JP2003344780A - Foot switch for surgical microscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foot switch for a surgical microscope which prevents an operator from having a change in operability and the feel of operation even if the direction of the foot switch is changed. <P>SOLUTION: The foot switch 91 for the surgical microscope has a plurality of operation switches 95 to 98 for operating a plurality of functions and a foot placing section 94 to enable the operator to place his or her foot thereon in operating the switches. The above microscope has the foot placing section 94 which is formed to a shape symmetrical with the vertical and horizontal lines and is formed higher with respect to a floor surface than the switch actuating points of the operation switches and the operation switches 95 to 98 arranged symmetrically with the vertical and horizontal lines with respect to the foot placing section. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foot switch of a surgical microscope for operating a plurality of functions of the surgical microscope.

[0002]

2. Description of the Related Art In recent years, as surgical procedures have become more sophisticated, the functions provided in surgical microscopes have become multifunctional and complex, and the number of operation switches provided on foot switches, such as input switches, has increased. Along with this, erroneous operations of foot switches are increasing. Therefore, in order to solve the above-mentioned problems, a foot switch having a plurality of input switches for operating a plurality of functions of a surgical microscope is known (for example, refer to Patent Document 1).

[0003]

[Patent Document 1] Japanese Patent Publication No. 5-6162

[0004]

The foot switch described in Patent Document 1 can reduce the erroneous operation because the operator can determine the type of the input switch on which the foot is placed. However, since the surgeon performs an operation with his / her foot placed on the foot switch during the operation, the operator's foot always exists on a plurality of input switches. Therefore, when the proximity sensor is used for detecting the input switch, the proximity sensor provided on the input switch other than the input switch on which the operator puts his foot to input the operation also reacts,
The operator cannot determine the desired input switch.

In order to solve such a problem, only the proximity sensor provided in one input switch is operated so that the operator can determine what function the input switch actually puts on. It is necessary that the operator's foot does not rest on the other input switch when the foot rests on one input switch. That is, this leads to an increase in the size of the foot switch.

In the operating room, there are various medical devices in addition to the operating microscope, and the floor of the operating room is complicated by the cables of these medical devices. Therefore, an increase in the size of the foot switch is likely to be restricted by the arrangement of the foot switch in the operating room, which makes it difficult for the operator to perform the operation in an optimal posture, which reduces the efficiency of the operation.

Further, in the patent document 1, the types of functions provided in the surgical microscope can be sequentially selected, for example, zooming operation → up / down coarse movement operation → focusing operation → XY fine movement operation → zooming operation. Although a foot switch having a changeover switch that can be switched is shown in the above, the function selection itself of the surgical microscope is not possible because there are many functions operated by the operator in the recent multifunctional surgical microscopes. This is a cumbersome cause to reduce the operation efficiency.

Further, in operating the surgical microscope,
Focusing and zooming operations are frequently performed. On the other hand, the vertical coarse movement function for largely moving the operating microscope to change the observation site is rarely used. So during surgery,
There are many cases where the focusing operation → zooming operation → focusing operation are repeated, but in this case, after performing the zooming operation, the changeover switch is operated and the focusing operation is performed again, so no other use is made. It is necessary to select the function once, and the selection work itself is not realistic.

Further, conventionally, in a foot switch, an input switch that is used infrequently is arranged on a foot rest provided around an input switch that is used frequently. Since the foot rest generally has a small foot rest area for the purpose of downsizing the foot switch, the operator tries to operate an input switch that is rarely used with a toe, etc. There is a risk of malfunctions such as operating on the heel.

The present invention has been made in view of the above circumstances, and its purpose is to provide an operator with a foot switch according to the conditions of the operating room, changes in the observation direction in the operation, operator's preference, and the like. An object of the present invention is to provide a foot switch for a surgical microscope that does not change in operability and operation feeling even when the orientation of the foot is changed.

[0011]

In order to achieve the above object, the present invention provides a plurality of operation switches for operating a plurality of functions and an operation switch for operating the operation switches.
In a foot switch of a surgical microscope having a foot rest portion on which an operator rests his foot, a foot rest portion formed vertically and horizontally symmetrically and higher than a switch operating point of the operation switch with respect to a floor surface, It has the above-mentioned operation switch arranged vertically and horizontally symmetrically with respect to a footrest part.

A second aspect of the present invention is characterized in that the input switch of the first aspect is two sets of forward / reverse rotation designating switches.

A third aspect of the present invention is characterized in that the footrest portion of the first or second aspect is formed in a cross shape.

According to the above construction, the operator can operate the operation switch by arranging the foot switch in any direction. Also, by using two sets of forward / reverse rotation designation switches as the operation switches, the operator puts his / her foot on the foot rest, tilts the foot on the foot rest, and uses the operator's toes and heels to adjust the forward / reverse direction. You can operate the rotation / reverse rotation specification switch. Further, by forming the footrest portion in a cross shape, the operator can move the foot in parallel on the footrest portion and operate the operation switches by stepping. Therefore, even if the orientation of the foot switch is changed for the operator, it is possible to provide the foot switch with no change in operability and operation feeling.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a first embodiment,
FIG. 1 is a plan view of a foot switch of a surgical microscope, and FIG. 2 is a side view of the same. The foot switch 1 can be connected to a surgical microscope (not shown) via a connection cable 2,
A plurality of input switches 3 to 8 are provided as operation switches for operating a plurality of functions included in the surgical microscope.

Next, each of the input switches 3 to 8 will be described. In the figure, reference numeral 3 is a seesaw switch for zooming which drives a known zooming mechanism built in the surgical microscope by forward / reverse rotation of a motor or the like. Is. Similarly, reference numeral 4 in the drawing denotes a focusing seesaw switch for driving a well-known focusing function provided in the surgical microscope by forward / reverse rotation of a motor or the like. The focusing seesaw switch 4 is arranged on the foot switch 1 in the vicinity of the scaling seesaw switch 3 and in parallel with the scaling seesaw switch 3.

In the figure, 5 is attached to a well-known photographic device (not shown) provided in the surgical microscope.
A release switch for operating a release of a 5 mm camera. Similarly, 6 in the drawing is an automatic focusing switch for activating a known automatic focusing mechanism provided in the surgical microscope, and 7 in the drawing is a surgical microscope. A coarse movement switch for driving a well-known coarse movement mechanism for moving the body portion of the surgical microscope provided in the up or down direction with respect to the floor surface. Reference numeral 8 in FIG. The coarse movement switch moves the mirror body part in a direction opposite to the direction in which the body part is moved.

The release switch 5 and the automatic focusing switch 6 are arranged above the focusing seesaw switch 4 in the figure as shown in FIG. 1, and as shown in FIG. Seesaw switches 3 and 4
The switch is arranged at a position higher than the upper surface of the switch with respect to the floor surface 10 with a height difference. The height difference of 5 to 15 mm is relatively easy to operate with an experimental machine, and is preferably 7 mm.
-9 mm, more preferably 8 mm. During operation of the magnification and focusing seesaw switches 3 and 4, the operator's foot 11 is set to a height at which the release switch 5 and the automatic focusing switch 6 cannot be operated. Similarly, in the coarse movement switches 7 and 8, while the operator is operating the release switch 5 and the automatic focusing switch 6, the coarse movement switches 7 and 8 are set to a height at which the operator's foot 11 cannot operate. It is arranged with a height difference. 9 is disposed between the seesaw switch 3 for zooming and the seesaw switch 4 for focusing, and is parallel to the seesaw switches 3 and 4 for zooming and focusing.
As shown in FIG. 2, it is a footrest portion arranged so as to be higher than the upper surface of each switch of the magnification and focusing seesaw switches 3 and 4 with respect to the floor surface 10.

As described above, each input switch 3 to
By arranging 8, the frequently used input switches such as the variable power and focusing seesaw switches 3 and 4 described in the prior art are arranged at the lower side in FIG. 1, and the less frequently used input goes up. It is configured to have a switch arrangement. Further, as shown in FIG. 2, the more frequently used input switches are arranged at a lower position with respect to the floor surface 10, and the lower the frequency of use, the lower the floor surface 1 becomes.
It is arranged at a position higher than 0.

Further, reference numerals 12 and 13 in the drawing denote photodetection switches as detecting means provided on the surface on which the release switch 5 and the automatic focusing switch 6 are provided. The function of the magnification and focusing seesaw switches 3 and 4 is stopped by operating at least one of them. Similarly, reference numerals 14 and 15 in the figure denote photodetection switches provided on the surface on which the coarse movement switches 7 and 8 are provided, and the changeover is performed by activating at least one of the photodetection switches 14 and 15. The functions of the double and focusing seesaw switches 3 and 4, the release switch 5, and the automatic focusing switch 6 are all stopped.

With the above-described structure, during the operation, the operator places the foot 11 on the foot rest portion 9 provided on the foot switch 1 as shown in FIG. Next, in order to change the observation magnification, the operator tilts the operator's foot 11 with the footrest portion 9 as a fulcrum, and uses the operator's heel to change the seesaw switch 3 for zooming.
By depressing and operating, the input signal is output to the surgical microscope, and the variable power mechanism provided in the surgical microscope is driven.

Similarly, in order for the operator to change the focus position,
By depressing and operating the focusing seesaw switch 4 with the operator's toe, an input signal is output to the surgical microscope, and the focusing mechanism provided in the surgical microscope is driven. When performing these operations, the operator moves the foot 11 in the direction of the arrow 16 on the upper surface of the footrest section 9 to perform the stepping operation of the magnification and focusing seesaw switches 3 and 4. At this time, when the operator moves the foot 11 in the direction of the arrow 17, the foot 11 of the operator comes into contact with the height difference between the release switch 5 and the automatic focusing switch 6 and the scaling and focusing seesaw switches 3 and 4. Then, the operator recognizes that the release switch 5 and the automatic focusing switch 6 are present at the position where the foot 11 is further moved in the direction of the arrow 17.

Further, in order for the operator to operate the release switch 5 and the automatic focusing switch 6, the operator moves the foot 11 on the foot rest 9 in the direction of the arrow 17 as described above, and the height difference is raised. Upon recognizing that, the foot 11 is raised to a height where the release switch 5 and the automatic focusing switch 6 are provided, and the release switch 5 and the automatic focusing switch 6 are operated. At this time, the operator moves the foot 11 in the direction of arrow 16 on the surface on which the release switch 5 and the automatic focusing switch 6 are provided to perform the stepping operation of the release switch 5 and the automatic focusing switch 6.

Further, when the operator moves the foot 11 on the surface on which the release switch 5 and the automatic focusing switch 6 are provided, the photodetection switches 12 and 13 are actuated, and the zooming and focusing are performed. The functions of the corresponding seesaw switches 3 and 4 are stopped. In addition, the operator
When the foot 11 is further moved in the direction of, the operator's foot 11 comes into contact with the height difference between the coarse movement switches 7 and 8 and the release switch 5 and the automatic focusing switch 6. Recognize that the coarse movement switches 7 and 8 are present at the position where the foot 11 is further moved to
In order for the operator to operate the coarse movement switches 7 and 8, the foot 11 is moved in the direction of the arrow 17 on the surface on which the release switch 5 and the automatic focusing switch 6 are provided, and the height difference is recognized. To raise the foot 11 to a position where the coarse movement switches 7 and 8 are provided.
And 8 are operated. At this time, by moving the foot 11 on the surface on which the coarse movement switches 7 and 8 are provided, the photodetection switches 14 and 15 are actuated, and the magnification and focusing seesaw switches 3 and 4, and the release switch. The functions of 5 and the automatic focusing switch 6 are stopped.

According to this embodiment, the input switches 3-8 are used.
This can be realized easily and at low cost by simply changing the conventional foot switch, such as providing a height difference in the arrangement of. Further, the light detection switches 12 to 15 are arranged on the respective surfaces on which the release switch 5 and the automatic focusing switch 6 and the coarse movement switches 7 and 8 are provided, and the light detection switches 12 to 15 are arranged at positions lower than the input switches 5 to 8. By stopping the function of the provided input switch, for example, the operator can use the release switch 5 and the automatic focusing switch 6 with his toes.
Even if the operator's heel accidentally touches the scaling and focusing seesaw switches 3 and 4 when operating the, the scaling and focusing seesaw switches 3 and 4 do not operate, so make an erroneous operation. There is no. Even when the coarse movement switches 7 and 8 are operated, malfunction can be similarly prevented.

The proximity sensor 1 according to the present embodiment.
Similar effects can be obtained even if 2 to 15 are changed to a configuration in which a non-contact switch such as an ultrasonic sensor or a touch sensor is provided on the switch upper surface of the input switches 5 to 8.

FIG. 3 to FIG. 6 show the second embodiment and the first embodiment.
The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 18 shown in FIG. 3 denotes a foot switch base constituting the foot switch 1, and the foot switch base 18 is provided with a foot rest portion 9. In the vicinity of the footrest portion 9, a photodetection switch 19 as an operation switch described later is provided.
And 20 are provided.

The photodetection switch 19 corresponds to the magnification seesaw switch 3 shown in the first embodiment, and is a well-known magnification changer built in a surgical microscope (not shown) in a direction of enlarging an observation image. A signal for driving the mechanism is output to the surgical microscope. The photodetection switch 20 outputs a signal for driving the zooming mechanism to the surgical microscope in a direction opposite to that of the photodetection switch 19.

In the figure, reference numeral 21 denotes a first switch block which can be attached to and detached from the foot switch base 18, and the first switch block 21 corresponds to the focusing seesaw switch 4 shown in the first embodiment. Light detection switch 22
And 23 are provided. A foot rest 24 is provided at an intermediate position between the light detection switches 22 and 23. The height of the first switch block 21 with respect to the foot switch base 18 is set such that when the operator places the foot 11 on the foot rest 9 and operates the light detection switches 19 and 20, Is the light detection switch 22
It is a height that does not operate 23 and 23. This height corresponds to the height difference of the first embodiment.

The operation of either of the photodetection switches 22 or 23 causes the photodetection switches 19 and 2 corresponding to the variable power seesaw switch 4 to operate.
It is configured to stop the 0 function. Similarly, 2 in the figure
Reference numeral 5 denotes a second switch block that is attachable to and detachable from the foot switch base 18.
The height of the fifth switch block 18 with respect to the foot switch base 18 is higher than that of the first switch block 21.
In the figure, 26 and 27 are the second switch block 2
5 is a light detection switch corresponding to the release switch 5 and the automatic focusing switch 6 shown in the first embodiment provided in FIG.

Reference numeral 28 in the drawing denotes a footrest portion provided at an intermediate position between the photodetection switches 26 and 27. The function of the light detection switches 19 and 20 corresponding to the magnification change seesaw switch 3 is stopped by operating either of the light detection switches 26 or 27 corresponding to the release and automatic focusing switches 5 and 6. It is composed.

FIG. 4 shows an assembly structure of the foot switch 1. Reference numeral 29 in the drawing denotes a plurality of positioning holes provided in the foot switch base 18, and 30 in the drawing denotes contacts for transmitting power and received signals to the light detection switches 22, 23, 26 and 27. In the figure, 31 is the first
And provided in the second switch blocks 21 and 25,
It is a pin provided at a position facing the positioning hole 29 when the first and second switch blocks 21 and 25 are attached to the foot switch base 18. Similarly, reference numeral 32 in the drawing denotes a contact provided at a position facing the contact 30 provided on the foot switch base 18. The pin 31 and the contact 32 provided on the first and second switch blocks 21 and 25 are provided at the same position.

Referring to FIG. 5, the photodetection switches 19 and 2 are
Details of 0, 22, 23, 26, 27 and the footrests 24 and 28 will be described. However, since the photodetection switches have the same configuration, the photodetection switch 22 will be described here.

Reference numeral 33 in the figure denotes a light emitting element provided in the first switch block 21, and a power source 34 is connected to the light emitting element 33 via contacts 30 and 32. Reference numeral 35 in the drawing denotes a light receiving element provided in the first switch block 21 for receiving the light emitted from the light emitting element 33, and an amplifier circuit 36, a motor drive circuit 37, via the contacts 30 and 32, The scaling motor 38 is sequentially connected. In a state where the operator's foot 11 placed on the upper surface of the foot rest 24 is in the state shown in FIG. 5, the light amount of the light 40 emitted from the light emitting element 33 is reflected on the operator's foot 11 and the light receiving element is received. 35 is the amount that cannot be received, and foot 1
When 1 is brought close to the position H, the light emitting element 33 is
The light 40 from is received by the light receiving element 35.

In order to assemble the foot switch 1 so that it can be used by the surgeon, the first and second switch blocks 21 having different mounting heights can be constructed by the above-mentioned construction.
25 to the first and second switch blocks 21, 2
The pin 31 provided on the No. 5 and the positioning hole 29 provided on the foot switch base 18 are aligned and attached to the foot switch base 18. At this time, the contacts 32 provided on the first and second switch blocks 21 and 25 and the contacts 3 provided on the foot switch base 18
When 0 touches, the first and second switch blocks 21 and 25 and the foot switch base 18 are electrically connected.

Next, when the operator operates the foot switch 1, the operator places the operator's foot 11 on the foot rest 9 provided on the foot switch 1 and performs operations such as surgery. Further, as shown in FIG. 6, the operator tilts the foot 11 in the direction of the arrow 41 with the foot rest 9 as a fulcrum in order to enlarge the observed image. When the foot 11 exceeds the height H, the foot switch base is moved. The light 4 emitted from the light emitting element 33 provided in 18
0 is reflected by the foot 11 and is received by the light receiving element 35.

As a result, the signal output from the light receiving element 35 is amplified by the amplifier circuit 36, and the amplified signal is converted by the motor drive circuit 37 into a signal for driving the scaling motor 38. This is achieved by rotating the motor 38 in a designated direction and driving a well-known zooming mechanism (not shown) in a direction in which the observation image is enlarged. Also, in order to reduce the observation image, as shown in 11 ', the foot 1
When 1 is tilted in the direction of arrow 41, the variable power motor 38 rotates in a designated direction by the same action as described above, and the variable power mechanism is driven in a direction to reduce the observed image.

Next, when the operator moves the foot 11 on the foot rest 9 in the direction of the arrow 42 shown in FIG. 3, the operator's foot 11 of the first switch block 21 touches. Thereby, the operator recognizes that the light detection switches 22 and 23 are present at the position where the foot 11 is further moved in the arrow 42 direction.

Further, in order for the operator to move the foot 11 in the direction of the arrow 42 to move the focus position of the surgical microscope, after recognizing that the foot 11 touches the first switch block 21, The foot 11 is raised along the first switch block 21 up to the height of the foot rest 24 provided on the first switch block 21.

Next, the foot 11 is moved on the foot rest 24 by the arrow 42.
Direction, the foot 11 is moved to a substantially central position of the foot rest 24, and the foot 11 is tilted with the foot rest 24 as a fulcrum in the same manner as described above, whereby the focusing seesaw in the first embodiment is performed. The light detection switches 22 and 23 corresponding to the switch 4 are actuated, and the well-known focusing mechanism built in the surgical microscope is driven. At this time, the detection switches 22 or 23 are activated to stop the functions of the photodetection switches 19 and 20.

Next, from the state in which the operator puts the foot 11 on the footrest portion 9, the arrow 4 in a direction different from the direction of the arrow 42 is shown.
When the foot 11 is moved in three directions, the foot 11 comes into contact with the second switch block 25 attached to the foot switch base 18. As a result, the surgeon further moves his foot 11 to the arrow
The light detection switches 26 and 2 are moved to the positions moved in three directions.
Recognize that 7 exists.

Further, in order for the operator to move the foot 11 in the direction of the arrow 43 and operate the photodetection switches 26 and 27 corresponding to the release switch 5 and the automatic focusing switch 6 in the first embodiment, This can be achieved by moving the foot 11 onto the foot rest 28 provided on the second switch block 25 and stepping on the photodetection switches 26 and 27 as in the case of the first switch block 21. At this time, similarly to the above, the functions of the light detection switches 19 and 20 are stopped by operating either of the light detection switches 26 or 27.

Next, the first and second switch blocks 21 and 25 and the foot switch base 1 are selected depending on the operator's preference.
In order to change to the mounting position for 8, the first and second switch blocks 21, 25 are first removed from the foot switch base 18. Pins 31 provided on the first and second switch blocks 21 and 25,
The contacts 32 have the same shape, and the positions of the positioning holes 29 and the contacts 30 provided in the foot switch base 18 are also the positions facing the pins 31 and the contacts 32 of the first and second switch blocks 21 and 25. Since it is provided, the first switch for the foot switch base 18 is simply
And it is achieved only by exchanging the mounting positions of the second switch blocks 21 and 25.

According to the present embodiment, as described above, the height difference of the input switches is divided into two directions, the arrow 42 direction and the arrow 43 direction.
Since it is provided in the direction, the 3 shown in the first embodiment is provided.
The same effect as the arrangement of the input switches in two steps can be implemented in two steps, and the operator can operate the input switches by moving the foot less, which facilitates the operation.

Further, since the input switches having different functions are provided in different directions, the operator can easily discriminate the input switches and prevent erroneous operation. Further, since the light detection switch is used as the input switch, the operation of pressing the input switch is not required, and therefore the operator can easily operate the foot switch 1 and the burden on the operator can be reduced.

The first and second switch blocks 2
When the light detecting switches 22, 23 and 26, 27 provided on the first and the second 25 operate, the light detecting switches 19 and 2
With the simple configuration that the function of 0 is stopped, it is possible to provide the foot switch 1 that can prevent erroneous operation at low cost.
Further, the first and second switch blocks 21, 2 are
With the detachable structure of the foot switch 5, the foot switch 1 can be changed to a height difference according to the operator's preference by an inexpensive and simple method.

7 to 14 show the third embodiment, and the same components as those of the first and second parts are designated by the same reference numerals and the description thereof will be omitted. FIG. 7 shows the overall structure of the foot switch 1. The seesaw switches 3 and 4 for zooming and focusing and the foot rest 9 are arranged in parallel with the longitudinal direction of the foot switch 1. In the figure, 44 is provided at an intermediate position between the release switch 5 and the automatic focusing switch 6,
The foot rest portion is provided at a position where the foot rest portion 9 is extended, and is higher than the switch upper surfaces of the release switch 5 and the automatic focusing switch 6 with respect to the floor surface.
In the figure, reference numeral 45 denotes a bellows provided in a portion corresponding to a height difference between the release and automatic focusing switches 5 and 6 and the magnification and focusing seesaw switches 3 and 4, and the entire circumference of the foot switch 1 is provided. It is provided over. Similarly, reference numeral 46 in the drawing denotes a bellows provided in a portion corresponding to a height difference between the release / automatic focusing switches 5 and 6 and the coarse movement switches 7 and 8, and extends over the entire circumference of the foot switch 1. Is provided.

FIG. 8 shows an assembly structure of the foot switch 1. Reference numeral 47 in the drawing denotes a cover formed of an elastic member such as rubber that forms the external shape of the foot switch 1 and that has the input switches 3 to 8, the foot rests 9 and 44, and the bellows 45 and 46. . The cover 47
The internal shape of is substantially the same as that of the main body described later. Reference numeral 48 in the figure denotes a main body portion having a shape substantially the same as the internal shape of the cover 47, and the main body portion 48 has the cover 47.
The contact portions 49 to 56 having the same structure are provided at positions facing the input switches 3 to 8 provided in the above. 57 in the figure
Is a back cover that can be attached to the main body 48 with screws or the like. The foot switch 1 is composed of a cover 47, a main body 48, and a back cover 57.

FIG. 9 shows the main body 48 as seen from the direction of arrow 58. The main body 48 is provided with a plurality of screw parts 59 to which the back cover 57 can be attached.
A strip-shaped protrusion 60, which is formed one step higher than the surface on which the screw portion 59 is provided, is provided on the entire inner circumference of the main body portion 48 from the position.

FIG. 10 shows a state in which the cover 47 and the back cover 57 are attached to the main body 48. The cover 47 is formed so as to cover the entire main body 48.
8 and when the back cover 57 is attached to the main body 48 with screws or the like, the cover 47 is attached to the main body 48.
Further, it has a flange portion 61 that is sandwiched by the back cover 57.

The size of the flange 61 is large enough to cover the protrusion 60 provided on the main body 48. In the flange portion 61, the main body portion 48 and the back cover 5 are attached.
When attaching 7, the screw portion 5 provided on the main body portion 48
A hole through which a screw or the like penetrates is provided at a position opposite to 9. Similarly, the back cover 57 is also provided with a hole through which a screw or the like penetrates at a position facing the screw portion 59 provided on the main body 48.

FIG. 11 shows the contact portion 4 provided on the main body portion 48.
9 to 56 are shown. The contact parts 49 to 56 have the same configuration, and when the cover 47 is attached to the main body part 48, the shapes of the input switches 3 to 8 provided on the cover 47 facing the positions of the contact parts 49 to 56 are the same. Since they are different, the contact portion 53 will be described here.

Reference numeral 62 in the drawing denotes a switch shaft having the same internal shape as the release switch 5 provided on the cover 47 and having a size capable of being fitted into the release switch 5. The switch shaft 62 has a return spring 63 for applying a force to the main body 48 in a direction to constantly extend the spring itself.
It is attached movably in the direction of arrow 64 via.

Reference numeral 65 in the drawing denotes a retaining ring attached to the switch shaft 62. Reference numeral 66 in the figure is attached to the main body portion 48, and is an arrow 64 of the switch shaft 62.
The contact point is a contact which is turned on / off by the movement in the direction, and a motor 68 is connected to the contact point 66 via a motor drive circuit 67. The motor 68 is a motor that drives a release of a photography device (not shown). In the other contact portion, for example, the contact portion 55, the input switch 7 provided on the cover 47 has a shape shown by a broken line 69.

FIG. 12 shows a sectional shape of the variable power seesaw switch 3. Further, since the structure of the focusing seesaw switch 4 is the same as that of the magnification changing seesaw switch 3, the description thereof will be omitted. In the figure, reference numeral 70 denotes a fulcrum portion which is provided on the side of the cover 47 to which the main body portion 48 of the variable power seesaw switch 3 is connected and which is located between the contact portions 49 and 51. The fulcrum portion 70 has a semicircular cross-sectional shape, and the variator seesaw switch 3 is used.
The width of is provided throughout. In the figure, 71 is a contact portion 49.
This is a zooming motor that gives either forward or reverse rotation to a known zooming mechanism provided in the surgical microscope by turning on and off the contacts 66 provided at and 51.

FIG. 13 shows a cover 72 having an external shape different from that of the cover 47. The inner shape of the cover 72 is substantially the same as the shape of the main body 48 like the cover 47, and is attachable to and detachable from the main body 48.

FIG. 14 shows a sectional shape of the main body 48. Reference numeral 73 in the drawing is an adjustment block fixed to the main body 48 so as to be adjustable in the direction of arrow 76 by an adjusting screw 75 via a spring 74 in which a force is always applied to extend the spring itself, The adjustment block 73 is provided with the above-mentioned contact portions 53 and 54. Similarly, 7
Reference numeral 7 denotes an adjusting block fixed to the main body 48 via a spring 74 by an adjusting screw 75 so as to be adjustable in the direction of arrow 76, and the adjusting block 77 has the contact portion 55 described above.
And 56 are provided. In the figure, 78 is the back cover 5
7 is an adjustment hole provided at the position where the adjustment screw 75 is provided.

In order to assemble the foot switch 1 in a state where it can be used by the operator, the cover 47 is attached to the main body 48 so as to wrap the entire main body 48, and the foot switch 1 is provided on the main body 48. Contact points 49-5
The input switches 3 to 8 and the switch shaft 62 provided on the cover 47 at the position opposite to 6 are mounted.

Next, the back cover 57 is fixed to the main body 48 with screws or the like so as to sandwich the flange 61 provided on the cover 47. At this time, the flange portion 61
Is crushed over the entire circumference by the projection 60 provided on the main body 48. Next, the operator releases the release and focusing switches 5 and 6 and the seesaw switch 3 for zooming and focusing.
By rotating the adjusting screw 75 with a tool or the like through the adjusting hole 78 in order to adjust the height difference between the adjusting blocks 73 and 4, the adjusting block 73 moves in the direction of arrow 76. This is achieved by the bellows 45 provided on the cover 47 deforming as the adjusting block 73 moves.

Similarly, the adjusting block 77 is moved in the direction of arrow 76 by rotating the adjusting screw 75 in order to adjust the height difference between the release and automatic focusing switches 5 and 6 and the coarse movement switches 7 and 8. The cover 4
This is achieved by deforming the bellows 46 provided on the No. 7. Next, when the operator operates the foot switch 1 in order to operate a plurality of functions of the surgical microscope, the operator places the foot 11 on the foot rest 9 provided on the foot switch 1 to perform the operation. And so on.

Further, in order to change the observation magnification, the operator moves the foot 11 to the magnification seesaw switch 3 provided on the foot switch 1 in the direction of arrow 79, and as shown in FIG. The foot 11 is placed on the double seesaw switch 3, and the foot 11 is tilted in the direction of the arrow 80 with the fulcrum portion 70 as the fulcrum. Then, the variable power seesaw switch 3 is deformed, and the switch shaft 62 provided on the contact portions 49 and 51 moves in the direction of arrow 64. As a result, the contact 6
6 is turned on, the magnification changing motor 71 rotates, and a known magnification changing mechanism is driven. Also, when the operator operates the focusing seesaw switch 4, the well-known focusing mechanism is driven by the same action.

When the operator performs the above-mentioned operation,
The foot 11 is moved on the footrest portion 9 in the directions of arrows 79 and 80 indicated by, and the input switches 3 to 8 are depressed. At this time, when the operator moves the foot 11 on the foot rest 9 in the direction of arrow 80, the foot 11 of the operator touches the foot rest 44, so that the operator further moves the foot 11 in the direction of arrow 80. Recognize that the release and automatic focusing switches 5 and 6 are present at the selected positions.

Therefore, in order for the operator to operate the release and automatic focusing switches 5 and 6, the foot rest 9
The surgeon moves the foot 11 in the direction of the arrow 80 to move the foot rest 4
The foot 11 is brought into contact with 4. Next, the foot 11 is raised to the height of the foot rest 44 and further moved in the direction of the arrow 80 to guide the foot 11 to a position where the release switch 5 and the automatic focusing switch 6 can be operated. Further, when the operator moves the foot 11 in the direction of arrow 80, the operator's foot 11 moves the coarse movement switch 7
Due to the contact of the height differences provided by and 8, the operator recognizes that the coarse movement switches 7 and 8 are present when the foot 11 is further moved in the direction of the arrow 80.

To change the foot switch 1 to the shape and height of the input switch sections 3 to 8 and the foot rests 9 and 44 which suit the operator's preference and surgical style, the foot switch 1 should be operated before operation. Cover 47 that forms the outer shape of 1
Is removed from the main body 48, and only the outer shape of the cover 47 is different, for example, a cover 72 is attached to the main body 48.

According to the present embodiment, as described above, the adjustment blocks 73 and 77 are attached to the main body 48 by the arrow 76.
The adjustment blocks 73 and 77 of the cover 47 that is adjustable in the direction and covers the entire main body 48.
Since the bellows 45 and 46 are used for the moving parts, the height difference between the zoom and focus seesaw switches 3 and 4 and the release and automatic focus switches 5 and 6, and the release and automatic focus switches 5 and 6 Since the height difference between the coarse movement switches 7 and 8 can be adjusted to an arbitrary height desired by the operator, not only the malfunction prevention but also the foot switch 1 can be easily adjusted to the operator's preference.

Further, since the shapes of the input switches 3 to 8 are determined by the cover 47 made of an elastic material such as rubber, the cover 47 is prepared according to the operator's preference.
With a simple operation of replacing the entire cover 47, the foot switch 1 having an input switch shape suitable for the operator's preference can be obtained. In addition, the main body 4
It is possible to make all the contact points 49 to 56 provided in 8 common, and the foot switch 1 can be provided at low cost.

Further, by changing the shapes of the input switches 3 to 8 provided on the cover 47 individually, the foot 11
Since the input switch sections 3 to 8 can be clearly discriminated from each other, it is possible to further prevent an erroneous operation. Further, since the flange 61 is crushed by the protrusion 60 by sandwiching the cover 47 or 72 with the back cover 57 with respect to the main body 48, the main body 48 and the cover 47 or 72 can be easily waterproofed. .

One end of a foot rest 9 provided near the frequently used variable magnification and focusing seesaw switches 3 and 4 is extended, and the middle of the less frequently used release switch 5 and automatic focusing switch 6 is provided. By providing the foot rest portion 44 which is located, the operator only moves the foot 11 along the foot rest portions 9 and 44 to use the seesaw switches 3 and 4 for zooming and focusing which are frequently used. Since it is possible to easily guide the foot 11 to the position where the release switch 5 and the automatic focusing switch 6 which are infrequently exist, and it is not necessary to search for the input switch, the working efficiency of the operator is good.

Further, since the footrest portion 44 is formed higher than the switch upper surfaces of the release switch 5 and the automatic focusing switch 6 with respect to the floor surface, the release switch 5 and the automatic focusing switch 6 which are less frequently used are used. It can also contribute to the malfunction of such an input switch.

According to the above-described embodiment, the following configuration can be obtained.

(Supplementary Note 1) In a foot switch of a surgical microscope having a plurality of operation switches for operating a plurality of functions, among the plurality of operation switches, an operation switch that is frequently used is set to a low position near the floor surface. , The operation switches that are rarely used are sequentially arranged with a height difference at a high position from the floor surface, and the height difference is a range in which the operation switch arranged in the high position cannot be operated when the operation switch arranged in the low position is operated. A foot switch for a surgical microscope.

(Supplementary Note 2) The foot switch of the surgical microscope according to Supplementary Note 1, wherein the operation switch is a push button switch.

(Supplementary Note 3) The foot switch of the surgical microscope according to Supplementary Note 1, wherein the operation switch is a light detection switch.

(Supplementary Note 4) The foot switch of the surgical microscope according to any one of Supplementary Notes 1 to 3, further comprising an adjusting mechanism for adjusting the height difference.

(Supplementary Note 5) There is a detection means for detecting that the surgeon's foot has climbed over the height difference, and by operating the detection means, the input switch arranged at a low position in the height difference is detected. The foot switch of the surgical microscope according to any one of appendices 1 to 4, characterized in that the function is stopped.

(Supplementary Note 6) The foot switch of the surgical microscope according to Supplementary Note 5, wherein the detection means is a light detection switch.

According to appendices 1 to 4, when operating the frequently used operating switch without accidentally increasing the size, it is possible to prevent the infrequently used operating switch from being accidentally operated.
An inexpensive and easy-to-use foot switch for a surgical microscope can be provided.

According to appendices 5 and 6, when operating a switch that is used infrequently, it is possible to operate a switch that is frequently used and is not mistakenly placed in a low position, and is inexpensive and has good operability. A microscope foot switch can be provided.

As a foot switch of a surgical microscope for operating a plurality of functions of the surgical microscope, one having a structure as shown in FIG. 15 is known. That is, 81 in the figure
Is a foot switch, and is connected to a surgical microscope (not shown) via a connection cable 82. The foot switch 81 is provided with the following input switch as an operation switch.

Reference numeral 83 is a seesaw switch for changing the magnification, which is incorporated in the surgical microscope and is driven by a motor or the like, and similarly 84 is a known focusing mechanism, which is driven by the motor or the like. It is a seesaw switch for focusing. In the figure, reference numeral 85 is an XY fine movement switch for driving a well-known XY drive device for moving the observation field of view by moving the microscope body of the operating microscope by a motor or the like within a plane substantially perpendicular to the observation optical axis of the operating microscope. Is.

In the figure, reference numeral 86 denotes a surgical microscope.
Reference numeral 87 is a coarse movement switch for driving a known coarse movement mechanism that moves the mirror body portion of the surgical microscope up or down with respect to the floor surface. In the figure, reference numeral 87 is a coarse movement switch 86 for moving the mirror body portion. This is a coarse movement switch that moves the mirror body portion in the opposite direction to the direction in which it is moved. Reference numeral 88 in the figure is a release switch for operating the release of a 35 mm camera attached to a well-known photographing device (not shown) provided in the surgical microscope, and 89 in the figure is provided in the surgical microscope. It is an automatic focusing switch that operates a known automatic focusing mechanism.

In the figure, reference numeral 90 denotes a footrest portion, which is provided on the foot switch 81 and is called a footrest, which is fixed between the magnification / focusing seesaw switches 83 and 84 and is used for the magnification / focusing seesaw. The switches 83 and 84 are set to be higher than the switch upper surface with respect to the floor surface. In addition, the coarse movement switch 86
And 87, the release switch 88, and the automatic focusing switch 89 are arranged at a position higher than the foot rest 90 with respect to the floor.

Further, in recent years, the number of medical devices used in the operating room is also increasing, and there are many cables for medical devices other than the operating microscope on the floor of the operating room, and the foot switch 81 is placed in a place. It may be difficult to continue the work while keeping the orientation of the foot switch 81 with respect to the operator constant during the surgery due to limitation or change of the observation direction in the surgery. Apart from this, the orientation of the foot switch 81 with respect to the surgeon may be changed depending on the surgeon's preference and the method of surgery.

However, the above-mentioned foot switch 81 is used in the orientation shown in FIG. 15 when viewed from the operator depending on the condition of the operating room and the style of operation, or the operator's preference, and 90 in FIG. It may be used by rotating in either left or right direction. When the foot switch 81 is used in the direction shown in FIG. 15 by the operator, the operator places one foot on the foot rest 90 and uses the seesaw switches 83 and 84 for zooming and focusing on the foot rest 90 as a fulcrum. age,
The operator operates the input switches with the toes and the heel respectively.

When the foot switch 81 is used by rotating the foot switch 81 by 90 degrees to the left or right with respect to the operator as described above, the operator selects either the zooming or focusing seesaw switch 83 or 84. The operation is performed by moving the foot on the input switch. As described above, unlike the case described above, it becomes impossible to operate the magnification and focusing seesaw switches 83 and 84 with the footrest 90 as a fulcrum.

Therefore, the foot switch 8
If the direction of 1 is changed, the operability of the foot switch 81 becomes completely different. Therefore, in order to efficiently proceed with the surgery, it is necessary for the operator to become familiar with the two types of operability in advance. However, actually, in a situation in which it is necessary to familiarize yourself with the operation of equipment other than the operating microscope, the operability changes even if the orientation of the foot switch 81 with respect to the operator is changed despite the same foot switch 81. This causes a decrease in work efficiency.

Further, in the operating room, many cables for medical equipment other than the operating microscope crawl around the floor, which may limit the place where the foot switch 81 is placed and the orientation of the foot switch 81 with respect to the operator. is there. However, the conventional foot switch 81 is difficult to use because the operability changes when the orientation of the foot switch 81 is changed for the operator as described above.

FIGS. 16 to 19 show the fourth to sixth embodiments, which are foot switches in which the above-mentioned problems are solved, such as the condition of the operating room, the change of the observation direction in the operation, the operator's preference, etc. Therefore, even when the orientation of the foot switch with respect to the operator is changed, a foot switch having the same operability can be provided with a simple configuration.

FIG. 16 shows the fourth embodiment of the foot switch of the surgical microscope, and shows the overall structure of the non-foot switch. Reference numeral 91 in the drawing denotes a foot switch which can be connected to a surgical microscope via a connection cable 92 and which has a plurality of input switches for operating a plurality of functions of the surgical microscope. The input switches will be described later in 95 to 9
8 switches. The connection cable 92 is connected and fixed to the foot switch 91, and the connection cable 92
The connector section 93 provided at the tip of the can detachably attach to the surgical microscope.

Reference numeral 94 in the figure denotes a footrest portion called a footrest, which is provided at a substantially central position of the foot switch 91 and has a square shape. In the figure, reference numeral 95 denotes a variable power switch for outputting to the surgical microscope a signal for driving a well-known variable power mechanism incorporated in the surgical microscope in a direction of enlarging an observation image by a motor or the like. Similarly, reference numeral 96 in the drawing denotes a variable power switch for outputting a signal for driving the variable power mechanism in the direction of reducing the observation image to the surgical microscope, and an intermediate position between the variable power switch 96 and the variable power switch 95. The variable power switches 95 and 96 are disposed on the foot switch 91 so that the footrest portion 94 is disposed on the footswitch 91.

Reference numeral 97 in the figure denotes a focusing switch for outputting a signal for driving a known focusing mechanism built in the surgical microscope by a motor or the like to the surgical microscope. Similarly, reference numeral 98 in the drawing denotes a focusing switch for outputting a signal for driving a motor or the like in a direction for moving the focusing position in a direction opposite to the direction in which the focusing switch 97 moves, and the scaling switch. Similar to 95 and 96, the focusing switches 97 and 98 are arranged on the foot switch 91 so that the footrest 94 is located at an intermediate position between the focusing switches 97 and 98. Further, the height of the footrest portion 94 is set higher than the height with respect to the floor surface when the magnification and focus switches 95 to 98 are operated.

According to the above-mentioned configuration, the operator connects the connection connector 93 of the connection cable 92 provided on the foot switch 91 to the surgical microscope and inputs the operation of the surgical microscope. A foot is placed on a foot rest 94 provided on the foot switch 91, and the foot rest 94 is used as a fulcrum, and an arrow 99 like a foot 100 or 100 'is used.
Move the foot in the direction to zoom and focus switches 95-9
Step 8 and perform operation input.

At this time, for example, in order to perform a magnification change operation, the foot is moved with the foot rest 94 as a fulcrum and the foot is placed on the foot rest 94 like the foot 100, and the magnification change switch 95 is operated by the operator's toe or heel. And 96. Further, when the focusing operation is performed, the footrest portion 94 is used as a fulcrum and the arrow 99
The foot 100 is rotated in the direction as shown by the foot 100 ', and the focus switches 97 and 98 are similarly operated with the foot rest 94 as a fulcrum.

Even when the orientation of the foot switch 91 with respect to the operator is changed during the operation depending on the situation in the operating room and the operator's preference, the operator places the foot 100 on the foot 100 as a fulcrum as described above. Is operated to input the variable power and focusing switches 95 to 98.

According to the above-described fourth embodiment, the footrest portion 94 is formed in a square shape, and the magnification and focusing switches 95 to 98 are arranged symmetrically with respect to the footrest portion 94. In addition, it is possible to realize a small-sized foot switch 91 with an inexpensive structure. Also, variable power switches 95 and 96 and focusing switches 97 and 9
Since two sets of forward / reverse rotation designating switches such as 8 can be operated by stepping on the operator's toe and heel, when the operator performs a series of operations, the foot switch 91 is used to move the foot 1
Operability is good because it is not necessary to move 00 a lot.

Although the foot rest 94 is square in the fourth embodiment, it is needless to say that the same effect can be obtained if the foot rest 94 is circular or spherical.

FIG. 17 shows the fifth embodiment, and the same components as those in the fourth embodiment are designated by the same reference numerals and the description thereof will be omitted. Reference numeral 101 in the figure denotes a cross-shaped footrest portion provided on the footswitch 91.
On the other hand, the input switches 95 to 98 are vertically and horizontally symmetrically arranged. The height of the footrest 101 is set higher than the height from the floor surface when the input switches 95 to 98 are operated. In the figure, 102 is the footrest 1
The joystick switch that drives the well-known XY fine movement device that moves the observation field of view by moving the microscope body of the surgical microscope to a plane substantially perpendicular to the observation optical axis is provided at a position where one end of 01 is extended. XY switch.

With the above-described configuration, in order for the operator to input the operation of the surgical microscope using the foot switch 91, the operator places the footrest portion 10 provided on the foot switch 91.
1. Place the foot on the foot 100 or 100 'shown in FIG.
Then, the zooming and focusing switches 95 to 98 are stepped on. At this time, the operator places the foot 100 near the center of the cross-shaped foot rest 101 and moves the foot 100 in the direction of the arrow 103, or places the foot 100 'on the foot switch 91 like the foot 100'. If it is, move it in the direction of the arrow 104 to move the foot rest 101.
With the fulcrum as a fulcrum, the operator operates the zooming and focusing switches 95 to 98 with the toes or heel of the operator.

Further, when the operator moves the foot 100 in the direction of arrow 104 on the foot rest 101 in order to move the observation field of view, the operator's foot 100 is moved to the XY switch 10.
Guided to 2. Further, the operator puts the toe on the XY switch 1
This is achieved by moving the foot 100 in the directions of the arrows 103 and 104 and operating the XY switch 102, which is mounted on the No. 02 and is constituted by a known joystick switch.

According to the above-described structure, the footrest portion 101 is formed in a cross shape, and the input switches 95 to 98 are arranged symmetrically with respect to the footrest portion 101.
Since the operator can perform the stepping operation of the input switches 95 to 98 simply by moving the foot 100 in parallel on the foot switch 91, a method of rotating the foot 100 with respect to the footrest 94 of the fourth embodiment is The foot 100 of the surgeon moves naturally, and a foot switch 91 with better operability can be provided. Further, by disposing the XY switch 102 at a position where one end of the footrest portion 101 is extended,
Since the operator can easily confirm the position of the XY switch 102, the operability is good.

18 and 19 show the sixth embodiment, and the same components as those in the fourth and fifth embodiments are designated by the same reference numerals and the description thereof will be omitted. Figure 18 shows the foot switch 9
1 shows the overall configuration of No. 1. In the figure, reference numeral 102 denotes an XY switch which is provided substantially at the center of the foot switch 91 and is composed of the joystick switch described in the fifth embodiment. Reference numeral 105 in the drawing denotes a footrest portion provided on the foot switch 91 and formed radially at four positions with respect to the XY switch 102. The foot rest 1
Reference numeral 05 is vertically and horizontally symmetrical with respect to the XY switch 102. The input switches 95 to 98 are vertically and horizontally symmetrically arranged with respect to the footrest 105. The input switches 95 to 98 are non-contact switches which will be described later in the present embodiment, and are configured by, for example, photodetection switches.

FIG. 19 shows the structure of a photodetection switch which is a non-contact switch which constitutes the input switches 95 to 98. However, since the input switches 95 to 98 have the same configuration, the variable power switch 95 will be described here.

Reference numeral 106 in the drawing denotes a light emitting element provided on the foot switch 91, and a power source 107 is connected to the light emitting element 106. In the figure, reference numeral 108 denotes a light receiving element provided in the foot switch 91 for receiving the light 109 emitted from the light emitting element 106, and the amplifier circuit 1
20, a motor drive circuit 121, and a variable power motor 122 are sequentially connected. The operator places a foot 10 on the footrest 105.
In the state where 0 is placed, the amount of light 109 emitted from the light emitting element 106 is such that the light receiving element 108 cannot receive the light even when reflected by the operator's foot 100, and the light emitting element 106 is placed on the foot 100. The light emitting element 106 and the light receiving element 108 are arranged with respect to the foot switch so that the light 109 from the light emitting element 108 is received by the light receiving element 108 only when the light emitting element 108 is brought close to the position H.

The height of the foot rest portion 105 is higher than the position H where the light 109 emitted from the light emitting element 106 is reflected by the operator's foot 100 and the light receiving element 108 can receive light, relative to the floor surface. Is configured.

With the above-described structure, in order for the operator to input the foot switch 91 to operate the surgical microscope, the operator must move the foot mount portion 105 provided on the foot switch 91,
Place the foot as shown on foot 100 or 100 'in FIG. Next, the foot 100 is moved in the direction of the arrow 123 in order to perform a stepping operation on the zooming and focusing switches 95 to 98.

Therefore, the operator, for example, performs a variable magnification operation,
The operator's foot 100 is tilted with the footrest 105 as a fulcrum, and the toes or heels of the light are emitted from the light emitting element 106.
By moving 9 to the position H where the light is received by the light receiving element 108 due to the reflection of the operator's foot 100, the signal output from the light receiving element 108 is amplified by the amplifier circuit 120, and the further amplified signal drives the motor. The circuit 121 converts the signal into a signal for driving the variable power motor 122, and each of the variable power motors 122 rotates in a specified direction to drive a well-known variable power mechanism (not shown). The same effect is achieved when performing a focusing operation.

Next, in order for the operator to move the observation visual field,
When the foot 100 is moved on the foot rest portion 105 provided on the foot switch 91, the operator's foot 100 is guided to the XY switch 102, and the operator puts the toe on the foot and is configured by a well-known joystick switch. XY switch 102
Is operated by moving the foot 100 in the directions of arrows 123 and 124, and the well-known fine movement mechanism is driven.

According to the configuration described above, the foot switch 9
1. An XY switch 102 is arranged substantially in the center of 1, and four footrests 105 are provided radially with respect to the XY switch 102. Further, input switches 95 to 98 are arranged vertically and horizontally symmetrically with respect to the footrest 105. By arranging,
The foot switch 91 of the fifth embodiment can be downsized, and the XY switch 102 can be provided without impairing the operability of the input switches such as the magnification and focus switches 95 to 98. is there. Further, by arranging the foot rests 105 radially with respect to the XY switch 102, the operator can move the foot 1 on the foot rests 105.
The XY switch 10 can be easily moved by simply moving 00.
The position of 2 can be confirmed and the operability is good. Further, since the input switches 95 to 98 are configured by the photodetection switches which are non-contact switches, there is no need to press the input switch. Therefore, the operator can easily operate the foot switch 91 and the operator can easily operate the foot switch 91. The burden can be reduced.

In the present embodiment, the non-contact switch is a photo-detecting switch, but it goes without saying that the same effect can be obtained by changing the photo-detecting switch to an ultrasonic sensor or the like.

According to the above fourth to sixth embodiments,
The following configuration is obtained.

(Supplementary Note 7) In a foot switch of a surgical microscope having a plurality of operation switches for operating a plurality of functions and a foot rest on which an operator rests his / her feet when operating the operation switches, the operation is vertically and horizontally symmetrical. A foot rest formed in a shape and higher than a switch operating point of the operation switch with respect to a floor surface, and the operation switch vertically and horizontally symmetrically arranged with respect to the foot rest. Foot switch for operating microscope.

(Supplementary Note 8) The foot switch of the surgical microscope according to Supplementary Note 7, wherein the operation switch is a push button switch.

(Supplementary Note 9) The foot switch of the surgical microscope according to Supplementary Note 7, wherein the operation switch is a light detection switch.

(Supplementary Note 10) The supplementary notes 7 to 7 characterized in that the input switch is two sets of forward / reverse rotation designating switches.
9. A foot switch for a surgical microscope according to any one of 9 above.

(Supplementary note 11) The foot switch of the surgical microscope according to supplementary note 10, wherein the two sets of forward / reverse rotation designating switches are focusing / magnifying power switches.

(Supplementary Note 12) The foot switch for a surgical microscope according to any one of Supplementary notes 7 to 11, wherein the footrest portion is formed in a square shape.

(Supplementary Note 13) The foot switch of the surgical microscope according to any one of Supplementary notes 7 to 11, wherein the footrest portion is formed in a cross shape.

According to Supplementary Notes 7 to 9, there are provided a plurality of operation switches for operating a plurality of functions of the surgical microscope and a foot switch having a foot rest portion on which an operator puts his / her foot when operating the device switch. , The upper and lower left and right symmetrically formed, by having a foot rest formed higher than the switch upper surface of the operation switch to the floor surface, and by having the input switch arranged vertically and horizontally symmetrical to the foot rest, The surgeon arranges the foot switch in any direction with respect to the surgeon,
The operation switch can be operated.

According to Appendix 10, the operation switch is set to 2
By using a pair of forward / reverse rotation designating switches, the operator places his / her foot on the footrest portion, tilts the foot on the footrest portion, and specifies the forward / reverse rotation with the operator's toe and heel. You can operate the switch.

According to Supplementary Note 11, by setting the forward / reverse rotation designating switch to be a focusing / magnifying power switch, the operator puts his / her foot on the foot rest and tilts the foot on the foot rest. , The operator can operate the focusing and variable power switches with the toes and heel.

According to Supplementary Note 12, by forming the footrest portion in a square shape, the operator rotates the operator's foot on the footrest portion and the operation switches are stepped on and off. Can be operated.

According to Supplementary Note 13, by forming the footrest portion in a cross shape, the operator can move the foot in parallel on the footrest portion and operate the operation switches by stepping.

Therefore, according to the configuration of the supplementary notes, it is possible to provide the operator with a foot switch whose operability and operability do not change even if the orientation of the foot switch is changed.

[0125]

As described above, according to the present invention, the operator can change the direction of the foot switch depending on the condition of the operating room, the change of the observation direction in the operation, the preference of the operator, and the like. It is possible to provide a foot switch for a surgical microscope that does not change in operability and operation feeling.

[Brief description of drawings]

FIG. 1 is a plan view of a foot switch showing a first embodiment of the present invention.

FIG. 2 is a side view of the foot switch according to the same embodiment.

FIG. 3 is a perspective view of a foot switch showing a second embodiment of the present invention.

FIG. 4 is an exploded perspective view of the foot switch according to the same embodiment.

FIG. 5 is an operation explanatory view showing a usage state of the foot switch of the embodiment.

FIG. 6 is an operation explanatory view showing a usage state of the foot switch of the embodiment.

FIG. 7 is a perspective view of a foot switch showing a third embodiment of the present invention.

FIG. 8 is an exploded perspective view of the foot switch according to the same embodiment.

9 is a view seen from the direction of arrow 58 in FIG.

FIG. 10 is a vertical cross-sectional side view showing the embodiment, in which a cover and a back cover are attached to the main body.

FIG. 11 is a vertical cross-sectional side view showing a contact portion provided in the main body portion of the same embodiment.

FIG. 12 is a vertical cross-sectional side view of the seesaw switch for scaling according to the same embodiment.

FIG. 13 is a perspective view showing the cover of the same embodiment.

FIG. 14 is a vertical cross-sectional side view of the main body of the same embodiment.

FIG. 15 is a plan view of a conventional foot switch.

FIG. 16 is a plan view of a foot switch showing a fourth embodiment of the present invention.

FIG. 17 is a plan view of a foot switch showing a fifth embodiment of the present invention.

FIG. 18 is a plan view of a foot switch showing a sixth embodiment of the present invention.

FIG. 19 is an operation explanatory view of the same embodiment.

[Explanation of symbols]

91 ... Foot switch, 94 ... Foot rest, 95-98 ...
Input switch

Claims (3)

[Claims] 1. A foot switch of a surgical microscope having a plurality of operation switches for operating a plurality of functions and a foot rest portion on which an operator rests his / her foot when operating the operation switches. Surgery comprising a footrest formed on the floor surface higher than a switch operating point of the operation switch, and the operation switch vertically and horizontally symmetrically arranged with respect to the footrest. Foot switch for microscopes. 2. The foot switch for a surgical microscope according to claim 1, wherein the input switch is two sets of forward / reverse rotation designation switches. 3. The foot switch for a surgical microscope according to claim 1, wherein the footrest portion is formed in a cross shape.