CN209879129U

CN209879129U - Operating microscope

Info

Publication number: CN209879129U
Application number: CN201920836901.2U
Authority: CN
Inventors: 周晓峰; 杨晓光
Original assignee: Zumax Medical Co Ltd
Current assignee: Suzhou Sumai Medical Technology Co.,Ltd.
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2019-12-31
Anticipated expiration: 2029-06-04

Abstract

The utility model relates to an operation microscope, be in including microscope mirror body, setting microscope mirror body in double-circuit zoom lens group, big objective and lighting assembly, double-circuit zoom lens group, big objective be located observation light path, lighting assembly include at least a set of first lighting assembly, second lighting assembly, first lighting assembly include first light source, throw the group of mirror, first lighting assembly still include leaded light bundle, the first end of leaded light bundle connect first light source, the second end of leaded light bundle connect the group of projection mirror. The utility model discloses utilize the characteristics that leaded light restraints can be nimble crooked, easily arrange inside microscope mirror body for can come convenient setting to the demand of lighting system according to different operations, reduced the illumination light and gone up the quantity that sets up of optical lens group, avoided complicated illumination structure, do not increase the volume of microscope mirror body, reduced production and manufacturing cost.

Description

Operating microscope

Technical Field

The utility model relates to the field of medical equipment, a surgical microscope is related to.

Background

An operation microscope has been widely used as a conventional medical device in various surgical operations such as ophthalmology, otorhinolaryngology, neurosurgery, dentistry, and the like.

Surgical microscopes for ophthalmology, known as ophthalmic surgical microscopes, can be used for cataract surgery, such as ophthalmology. The lens, which becomes opaque during cataract surgery, for example, due to a cataract, is replaced by a plastic lens. The lens of the eye is in a thin envelope, called the lens sheath. In order to remove the lens, a channel for access to the lens is formed by a thin incision in the lens sheath, and the lens is first broken up into small pieces by means of a microsurgical device, and these small pieces are then removed by means of the extraction device. The above procedure requires a special illumination system under the view of the surgical microscope, which not only provides the large range of illumination light required to illuminate the entire surgical field, but also provides the background illumination light, so-called red-reflectance illumination, of the small surgical field critical to cataract surgery, which is itself limited by the pupillary region of the lens.

For an operation microscope used in other departments, such as a dental microscope, when diagnosing and treating the whole oral cavity, or the tooth body and the periodontal, a wide range of illumination light capable of illuminating the entire operation area is required; when the root canal therapy is carried out, the root of the dental pulp needs to be illuminated, at the moment, the illumination light needs to be incident at a small angle or even vertically as far as possible, the illumination range is small, and the energy is concentrated, so that the bottom of the hole can be effectively illuminated.

Similarly, the operating microscopes of other departments have different lighting requirements in actual use.

Therefore, such current surgical microscopes are usually provided with at least two paths of illumination light, one path of illumination light is used for large-range main illumination, and the light beams of the illumination light are generally emitted at a large angle with an observation light path due to structural limitation; the other path is used for a small range of application-specific illumination and can be arranged parallel to the observation path (so-called zero-degree illumination) or exit at a small angle as required. Because different optical lens groups are required to realize the above illumination effect, energy loss is required to be reduced as much as possible, and the conventional illumination system of the operation microscope is complex in structure, difficult to machine and assemble and large in volume and weight.

On the other hand, when the illumination position needs to be adjusted, the whole set of optical lens group needs to be adjusted, so that the structure in the whole lens body is complex, and the production and manufacturing cost is greatly increased.

Disclosure of Invention

The utility model aims at providing an operation microscope, especially an ophthalmic surgery microscope.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides an operating microscope, is in including microscope mirror body, setting microscope mirror body in double-circuit zoom group, big objective and lighting assembly, double-circuit zoom group, big objective be located observation light path, lighting assembly include at least a set of first lighting assembly, second lighting assembly, first lighting assembly include first light source, throw the group of mirror, first lighting assembly still include the leaded light and restraint, the first end of leaded light restraint connect first light source, the second end of leaded light restraint connect throw the group of mirror.

Preferably, the projecting mirror group is adjustably arranged in the microscope body.

Further preferably, an adjusting mechanism for adjusting the position of the projecting lens group is arranged on the microscope body, and the adjusting mechanism is connected with the projecting lens group.

Preferably, an included angle between the first illumination light path where the light rays emitted by the projection lens group are located and the observation light path is adjustable.

Further preferably, an included angle between the first illumination light path and the observation light path is between plus or minus 2 °.

Preferably, an included angle between the first illumination light path where light rays are emitted by the projection lens group and the observation light path is 0 °.

Preferably, the first illumination assembly is provided with a plurality of groups, and the first illumination light source, the projection lens group and the light guide beam in each group of the first illumination assembly are all provided with one.

Preferably, the first lighting assembly is provided with a group, the first lighting source in the first lighting assembly is provided with one, the projection lens group is provided with a plurality of, the light guide beam is provided with a first end and a plurality of second ends, the first end of the light guide beam is connected with the first lighting source, and the plurality of second ends of the light guide beam are respectively connected with the projection lens group.

Preferably, the diameter of the light guide beam is not more than 6 mm.

Further preferably, the diameter of the light guide bundle is not more than 3.5 mm.

Preferably, a condenser lens group is arranged between the first end of the light guide beam and the first illumination light source, and the first condenser lens group is arranged to enable more light rays emitted by the first illumination light source to enter the light guide beam, so that the utilization efficiency of the first illumination light source is increased.

Preferably, a diaphragm is arranged between the second end of the light guide beam and the projection lens group, and the diaphragm can limit the size of the object plane light spot and enable the object plane light spot to have a clear edge.

Further preferably, a condenser lens group is arranged between the second ends of the light guide beams and the diaphragm, and the condenser lens group is arranged to enable more light rays to pass through the diaphragm hole of the diaphragm and be projected onto the object plane.

Preferably, a steering mirror group is arranged between the second end of the light guide beam and the projection mirror group, and the steering mirror group can assist in turning the light path, so that breakage caused by over-small bending radius of the light guide beam is avoided.

Preferably, the second illumination assembly includes a second illumination light source and an illumination mirror group, and the second illumination light source and the illumination mirror group are located on the same illumination light path.

Further preferably, the illuminating mirror group comprises a projecting mirror group, a turning mirror group and a condensing mirror group.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses utilize the characteristics that leaded light restraints can be nimble crooked, easily arrange inside microscope mirror body for can come convenient setting to the demand of lighting system according to different operations, reduced the illumination light and gone up the quantity that sets up of optical lens group, avoided complicated illumination structure, do not increase the volume of microscope mirror body, reduced production and manufacturing cost.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2a is a first schematic diagram of the optical path distribution in this embodiment;

FIG. 2b is a schematic diagram of the optical path distribution of the present embodiment;

fig. 2c is a third schematic diagram of the optical path distribution in this embodiment.

Wherein: 1. a microscope body; 2. a double-path zoom lens group; 3. a large objective lens; 40. a first illumination light source; 41. a projection lens group; 42. conducting light beam guiding; 420. a first end; 421. a second end; 50. a second illumination light source; 51. an illumination lens group; 6. the human eye; 60. a pupil; 61. fundus oculi; 7. stereo baseline distance.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An operation microscope as shown in fig. 1 comprises a microscope body, a double-path zoom lens group 2 arranged in the microscope body 1, a large objective lens 3 and an illumination assembly. Wherein: the two-way zoom lens group 2 and the large objective lens 3 are positioned on the observation light path o 1.

In this embodiment: the lighting assembly comprises at least one group of a first lighting assembly and a second lighting assembly, wherein: the first illumination assembly is used for background illumination in red light reflection.

The first illumination assembly includes a first illumination source 40, a projection lens group 41 and a light guide beam 42. The light guide bundle 42 is, for example, a fiber optic light guide bundle, and the diameter of the light guide bundle 42 is not more than 6mm, preferably not more than 3.5 mm. The first end 420 of the light guide beam 42 is connected to the first illumination source 40, and the second end 421 of the light guide beam 42 is connected to the projecting mirror group 41. The light guide beam 42 projects the light beam emitted from the first illumination light source 40 through the projection lens group 41 to illuminate the observation object.

The projecting lens group 41 can be disposed in the microscope body 1, or in the microscope body, and the position of the projecting lens group 41 can be adjusted, so that the included angle between the first illumination light path where the light ray emitted by the projecting lens group 41 is located and the observation light path o1 is adjustable. When the first illumination light path is located at a position between the two-way zoom lens group 2, the included angle between the first illumination light path and the observation light path o1 is 0 °, which is the zero-degree illumination light path o3, that is to say: the first illumination light path is parallel to the observation light path o 1; when the adjusting projecting mirror group 41 is moved upwards or downwards and the first illumination light path is located at the position b or the position c between the two-way zoom mirror group 2, the included angle between the first illumination light path and the observation light path o1 is between plus or minus 2 degrees, which is a paraxial illumination light path, as shown in fig. 2 a; in addition, the projecting lens group 41 may be further adjusted such that the first illumination light path is located at d on the left side of the two-way zoom lens group 2, or e on the right side of the two-way zoom lens group, or f or g on the upper side of the two-way zoom lens group 2, as shown in fig. 2b and 2 c.

In order to adjust the projection lens group 41, an adjusting mechanism may be disposed on the microscope body 1, and the adjusting mechanism is connected to the projection lens group 41. The adjustment mechanism may be of conventional mechanical construction, such as a combination of gears and racks, and will not be described in detail herein.

The first illumination assembly may be provided in one or more sets as desired.

The first illumination assemblies are arranged in a group, and the first illumination light source 40, the projection lens group 41 and the light guide beam 42 in the first illumination assembly are all arranged in one group, as shown in fig. 2 a. When the first illumination assembly is provided with one first illumination light source 40 and the projection lens group 41 is provided with a plurality of first illumination light sources, the light guide beam 42 has a first end 420 and a plurality of second ends 421, the first end 420 of the light guide beam 42 is connected with the first illumination light source 40, and the plurality of second ends 421 of the light guide beam 42 are respectively connected with the projection lens group 41.

The first illumination assemblies are provided with a plurality of groups, and the first illumination light source 40, the projection lens group 41 and the light guide beam 42 in each group of first illumination assemblies are all provided with one. Similarly, the effects shown in fig. 2b and 2c can be achieved.

In addition, a condenser lens group may be disposed between the first end 420 of the light guide beam 42 and the first illumination source 40; a diaphragm may be disposed between the second end 421 of the light beam 42 and the projecting mirror group 41, and a condenser lens group may be disposed between the second end 421 of the light beam 42 and the diaphragm; or a turning mirror group can be disposed between the second end 421 of the light beam 42 and the projecting mirror group 41; in addition, the optical lens group can be arranged and adjusted according to the requirement.

The second illumination assembly includes a second illumination light source 50 and an illumination lens group 51, and the second illumination light source 50 and the illumination lens group 51 are located on the same oblique illumination light path o2, as shown in fig. 2a, 2b, and 2 c. The illuminating lens group 51 may be selected from one or more of a projecting lens group, a turning lens group, and a condensing lens group as required.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an operation microscope, is in including microscope mirror body, setting microscope mirror body in double-circuit zoom group, big objective and lighting assembly, double-circuit zoom group, big objective be located observation light path, lighting assembly include at least a set of first lighting assembly, second lighting assembly, first lighting assembly include first light source, throw mirror group, its characterized in that: the first lighting assembly further comprises a light guide beam, the first end of the light guide beam is connected with the first lighting light source, and the second end of the light guide beam is connected with the projection lens group.

2. The surgical microscope of claim 1, wherein: the position of the projection lens group is adjustably arranged in the microscope body.

3. The surgical microscope of claim 1, wherein: the included angle between the first illumination light path where the light rays emitted by the projection lens group are positioned and the observation light path is adjustable.

4. The surgical microscope of claim 3, wherein: the included angle between the first illumination light path and the observation light path is between plus or minus 2 degrees.

5. The surgical microscope of claim 1 or 3, wherein: the included angle between the first illumination light path where the light rays emitted by the projecting mirror group are positioned and the observation light path is 0 degree.

6. The surgical microscope of claim 1, wherein: the first lighting assembly is provided with a plurality of groups, and the first lighting source, the projecting mirror group and the light guide beam in each group of the first lighting assembly are all provided with one.

7. The surgical microscope of claim 1, wherein: the first lighting assembly is provided with a group, one first lighting source is arranged in the first lighting assembly, the projection mirror group is provided with a plurality of light guide beams, each light guide beam is provided with a first end and a plurality of second ends, the first ends of the light guide beams are connected with the first lighting source, and the second ends of the light guide beams are respectively connected with the projection mirror group.

8. The surgical microscope of claim 1, wherein: the diameter of the light guide is not more than 6 mm.

9. The surgical microscope of claim 8, wherein: the diameter of the light guide beam is not more than 3.5 mm.

10. The surgical microscope of claim 1, wherein: the second lighting assembly comprises a second lighting source and a lighting mirror group, and the second lighting source and the lighting mirror group are located on the same lighting light path.