to the first embodiment of the present invention. FIG. 4 is a second explanatory diagram showing processing inside the navigation device according to the first embodiment of the present invention. FIG. 5 is an explanatory diagram showing an entire configuration of an endoscope apparatus according to a second embodiment of the present invention. FIG. 6 is a sectional view showing a connection portion between an endoscope and a camera head according to a second embodiment of the present invention. FIG. 7 is a first explanatory diagram showing processing inside a navigation device according to a second embodiment of the present invention. FIG. 8 is a second explanatory diagram showing processing inside the navigation device according to the second embodiment of the present invention. FIG. 9 is an explanatory diagram showing an entire configuration of an endoscope apparatus according to a third embodiment of the present invention. FIG. 10 is a sectional view showing a distal end portion of an endoscope according to a third embodiment of the present invention. FIG. 11 is a plan view showing an image displayed on a monitor according to a third embodiment of the present invention. FIG. 12 is a sectional view showing a distal end portion of an endoscope according to a fourth embodiment of the present invention. FIG. 13 is a plan view showing an image displayed on a monitor according to a fourth embodiment of the present invention. [Description of Signs] 1 endoscope device 11 endoscope 12 television camera head 14 camera control unit 17 navigation device 18 tomographic image signal input means 19a marker 19b digitizer 21 mixer 23 monitor 34 ... Memory chip 38 ... Data line 39 ... CCD

Continuation of front page    (72) Inventor Motoichi Nakamura             2-43-2, Hatagaya, Shibuya-ku, Tokyo Ori             Inside of Opus Optical Co., Ltd. (72) Inventor Masaaki Ueda             2-43-2, Hatagaya, Shibuya-ku, Tokyo Ori             Inside of Opus Optical Co., Ltd. (72) Inventor Kazuhito Nakanishi             2-43-2, Hatagaya, Shibuya-ku, Tokyo Ori             Inside of Opus Optical Co., Ltd. (72) Inventor Masakazu Mizoguchi             2-43-2, Hatagaya, Shibuya-ku, Tokyo Ori             Inside of Opus Optical Co., Ltd. (72) Inventor Masahiko Kinukawa             2-43-2, Hatagaya, Shibuya-ku, Tokyo Ori             Inside of Opus Optical Co., Ltd. F-term (reference) 2H040 BA22 DA01 DA32 GA02 GA11                 4C061 CC06 FF02 HH52 JJ17 JJ18                       JJ19 LL03 NN01 NN05 SS11                       SS21 TT12 WW10 WW18                 4C301 AA03 DD21 EE11 FF05                 4C601 DD01 EE09 FE01 FE02                 5C054 AA01 CC07 EA01 FC11 FD05                       FD07 FE12 HA12

Claims (1)

Claims: 1. An endoscope apparatus which is inserted into a body cavity and captures an image of the inside of the body cavity via a predetermined optical system, wherein optical information relating to the optical system of the endoscope apparatus is provided. Optical information input means for inputting; tomographic image signal input means for inputting a tomographic image signal obtained by a predetermined medical observation device capable of displaying a tomographic image in the body cavity; and the optical information from the optical information input means And processing the tomographic image signal from the tomographic image signal input means based on the tomographic image signal input means, and obtains a tomographic image signal corresponding to an observation image obtained by the optical system of the endoscope apparatus. An endoscope apparatus characterized in that: