JP2003270539A - Observation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an observation apparatus which makes it possible to obtain a tomographic image suitable for microsurgery using optical observation means. <P>SOLUTION: The apparatus has a microscope 41 having an observation optical axis for observing the examinee, an ultrasonic probe 58 for obtaining the ultrasonic tomographic image of the examinee, a detecting element means 56 for detecting the position of the microscope 41, and a sensor 59 capable of detecting the position of the probe 58. The apparatus is capable of obtaining the relative positions of the observation optical axis O of the microscope 41 and the ultrasonic tomographic image of the probe 58 in accordance with the results detected by the means 56 and the sensor 59. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an observation device such as a surgical microscope for observing the condition of a surgical site during surgery.

[0002]

2. Description of the Related Art Generally, in a microsurgery performed by using a surgical microscope, an X-ray CT scanner device or MRI is used in order to grasp the position of a lesion part to be treated.
(Nuclear magnetic resonance imaging) and the like were used to obtain a tomographic image of a desired part of the living body, and after the body surface was incised according to this information, a treatment such as digging down to the lesion site was performed.

In such a surgical method, in particular, considering the case of the head that is the subject of neurosurgery, an incision is made after the head is opened, but before the lesion such as a brain tumor is treated, until the lesion is reached. During the process, there are many delicate tissues such as blood vessels and nerves in the middle of the process. It is necessary to perform the treatment operation with great care so as not to damage these tissues and the surrounding normal tissues. However, these surgical operations largely depend on the skill (intuition and skill) of the surgeon, and are regarded as so-called "master craftsmanship".

Further, in head surgery, the internal pressure of the skull is lowered or the pressure of the cerebrospinal fluid is changed due to the craniotomy, so that the position and shape of the lesioned part are different from those before the craniotomy. Can change. This tendency is even more pronounced in deep intracranial surgery, where surgery is originally difficult. Therefore, a tomographic image obtained preoperatively by an X-ray CT scanner device or MRI (Nuclear Magnetic Resonance Imaging) is only a target in actual surgery, and does not serve as accurate information indicating the actual position. There was a situation.

Therefore, there has been proposed an X-ray CT scanner device capable of obtaining a tomographic image of the head during and after the craniotomy (Japanese Patent Laid-Open No. 1-236046). Furthermore, recently, an ultrasonic diagnostic apparatus that can obtain a tomographic image during surgery has been used.

[0006]

However, the X-ray C
In the case of the T-scanner device, although relatively accurate position information can be obtained, the entire device becomes large, and this large device must be installed in the operating room. The problem is that the space becomes narrower, and further, the operation (time) performed during the operation is considerably increased, which makes the operation complicated and prolongs the operation time.

Further, in the microsurgery using the surgical microscope, considering the moving space and working space required when changing the position of the mirror body of the surgical microscope,
More difficult problems arise in the layout of the operating room.

On the other hand, when the conventional ultrasonic diagnostic apparatus is used, since the operation of the ultrasonic diagnostic probe must rely on the intuition of the operator, the position information of the tomographic image is unclear and reliable. Inferior in nature. Also, as in stereotactic brain surgery, when the frame is fixed to the head and the positioning of the endoscope for observation and the equipment for its treatment is performed, the operation is performed under the surgical microscope. Since the ultrasonic probe device itself interferes with the operation of surgery, the ultrasonic diagnostic device cannot be used.

The present invention has been made in view of the above problems, and an object thereof is to provide an observing apparatus capable of obtaining a tomographic image suitable for microsurgery using an optical observing means.

[0010]

The invention according to claim 1 is
Optical observation means for observing the subject having an observation optical axis, an ultrasonic probe for obtaining an ultrasonic tomographic image of the subject,
First detecting means capable of detecting the positional information of the optical observation means, and second detecting means capable of detecting the positional information of the ultrasonic probe.
And a calculation for obtaining a relative position between the observation optical axis of the optical observation means and the ultrasonic tomographic image based on the detection results of the first detection means and the second detection means. An observing device comprising:

The invention according to claim 2 is characterized in that the first detecting means is connected to the optical observing means, and the second detecting means is provided in the ultrasonic probe. It is the observation device described.

[0012]

EXAMPLE An example of a surgical microscope apparatus will be described with reference to FIG. FIG. 1 (a) shows a schematic structure in the vicinity of a body portion of the surgical microscope apparatus, and FIG. 1 (b) shows a structure of an ultrasonic probe supporting and operating device section thereof.

The microscope body 1 of the surgical microscope apparatus shown in FIG. 1A is a stereoscopic observation optical system having an illumination system (not shown), a pair of left and right observation optical paths for stereoscopic observation, an eyepiece (not shown), etc. And a lens barrel 2 having a lens barrel 2 are provided to form a stereoscopic microscope for stereoscopically observing a surgical site. The mirror body 1 is supported by a support operation arm mechanism (not shown),
The position and orientation in the three-dimensional space can be changed, and the position and orientation can be manipulated to be arbitrarily selected.

Further, the mirror body 1 is provided with an ultrasonic probe 3 and a supporting and operating device (position adjusting means) 4 for the ultrasonic probe 3. The support operation device 4 for the ultrasonic probe 3 is shown in FIG.
I will explain based on. The supporting and operating device 4 has a guide main body member 5 fixed to the mirror body 1, and a guide hole 7 is provided in the guide main body member 5 for slidably moving the operation shaft 6. The operation shaft 6 is guided by the guide hole 7 so as to move parallel to the observation optical axis O of the mirror body 1.
A guide groove 8 communicating with the guide hole 7 is provided on the peripheral wall of the guide body member 5. The guide groove 8 is composed of a straight portion 8a formed in parallel with the guide hole 7 and a bent portion 8b which is continuously bent at the upper end thereof, and the guide hole 7 is attached to the operating shaft 6. Guide the protruding guide pin 9. The operating shaft 6 is suspended by connecting its upper end to the lower end of a spring 7a provided in the upper end of the guide hole 7. The upper end of the spring 7a is connected to the guide body member 5.

A connector 11 is provided at the lower end of the operating shaft 6 as the operating portion. A screw portion 1 for detachably attaching a fastening ring 12 to the outer periphery of the connector 11.
3 is formed. The arm 1 is attached to the lower end of the connector 11.
An engaging V groove 14 is provided for detachably connecting the five.

The upper end of the arm 15 has the fastening ring 1
The arm 15 is provided with a T-shaped rod 16 that fits into the V groove 14 of the connector 11 and engages with it. Then, when the T-shaped rod 16 is fitted into the V groove 14 and the fastening ring 12 is screwed into the connector 11, the arm 15 can be connected to the operation shaft 6. At this time, the operation shaft 6 and the arm 15 are connected in a linear state.

A support arm 17 is connected to the lower end of the arm 15 via a torque limiter 10. The support arm 17 projects in a direction perpendicular to the arm 15, and a support bowl 18 for holding the above-described ultrasonic probe 3 is attached to the tip of the support arm 17.

The ultrasonic probe 3 is a probe in an ultrasonic diagnostic apparatus (not shown) and is a sector type ultrasonic probe. The tomographic image obtained by this ultrasonic probe 3 is observed by a monitor of an ultrasonic tomographic apparatus (not shown).

As described above, the connector 1 of the operating shaft 6
When the arm 15 is connected to the mirror 1, the V-shaped groove 14 and the T-shaped rod 16 are engaged with each other, as shown in FIG.
The observation optical axis O and the vertical direction of the ultrasonic probe 3 are positioned and arranged in parallel with each other.

Normally, the operating shaft 6 is biased by a spring 7a so as to be pulled upward, so that the operating shaft 6
Is in a raised position. At this time, since the guide pin 9 is located at the point Q of the bent portion 8b of the guide groove 8, the operation shaft 6 is rotated and the ultrasonic probe 3 held by the arm 15 It rises, rotates, and retreats to the position of Q ′ shown in FIG. That is, normally, the ultrasonic probe 3 is retracted from the observation position of the surgical microscope and is positioned so as not to obstruct the observation of the surgical site or the like by the surgical microscope.

Here, considering the operation of the target head in neurosurgery, when the operator completes the craniotomy during the operation and obtains a tomographic image at the operation site, the scope 1 of the surgical microscope is used. With the position kept as it is, the operation portion of the operation shaft 6, for example, the portion protruding to the outside of the guide pin 9 is manually guided by the guide groove 8
And slide it downward along the line to position it at point P shown in FIG. At this time, a cotton piece or the like containing physiological saline is placed in advance on the surgical site, and it is lowered to the position of point P ′ where the tip of the ultrasonic probe 3 comes into contact with the upper surface thereof. With the ultrasonic probe 3 positioned at P ', a tomographic image of the surgical site is obtained by the ultrasonic tomography apparatus. The surgeon observes it. At this time, since the ultrasonic probe 3 coincides with the observation direction of the microscope body 1 of the surgical microscope, a tomographic image in the observation direction of the microscope body 1 of the surgical microscope is obtained. That is, desired auxiliary observation can be performed from the observation position of the surgical microscope.

Further, since the torque limiter 10 is provided at the connecting portion between the support arm 18 and the arm 15 for supporting the ultrasonic probe 3, when the ultrasonic probe 3 is pressed against the surgical site, a pressure higher than a certain level is applied. When the ultrasonic probe 3 is applied to the ultrasonic probe 3, the ultrasonic probe 3 escapes in the direction of the arrow S shown in FIG.

With such a configuration, it is possible to easily
In addition, a tomographic image along the observation direction of the surgical microscope can be obtained, so that not only the state of the surgical site can be checked more accurately and quickly during the operation, but also the post-operation can be easily and accurately checked.
Moreover, since the arm 15 supporting the ultrasonic probe 3 including the ultrasonic probe 3 can be easily removed from the mirror body 1, sterilization and other treatments can be easily performed. Furthermore, the ultrasonic probe 3
When the use of the ultrasonic probe 3 is unnecessary, the ultrasonic probe 3 can be easily detached, and they do not become an obstacle during the operation. Basically, when not in use, the surgery is not disturbed by flipping it up towards the bottom of the scope. Further, the torque limiter 10 can prevent the tissue from being damaged due to excessive pressure even when the ultrasonic probe 3 is brought into contact with the surgical site, which is highly safe.

Next, a modified example of the surgical microscope apparatus will be described with reference to FIGS. 2 and 3. This surgical microscope apparatus is one in which an auxiliary observation means is configured using a mirror. In the figure, reference numeral 21 denotes a mirror body of a surgical microscope apparatus. This mirror body 21 is a stereoscopic microscope which is a part of the surgical microscope as in the case of the first embodiment described above. It has an objective lens 23 with a hole 22 formed in its part, and the hole 2 faces the objective lens 23.
The left and right observation optical systems having the observation optical axes OL and OR which are symmetrically positioned with respect to 2 are provided. The operator can perform stereoscopic observation of the surgical site by observing each with the left and right eyes through the left and right observation optical systems.

A mirror operating mechanism (position adjusting means) is incorporated in the mirror body 21. This mirror operating mechanism has a support shaft 24 that is rotatably supported by a rack 23a that is guided only in the vertical direction in a non-rotating state by guide means (not shown). The support shaft 24 holds the rack 23a. Move up and down together. An intermediate gear 25 axially supported by a shaft fixed to the mirror body 21 meshes with the rack 23a, and an advancing / retreating drive gear 26 meshes with the intermediate gear 25. The advancing / retreating drive gear 26 is also pivotally supported by a shaft fixed to the mirror body 21. The shaft 27 of the forward / backward drive gear 26 has a mirror body 21
The advancing / retreating handle 28 exposed to the outside is connected,
By rotating the advancing / retreating handle 28, the rack 23a can be moved up and down together with the support shaft 24 via the advancing / retreating drive gear 26 and the intermediate gear 25.

An outer peripheral spline-shaped gear 31 is formed on the upper end portion of the support shaft 24, and the intermediate gear 3 axially supported by the shaft fixed to the mirror body 21 is formed on the gear 31.
The rotary drive gear 33 is meshed with the shaft 2 through the shaft 2. A rotary dial 35, which has a peripheral portion exposed to the outside of the mirror body 21, is connected to the shaft of the rotary drive gear 33. This rotary dial 3
By rotating 5 the rotary shaft 5 and the support shaft 24 can be rotated together with the gear 31 via the intermediate gear 32.

Further, at the lower end of the support shaft 24, a male screw part 36 formed at the upper end of the mirror support arm 36 is formed.
A female thread portion 37 into which a is screwed in and an abutment rib 38 are formed, and the mirror support arm 36 is detachably connected to the support shaft 24. The mirror support arm 36 is linearly connected to the support shaft 24. Then, a micro mirror 39 is attached to the lower end of the mirror support arm 36 to take in the reflected light of the site located on the side of the surgical site into the mirror body 21 through the objective lens 23.

In this structure, the advance / retreat handle 28
By turning, the mirror support arm 36 holding the micro mirror 39 can be moved up and down together with the support shaft 24 in the direction of arrow E shown in FIG. Further, by rotating the rotary dial 35, the micro mirror 39 together with the support shaft 24 and the mirror support arm 36 can be rotated in the direction around the axis of the arrow F shown in FIG.

Thus, when the operator observes the observation blind spots on the surgical microscope such as the side wall of the surgical site formed in the shape of a hole as shown in FIG. 3, the micro mirror 39 is turned by turning the forward / backward handle 28. Let it descend. Then, the mirror position is adjusted while observing the mirror through the mirror body 21 of the surgical microscope. Regarding the direction to observe with the micro mirror 39, while confirming the mirror position, the rotary dial 35
By turning, the micromirror 39 can be rotated and adjusted. By position adjustment by both these operations,
Through the micro mirror 39, the observation blind spot of the surgical site can be simultaneously observed in a desired state from the observation position of the surgical microscope while the observation state of the mirror body 21 is maintained.

With such a configuration, it is not necessary to take an eye off the surgical microscope during an operation of inserting a mirror or the like, and the blind spot can be easily and safely observed under the surgical microscope.

Further, it is also possible to adopt a configuration in which the one here and the one of the above-mentioned surgical microscope are combined.
A shaft for supporting and operating the probe in the surgical microscope described above, and a switch for detecting when each of the support shafts is at the upper end position are provided to move the shaft or the support shaft (lowering operation). ) Is detected and the signal is used to prohibit electric operations such as movement of the body and focusing, there is a risk of accidentally damaging the surgical site by the probe or mirror. It will be eliminated and safety will be further improved.

Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 4 schematically shows the overall configuration of the surgical microscope apparatus of this embodiment, and a gantry 40 containing a power source unit (not shown) is provided with an arm mechanism 42 for supporting the microscope 41. The arm mechanism 42 allows the microscope 41 to be moved three-dimensionally.

The arm mechanism 42 includes a first shaft 43 provided on the gantry 40 and a first shaft 43 connected to the first shaft 43.
The arm 44 and the second shaft 4 provided at the other end of the first arm 44
5, a third shaft 46 provided at the other end of the second shaft 45, and a second arm 47 pivotally provided around the third shaft 46.
A suspension part 48 connected to the second arm 47, a fourth shaft 49 connected to the suspension part 48, and a fifth shaft 50 provided at the other end of the fourth shaft 49. The above-described microscope 41 is attached to the fifth shaft 50 via the focusing part.

The first shaft 43, the second shaft 45 and the fourth shaft 4
Reference numeral 9 is rotatable about a vertical axis, whereby positioning of the microscope 41 in the rotation direction on a horizontal plane is performed. Further, the third shaft 46 and the fifth shaft 50 are rotatable about a horizontal axis, and thereby the microscope 41 is positioned in the vertical direction and the elevation angle direction. Therefore, the microscope 41 includes a first axis 43, a second axis 45, a third axis 46, and a fourth axis.
The joints of the shaft 49 and the fifth shaft 50 and the movable portion of the arm mechanism 42 configured by the first arm 44, the second arm 47, and the hanging portion 48 are arranged at arbitrary positions in three dimensions, and The optical axis can be set in any direction.

On the other hand, the first shaft 43, the second shaft 45, and the third shaft 4
6, encoders 51, 52, 53, 54, 55 capable of detecting the rotation amount and rotation direction of each of the fourth shaft 49 and the fifth shaft 50 are provided correspondingly. There is. Further, the focusing unit of the microscope 41 is provided with detection means 56 capable of detecting the amount of movement of the microscope 41 in the optical axis direction by the focusing unit. Each of the encoders 51 to 55 and the detecting means 56 is connected to a position detecting section 57 described later with reference to FIG.

The position detecting section 57 is connected to a calculating section 74 which calculates according to a signal input from the operation circuit 71 and outputs the result. Then, the position detecting unit 57 calculates the position of P1 which is the operation part of the patient M1 on the bed as the displacement from a certain reference point.

Further, as shown in FIGS. 4 and 5, the ultrasonic tomographic apparatus 73 is provided with an ultrasonic probe 58 which is operated by the operator during the operation, and the upper end portion of the grip portion of the ultrasonic probe 58 is provided. An inclination sensor 59 for determining the posture is provided. The tilt sensor 59 detects tilts in the X and Y directions with X in the horizontal plane tomographic image direction. The output of the tilt sensor 59 is transmitted to the circuit section of the ultrasonic tomography apparatus 73 through the cable 60. In this example,
It was set so that it would be a tomographic image in the horizontal direction (X) of the surgical site,
There is no problem in setting the Y direction.

Next, the structure of the optical system of the microscope 41 will be described with reference to FIG. The left and right eyepiece optical systems 62a and 62b are opposed to the single objective lens 61. The left and right eyepiece optical systems 62a and 62b are eyepieces 63a and 63b and prisms 64a and 64 for the operator to observe the operation part.
b, relay lenses 65a and 65b, beam splitter 6
6a and 66b, and variable power systems 67a and 67b, respectively. The beam splitter 67a on the left side guides the display information of the posture to be described later to the eyepiece 63a on the left side, and the beam splitter 66b on the right side is for recording an image in the operation site or for providing an observation image to an assistant. Is. Therefore, the beam splitters 66a and 66b are provided at positions where the light flux is afocal.

Reference numeral 68 is a diaphragm provided between the beam splitter 66a and the variable power system 67a, and has a drive unit (not shown). In addition, the beam splitter 66 on the left side
A lens 70a and a mirror 70 are provided on the incident optical path of a in order to guide an image to the liquid crystal display 69 and the afocal system.
b is provided.

Further, these electric systems are constructed as shown in FIG. That is, it has an operation switch 72 as an operation means for obtaining an ultrasonic tomographic image, and this operation switch 72 is provided with two switches for position adjustment and tomographic image although not shown. In addition, the operation switch 72
Is connected to the aforementioned operation circuit 71 so as to input the two kinds of operation signals. In addition, the operation circuit 71 includes a position detector 57, an ultrasonic tomography device 73, and a calculator 7.
4, connected to them to output a signal to the superimpose circuit 76. Further, the position detecting unit 57 uses the position adjusting signal from the operation circuit 71 to calculate only the inclination data of the optical axis of the observation position information of the microscope 41.
It has an interface circuit (not shown) for outputting to.

In the ultrasonic tomography apparatus 73, the operation circuit 7
The tilt detection value from the tilt sensor 59 is calculated and output to the calculation unit 74 according to the position adjustment signal according to No. 1, and similarly, the tomographic image obtained by emitting and receiving the ultrasonic sensor by the probe 58 is superimposed by the tomographic signal. Pause circuit 76
Output to. The calculation unit 74 has a comparison calculation circuit (not shown) for comparing the tilt data of the observation optical axis by the position detection unit 57 and the tilt detection value from the ultrasonic tomography apparatus 73, and according to the output data, the comparison calculation circuit shown in FIG. ) A signal is output to the display circuit 75 so as to obtain a tilted display image as shown in FIG. That is, the tilt display image by the display circuit 75 is output to the liquid crystal display 69 according to the position adjustment signal from the operation circuit 71, while the tomographic image image from the ultrasonic tomographic apparatus 73 is displayed by the display circuit 75 by the tomographic signal. The tilted display image is reduced in size and an image superimposed on a part is output in the same manner. Further, the superimposing circuit 76 has a drive circuit (not shown) for outputting an output to close the diaphragm 68.

With this configuration, the patient M1
The operating part P1 of the first to fifth axes 43, 45, 46, 49,
The position of the observation point P1 from the set reference point is calculated based on the position information of the encoders 51 to 55 provided in 50 and the detection unit 56 in the focusing part of the microscope 41. The position detection unit 57 obtains tilt data of the mirror body portion of the microscope 41 indicating the observation direction at this time.

Now, the operator tries to obtain a tomographic image of the surgical site while holding the probe 58 by hand, confirms the portion of the probe 58 positioned at the surgical site with the microscope 41, and holds the probe 58. It is assumed that the position adjustment switch of the operation switch 72 is pressed with. In the operation circuit 71, the position adjustment signal is then sent to the position detection unit 57, the calculation unit 74, the ultrasonic tomography device 7
3. Output to all superimposing circuits 76.

Then, the calculation unit 74 compares the tilt data output from the position detection unit 57 at this time with the tilt detection value by the tilt sensor 59 of the probe 58 from the ultrasonic tomography device 73, and the calculation result is obtained. Display circuit 7
Image at 5. Also, the superimposing circuit 76
And then output to the liquid crystal display 69, as shown in FIG.
The display is as shown in. The image A displaying this inclination is incident on the beam splitter 66a via the lens 70a and the mirror 70b and is superimposed on the observation image passing through the variable power system 67a. , The operator observes with the left eye. The image A displayed on the liquid crystal display 69 at this time is displayed in the tomographic image screen shown in FIG.

The display of the image A in this case shows a shift in the left-right direction, and in short, the microscope 41 and the probe 58.
Of the inclinations, there is no deviation only in the left and right direction is the J line, and as the deviation becomes larger, lines such as K and L are displayed. While observing this display, the operator accurately adjusts the positioning of the probe 58 at the observation position of the surgical microscope 41.

At this time, when the tomographic image switch of the operating switch 72 is pressed, the operating circuit 71 receives this signal and outputs a tomographic signal to the superimposing circuit 76 and the ultrasonic tomographic apparatus 73. In the superimposing circuit 76, the tomographic image from the ultrasonic tomographic apparatus 73 is shown in FIG.
As shown in FIG. 11, an image superimposed by using the display image A from the display circuit 75 as a position display is displayed on the liquid crystal display 69 in the tomographic image screen B. further,
At this time, the aperture 68 is closed via the drive section by a drive circuit (not shown) provided in the superimpose circuit 76. Therefore, only the display of FIG. 5 (c) is presented to the operator instead of the microscope image of the operated portion.

Thus, the probe 58 of the ultrasonic diagnostic apparatus
Can be easily positioned under the observation of the microscope 41, and information such as a tomographic image is displayed in the observation field of the microscope 41 as it is, so that the operator can grasp the accurate situation up to the deep part of the surgical site as it is. Become. During the operation, the information on the deep part in the necessary direction can be obtained easily, and a safer and more reliable operation can be realized. It should be noted that comparison with a CT image before surgery can be easily performed.

Further, in this embodiment, since there is no frame for positioning or the like, there is no effect even when it is not used, the operation space of the operation site is secured, and smooth operation is achieved from this aspect as well. Leads to the progression of. By retracting the probe 58 from the observation position of the surgical microscope, it is possible to perform observation only with the surgical microscope.

Considering a combination of the microscope of this embodiment with the first embodiment described above, it is clear that more accurate position information for the tomographic image can be obtained. , Omit the detailed explanation here.

Next, another embodiment of the present invention shown in FIGS. 8 and 9 will be described. This embodiment is obtained by adding a part of the configuration to the above-mentioned embodiment. This embodiment is the same as the previous embodiment except for the following description, and therefore detailed description thereof is omitted here.

The microscope 81 here is a stereoscopic microscope having a left and right observation optical paths and a single objective lens 82, and a mirror 83 is provided on the central optical axis of the objective lens 82. ing. On the optical path bent by the mirror 83, an LED 84 that emits visible light and a lens 85 are provided to collimate the light and project it as a spot through the mirror 83.

The upper surface of the tilt sensor 59 located above the probe 58 is a plane orthogonal to the central axis of the tilt sensor 59, and a display (not shown) indicating the center is attached to the central position of the tilt sensor 59. There is. Even in the electrical system block of this embodiment, it is assumed that an LED drive circuit (not shown) that lights the LED 84 according to the position adjustment signal for the tomographic image is added.

Then, as in the case of the previous embodiment, during the operation,
When the operator tries to obtain a tomographic image, first, the probe 58
It becomes necessary to adjust the position of the LE.
The LED 84 is turned on by the D drive circuit, the lens 85,
The mirror 83 projects a spot of parallel light on the central optical axis of the objective lens 82. By aligning the center with the center position display on the upper surface of the tilt sensor 59 of the probe 58, the operator can easily position the probe 58 under the observation of the microscope 81. After that, a tomographic image can be obtained in the same manner as in the third embodiment.

With such a structure, the operator can adjust the probe position under the microscope more accurately, easily and quickly. Since the number of operations for obtaining an ultrasonic tomographic image is smaller and the time required is shorter, the burden on the operator is reduced and the operation time is shortened.

[0055]

As described above, according to the present invention, it becomes possible to obtain the relative position between the observation optical axis of the optical observation means and the ultrasonic tomographic image, and the micro-server using the optical observation means can be obtained. It is possible to provide an observation device capable of obtaining an ultrasonic tomographic image suitable for jarring.

[Brief description of drawings]

FIG. 1A is a side view showing a schematic configuration in the vicinity of a body portion of a surgical microscope apparatus, and FIG. 1B is a perspective view showing a configuration of an ultrasonic probe supporting and operating device section thereof.

FIG. 2 is a plan cross-sectional view of a mirror portion in another surgical microscope apparatus.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a perspective view of a surgical microscope apparatus according to an embodiment of the present invention.

5A is a side view of the ultrasonic probe in the embodiment, FIG. 5B is an explanatory view of a tilted display image, and FIG. 5C is an explanatory view of an ultrasonic tomographic image.

FIG. 6 is an explanatory diagram showing a configuration of an optical system of a surgical microscope apparatus according to another embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of an electric circuit of a surgical microscope apparatus according to another embodiment of the present invention.

FIG. 8 is a side view showing a schematic configuration in the vicinity of a mirror section of a surgical microscope apparatus according to still another embodiment of the present invention.

9 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

41 ... Microscope, 51-55 ... Encoder, 56 ... Detecting means, 57 ... Position detecting part, 58 ... Ultrasonic probe, 59 ...
Inclination sensor.

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Claims (2)

[Claims] 1. An optical observation unit having an observation optical axis for observing an object, an ultrasonic probe for obtaining an ultrasonic tomographic image of the object, and a first unit capable of detecting positional information of the optical observation unit. No. 1 detection means, second detection means capable of detecting positional information of the ultrasonic probe, and observation light of the optical observation means based on the detection results of the first detection means and the second detection means. Calculating means for calculating the relative position of the axis and the ultrasonic tomographic image,
An observing device comprising: 2. The observation apparatus according to claim 1, wherein the first detection means is connected to the optical observation means, and the second detection means is provided on the ultrasonic probe.