JP4460905B2 - Surgical microscope - Google Patents

Description

  The present invention relates to a surgical microscope used in, for example, a surgical operation.

For example, Patent Literature 1 discloses a surgical microscope capable of moving a microscope unit to a desired position by an arm of a gantry unit and storing the microscope unit. This surgical microscope includes a movable part that can bend the arm, and the arm is bent by the movable part of the arm when the microscope part is shifted from the state of observing the surgical part to the retracted state. That is, the surgical microscope can be deformed into a state in which the arm is extended by the movable part and observation can be performed in the microscope part, and a state in which the arm is folded and the microscope part is stored. For this reason, when storing the microscope part of the surgical microscope, the surgical microscope becomes compact.
Utility Model Registration No. 3084123

  The movable portion of the arm of the surgical microscope disclosed in Patent Document 1 is held in a state where the arm is extended and not moved when the microscope portion is in an observable state. For this reason, the part of the movable part of the surgical microscope affects the entire apparatus of the surgical microscope, complicating the surgical microscope and increasing the size of the surgical microscope.

  Moreover, since the gantry part of the surgical microscope supports the microscope part having a specification for observing at a high magnification, high rigidity is required. For this reason, the movable part for storage used only when the surgical microscope is stored may adversely affect the rigidity of the gantry.

  Further, when the microscope part of the surgical microscope is housed, the microscope part is arranged at the lower part of the surgical microscope. For this reason, when the entire apparatus of the surgical microscope is moved, the microscope unit easily collides with, for example, a wall.

  In general, when the microscope section of the surgical microscope is housed, the microscope section is protected by covering the entire surgical microscope apparatus or the microscope section with a dust cover (protective cover). The dust cover can prevent dust and debris from adhering to the microscope, but the shock applied to the microscope when the surgical site is stored from the observable state or vice versa. Is not effective. Furthermore, the work of attaching the dust cover to the microscope unit itself is troublesome and the cover may be lost.

  This invention was made in order to solve such a subject, and the place made into the objective is to provide the surgical microscope which can protect a microscope part reliably when accommodating a microscope part. is there.

In order to solve the above-described problems, a surgical microscope according to the present invention includes a microscope unit capable of observing a surgical part, a three-dimensionally movable microscope part, and a surgical part using the microscope part. The microscope unit can be moved in a range different from the movement range during use when the microscope unit can be moved and the movement range during use when the microscope unit is stored. A microscope unit supporting means having a movable part movable in a continuous storage movement range, and disposed in the microscope unit support means, the microscope unit support means being distal to the movement range during use. A protective cover that protects the microscope unit when disposed at the end position of the moving range during storage , wherein the microscope unit support means detects the position of the movable unit, and the microscope unit moves the moving range during use. And when storing Based on the detection result of the position detection means for detecting at which position of the range, and the detection result of the position detection means, the protective cover is moved forward and backward when the microscope unit is placed in the movement range when stored. A first feature is that the microscope unit includes cover driving means for attaching and detaching the protective cover .

With such a configuration, when the microscope unit is used, the microscope unit is disposed in the moving range during use, and when stored, the microscope unit can be reliably protected by the protective cover while being disposed in the moving range during storage. it can. When the microscope unit is stored, the movement of the microscope unit can be automatically detected to cover the microscope unit.

  In a preferred embodiment, the protective cover is built in the microscope unit support means.

  Since it has such a structure, when an operator uses a microscope part, it is prevented that a protective cover becomes obstructive.

  According to the present invention, it is possible to provide a surgical microscope capable of reliably protecting the microscope portion when the surgical microscope is housed.

  The best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described below with reference to the drawings.

  First, a first embodiment will be described with reference to FIG. Here, the horizontal movement arm 24 (first link arm 35a), which will be described later, of the surgical microscope 10 extends in the vertical direction, and the vertical movement arm 28 (third link arm 35c) extends in the horizontal direction in FIG. The structure of the surgical microscope 10 will be described using the state shown in FIG.

  As shown in FIG. 1A, a surgical microscope 10 according to this embodiment includes a base 12, a microscope unit support mechanism (microscope unit support means) 14, a microscope unit 16, a microscope unit protection unit 18, and the like. It has.

  The base 12 includes a plurality of casters 12a that can be rotated / fixed by a stopper (not shown) with respect to a flat floor, for example, and a base body 12b mounted on the casters 12a. A microscope unit support mechanism 14 that movably supports the microscope unit 16 is disposed in the base body 12b. The support mechanism 14 includes a column 22, a horizontal movement arm 24, a joint 26, a vertical movement arm 28, a tip joint 30, and a microscope unit support arm 32. Among these, the horizontal movement arm 24, the joint 26, the vertical movement arm 28, the tip joint 30, and the microscope unit support arm 32 are movable parts of the support mechanism 14. The horizontal movement arm 24 is provided for moving the microscope unit 16 in a substantially horizontal direction, and the vertical movement arm 28 is provided for moving the microscope unit 16 in a substantially vertical direction.

  Between the base body 12b of the base 12 and the lower end portion of the support column 22, a first rotating shaft O1 extending in the vertical direction is disposed. For this reason, the support | pillar 22 can rotate relatively with respect to the base 12 around the 1st rotating shaft O1. At the upper end of the column 22, second and third rotation axes O2 and O3 which are orthogonal to the first rotation axis O1 and have respective axes in the horizontal direction are parallel to each other in FIG. It is installed. Horizontal movement arms 24 are disposed on the second and third rotation axes O2 and O3. The horizontal movement arm 24 includes first and second link arms 35a and 35b. One end of the first link arm 35a is connected to the second rotation axis O2. One end of the second link arm (vertical link) 35b is connected to the third rotation axis O3.

  At the other end of the first and second link arms 35a and 35b, there are fourth and fifth rotation axes O4 and O5 that are parallel to the second rotation axis O2 and parallel to each other, each having an axis in the horizontal direction. They are arranged side by side on the left and right in FIG. One end portion (the lower end portion in FIG. 1A) of the L-shaped joint 26 is disposed on the fourth and fifth rotating shafts O4 and O5. The second to fifth rotation axes O2, O3, O4, and O5 are arranged at the vertices of the parallelogram. Therefore, the rotary shafts O2, O3, O4, O5, the first and second link arms 35a, 35b, the support column 22 serving as an arm connecting the rotary shafts O2, O3, and the rotary shaft O4, A parallelogram link is formed by the joint 26 having a function as an arm for connecting between O5. Although not shown, the first link arm 35a is balanced by a counterweight (not shown). That is, the moment around the second rotation axis O2 due to the weight of the microscope unit 16 is canceled by the counterweight.

  The other end of the L-shaped joint 26 (the right end in FIG. 1A) is parallel to the second rotation axis O2 and is parallel to the sixth and seventh axes, each having an axis in the horizontal direction. The rotation shafts O6 and O7 are arranged in parallel in the upper and lower directions in FIG. Vertical movement arms 28 are disposed on the sixth and seventh rotation shafts O6 and O7. The vertical movement arm 28 includes third and fourth link arms 35c and 35d. One end of the third link arm 35c is connected to the sixth rotation shaft. One end of the fourth link arm (horizontal link) 35d is connected to the seventh rotation axis O7.

  The other end portions of the third and fourth link arms 35c and 35d are parallel to the second rotation axis O2 and are respectively parallel to the eighth and ninth rotation axes O8 and O9 having axes in the horizontal direction. Are arranged side by side in the vertical direction in FIG. A tip joint 30 is supported on the eighth and ninth rotary shafts O8 and O9. The sixth to ninth rotation axes O6, O7, O8, and O9 are arranged at the apexes of the parallelogram. Therefore, the rotary shafts O6, O7, O8, and O9, the third and fourth link arms 35c and 35d, the joint 26 that functions as an arm that connects the rotary shafts O6 and O7, and the rotary shafts O8, A parallelogram link is constituted by the tip joint 30 having a function as an arm connecting between O9. Although not shown, the third link arm 35c is balanced by a counterweight (not shown). That is, the moment around the sixth rotation axis O6 due to the weight of the microscope unit 16 is canceled by the counterweight.

  The tip joint 30 includes a tenth rotation axis O10 having an axis in the vertical direction. One end portion (upper end portion) of the microscope unit support arm 32 is disposed on the rotation shaft O10 so as to be rotatable around the axis O10. The microscope unit support arm 32 is formed in, for example, a U shape or a U shape. The microscope unit support arm 32 has an eleventh rotation axis O11 extending in the horizontal direction. At the other end (lower end) of the microscope unit support arm 32 having the rotation axis O11, the microscope unit 16 is supported so as to be rotatable around the eleventh rotation axis O11.

  On the outer surface of the column 22, the microscope unit protection unit 18 is disposed. The microscope unit protection unit 18 is fixed to the support column 22, and a first protection cover 38a in which a substantially central portion of the microscope unit support arm 32 can be inserted and removed, and a first protection cover 38a so as to cover the first protection cover 38a. And a second protective cover 38b detachably attached to the protective cover 38a. The first and second protective covers 38a and 38b are made of a transparent material such as a plastic material. A substantially U-shaped notch 39 to which the microscope unit support arm 32 is attached and detached is formed on the upper end surface of the first protective cover 38a.

  In the observation state (initial state) in which the operation part is observed with the microscope unit 16, the observation direction of the microscope unit 16 is the rotation of the support column 22 around the rotation axis O1 and the first link arm around the second rotation axis O2. 35a, rotation of the third link arm 35c around the sixth rotation axis O6, rotation of the microscope unit support arm 32 around the sixth rotation axis O6 and rotation of the microscope unit 16 around the eleventh rotation axis O11. It is three-dimensionally changed by movement.

  Here, the first link arm 35a accommodates an angle (movement range during use) θ1 for moving the microscope unit 16 as necessary and sufficiently in an observation state in which the microscope unit 16 is observed, and a storage for storing the microscope unit 16. There are two rotation ranges of an angle (moving range during storage) θ2 for sometimes moving. At the time of transition from the angle θ1 to the angle θ2, it is appropriately arranged in a desired angle range by inserting and removing a stopper (not shown) having a movable range fixing pin that can be inserted and removed.

  The stopper includes, for example, a fixing pin and a through hole formed in the support column 22 so that the fixing pin is inserted and removed so as to be inserted and removed. The through hole is formed, for example, at the upper end portion of the column 22 so as to define the rotation range of the first link arm 35a at an angle θ1 and an angle θ2. The fixing pin is fixed to the through hole of the support post 22, and the first link arm 35a is brought into contact with the fixing pin. For this reason, the 1st link arm 35a can be set so that rotation between fixed pins is possible.

  In addition, a through hole may be formed in the upper end portion of the support column 22, and a through hole may be formed in a groove shape in the first link arm 35a. When the fixing pin is detachably fixed to the through hole of the support column 22, the fixing pin is predetermined along the groove-shaped through hole as the first link arm 35a rotates around the second rotation axis O2. Move within the range of.

  The third link arm 35c is moved in the observation state in which the microscope unit 16 is observed, an angle (moving range during use) θ3 for moving the microscope unit 16 as necessary and when the microscope unit 16 is stored. For this purpose, a rotation range of an angle (movement range during storage) θ4 is provided. At the time of transition from the angle θ3 to the angle θ4, a stopper (not shown) having a movable range fixing pin that can be inserted / removed is inserted / removed so as to be disposed in a desired angle range.

  The stopper includes, for example, a fixing pin and a through hole formed in the joint 26 so that the fixing pin is inserted and removed so as to be inserted and removed. The through hole is formed, for example, at the right end of the joint 26 so as to define the rotation range of the third link arm 35c at an angle θ3 and an angle θ4. The fixed pin is fixed to the through hole of the joint 26, and the third link arm 35c is brought into contact with the fixed pin. For this reason, the 3rd link arm 35c can be set so that rotation between fixed pins is possible.

  In addition, a through hole may be formed in the right end portion of the joint 26, and a through hole may be formed in a groove shape in the third link arm 35c. When the fixing pin is detachably fixed to the through hole of the joint 26, the fixing pin is predetermined along the groove-shaped through hole as the third link arm 35c rotates around the sixth rotation axis O6. Move within the range of.

  Next, the operation of the surgical microscope 10 according to this embodiment will be described.

  In the observation state (initial state) in which the operation part is observed with the microscope unit 16, the first link arm 35a is movable in the rotation range of the angle θ1, and the third link arm 35c is movable in the rotation range of the angle θ3. A fixing pin is disposed at an appropriate position of the surgical microscope 10.

  On the other hand, when the microscope unit 16 is housed after the surgical microscope 10 is used, the position of the fixing pin is changed so that the first link arm 35a has a rotation range of an angle θ2 and the third link arm 35c has a rotation range of an angle θ4. Set each to be movable. Then, the first and third link arms 35a and 35c are moved to the ends of the angles θ2 and θ4, which are distal to the angles θ1 and θ3, respectively (see FIG. 1B).

  At this time, the microscope unit support arm 32 enters the notch 39 of the first protective cover 38a and is attached thereto, and the microscope unit 16 enters the first protective cover 38a. In this state, the second protective cover 38b is attached to the first protective cover 38a. For this reason, the microscope unit 16 is covered by the first and second protective covers 38a and 38b. That is, the microscope unit 16 is housed inside the transparent hard protective covers 38a and 38b, and is protected from an impact caused by a collision with a wall that occurs when the surgical microscope 10 is moved. Further, dust and dirt are prevented from adhering to the microscope unit 16.

  As described above, according to the surgical microscope 10 according to this embodiment, the following effects can be obtained.

  The microscope unit 16 is brought into a compact storage state (angles θ2, θ4) only by moving the first and third link arms 35a, 35c from the movement range (angles θ1, θ3) in the observation state. be able to. When the microscope unit 16 is protected by the protective covers 38a and 38b, since it is protected by the hard cover supported by the support column 22, it is possible to prevent adhesion of dust and dirt, and for example, an impact caused by a collision with a wall or the like. Therefore, the microscope unit 16 can be protected. Moreover, since a part of 1st protective cover 38a is supported by the support | pillar 22, the 2nd protective cover 38b can be mounted | worn easily. That is, the microscope unit 16 can be reliably protected when the surgical microscope 10 is stored, and the work for that purpose can be easily performed.

  In this embodiment, it has been described that the counterweight is used to cancel the moments about the axes O2 and O6 due to the weight of the microscope unit 16, but an elastic member such as a coil spring is used instead of the counterweight. May be.

  Next, a second embodiment will be described with reference to FIG. This embodiment is a modification of the first embodiment. The same members as those described in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Here, the configuration of the surgical microscope 10 will be described using a state (initial state) shown in FIG. 2A in which a vertical movement arm 28 (described later) of the surgical microscope 10 extends in the horizontal direction.

  As shown in FIG. 2A, a column 52 is supported on the base body 12b of the base 12 so as to be rotatable around the first rotation axis O1. The support column 52 includes a vertical portion 52a extending in the vertical direction from the base body 12b, and an inclined portion 52c extending obliquely upward from the upper end of the vertical portion 52a by a bent portion 52b. That is, the vertical portion 52a is supported by the first rotation axis O1 so as to be rotatable around the first rotation axis O1.

  An axis O14 extending in the vertical direction is disposed at the upper end of the inclined portion 52c. An L-shaped joint 56 is rotatably supported on the shaft O14. As shown in FIG. 2B, the joint 56 is an angle (moving range during use) θ5 for moving the microscope unit 16 in the horizontal direction around the axis O14 in the observation state in which the microscope unit 16 performs observation. And a rotation range of an angle (moving range during storage) θ6 for moving the microscope unit 16 during storage. That is, the joint 56 can be rotated within the range of the angle θ5 when the microscope unit 16 is used, and can be rotated within the range of the angle θ6 when the microscope unit 16 is stored. At the time of transition from the angle θ5 to the angle θ6, a stopper (not shown) such as a movable range fixing pin that can be inserted / removed is inserted / removed so as to be in a desired angle range.

  Similar to the joint 26 described in the first embodiment, the joint 56 is provided with sixth and seventh rotation axes O6 and O7. For this reason, the rotation range angle of the vertical moving arm 28 around the sixth rotation axis O6 is the same as the angles θ3 and θ4 described in the first embodiment.

  An axis O15 extending in the horizontal direction is disposed in the bent portion 52b of the support column 52. A protective cover 60 is disposed on the shaft O15. The protective cover 60 includes first to seventh cover pieces 60a to 60g formed of a transparent and hard plastic material each having an end portion supported by an axis O15. The first cover piece 60a includes a pair of fan-shaped surfaces that are parallel to each other and have the same shape, and a curved surface that connects the fan-shaped arcs to each other. The second to seventh cover pieces 60b-60g are formed similar to the first cover piece 60a, but the second to seventh cover pieces 60b-60g are formed slightly smaller in order. For this reason, the 2nd cover piece 60b is accommodated in the inside of the 1st cover piece 60a. Further, for example, the sixth and seventh cover pieces 60f and 60g are formed with notches (not shown) into which the substantially central portion of the microscope unit support arm 32 is inserted and removed.

  The third cover piece 60c is accommodated in the second cover piece 60b. For this reason, the 3rd cover piece 60c is accommodated also in the inside of the 1st cover piece 60a with the 2nd cover piece 60b. Hereinafter, the fourth to seventh cover pieces 60d-60g are sequentially stored in adjacent cover pieces. That is, the storage space necessary for storing the protective cover 60 is only the space of the first cover piece 60a. The adjacent cover pieces can be rotated around the axis O15 within a range defined with respect to the adjacent cover pieces by, for example, a locking projection.

  Next, the operation of the surgical microscope 10 according to this embodiment will be described.

  In the observation state in which the operation part is observed with the microscope unit 16, the vertical movement arm 28 has a rotation range of an angle θ3 about the axis O6 and a rotation range of an angle θ5 about the axis O14 of the joint 56, respectively. A fixed pin is movably disposed at an appropriate position on the surgical microscope 10.

  On the other hand, when the microscope unit 16 is stored after the surgical microscope 10 is used, first, the position of the fixing pin is changed so that the vertical movement arm 28 can move the rotation range of the angle θ6 around the axis O14. Then, the vertical movement arm 28 is rotated around the axis O14, and the vertical movement arm 28 is moved to the end of the angle θ6, which is distal to the angle θ5.

  Then, the vertical movement arm 28 is movable within the rotation range of the angle θ4 around the sixth rotation axis O6. The vertical movement arm 28 is rotated around the sixth rotation axis O6, and the vertical movement arm 28 is moved to the end of the angle θ4, which is distal to the angle θ3 (see FIG. 2C).

  At this time, the second cover piece 60b is discharged from the first cover piece 60a by the rotation around the axis O15 in a state where the microscope unit 16 is disposed at a position adjacent to the protective cover 60. Thereafter, the cover pieces 60c-60g housed inside are sequentially discharged to cover the microscope unit 16. At this time, the microscope unit support arm 32 is disposed in the cutout portions of the sixth and seventh cover pieces 60f and 60g. In this way, when the microscope unit 16 is stored, the microscope unit 16 is covered and protected by the first to seventh cover pieces 60 a to 60 g of the protective cover 60. That is, the microscope unit 16 is housed inside the transparent protective cover 60.

  As described above, according to the surgical microscope 10 according to this embodiment, the following effects can be obtained.

  The microscope unit 16 can be brought into a compact storage state only by moving the vertical moving arm 28 to a range of angles θ4 and θ6 from the moving range (angles θ3 and θ5) in the observation state. When the microscope unit 16 is protected by the protective cover 60, the microscope unit 16 can be covered by sequentially discharging the first to seventh cover pieces 60a-60g built in the support column 52 from the adjacent cover pieces. It can be easily covered. Moreover, since the protective cover 60 is built in the support column 52, the possibility of losing the cover 60 can be prevented. Further, when the microscope unit 16 is used for observation, since the protective cover 60 is built in the support column 52, it is prevented that the operation of the operator is obstructed. Further, since the protective cover 60 is made of a hard material, it can prevent dust and dirt from adhering to it, and can also protect the microscope unit 16 from an impact caused by a collision with a wall, for example. .

  In this embodiment, the movable range of the angle θ6 is set only on the upper side with respect to the center line I in FIG. 2B. However, the movable range may also be rotatable on the lower side. This eliminates the need to define the direction in which the vertical movement arm 28 is rotated with respect to the axis O15 of the joint 56 when the microscope unit 16 is housed.

  Next, a third embodiment will be described with reference to FIG. This embodiment is a modification of the first embodiment. The same members as those described in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Here, surgery is performed using the state (initial state) shown in FIG. 3A in which a later-described first link arm 35a of the surgical microscope 10 extends in the vertical direction and the third link arm 35c extends in the horizontal direction. The configuration of the microscope 10 will be described.

  A shaft O16 extending in the horizontal direction is disposed on the support column 22. A protective cover 70 is disposed on the shaft O16. The protective cover 70 includes transparent hard first to fifth cover pieces 70a to 70e each having an end portion supported by an axis O16. The first cover piece 70a includes fan-shaped fan surfaces that are parallel to each other and have the same shape, and a curved surface that connects the fan-shaped arcs to each other. The second to fifth cover pieces 70b to 70e are formed similar to the first cover piece 70a, but the second to fifth cover pieces 70b to 70e are formed to be slightly smaller in order. For this reason, the 2nd cover piece 70b is accommodated in the inside of the 1st cover piece 70a. Further, for example, a cutout portion (not shown) in which the microscope unit support arm 32 is disposed is formed in the fifth cover piece 70e. The third cover piece 70c is accommodated in the second cover piece 70b. For this reason, the 3rd cover piece 70c is accommodated also in the inside of the 1st cover piece 70a with the 2nd cover piece 70b. Hereinafter, the fourth and fifth cover pieces 70d and 70e are sequentially accommodated in the previous cover piece. That is, the storage space necessary for storing the protective cover 70 is only the space of the first cover piece 70a. The adjacent cover pieces can be rotated around the axis O16 within a range defined with respect to the adjacent cover pieces by, for example, a locking projection.

  A first encoder 75a for detecting the rotation position of the first link arm 35a (horizontal movement arm 24) is disposed on the rotation axis O2. The first encoder 75 a is connected to the control unit 77. For this reason, the signal detected by the first encoder 75 a is input to the control unit 77. In addition, it is preferable that the control part 77 is incorporated in the support | pillar 22, for example.

  A second encoder 75b for detecting the rotational position of the third link arm 35c (vertical moving arm 28) is disposed on the rotation axis O6 disposed in the joint 26. The second encoder 75b is connected to the control unit 77 described above. For this reason, the signal detected by the second encoder 75 b is input to the control unit 77.

  A motor 79 that is controlled and driven by outputting a signal from the controller 77 is connected to the controller 77. When the motor 79 is driven, the axis O16 that rotates the protective cover 70 is rotated. For this reason, the motor 79 is controlled and driven only when the first and third link arms 35a and 35c are positioned at the end of the movement ranges (angles) θ2 and θ4 during storage, respectively. Then, the control unit 77 outputs a signal.

  Next, the operation of the surgical microscope 10 according to this embodiment will be described. The description of the same operation as that described in the first embodiment is omitted.

  When the microscope unit 16 is housed after observing the surgical site using the surgical microscope 10, the position of the fixing pin is changed so that the first link arm 35a rotates at an angle θ2 and the third link arm 35c rotates at an angle θ4. Set each moving range to be movable. Then, the first and third link arms 35a and 35c are moved to the ends of the angles θ2 and θ4, which are distal to the angles θ1 and θ3, respectively (see FIG. 1B).

  At this time, the control unit 77 receives signals from the first and second encoders 75 a and 75 b and outputs a drive signal from the control unit 77 to the motor 79. When the motor 79 is driven, the first to fifth cover pieces 70a to 70e are sequentially discharged around the axis O16, and the microscope unit 16 is covered with the protective cover 70.

  As described above, according to the surgical microscope 10 according to this embodiment, the following effects can be obtained. The description of the same effect as that described in the first embodiment is omitted.

  The workability for covering the microscope unit 16 with the protective cover 70 can be remarkably improved by only moving the arms 24 and 28 to the storage position of the microscope unit 16.

  The fixing pin described above is not always necessary, and the microscope unit 16 is moved to a desired position by moving the horizontal moving arm 24 and the vertical moving arm 28 by appropriately rotating them around the axes O2 and O6, respectively. It is possible to move.

  Although several embodiments have been specifically described so far with reference to the drawings, the present invention is not limited to the above-described embodiments, and all the embodiments performed without departing from the scope of the invention are described. Including implementation.

  According to the above description, the following matters can be obtained. Combinations of the terms are also possible.

[Appendix]
(Additional Item 1) A microscope unit capable of observing the surgical unit, a microscope unit support means for supporting the microscope unit movably in three dimensions, and a protective cover for protecting the microscope unit during storage. In a surgical microscope,
At least one of the movable parts of the microscope unit support means has a movement range during use for moving the microscope unit during observation of the surgical part, and a movement range during storage that moves during storage in a range different from the movement range during use. And a microscope for surgery, wherein the protective cover connected to the microscope unit support means is attached to the microscope unit at a terminal position of the moving range during storage.

    (Additional Item 2) The surgical microscope characterized in that the protective cover can be built in the microscope unit support means.

    (Additional Item 3) A position detection means for detecting the movable position of the movable part of the microscope part support means, and a drive means for moving the protective cover built in the microscope part support means so as to freely move forward and backward, A surgical microscope according to claim 1, wherein the protective cover is attached to the microscope unit by the driving means according to a detection result of the position detecting means.

    (Additional Item 4) A surgical microscope in which the protective cover is configured as a hard case.

    (Additional Item 5) A surgical microscope, wherein the protective cover is transparent.

    (Additional Item 6) The microscope unit support means is rotatable about the first horizontal rotation axis with respect to the base unit and the column unit that is rotatably supported around the vertical rotation axis with respect to the base unit. A horizontal moving arm for moving the held mirror body in the horizontal direction and a vertical moving arm for moving the held mirror body around the second horizontal rotation axis with respect to the horizontal movement arm in the vertical direction; A surgical microscope characterized by comprising.

    (Additional Item 7) The surgical microscope, wherein the protective cover is composed of at least two members.

    (Additional Item 8) The surgical microscope, wherein the protective cover is connected to a support column of the microscope unit support means.

(A) is a schematic front view which shows the state which observes an operation part with the surgical microscope concerning the 1st Embodiment of this invention, (B) is related with the 1st Embodiment of this invention. The schematic front view which shows the state which accommodated the microscope part of the surgical microscope, (C) is a schematic perspective view which shows the 1st and 2nd protective cover used when accommodating a microscope part. (A) is a schematic front view which shows the state which observes a surgical part with the surgical microscope concerning the 2nd Embodiment of this invention, (B) is the state shown to (A) in (A) FIG. 6C is a schematic top view showing a state viewed from the direction of the arrow 2B, and FIG. 6C is a schematic front view showing a surgical microscope according to the second embodiment of the present invention and showing a state in which the microscope unit is housed. FIG. 4D is a schematic perspective view showing a protective cover used when housing the microscope unit. The surgical microscope concerning the 3rd Embodiment of this invention is shown, (A) is a schematic front view which shows the state which observes an operation part, (B) is the outline which shows the state which accommodated the microscope part. Front view.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Operation microscope, 12 ... Base, 14 ... Microscope part support mechanism, 16 ... Microscope part, 18 ... Microscope part protection part, 22 ... Support | pillar, 24 ... Horizontal movement arm, 26 ... Joint, 28 ... Vertical movement arm, 30 ... tip joint, 32 ... microscope support arm, 35a ... first link arm, 35c ... third link arm, 38a ... first protective cover, 38b ... second protective cover, 39 ... notch

Claims (2)

A microscope that can observe the surgical site;
When supporting the microscope unit movably in three dimensions, and when moving the microscope unit when observing a surgical site using the microscope unit, and when storing the microscope unit The microscope unit support means including a movable unit that can move the microscope unit in a range different from the moving range during use, and a movable range during storage that is continuous with the moving range during use.
A protective cover that is disposed on the microscope unit support means and protects the microscope unit when the microscope unit support unit is disposed at the end position of the storage movement range distal to the movement range during use. provided with a door,
The microscope support means detects the position of the movable part, and detects the position of the microscope part located in the use movement range or the storage movement range, and the position Cover driving means for moving the protective cover forward and backward to attach / detach the protective cover to / from the microscope section when the microscope section is arranged in the movement range when stored based on the detection result of the detecting means. Features a surgical microscope.   The surgical microscope according to claim 1, wherein the protective cover is built in the microscope unit support means.

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