JPH0561612B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a drive control device for operating a drive mechanism for performing various position adjustments in, for example, a stereomicroscope used in the medical field. .

[Prior Art] Stereo microscopes are widely used for medical purposes such as surgeries and examinations, as well as for research and industrial purposes, and are useful for improving precision and stability in surgeries.

Typically, a stereomicroscope consists of a microscope main body that combines a binocular stereomicroscope and an illumination device, and a pedestal for supporting the main body and freely adjusting its position. FIG. 1 has the same external appearance as the embodiments of the present invention, and shows the overall configuration of a general floor-mounted stereoscopic microscope used mainly as a surgical microscope. The stand 1 is provided with a fixed column 2, and a movable arm 3 is attached to the fixed column 2 so as to be rotatable and slidable in the vertical direction indicated by arrow A. Then, X- indicated by arrows B and C
An X-Y fine movement device 4 containing a drive mechanism for fine movement in the Y direction is rotatably suspended from the movable arm 3, and a vertical movement device is provided below the X-Y fine movement device 4 as shown by arrow D. A microscope main body 5 is connected so as to be slidable in the vertical direction. Further, a foot switch stand 6 is connected to the stand 1 by an electric wire,
This foot switch base 6 includes a switch 7 for fine movement in the X-Y direction, a switch 8 for coarse movement in the vertical direction, a switch 9 for zooming, and a switch 10 for focusing.
is provided.

Coarse movement in the vertical direction, fine movement in the X-Y direction, zooming and focusing of the optical system, etc. indicated by arrows A to D are driven by an electric motor, and the motor is controlled by switches 7 to 10 arranged on the foot switch base 6.
It is performed by stepping on each foot with one foot. However, such foot-operated operation makes it difficult to determine the position of the switch, which increases the risk of erroneous operation, which may reduce the safety of surgery, etc.

[Object of the Invention] An object of the present invention is to provide a drive control device that eliminates the risk of erroneous operation by providing a means for transmitting to the user the operation contents of a plurality of switch groups that control a plurality of drive mechanisms. Our goal is to provide the following.

[Summary of the invention] The gist of the present invention for achieving the above object is as follows:
a first switch that detects that one of a plurality of drive mechanisms for driving members installed in a stereomicroscope is selected by an operator; and a type of the drive mechanism detected by the first switch. This is a drive control device characterized by having a transmission means for transmitting the information to an operator, and a second switch for driving the selected drive mechanism after the transmission by the transmission means.

[Embodiments of the Invention] The present invention will be explained in detail based on the embodiments illustrated in FIG. 2 and below. Note that the same reference numerals as in FIG. 1 indicate the same members.

FIG. 2 is a basic configuration diagram of this embodiment, and although the case where it is applied to the focusing switch 10 is illustrated, the other foot switches 7 to 9 are similarly constructed.

Contacts 11 and 12 are installed near both ends of the bottom surface of the focusing seesaw switch 10, and a motor 14 is connected to these contacts 11 and 12 via a motor drive circuit 13. Furthermore, contact 1
1 was placed at the focal plane of the microscope's eyepiece.
The LED drive circuit 16a that drives the LED 15a is
An LED drive circuit 16b that drives the LED 15b is connected to the contact 12. Further, in the center of the seesaw switch 10, a light emitting element 17 and a light receiving element 1 are provided.
A reflective photo proximity switch consisting of 8 is provided, and a power source 19 is connected to the light emitting element 17.
The light receiving element 18 includes an amplifier circuit 20, a detection circuit 21,
Schmitt trigger circuit 22, LED drive circuit 16
c are connected in sequence, and the LED drive circuit 16c drives the LED 15c on the focal plane of the eyepiece.

FIG. 3 shows the configuration of the light-emitting display device in the focal plane of the eyepiece, and only what corresponds to the LED 15b is shown. At the focal point of the eyepiece lens 24 provided in the eyepiece housing 23 of the microscope, there is a display device 28 that is integrated by laminating a substrate 25, a field stop 26, and a vinyl sheet 27.
is mounted. The LEDs 15b for each display are attached to the substrate 25, the field stop 26 is provided with an opening 26a corresponding to each LED 15b, the vinyl sheet 27 is formed with a transmission pattern suitable for each display, and the LED 15b
The light emitted from the aperture 26a passes through the aperture 26a and illuminates the transmission pattern.

In the surgical microscope configured as described above, when an examiner or operator approaches the focus seesaw switch 10 to adjust the focus of the microscope, the light from the light emitting element 17 is emitted from the examiner's foot. is diffusely reflected by the light receiving element 18.
Detected by The output signal of the light receiving element 18 is inputted to the LED drive circuit 16c via the amplifier circuit 20, the detection circuit 21, and the Schmitt trigger circuit 22, and the LED 15c on the board 25 is turned on, and the characters such as FOCUS on the vinyl sheet 27 are turned on. The displayed transmission pattern 27a is illuminated, and the examiner can observe the transmission pattern 27a within the field of view of the microscope together with the image of the area to be examined E through the objective lens, and check whether the selection of the switch 10 is correct or incorrect before operation. can do.

After confirming the accuracy, the examiner's foot is on the seesaw switch 10.
When pressed in either direction, contact 11 or 12
contacts, and the signal is transmitted through the motor drive circuit 13 in the same way as in the conventional device, in the rotational direction corresponding to the focusing direction according to the contact point 11 or 12.
The motor 14 is rotated to drive the focusing mechanism. At the same time, the contact signal of contact 11 or 12 is
Input to LED drive circuit 16a or 16b, LED
15a or 15b, the examiner simultaneously views the image of the area to be examined E with transmission patterns 27b and 27 such as arrows.
You can check whether the correct operation is actually being performed by observing c.

The mechanism shown in FIGS. 2 and 3 is as follows:
The switch 7 for fine movement in the X-Y direction, the switch 8 for coarse movement in the vertical direction, and the switch 9 for zooming are similarly constructed. Therefore, in order to change the magnification of the microscope, when the foot approaches the zoom seesaw switch 9, the letters 27d of ZOOM are displayed in the field of view of the microscope in the same way as in the case of focusing. When the seesaw switch 9 is depressed to drive the zoom mechanism, an arrow or the like corresponding to that direction is displayed by emitting light. The light emitting display is performed in the same manner for the other drive devices, so that it is possible to confirm whether the drive device is operating before or during operation.

In this embodiment, in this way, it is possible to confirm whether the switch selection is correct or incorrect before operating the drive device, and the state of drive of the device can be confirmed by light-emitting displays such as arrows, and furthermore, the position of the foot during operation can be confirmed. Since it is possible to constantly check the information, the risk of erroneous operation can be significantly reduced.

In addition, a detection means such as a limit switch (not shown) is incorporated to detect when the various drive mechanisms described above have reached the limit position of the movable range, and when the limit position is reached, the foot switch during operation is It is possible to inform the user that the drive mechanism will not move any further even if the user continues to step on the button, thereby eliminating unnecessary operations and further improving operability.

In addition to the method using the reflection type proximity switch of this embodiment, there is also a means for detecting in advance what the selected switch drives, for example, the foot switch is a two-stroke switch, and the switch is driven by the first stroke. It is also possible to detect what the switch is driving and then press the switch to the second stroke to actually activate the drive mechanism.

Furthermore, in the above-described embodiment, the content of the switch selection is displayed by emitting light within the field of view of the microscope, but the LED drive circuit 16c in FIG. may be transmitted to the examiner by voice. In the previous embodiment, since the display element is provided inside the microscope, the configuration becomes a little complicated, but by using audio as the transmission means, it becomes possible to make the circuit independent, and the configuration can be simplified.

Further, by using various means for transmitting the operation contents of the switch group to the examiner, the group of switches on the foot switch base 6 can be simplified. FIG. 4 shows a simplified configuration of the switch group on the foot switch stand 6. A momentary switch 29 for mode switching is installed on the foot switch stand 6, and proximity switches 17, 18 are installed near this momentary switch 29. A drive switch 30 formed by two pairs of seesaw switches is provided approximately at the center of the foot switch base 6.

When driving the apparatus, first, the mode changeover switch 29 is used to select which part of the apparatus is to be driven. At that time, the examiner's feet are detected by the proximity switches 17 and 18, which have a configuration similar to that shown in Fig. 2, and a light-emitting display called FOCUS, which is in a conventional mode, is reduced in the field of view of the microscope. By this point reduction, the examiner can confirm that his or her feet are on the mode changeover switch 29. However, as shown in FIG. 4, if the shape or size of the mode changeover switch 29 and the operation switch 30 are changed significantly, it will be easy to distinguish between these two types of switches.
7 and 18 can also be omitted. Each time the mode changeover switch 29 is pressed, the function mode is changed in sequence, for example, zooming → vertical coarse movement → focusing → XY fine movement → The selected mode is displayed within the field of view of the microscope in the same way as the light emitting display shown in Figure 2. The motes will be illuminated to allow you to select the appropriate mode. For example, if the switching mode is initially set to zoom mode, there will be ZOOM in the field of view.
A pair of seesaw switches among the foot switches 30, for example 30a and 30b,
By operating the foot switch 30 in the direction of 30a or 30b, the drive direction will be displayed in the field of view, and at the same time, the zoom lens system of the microscope will be driven in accordance with the direction of operation, and the observation magnification of the microscope will be Change.

Next, when performing focusing operations,
Move your foot to the mode changeover switch 29. After that, when the mode selector switch 29 is depressed, the mode switches to the vertical movement mode, and then the mode selector switch 29 is depressed.
When you press 9, it enters focusing mode and the display in the field of view changes to FOCUS. At this time, the FOCUS continues to decrease to indicate that the changeover switch 29 is being operated. If you move your foot on the operation switch 30 in this state, the FOCUS stops decreasing and the FOCUS returns to its normal light emitting state. The focus of the microscope can be adjusted by appropriately operating the operation switch 30.

[Effects of the Invention] As explained above, when a plurality of drive devices are controlled by a plurality of switch groups, the drive control device according to the present invention can control the operation content of the switch to be operated or being operated. By providing a means for transmitting information to the examiner, it is possible for the examiner to confirm whether the selection of the operating switch is correct or not, and whether the content of the operation is correct or incorrect, thereby making it possible to eliminate erroneous operations. Furthermore, a plurality of switch groups can be combined into a multi-function switch, thereby simplifying the switch group and improving the operability of each device. By making it possible to confirm the operation in this way, it is possible to prevent erroneous operation not only by examiners who are familiar with the device, but also by inexperienced examiners, and is particularly effective in the medical field where erroneous operation is not allowed. Smooth surgery, etc. can be performed, and the safety of surgery, etc. can be significantly improved.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of a surgical microscope, Fig. 2 and subsequent figures show embodiments of the drive control device according to the present invention, Fig. 2 is a basic configuration diagram of the main parts, and Fig. 3 is a diagram showing the basic configuration of the main parts.
The figure is a perspective view of a display section, and FIG. 4 is a perspective view of a foot switch according to another embodiment. 1 is a stand, 2 is a fixed column, 3 is a movable arm, 4 is an X-Y fine movement device, 5 is a microscope main body, 6
is a foot switch stand, 7, 8, 9, 10 are foot switches, 11, 12 are contacts, 13 is a motor drive circuit, 14 is a motor, 15 is an LED, 16 is an LED
Drive circuit, 17 and 18 are proximity switches, 24 is an eyepiece, 25 is a board, 26 is a field stop, 27 is a vinyl sheet, 29 is a mode selection switch, 3
0 is a seesaw switch.

Claims (1)

[Scope of Claims] 1. A first switch that detects that an operator has selected one of a plurality of drive mechanisms for driving members installed in a stereomicroscope; a transmission means for transmitting the type of the selected drive mechanism to an operator; and a second transmission means for driving the selected drive mechanism after the transmission by the transmission means.
A drive control device comprising a switch. 2. The drive control device according to claim 1, wherein the transmission means is display means within the field of view of the stereoscopic microscope. 3. The drive control device according to claim 1, wherein the transmission means is an audio display means.