JP2008237515A - Surgical microscope - Google Patents

Surgical microscope Download PDF

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JP2008237515A
JP2008237515A JP2007081757A JP2007081757A JP2008237515A JP 2008237515 A JP2008237515 A JP 2008237515A JP 2007081757 A JP2007081757 A JP 2007081757A JP 2007081757 A JP2007081757 A JP 2007081757A JP 2008237515 A JP2008237515 A JP 2008237515A
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arm
mirror body
mirror
surgical microscope
attached
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JP4896787B2 (en
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Kazutoshi Machida
和敏 町田
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Topcon Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a surgical microscope having a small and simple structure which eliminates the need to support a mirror member with the hand when releasing the fixture of the mirror member. <P>SOLUTION: The surgical microscope comprises an arm 11 attached to a distal part of a support arm rotatable in the vertical and right and left directions, the mirror body 12 attached to the arm 11 via a tilting mechanism 20, and a microscopic optical system mounted on the mirror body 12. The tilting mechanism 20 fixes the mirror body 12 at an arbitrary tilting angle on the arm 11 by fastening a nut member 22. When fixture by the nut member 22 is released, the mirror body 12 is set free around a rotational axis 21. The microscope has an oil damper 30 that uses viscosity of liquid for damping the rotational movement of the mirror body 12 around the rotational axis 21 when the mirror body 12 is set free around the rotational axis 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、支持アームの先端部に取り付けられるアームに腑仰機構を介して鏡体を取り付ける手術用顕微鏡に関する。   The present invention relates to a surgical microscope in which a mirror body is attached to an arm attached to a distal end portion of a support arm via an elevating mechanism.

従来から、支持アームの先端部に鏡体を取り付けた手術用顕微鏡が知られている（特許文献１参照）。   2. Description of the Related Art Conventionally, a surgical microscope in which a mirror body is attached to the tip of a support arm is known (see Patent Document 1).

かかる手術用顕微鏡は、支持アームの先端部に取り付けられるアームと、このアームに腑仰機構を介して取り付けられた鏡体とを有し、この鏡体内には対物レンズと変倍光学系と接眼レンズとが設けられている。   Such a surgical microscope has an arm attached to the distal end portion of a support arm and a mirror body attached to the arm via an elevation mechanism, and an objective lens, a variable power optical system, and an eyepiece are provided in the body body. And a lens.

鏡体は、腑仰機構により任意の腑仰角度でアームに固定されるようになっている。   The mirror body is fixed to the arm at an arbitrary elevation angle by the elevation mechanism.

しかしながら、このような手術用顕微鏡にあっては、鏡体は腑仰機構により任意の腑仰角度でアームに固定されるが、その固定を解除すると鏡体が自重により腑仰軸回りに回動する。鏡体は光学系等が設けられていることにより重く、このため、その固定が解除されると鏡体は勢いよく回動してしまうという問題があった。この問題を回避するため、操作者は鏡体を手で支えながらその鏡体の固定の解除を行わなければならなかった。   However, in such a surgical microscope, the mirror body is fixed to the arm at an arbitrary elevation angle by the elevation mechanism, but when the fixation is released, the mirror body rotates about the elevation axis by its own weight. To do. The mirror body is heavy due to the provision of an optical system and the like. For this reason, there is a problem that the mirror body vigorously rotates when the fixation is released. In order to avoid this problem, the operator has to release the fixing of the mirror while supporting the mirror with the hand.

また、大型の実体顕微鏡では、弾性部材の反力を利用して鏡体に作用する重力モーメントを相殺するものがあるが（特許文献２参照）、機構が複雑で大型化してしまう問題がある。   Some large stereo microscopes cancel the gravitational moment acting on the mirror body using the reaction force of the elastic member (see Patent Document 2), but there is a problem that the mechanism is complicated and large.

この発明の目的は、鏡体の固定の解除の際にその鏡体を手で支える必要がなく、しかも簡単な構成で且つ小型化を図ることのできる手術用顕微鏡を提供することにある。   An object of the present invention is to provide a surgical microscope that does not need to be supported by hand when releasing the fixation of the mirror, and that can be reduced in size with a simple configuration.

請求項１の発明は、上下左右方向に回動可能な支持アームの先端部に取り付けられるアームと、このアームに腑仰機構を介して取り付けられた鏡体と、この鏡体に設けられた顕微鏡光学系とを備え、前記腑仰機構は、ロック手段により前記鏡体を任意の腑仰角度でアームに固定し、そのロック手段のロックが解除された際、前記鏡体を腑仰軸回りにフリーにする手術用顕微鏡であって、
前記鏡体が腑仰軸回りにフリーにされた際、この鏡体の腑仰軸回りの回動に流体の粘性によって減衰を与える減衰手段を設けたことを特徴とする。 According to the first aspect of the present invention, there is provided an arm attached to a distal end portion of a support arm that can be turned in the vertical and horizontal directions, a mirror attached to the arm via an elevation mechanism, and a microscope provided in the mirror An optical system, and the elevation mechanism fixes the mirror body to an arm at an arbitrary elevation angle by a lock means, and when the lock means is unlocked, the mirror body is rotated about the elevation axis. A surgical microscope to be free
A damping means is provided for attenuating the rotation of the mirror body around the elevation axis by the viscosity of the fluid when the mirror body is freed about the elevation axis.

この発明によれば、鏡体の固定の解除の際にその鏡体を手で支える必要がなく、しかも簡単な構成で且つ小型化を図ることができる。   According to the present invention, it is not necessary to support the mirror body by hand when releasing the fixation of the mirror body, and the size can be reduced with a simple configuration.

以下、この発明に係わる手術用顕微鏡の実施の形態である一実施例を図面に基づいて説明する。   Hereinafter, an embodiment as an embodiment of a surgical microscope according to the present invention will be described with reference to the drawings.

図１において、１は支持ポストであり、この支持ポスト１の上部に水平回動可能なＬ字アーム２が装着され、このＬ字アーム２の先端部に上下方向に揺動可能な支持アーム３が装着されている。支持アーム３の先端部には上下方向に延びた取付軸４が装着されている。そして、取付軸４には実体顕微鏡である手術用顕微鏡１０が着脱可能に取り付けられている。   In FIG. 1, reference numeral 1 denotes a support post. An L-shaped arm 2 that can be horizontally rotated is mounted on an upper portion of the support post 1, and a support arm 3 that can swing in the vertical direction at the tip of the L-shaped arm 2. Is installed. A mounting shaft 4 extending in the vertical direction is attached to the tip of the support arm 3. A surgical microscope 10 that is a stereomicroscope is detachably attached to the attachment shaft 4.

手術用顕微鏡１０は、図２および図３に示すように、上下方向に延びたアーム１１と、このアーム１１に腑仰機構２０を介して装着された鏡体１２とを備えている。   As shown in FIGS. 2 and 3, the surgical microscope 10 includes an arm 11 extending in the vertical direction, and a mirror body 12 attached to the arm 11 via an elevating mechanism 20.

アーム１１は下部に形成されたダンパー室２６を有しており、このダンパー室２６にオイルダンパー（減衰手段）３０が装着されている。また、アーム１１の右側面１１Ａ（図３において）が平面状に形成されている。   The arm 11 has a damper chamber 26 formed in the lower portion, and an oil damper (attenuating means) 30 is attached to the damper chamber 26. Further, the right side surface 11A (in FIG. 3) of the arm 11 is formed in a planar shape.

鏡体１２は、鏡筒１２Ａと、この鏡筒１２Ａを支持するとともにアーム１１の右側面１１Ａに取り付けられた支持筐体１２Ｂとを有している。   The lens body 12 includes a lens barrel 12A and a support housing 12B that supports the lens barrel 12A and is attached to the right side surface 11A of the arm 11.

鏡筒１２Ａには、顕微鏡光学系（図示せず）等が設けられており、顕微鏡光学系は、図示しない対物レンズと、変倍光学系（図示せず）と、一対の接眼レンズ１３等とを有している。この鏡筒１２Ａは、各光学系が設けられていることにより重くなっており、自重により後述する回動軸２１を中心にして矢印Ｐ方向の重力モーメントが常に働いている。   The lens barrel 12A is provided with a microscope optical system (not shown) and the like, and the microscope optical system includes an objective lens (not shown), a variable magnification optical system (not shown), a pair of eyepieces 13 and the like. have. The lens barrel 12A is heavier due to the provision of each optical system, and a gravity moment in the direction of arrow P is always acting around a rotation shaft 21 described later by its own weight.

腑仰機構２０は、支持筐体１２Ｂの側面１２Ｂａに取り付けられた回動軸（腑仰軸）２１と、この回動軸２１の先端部２１Ａに取り付けられたナット部材２２と、このナット部材２２に取り付けられた緊定ハンドル２４等とを有している。   The raising / lowering mechanism 20 includes a rotation shaft (elevation shaft) 21 attached to the side surface 12Ba of the support housing 12B, a nut member 22 attached to the distal end portion 21A of the rotation shaft 21, and the nut member 22. And a tightening handle 24 attached to the head.

回動軸２１は、アーム１１の側面１１Ａから他方の側面１１Ｂを回動自在に貫通しており、その先端部２１Ａが側面１１Ｂから突出している。先端部２１Ａにはネジ部２１Ｎが形成され、このネジ部２１Ｎにナット部材（ロック手段）２２が螺合している。   The rotation shaft 21 passes through the other side surface 11B from the side surface 11A of the arm 11 so as to freely rotate, and a tip end portion 21A projects from the side surface 11B. A screw portion 21N is formed at the distal end portion 21A, and a nut member (locking means) 22 is screwed into the screw portion 21N.

そして、緊定ハンドル２４を操作してナット部材２２を締め付けると、支持筐体１２Ｂの側面１２Ｂａがアーム１１の側面１１Ａに圧接され、この圧接による摩擦力により支持筐体１２Ｂがアーム１１に固定される。すなわち、アーム１１に鏡体１２が固定されることになる。   When the tightening handle 24 is operated and the nut member 22 is tightened, the side surface 12Ba of the support housing 12B is brought into pressure contact with the side surface 11A of the arm 11, and the support housing 12B is fixed to the arm 11 by the frictional force caused by the pressure contact. The That is, the mirror body 12 is fixed to the arm 11.

逆に、緊定ハンドル２４を操作してナット部材２２を緩めると、支持筐体１２Ｂすなわち鏡体１２が回動軸２１とともに回動軸２１回りに回動自在となり、手術用顕微鏡１０の腑仰角を任意に調整することができるようになる。   On the other hand, when the nut member 22 is loosened by operating the tightening handle 24, the support housing 12 </ b> B, that is, the mirror body 12 becomes rotatable about the rotation shaft 21 together with the rotation shaft 21, and the elevation angle of the surgical microscope 10 is increased. Can be adjusted arbitrarily.

オイルダンパー３０は、図４および図５に示すように、アーム１１のダンパー室２６に固定されるベース３１と、このベース３１に対して回動自在に取り付けられた回動ディスク３２と、この回動ディスク３２を覆ったカバーケース３３等とを有している。回動ディスク３２の中央部の軸受部３２Ａには四角形の軸穴３２ｂが形成され、この軸穴３２ｂに回動軸２１が装着されており、回動軸２１と回動ディスク３２とが一体となって回動していくようになっている。   As shown in FIGS. 4 and 5, the oil damper 30 includes a base 31 fixed to the damper chamber 26 of the arm 11, a rotating disk 32 that is rotatably attached to the base 31, and a rotating disk 32. And a cover case 33 covering the moving disk 32. A rectangular shaft hole 32b is formed in the bearing portion 32A at the center of the rotating disk 32, and the rotating shaft 21 is mounted in the shaft hole 32b. The rotating shaft 21 and the rotating disk 32 are integrated. It will come to rotate.

また、回動ディスク３２の一側面の軸受部３２Ａの周囲に複数の凹凸３４が形成されている。そして、回転ディスク３２とカバーケース３３との間には所定の空間が形成され、この空間にオイル（図示せず）が密封されている。このオイルの粘性により回動ディスク３２の回動に減衰を与えるようになっている。
［作 用］
次に、上記のように構成される手術用顕微鏡１０の作用について説明する。 A plurality of irregularities 34 are formed around the bearing portion 32 </ b> A on one side surface of the rotating disk 32. A predetermined space is formed between the rotary disk 32 and the cover case 33, and oil (not shown) is sealed in this space. The viscosity of the oil attenuates the rotation of the rotating disk 32.
[Operation]
Next, the operation of the surgical microscope 10 configured as described above will be described.

いま、例えば図２に示すようにアーム１１に鏡体１２が固定され、所定の腑仰角で被観察面を観察しているとき、その腑仰角を変える場合、緊定ハンドル２４を操作してナット部材２２を緩める。   Now, for example, as shown in FIG. 2, when the mirror 12 is fixed to the arm 11 and the surface to be observed is observed at a predetermined elevation angle, when the elevation angle is changed, the tightening handle 24 is operated to turn the nut The member 22 is loosened.

このナット部材２２の緩めによって、鏡体１２の支持筐体１２Ｂが回動軸２１とともに回動軸２１回りに回動自在となる。これにより、鏡体１２は自重により回動軸２１を中心にして矢印Ｐ方向に回動していく。   By loosening the nut member 22, the support housing 12 </ b> B of the mirror body 12 can rotate about the rotation shaft 21 together with the rotation shaft 21. Thereby, the mirror body 12 rotates in the direction of arrow P around the rotation shaft 21 by its own weight.

回動軸２１には、オイルダンパー３０の回動ディスク３２が装着されていることにより、鏡体１２の回動とともに回動ディスク３２が回動していくが、オイルダンパー３０のオイルの粘性により回動ディスク３２の回動に減衰が加えられ、この結果、鏡体１２は自重によりゆっくりと回動していく。   Since the rotating disk 32 of the oil damper 30 is mounted on the rotating shaft 21, the rotating disk 32 rotates with the rotation of the mirror body 12. However, due to the viscosity of the oil of the oil damper 30. Attenuation is applied to the rotation of the rotating disk 32. As a result, the mirror body 12 is slowly rotated by its own weight.

このため、緊定ハンドル２４を操作してナット部材２２を緩める際に、従来のように鏡体１２を手で支える必要がない。   For this reason, when operating the tightening handle 24 to loosen the nut member 22, there is no need to manually support the mirror body 12 as in the prior art.

そして、ナット部材２２を緩めた後、鏡体１２を回動軸２１回りに回動させて所望の腑仰角にする。この後、緊定ハンドル２４を操作してナット部材２２を締めて鏡体１２をアーム１１に固定する。   Then, after loosening the nut member 22, the mirror body 12 is rotated around the rotation shaft 21 to obtain a desired elevation angle. Thereafter, the tension handle 24 is operated to tighten the nut member 22 to fix the mirror body 12 to the arm 11.

この固定の際も、オイルダンパー３０の回動ディスク３２の回動に減衰が加えられることにより、鏡体１２を支える力は小さな力で済み、このためその締め付け操作も簡単に行うことができる。   Even during the fixing, the rotation of the rotating disk 32 of the oil damper 30 is attenuated, so that the force for supporting the mirror body 12 is small, and the tightening operation can be easily performed.

このように、ナット部材２２を緩める際に鏡体１２を支える必要がなく、しかもナット部材２２の締め付けの際も、鏡体１２を支える力は小さくて済むので手術用顕微鏡１０の腑仰角の変更操作は容易なものとなる。   As described above, when the nut member 22 is loosened, it is not necessary to support the mirror body 12, and even when the nut member 22 is tightened, the force to support the mirror body 12 is small, so that the elevation angle of the surgical microscope 10 can be changed. The operation is easy.

また、アーム１１にオイルダンパー３０を設けただけなので、その構成は簡単であり小型化を図ることができ、安価な手術用顕微鏡を提供することができる。   Further, since the arm 11 is simply provided with the oil damper 30, the configuration is simple, the size can be reduced, and an inexpensive surgical microscope can be provided.

この発明に係る手術用顕微鏡とその支持構造を示した説明図である。It is explanatory drawing which showed the surgical microscope which concerns on this invention, and its support structure. 図１の手術用顕微鏡の外観を示した斜視図である。It is the perspective view which showed the external appearance of the surgical microscope of FIG. アームに装着された鏡体を示した説明図である。It is explanatory drawing which showed the mirror with which the arm was mounted | worn. オイルダンパーを示した平面図である。It is the top view which showed the oil damper. オイルダンパーの構成を示した断面図である。It is sectional drawing which showed the structure of the oil damper.

符号の説明Explanation of symbols

１０ 手術用顕微鏡
１１ アーム
１２ 鏡体
２０ 腑仰機構
２１ 回動軸（俯仰軸）
３０ オイルダンパー（減衰手段） DESCRIPTION OF SYMBOLS 10 Surgical microscope 11 Arm 12 Mirror body 20 Elevation mechanism 21 Rotation axis (elevation axis)
30 Oil damper (damping means)

Claims (2)

上下左右方向に回動可能な支持アームの先端部に取り付けられるアームと、このアームに腑仰機構を介して取り付けられた鏡体と、この鏡体に設けられた顕微鏡光学系とを備え、前記腑仰機構は、ロック手段により前記鏡体を任意の腑仰角度でアームに固定し、そのロック手段のロックが解除された際、前記鏡体を腑仰軸回りにフリーにする手術用顕微鏡であって、
前記鏡体が腑仰軸回りにフリーにされた際、この鏡体の腑仰軸回りの回動に流体の粘性によって減衰を与える減衰手段を設けたことを特徴とする手術用顕微鏡。 An arm attached to the tip of a support arm that can be rotated in the vertical and horizontal directions; a mirror attached to the arm via a lifting mechanism; and a microscope optical system provided in the mirror, The raising / lowering mechanism is a surgical microscope that fixes the mirror body to an arm at an arbitrary elevation angle by a locking means, and when the locking means is unlocked, the mirror body is free around the elevation axis. There,
An operating microscope, comprising: attenuating means for attenuating the rotation of the mirror around the elevation axis by the viscosity of the fluid when the mirror is freed around the elevation axis. 前記減衰手段は、オイルダンパーであることを特徴とする請求項１に記載の手術用顕微鏡。   The surgical microscope according to claim 1, wherein the attenuation means is an oil damper.
JP2007081757A 2007-03-27 2007-03-27 Surgical microscope Active JP4896787B2 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001025472A (en) * 1999-05-12 2001-01-30 Olympus Optical Co Ltd Supporting device for medical optical instrument
JP2003175056A (en) * 2001-12-11 2003-06-24 Konan Medical Inc Medical microscope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001025472A (en) * 1999-05-12 2001-01-30 Olympus Optical Co Ltd Supporting device for medical optical instrument
JP2003175056A (en) * 2001-12-11 2003-06-24 Konan Medical Inc Medical microscope

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