JP2551055Y2 - Assistant microscope - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to a stereoscopic microscope, for example, an operation microscope, which is integrally supported by a microscope for an operator who is a main observer, and has the same observation target. The present invention relates to a microscope for an assistant who can observe an object simultaneously with a main observer.

[Conventional technology]

2. Description of the Related Art In recent years, microsurgery using a surgical microscope has been actively performed. In general, a surgical microscope is composed of a leg, a column fixed to the leg, a free arm supported up and down by the column, and a stereo microscope attached to the tip of the free arm. I have. Then, the operator moves the microscope to the operation part of the patient by the free arm part, and performs an operation while observing the operation part. In this case, an assistant's microscope (hereinafter referred to as an assistant's microscope) is attached to a microscope for the main observer, ie, an operator's microscope (hereinafter referred to as an operator's microscope). It is not uncommon for surgeons and assistants to perform surgery.

An example of the above-mentioned surgical microscope will be described with reference to FIG. 5. Reference numeral 1 denotes a surgical affected part, 2 denotes an operator's microscope that allows the operator to observe the surgical affected part 1, and 3 denotes a surgical microscope 2. The optical axis. Reference numeral 4 denotes an assistant's microscope for the assistant to observe the affected part 1 of the operation, and reference numeral 5 denotes an adapter for rotatably supporting the assistant's microscope 4 on the lower part of the outer periphery of the operator's microscope 2. In the assistant's microscope 4, reference numerals 6 and 7 denote fixed reflecting members that reflect a light beam incident from the affected part 1, 8 denotes an objective lens disposed thereon, 9 denotes an imaging lens, 10 denotes a prism, and 11 denotes an eyepiece. Reference numeral 12 denotes an optical axis of the assistant microscope 4.

With the above configuration, the surgeon can observe the affected area 1 via an optical system (not shown) in the microscope 2 for the surgeon. In addition, the assistant changes the optical path of the light beam incident on the assistant's microscope 4 from the affected part 1 of the surgery by the reflecting members 6 and 7, passes through the objective lens 8 and the imaging lens 9, and changes the optical path by the prism 10. By passing through the eyepiece 11, the affected area 1 can be observed.

[Problems to be solved by the invention]

However, in the surgical microscope as described above, the optical axis 12 of the assistant's microscope 4 is shifted from the optical axis 3 of the operator's microscope 2 by an angle θ, so that the image of the surgically affected part 1 that the assistant can observe is obtained. Is not exactly the same as the image that the surgeon can observe. Therefore, there are portions that can be observed by the operator but cannot be observed by the assistant, and conversely, portions that can be observed by the assistant but cannot be observed by the operator. The latter is an advantage for the assistant to support the operation, but the former is a serious disadvantage, and the assistant may not be able to sufficiently support the operator.

Therefore, in order to improve this drawback, it is conceivable to change the observation angle of the surgically affected part 1 by rotating the entire assistant microscope 4 by, for example, 180 ° around the operator's microscope using the adapter 5 described above. Then, there is a disadvantage that the workability is extremely deteriorated. This is because the assistant moves in front of the operator during the operation, or the assistant's microscope 4 passes in front of the operator's eyes. This is because the operation efficiency is reduced and the operation time is prolonged.

In view of the above problems, the present invention can change the observation direction and the observation region of the object to be observed without rotating the assistant's microscope itself, so that the assistant does not disturb the main observer. An object of the present invention is to provide a microscope.

[Means and actions for solving the problem]

The assistant's microscope according to the present invention is attached to the microscope for the main observer, and is a reflection optical system for guiding the light beam from the object to be observed and an observation optical system for observing the light beam guided to the reflection optical system as an image. In the assistant's microscope, the reflecting optical system includes two or three reflecting at least a part of the light beam.
And at least two of the reflecting members are disposed on both sides with respect to the observation optical axis of the microscope for the main observer, and at least one of the reflecting members is movable on the optical path and has an optical path. , So that the observation region or the observation direction of the object to be observed can be changed by moving or moving the reflection member.

Therefore, by moving or moving the reflecting member without moving the assistant's microscope itself, it is possible to observe the surgically affected part from a plurality of different directions or a plurality of parts.

〔Example〕

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

FIG. 1 is a schematic view showing a first embodiment of the present invention. In the figure, reference numeral 14 denotes an operator's microscope similar to a conventional one incorporating a pair of other optical systems (not shown) such as an objective lens 15 and an eyepiece, and 17 is fixedly disposed at the tip of the operator's microscope 14 It is a microscope for assistants. In the assistant microscope 17, 18 and
Reference numeral 19 denotes a reflecting member fixed and arranged outside the optical path of the microscope 14 for the operator, 20 denotes an objective lens, 21 denotes a variable power lens, 22 denotes an imaging lens, 23 denotes a prism, and 24 denotes an eyepiece. The light beam incident from 1 is reflected by the reflection members 18 and 19, passes through an observation optical system including the objective lens 20 to the eyepiece lens 24, and the assistant can observe the image with the eyepiece lens 24. Is the optical axis, and 26 is a microscope for assistants whose optical axis 25 is reflected by the reflecting member 18 and reaches the eyepiece 24.
The optical axis of the optical system in 17 is shown. An optical axis 26 is provided between the two reflecting members 18 and 19 so as to be rotatable around a support shaft 28 and can be held at an arbitrary rotating position.
Is a first movable reflecting member capable of moving forward and backward with respect to a light beam including
Is reflected so as to coincide with the optical axis 26, and the assistant can observe the image through the eyepiece lens 24. Reference numeral 30 denotes a lens which is disposed on the optical axis 25 incident on the reflecting member 18 and matches the focus position of the light flux including the optical axis 25 with the focus position of the light flux of the other optical axis 29.

Since the present embodiment is configured as described above, the operator can stereoscopically view the affected part of the operation 1 with the eyepiece through the objective lens 15 built into the microscope 14 for the operator and another optical system (not shown). It has become.

In the assistant's microscope 17, when the first movable reflecting member 27 is held on the optical axis 26 as shown in the figure, the image of the surgically affected part 1 that can be observed by the assistant is such that the optical axis 29 is the first movable reflecting member. 27
Reflected by the optical axis 26, coincides with the optical axis 26, and passes through the observation optical system. In this case, the light flux of the image of the operation affected part 1 with respect to the optical axis 25 is blocked by the first movable reflection member 27.

When the first movable reflection member 27 is held at a position rotated by an appropriate angle on the optical axis 26, for example, as shown in FIG. When rotated to the position indicated by the dashed line, the image of the surgically affected area 1 that can be observed by the assistant has a direction in which the optical axis has moved from the position 29 to the position 29 'by the angle α, and the surgically affected area 1 having a different angle is obtained. Can be observed.

Next, when the first movable reflecting member 27 is rotated until it retracts from the optical path of the optical axis 26 and is held at that position, the light beam including the optical axis 25 is reflected by the reflecting members 18 and 19, and the objective lens 20, After passing through an observation optical system consisting of a magnification lens 21, an imaging lens 22, a prism 23 and an eyepiece 24, the surgical affected area 1 is angled at an optical axis 25.
The assistant can observe the image of.

As described above, according to the present embodiment, the observation site or observation direction of the surgically affected part 1 can be appropriately changed by adding only a few members to the conventional assistant microscope.
The surgically affected area 1 can be observed from a plurality of different directions or at different sites without rotating the 17. for that reason,
The assistant can better support the surgeon, and the surgeon can perform the operation without worrying about the assistant's movement and the like, and the operating ability can be improved.

In addition, if the variable power lens 21 is configured to be switched in conjunction with the rotation of the first movable reflection member 27, even if the observation direction of the surgically affected part 1 changes, it is possible to observe the same magnification.

1 and 2, only one reflection optical system and one observation optical system of the assistant's microscope 17 are shown, but in the case of a surgical microscope, it is assumed that a pair is provided.

Next, a second embodiment of the present invention will be described with reference to FIG. 3, but the same parts as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

In the figure, in the assistant's microscope 17, a half 32 is rotatably disposed about the support shaft 33 between the reflecting member 18 and the first movable reflecting member 27, and is capable of moving back and forth with respect to the optical axis 26. A transflective member which is located at the intersection of the optical axis 34 of the objective lens 15 of the microscope 14 for the operator and the optical axis 26 in the assistant microscope 17 (see FIG. 3), and outside the optical path of the optical axis 26 Can be selected selectively. Further, the lens 30 'can adjust the focus position of the light beam on the optical axis 25 to the focus position of the light beam on the optical axis 34. 35 is the optical axis of the focus position of the light beam of the optical axis 29
It is a lens for matching the focus position of the light beam of 34, and may be configured to move in conjunction with the rotation of the first movable reflection member 27. 36 is a reflection member 18 and a transflective member
The shutter is disposed between the optical axis 26 and the optical axis 26 in accordance with the advance and retreat of the transflective member 32.

Under the above-described configuration, when each member is at the position shown in FIG. 3, the images of the surgically affected area 1 in the directions of the optical axis 25 and the optical axis 34 are provided on the optical axis 26 by the shutter 36 and the first The optical path is blocked by the movable reflecting member 27, and the image of the surgically affected area 1 in the direction of the optical axis 29 is observed by the assistant. When the first movable reflecting member 27 is rotated on the optical axis 26, the position (angle) of the surgically affected part 1 that can be observed is moved accordingly.

Next, when the first movable reflection member 27 is rotated to a position where it retracts from the optical path of the optical axis 26, a part of the light beam of the optical axis 34 is reflected by the semi-transmissive / semi-reflective member 32, and is partially reflected by the optical path of the optical axis 26. Then, the image passes through the observation optical system, and the assistant can observe the image through the eyepiece lens 24. Therefore, the assistant can observe the image of the surgically affected area 1 as viewed from directly above, like the surgeon.

Further, when the semi-transmissive and semi-reflective member 32 is rotated out of the optical path of the optical axis 26 (in the direction of the arrow in FIG. 3), the shutter 36 is also moved out of the optical path in conjunction with the movement of the affected part 1 in the direction of the optical axis 25. The image can be observed.

The present embodiment is superior to the first embodiment in that the assistant can also observe the image observed by the operator, and there is no part that the operator can observe and the assistant cannot observe.

Next, a third embodiment of the present invention will be described with reference to FIG. 4, but the same parts as those in the above-mentioned embodiments will be denoted by the same reference numerals and description thereof will be omitted.

In the drawing, reference numeral 38 denotes a second movable reflection member rotatable around a support shaft 39, and reference numeral 40 denotes an optical axis which is rotatably provided around a support shaft 41.
A third movable reflecting member which can move forward and backward with respect to the optical axis 42.
The optical axis 26 is held in the position of FIG.
The light beam of the optical axis 25 that coincides with the light beam can be reflected to observe the image, and the light beam of the optical axis 42 can be directly
26 and the image at that angle can be observed. The lens 30 ″ is used to set the focus position of the light beam on the optical axis 25,
It is possible to match the focus position of 42 light beams.

Then, if the second movable reflection member 38 is appropriately rotated, the observation site of the surgically affected part 1 that can be observed by the assistant changes as in the above-described embodiment.

In the third embodiment, the number of reflecting members of the assistant microscope 17 is only two as in the conventional apparatus, and the surgical affected part 1 can be observed from two directions and the observation site can be changed. The manufacturing cost can be reduced as compared with the second embodiment.

In the second and third embodiments, it goes without saying that the reflection optical system and the observation optical system of the assistant's microscope 17 are provided in a pair, similarly to the first embodiment.

[Effect of the invention]

As described above, according to the assistant's microscope according to the present invention, the reflecting optical system includes at least two reflecting members that reflect a light beam, and at least one reflecting member can move on the optical path and move back and forth from the optical path. Since it is held, it is possible to observe the object from a plurality of directions without moving the assistant's microscope itself, change the field of view, and do not disturb the main observer. This has a practically important advantage.

[Brief description of the drawings]

1 to 4 show an embodiment of the assistant's microscope according to the present invention. FIG. 1 is a schematic configuration diagram of the first embodiment.
FIG. 2 is an explanatory view showing the rotational position of the first movable reflection member, FIG. 3 is a schematic configuration diagram of the second embodiment, FIG. 4 is a schematic configuration diagram of the third embodiment, and FIG. It is a schematic structure figure of a microscope for assistants. 1 ... Surgical lesion, 14 ... Microscope for surgeon, 17 ... Microscope for assistant, 18,19 ... Reflective member, 20 ... Objective lens, 21 ...
Magnifying lens, 22 ... Image forming lens, 24 ... Eyepiece, 27
…… First movable reflective member, 32… Semi-transmissive semi-reflective member, 36…
... Shutter, 38 ... Second movable reflection member, 40 ... Third movable reflection member.

Claims (1)

(57) [Scope of request for utility model registration] 1. A microscope attached to a main observer microscope,
A reflection optical system for guiding a light beam from the object to be observed, and an assistant's microscope including an observation optical system for observing the light beam guided to the reflection optical system as an image, wherein the reflection optical system includes: It is composed of two or three or more reflecting members that reflect at least a part thereof, and at least two of the reflecting members are disposed on both sides with respect to the observation optical axis of the main observer microscope, respectively. At least one of them is held so as to be movable on the optical path and advanceable / retractable from the optical path, and it is possible to change an observation region or an observation direction of the observation object by moving or advancing / retreating the reflection member. Assistant microscope to do.