JPH06331897A - Operation microscope - Google Patents

Abstract

PURPOSE:To provide an operation microscope in which microscopic body can be smoothly and accurately operated by displaying the start of moving the body in advance. CONSTITUTION:A nearly cylindrical male screw part 118 having an insertion part 112 for inserting a microscope for an assistant is tightened in the microscopic body M, and a 1st electric contact 119 connected to a control part is provided on its 1st abutting surface 113. In the microscope for an assistant 111, a 2nd electric contact 120 capable of coming in contact with the 1st electric contact is provided on a 2nd abutting surface 115 faced to the 1st abutting surface. The 2nd electric contact is connected to a display device within visual field of the microscope for an assistant. A liquid crystal driving part and liquid crystal driven and controlled by the liquid crystal driving part are provided in the display device within visual field of the microscope for an assistant. The liquid crystal display part is constituted so that the liquid crystal can be driven and controlled based on an electric signal outputted from the control part, and the liquid crystal is arranged at an optical image-formation position of the microscope for an assistant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical microscope which can be observed by an operator and an assistant at the same time.

[0002]

2. Description of the Related Art In recent years, when performing fine surgery, microsurgery is performed while observing with a surgical microscope.
The Jerry method has been widely used, and a higher-performance surgical microscope is required.

When performing such an operation, an assistant's microscope is attached to the surgical microscope body in order to make the assistant or a visiting student or the like disclose the operation section. Further, in the field of neurosurgery, easiness and strictness of positioning of the body portion are required, and there is a demand for minimizing the time required for frequently changing the observation angle during the operation. That is, the body portion of the surgical microscope must be able to be positioned quickly and accurately at a desired position in the working space. For this reason, by providing an electromagnetic lock on each joint that gives the mount that holds the mirror body a degree of freedom, and by using the weight or spring force that balances the weight of the mirror body, the mirror body is as if it floats in the air. It is attached to the pedestal as if it were The movement of the mirror body is controlled by operating the switch of the electromagnetic lock provided on the mirror body operation handle.

Hereinafter, a surgical microscope in which each joint is provided with an electromagnetic lock will be described with reference to FIG. As shown in FIG. 9, BL ₁ , BL ₂ , BL ₃ , BL ₄ , BL ₅ ,
BL ₆ (hereinafter referred to as BL _n ) is a single-axis braking bearing having a built-in non-excitation type electromagnetic lock and an operating disk that can be locked and unlocked by the lock. These are operated by operating a switch (not shown) of the electromagnetic lock provided on the operation handle Hm of the microscope microscope body M of the binocular.
_It can be unlocked or locked. Specifically, when the electromagnetic lock BL _{n is} unlocked, each support rod can freely rotate around each rotation shaft described later. On the other hand, when each electromagnetic lock is locked, each rotary shaft is fixed.

That is, the braking bearing BL ₁ supported on the free end of the column 4 which can be moved up and down in the direction of the arrow Po in the figure rotates the first support rod 5 around the vertical axis A ₁ in the direction of the arrow P _1. It is configured to be movable. The braking bearing BL ₂ incorporated across the braking bearing BL ₁ is configured to be capable of reciprocating the first support rod 5 around the horizontal axis A ₂ orthogonal to the vertical axis A ₁ in the direction of arrow P _2. Has been done. At one end of the first support rod 5,
A balance weight Ga is attached movably in the direction of arrow Pa in the figure, and a braking bearing BL ₃ is attached to the other end.

The braking bearing BL ₃ is constructed so as to be capable of reciprocating in a swiveling direction in the direction of arrow P ₃ about an axis A _{3 in} which the second support rod 6 is arranged in parallel with the axis A ₂ . When the adjustment angle (γ) of the second support rod 6 is changed, the braking bearing BL ₄ is braked so that the second support rod 6 can rotate about a horizontal axis A ₄ orthogonal to the axis A _3. It is arranged beside the bearing BL ₃ .

A balance weight Gb is attached to one end of the second support rod 6 so as to be movable in the direction of the arrow Pb in the figure, and a braking bearing BL ₅ is attached to the other end.
In this braking bearing BL ₅ , a link a ₁ forming a parallel link mechanism P is connected to another link a around an axis A ₅ which is orthogonal to the axis A _4.
2 , a ₃ , a ₄ , and a ₅ are configured to be turned within the range of the angle α.

A braking bearing BL ₆ is attached to the axially protruding portion of the parallel link mechanism P, and the third bearing rod 7 supporting the microscope body M is attached to the braking bearing BL _6. Is rotatably held. As a result, the third
By rotating the support rod 7 of the
Is configured to be rotatable around the axis A ₆ within a range of an angle β.

With such a configuration, the orientation of the microscope mirror body M can be arbitrarily set by adjusting the three independent angles γ, α and β. Further, braking is performed by the pivotal movement of the column 4 about the vertical axis A _1, the pivotal movement of the first support rod 5 about the horizontal axis A ₂ , and the pivotal movement of the second support rod 6 about the horizontal axis A _3. The position of the bearing BL ₅ can be adjusted three-dimensionally.

By the way, it is said that if the electromagnetic lock provided on each joint is made to be free when performing the fine movement of the mirror body, the fine movement operation of the body becomes difficult because the operation force of the body is too light. There's a problem.

In order to solve this problem, for example, Japanese Patent Publication No.
Japanese Patent Publication No. 5-36116 discloses a device in which a switch button of an electromagnetic lock is configured in two stages. That is, in the first step of pushing the switch button, after positioning the microscope body part, all locked electromagnetic pulse locking pulse currents are supplied, and the electromagnetic locking is released intermittently. Fine adjustment of the mirror part is performed. Furthermore,
In the second stage when the switch button is completely pushed in,
By continuously supplying an electric current to the electromagnetic lock and completely releasing the electromagnetic lock, positioning of the microscope body in the free state is performed.

[0012]

If the operator suddenly changes the observation direction or position of the microscope microscope body, the assistant who is observing through the assistant microscope must change the position of the microscope microscope body. Since it cannot be confirmed, there is a problem that the movement of the microscope body cannot be followed. In this case, it hinders the smooth operation of the microscope body by the operator.

Further, in the case of performing fine movement of the microscope body, in the switch configuration as disclosed in the above publication, the electromagnetic lock may be completely released by an erroneous operation and the microscope body may be put into a free state. . In such a free state, the balance of the microscope body attached to the pedestal is changed by the position shift of the weight and the change of the spring elastic force by using the elastic force of the weight and the spring as if they were floating in the air. If collapsed, the mirror body may suddenly rotate or move in an unintended direction or position. In particular, when the operator is performing fine movement operation of the mirror while looking through the eyepiece, the field of view is lost and the operative field is lost, and the operation of the microscope body and thus the operation such as surgery is smoothly performed. There is also a problem that it becomes difficult.

The present invention has been made to eliminate such an adverse effect, and the purpose thereof is to smoothly and highly accurately operate a microscope body by presenting the start of movement of the body in advance. To provide a surgical microscope.

[0015]

In order to achieve such an object, the present invention provides a mirror body portion configured to be able to observe a predetermined portion, and a support for supporting the mirror body portion so as to be movable three-dimensionally. Means and a moving mechanism for three-dimensionally moving the mirror body portion via the supporting means, so that a plurality of observers can simultaneously observe a site observed through the mirror body portion. In the microscope, an operation unit configured to be able to arbitrarily change the observation direction and the observation position of the body through the moving mechanism, and a detection unit that detects the magnitude of the force applied to the operation unit, Based on the detection data detected by the detection means, there is provided a presentation means for presenting the start of movement of the mirror body portion in advance, and a control means for controlling the operation of the movement mechanism.

[0016]

The force applied to the operating portion is detected by the detecting means, and based on the detection data, the movement start of the mirror body portion is presented in advance via the presenting means. Further, the mirror mechanism is three-dimensionally moved through the support means by the moving mechanism that operates based on the detection data.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A surgical microscope according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 5 and 9. The configurations of the gantry and the mirror body in this embodiment are the same as those in the conventional example described with reference to FIG.

FIG. 1 shows a microscope body M and an operating handle H.
The connection configuration with m is shown. The microscope body M is provided with a male screw portion 102 to which a fixture 101 described later can be engaged.
A pedestal 103 having a screw is fastened with a screw 104. The end surface of the male screw portion 102, V grooves 105 are formed X4 at equal intervals, operating handle Hm at the other end rotation are secured to prevent pin having a gripping portion S _m3 at one end 106
Is configured to be engageable with.

The fixture 101 is rotatably attached to the operation handle Hm, and the rotation prevention pin 106 is provided.
The operation handle Hm is configured so as not to come off. A pressure sensor 107 is fixed to the inner peripheral surface of the insertion hole for the operation handle provided in the fixture 101.

The pressure sensor 107 is connected to a control unit 108 (see FIG. 2) provided inside the microscope body M via an electrical contact EL ₁ provided on the pedestal 103.
The control unit 108 includes a central control unit 10 as shown in FIG.
9 and a threshold value storage unit 110.

The central control unit 109 compares the deflection amount signal of the handle Hm input from the pressure sensor 107 via the electrical contact EL ₁ with the deflection amount signal stored in the threshold value storage unit 110. Based on the
1 and presenting means, that is, the display device 123 in the microscope field of view for the assistant
Has a function of outputting a predetermined drive signal.

Further, the threshold value storage unit 110 stores the deflection amount of the steering wheel, which can be judged as the surgeon's attempt to apply a force to move the steering wheel, as a first value, and the surgeon makes an unexpected movement of the mirror body. It has a function of storing a deflection amount of the handle Hm that can be determined to be sufficiently held as a second value.

FIG. 3 shows the structure of the connecting portion between the assistant's microscope 111 and the microscope body M. A substantially cylindrical male screw portion 118 having a microscope insert portion 112 for an assistant is fastened to the microscope body M, and a tip end portion of the male screw portion 118, that is, a portion facing the assistant microscope 111, is
The 1st abutting surface 113 which has the notch part 114 formed in four places at equal intervals in the circumferential direction is comprised.

The first contact surface 113 is provided with four first electrical contacts 119 arranged at equal intervals in the circumferential direction, and the first electrical contacts 119 are provided in the controller 108.
It is connected to the.

The assistant microscope 111 includes a first abutting surface 1
The second abutting surface 115 is formed to face 13
Positioning pins 116 are provided on the second abutting surface 115 at positions that can be inserted into the notches 114. On the second contact surface 115, the second electrical contact 12 is located at a position where it can contact the first electrical contact 119.
0 is provided. This second electrical contact 120 is
It is connected to the display device 123 within the microscope field of view for the assistant.

In addition, the assistant microscope 111 is provided with a fixing ring 117 which can be screwed into the male screw portion 118.
Is rotatably provided. Therefore, the microscope for assistant 1
By screwing the fixing ring 117 rotatably attached to 11 to the male screw portion 118, the assistant's microscope 111 is positioned and fixed to the microscope microscope body M via the assistant's microscope inserting portion 112. Become.

At this time, the first and second contact surfaces 113,
The contact of 115 with each other causes the first and second electrical contacts 119, 120 to contact each other. As a result, as shown in FIG. 4, these electrical contacts 119, 12
The control unit 108 and the assistant microscope field-of-view display device 123 are maintained in a conductive state via 0.

As shown in FIG. 4, the assistant-microscope field-of-view display device 123 is provided with a liquid crystal drive section 121 and a liquid crystal 122 whose drive is controlled by the liquid crystal drive section 121. The liquid crystal drive unit 121 is configured to be able to drive and control the liquid crystal 122 based on the electric signal output from the control unit 108, and the liquid crystal 122 is arranged at the optical image forming position of the assistant's microscope 111. Has been done.

FIG. 5 shows the structure of the power supply unit of the electromagnetic lock drive unit 71. The power supply unit, a variable three-terminal regulator constituting the electromagnetic locking power - and motor 81 is provided, the variable three-terminal regulator - input of data 81 is connected to the power supply V _1, the output side, It is connected to the electromagnetic lock BL _n .

Reference numerals 82, 83, and 84 are resistors that determine the output voltage of the variable 3-terminal regulator 81, and 85 is a relay that is driven based on a signal from the control unit 108. The value of the resistor 82, 83, 84 when relay -OFF, set the power supply voltage, such as an electromagnetic locking BL _n is completely unlocked to be supplied, also when relay -ON, electromagnetic locking BL _n It is set so that a power supply voltage that is semi-fixed, that is, a power supply voltage that is about half the power supply voltage that completely unlocks is supplied.

The operation of this embodiment will be described below.
If you want to change the observation direction of the microscope lens body M during surgery, the surgeon begins to apply force to the grip portion S _m3, operating handle Hm flexes slightly. The pressure sensor 107 detects the deflection amount of the operation handle Hm, converts it into an electric signal corresponding to the deflection amount, and transmits it to the control unit 108.

Central control unit 1 provided in the control unit 108
In 09, the magnitude of the transmitted ability is determined by the threshold storage unit 1
When the first value stored in advance in 10 is reached, a driving signal is output to the assistant microscope field-of-view display device 123 so as to display in the field of view, and the electromagnetic lock BL is supplied to the electromagnetic lock drive unit 71. _The drive signal is output so that _n is semi-fixed.

Upon receiving the signal, the liquid crystal drive section 121 of the assistant's microscope field-of-view display device 123 displays "Caution" on the screen of the liquid crystal 122. After 3 seconds from the start of display, the control unit 108 issues a signal to the liquid crystal drive unit 121 to end the display within the visual field. Further, the electromagnetic lock driver 71 which has received the signal supplies a power supply voltage to the electromagnetic lock BL _{n so} that the lock is semi-fixed, based on the ON operation of the relay 85.

Further, when the operator applies a force to the operating handle Hm via the grip S _m3 , the amount of force detected by the pressure sensor 107 is stored in the threshold value storage unit 110 in advance by the central control unit 109. When it is determined to have reached the second force, which is a signal to unlock the electromagnetic locking BL _n is issued from the control unit 108 to the electromagnetic locking drive unit 71.

At this time, the electromagnetic lock driving unit 71 is operated by the relay.
To unlock the electromagnetic locking BL _n based on 85 the OFF operation. As a result, the operator can freely move the microscope microscope body M.

When the operator loosens the force applied to the operating handle Hm, the signal from the control unit 108 is interrupted, the electromagnetic lock BL _n is locked again, and the movement of the microscope body M is fixed. According to the present embodiment, the amount of force by which the operator starts applying force to the operation handle Hm in an attempt to move the body by one sensor and the amount of force by which the operator can sufficiently hold the abrupt movement of the body are set. Since it can be detected, simplification and miniaturization of the device are achieved. Further, since the start of movement of the microscope body M is displayed in the liquid crystal display in advance in the field of view of the assistant's microscope, the assistant can continue the microscope observation until just before the movement of the microscope body. Further, since the electromagnetic lock is unlocked in two steps from the semi-fixed state to the unlocked state, it is possible to prevent sudden movement after the switch is turned on even when the balance of the mirror body is unbalanced. Therefore, the field of view is not lost and the object is not lost.

Next, a surgical microscope according to the second embodiment of the present invention will be described with reference to FIGS. 6, 7 and 9. As shown in FIG. 6, in this embodiment, the operation handle H
Another pressure sensor 224 is provided on the gripping portion S _{m3 of} m.

Pressure Sensor-107 and Other Pressure Sensors-2
24 can output an electric signal according to the amount of deflection to the control unit 108 (see FIGS. 2 and 4) provided inside the microscope body M via the electrical contact EL ₁ (see FIG. 1). Is configured. As described above, the control unit 108 includes the electromagnetic lock driving unit 71 (see FIG. 2) and the assistant microscope 111 (
(See FIG. 3) is electrically connected to a shutter driving unit (not shown) provided in FIG.

A shutter-225 that opens and closes mechanically is provided at the optical image forming position of the assistant's microscope 111, and based on a signal output from the controller 108, an assistant via the shutter driver. The optical path of the observation microscope 111 is configured to be shielded.

FIG. 7 shows a power supply circuit of the electromagnetic locking drive unit 71 applied to this embodiment. Electromagnetic lock BL _n
Has one end connected to the power supply V ₁ and the other end connected to the emitter of the PNP transistor Q ₁ . Transistor Q ₁
The collector to the ground, base - scan the diode - de D ₁ of the anode - de, diode - cathode of de D ₂ - de, is further connected to the resistor R _1. The cathode of the diode D ₁ is the power source V ₁
It is connected to the. The diodes D ₂ and R ₁ are connected in parallel. The anode of the diode D ₂ is connected to the variable resistor VR ₂ having the other end connected to the power source V ₁ , and the resistor R ₁ and the capacitor C ₁ having the other end connected to the ground.
A switch S connected to the positive electrode side of the switch S and having the other end turned ON / OFF based on a signal output from the control unit 108.
_It is connected to the variable resistor VR ₁ connected to ₁ .

The operation of this embodiment will be described below. When the operator changes the observation direction of the microscope lens body M during surgery, when gripping the gripping portion S _m3, other pressure sensors -224 convey the force to the control unit 108. Based on the signal, the control unit 108 outputs a signal to the shutter-driving unit so as to close the observation optical path. By thus hindering the observation by the assistant's microscope 111, it becomes possible to notify the assistant in advance of a change in the observation direction of the microscope microscope body M by the operator.

The operator holds the microscope microscope body M on the hand holding the grip S _m3.
The addition of further force to move the, pressure sensor -107 operates flexed operation handle H _m, signal so as to unlock the electromagnetic locking BL _n is transmitted from the control unit 108.

Transistor Q _{1 of} electromagnetic lock drive circuit 71
The base potential of is lowered by the charge flowing out of the capacitor C ₁ . As a result, the transistor Q ₁ starts to be turned on gradually, and the current gradually flows into the electromagnetic lock B _n . As a result, the electromagnetic lock BL _n gradually shifts from the fixed state to the unlocked state, so that the operator can freely change the observation direction of the endoscope.

When the operator releases his hand from the grip S _m3 , the shutter-225 is opened, the electromagnetic lock BL _n is locked, and the movement of the microscope body M is fixed. At this time, the variable resistor VR ₁
The flow of the current from the ground to the ground is stopped, and the electric charge is gradually accumulated in the capacitor C ₁ via the variable resistor VR ₂ .

[0045] Along with this transistor Q ₁ base - the ground potential is increased, because gradually transistor Q ₁ is turned off, current through the electromagnetic locking BL _n is decreased, the electromagnetic locking B
L _n is gradually fixed. Further, the time from the fixed state to the open state is changed by changing the value of the variable resistor VR ₁ , and the time from the open state to the fixed state is changed by changing the value of the variable resistor VR ₂ .

According to this embodiment, by closing the observation optical path of the assistant's microscope when the grip _Sm3 is touched by the hand, the assistant can be notified in advance of the start of movement of the microscope body. Further, pressure sensors -224 to close the observation optical path of the assistant's microscope, since provided to the grip portion S _m3 of separate operating handle Hm the pressure sensor -107 for performing ON / OFF of the electromagnetic locking , It becomes unnecessary to set the threshold value of the sensor.

The same sensor is used in the first embodiment.
Because the difference between the force of the first and second threshold for that use is small, and that the operator has started applying a force to the grip portion S _m3, operator gripping portion S _m3 with enough force It was difficult to distinguish what was held, but two different sensors were used in this example.
Is applied, the above distinction is facilitated.

Further, as compared with the first embodiment, the time from when the assistant recognizes the movement of the microscope microscope body in advance to when the electromagnetic lock is unlocked is the time when the operator touches the grip to move the microscope body. Since the assistant has time to apply force in the moving direction, the assistant can deal with the movement of the microscope body in time.

Furthermore, since the electromagnetic lock is gradually released, the mirror body does not suddenly move after the switch is turned on.
For this reason, the movement of the mirror body is facilitated, and it is possible to prevent the visual field from suddenly disappearing and losing sight of the object.

Further, since the time required for opening and the time required for fixing can be adjusted, the time required for opening and the time required for fixing can be appropriately adjusted according to the operator's request, and the smooth movement of the mirror body can be achieved. Can be achieved.

Although the electromagnetic lock is used in this embodiment, the same effect can be obtained by using a mechanical clutch, for example. Next, a surgical microscope according to a third embodiment of the present invention will be described with reference to FIGS. 2, 4 and 6, 8 and 9.

In this embodiment, the operator touches the gripping portion and the surgeon applies a force to the gripping portion in order to move the mirror body. The constituent operation up to the sending is similar to that of the second embodiment.

FIG. 8 is a rotary shaft of a single-axis brake bearing having the built-in electromagnetic lock shown in FIG. 9 and a braking disc that is lockable and unlockable by the electromagnetic lock. A _n1
The surrounding configuration is shown.

Reference numerals 91 and 92 respectively _denote support rods of the microscope microscope body M for operation, which are freely rotatable about a rotation axis A _n, and electromagnetic chains fixed to both sides of the support rods 92, respectively. It is configured so that it can be locked or unlocked via the locks BL _n1 and BL _n2 .

The electromagnetic lock BL _n1 has a fixing force such that the rotating shaft A _n is in a semi-fixed state, and the BL _n2 has a fixing force so that the rotating shaft A _n is completely fixed. It is electrically connected to the electromagnetic lock driving unit 71.

The mirror body movement transmitting means to the assistant in this embodiment is a buzzer means (not shown) having a built-in power source and is fixed to the exterior of the mirror body M. The buzzer means and the electromagnetic lock driving unit 71 are electrically connected to the control unit 108.

The operation of this embodiment will be described below.
When the observation direction of the microscope microscope body M is changed during the operation, when the operator grips the grip portion S _m3 , an electric signal is output from the pressure sensor 224 to the control unit 108. Control unit 10 that received the signal
The buzzer means is operated via 8, and the buzzer is generated from the buzzer means. By buzzing for a short time,
The assistant can detect the movement of the mirror body in advance.

[0058] At the same time, the electromagnetic locking drive unit 71 from the control unit 108, so as to unlock only the electromagnetic locking BL _n, a predetermined signal is transmitted. As a result, the rotation axis A _n becomes semi-fixed.

[0059] When the surgeon applies force to the operating handle Hm through the grip portion S _m3 to move the microscope body, pressure sensors -1
07 is activated, and a signal is sent from the control unit 108 to unlock the electromagnetic lock BL _n1 . As a result, the operator can freely move the mirror body.

When the operator releases his hand from the grip S _m3 , the electromagnetic locks BL _n1 and BL _n2 are locked and the microscope microscope body M is fixed. According to this embodiment, since the means for transmitting the movement of the mirror body to the assistant is the buzzer means, it is possible to easily and quickly notify the assistant of the movement of the mirror body in advance. Further, since the two electromagnetic locks are used to unlock in two stages, the mirror body does not suddenly start after the switch is turned on.

[0061]

According to the present invention, the presenting means for presenting the start of movement of the mirror body portion in advance based on the detection data detected by the detecting means for detecting the magnitude of the force applied to the operating portion. With the provision, it is possible to provide a surgical microscope capable of smoothly and highly accurately operating a microscope body.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the configuration of a surgical microscope according to a first embodiment of the present invention.

FIG. 2 is a block diagram schematically showing a circuit configuration of a control unit provided in the surgical microscope shown in FIG.

FIG. 3 is a perspective view schematically showing a configuration of a connecting portion between an assistant's microscope and a microscope body in the surgical microscope shown in FIG.

4 is a block diagram showing a circuit configuration between a display device in the field of view of the assistant's microscope and a control unit in the connection relationship between the assistant's microscope and the microscope body shown in FIG. 3;

FIG. 5 is a circuit diagram showing a configuration of a power supply unit of the electromagnetic lock driving unit shown in FIG.

FIG. 6 is a perspective view showing the configuration of a surgical microscope according to a second embodiment of the present invention.

7 is a diagram showing a power supply circuit of an electromagnetic lock drive unit applied to the surgical microscope shown in FIG.

FIG. 8 is a partial cross-sectional view showing only the main configuration of the surgical microscope according to the third embodiment of the present invention.

FIG. 9 is a diagram schematically showing the overall configuration of a surgical microscope.

[Explanation of symbols]

101 ... Fixing tool, 102 ... Male part, 103 ... Pedestal, 1
07 ... Pressure sensor, EL ₁ ... Electrical contact, Hm ... Handle.

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[Procedure amendment]

[Submission date] July 19, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

Further, in the case of performing fine movement of the microscope body, in the switch configuration as disclosed in the above publication, the electromagnetic lock may be completely released by an erroneous operation and the microscope body may be put into a free state. . In such a free state, the balance of the microscope body attached to the pedestal is changed by the position shift of the weight and the change of the spring elastic force by using the elastic force of the weight and the spring as if they were floating in the air. If collapsed, the mirror body may suddenly rotate or move in an unintended direction or position. In particular, when the operator is performing fine movement operation of the mirror while looking through the eyepiece, the field of view will be lost and the operative field will be lost, and the operation of the microscope microscope and eventually the operation such as surgery will be performed smoothly. There is also a problem that it becomes difficult.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0037

[Correction method] Change

[Correction content]

Next, a surgical microscope according to the second embodiment of the present invention will be described with reference to FIGS. 6, 7 and 9. As shown in FIG. 6, in this embodiment, the operation handle H
A second pressure sensor-224 is provided on the gripping portion S _{m3 of} m.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction content]

Pressure sensor 107 and second pressure sensor
Reference numeral 224 denotes a control unit 108 (see FIGS. 2 and 4) provided inside the microscope body M via an electrical contact EL ₁ (see FIG. 1).
It is configured to be able to output an electric signal according to the amount of deflection. As described above, the control unit 108
Electromagnetic lock driver 71 (see FIG. 2) and assistant microscope 111
(See FIG. 3) is electrically connected to a shutter drive unit (not shown).

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0041

[Correction method] Change

[Correction content]

The operation of this embodiment will be described below. When the operator changes the observation direction of the microscope lens body M during surgery, when gripping the gripping portion S _m3, a second pressure sensor -224 convey the force to the control unit 108. Based on the signal, the control unit 108 outputs a signal to the shutter-driving unit so as to close the observation optical path. By thus hindering the observation by the assistant's microscope 111, it becomes possible to notify the assistant in advance of a change in the observation direction of the microscope microscope body M by the operator.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Change

[Correction content]

According to this embodiment, by closing the observation optical path of the assistant's microscope when the grip _Sm3 is touched by the hand, it is possible to notify the assistant in advance of the start of movement of the microscope body. Further, the second pressure sensor 224 for closing the observation optical path of the assistant's microscope is ON / OFF of the electromagnetic lock.
Since is provided to the grip portion S _m3 of separate operating handle Hm the pressure sensor -107 for performing, sensor - threshold settings is not required.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction content]

The same sensor is used in the first embodiment.
If the difference between the force of the first and second threshold for that use is small, and that the operator has started applying a force to the grip portion S _m3, operator gripping portion S _m3 with enough force It was difficult to distinguish what was held, but two different sensors were used in this example.
Is applied, the above distinction is facilitated.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Name of item to be corrected] 0058

[Correction method] Change

[Correction content]

At the same time, a predetermined signal is transmitted from the control unit 108 to the electromagnetic lock driving unit 71 so as to unlock only the electromagnetic lock BL _n2 . As a result, the rotation axis A _n becomes semi-fixed.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0061

[Correction method] Change

[Correction content]

[0061]

According to the present invention, the presenting means for presenting the start of movement of the mirror body portion in advance based on the detection data detected by the detecting means for detecting the magnitude of the force applied to the operating portion. Prepared , and the operator was predetermined
If you do not apply force to the operating handle, the electromagnetic lock on the braking bearing
It does not drive, and the electromagnetic lock gradually or in stages
It is possible to provide a surgical microscope capable of smoothly and highly accurately operating the microscope body by driving so as to unlock .

[Procedure Amendment 9]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

[Correction method] Change

[Correction content]

[Figure 9]

Claims (1)

[Claims] 1. A mirror part configured to allow observation of a predetermined part, a support means for supporting the mirror part so as to be three-dimensionally movable, and the mirror part being three-dimensionally moved through the support means. A surgical microscope comprising a moving mechanism and configured so that a plurality of observers can simultaneously observe a site to be observed through the mirror section, and an observation direction and an observation of the mirror section through the moving mechanism. Based on the detection data detected by the operation unit configured to be able to arbitrarily change the position, the detection unit for detecting the magnitude of the force applied to the operation unit, and the detection data detected by the detection unit, A surgical microscope comprising: a presentation means for presenting the start of movement in advance and a control means for controlling the operation of the movement mechanism.