JP2005087528A - Handling device of operation microscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To diversify usage modes by simply and easily achieving moving operations to a using position and a retreat position. <P>SOLUTION: The upper lever 11 and a lower lever 12 of an input part 13 operated with pressure by being held in the mouth of an operator are movably arranged at a first position where a microscope mirror body 1 is movable and a second position where the mirror part 1 is fixed by regulating its movement. In a state where the input part 13 is moved to the second position, the input part 13 is fixed and supported to the mirror part 1 with power large enough to prevent natural movement. At the first position, the input part 13 is fixed and supported with the enhanced power. By energizing movement with power larger than the above power at the second position, the input part 13 is moved to be retreated from the mirror part 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a surgical microscope used for operation of a fine site in, for example, neurosurgery, and more particularly to an operating device for adjusting the position thereof.

  Generally, in this type of surgical microscope, the microscope body constituting the microscope is mounted on a pedestal that can be moved and fixed three-dimensionally, and is moved three-dimensionally through the pedestal to be operated as desired. It is placed opposite to and used for observation of the surgical site. This gantry has, for example, an arm structure in which a plurality of arms are coupled to a framework structure, and the entire structure is balanced by a counterweight or the like, and an electromagnetic brake is provided at the arm coupling portion. As a result, when the electromagnetic brake of the arm connecting portion is turned off, the frame can be moved three-dimensionally with a small amount of force. When the electromagnetic brake is turned on, the arm connecting portion is positioned and fixed by the electromagnetic brake. And fixed at the moving position.

  By the way, in such a surgical microscope, as an operation device for moving the gantry, for example, an operation device called a mouse switch that can be operated in addition to the mouth without using a hand by an observer (operator) is provided. It is done. This operating device is provided with a pressing operation part that can be adjusted in position on the mouth, and the pressing operation part is moved to an optimum position according to the operator, and the operator presses the pressing operation part in the mouth. Alternatively, there is a configuration in which by pressing and releasing the electromagnetic brake of the gantry is turned on / off, the gantry can be moved and fixed three-dimensionally. According to this, it is possible to improve the surgical efficiency because the operator does not need to use the hand when adjusting the movement of the gantry, but in the usage mode in which the microscope body part does not need to be moved, The presence of the pressing operation unit is an obstacle.

  Therefore, in such an operation device, the input unit in the mouth is slidably arranged in three orthogonal directions within the same plane as the operator's observation direction, and the input unit is arranged in three directions according to the operator. There is a configuration in which the input portion can be retracted by loosening the screw so that the position is fixed by sliding and adjusting the position by tightening with a screw at the slide position (see, for example, Patent Document 1). ).

In addition, the operating device is provided with an input unit that is attached to the mouth so as to be slidable in one direction within the same plane as the operator's observation direction and to be rotatable about an axis orthogonal to the observation direction. In some cases, the angle of the surgeon's mouth can be adjusted (for example, see Patent Document 2). Also in Patent Document 2, the input unit can be retracted by positioning and fixing the screw using a screw at the adjustment position and loosening the screw.
Japanese Patent Publication No. 52-46811 Japanese Patent Publication No.55-36116

  However, in both of Patent Documents 1 and 2, when the input unit becomes an obstacle during the operation and is retracted, the operator first loosens the screw through the drape and retracts the input unit, and then in the retracted position. Since the screw has to be fastened and fixed, the work is very troublesome.

  In Patent Document 2, it is possible to retreat the input unit by loosening the screw fixing the shaft in which the angle of the input unit is freely adjustable and retracting the input unit. Similarly, there is a problem that the operation is troublesome.

  The present invention has been made in view of the above circumstances, and is intended for a surgical operation that can easily and easily be moved to a use position and a retracted position and can diversify use forms as much as possible. An object of the present invention is to provide an operating device for a microscope.

  According to the present invention, a microscope body is supported by a pedestal that can be moved and fixed in a three-dimensional manner, and is pressed by a mouth, and the pedestal can be moved or positioned in conjunction with the pressing operation. The pressing operation section to be fixed, and the pressing operation section are movably held at a first position where the movement of the microscope body portion can be adjusted and a second position where the movement of the microscope body portion is restricted and fixed. The holding means, and the holding means are fixedly supported on the microscope body part with an amount of force that does not move spontaneously at the second position controlled by the pressing operation unit, and the force level at the first position controlled by the pressing operation unit. An operating device for a surgical microscope is configured to include a position fixing means that is raised and fixedly supported on the microscope body.

  According to the above configuration, the pressing operation unit is movably held via the holding unit at the first position where the microscope lens unit can be moved and the second position where the movement of the microscope lens unit is regulated and fixed. The holding means is fixedly supported on the microscope body portion with a force that does not naturally move at the second position via the position fixing means, and the force is increased and fixedly supported at the first position. In the second position, by moving and energizing with a force larger than the above-mentioned force, the position fixing by the position fixing means is released and the microscope body can be retreated. Therefore, it is possible to easily and easily move the pressing operation unit to the use position and the retracted position, and it is possible to diversify the usage forms of the microscope body as much as possible.

  In addition, the present invention is such that the microscope body is supported by a pedestal that can be moved and fixed in a three-dimensional manner, and is pressed in addition to the mouth, and the pedestal can be moved in conjunction with the pressing operation. Alternatively, the pressing operation unit for positioning and fixing, and the pressing operation unit can be freely moved to a first position where the movement of the microscope body part can be adjusted and a second position where the movement of the microscope body part is restricted and fixed. Holding means, holding means for fixing and holding the holding means to the microscope body part, and operably disposed on the holding means, selectively releasing the fixing force of the fixing means, The operation device of the surgical microscope is configured with release means for setting the holding means to be movable.

  According to the above configuration, the pressing operation unit is movably held via the holding unit at the first position where the microscope lens unit can be moved and the second position where the movement of the microscope lens unit is regulated and fixed. The holding means is fixedly supported by the microscope body through the fixing means, and in this second position, the releasing means disposed on the holding means is released to release the position fixing by the fixing means. Can be retracted from the microscope body. Therefore, it is possible to easily and easily move the pressing operation unit to the use position and the retracted position, and it is possible to diversify the usage forms of the microscope body as much as possible.

  As described above, according to the present invention, a surgical microscope that can be easily and easily moved to a use position and a retracted position to diversify use forms as much as possible. An operating device can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 shows an operating device for a surgical microscope according to a first embodiment of the present invention. A microscope body 1 is mounted on a gantry 2 that can be moved and fixed in a three-dimensional position. . The gantry 2 has, for example, an arm structure in which a plurality of well-known arms are coupled to a frame structure, and the entire structure is balanced by a counterweight or the like, and an electromagnetic brake (not shown) is provided at the arm coupling portion. As a result, when the electromagnetic brake (not shown) of the arm connecting portion of the gantry 2 is turned off, it can be moved three-dimensionally with a light force, and the electromagnetic brake (not shown) is turned on. The arm connecting portion is positioned and fixed by an electromagnetic brake (not shown), and is positioned and fixed at the moving position.

  The microscope body 1 is provided with a pressing operation unit 3 called a mouse switch that is pressed by an operator in addition to the mouth. As shown in FIG. 2, the upper and lower levers 11 and 12 are arranged in the pressing operation unit 3 via an input unit 13 serving as a holding unit so as to be freely pressed.

  The input portion 13 is rotated around the axis of the tilt shaft 15 as the support means (in the direction of arrow A) through the flange portions 141 and 142 while being sandwiched between the pair of flange portions 141 and 142 as the position fixing means. It is attached freely. The flange portions 141, 142 are integrated and provided so as to be movable in the axial direction (arrow B direction) with respect to the tilt shaft 15, and selectively at a predetermined position in the axial direction via the vertical position fixing screw 16. Positioning is fixed.

  As shown in FIG. 3, both ends of a clamp 17 having a substantially U-shaped cross section are penetrated and attached to the tip of the tilt shaft 15. The clamp 17 is supported at its intermediate portion so as to be rotatable about an axis (in the direction of arrow C) with respect to a rotation axis 18 which is substantially orthogonal to the tilt axis 15. It is attached to the middle part of the binocular tube 10 of the microscope lens unit 1 through the member 19. The front and rear position fixing screw 20 is screwed and attached to the clamp 17 so as to correspond to the rotation shaft 18. When the front and rear position fixing screw 20 is loosened, the clamp 17 and the tilt shaft 15 are rotated together with the rotation shaft. When the front / rear position fixing screw 20 is tightened at the rotation position, the clamp 17 is positioned and fixed at the rotation position, and the tilt shaft 15 is inclined at a predetermined angle in the arrow C direction. Is done.

  The lower lever 12 of the input unit 13 is rotatably provided via a shaft 121 as shown in FIGS. 4 and 5 and applies a biasing force counterclockwise in FIG. Is done. Further, the input unit 13 is provided with a micro switch 21 so as to face the base end of the lower lever 12. The microswitch 21 is connected to a control circuit (not shown), and is turned on when the lower lever 12 is rotated clockwise in FIG. 4 against the urging force of the leaf spring 122 to control the on signal. Output to a circuit (not shown).

  Further, the input portion 13 is provided with a position restricting lever 22 constituting a fixing force reinforcing means via a shaft 221, and a biasing force is applied in a counterclockwise direction in FIG. 4 via a leaf spring 222. One end of the position regulating lever 22 is opposed to the base end of the lower lever 12, and the other end is opposed to a locking groove 143 provided in the flange portion 142 so as to freely enter and exit. When the lower lever 12 is rotated clockwise in FIG. 4 against the biasing force of the leaf spring 122, one end of the position regulating lever 22 is biased by the leaf spring 122 by the lower lever 12. 4 is rotated counterclockwise in FIG. 4, and the other end portion is locked in the locking groove 143 of the flange portion 142 (see FIGS. 4B and 5B). Thereby, the input part 13 is firmly positioned and fixed with respect to the flange parts 141 and 142.

  The input unit 13 is provided with a plurality of plungers 23 at predetermined intervals in the axial direction. The plunger 23 is applied with an urging force in the outward direction via a spring member (not shown). On the other hand, a plurality of second locking grooves 144 are provided on the flange portion 142 so as to face the plunger 23 at intervals of 90 ° with respect to the locking grooves 143 around the axis. The distal end portion of the plunger 23 of the input portion 13 is fitted into one of the second locking grooves 144 around the axis (see FIGS. 4A and 5A). In a state where the plunger 23 is fitted in the second locking groove 144, the input portion 13 is positioned and fixed with an amount of force that does not naturally move with respect to the flange portions 141 and 142. Here, the plunger 23 is released from the pressing operation of the lower lever 12, the lower lever 12 is inverted by the urging force of the leaf spring 122, and the position regulating lever 22 is inverted by the urging force of the leaf spring 222, While the other end portion is detached from the locking groove 143 of the flange portion 142, the state of being fitted in the second locking groove 144 of the flange portion 142 is maintained. As a result, the rotation of the input portion 13 is restricted between the flange portions 141 and 142 with an amount of force that does not naturally rotate by the plunger 23.

  In the above configuration, when observing the surgical site, the surgeon first loosens the vertical position fixing screw 16 and adjusts the input unit 13 to the tilt shaft 15 in order to adjust the upper lever 11 and the lower lever 12 to an easy-to-use position. The vertical position fixing screw 16 is tightened at a height position that is easy to use, and the height position of the input unit 13 is set. Next, the operator loosens the front / rear position fixing screw 20 and rotates the input unit 13 around the rotation shaft 18 to set a position in the front / rear direction (arrow C direction), and fixes the front / rear position at the set position. The screw 20 is fastened, and the clamp 17 is fastened to the rotating shaft 18 to be positioned and fixed.

  Here, the operator bites the upper lever 11 and the lower lever 12 together with the mouth in order to move the surgical field while observing the surgical part while looking through the binocular tube 10 of the microscope body 1. The lever 12 is pressed against the upper lever 11. Thereby, the lower lever 12 rotates around the shaft 121 and pushes the micro switch 21 to turn it on (see FIG. 4B). Then, the micro switch 21 sends an ON signal to the control circuit (not shown), turns off the electromagnetic brake (not shown) that fixes the gantry 2 and releases the braking. At the same time, the position restricting lever 22 is pushed by the lower lever 12 and rotated about the shaft 221, and the tip end portion is accommodated in the locking groove 143 of the flange portion 142, so that the input portion 13 The rotation in the direction of arrow A is restricted (see FIGS. 4B and 5B).

  When the microswitch 21 is in the on state, the input unit 13 is firmly fixed to the binocular tube 10 without changing its position, and the surgeon bites the upper lever 11 and the lower lever 12 and The position of the microscope body part 1 is moved in accordance with the movement, and the observation visual field is moved. Then, the operator moves the microscope body part 1 to a necessary position, and opens the bited upper lever 11 and lower lever 12 from the mouth while setting the observation field of view. Then, the position restricting lever 22 is pushed back by the leaf spring 222 and detached from the locking groove 143 of the flange portion 142. Here, the lower lever 12 is pushed back by the leaf spring 122, the micro switch 21 is turned off, the electromagnetic brake (not shown) is turned on via the control circuit (not shown), and a braking state is established. 2 is positioned at the moving position, and the position of the microscope body 1 is fixed.

  Further, for example, when it is no longer necessary to move the position of the microscope body part 1 during the operation, the operator grasps the input part 13 by hand, and the distal end of the plunger 23 is the second locking groove 144 of the flange part 142. The tip of the plunger 23 is fitted into the adjacent second locking groove 144 by rotating around the tilt shaft 15 with a force equal to or greater than the amount of force that can be removed. As a result, the upper and lower levers 11 and 12 of the input unit 13 are retracted to positions that do not get in the way. Here, the input portion 13 does not naturally move after retraction because the distal end of the plunger 23 is fitted in the second locking groove 144 of the flange portion. When it is desired to move the microscope body 1 again, the input unit 13 is reversed around the tilt axis 15 with a force equal to or greater than the force with which the distal end of the plunger 23 comes out of the second locking groove 144. The second locking groove 144 is fitted. Here, the input unit 13 is returned to the initial position where the three-dimensional movement operation of the microscope body unit 1 can be performed (see FIGS. 4A and 5A).

  As described above, the operating device for the surgical microscope includes the upper lever 11 and the lower lever 12 of the input unit 13 that are pressed in addition to the mouth, the first position where the microscope body 1 can be moved, and the microscope mirror. The microscope body 1 is moved to the second position where the movement of the body part 1 is restricted and fixed, and the input part 13 is moved to the second position with a force that does not move naturally. The input unit 13 is fixedly supported and moved and biased with a force larger than the force amount at the second position so that the force amount is increased and fixedly supported at the first position. It was configured to be retracted from the body part 1. According to this, it is possible to easily and easily move the input unit 13 to the use position and the retracted position without misoperation, thereby diversifying the usage forms of the surgical microscope as much as possible. Can be achieved.

(Second Embodiment)
6 and 7 show an operating device for a surgical microscope according to the second embodiment of the present invention, and an effect substantially similar to that of the first embodiment is expected. However, in FIGS. 6 and 7, the same parts as those in FIGS. 1 to 5 according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, the input unit 30 constituting the holding means is arranged on the tilt shaft 15 so as to be rotatable in the direction of arrow A. The input unit 30 is similarly provided with an upper lever 31 and a lower lever 32, and is provided in a so-called semi-fixed state with respect to the tilt shaft 15 via an O-ring 33 constituting a position fixing means.

  The intermediate portion of the lower lever 32 is provided so as to be rotatable about a shaft 321, and an urging force is applied in a counterclockwise direction in FIG. 7 via a leaf spring 322. Further, the lower lever 32 is provided with a stopper 323 which constitutes a fixing reinforcing means at its base end portion so as to be rotatable via a shaft 324, and resists the urging force of the leaf spring 322 in the clockwise direction in FIG. The stopper 323 comes into contact with the tilt shaft 15.

  Further, a strain gauge 34 corresponding to a switch is attached to the lower lever 32, and a control circuit (not shown) is connected to the strain gauge 34, and the lower lever 32 resists the urging force of the leaf spring 322 as shown in FIG. When the stopper 323 contacts the tilt shaft 15 by rotating in the middle clockwise direction, the strain of the lower lever 32 is detected and strain information is output to the control circuit (not shown).

  In the above configuration, when observing the surgical site, first, the upper lever 31 and the lower lever 32 are moved along the tilt axis 15 while holding the input unit 30 in order to adjust the upper lever 31 and the lower lever 32 to positions that are easy for the operator to use. Adjust the height. Here, since the input unit 30 is in a semi-fixed state with respect to the tilt shaft 15 via the O-ring 33, the input unit 30 is moved by hand and does not move naturally even if the hand is released, and is kept at a desired position. Be drunk.

  Further, the input unit 30 adjusts the front-rear position fixing screw 20 provided on the tilt shaft 15 and rotates the tilt shaft 15 about the rotation shaft 18 (in the direction of the arrow C), so that the position in the front-rear direction is increased. Adjust. Then, after the position adjustment of the input unit 30 is completed, the operator holds the upper lever 31 and the lower lever 32 in the mouth while looking through the binocular tube 10 of the microscope lens unit 1 and observing the surgical unit. The lever 32 is pressed against the upper lever 31. Accordingly, as shown in FIG. 7B, the lower lever 32 rotates about the shaft 321, and at the same time, the stopper 323 rotates about the shaft 324 and is pressed against the tilt shaft 15. Here, the stopper 323 positions and fixes the position of the input unit 30 with respect to the tilt shaft 15 by being pressed against the tilt shaft 15.

  At the same time, when the stopper 323 is pressed against the tilt shaft 15, the lower lever 32 is distorted by the pressing force, and the generated strain is detected by the strain gauge 34. Strain information detected by the strain gauge 34 is input to the control circuit (not shown). This control circuit (not shown) allows the input unit 30 to operate independently even if the force that fixes the position of the input unit 30 of the stopper 323 moves the microscope body 1 based on the input strain information. It is detected whether or not the force that does not move is reached. In the detected state, the electromagnetic brake (not shown) that fixes the gantry 2 is turned off to release the braking. As a result, the input unit 30 is firmly fixed to the binocular tube 10 without changing its position, and the microscope body is adapted to the movement of the face while the operator bites the upper lever 31 and the lower lever 32. The position of the part 1 can be moved to adjust the observation visual field.

  Then, the operator opens the upper lever 31 and the lower lever 32 which are bitten in the mouth while the microscope body part 1 is moved to a necessary position. Then, the lower lever 32 is pushed back by the leaf spring 322, and the stopper 323 is also separated from the tilt shaft 15. Then, the lower lever 32 loses its strain and returns to the initial state, so that strain information from the strain gauge 34 is not input to the control circuit (not shown). As a result, the control circuit (not shown) turns on the electromagnetic brake (not shown) for fixing the gantry 2 to brake each part, thereby positioning and fixing the position of the microscope body part 1.

  Further, during the operation, when it is no longer necessary to move and adjust the position of the microscope body 1, the surgeon grasps the input unit 30 with his hand and moves around the tilt axis 15 with a force greater than the half-fixed force of the O-ring 33. Rotate and evacuate to a position that does not get in the way. Then, when it is desired to move and adjust the microscope body 1 again, the input unit 30 is grasped by hand and reversed around the tilt axis 15 with a force equal to or greater than the half-fixed force of the O-ring 33 and rotated to the original adjustment position. Move. At this time, the input unit 30 is positioned at the adjustment position by, for example, a plunger 301 disposed so as to freely enter and exit rearward orthogonal to the axis fitted in a locking groove 35 provided in the tilt shaft 15, for example. FIG. 7 (a)).

  According to the second embodiment, the input unit 30 and the tilt shaft 15 are configured in a semi-fixed state using the O-ring 33, and the input unit 30 and the tilt shaft 15 are fixed by using the stopper 323. In a non-operation state, the position of the input unit 30 with respect to the tilt shaft 15 can be adjusted by one operation of grasping and moving the input unit with respect to two degrees of freedom of sliding and rotation. The operability of position adjustment can be improved. In addition, since the strain gauge 34 is used as a switch, the amount of force to release the braking of the gantry 2 can be freely set, so that it can be set not to release the braking when an excessive force is applied. The sudden sudden movement of the body part 1 can be prevented.

(Third embodiment)
FIGS. 8 and 9 show the main part of the operating device for a surgical microscope according to the third embodiment of the present invention, and it is possible to expect substantially the same effect as in the first embodiment. However, in FIG. 8 and FIG. 9, the same parts as those in FIG. 1 to FIG. 5 according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, on the tilt shaft 15, the support member 40 constituting the holding means is arranged so as to be movable in the axial direction (direction of arrow B). The support member 40 is provided with an up / down fixing knob 41 so as to be adjustable, and is adjusted to move in the axial direction with respect to the tilt shaft 15 by an adjusting operation of the up / down fixing knob 41. A switch tilt shaft 42 is attached to the support member 40 so as to be substantially orthogonal to the tilt shaft 15. The switch tilt shaft 42 has a clamp shape that constitutes a pressing means, a position fixing means, and a fixing force enhancing means. The lever 43 is rotatably attached.

  The lever 43 is provided with a fixing force adjusting screw 44 so that the screwing can be adjusted. The fixing force adjusting screw 44 variably adjusts the tightening force of the lever 43 with respect to the switch tilt shaft 42 by adjusting the screwing. For example, the lever 43 is set in a semi-fixed state with respect to the switch tilt shaft 42. Further, a strain gauge 45 (see FIG. 9) is attached to the lever 43. The strain gauge 45 is connected to a control circuit (not shown), detects the amount of strain of the lever 43, and outputs strain information to the control circuit (not shown).

  In the above configuration, when observing the surgical site, first, in order to adjust the lever 43 to a position that is easy for the operator to use, the vertical fixing knob 41 is loosened, and the position of the support member 40 is moved along the tilt axis 15. Then, the upper and lower fixing knob 41 is tightened to fix the support member 40 on the tilt shaft 15. Next, the front / rear position fixing screw 20 is loosened, the clamp 17 is rotated about the rotation shaft 18, the front / rear direction is set to an easy-to-use position, and then the front / rear position fixing screw 20 is tightened to support the member. Position 40 is fixed.

  Then, after the position adjustment of the support member 40 is completed, the operator operates the lever 43 around the switch tilt shaft 42 in order to move the observation field of view while observing with the binocular tube 10 of the microscope body 1. Then, the lever 43 is added to the mouth and chewed. As a result, the clamp-like lever 43 is tightened on the switch tilt shaft 42 inserted in the intermediate portion thereof, and is positioned and fixed with respect to the switch tilt shaft 42.

  When the lever 43 is bitten in the operator's mouth in this manner, the lever 43 is distorted by the biting force, and the generated strain is detected by the strain gauge 45 and is sent to the control circuit (not shown). Is output. Here, even if the control circuit (not shown) moves the microscope body 1 while the strain information from the strain gauge 45 is engaged with the lever 43, the lever 43 is still connected to the switch tilt shaft 42. It is detected whether or not the force that does not rotate is reached, and in the detected state, the electromagnetic brake (not shown) that fixes the gantry 2 is turned off to release the braking. In a state where the electromagnetic brake (not shown) is turned off, the lever 43 is firmly fixed to the binocular tube 10 without changing its position, and the operator bites the lever 43 in the face. The position of the microscope body part 1 is moved and adjusted in accordance with the movement of the observation field, so that the observation field of view can be set.

  Next, when the surgeon moves the microscope body 1 to a necessary position, the operator releases the lever 43 that has been bitten. Then, the lever 43 is restored to its original initial state by its elastic force, and its strain is reduced. Therefore, the control circuit (not shown) controls the gantry 2 based on strain information from the strain gauge 45. The electromagnetic brake (not shown) to be fixed is turned on, the microscope body part 1 is fixed at the moving position, and a desired treatment is performed. When it is no longer necessary for the operator to move the position of the microscope body part 1 during the operation, the operator grasps the lever 43 with his hand and rotates about the switch tilt shaft 42 with a force more than a semi-fixed force. Energize and rotate it out of the way to retract. In this retracted position, the lever 43 is in a semi-fixed state with respect to the switch tilt shaft 42, so that it does not move naturally and the retracted position is secured.

  When the microscope body 1 needs to be moved, the lever 43 is again gripped and reversed around the switch tilt shaft 42 with a force equal to or greater than a half-fixed force, and returned to the initial movement adjustment position. Let

  At this time, the amount of force required to rotate the lever with respect to the switch tilt shaft 42 is set to a so-called semi-fixed state by adjusting the fixing force adjusting screw 44 to be screwed.

  In the third embodiment, since the lever 43 is configured to be semi-fixed and rotatable about the switch tilt shaft 42 orthogonal to the tilt shaft 15, the angle of the lever 43 can be freely selected. Therefore, it is possible to obtain a delicate operational feeling in addition to the operator's mouth, and to realize highly accurate movement adjustment. Further, according to this, it is possible to cope with the position of the operator's face that slightly changes depending on the position of the microscope body 1, and the angle can be adjusted even when the lever 43 is included in the mouth. Therefore, the position can be easily adjusted without using a hand during the operation.

(Fourth embodiment)
10 to 12 show an operating device for a surgical microscope according to a fourth embodiment of the present invention, and an effect substantially similar to that of the first to third embodiments is expected. However, in FIG. 10 to FIG. 12, the same parts as those in FIG. 1 to FIG. 5 according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, the tilting shaft 15 is sandwiched with a fixed clamp 50 having a slit structure that constitutes the fixing means so as to be slidable in the axial direction (arrow B direction). The fixed clamp 50 is an input section that constitutes the holding means. 51 is attached. A fixed screw 52 is attached to the fixed clamp 50 via a spring member 53 between the slit portions 501 (see FIG. 12). The spring member 53 applies a spring force in a direction in which the slit portion 501 of the fixed clamp 50 is closed, and presses and fixes the fixed clamp 50 to the tilt shaft 15.

  In addition, the fixed clamp 50 is provided with a release lever 54 constituting release means on one of the slit portions 501 so as to be rotatable about an axis substantially parallel to the tilt shaft 15 via a shaft 541. As shown in FIG. 11, the release lever 54 is provided with a release driving cam portion 542 opposite to the other of the slit portion 501 of the fixed clamp 50 and a grip 543 at the other end portion. It is provided facing the input unit 51.

  In the input unit 51, a lower lever 512 is similarly disposed in a rotatable manner so as to face the upper lever 511.

  In the above configuration, when observing the surgical site, first, in order to adjust the upper lever 511 and the lower lever 512 of the input unit 51 to positions that are easy for the operator to use, the grip 543 of the input unit 51 and the release lever 54 is used. Hold by hand. As a result, the release lever 54 is rotated around the shaft 3541, the cam portion 542 at the tip is pressed against the other of the slit portions 501 of the fixed clamp 50, and the spring portion 53 is crushed and the slit portion 501 is moved. Open and release the positioning and fixing to enable sliding along the tilt axis 15 of the input unit 51.

  Here, the operator moves the input unit 51 and the grip 543 of the release lever 54 with respect to the tilt shaft 15 while holding the input unit 51, and adjusts the upper lever 511 and the lower lever 512 to positions easy for the operator to use. . When the adjustment is completed and the operator releases the grip 543 of the release lever 54, the crushed spring member 53 is returned to the original position, and the slit portion 501 of the fixed clamp 50 is closed. When the fixed clamp 50 is moved, the spring member 53 is moved. Is fixed to the tilt shaft 15 via the fixed clamp 50.

  Next, the front / rear position fixing screw 20 is loosened, and the front / rear position fixing screw 20 is tightened in a state where the input unit 51 is rotated about the rotation shaft 18 and moved to an easy-to-use position of the upper lever 511 and the lower lever 512. . Then, the clamp 17 tightens the rotation shaft 18 to set the angle of the tilt shaft 15 in the arrow C direction, and the front-rear direction of the input unit 51 is positioned and fixed.

  Also, it is not necessary to change the observation position during the operation, and when the input unit 51 is retracted, the input unit 51 and the grip 543 of the release lever 54 are similarly pinched by hand to open the slitting unit 501 of the fixed clamp 50. In this open state, the input unit 51 and the grip 543 of the release lever 54 are pinched by hand, and the input unit 51 is rotated about the tilt shaft 15 and retracted. When the operator releases the grip 543 of the release lever 54 after retracting the input unit 51, the fixing clamp 50 is positioned and fixed to the tilt shaft 15 as described above.

  According to the fourth embodiment, when the input unit 51 is moved, the release lever 54 for releasing the fixation is disposed at a position where the input unit 51 is normally grasped by the hand, thereby providing the holding means. Since the positioning lock can be released as if the input unit 51 is grasped, the position of the input unit 51 can be adjusted in the direction of rotation and sliding easily and easily. In addition, the cam portion 542 is provided at the tip of the release lever 54, and the position where the release lever 54 is pressed is arranged at a position where the input portion 51 is normally grasped. High-precision handling operation is possible.

  Therefore, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

  For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiment, the problems described in the column of problems to be solved by the invention can be solved, and the effects described in the effects of the invention can be obtained. In some cases, a configuration from which this configuration requirement is deleted can be extracted as an invention.

  In addition, according to each of the embodiments described above, the present invention can also obtain the following configuration.

(Appendix 1)
Pressing means for pressing in addition to the mouth;
A switch that can be switched on and off in conjunction with the operation of the pressing means;
Holding means for holding the pressing means and the switch;
Support means for supporting the holding means;
In an operating device comprising:
Position fixing means for fixing the holding means with a force that does not move spontaneously by gravity so as to be movable with respect to the support means;
A fixing force strengthening means for strengthening a fixing force of the holding means and the support means in conjunction with the operation of the pressing means;
An operating device comprising:

(Appendix 2)
The operating device according to claim 1, wherein the fixing force strengthening means has a clamp shape that is rotatably engaged with the support means, and clamps and fixes the support means in conjunction with the pressing means.

(Appendix 3)
2. The operating device according to claim 1, wherein the fixing force strengthening means includes a groove provided in the support means and a stopper engaged with the groove in conjunction with the movement of the pressing means.

(Appendix 4)
The operating device according to claim 1, wherein the fixing force strengthening means includes a pressing member that presses the holding means in conjunction with the movement of the pressing means.

(Appendix 5)
The operating device according to any one of appendices 1 to 4, wherein the fixing force reinforcing means also serves as the position fixing means.

It is the top view which showed the arrangement configuration of the operating device of the surgical microscope which concerns on 1st Embodiment of this invention. It is the perspective view which took out and showed the press operation part of FIG. It is the top view which showed the state which looked at the principal part of FIG. 2 from the side surface. FIG. 3 is a cross-sectional view showing the input unit of FIG. 2 in cross section. FIG. 5 is a cross-sectional view showing a part of FIG. 4 in a direction substantially orthogonal to the tilt axis. It is the perspective view which showed the operating device of the surgical microscope which concerns on 2nd Embodiment of this invention. FIG. 7 is a cross-sectional view showing the input unit of FIG. 6 in cross section. It is the perspective view which showed the operating device of the surgical microscope which concerns on 3rd Embodiment of this invention. It is the top view which showed the partial side surface of FIG. It is the perspective view which showed the operating device of the surgical microscope which concerns on 4th Embodiment of this invention. It is the top view which showed the combination arrangement | positioning of the release lever and input part of FIG. FIG. 12 is a cross-sectional view illustrating the release lever and the input unit of FIG. 11 in a direction substantially orthogonal to the tilt axis.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Microscope body part, 2 ... Base, 3 ... Press operation part, 10 ... Binocular tube, 11 ... Upper lever, 12 ... Lower lever, 121 ... Shaft, 122 ... Leaf spring, 13 ... Input part, 141, 142 ... Flange portion, 143 ... locking groove, 144 ... second locking groove, 15 ... tilt shaft, 16 ... vertical position fixing screw, 17 ... clamp, 18 ... rotating shaft, 19 ... mounting member, 20 ... front and rear position fixing Screws, 21 ... micro switch, 22 ... position regulating lever, 221 ... shaft, 222 ... leaf spring, 23 ... plunger, 30 ... input section, 301 ... plunger, 31 ... upper lever, 32 ... lower lever, 321 ... shaft 322 ... leaf spring, 323 ... stopper, 324 ... shaft, 33 ... O-ring, 34 ... strain gauge, 35 ... locking groove, 40 ... support member, 41 ... vertical fixing knob, 42 ... switch tilt shaft, 43 ... lever 44 ... solid Force adjusting screw, 45 ... strain gauge, 50 ... fixed clamp, 501 ... slitting portion, 51 ... input portion, 511 ... upper lever, 512 ... lower lever, 52 ... fixing screw, 53 ... spring member, 54 ... release lever, 541 ... shaft, 542 ... cam portion, 543 ... grip.

Claims (3)

A gantry that supports the microscope body so as to be movable and fixed in three dimensions;
A pressing operation unit that is pressed in addition to the mouth, and is movable or positioned and fixed in conjunction with the pressing operation;
Holding means for movably holding the pressing operation portion at a first position where the movement of the microscope body portion can be adjusted and a second position where the movement of the microscope body portion is regulated and fixed;
The holding means is fixedly supported on the microscope mirror body with a force that does not naturally move at a second position controlled by the pressing operation unit, and the force is increased at the first position controlled by the pressing operation unit to increase the power. Position fixing means for fixing and supporting the body part;
An operating device for a surgical microscope, comprising:   2. The operating device for a surgical microscope according to claim 1, wherein the position fixing means is enhanced in force in conjunction with a pressing operation of the pressing operation unit. A gantry that supports the microscope body so as to be movable and fixed in three dimensions;
A pressing operation unit that is pressed in addition to the mouth, and is movable or positioned and fixed in conjunction with the pressing operation;
Holding means for movably holding the pressing operation portion at a first position where the movement of the microscope body portion can be adjusted and a second position where the movement of the microscope body portion is regulated and fixed;
Fixing means for fixing and supporting the holding means to the microscope body part;
A release means that is operably disposed on the holding means, selectively releases the fixing force of the fixing means, and sets the holding means to be movable;
An operating device for a surgical microscope, comprising:

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