JP2001108906A - Microscope for surgery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microscope for surgery which can store at least one observation focus positions in observing the anterior segment and eyeground segment of the eye to be examined and can automatically execute focusing on the basis of the stored observation focus positions when observing either of the observation parts thereafter. SOLUTION: A microscope body 8 is vertically moved by activating a vertical direction moving unit 7A in order to respectively observe the anterior segment and eyeground segment of the eye E to be examined and the observation focus position of at least either of the focus position of the anterior segment and the focus position of the eyeground segment is stored in a memory 61. When observing the anterior segment and eyeground segment of the eye thereafter, the changeover of the observation focus positions is executed by the voices of an operator, etc., and the microscope body 8 is moved in the vertical position on the basis of the observation focus positions stored in the memory 61 and the previously stored changeover moving distances, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical microscope for illuminating and observing an eye of a subject such as a patient in diagnosis, treatment, and surgery in ophthalmology.

[0002]

2. Description of the Related Art Conventionally, in diagnosis, treatment and surgery in ophthalmology, an illumination optical system illuminates an eye of a subject such as a patient, and an illuminated eye can be observed by an observation optical system. Microscopes are known.

[0003]

When performing intraocular surgery on a subject's eye using a conventional surgical microscope, the anterior eye part of the subject's eye and the inside of the eye, for example, the surgical site, are observed. . However, when observing the anterior segment of the eye to be examined and the inside of the eye, the observation focus positions are different, so it is necessary to move the microscope body using a fundus observation lens or the like to perform focusing, and this must be manually performed. Since it takes time to perform the procedure, there is a problem that the intraocular surgery on the subject's eye cannot be performed quickly.

The present invention has been made in view of the above circumstances, and an object of the present invention is to store at least one observation focus position when observing the anterior segment of the eye to be examined and the inside of the eye. An object of the present invention is to provide a surgical microscope capable of automatically switching focus based on a stored observation focus position when observing such an observation site.

[0005]

In order to solve the above-mentioned problems, an invention according to claim 1 is a surgical microscope having a microscope main body for observing an anterior segment of an eye to be examined and the inside of the eye. Storage means for storing at least one observation focus position when observing the anterior eye and the inside of the eye; switching means for switching between observation of the anterior eye and the inside of the eye; and movement of the microscope body for moving the microscope body Means, and control means for controlling the operation of the microscope main body moving means based on the observation focus position stored in the storage means in response to switching of the observation of the anterior eye or the inside of the eye by the switching means. It is characterized by having.

[0006] In the surgical microscope according to the first aspect of the present invention, in the second aspect of the present invention, the switching means may include a voice for inputting a voice indicating that the anterior eye or the inside of the eye is to be observed. Input means, and voice recognition means for recognizing the voice input by the voice input means, wherein the control means sets an observation focus position stored in the storage means in accordance with a recognition result of the voice recognition means. The operation of the microscope main body moving means is controlled on the basis thereof.

In the surgical microscope according to the first aspect of the present invention, the switching means may include an intraocular observation lens for observing the inside of the eye. Determination means for determining whether or not there is, the control means, according to the determination result of the determination means,
The operation of the microscope main body moving means is controlled based on the observation focus position stored in the storage means.

Further, in the surgical microscope according to the first aspect of the present invention, the invention according to the fourth aspect includes an illuminating means for illuminating the inside of the eye, and the switching means is provided by the illuminating means. Determining means for determining whether or not the inside of the eye is illuminated; wherein the control means moves the microscope main body based on an observation focus position stored in the storage means according to a determination result of the determination means. The operation of the means is controlled.

In the surgical microscope according to the first aspect of the present invention, the storage means may store the current position of the microscope main body when the microscope main body does not move for a predetermined time. It is characterized in that it is stored as an observation focus position.

In the surgical microscope according to the first aspect of the present invention, the invention according to the sixth aspect is characterized in that the intraocular observation lens for observing the inside of the eye and the intraocular observation lens are provided. An intraocular observation lens moving unit for moving, and an image conversion unit for converting an inverted image obtained by the intraocular observation lens into a normal image, wherein the switching unit includes: Determining means for determining whether or not image conversion into an executable state is possible, and the control means controls the operation of the intraocular observation lens moving means according to the determination result of the determining means. The operation of the microscope main body moving means is controlled based on the observation focus position stored in the storage means.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) In a first embodiment of the present invention, an anterior eye portion of an eye to be examined and an inside of the eye (for example, a fundus oculi) using an operating microscope and a fundus observation lens in intraocular surgery of the eye to be inspected. Section) as observation sites, the observation focus position of at least one observation site is stored, and when observing the observation site again, the observation focus position is switched according to the voice of the operator, and the observation is switched. A case in which the microscope main body is moved based on the focus position will be described.

FIG. 1 is a view showing an external configuration of a surgical microscope according to a first embodiment of the present invention. The operating microscope according to the first embodiment of the present invention shown in FIG. 1 includes a support 3 capable of running on a floor 2 such as an operating room, and a support 4 provided upward from the support 3. A first arm 5 supported by a column 4, a second arm 6 having one end attached to the first arm 5, and a horizontal movement attached to the other end of the second arm 6. It comprises a unit 7B, a vertical moving unit 7A mounted below the horizontal moving unit 7B, and a microscope body 8 mounted below the vertical moving unit 7A.

Further, the operating microscope 1 is provided with a foot switch 50 for an operator or the like to operate each unit of the operating microscope 1 with his / her feet. Further, a column vertical movement unit 4a is provided between the column 4 and the first arm 5, and the microscope body 8 moves vertically in conjunction with the vertical (vertical) movement of the column vertical movement unit 4a. It is configured as possible.

The microscope main body 8 includes a lens barrel 9 formed in a cylindrical shape, an eyepiece unit 11 mounted on an upper part of the lens barrel 9, and an illumination optical system mounted on a side of the lens barrel 9. It comprises a unit 16 and an objective lens unit 30 provided below the lens barrel 9.

FIG. 2 is a diagram showing a configuration of an optical system of a microscope main body and an intraocular surgical apparatus in an intraocular surgical system including an operating microscope according to a first embodiment of the present invention, and an intraocular surgical operation of an eye to be examined. FIG. 3 is a cross-sectional view showing a part of a configuration of a microscope main body of the surgical microscope according to the first embodiment of the present invention, and FIG. 4 is a surgical operation microscope according to the first embodiment of the present invention. It is a block diagram showing a part of composition of an intraocular operation system provided with a microscope.

In the microscope main body 8 shown in FIG. 2, the illumination optical system unit 16 includes an illumination light source 17 for emitting illumination light for illuminating the eye E, and a condenser lens 18 for collecting light from the illumination light source 17. , An illumination zoom unit 19, and a prism 20 that refracts light from the illumination zoom unit 19 toward the eye E.

The light from the prism 20 passes through the objective lens 10 in the objective lens unit 30, is reflected by the eye E, and is guided to the variable power optical system unit 22.

The variable power optical system unit 22 used to change the observation magnification of the observation site of the eye E is constructed by arranging convex lenses 22a and 22c and a concave lens 22b between the convex lenses 22a and 22c. I have. The light that has passed through the variable power optical system unit 22 is guided to the eyepiece unit 11 via the image conversion prism unit 29.

The image conversion prism unit 29 includes an eye E to be examined.
And an image conversion prism 29a for converting an inverted image obtained by the fundus observation lens 88 used as an intraocular observation lens into a normal image when observing the inside Ei of the eye.

The eyepiece unit 11 includes an imaging lens 23
, Prisms 24 and 25, and an eyepiece 26.

As shown in FIG. 3, a lead screw shaft 38 is connected to a slide member 70 of the vertical moving unit 7A via a connecting member 39, and the lead screw shaft 38 is driven by a driving unit 33 having a pulse motor or the like. Moves up and down while rotating. As a result, the microscope main body 8 moves in the vertical direction.

A lead screw shaft 34 is connected to the side of the objective lens unit 30 via a connecting member 35. The lead screw shaft 3 is driven by an objective lens drive unit 31 having a pulse motor or the like.
4 moves up and down while rotating. Accordingly, the objective lens unit 30 moves up and down along the optical axis C with respect to the lens barrel 9.

The intraocular surgery apparatus 100 shown in FIG. 2 includes an intraocular illumination light source unit 80 that emits illumination light for illuminating a fundus or the like, which is an observation site (operative site) of the inside Ei of the eye E to be examined. And an illumination probe 85 composed of an optical fiber for guiding illumination light emitted from the intraocular illumination light source unit 80 to the inside of the eye Ei and illuminating an observation site with the illumination light L, and a laser such as an argon laser. A laser oscillation unit 81 for oscillating the laser beam, and a laser irradiation probe 86 for irradiating a laser oscillated by the laser oscillation unit 81 to a surgical site in the eye Ei to perform an intraocular surgery
A physiological saline replenishing unit 82 for storing the physiological saline and replenishing the stored physiological saline through the replenishment probe 87 to the inside of the eye Ei, and a laser irradiation probe for unnecessary objects generated by intraocular surgery. Suction unit 8 for sucking through a tube (not shown) provided in 86
4 and between the eye E and the objective lens 10 to observe the fundus of the inside Ei of the eye, but are arranged at a position away from the eye E but close to the eye E (for example, a position about 5 mm away from the cornea). A non-contact type fundus observation lens 88 and a fundus observation lens drive unit 89 for inserting and removing the fundus observation lens 88 with respect to the optical path C are provided.

As shown in FIG. 4, a control processing unit 60a for controlling the operations of the surgical microscope 1 and the intraocular surgery apparatus 100 includes an objective lens for moving the objective lens unit 30 in the vertical direction along the optical axis C. A drive unit 31;
A vertical moving unit 7A for moving the microscope main body 8 in the vertical direction along the optical axis C, a horizontal moving unit 7B for moving the microscope main body 8 in the horizontal direction (left and right direction and front and rear direction), and a column vertical moving unit 4a. And a voice recognition unit 46 for recognizing voice input by a voice input unit 45 for inputting voices of the surgeon or the like.
A position detection unit 47 for detecting the position of the microscope main body 8 in the vertical direction;
2, a memory 61 for storing an observation focus position when observing the anterior eye part of the eye E and the inside Ei of the eye, a light source unit 80 for intraocular illumination, and a laser oscillation unit 81
, A physiological saline replenishing unit 82, and a suction unit 84
And the fundus observation lens drive unit 89 are connected.

The foot switch 50 includes a switch for moving the microscope main body 8 in the vertical direction by the vertical moving unit 7A, and an operation for moving the microscope main body 8 in the horizontal direction by the horizontal moving unit 7B. And a switch for performing an operation of moving the objective lens unit 30 in the vertical direction by the objective lens drive unit 31, and turning on / off the illumination light source 17.
And a switch for performing an OFF operation.

The foot switch 52 controls the operation of each unit of an intraocular illumination light source unit 80, a laser oscillation unit 81, a physiological saline replenishment unit 82, a suction unit 84, and a fundus observation lens driving unit 89, respectively. A switch for performing the operation is provided.

Next, the operation of the intraocular surgery system including the operating microscope according to the first embodiment of the present invention will be described.

First, when performing intraocular surgery on the eye E, the illumination probe 85, the laser irradiation probe 86, and the replenishment probe 87 are inserted into the eye Ei of the eye E as shown in FIG. .

Next, if necessary, a foot switch 52
Is operated to operate the fundus observation lens driving unit 89 to insert the fundus observation lens 88 onto the optical path C. As a result, the eye E to be examined is operated by the operating microscope 1.
Of the eye fundus can be observed. Of course, when the anterior segment can be observed, the fundus observation lens drive unit 89
Is operated to move the fundus observation lens 88 to the optical path C.
Evacuate from above.

Thereafter, in order to observe the anterior segment and the fundus of the eye E to be examined, the microscope body 8 is moved up and down by operating the foot switch 50 and operating the up-down moving unit 7A.

Here, at each observation, a focus position suitable for observing the anterior segment of the eye E to be examined (anterior focus position) and a focus position appropriate for observing the fundus oculi (fundus focus position) are defined as observation focus. Each is stored in the memory 61 as a position.

For example, if the microscope main body 8 has not moved within a predetermined time after the start of observation of the anterior segment, it is assumed that the anterior segment has been optimally observed, and the position detection unit 47 Is stored in the memory 61 as the anterior ocular segment focus position. Similarly, for observation of the fundus oculi, if the microscope main body 8 does not move within a predetermined time set in advance, it is assumed that the fundus oculi is optimally observed and detected by the position detection unit 47. The current position of the microscope main body 8 is stored in the memory 61 as the fundus focus position.

It is not necessary to store the anterior eye focus position and the fundus focus position in the memory 61, and only one observation focus position (specifically, the anterior eye focus position) is stored in the memory 61. You may.
In this case, the fundus focus position is set to a position apart from the anterior eye focus position stored in the memory 61 by a preset switching movement distance (for example, about 26 mm, which is stored in the memory 61 in advance).

When moving the microscope body 8 in the vertical direction between the anterior eye focus position and the fundus focus position, the microscope body 8 is moved at a predetermined moving speed (for example, constant at 2 mm / sec). However, the moving speed can be changed during the movement. For example, when moving the microscope main body 8 from the anterior eye focus position to the fundus focus position, first, the microscope main body 8 is moved.
Is moved at a moving speed higher than the moving speed set in advance, and the moving speed is changed (slowed) at a time when it approaches the fundus focus position to some extent so that the microscope main body 8 can be quickly stopped at the anterior eye focus position. To

As described above, the observation focus position of at least one of the anterior eye focus position and the fundus focus position is stored in the memory 61. Thereafter, when observing the anterior eye portion or the fundus oculi again, the fundus oculi observation lens 8 is determined based on the observation focus position stored in the memory 61 and the switching movement distance stored in advance.
The microscope body 8 is moved up and down by inserting and removing the microscope body 8.

Here, the switching of the observation focus position is performed by a voice of an operator or the like. For example, if the operator is currently observing the anterior segment at the anterior segment focus position, and then wants to observe the fundus, if the operator says "fundus", the operator's voice will be the voice input unit 45. And is subjected to recognition processing by the voice recognition unit 46. This recognition result (information indicating that the fundus is to be observed) is output to the control processing unit 60a.

The control processing unit 60a reads the fundus focus position stored in the memory 61 based on the recognition result, and moves the microscope body 8 to the read fundus focus position. 7A is controlled.

As described above, when the fundus focus position is not stored in the memory 61, the switching movement distance is stored in advance, so that this switching from the anterior eye focus position which is the current position is performed. The operation of the up-down movement unit 7A is controlled so as to move the microscope main body 8 up and down (here, down) by the movement distance. Thereby, the microscope main body 8 moves to the fundus focus position.

The anterior eye focus position and the fundus focus position stored in the memory 61 are reset, for example, when an operator moves the second arm 6 or the like.

In the first embodiment of the present invention, the case where the microscope main body 8 is moved to the observation focus position has been described. However, it is also possible to move the objective lens unit 30 to the observation focus position.

(Embodiment 2) In the second embodiment of the present invention, similarly to the case of the first embodiment of the present invention, a surgical microscope and a fundus observation lens in intraocular surgery of an eye to be examined. When observing the anterior eye part and the fundus oculi of the subject's eye as an observation part using, the observation focus position of at least one of the observation parts is stored. A case in which the microscope body is moved based on the switched observation focus position, which is performed depending on the presence or absence of a contact lens serving as an observation lens, will be described.

FIG. 5 is a diagram showing a configuration of an intraocular surgery system having a surgical microscope according to a second embodiment of the present invention.
FIG. 4 is a block diagram showing a part of a configuration of an intraocular surgery system including a surgical microscope according to a second embodiment of the present invention.
The intraocular surgery system including the surgical microscope according to the second embodiment of the present invention shown in FIGS. 5 and 6 has substantially the same configuration as the intraocular surgery system according to the first embodiment of the present invention. However, unlike the case of the first embodiment of the present invention,
Instead of using the non-contact fundus observation lens 88 and the fundus observation lens drive unit 89, a contact lens 83 that is a contact-type fundus observation lens placed in contact with the cornea Ec of the eye E is used. ing. In addition, in order to determine whether the contact lens 83 is placed on the cornea Ec, a CCD (charge-coupled device) camera 41 for obtaining an anterior segment image of the subject's eye E and a CCD camera 41 are used. An image processing unit 42 for performing image processing for extracting an image of the contact lens 83 from the anterior segment image is provided.

Here, the operation of the intraocular surgery system having the operating microscope according to the second embodiment of the present invention will be described.

First, when performing intraocular surgery on the eye E, the illumination probe 85, the laser irradiation probe 86, and the replenishment probe 87 are inserted into the eye Ei of the eye E as shown in FIG. .

Next, if necessary, a contact lens 83 as a fundus observation lens is placed in contact with the cornea Ec of the eye E to be examined. Thus, the fundus of the eye E can be observed with the surgical microscope 1. Of course, when the anterior segment can be observed, the contact lens 83 is removed from the cornea Ec.

Further, in order to observe the anterior segment and the fundus of the eye E to be examined, the microscope body 8 is moved up and down by operating the foot switch 50 to operate the up and down moving unit 7A.

Thereafter, at least one of the anterior segment focus position and the fundus segment focus position is stored in the memory 61. This is performed in the same manner as in the above-described first embodiment of the present invention. Will be

When at least one of the anterior eye focus position and the fundus focus position is stored in the memory 61 and then the anterior eye or the fundus is observed again, the memory 61 stores the focus position. The microscope main body 8 is moved up and down based on the observation focus position and the switching movement distance stored in advance.

Here, the switching of the observation focus position is performed depending on whether or not the contact lens 83 is disposed on the cornea Ec. That is, the image of the anterior segment of the eye E is acquired by the CCD camera 41, and the acquired image of the anterior segment is image-processed in the image processing unit 42 to perform the image extraction processing of the contact lens 83. The result of the extraction processing (information indicating whether or not the image of the contact lens 83 has been extracted) is output to the control processing unit 60b.

In the control processing unit 60b, the contact lens 83 is moved to the cornea E based on the result of the extraction processing.
c, and reads the observation focus position stored in the memory 61 based on the judgment result, and moves the microscope body 8 to the read observation focus position so as to move the microscope main body 8 to the observation focus position. 7A
Control the operation of.

When the contact lens 83 is placed on the cornea Ec and the fundus focus position is not stored in the memory 61 when observing the fundus,
Since the switching movement distance is stored in advance, the vertical movement unit 7A moves the microscope main body 8 vertically (here, downward) by this switching movement distance from the current anterior focus position. Control the operation of.
Thereby, the microscope main body 8 moves to the fundus focus position.

In the second embodiment of the present invention, the case where the microscope main body 8 is moved to the observation focus position has been described. However, the objective lens unit 30 may be moved to the observation focus position. .

(Embodiment 3) In the third embodiment of the present invention, similarly to the case of the first embodiment of the present invention, an operating microscope and a fundus observation lens in intraocular surgery of an eye to be examined. When observing the anterior segment and the fundus of the subject's eye as observation sites using, the observation focus position of at least one of the observation sites is stored. A case will be described in which the operation is performed depending on the ON / OFF state of the internal illumination and the microscope main body is moved based on the switched observation focus position.

FIG. 7 is a diagram showing a configuration of an optical system of a microscope main body and an intraocular surgical apparatus in an intraocular surgical system having an operating microscope according to a third embodiment of the present invention, and an intraocular surgical operation of an eye to be examined. FIG. 8 is a block diagram showing a part of the configuration of an intraocular surgery system including a surgical microscope according to a third embodiment of the present invention. The intraocular surgery system including the surgical microscope according to the third embodiment of the present invention shown in FIGS. 7 and 8 has substantially the same configuration as the intraocular surgery system according to the first embodiment of the present invention. However, unlike the case of the first embodiment of the present invention, instead of providing the laser oscillation unit 81 and the laser irradiation probe 86 as units for performing intraocular surgery, an ultrasonic drive unit 90 and a cutter are provided. An intraocular surgery device 102 having a probe 91 is provided. Cutter probe 91
Has a guillotine-type cutter ultrasonically driven by the ultrasonic driving unit 90, and cuts an operation target in the eye Ei with the cutter. Further, the control processing unit 60c determines the on / off state of the intraocular illumination light source unit 80, and controls the switching of the observation focus position based on the determination result.

Here, the operation of the intraocular surgery system including the operating microscope according to the third embodiment of the present invention will be described.

First, when performing intraocular surgery on the eye E to be examined, as shown in FIG. 7, the illumination probe 85, the supply probe 87, and the cutter probe 91 are inserted into the inside Ei of the eye.

Next, if necessary, the foot switch 52
Is operated to operate the fundus observation lens driving unit 89 to insert the fundus observation lens 88 onto the optical path C. As a result, the eye E to be examined is operated by the operating microscope 1.
Of the eye fundus can be observed. Of course, when the anterior segment can be observed, the fundus observation lens drive unit 89
Is operated to retract the fundus observation lens 88 from the optical path C.

Further, in order to observe the anterior segment and the fundus of the eye E to be examined, the microscope body 8 is moved in the vertical direction by operating the foot switch 50 and operating the vertical moving unit 7A.

Thereafter, at least one of the anterior eye focus position and the fundus oculi focus position is stored in the memory 61. This is performed in the same manner as in the above-described first embodiment of the present invention. Will be

When at least one of the anterior eye focus position and the fundus oculi focus position is stored in the memory 61 and then the anterior eye or the fundus oculi is observed again, the memory 61 is stored. The fundus observation lens 88 is inserted / removed based on the observation focus position and the switching movement distance stored in advance, and the microscope main body 8 is moved in the vertical direction.

Here, the switching of the observation focus position is performed depending on whether the intraocular illumination light source unit 80 is turned on and the intraocular illumination is performed. That is, in the control processing unit 60c, the light source unit 80 for intraocular illumination is used.
Is determined, the observation focus position stored in the memory 61 is read based on the determination result, and the operation of the vertical movement unit 7A is performed so as to move the microscope body 8 to the read observation focus position. Control.

As described above, if the fundus focus position is not stored in the memory 61, the switching movement distance is stored in advance, so that the current anterior focus position is switched from the current position. The operation of the up-down movement unit 7A is controlled so as to move the microscope main body 8 up and down (here, down) by the movement distance. Thereby, the microscope main body 8 moves to the fundus focus position.

In the third embodiment of the present invention, the case where the microscope main body 8 is moved to the observation focus position has been described. However, it is also possible to move the objective lens unit 30 to the observation focus position.

(Embodiment 4) In a fourth embodiment of the present invention, similarly to the first embodiment of the present invention, a surgical microscope and a fundus observation lens in intraocular surgery of a subject's eye. When observing the anterior eye part and the fundus oculi of the subject's eye as an observation part using, the observation focus position of at least one of the observation parts is stored. This is performed according to the normal rotation state or the reverse state of the image conversion prism that converts the inverted image obtained by the observation lens into a normal image.At the time of this switching, the fundus observation lens is moved, and based on the switched observation focus position. The case where the microscope body is moved will be described.

FIG. 9 is a diagram showing a configuration of an optical system of a microscope main body and an intraocular surgical apparatus in an intraocular surgical system having an operating microscope according to a fourth embodiment of the present invention, and an intraocular surgical operation of an eye to be examined. FIG. 10 is a diagram for explaining the fourth embodiment of the present invention.
It is a block diagram which shows a part of structure of the intraocular surgery system provided with the operating microscope of embodiment. 9 and 1
The intraocular surgery system including the surgical microscope according to the fourth embodiment of the present invention shown in FIG. 0 has substantially the same configuration as the intraocular surgical system according to the third embodiment of the present invention.

The foot switch 52a is provided with a switch for operating the image conversion prism driving unit 28 in addition to the switch provided on the foot switch 52. The control processing unit 60d controls the operation of the image conversion prism driving unit 28 in accordance with the operation of the foot switch 52a, thereby rotating or inverting the image conversion prism 29a in the image conversion prism unit 29. When observing the fundus with the fundus observation lens 88, the inverted image obtained by the fundus observation lens 88 is converted into a normal image by inverting the image conversion prism 29a. Further, by providing a fundus observation lens holding mechanism 92 for holding the fundus observation lens 88 so that the fundus observation lens driving unit 89 can swing in the direction indicated by the arrow D, the fundus observation lens 88 is provided.
With respect to the optical path C.

Here, the operation of the intraocular surgery system including the operating microscope according to the fourth embodiment of the present invention will be described. FIG. 11 is a schematic diagram for explaining a case of observing the anterior segment and the fundus of the subject's eye in the intraocular surgery system including the operating microscope according to the fourth embodiment of the present invention. 11A shows a state in which the microscope main body has moved to a position for observing the anterior segment, FIG. 11B shows a state in which the fundus observation lens has moved on the optical path, and FIG.
FIG. 11C shows a state in which the microscope main body has moved to a position for observing the fundus in FIG. 11B.

First, when performing intraocular surgery on the eye E to be examined, as shown in FIG. 9, the illumination probe 85, the supply probe 87, and the cutter probe 91 are inserted into the inside Ei of the eye.

Next, when the anterior segment of the eye E can be observed, the foot switch 50 is retracted with the fundus observation lens 88 retracted from the optical path C as shown in FIG. Is operated to operate the vertical moving unit 7A, thereby moving the microscope main body 8 in the vertical direction. Thus, the anterior segment can be optimally observed.

On the other hand, when the fundus can be observed,
By operating the foot switch 52a, the image conversion prism drive unit 28 is operated to invert the image conversion prism 29a in the image conversion prism unit 29. Thereby, the inverted image obtained by the fundus observation lens 88 can be converted into a normal image.

Further, the lens driving unit 89 for fundus observation is operated in conjunction with the operation of the image conversion prism driving unit 28 by operating the foot switch 52a.
As shown in (b), the fundus observation lens holding mechanism 92 is swung in the direction indicated by the arrow D1 to move the fundus observation lens 88 onto the optical path C.

Further, by operating the foot switch 50 to operate the vertical moving unit 7A, FIG.
As shown in FIG. 1 (c), the microscope main body 8 is moved in the vertical direction (the direction indicated by the arrow D2), and the fundus observation lens 88 is brought close to the eye E to be examined, for example, to about 5 mm. Thereby, the fundus can be optimally observed.

Thereafter, at least one of the anterior eye focus position and the fundus oculi focus position is stored in the memory 61. This is performed in the same manner as in the above-described first embodiment of the present invention. Will be

After the observation focus position of at least one of the anterior eye focus position and the fundus focus position is stored in the memory 61, when observing the anterior eye or the fundus again, the memory 61 is stored. The fundus observation lens 88 is inserted / removed based on the observation focus position and the switching movement distance stored in advance, and the microscope main body 8 is moved in the vertical direction.

The switching of the observation focus position is performed as follows.
The determination is performed depending on whether the image conversion prism 29a is in an inverted state (whether the image conversion prism 29a is capable of performing image conversion from an inverted image obtained by the fundus observation lens 88 to a normal image). That is, the control processing unit 60d determines the normal rotation state or the inversion state of the image conversion prism 29a, and reads the observation focus position (the fundus focus position) stored in the memory 61 based on the determination result.

Here, as shown in FIG. 11, when shifting from observation of the anterior eye to observation of the fundus, the foot switch 52a is operated to invert the image conversion prism 29a. Further, in conjunction with this, the fundus observation lens 88 is moved on the optical path C. Further, after the fundus observation lens 88 is disposed on the optical path C, the microscope main body 8 is moved to the read observation focus position.

As described above, when the fundus focus position is not stored in the memory 61, the switching movement distance is stored in advance, so that the switching movement distance from the current anterior eye focus position is determined. The operation of the vertical movement unit 7A is controlled so as to move the microscope main body 8 only in the vertical direction (here, the downward direction, the direction indicated by the arrow D2). Thereby, the microscope main body 8 moves to the fundus focus position.

When shifting from observation of the fundus to observation of the anterior eye, the foot switch 52a is operated to rotate the image conversion prism 29a forward. In conjunction with this, the observation focus position (anterior focus position) stored in the memory 61 is read, and the microscope main body is moved to the read observation focus position. After that, the fundus observation lens 88 disposed on the optical path C is moved to the optical path C.
Evacuate from above. Here, the reason that the fundus observation lens 88 is retracted from the optical path C after the microscope main body 8 is moved in the vertical direction (here, upward) is that the fundus observation lens 88 is retracted during the retraction operation of the fundus observation lens 88. This is for avoiding the use lens 88 colliding with the eye E.

In the fourth embodiment of the present invention, the case where the microscope main body 8 is moved to the observation focus position has been described. However, it is also possible to move the objective lens unit 30 to the observation focus position.

[0081]

As described above, according to the present invention, the observation focus position can be switched between the anterior segment of the eye to be inspected and the inside of the eye, which is a surgical site, so that the surgeon can view the eye of the eye to be inspected. Internal surgery can be performed more easily and quickly.

[Brief description of the drawings]

FIG. 1 is a diagram showing an external configuration of a surgical microscope according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of an optical system of a microscope main body and an intraocular surgery apparatus in an intraocular surgery system including an operation microscope according to a first embodiment of the present invention, and describes intraocular surgery of an eye to be inspected. FIG.

FIG. 3 is a sectional view showing a part of the configuration of a microscope main body of the surgical microscope according to the first embodiment of the present invention.

FIG. 4 is a block diagram illustrating a part of a configuration of an intraocular surgery system including the surgical microscope according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of an optical system of a microscope main body and an intraocular surgery apparatus in an intraocular surgery system including an operation microscope according to a second embodiment of the present invention, and describes intraocular surgery of an eye to be examined. FIG.

FIG. 6 is a block diagram illustrating a part of a configuration of an intraocular surgery system including a surgical microscope according to a second embodiment of the present invention.

FIG. 7 is a diagram illustrating a configuration of an optical system of a microscope main body and an intraocular surgery apparatus in an intraocular surgery system including an operation microscope according to a third embodiment of the present invention, and describes intraocular surgery of an eye to be examined. FIG.

FIG. 8 is a block diagram showing a part of the configuration of an intraocular surgery system including a surgical microscope according to a third embodiment of the present invention.

FIG. 9 is a diagram illustrating a configuration of an optical system of a microscope main body and an intraocular surgery apparatus in an intraocular surgery system including an operation microscope according to a fourth embodiment of the present invention, and describes intraocular surgery of an eye to be inspected. FIG.

FIG. 10 is a block diagram illustrating a part of a configuration of an intraocular surgery system including a surgical microscope according to a fourth embodiment of the present invention.

FIG. 11 is a schematic diagram for explaining a case of observing an anterior segment and a fundus of an eye to be inspected in an intraocular surgery system including a surgical microscope according to a fourth embodiment of the present invention.

[Explanation of symbols]

 E Eye to be examined Ec Cornea Ei Inside of eye 1 Surgical microscope 7A Vertical moving unit 7B Horizontal moving unit 8 Microscope body 10 Objective lens 16 Illumination optical system unit 17 Illumination light source 28 Image conversion prism drive unit 29 Image conversion prism unit 29a Image conversion Prism 30 Objective lens unit 33 Drive unit 41 CCD camera 42 Image processing unit 45 Voice input unit 46 Voice recognition unit 47 Position detection unit 50, 52 Foot switch 60a, 60b, 60c, 60d Control processing unit 61 Memory 80 Light source for intraocular illumination Unit 81 Laser oscillation unit 82 Physiological saline replenishing unit 83 Contact lens 84 Suction unit 85 Illumination probe 86 Laser irradiation probe 87 Replenishment probe 88 Fundus observation lens 89 fundus observation lens driving unit 90 ultrasonic drive unit 91 cutter probe 92 fundus observation lens holding mechanism 100, 102 intraocular surgical apparatus

Claims (6)

[Claims] 1. A surgical microscope having a microscope main body for observing an anterior segment of an eye to be examined and an inside of the eye, wherein at least one observation focus position is stored when observing the anterior segment and the inside of the eye. Means, switching means for switching the observation of the anterior eye or the inside of the eye, microscope body moving means for moving the microscope body, and in response to switching of the observation of the anterior eye or the inside of the eye by the switching means, A control means for controlling the operation of the microscope main body moving means based on the observation focus position stored in the storage means. 2. The apparatus according to claim 1, wherein the switching unit includes: a voice input unit configured to input a voice indicating that the anterior eye or the inside of the eye is to be observed; and a voice recognition unit configured to recognize the voice input by the voice input unit. 2. The apparatus according to claim 1, wherein the control unit controls an operation of the microscope main body moving unit based on an observation focus position stored in the storage unit in accordance with a recognition result of the voice recognition unit. The surgical microscope according to claim 1. 3. The switching means includes a judgment means for judging whether an intraocular observation lens for observing the inside of the eye is arranged, and the control means responds to a judgment result of the judgment means. The operation microscope according to claim 1, wherein the operation of the microscope main body moving means is controlled based on the observation focus position stored in the storage means. 4. An illumination unit for illuminating the inside of the eye, the switching unit includes a determination unit for determining whether the inside of the eye is illuminated by the illumination unit, and the control unit includes: According to the judgment result of the judgment means,
The operation microscope according to claim 1, wherein the operation of the microscope main body moving unit is controlled based on the observation focus position stored in the storage unit. 5. The apparatus according to claim 1, wherein the storage unit stores a current position of the microscope main body when the microscope main body does not move for a predetermined time as an observation focus position.
The surgical microscope according to claim 1. 6. An intraocular observation lens for observing the inside of the eye, an intraocular observation lens moving means for moving the intraocular observation lens, and an inverted image obtained by the intraocular observation lens. Image conversion means for converting to a normal image, the switching means comprises a determination means for determining whether the image conversion means is in a state where image conversion from an inverted image to a normal image is executable, The control means controls the operation of the intraocular observation lens moving means in accordance with the result of the judgment by the judgment means, and controls the operation of the microscope main body moving means based on the observation focus position stored in the storage means. The operating microscope according to claim 1, wherein the operation microscope is controlled.