JP2003121755A - Microscope system for surgical operation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microscope system for surgical operation which can record a plurality of pictures photographed during a surgical operation with high picture quality and reproduce the recorded images in a state very close to the observation state during the surgical operation. SOLUTION: A microscope image photographed by a camera head 103 and an endoscope image or navigation image selected by a video selector 57 are individually recorded by a video deck 105 and a video deck 101. A data conversion part 106 obtains time codes of the recording by the video decks 101 and 105 and also obtain XY table position data from an XY table control part 45 and a video selector selection state from a display control part 55, and records the respective pieces of obtained information in a memory 102 in time series.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical microscope system used for surgery on microscopic regions, and more particularly to a method for recording and displaying an image obtained by a surgical microscope.

[0002]

2. Description of the Related Art A surgical microscope system used for microsurgery or the like generally has a function of recording an intraoperative image in a VTR or the like for the purpose of medical education, surgery records and the like. As this kind of surgical microscope system, for example,
In Japanese Patent Laid-Open No. 6-22980, a beam splitter is provided in the optical path of the observation light flux from the observation site incident on the observation optical system in order to make it possible to photograph the intraoperative microscope image at the same time as observation, and the beam is split by the beam splitter. A technique for guiding the observation light flux to a solid-state image sensor is disclosed.

In recent years, microsurgery may be performed using a surgical microscope system in which an endoscope and the like are used in combination with a surgical microscope. In such an operation, in order to enable the operator to observe both the microscopic image and the endoscopic image at the same time without taking his eyes off the eyepiece part, for example, in Japanese Patent Laid-Open No. 10-333047, A technique is disclosed in which a projection means for guiding an image from another image display means for displaying an endoscopic image or the like is arranged near the final image forming position of the microscope optical system, and further, Japanese Patent Application No. 2000-1.
No. 89892 discloses a technique in which an endoscopic image displayed on a microscope image can be enlarged / reduced and the display position can be moved.

[0004]

By the way, for example, in a surgical microscope system in which an endoscope is used in combination with a surgical microscope, it is desirable that both the microscopic image and the endoscopic image be recorded as intraoperative images. In this case, for example,
JP-A-10-333047 and Japanese Patent Application No. 2000-18
By using the technique of Japanese Patent Application Laid-Open No. 6-22980 in combination with the technique of 9892, it is possible to observe the microscope image and the endoscopic image at the same time, and it is possible to take the microscopic image and the endoscopic image at the same time. it can. As a method of recording the microscopic image and the endoscopic image, each image is independently recorded in a VTR or the like, or the endoscopic image is imposed on a part of the microscopic image by an image mixer or the like. To generate an image similar to the intraoperative observation state and generate a single V
It is conceivable to record in TR or the like.

However, each image has a VT independent.
When recorded in R, etc., each image can be recorded with high image quality, but it is difficult to obtain a temporal correlation between the two. On the other hand, when an endoscopic image is recorded as a child screen together with a microscope image, The image quality of the mirror image deteriorates, making it difficult to obtain detailed recording. In addition, especially Japanese Patent Application No. 2000-189
In the surgical microscope system capable of variably setting the display state of the sub-screen like the technology of No. 892, since the sub-screen position at the time of observation and the image imposed by the mixer are not correlated, VTR etc. When the image is reproduced, an image in a state different from the observation state during surgery is reproduced, which may cause inconvenience in medical education.

The present invention has been made in view of the above circumstances, and it is possible to record a plurality of images taken during an operation with high image quality. Moreover, when reproducing recorded images, the observation state during operation is extremely high. It is an object of the present invention to provide a surgical microscope system that can be reproduced in a close state.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 has a mirror body having an observation optical system for magnifying and observing a surgical site, and at least the observation field of view of the mirror body. In a surgical microscope including an in-field display means for displaying one image and an imaging means for imaging an observation image of the mirror body, the image captured by the imaging means and the in-field display means are displayed. At least one of a plurality of recording means for recording the image, a data recording means for recording the display position information in the observation visual field of the in-field display means in time series in accordance with the recording state of the recording means, Reproduction control means for reproducing and displaying a plurality of images recorded in the recording means in time series in accordance with the recorded data of the data recording means.

Further, in the surgical microscope system according to a second aspect of the invention, in the first aspect of the invention, the in-field display means is a field-of-view for inserting an image into a part of the field of view of the observation optical system. At least one of image display means, second image observation means different from the observation optical system, or image superposition means for superimposing and displaying an image on the observation optical system.

Further, in the surgical microscope system according to the invention described in claim 3, in the invention according to claim 1 or 2, the data recording means combines the setting state of the machine with the recording state of the recording means. It is characterized in that it is a means for recording in time series.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 relate to a first embodiment of the present invention, FIG. 1 is a schematic configuration diagram of an optical system of a binocular barrel of a surgical microscope system, and FIG. 2 shows a left observation optical system in FIG. 3 is a perspective view of the LCD optical system, FIG. 4 is a schematic block diagram of an XY table and a functional block diagram of an image recording control system, FIG. 5 is a functional block diagram of a recorded data reproducing system, and FIG. 6 is a microscope. FIG. 7 is an explanatory diagram showing the positional relationship in which the display image in the visual field is controlled with respect to the observation visual field.
FIG. 8 is an explanatory view showing a display position and a size in the LCD according to the position of the Y stage, and FIG. 8 is an explanatory view showing a reproduced image.

First, with reference to FIGS. 1 to 3, an optical configuration of a binocular barrel connected to a variable power optical system (not shown) in the body of a surgical microscope system will be described. In FIG. 1, reference numeral 1 denotes a fixed housing that is integrally attached to the mirror body via a connecting portion 2.
A pair of left and right imaging lenses 8a and 8b are disposed inside the. The imaging lenses 8a and 8b are optically connected to the observation optical system of the mirror body so that the left and right observation light fluxes emitted from the mirror body are made incident.

Further, inside the fixed housing 1, there are arranged mirrors 9a and 9b for reflecting the light beams incident through the imaging lenses 8a and 8b outward by 90 °, and an image rotator on the reflection optical path thereof. The prisms 10a and 10b are arranged.

Further, the image rotator prism 10
On the optical paths of a and 10b, prisms 11a and 11b for inverting the two observation light fluxes by 180 ° are respectively arranged. Further, the optical axes emitted from the prisms 11a and 11b are connected to eyepiece optical systems 22a and 22b described later. The triangular prisms 12a and 12b for reflecting in the direction parallel to the observation optical axes OL and OR are arranged. Here, as shown, the triangular prism 1
On the optical paths of 2a and 12b, the first intermediate image forming points 13a and 13 of the observation light beam formed by the image forming lenses 8a and 8b are formed.
b is located.

In the vicinity of the first intermediate image forming points 13a and 13b, prisms 14a and 14b which will be described later are provided.
It is arranged so as to face 2a and 12b. In this case, the upper surfaces of the prisms 14a and 14b have the first intermediate image formation point 13
It is arranged so as to substantially coincide with a and 13b. Further, relay lenses 15a and 15b that relay the observation light flux are installed and fixed on the optical paths of the triangular prisms 12a and 12b. Here, the prisms 11a and 11b and the triangular prism 1
2a and 12b, prisms 14a and 14b, and relay lenses 15a and 15b are contained in the movable housing 16.

The movable housing 16 is connected to the fixed housing 1 via connecting portions 17a and 17b so as to be rotatable about an axis O, that is, the incident optical axis of the prisms 11a and 11b. Also, the prisms 11a and 11b
Is a movable housing 16 by a cam mechanism or the like not shown.
Is rotatable about the axis O at an angle of 1/2 with respect to the rotation with respect to the fixed housing 1.

Further, the movable housing 16 is connected to the interpupillary adjustment housings 4a and 4b at positions corresponding to the optical paths of the relay lenses 15a and 15b, and the interpupillary adjustment housings 4a and 4b are provided with the eyepiece housings 5a and 5b. It is integrally formed.

Incidence reflection surfaces 19a, 19b and emission reflection surfaces 20a, 20b are provided in the interpupillary distance adjustment housings 4a, 4b.
Parallel prisms 18a and 18b each having an entrance reflection surface 19a and an exit reflection surface 20a are shown in FIG. 2, and eyepiece optical systems 22a and 22b are included in the eyepiece housings 5a and 5b, respectively. . And
Incident reflection surfaces 19a, 19 of the parallel prisms 18a, 18b
The observation light fluxes from the relay lenses 15a and 15b that are reflected by b and are reflected by the outgoing reflection surfaces 20a and 20b are imaged at the second intermediate image formation points 21a and 21b, respectively, and then the eyepiece optical system 22a, 22b. That is, the observation optical axes OL and OR of the microscope optical observation image are formed on the optical paths from the parallel prisms 18a and 18b to the eyepiece optical systems 22a and 22b, respectively.

Here, the interpupillary distance adjustment housings 4a, 4b
Is a state in which movement in the axial direction is restricted by the retaining members 23a and 23b (see FIG. 2).
6 is supported rotatably around an axis that is substantially coincident with the output optical axis (vertical direction in the drawing) from the triangular prisms 12a and 12b. That is, this structure and the parallel prism 18a,
A so-called Gitentop interpupillary distance adjustment mechanism is configured by 18b.

2 and 3, reference numerals 24a and 24b.
Shows a small LCD monitor for displaying an endoscopic image or the like as an electronic image. Image forming lenses 25a and 25b are arranged facing each other on the emission optical axes of the LCD monitors 24a and 24b.
The positions of the images of 4a and 24b are set on the upper surfaces of the prisms 14a and 14b. And these LC
D monitors 24a and 24b, imaging lenses 25a and 25b,
Also, the prisms 14a and 14b are arranged and fixed to the fixing plate 50, and LCD optical systems 26a and 2 as the in-field display means.
6b.

The fixed plate 50 has triangular prisms 12a, 1
Holes 50a and 50b are provided to avoid light flux from 2b. Further, the fixed plate 50 is fixedly mounted on the X table 29 of the XY table 28 that moves on a plane orthogonal to the optical axis of the microscope image.

Further, in the movable housing 16, for example, a beam splitter (not shown) is provided on the optical path of the microscope image, and the beam splitter serves as a camera head 103 (described later; FIG. 4; Refer to).

Next, the configurations of the XY table 28 and the image recording control system will be described with reference to FIG.

The XY table 28 comprises an X table 29 and a Y table 33, each of which is capable of moving the fixed plate 50 in mutually orthogonal axial directions (X axis direction, Y axis direction).

The X table 29 has a rack portion 29a and a bearing portion 29b, and a pinion gear 31 fixed to the rotary shaft of the motor 30 is meshed with the rack portion 29a.
Further, a guide shaft 32 penetrates through the bearing portion 29b, and the guide shaft 32 causes the X table 29 to move into the Y table 3.
3 is supported so as to be swingable in the X-axis direction.

The Y table 33 has a rack portion 33a and a bearing portion 33b, and the rack portion 33a has a motor 3
A pinion gear 35 fixed to the rotary shaft of No. 4 is meshed with the pinion gear 35. A guide shaft 36 is passed through the bearing portion 33b, and the Y table 33 is supported by the guide shaft 36 so as to be swingable in the Y axis direction on the housing 28a.

The motors 30 and 34 are constructed by incorporating encoders (not shown), and these encoders include an X table position detecting circuit 42 and a Y table position detecting circuit 44.
Connected to and respectively. In addition, the motors 30, 34
Are connected to the motor drive circuits 41 and 43, respectively. The motor drive circuit 41, the X table position detection circuit 42, the motor drive circuit 43, and the Y table position detection circuit 44 are connected to the XY table control unit 45.

On the other hand, reference numeral 51 in FIG. 4 denotes an operating portion, which includes a four-way switch 52 for operating the XY table 28, a display position movement mode switch 53, and an image selecting switch 53. , Are provided.

The operation section 51 is connected to the display control section 55, and the XY table control section 45 is connected to the display control section 55. The display control unit 55 is connected to the video conversion circuit unit 56 and the video selector 57, and the video selector 57 is connected to the endoscope TV camera 58 and the navigation device 59. A video deck (video recorder) 101 as a recording means is connected to the video selector 57, and the video deck 101 has an endoscope VT camera 5
8 and information from the navigation device 59 are output via the video selector 57 as needed. Further, the image conversion circuit unit 56 includes the display drive circuit 6
The left and right LCD monitors 24a, 24b are respectively connected via 1, 62, and information from the endoscope TV camera 58 and the navigation device 59 can be used for each LCD as necessary.
It can be displayed on the monitors 24a and 24b.

The camera control unit (CCU) 1 is attached to the camera head 103 for taking a microscope image.
A video deck (video recorder) 105 as a recording means is connected via 04.

A data conversion unit 106 is connected to the XY table control unit 45, the display control unit 55, and the video decks 101 and 105, and the data conversion unit 106 is LC.
The display position information and the like of the images displayed by the D optical systems 26a and 26b are generated in time-sequential correspondence with the recording states of the video decks 101 and 105, and are recorded in the memory 102 as a data recording means. There is.

Next, referring to FIG. 5, the VCR 10
The configuration of the reproduction system for the data recorded in Nos. 1 and 105 will be described.

An image control device 108 as a reproduction control means is connected to the memory 102, and the image control device 10 is connected.
A display state changeover switch 109 is connected to the switch 8.
Further, the image control device 108 includes a video deck 101,
Video decks 101a and 105a for respectively reproducing the data recorded in 105 are connected. Image output terminals (not shown) of the video decks 101a and 105a are connected to image input terminals (not shown) of the image mixer 110. The image output terminal (not shown) of the image mixer 110 is connected to the monitor 112.

Next, the operation of the surgical microscope system having the above configuration will be described.

The operator operates a gantry arm (not shown) to dispose and fix the mirror body at a desired position, and further, the movable housing 1
6 is rotated around the axis O, and the eyepiece optical systems 22a and 22b are arranged at the positions of the eyes of the operator.

The light emitted from the operating portion is incident on the image forming lenses 8a and 8b via a magnifying optical system (not shown) in the mirror body. The left and right light fluxes are the image rotator prism 10a,
After passing through 10b, the light is reflected by the prisms 11a and 11b and the triangular prisms 12a and 12b, and the first intermediate image forming point 13a,
An image is formed at 13b. After that, the luminous flux is transmitted to the relay lens 1
5a, 15b and transmitted to the parallel prisms 18a, 18b
After being reflected by the second intermediate image forming points 21a and 21b.
Is imaged again at. Then, the re-imaged light flux is guided to the eyepiece optical systems 22a and 22b, and the operator stereoscopically observes the surgical site at a desired magnification.

A part of the light on the optical path of the microscope image is split by a beam splitter (not shown),
It is guided to the camera head 103. The microscope image taken by the camera head 103 is a camera control unit 10
It is converted into a video signal in 4 and output to the video deck 105. At this time, if the video deck 105 is in the recording state, the time code is output from the video deck 105 to the data conversion unit 106. Here, the time code output from the video deck 105 is the absolute address of the recording time recorded with the video signal on the recording tape (video tape).

Further, the image selection switch 54 of the control unit 51
When the mode for displaying the endoscopic image from the endoscopic TV camera 58 and the navigation image from the navigation device 59 on the child screen (display image in the visual field) is selected by the operation of, the display control unit 55 causes the video selector. The signal indicating the selected state is output to the data conversion unit 106 and also to the video selector 57. The video selector 57 selectively reads the video signal from the endoscope TV camera 58 / navigation device 59 based on the signal and outputs the video signal to the video deck 101 via the video selector 57, and It is output to the video conversion circuit unit 56.

In this case, if the image selected as the display image within the field of view is the image from the endoscope TV camera 58, the VCR 101 starts recording at the same time when the input of the video signal is started, and the input of the video signal is started. Recording is stopped at the same time when it is stopped. On the other hand, if the image selected as the display image within the field of view is from the navigation device 59, the VCR 101 controls ON / OFF of the recording in conjunction with the recording state of the VCR 105. Then, like the video deck 105, the video deck 101 outputs the time code during recording to the data conversion unit 106. Here, the time code output from the video decks 101 and 105 is the absolute address of the recording time recorded on the recording tape (video tape) together with the video signal.

The video signal selected as the in-field display image and output to the video conversion circuit unit 56 is displayed on the LCD monitors 24a and 24b via the video conversion circuit unit 56 and the display drive circuits 61 and 62. LCD monitor 24
The light emitted from a and 24b is imaged on the upper surfaces of the prisms 14a and 14b by the imaging lenses 25a and 25b. Since the upper surfaces of the prisms 14a and 14b are located in the vicinity of the image formation points 13a and 13b, an endoscopic image 38 is displayed on the microscope image 37 as shown in FIG. 6, for example.

At this time, for example, when the display position movement mode selection switch 53 of the control unit 51 is turned on with the endoscopic TV camera 58 (endoscopic image) selected by the image selection switch 54, four directions are displayed. When the switch 52 is in the step mode, it is in the free mode when it is turned off. When the display position movement mode selection switch 53 is ON,
When the four-direction switch 52 is operated, the endoscopic image 38 is displayed on the microscope image 37, for example, A, B, C, D, E in the drawing.
It is moved in the F direction (A is out of the visual field of the microscope image 37). At that time, the image center of the endoscopic image 38 moves along a locus on a solid line connecting points a, b, c, d, e, and f, for example. Further, the display position movement mode selection switch 53 is turned off.
When the FF is performed and the free mode is set, the endoscopic image 38 is
The four-way switch 52 is moved according to the operation amount. Specifically, when the operator operates the operation unit 51, the display control unit 55 outputs a signal designating the display position of the endoscopic image to the XY table control unit 45. As a result, the motors 30 and 34 are driven, and the XY table 28 moves the endoscopic image to the position designated by the operator.

When the motors 30 and 34 are driven, pulses representing the drive amounts of these are input to the XY table control unit 45 via the X table position detection circuit 42 and the Y table position detection circuit 44, and the XY table control unit. 45 outputs the input pulse to the data conversion unit 106 as XY table position data of the display image in the field of view (endoscopic image). Here, the XY table position data is defined by coordinates whose origin is the center of the microscope observation visual field.

By the way, for example, when the endoscopic image 38 is at the position C in the step mode, the endoscopic image 38 is displayed on the large screen L (standard image size) (see FIG. ) Displayed in L), the endoscopic image 38
Is located outside the field of view of the microscope image 37, but the position information from the display controller 55 (A, B in FIG. 6,
C, D, E, F) to reduce this to a small screen S,
Further move to the lower right (child screen S indicated by diagonal lines in FIG. 7A)
By performing 1), the endoscopic image 38 can be displayed within the visual field (see FIG. 7B). In the navigation image from the navigation device 59,
By the same operation as the above-mentioned endoscopic image, it can be arbitrarily displayed on the microscope image in various display modes.

The data conversion unit 106 generates a reference time code counted when the power switch of a surgical microscope (not shown) is turned on, and also acquires time codes recorded in a table from the video deck 101 and the video deck 105. .

The data conversion unit 106 also acquires XY table position data from the XY table control unit 45.
Further, the data conversion unit 106 acquires, from the display control unit 55, image selection information indicating whether the selected image is an image by the endoscope TV camera 58 or an image by the navigation device 59.

Here, in the data conversion unit 106, the image selected as the display image in the visual field based on the signal from the display control unit 55 is the image by the endoscope TV camera 58, and the display image in the visual field is also set. Is displayed, the signal for recording is output to the VCR 101, and the VCR 1
At 01, an image is recorded. If the display image within the field of view is not in the display state (the position displayed in A of FIG. 5), the signal of the recording stop state is output to the video deck 101.

Further, the data conversion unit 106 is the display control unit 5
If the image selected as the display image within the visual field is based on the signal from the navigation device 59 based on the signal from 5, the data conversion unit 106 interlocks with the recording / recording stop state of the VCR 105. A signal for recording / stop recording is output to 101.

The data conversion unit 106 then outputs the reference time code, the time code output from the video decks 101 and 105, the XY table position data output from the XY table control unit 45, and the visual field output from the display control unit 55. The video selector selection state of the inner display image is recorded in the memory 102 in time series with reference to the reference time code.

Next, the reproduction control of the video tape recorded by the video decks 101 and 105 will be described.

Here, in FIG. 5, the video deck 10 is used.
A video tape (not shown) recorded by the video deck 105 is inserted in the video deck 5a.
A video tape (not shown) recorded by the video deck 101 is inserted in the.

The display state changeover switch 10 is selected by the observer.
When 9 is operated and a mode for simultaneously observing the image captured by the surgical microscope and the image captured by the endoscope is selected,
The image control device 108 reads the recorded data (the time code recorded by the video decks 101 and 105, the XY table position data, and the video selector selection state) from the memory 102.

Next, the image control device 108 receives the operation signal from the display state changeover switch 109 and reads the time code recorded on each video tape from the video deck 105a and the video deck 101a. The image control device 108 finds the image recording position of the corresponding time code from the reference time code of the memory 102, and refers to the XY table position data and the video selector selection state at that time.

Below, the video selector selection state is the endoscope TV.
The operation when the camera 58 (endoscopic image) is set will be described. The image control device 108 detects the XY table position data corresponding to the reference time code from the memory, and when the in-field display image is OFF, the image mixer 1
10 is controlled so that only the video signal from the video deck 105a is output to the monitor 112. In this case, the monitor 112 displays an image in the state shown in FIG. 8A, for example.

Next, when the information that the display image in the field of view has been moved to the position shown in FIG. 6C is detected from the XY table position data of the memory 102, the image control device 108.
The image mixer 11 displays the video signal from the VCR 105a on the parent screen and the video signal from the VCR 101a on the upper left of the small screen for the image mixer 110.
Controls to 0. Further, the image control device 108 issues an instruction to reproduce an image from the image recording position that matches the time code corresponding to the VCR 105a.
Output to 1a. As a result, the microscopic image and the endoscopic image that are simultaneously captured are simultaneously displayed on the parent-child screen of the monitor 112. The monitor 112 at this time is displayed, for example, in FIG.
The image in the state shown in (b) is displayed.

Further, when the observer wants to observe the endoscopic image in more detail, he or she operates the display state changeover switch 109. The operation signal is transmitted to the image control device 108, and the image control device 108 controls the image mixer 110 so that only the video signal from the video deck 101a is displayed as a parent screen. This allows the observer to observe the endoscopic image in detail.

Further, when the image selector selection state is set in the navigation device 59, the following actions are performed (the action when the XY table position data is in a position other than OFF is the same as in the case of endoscopic observation). Therefore, the operation only when it is OFF will be described.). Image control device 108
Compares the absolute addresses from the video decks 101a and 105a with the time code recorded in the memory 102, and controls the recorded image of the navigation device 59 to be reproduced in synchronization with the recorded image of the microscope image. When the observer operates the display state changeover switch 109 to select the mode for observing both the microscope image and the navigation image at the same time, the image control device 108 causes the video signals from the video deck 101a and the video deck 105a to be arranged in parallel. The image mixer 110 is controlled so that In this case, the monitor 112 displays an image in the state shown in FIG. 8C, for example.

According to the present embodiment, since it is possible to observe the recording of the microscope image and the endoscopic image in the same form as the display image within the visual field, it is possible to carry out the surgery at the medical education for the students or the conference after the operation. The same reproduced image can be observed.
Further, since each image is recorded separately, it is possible to display a detailed image corresponding to the case where each image is desired to be observed in more detail. For example, it becomes possible to select only the endoscope and observe with high image quality. Further, as for the navigation image, the observer can reproduce any image even when it is not displayed in the field of view, which facilitates the examination at the post-operative conference.

Next, FIGS. 9 to 11 relate to the second embodiment of the present invention, FIG. 9 is a schematic configuration diagram of an optical system of a mirror body portion of a surgical microscope system, and FIG. 10 is an outline of an XY table. Configuration diagram and image recording control system functional block diagram, FIG. 11 is a conceptual diagram showing memory area allocation of a hard disk drive, FIG. 12 is a functional block diagram of a recorded data reproducing system, FIG.
3 is an explanatory diagram showing an example of an image selectively displayed on the microscope image and the second observation optical system, and FIG. 14 is an explanatory diagram showing an example of a reproduced image displayed on the monitor. In this embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 9, reference numeral 250 indicates a mirror body of the surgical microscope supported by a mirror body supporting device (not shown). The mirror body 250 includes an objective lens 241, a variable power optical system 251,
Imaging lenses 211a and 211b, eyepiece optical system 212a,
212b is arranged to form a stereoscopic observation optical system.

Further, the variable power optical system 251 and the imaging lens 21
Half mirror 25 is provided on the optical path between 1a and 211b.
2 is inserted. Further, the mirror body 250 includes a superimposition monitor 281 as an image superimposing means and an image insertion optical system 27.
1 is built in, and these compose an image superimposing optical system together with the half mirror 252.

A total reflection section 253 is provided at a predetermined position on the object plane side of the half mirror 252, and the objective lens 2
The imaging lens 254 and the camera head 103 are arranged on the optical path when the light flux incident from the light source 41 is reflected by the total reflection unit 253.

Although not shown in FIG. 9, a mirror 250
LCD optical systems 26a and 26b as in-field image display means having the same configuration as that of the above-described first embodiment are provided therein, and an optical system different from the observation optical system (stereoscopic observation optical system). And a second observation optical system as a second image observation means. Here, the second observation optical system L displays an image of an endoscope or the like as an electronic image.
Has CD monitors 204a and 204b (see FIG. 10),
The light flux of the electronic image displayed on the LCD monitors 204a and 204b is passed through a relay optical system (not shown) or the like to a second eyepiece optical system (not shown) provided near the eyepiece optical systems 212a and 212b. ) Has been configured to lead to.

As shown in FIG. 10, the image recording control system according to the present embodiment is replaced with the data conversion unit 106 shown in the above-mentioned embodiment, and the arithmetic unit 2 as a reproduction control means.
The XY table control unit 45 and the display control unit 55 are connected to the arithmetic unit 255, and the camera head 103 is connected via the camera control unit (CCU) 104.

The video signal output unit (not shown) of the endoscope TV camera 58 is connected to the image input units (not shown) of the video selector 57 and the video selector 201.

The first image output unit (not shown) of the navigation device 59 is connected to the image input units (not shown) of the video selector 57 and the video selector 201.
A second image output unit (not shown) of the navigation device 59 is connected to an image input unit (not shown) of the video selector 205.

The image output section (not shown) of the video selector 57 is the LCD monitor 24 via the display drive circuits 61 and 62.
a and 24b, and is connected to the arithmetic unit 255.

The image output unit (not shown) of the video selector 201 is connected to the LC via the display drive circuits 202 and 203.
It is connected to the D monitors 204a and 204b, respectively, and is also connected to the arithmetic unit 255.

Further, the image output unit (not shown) of the video selector 205 is connected to the superposition monitor 281 via the display drive circuit 206 and also to the arithmetic unit 255.

The arithmetic unit 255 is also connected to a hard disk drive (HDD) 256. here,
As shown in FIG. 11, the HDD 256 has an XY table position data memory unit 259 and a time code memory unit 26.
1, a field-of-view image memory unit 262, a second observation optical system image memory unit 263, a superimposed image memory unit 264, and a microscope image memory unit 265 are provided.

Next, with reference to FIG. 12, the structure of the reproducing system for the data recorded in each memory unit of the HDD 256 will be described.

An arithmetic unit 255 is connected to the HDD 256, and the arithmetic unit 255 has a display state changeover switch 266.
Are connected. The arithmetic unit 255 is also connected to the mixer 267 via a communication port (not shown) and the first to fourth image output ports, and the mixer 267 is connected to the monitor 268.

Next, the operation of the surgical microscope system having the above configuration will be described.

During observation with a microscope, illumination light emitted from a light source (not shown) is reflected by the surgical site and is incident on the mirror body 250 via the objective lens 241. Objective lens 2
The observation light flux that has entered from 41 is projected through the variable power optical system 251, the half mirror 252, the imaging lenses 211a and 211b, and the eyepieces 212a and 212b into the operator's eye, whereby the operator's surgical site is 3D image observation is performed.

Further, the image displayed on the superposition monitor 281 is projected on the half mirror 252 via the image insertion optical system 27 to be superposed on the observation light flux of the microscope image, whereby the operator becomes a stereoscopic image. The superimposed monitor 281 image can be observed.

A part of the observation light flux of the microscope image is polarized by the total reflection portion 253 provided on the half mirror 252, and is coupled to the image pickup device (not shown) of the camera head 103 via the imaging lens 254 for photographing. Image. This allows
The camera head 103 captures an operation part image in a state where images are not superimposed.

The signals selected by the operator's switch operation (not shown) are the video selectors 57, 201, 20.
When input to 5, the signals are displayed as a display image in the visual field, an image of the second observation optical system, and a superimposed image, respectively.
Here, an example when each image is selectively displayed is shown in FIG. In FIG. 13, the endoscopic image 3 taken by the endoscopic TV camera 58 is shown in the visual field display image on the microscope image 37.
8 is displayed, and images 140a to 140d showing the observation positions of the endoscope and the microscope in the preoperative image output from the first image output unit (not shown) of the navigation device 59 are displayed in the second observation optical system. It is displayed. Also,
An index R indicating the observation direction of the endoscope P detected by the navigation device 59 is displayed on the superimposed image on the microscope image 37 (an image output from a second image output unit (not shown) of the navigation device 59). Is).

At this time, the selector 57 and the selector 20
1. The image output unit (not shown) of the selector 205 outputs the same image as the image displayed on each monitor to the arithmetic unit 255. Furthermore, the image of the surgical site taken by the microscope with the camera head 103 is CCU10.
It is converted into a video signal at 4 and input to the arithmetic unit 255. Further, the XY table position data of the in-field display image is input from the XY table control unit 45 to the arithmetic unit 255.

The arithmetic unit 255 generates a time code serving as a reference for recording from the image of the microscopically operated portion from the CCU 104. Further, the display state of the display image in the visual field is associated with the time code as XY table position data. Further, each input image (microscopic image from CCU 104, display image within field of view from selector 57, selector 2
The second observation light system image from 01, the superimposed image from the selector 205) is associated with the time code. Computing unit 255
Shows the XY table position data in the XY of the HDD 256.
The time code is stored in the table position data memory unit 259 and stored in the time code memory unit 261 of the HDD 256.
To the in-field image memory unit 262 of the HDD 256, and the second observation optical system image to the HDD.
The superimposed image memory unit 264 of the HDD 256 stores the superimposed image in the second observation optical system image memory unit 263 of 256.
The microscopic image is simultaneously recorded in the microscopic image memory unit 265 of the HDD 256 in time series.

Next, the reproduction control of the image recorded in the HDD 256 will be described.

The arithmetic unit 255 stores each data and image stored from the HDD 256 (XY table position data, time code, field-of-view display image, second observation optical system image, superimposed image, microscopic image). Read according to the time code. When the observer operates the display state changeover switch 266 to select the mode for displaying in the same state as the intraoperative observation state, the selected signal is sent to the arithmetic unit 255. In response to this, the arithmetic unit 255
Outputs the images (4 types) read from the HDD 256 to the mixer 267 from an image output port (not shown). Further, the arithmetic unit 255 outputs a control signal for the mixer 267 from a communication port (not shown).

As a result, for example, as shown in FIG. 14A, the monitor 268 (having an aspect ratio of 16: 9)
, The microscopic image is displayed at the position offset to the right,
An endoscopic image as an in-field display image is displayed as an impose as a small upper right screen of the microscopic image (the display position is determined by the XY table position data), and is displayed as a superimposed image on the microscopic image. The endoscope observation direction index is overlay-displayed, and the navigation image as the second observation optical system image is displayed on the right side of the microscopic image.

When the observer operates the display state changeover switch 266 to select the mode for observing the microscope in detail, the selected signal is sent to the arithmetic unit 255. In response to this, the arithmetic unit 255 performs the following control on the mixer 267 from a communication port (not shown). That is, as shown in FIG. 14B, the microscopic image is displayed at the left-aligned position of the monitor 268, and the endoscopic image that has been imposed on the microscopic image is not blocked by the right image. The navigation image is displayed at the next (upper) position, the navigation image is displayed at the right next (lower) position where the endoscopic image is not obstructed, and the overlay of the index in the endoscope observation direction is stopped.

According to the present embodiment, the H
Since the DD is used, a plurality of recording media are not required, and it is possible to easily record and reproduce a plurality of images in the field of view display, the second observation optical system, the image superimposing device, and the like at once.

Next, FIGS. 15 and 16 relate to the third embodiment of the present invention. FIG. 15 is a schematic configuration diagram of an XY table and a functional block diagram of an image recording control system, and FIG. 16 is displayed on a monitor. It is explanatory drawing which shows an example of the reproduced image. In this embodiment, the same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 15, the data conversion unit 106.
A communication port (not shown) of the ultrasonic suction device 300 is connected to.

Next, the operation of the surgical microscope system having the above configuration will be described.

The time code, the XY table position data, and the image selection state by image recording are stored in the memory 102 via the data conversion unit 106 as in the first embodiment.
It is recorded in. In the present embodiment, the setting data of the ultrasonic suction device 300 is further input to the data conversion unit 106 from a communication port (not shown) of the ultrasonic suction device 300. The input setting data of the ultrasonic suction device 300 is
The data conversion unit 106 records the time code in association with the time code in the same manner as other data in the memory 102.

When observing the intraoperative record, an image in the state shown in FIG. 16A, for example, is usually displayed on the monitor 112. When a mode in which the setting state of the ultrasonic suction device 300 can be confirmed is set by operating the display changeover switch 109 by the observer, the setting data of the ultrasonic suction device 300 is output from the memory 102 to the image control device 108. . The image control device 108 converts the received output data into character data and transmits it to the image mixer 110.
As a result, as shown in FIG. 16B, the image mixer 1
Reference numeral 10 superimposes and displays the received character data on the blank portion of the screen on the monitor 112.

According to the present embodiment, the observer can confirm the setting data of the energy treatment tool at the same timing as the progress of the surgery in addition to the surgery image such as the microscope image and the endoscopic image. It is possible to make a reliable decision when reviewing surgery at a conference or the like later.

According to each of the above-described embodiments, the following structure can be obtained.

(Supplementary Note 1) A mirror having an observation optical system for magnifying and observing a surgical site, in-field display means for displaying at least one image in the observation field of the mirror, and observation of the mirror In a surgical microscope provided with a photographing means for photographing an image, one or a plurality of recording means for recording the image photographed by the photographing means and the image displayed on the in-field display means; Data recording means for recording display position information in the observation field of view of the display means in time series in accordance with the recording state of the recording means, and a plurality of data recorded in the recording means based on at least the record data of the data recording means. And a reproduction control unit that reproduces and displays the images in time series in accordance with each other, and a surgical microscope system.

(Supplementary Note 2) The in-field display means is an in-field image display means for inserting an image into a part of the field of view of the observation optical system, a second image observation means different from the observation optical system, or At least one of image superimposing means for superimposing and displaying an image on the observation optical system.

(Supplementary Note 3) The surgical operation microscope according to Supplementary Note 1 or Supplementary Note 2, wherein the data recording means is means for recording the setting state of the machine in time series in accordance with the recording state of the recording means. system.

(Supplementary Note 4) Detecting means for detecting the display state of the in-field display means, and recording state of the recording means for recording the image displayed on the in-field display means according to the detection result of the detecting means. 6. The surgical microscope system according to any one of appendices 1 to 3, further comprising: a recording control unit that controls the.

(Supplementary Note 5) A reproduction control section for controlling the reproduction position of the reproduced image of the image displayed on the in-field display means based on the recording data of the data recording means. The surgical microscope system according to any one of 1 to 3 above.

(Supplementary Note 6) The reproduction control means has an input means for arbitrarily combining a plurality of recorded images, according to any one of supplementary notes 1 to 3. Surgical microscope system.

(Supplementary Note 7) The input means has a mode capable of selecting at least a form in which the plurality of recorded images are substantially in agreement with an actual observation state of the surgical microscope. The surgical microscope system according to attachment 4.

(Supplementary Note 8) Supplementary notes 1 to 3 characterized in that the recording means includes a plurality of video recorders.
The surgical microscope system according to any one of 1.

(Supplementary Note 9) The surgical microscope system according to any one of Supplementary Notes 1 to 3, wherein the recording means is a digital memory means including an HDD.

[0099]

As described above, according to the present invention, a plurality of images taken during an operation can be recorded with high image quality, and when the recorded images are reproduced, the observation state during the operation is extremely high. It can be reproduced in a close state.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an optical system of a binocular barrel portion of a surgical microscope system according to a first embodiment of the present invention.

2 is a schematic configuration diagram showing an observation optical system on the left side in FIG.

FIG. 3 is the same as the above, but is a perspective view of an LCD optical system.

FIG. 4 is a schematic block diagram of an XY table and a functional block diagram of an image recording control system.

[FIG. 5] Same as above, functional block diagram of recording data reproducing system

FIG. 6 is an explanatory diagram showing a positional relationship in which a display image in a visual field is controlled with respect to a microscope observation visual field.

FIG. 7 is an explanatory diagram showing the display position and size in the LCD according to the position of the XY stage.

FIG. 8 is an explanatory diagram showing a reproduced image of the above.

FIG. 9 is a schematic configuration diagram of an optical system of a mirror body portion of a surgical microscope system according to a second embodiment of the present invention.

10 is a schematic block diagram of an XY table and a functional block diagram of an image recording control system shown in FIG.

FIG. 11 is a conceptual diagram showing memory area allocation of the hard disk drive.

FIG. 12 is a functional block diagram of a recording data reproducing system of the same as above.

FIG. 13 is an explanatory diagram showing an example of an image selectively displayed on the microscope image and on the second observation optical system.

FIG. 14 is an explanatory diagram showing an example of a reproduced image displayed on the monitor.

FIG. 15 is a schematic block diagram of an XY table and a functional block diagram of an image recording control system according to the third embodiment of the invention.

FIG. 16 is an explanatory diagram showing an example of a reproduced image displayed on the monitor.

[Explanation of symbols]

26a, 26b LCD optical system (in-field image display means) 101 VCR (recording means) 102 memory (data recording means) 103 camera head (imaging means) 105 VCR (Recording means) 108 Image control device (reproduction control means) 255 arithmetic unit (reproduction control means) 256 hard disk drive (recording means) 281 Superimposition monitor (image superimposing means)

Claims (3)

[Claims] 1. A mirror having an observation optical system for magnifying and observing a surgical site, an in-field display unit for displaying at least one image in an observation field of the mirror, and an observation image of the mirror. In a surgical microscope including: a photographing means for photographing, one or a plurality of recording means for recording the image photographed by the photographing means and the image displayed on the in-field display means, and the in-field display means A data recording means for recording the display position information in the observation visual field in time series according to the recording state of the recording means, and a plurality of images recorded in the recording means based on at least the recording data of the data recording means. And a reproduction control means for reproducing and displaying the same in time series. 2. The in-field image display means for inserting an image into a part of the field of view of the observation optical system,
At least one of a second image observing means different from the observing optical system or an image superimposing means for superimposing and displaying an image on the observing optical system.
The surgical microscope system described. 3. The surgical microscope according to claim 1, wherein the data recording unit is a unit that records the setting state of the machine in time series in accordance with the recording state of the recording unit. system.