CN112305744A

CN112305744A - Centering surrounding adjusting bracket for medical microscope

Info

Publication number: CN112305744A
Application number: CN202011201363.3A
Authority: CN
Inventors: 刘一靖; 程蔚蔚; 王晓娟
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-02-02

Abstract

The invention relates to a centering surrounding adjusting bracket for a medical microscope, which aims to solve the problem of deviation of the field of view of an objective lens in the adjusting process of the microscope and comprises a base, wherein an objective table arranged above the base and an objective lens bracket arranged above the objective table are arranged on the base; the shell is provided with two guide blocks which are respectively in one-to-one correspondence with the two ends of the arc-shaped plate from top to bottom, and the guide blocks are rotationally connected with the shell through an axis which is arranged on the upper end surface of the objective table and is vertically intersected with the axis of the arc-shaped plate at the center of the upper end surface of the objective table; an arc-shaped sliding groove which is coaxial with the arc-shaped plate is formed in the guide block, a sliding block is arranged in the arc-shaped sliding groove, an electric telescopic rod which is arranged towards the center is arranged on the sliding block, one end of the electric telescopic rod is connected with the sliding block, and the other end of the electric telescopic rod is hinged with the corresponding end of the arc-shaped plate through a rotating shaft; an objective lens positioning cylinder sliding along the arc direction of the arc plate is arranged on the arc plate.

Description

Centering surrounding adjusting bracket for medical microscope

Technical Field

The invention relates to the field of medical observation instruments in the pathology department, in particular to a centering surrounding adjusting bracket for a medical microscope.

Background

In a pathological medical observation stage, a microscope is indispensable observation equipment, and because the number and the variety of medical pathological samples are various, the angle, the height, the focal length and the like of the microscope need to be adjusted according to different types of samples in the observation process; the technique of current microscope is comparatively mature, the altitude mixture control of its accommodation process mainly relies on microscope self angle modulation and objective table can be realized, however, the angular variation of current microscope or the altitude mixture control of objective table must arouse the skew between objective field of vision and the sample, thereby must constantly adjust the position of the height of microscopical angle and objective table and removal slide glass and just enable the sample and arrange objective field of vision again in, not only the operation is inconvenient, the regulation efficiency is low, medical personnel and slide glass unnecessary contact number of times have also been increased, the secondary pollution probability of sample has been improved, be unfavorable for the permanent save of sample.

Disclosure of Invention

In order to overcome the technical defects in the prior art, the invention provides the centering and surrounding adjusting bracket for the medical microscope, which aims to solve the problem of deviation of the field of view of an objective lens in the adjusting process of the existing microscope and improve the adjusting efficiency of the microscope.

The technical scheme for solving the problem is as follows: the device comprises a base, wherein an objective table arranged above the base and an objective lens support arranged above the objective table are arranged on the base, the objective lens support consists of a shell with a vertical axis and an upwards elastic arched arc-shaped plate arranged on the inner side of the shell, the shell is an annular shell which is communicated up and down, and in an initial state, an axis a where the arc of the arc-shaped plate is positioned is arranged on the upper end surface of the objective table and passes through the center of the upper end surface of the objective table; the shell is provided with two guide blocks which are respectively in one-to-one correspondence with the two ends of the arc-shaped plate from top to bottom, and the guide blocks are rotatably connected with the shell through an axis b which is arranged on the upper end surface of the objective table and is vertically intersected with the axis a of the arc-shaped plate at the center of the upper end surface of the objective table; the guide block is provided with an arc-shaped sliding groove which is coaxially arranged with the arc of the arc-shaped plate, a sliding block which is in sliding fit with the arc-shaped sliding groove is arranged in the arc-shaped sliding groove, the sliding block is provided with an electric telescopic rod which is radially arranged along the axis of the arc-shaped plate, one end of the electric telescopic rod is connected with the sliding block, the other end of the electric telescopic rod is rotatably connected with the corresponding end of the arc-shaped plate through a rotating shaft which is parallel to the axis a of the arc-shaped plate, and the axis of the electric telescopic rod passes through the center; because the rotation axis b of the guide block and the axis a of the arc-shaped sliding chute always pass through the center of the upper end surface of the objective table, when the rotation of the guide block and the sliding of the sliding block are generated simultaneously, the sliding block generates concentric surrounding motion in a space along the center of the upper end surface of the objective table, the lower end of the electric telescopic rod always points to the center of the upper end surface of the objective table, and the axis a rotates along the axis b and still is positioned at or approaches to the center of the upper end surface of the objective table; the arc on have along the gliding objective alignment sleeve of arc direction of arc, the axis process of objective alignment sleeve the center of objective up end promptly objective alignment sleeve centripetal setting, coaxial arrangement has the microscope in the objective alignment sleeve, in the rotation of guide block and electric telescopic handle's concertina movement process, the axis an of arc is located or approaches to the center of objective up end all the time, then when the objective alignment sleeve slides on the arc, the axis of objective alignment sleeve is directional all the time or approaches the center of objective up end to realized the each side regulation of microscope under the prerequisite of guaranteeing the field of vision centering.

According to the invention, by means of linkage and feedback deformation among the arc-shaped plate, the guide block, the sliding block and the electric telescopic rod, the centripetal positioning of the objective positioning cylinder at any angle and at any height is realized, so that in the actual use process, the slide glass at the center of the upper end surface of the objective table is always positioned at the visual field focus of the microscope, the slide glass does not need to be adjusted and moved by the objective table, the adjustment efficiency of the microscope is greatly improved, the contact frequency of medical care personnel and a sample slide glass is effectively reduced, the sanitation and safety of the slide glass are ensured, and the accidental infection risk of the medical care personnel is avoided.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a sectional view of an objective lens holder according to the present invention.

Fig. 3 is a cross-sectional view a-a of the present invention.

Fig. 4 is an axial schematic view of the present invention.

Fig. 5 is an axial cross-sectional view of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present invention includes a base 1, an objective table 2 disposed above the base 1 and an objective lens holder disposed above the objective table 2 are disposed on the base 1, the objective lens holder is composed of a housing 3 with a vertical axis and an arc-shaped plate 4 disposed inside the housing 3 and elastically arched upward, the housing 3 is an annular housing penetrating up and down, and in an initial state, an axis a of an arc of the arc-shaped plate 4 is disposed on an upper end surface of the objective table 2 and passes through a center of the upper end surface of the objective table 2; the shell 3 is provided with two guide blocks 5 which are respectively in one-to-one correspondence with the two ends of the arc-shaped plate 4 from top to bottom, and the guide blocks 5 are rotatably connected with the shell 3 through an axis b which is arranged on the upper end surface of the objective table 2 and is vertically intersected with the axis a of the arc-shaped plate 4 at the center of the upper end surface of the objective table 2; the guide block 5 is provided with an arc-shaped sliding chute 6 which is coaxially arranged with the arc of the arc-shaped plate 4, a sliding block 7 which is in sliding fit with the arc-shaped sliding chute 6 is arranged in the arc-shaped sliding chute 6, the sliding block 7 is provided with an electric telescopic rod 8 which is arranged along the center of the upper end surface of the objective table 2 in the radial direction, namely, the axis of the electric telescopic rod 8 is arranged centripetally through the center of the upper end surface of the objective table 2, namely, the electric telescopic rod 8, one end of the electric telescopic rod 8 is connected with the sliding block 7, and the other end of the electric telescopic rod 8 is rotatably connected with the corresponding end of the arc-shaped plate; referring to fig. 1 and 2, when the guide block 5 rotates back and forth on the housing 3 along the axis b, the arc-shaped plate 4 rotates back and forth along with the guide block 5 in the same direction under the driving of the electric telescopic rod 8 and the sliding block 7; when the two electric telescopic rods 8 generate synchronous telescopic motion, the arc-shaped plate 4 moves up and down (centrifugally or centripetally) along with the synchronous telescopic motion, at the moment, the distance between the upper ends of the two electric telescopic rods 8 is changed, and the distance between the two ends of the arc-shaped plate 4 is relatively unchanged, so that the electric telescopic rods 8 generate sliding motion due to the reaction force of the two ends of the arc-shaped plate 4; then, since the rotation axis b of the guide block 5 and the axis a of the sliding track (i.e. the arc chute 6) of the slider 7 pass through the center of the upper end surface of the object stage 2, during the sliding process of the slider 7, the length direction of the electric telescopic rod 8 always keeps centripetal (i.e. the axis of the electric telescopic rod 8 always passes through the center of the upper end surface of the object stage 2), therefore, it can be seen that, if the distance between the two electric telescopic rods 8 is not changed, the arc plate 4 does not deform during the up-and-down movement, the axis a inevitably moves up and down along with the arc plate 4 to be far away from the center of the upper end surface of the object stage 2, and the distance between the upper ends of the two electric telescopic rods 8 changes, an acting force is inevitably generated on the arc plate 4, so that the arc plate 4 elastically deforms to change the arc radius, under the compensation sliding of the, the deformation of the arc-shaped plate 4 is effectively restricted by the electric telescopic rod 8, so that the axis a of the arc-shaped plate 4 after elastic deformation is still positioned at or approaches the center of the upper end surface of the objective table 2 within a certain error range; therefore, as the rotation axis b of the guide block 5 and the axis a of the arc chute 6 always pass through the center of the upper end surface of the object stage 2, when the above two motions, i.e. the rotation of the guide block 5 and the sliding of the slide block 7, are simultaneously generated, the slide block 7 generates a concentric surrounding motion in a space along the center of the upper end surface of the object stage 2, the lower end of the electric telescopic rod 8 always points to the center of the upper end surface of the object stage 2, and the axis a rotates along the axis b and still is located at or close to the center of the upper end surface of the object stage 2; the objective positioning cylinder 10 sliding along the arc direction of the arc plate 4 is arranged on the arc plate 4, the axis of the objective positioning cylinder 10 passes through the center of the upper end surface of the objective table 2, namely the objective positioning cylinder 10, and is arranged centripetally, a microscope 11 is coaxially arranged in the objective positioning cylinder 10, and in the processes of the rotation of the guide block 5 and the telescopic motion of the electric telescopic rod 8, the axis a of the arc plate 4 is always positioned at or approaches the center of the upper end surface of the objective table 2, so that when the objective positioning cylinder 10 slides on the arc plate 4, the axis of the objective positioning cylinder 10 always points at or approaches the center of the upper end surface of the objective table 2, thereby realizing the all-directional adjustment of the objective positioning cylinder 10 and also the microscope 11 on the premise of ensuring the visual field centering, avoiding the manual adjustment of the position of a glass slide, and being more convenient and sanitary to use.

Further, arc 4, guide block 5, arc spout 6, slider 7, electric telescopic handle 8 and pivot 9 constitute the centering and encircle adjustment mechanism, the centering encircle adjustment mechanism have two sets ofly, two sets of the centering encircle arc 4 upper and lower distribution and the cross arrangement of among the adjustment mechanism, objective location section of thick bamboo 10 simultaneously with two the centering encircle 4 sliding connection of arc among the adjustment mechanism to improve objective location section of thick bamboo 10's overall stability, avoid rocking of objective location section of thick bamboo 10 after adjusting, reduce unnecessary latency, improve the efficiency of medical science observation, guarantee the accuracy of medical observation.

Furthermore, a guide groove 12 penetrating through the arc-shaped plate 4 along the radial direction of the arc-shaped plate 4 is formed in the arc-shaped plate 4, the guide groove 12 is arranged along the arc direction of the arc-shaped plate 4, and the objective lens positioning cylinder 10 is arranged in the guide groove 12 in a sliding manner; the objective positioning cylinder 10 is provided with bosses 13 respectively arranged inside and outside the arc-shaped plate 4 (below and above the arc-shaped plate 4 shown in figures 1 and 2), the objective positioning cylinder 10 is coaxially sleeved with a support ring 14 arranged between the arc-shaped plate 4 and the boss 13, the boss 13 is connected with the support ring 14 on the same side through a spring 15, the objective positioning cylinder 10 is uniformly stressed by the elasticity of the spring 15 to keep a centripetal state, meanwhile, the support ring 14 is tightly attached to the surface of the arc-shaped plate 4 under the elastic force of the spring 15, so that after the arc-shaped plate 4 deforms, no shaking gap is generated between the objective positioning cylinder 10 and the arc-shaped plate 4, and the stability and accuracy of the visual field center during the encircling centering adjustment are ensured; in addition, the elastic force of the spring 15 causes a certain friction force between the support ring 14 and the arc-shaped plate 4, which can be used for auxiliary positioning of the objective positioning cylinder 10 to prevent accidental sliding.

Furthermore, the shell 3 is provided with at least one arc-shaped slide rail 16 corresponding to the guide block 5, the arc-shaped axis of the arc-shaped slide rail 16 is an axis b which is arranged on the upper end surface of the object stage 2 and vertically intersects with the arc-shaped axis of the arc-shaped plate 4 at the center of the upper end surface of the object stage 2, and the arc-shaped slide rail 16 penetrates through the end part of the guide block 5 in a sliding manner to form a structure which is connected between the guide block 5 and the shell 3 in a rotating manner through the axis b.

Furthermore, a crank 17 and a connecting rod 18 which are arranged above the shell 3 are arranged on the base 1, one end of the crank 17 is rotatably connected with the base 1 through a vertical shaft 19 which is vertically arranged, the other end of the crank 17 is rotatably hinged with one end of the connecting rod 18 through a hinge shaft 20 which is vertically arranged, a sleeve 21 which is arranged above the shell 3 is arranged at the upper end of the objective lens positioning cylinder 10, and the other end of the connecting rod 18 is universally hinged with the sleeve 21; the crank 17 is provided with an accommodating groove 22 vertically penetrating through the crank 17, a roller 23 is arranged in the accommodating groove 22, the axis of the roller 23 is respectively and vertically intersected with the axis of the vertical shaft 19 and the axis of the hinge shaft 20, two ends of the roller 23 are respectively provided with a screw rod 24 coaxially arranged with the roller 23, one end of each screw rod 24 is coaxially and slidably connected with the roller 23 through a spline, the other ends of the two screw rods 24 are respectively in threaded connection with the crank 17 and are respectively contacted with the vertical shaft 19 or the hinge shaft 20 on the corresponding side, and the thread directions of the two screw rods 24 are opposite; when the roller 23 is rotated, the two screw rods 24 synchronously rotate along with the roller under the effect of the spline, so that thread transmission is generated between the screw rods 24 and the crank 17, and the thread rotating directions on the two screw rods 24 are opposite, so that when the roller 23 rotates in any direction, the thread transmission directions of the two screw rods 24 are opposite, namely, the two screw rods 24 move in the opposite direction or in the opposite direction, so that the corresponding vertical shaft 19 and the hinge shaft 20 are simultaneously locked or unlocked, and the brake control of the crank-link mechanism is realized; when the crank linkage is active, the objective positioning cylinder 10 is adjustable, and when the crank linkage is actuated, the objective positioning cylinder 10 is fixed for easy viewing, further preventing accidental sliding of the objective positioning cylinder 10.

Furthermore, a sleeve ring 25 is coaxially arranged around the sleeve 21, the sleeve ring 25 is hinged to the sleeve 21 through a first rotating shaft 26, the sleeve ring 25 is hinged to the other end of the connecting rod 18 through a second rotating shaft 27, the axis of the first rotating shaft 26 is perpendicularly crossed with the axis of the second rotating shaft 27, the crossed point of the axis of the first rotating shaft 26 is arranged on the axis of the sleeve 21, and the other end of the connecting rod 18 is in universal hinge connection with the sleeve 21 through the sleeve ring 25, the first rotating shaft 26 and the second rotating shaft 27.

Further, the casing 3 be the annular shell that link up downwards, there are a plurality of shadowless lamps 28 that distribute in casing 3 lower extreme along the axis circumference of casing 3 on the casing 3, shadowless lamp 28 is towards the center of objective table 2 up end, both can realize the light filling and the illumination of objective table 2, can not produce the light and shadow influence to slide glass etc. again.

When the microscope positioning device is used, only the microscope 11 is required to be installed on the objective positioning cylinder 10, only the crank-link mechanism needs to be unlocked and the objective positioning cylinder 10 or the microscope 11 is directly moved manually in the actual adjusting process, a plurality of knobs at different positions do not need to be adjusted, the crank-link mechanism is locked after the adjustment is finished, the positioning and locking of the objective positioning cylinder 10 are realized, the operation is convenient and efficient, the visual field positioning is accurate, and the unnecessary burden of medical personnel is reduced.

Claims

1. The utility model provides a medical microscope centering encircles and adjusts support, includes base (1), has on base (1) to place objective table (2) above base (1) and the objective lens support of placing objective table (2) in, characterized by, objective lens support by axis vertical set up casing (3) with place the inboard arc (4) of casing (3) and constitute, the axis of arc (4) passes through the center of objective table (2) up end; the shell (3) is provided with two guide blocks (5) which respectively correspond to the two ends of the arc-shaped plate (4) one by one up and down, and the guide blocks (5) are rotatably connected with the shell (3) through an axis which is arranged on the upper end surface of the objective table (2) and is vertically intersected with the axis of the arc-shaped plate (4) and is perpendicular to the center of the upper end surface of the objective table (2); an arc-shaped sliding groove (6) which is coaxial with the arc-shaped plate (4) is formed in the guide block (5), a sliding block (7) which is in sliding fit is arranged in the arc-shaped sliding groove (6), an electric telescopic rod (8) which is radially arranged along the center of the upper end face of the objective table (2) is arranged on the sliding block (7), one end of the electric telescopic rod (8) is connected with the sliding block (7), and the other end of the electric telescopic rod (8) is rotatably connected with the corresponding end of the arc-shaped plate (4) through a rotating shaft (9); the arc-shaped plate (4) is provided with an objective lens positioning cylinder (10) which slides along the arc direction of the arc-shaped plate (4), and the axis of the objective lens positioning cylinder (10) passes through the center of the upper end surface of the objective table (2).

2. The centering and surrounding adjusting bracket for the medical microscope as claimed in claim 1, wherein the arc-shaped plate (4), the guide block (5), the arc-shaped sliding groove (6), the sliding block (7), the electric telescopic rod (8) and the rotating shaft (9) form a centering and surrounding adjusting mechanism, the centering and surrounding adjusting mechanism comprises two groups, the arc-shaped plates (4) in the two groups of centering and surrounding adjusting mechanisms are distributed up and down and are arranged crosswise, and the objective lens positioning cylinder (10) is simultaneously connected with the arc-shaped plates (4) in the two centering and surrounding adjusting mechanisms in a sliding manner.

3. A centering surround adjusting bracket for a medical microscope according to claim 1, wherein the arc-shaped plate (4) is provided with a guide groove (12) which penetrates through the arc-shaped plate (4) along the radial direction of the arc-shaped plate (4), the guide groove (12) is arranged along the arc direction of the arc-shaped plate (4), and the objective lens positioning cylinder (10) is slidably arranged in the guide groove (12); the lens positioning cylinder (10) is provided with bosses (13) which are respectively arranged inside and outside the arc-shaped plate (4), the lens positioning cylinder (10) is coaxially sleeved with a support ring (14) arranged between the arc-shaped plate (4) and the boss (13), and the boss (13) and the support ring (14) on the same side are connected through a spring (15).

4. A medical microscope centering surround adjusting bracket according to claim 1, characterized in that the housing (3) is provided with at least one arc-shaped slide rail (16) corresponding to the guide block (5), the arc-shaped axis of the arc-shaped slide rail (16) is an axis which is arranged on the upper end surface of the object stage (2) and perpendicularly intersects with the arc-shaped axis of the arc-shaped plate (4) at the center of the upper end surface of the object stage (2), and the arc-shaped slide rail (16) slidably penetrates through the guide block (5) to form a structure which is rotatably connected between the guide block (5) and the housing (3) through the axis.

5. A centering and surrounding adjusting bracket for a medical microscope according to claim 1, wherein the base (1) is provided with a crank (17) and a connecting rod (18) which are arranged above the shell (3), one end of the crank (17) is rotatably connected with the base (1) through a vertical shaft (19) which is vertically arranged, the other end of the crank (17) is rotatably hinged with one end of the connecting rod (18) through a hinge shaft (20) which is vertically arranged, the upper end of the objective positioning cylinder (10) is provided with a sleeve (21) which is arranged above the shell (3), and the other end of the connecting rod (18) is universally hinged with the sleeve (21); the crank (17) is provided with a containing groove (22) which vertically penetrates through the crank (17), a roller (23) is arranged in the containing groove (22), the axis of the roller (23) is vertically crossed with the axis of the vertical shaft (19) and the axis of the hinge shaft (20) respectively, two ends of the roller (23) are provided with screw rods (24) which are coaxially arranged with the roller (23), one ends of the screw rods (24) are coaxially and slidably connected with the roller (23), the other ends of the two screw rods (24) are respectively in threaded connection with the crank (17) and are respectively contacted with the vertical shaft (19) or the hinge shaft (20) on the corresponding side, and the thread turning directions on the two screw rods (24) are opposite.

6. A medical microscope centering surround adjusting bracket according to claim 5, characterized in that the sleeve (21) is surrounded by a collar (25) which is coaxially arranged with the sleeve (21), the collar (25) is hinged with the sleeve (21) through a first rotating shaft (26), the collar (25) is hinged with the other end of the connecting rod (18) through a second rotating shaft (27), the axis of the first rotating shaft (26) is perpendicularly crossed with the axis of the second rotating shaft (27), and the crossed point is arranged on the axis of the sleeve (21).

7. A medical microscope centering surround adjusting bracket according to claim 1, characterized in that the housing (3) is a downwardly penetrating annular shell, and the housing (3) is provided with a plurality of shadowless lamps (28) circumferentially distributed at the lower end of the housing (3) along the axis of the housing (3).