JP2001276092A - Simple type medical microscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple type medical microscope which has excellent portability and may be finely regulated longitudinally and laterally during the observation and alignment of the microscope with respect to a part to be inspected. SOLUTION: The microscope has a movable arm 3, a position regulator 4 freely oscillatably mounted at the front end of the movable arm 3 and a mirror body 5 mounted at the position regulator 4. The position regulator 4 has an arm mounting member 11 mounted at the movable arm 3, a mirror body mounting member 12 mounted at the mirror body 5 and a first intermediate member 13 and second intermediate member 14 interposed between the arm mounting member 11 and the mirror body mounting member 12. The first intermediate member 13 is made relatively oscillatable in a first direction with respect to the arm mounting member 11, the second intermediate member 14 is made relatively oscillatable in a second direction with respect to the first intermediate member 13 and the mirror body tube member 12 is made relatively rectilinearly displaceable with respect to the second intermediate member 14. The third direction is intersected orthogonally with the first and second directions, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a simplified medical microscope. More specifically, the present invention relates to a simple medical microscope used in otolaryngology, ophthalmology, orthopedic surgery, and the like.

[0002]

2. Description of the Related Art Hitherto, as a medical microscope, a high-performance and large-scale device used for advanced surgery in brain surgery and the like has been known. This microscope is fixedly installed in the operating room, and fine adjustment of the observation position of the microscope with respect to the operative site is performed.
Everything is done electrically without bothering the surgeon. However, it is extremely expensive and is heavy and lacks portability. Therefore, it cannot be used for outpatient treatment or for home visits involving mobile phones.

[0003] On the other hand, there are also known lightweight and compact simplified medical microscopes for outpatient treatment and portable home visits which emphasize mobility. This simple medical microscope is used by attaching it to a table or the like, and is excellent in portability. But,
The positioning of the microscope with respect to the portion to be inspected is generally performed by rotating an arm connected by a rotating shaft, a pantograph, and the like up, down, left, and right, so that fine adjustment is difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and is a portable medical microscope having excellent portability. It is an object of the present invention to provide a simple medical microscope that can be adjusted.

[0005]

A simplified medical microscope according to the present invention comprises a movable arm, a position adjuster attached to a tip of the movable arm, and a microscope main body attached to the position adjuster. The position adjuster is configured to be capable of finely adjusting the position of the microscope main body in at least first and second directions substantially orthogonal to each other.

[0006] With this configuration, after the observation position of the microscope main body is roughly adjusted (coarse movement) with respect to the portion to be inspected by the movable arm, the inspector performs the inspection with the microscope main body, and the accurate position is adjusted by the position adjuster. Matching can be performed. Further, even when it is desired to slightly change the portion to be inspected, it can be easily performed by the position adjuster while looking into the microscope main body.

[0007] In the simple medical microscope in which the position adjuster is swingably and fixedly attached to the tip of the movable arm, the inspector moves the inspection object to a desired position.
It can be arranged in a desired direction, and inspection can be easily performed in such a position and direction.

In the simplified medical microscope, wherein the position adjuster is configured to swing the microscope main body in each of the first and second directions substantially orthogonal to each other, the position adjusters are orthogonal to each other. Since the configuration for displacing in two directions is simplified, the position adjuster is lightweight and compact, and is suitable for being attached to the tip of the movable arm.

In this simplified medical microscope, the position adjuster includes an arm attachment member attached to the movable arm, a microscope attachment member attached to the microscope main body, and an arm attachment member and the microscope attachment member. A first intermediate member interposed therebetween, the first intermediate member being swingable in a first direction relative to the arm mounting member, and a microscope mounting member relative to the first intermediate member. Is relatively rotatable in the second direction, it is possible to easily configure the displacement mechanism in the two directions.

Further, the position adjuster includes an arm mounting member mounted on the movable arm, a microscope mounting member mounted on the microscope main body, and a first intermediate member interposed between the arm mounting member and the microscope mounting member. And a second intermediate member, wherein the first intermediate member is swingable relative to the arm mounting member in the first direction, and the second intermediate member is relatively movable with respect to the first intermediate member. In a second direction, the microscope mounting member can be displaced linearly in a third direction relative to the second intermediate member, and the third direction is the first and second directions. In a simple medical microscope configured to be orthogonal to each of the directions, for example, by setting the third direction to be a direction parallel to the optical axis of the microscope main body, the inspection target is uneven. Easy to focus on Ukoto can. Also, as a result of displacing in the other two directions for alignment, refocusing can be easily performed even if the focus is deviated.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a simplified medical microscope (hereinafter simply referred to as a microscope) 1 according to an embodiment of the present invention.

The microscope 1 has a plurality of arm members 2,
7, a movable arm 3 connected so as to be mutually displaceable, a position adjuster 4 attached to the tip of the movable arm 3, and a microscope main body (hereinafter, referred to as the attached body) attached to the distal end of the position adjuster 4. 5).

The adjacent arm members 2 of the movable arm 3 are connected to each other via a rotary shaft 6, and are rotatable about the rotary shaft 6. Some arm members are formed in a pantograph type. The pantograph arm member 7 has two support arms 7a arranged in parallel as shown in the figure, and is attached so as to swing with respect to the adjacent arm member 2 while maintaining the parallel state.

The movable arm 3 is moved in a desired direction by a desired distance, so that the observation position of the mirror 5 is roughly adjusted to the portion to be inspected. Thereafter, the position adjuster 4 accurately positions the test portion in the X and Y directions, which will be described later, and, if necessary, positions in the Z direction (focusing).

The position adjuster 4 is attached to the tip of the arm member 2 by a ball joint 8 so as to be swingable in all directions. Further, the connecting part by each rotating shaft 6 and the connecting part by the ball joint 8 are operated by operating the knob 9 to restrain the rotation and the swing, and the restraint is released to enable the rotation and the swing. Can be. Thereby, the arm members 2 and 7 can be fixed at an arbitrary position and an arbitrary direction.

FIG. 2 shows the position adjuster 4 in detail. FIG. 2A is a plan view, and FIG.
2A is a cross-sectional view taken along line BB, FIG. 2C is a bottom view, and FIG. 2D is a side view taken along line DD in FIG. 2B. The position adjuster 4 is a housing 10 that encloses internal components.
However, in each of the figures, the internal components are shown in a see-through manner.

The position adjuster 4 includes an arm attachment member 11 attached to the movable arm 3, a lens body attachment member 12 to which the lens body 5 is attached, and a first intermediate member disposed between the two members 11, 12. It has a member 13 and a second intermediate member 14. Adjacent members are configured to be capable of relative displacement with each other.

The arm mounting member 11 has an intermediate portion rotatably supported by the first intermediate member 13 by a rotating shaft member 11a, and has a spherical body 15 connected at one end to a tip of the arm member 2 as a ball joint. Are formed. At the other end, a forked portion 16 is formed.
(B)).

The first intermediate member 13 is provided with a first screw member 17 so as to be rotatable and unable to move straight (see FIG. 2B). The tip of the first screw member 17 is formed with a knob 17a for its rotation operation. A nut 18 is screwed into the first screw member 17, and the fork portion 16 of the arm mounting member 11 is engaged with an engaging pin 18a protruding from the nut. Thereby, the arm mounting member 11 and the first intermediate member 13 are configured to be swingable with each other. This swing direction is called a Y direction.

A second screw member 19 is further attached to the first intermediate member 13 so as to be rotatable and unable to move straight (see FIG. 2C). On both ends of the second screw member 19, knobs 19a for rotating operation thereof are formed. Second screw member 19
Is disposed in a direction whose longitudinal direction is perpendicular to the longitudinal direction of the first screw member. A nut 20 is screwed into the second screw member 19, and an engaging pin 20a is protruded from the nut 20. Since the engaging pin 20a is engaged with the engaging slit 21 formed in the second intermediate member 14 (see FIG. 2C), the nut 20 cannot rotate and the second screw member 19 Is not allowed to travel straight along the longitudinal direction. In addition, above the position where the second screw member 19 is provided in the first intermediate member 13 (FIG. 2B).
A rotation shaft 22 protrudes from the upper part (middle part), and the rotation shaft 22 rotatably penetrates the second intermediate member 14. As a result, the rotation of the second screw member 19 causes the second screw member 19 to move relative to the nut 20. In other words, the first intermediate member 13 rotates about the rotation shaft 22 with respect to the second intermediate member 14. This rotation direction is perpendicular to the direction of relative swing between the arm mounting member 11 and the first intermediate member 13. This rotation direction is called an X direction.

The mirror mounting member 12 is slidably mounted on the second intermediate member 14 in a direction perpendicular to the direction of relative swing between the first intermediate member 13 and the second intermediate member 14. . Specifically, the two 12, 14 are connected to each other by a slidable tenon H and a groove (mortise) M (see FIGS. 2 (a) and 2 (c)). Then, a third screw member 23 is attached to the lens body attaching member 12 so as to be rotatable and not to go straight (see FIG. 2B). The tip of the third screw member 23 is formed with a knob 23a for its rotation operation. Naturally, the longitudinal direction of the third screw member 23 is parallel to the sliding direction. The third screw member 23 includes
A nut 24 integrally formed with the second intermediate member 14 is screwed (see FIGS. 2A, 2B, and 2C). As a result, by rotating the third screw member 23, the nut 24 relatively moves with respect to the third screw member 23, in other words, the second intermediate member 14 with respect to the lens barrel mounting member 12. This moving direction is called a Z direction.

The second intermediate member 1 in the lens body mounting member 12
An attachment shaft 25 to be fixed to the mirror body 5 is formed on the side opposite to the connection portion with the mirror 4.

FIG. 1 described above shows a state in which the position adjuster 4 having such a configuration is mounted between the mirror body 5 and the movable arm 3. The mirror 5 is attached to the position adjuster 4 such that the optical axis L is parallel to the Z direction. Of the relative displacements between the components of the position adjuster 4, only the Z-direction movement is a straight-line displacement, and the X-direction and the Y-direction are swings (arc displacements). Therefore, the displacement directions of X, Y, and Z are not completely mutually orthogonal. However, each displacement direction includes components in directions orthogonal to each other. In addition, a large alignment in the direction of three axes perpendicular to each other is possible by the displacement of the movable arm 3. After that, since the fine adjustment is performed by the position adjuster 4, a slight displacement in each of the X and Y directions is sufficient. Since the displacement in each of the X and Y directions is slight, the displacement in the Z direction accompanying the displacement is also small, and does not significantly affect the focusing of the mirror on the observation position.

Therefore, the present invention also includes a microscope provided with a position adjuster having only a displacement mechanism in the X and Y directions. That is, the lens mount member 12 in the position adjuster 4 shown in FIG. 2 may be removed, and the lens body 5 may be mounted on the second intermediate member 14. By using a mirror with a large depth of focus, the influence on focusing can be further reduced. However, by including a displacement mechanism in the Z direction as in the position adjuster 4, when an undesired shift of the focal position occurs due to the swing in the X and Y directions, the knob 23a of the third screw member 23 is moved. It is preferable because focusing can be performed by operation. In addition, by including the displacement mechanism in the Z direction in the position adjuster 4, it is possible to suitably cope with a case where the surface S to be inspected (see FIG. 1) is uneven.

Further, the displacement mechanism is not limited to the feed screw and the nut. In particular, for the swing mechanism in the X and Y directions, for example, a ball joint may be used. Specifically, a screw is arranged in a direction orthogonal to each other on the ball receiving side of the members to be rocked with each other, and the other (ball side member) is pushed by this screw. Further, the member on the ball side is urged by a spring or the like in a direction opposite to a direction in which the member is pushed.

The position adjuster 4 is light in weight by adopting the above configuration. Only the displacement of the mirror body 5 in the direction of the optical axis L (displacement in the Z direction) is so-called linear displacement by means of a feed screw and a nut and a slide guide, and the displacement in the other directions (X and Y directions) is Although the swing is performed by the nut and the rotating shaft, the linear displacement type may be used by using the above-described Z-direction displacement mechanism for the displacement in all directions. However, the swinging mechanism is simpler and lighter, which is more desirable for a simple microscope.

In FIG. 1, reference numeral 26 denotes an illumination light source for illuminating the portion to be inspected, and reference numeral 27 denotes an optical fiber for transmitting illumination light from the illumination light source 26 to the mirror 5. . At the base of the movable arm 3, a clamp 28 for attaching to the table T or the like is provided. Of course, a simple floor-standing stand or the like may be used instead of the clamp 28.

[0029]

According to the present invention, after the focus of the microscope main body is roughly adjusted to the part to be inspected by the movable arm, the inspector inspects the microscope main body and performs accurate alignment by the position adjuster. It can be performed. Further, even when it is desired to slightly change the portion to be inspected, it can be easily performed by the position adjuster while looking into the microscope main body.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a simplified medical microscope of the present invention.

2 (a) is a plan view of a position adjuster applicable to the simplified medical microscope of FIG. 1, and FIG. 2 (b) is a plan view of FIG.
2A is a cross-sectional view taken along line BB, FIG. 2C is a bottom view, and FIG. 2D is a side view taken along line DD in FIG. 2B.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Simplified medical microscope 2 Arm member 3 Movable arm 4 Position adjuster 5 Mirror 6 Rotating axis 7 Pantograph arm member 7a Support arm 8 Ball joint 9 Knob 10 Housing 11 Arm mounting member 11a Rotating shaft member 12 Mirror mounting member 13 First intermediate member 14 Second intermediate member 15 Sphere 16 Fork member 17 First screw member 17a Knob 18 Nut 18a Engagement pin 19 Second screw member 19a Knob 20 Nut 20a Engagement pin 21 Engagement slit 22 Rotating shaft 23 Third Screw member 23a Knob 24 Nut 25 Mounting shaft 26 Illumination light source 27 Optical fiber 28 Clamp H Navel L Optical axis of mirror M Groove S Surface to be inspected T Table

Claims (5)

[Claims] 1. A movable arm, a position adjuster attached to a tip of the movable arm, and a microscope main body attached to the position adjuster, wherein the position adjusters are at least a substantially orthogonal to each other. A simplified medical microscope configured to be capable of finely adjusting the position of a microscope main body in each of a first direction and a second direction. 2. The simplified medical microscope according to claim 1, wherein said position adjuster is swingably and fixedly attached to a tip of a movable arm. 3. The simplified medical microscope according to claim 1, wherein the position adjuster is configured to swing the microscope main body in each of the first and second directions substantially orthogonal to each other. 4. A position adjusting device wherein the position adjuster is attached to a movable arm, a microscope attaching member attached to a microscope main body, and a first intermediate member interposed between the arm attaching member and the microscope attaching member. The first intermediate member is swingable in a first direction relatively to the arm mounting member, and the microscope mounting member is relatively movable in the second direction relative to the first intermediate member. 4. The simple medical microscope according to claim 3, wherein the microscope is configured to be swingable. 5. The arm adjuster attached to the movable arm, the microscope attachable member attached to the microscope main body, and the first intermediate member interposed between the arm attachable member and the microscope attachable member. And a second intermediate member, wherein the first intermediate member is swingable relative to the arm mounting member in the first direction, and the second intermediate member is relatively movable with respect to the first intermediate member. In a second direction, the microscope mounting member can be displaced linearly in a third direction relative to the second intermediate member, and the third direction is the first and second directions. 4. The simplified medical microscope according to claim 3, wherein the microscope is configured to be orthogonal to each of the directions.