CN115177204A

CN115177204A - High-resolution endoscope integrated with light guide beam

Info

Publication number: CN115177204A
Application number: CN202210778828.4A
Authority: CN
Inventors: 万莉平; 蒋礼阳; 冉龙云; 廖家胜
Original assignee: Shanghai Shutu Precision Instrument Co ltd
Current assignee: Shanghai Shutu Precision Instrument Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-14

Abstract

The invention discloses a high-resolution endoscope integrated with a light guide beam, which belongs to the field of endoscopes, wherein an image sensor and the light guide beam are arranged inside a handle, an excitation light source module and an imaging module are arranged in parallel, the image sensor is positioned on one side of the imaging module and positioned on the same straight line, the excitation light source module is positioned inside the handle and connected with the light guide beam, light emitted by a light source enters the excitation light source module through the light guide beam, the light vertically enters a fluorescent component of the imaging module after being reflected by a reflecting component, the light is reflected and focused onto an image surface of an objective component after being processed by the fluorescent component, and the objective component magnifies and images a measured object to the image sensor; through the design, the distance between the axis of the excitation light source module and the axis of the imaging module is reduced, so that the light guide beam can be integrated in the handle, and an original heavy light guide beam cable is introduced into the tail part of the handle from the side surface of the endoscope, so that the whole endoscopic microsystem is compact in structure, light in weight and convenient for doctors to hold, operate and position.

Description

High-resolution endoscope integrated with light guide beam

Technical Field

The invention relates to an endoscope technology, in particular to a high-resolution endoscope integrated with a light guide beam.

Background

Nowadays, the living standard of the world is continuously improved, and people also put higher requirements on medical technology. As an important means for disease diagnosis and medical research, a novel imaging technology with the advantages of rapidness, no damage, high resolution, high specificity and the like of an operation microscope plays an important role in clinical medicine and basic medical research. And traditional operation endoscope facility is heavy, and is expensive, and the structure of general traditional endoscope all is with the design of leaded light beam perpendicular to camera lens, this kind though convenient to detach, but to this kind of the operation that becomes more meticulous of neurosurgery tumour, the stability that the doctor was handed is seriously influenced to the leaded light beam of side direction, and during the handheld operation of doctor one hand, the side structure can influence the doctor field of vision, the leaded light beam of its connection also is not convenient for rotate, thereby lead to need fix a position repeatedly in the art, repeated focusing just can observe the meticulous structure of deep portion, the ageing nature of operation has brought very big challenge.

Disclosure of Invention

In order to overcome the defects of the prior art, one of the purposes of the invention is to provide an excitation light source module integrated in the handle, and combine the optical microscope technology and the photoelectric conversion technology to perfectly combine the light source channel and the image channel, so that the whole structure is simpler, the handheld operation and positioning of a doctor are facilitated, a stability guarantee is provided for the doctor to search for a fine focus in the brain of a patient and identify important structures such as nerves, blood vessels, functional areas and the like, and therefore, the doctor can get rid of the limitation of the position of an operation under the traditional microscope, ultra-high-definition image experience is brought, and a high-efficiency and fine operation effect is realized.

One of the purposes of the invention is realized by adopting the following technical scheme:

the utility model provides an integrated leaded light bundle's high resolution endoscope, includes image sensor, handle and leaded light bundle, image sensor and leaded light bundle install in inside the handle, integrated leaded light bundle's high resolution endoscope still includes excitation light source module and imaging module, excitation light source module and imaging module parallel arrangement, image sensor is located imaging module one side is located same straight line, excitation light source module is located inside the handle and with the leaded light bundle is connected, excitation light source module includes reflection assembly, imaging module includes fluorescence subassembly and objective assembly, and the light that the light source sent is through the leaded light bundle gets into excitation light source module, light is through get into perpendicularly behind the reflection assembly reflection imaging module's fluorescence subassembly, the warp fluorescence subassembly handles the back reflex focusing to on the objective assembly image plane, objective assembly will be measured the object and enlarged the formation of image to image sensor.

Further, the distance between the axis of the excitation light source module and the axis of the imaging module is 10-13mm.

Further, the excitation light source module comprises a light source sleeve, an optical fiber interface and a light source rod mirror group, the optical fiber interface and the light source rod mirror group are arranged inside the light source sleeve, and the optical fiber interface is connected with the light guide beam.

Furthermore, the reflection assembly is installed at the end of the light source sleeve, the light source rod mirror group is located between the reflection assembly and the optical fiber interface, the reflection assembly comprises a reflection mirror and a mirror base, the mirror base is connected with the light source sleeve, and the reflection mirror is installed on the mirror base.

Further, the excitation light source module further comprises a switching tube, the switching tube is located between the reflection assembly and the fluorescence assembly, two ends of the switching tube are respectively connected with the reflection assembly and the fluorescence assembly, and the axis of the switching tube is perpendicular to the axis of the imaging module.

Further, the phosphor assembly collimates and filters the light and reflects the light.

Furthermore, the imaging module further comprises a connecting pipe and a rear end rod mirror, the connecting pipe is connected with the fluorescence component, the rear end rod mirror is located in the connecting pipe, and the connecting pipe is located between the fluorescence component and the image sensor.

Further, the imaging module still includes magnifying glass subassembly, magnifying glass subassembly install in the connecting tube, magnifying glass subassembly is located between rear end rod mirror and the image sensor.

Further, the imaging module still includes the protection subassembly, the protection subassembly includes screening glass and mount pad, the mount pad install in connecting pipe tip, the screening glass install in the mount pad, the screening glass is located image sensor one side.

Further, the imaging module comprises a sheath and a rod lens assembly, the rod lens assembly is mounted on the sheath, and the rod lens assembly is located between the objective lens assembly and the fluorescence assembly.

Compared with the prior art, the high-resolution endoscope integrated with the light guide beam and the image sensor of the high-resolution endoscope integrated with the light guide beam are arranged inside the handle, the high-resolution endoscope integrated with the light guide beam further comprises an excitation light source module and an imaging module, the excitation light source module and the imaging module are arranged in parallel, the image sensor is positioned on one side of the imaging module and positioned on the same straight line, the excitation light source module is positioned inside the handle and connected with the light guide beam, the excitation light source module comprises a reflecting assembly, the imaging module comprises a fluorescent assembly and an objective assembly, light emitted by a light source enters the excitation light source module through the light guide beam, the light vertically enters the fluorescent assembly of the imaging module after being reflected by the reflecting assembly, and is reflected and focused on an image surface of the objective assembly after being processed by the fluorescent assembly, the objective assembly magnifies and images a measured object to the image sensor, and by the design, the pupil is conjugated with the optical fiber, and the incident numerical aperture of the optical fiber can be controlled, so that the distance between the axis of the excitation light source module and the axis of the imaging module is reduced, the light guide beam can be integrated in the handle, and an originally heavy light guide beam cable is introduced to the tail of the handle from the side surface of the endoscope, so that the whole endoscopic microscope system has a compact and light structure, is convenient for a doctor to carry out handheld operation and positioning, provides stability guarantee for the doctor to find fine focuses in the brain of a patient, and identify important structures such as nerves, blood vessels, functional zones and the like, so that the doctor can get rid of the limitation of the operation body position under the traditional microscope, bring ultra-high-definition image experience, and realize high-efficiency and fine operation effect; the control accuracy, stability and comfort of the submicron resolution endoscopic microscope are guaranteed.

Drawings

FIG. 1 is a perspective view of a light guide bundle integrated high resolution endoscope of the present invention;

FIG. 2 is a schematic view of the internal structure of the light guide bundle integrated high resolution endoscope of FIG. 1;

FIG. 3 is a partial structural sectional view of the light guide bundle integrated high resolution endoscope of FIG. 1;

FIG. 4 is a schematic diagram of a partial structure of the light guide bundle integrated high resolution endoscope of FIG. 3;

FIG. 5 is an optical path diagram of the integrated light guide bundle high resolution endoscope of FIG. 3;

fig. 6 is a view showing effects of the use of the light guide bundle integrated high resolution endoscope of fig. 1.

In the figure: 10. a handle; 11. a front housing; 12. a middle shell; 13. a rear housing; 20. an image sensor; 30. a main control board; 40. guiding a light beam; 50. an excitation light source module; 51. a transfer tube; 52. a reflective component; 520. a mirror; 521. a lens base; 53. a light source rod lens group; 54. a light source sleeve; 55. an optical fiber interface; 60. an imaging module; 61. a protection component; 610. a protective sheet; 611. a mounting seat; 62. an amplifier mirror assembly; 63. a connecting pipe; 64. a rear end rod mirror; 65. pressing a ring; 66. a fluorescent component; 660. a mirror body; 661. a fluorescent module; 67. a rod mirror assembly; 670. a front end rod mirror; 671. a rod lens tube; 68. a sheath; 69. an objective lens assembly; 690. a microscope objective; 691. an objective lens protection sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by the intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 4 illustrate a light-guide-beam-integrated high-resolution endoscope according to the present invention, which includes a handle 10, an image sensor 20, a main control board 30, a light guide beam 40, an excitation light source module 50, and an imaging module 60.

The handle 10 includes a front case 11, a middle case 12, and a rear case 13. The front case 11 and the rear case 13 are connected to front and rear ends of the middle case 12, respectively, and the front case 11, the middle case 12, and the rear case 13 form a hollow structure together.

The image sensor 20 is a CMOS sensor. The image sensor 20 acquires an image of the object to be measured. The image sensor 20 is mounted within the middle housing 12 of the handle 10.

The main control board 30 is installed inside the handle 10, and the main control board 30 is electrically connected to the image sensor 20.

The light guide bundle 40 is mounted inside the handle 10, and the cables of the light guide bundle 40 are located at the rear of the handle.

The excitation light source module 50 is installed inside the handle 10, and the excitation light source module 50 includes an adapter tube 51, a reflection component 52, a light source rod mirror set 53, a light source sleeve 54 and an optical fiber interface 55. The adapter tube 51 is used for connecting the excitation light source module 50 and the imaging module 60. The reflection assembly 52 includes a reflection mirror 520 and a mirror base 521. The mirror 520 is mounted in a mirror base 521. The adapter tube 51 is connected to the lens holder 521. The light source sleeve 54 is connected to the lens base 521, and the light source rod lens group 53 is installed inside the light source sleeve 54. The fiber optic interface 55 is mounted to the end of the light source sleeve 54. The light source rod assembly 53 is disposed between the optical fiber interface 55 and the reflector assembly 52.

The imaging module 60 comprises a protective component 61, a magnifier component 62, a connecting tube 63, a rear end rod lens 64, a pressing ring 65, a fluorescence component 66, a rod lens component 67, a lens sheath 68 and an objective lens component 69. The protective member 61 includes a protective sheet 610 and a mount 611. Protective sheet 610 is attached to mount 611. The mount 611 is mounted to an end of the connection pipe 63. The magnifier assembly 62 and the rear rod mirror 64 are located inside the connecting tube 63. The magnifier assembly 62 is positioned between the rear rod mirror 64 and the protective assembly 61. The magnifying lens assembly 62 magnifies the image of the object to be measured. The pressing ring 65 is attached to the end of the rear end rod mirror 64. The fluorescence assembly 66 includes a mirror 660 and a fluorescence module 661. The fluorescent module 661 is mounted in the mirror 660. The lens body 660 is connected to the pressing ring 65 and the adapter tube 51. The sheath 68 is connected to the scope body 660, and the rod scope assembly 67 is attached to the sheath 68. The rod mirror assembly 67 includes a front end rod mirror 670 and a rod mirror tube 671. The number of the front end rod mirrors 670 is plural, and the plural front end rod mirrors 670 are attached to the rod mirror tube 671. Objective lens assembly 69 includes a microscope objective 690 mounted to rod lens tube 671 and an objective lens protector 691 mounted to the distal end of lens sheath 68. The protective component 61, the magnifying lens component 62, the connecting tube 63, the rear end rod lens 64, the pressing ring 65 and the fluorescence component 66 of the imaging module 60 are mounted inside the handle 10, and the rod lens component 67, the lens sheath 68 and the objective lens component 69 of the imaging module 60 are mounted outside the handle 10.

The imaging module 60 is parallel to the excitation light source module 50, and the distance between the axis of the imaging module 60 and the axis of the excitation light source module 50 is 10-13mm. Specifically, the distance between the axis of the imaging module 60 and the axis of the excitation light source module 50 is 11.5mm.

With continued reference to fig. 5, in the case of a high resolution endoscope with integrated light guide, light from the light source enters the excitation light source module 50 via the light guide 40, passes through the light source rod lens 53 and the reflector 520, and vertically enters the fluorescence assembly 66, and the fluorescence assembly 66 collimates and filters the light, totally reflects the light from the dichroic mirrors, and then focuses the light on the microscope objective 690 of the objective assembly 69 via the rod lens assembly 67. Then the measured object is focused on the measured object through the microscope objective 690, then the measured object is magnified and imaged by the microscope objective 690, and then the image is further filtered by the dichroic mirror and the optical filter in the fluorescence component 66 through the rod lens component 67, and then the image is clearly imaged on the image sensor 20 after further magnified by the rear end rod lens 64 and the magnifier component 62. At this time, the object to be measured can be clearly recorded in real time by the image sensor 20. The endoscopic microscope system adopts the technical means of pupil and optical fiber conjugation and controlling the numerical aperture of the incident optical fiber to reduce the central distance d between the optical axis of the light guide beam 40 and the image transmission image axis to about 11.5mm, thereby providing possibility for integrating the light guide beam 40 in the handle 10.

With reference to fig. 6, fig. 6 is a cell image acquired on a live pig brain by using the high-resolution endoscope integrated with light guide beams according to the present application, wherein brain cell morphological information is clearly displayed on the cell image, and sub-micron resolution capability is achieved.

Based on this, this design is structural at traditional operation microscope, it is inside handle 10 to integrate excitation light source module 50, and fuse optical microscope technique and photoelectric conversion technique with the perfect integration of light source passageway and image passageway together, make whole structure simpler, be convenient for doctor handheld operation and location, look for slight focus in patient's brain to the doctor, recognize important nerve, provide stability guarantee during structures such as blood vessel and functional area, thereby let the doctor can break away from the restriction of operation position under traditional microscope, bring the image experience of superdefinition, realize high-efficient surgical effect that becomes more meticulous.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, and these are all within the scope of the invention.

Claims

1. A high-resolution endoscope integrated with a light guide beam comprises an image sensor, a handle and the light guide beam, and is characterized in that: the utility model discloses a high resolution endoscope of integrated leaded light beam, including handle, image sensor and leaded light beam install in inside the handle, the high resolution endoscope of integrated leaded light beam still includes excitation light source module and imaging module, excitation light source module and imaging module parallel arrangement, image sensor is located imaging module one side is located on the same straight line, excitation light source module be located inside the handle and with the leaded light beam is connected, excitation light source module includes reflection assembly, imaging module includes fluorescence subassembly and objective lens subassembly, and the light that the light source sent is through the leaded light beam gets into excitation light source module, light through get into perpendicularly behind the reflection assembly reflection imaging module's fluorescence subassembly, warp fluorescence subassembly handles back reflection focus extremely on the objective lens subassembly image plane, objective lens subassembly will be measured the object and enlarged the formation of image extremely image sensor.

2. The light bundle integrated high resolution endoscope of claim 1, wherein: the distance between the axis of the excitation light source module and the axis of the imaging module is 10-13mm.

3. The light bundle integrated high resolution endoscope of claim 1, wherein: the excitation light source module comprises a light source sleeve, an optical fiber interface and a light source rod mirror group, the optical fiber interface and the light source rod mirror group are arranged inside the light source sleeve, and the optical fiber interface is connected with the light guide beam.

4. The light bundle integrated high resolution endoscope according to claim 3, wherein: the reflection assembly is installed in light source sleeve tip, light source rod mirror group is located the reflection assembly and between the fiber interface, the reflection assembly includes speculum and mirror seat, the mirror seat with light source muffjoint, the speculum install in the mirror seat.

5. The light bundle integrated high resolution endoscope according to claim 4, wherein: the excitation light source module further comprises an adapter tube, the adapter tube is located between the reflection assembly and the fluorescence assembly, two ends of the adapter tube are connected with the reflection assembly and the fluorescence assembly respectively, and the axis of the adapter tube is perpendicular to the axis of the imaging module.

6. The light bundle integrated high resolution endoscope according to claim 1, wherein: the phosphor assembly collimates and filters the light and reflects the light.

7. The light bundle integrated high resolution endoscope according to claim 1, wherein: the imaging module further comprises a connecting pipe and a rear-end rod mirror, the connecting pipe is connected with the fluorescence component, the rear-end rod mirror is located in the connecting pipe, and the connecting pipe is located between the fluorescence component and the image sensor.

8. The light bundle integrated high resolution endoscope according to claim 7, wherein: the imaging module further comprises an amplifier component, the amplifier component is installed in the connecting pipe, and the amplifier component is located between the rear end rod mirror and the image sensor.

9. The light bundle integrated high resolution endoscope according to claim 8, wherein: the imaging module is still including protecting the subassembly, the protection subassembly includes screening glass and mount pad, the mount pad install in the connecting pipe tip, the screening glass install in the mount pad, the screening glass is located image sensor one side.

10. The light bundle integrated high resolution endoscope according to claim 1, wherein: the imaging module comprises a sheath and a rod mirror assembly, the rod mirror assembly is mounted on the sheath, and the rod mirror assembly is located between the objective lens assembly and the fluorescence assembly.