CN115191910A

CN115191910A - Optical hard tube endoscope

Info

Publication number: CN115191910A
Application number: CN202210543377.6A
Authority: CN
Inventors: 蒋艳荣; 朱能革
Original assignee: Shenzhen Yingshu Life Technology Co ltd
Current assignee: Hangzhou Yingshu Life Technology Co.,Ltd.
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-18
Also published as: WO2023221662A1

Abstract

The invention is suitable for the technical field of endoscopes, and provides an optical hard tube endoscope which comprises a main body and an endoscope tube, wherein a rod lens assembly, an objective lens assembly and a front protection sheet are sequentially arranged in the endoscope tube along the axial direction, an eyepiece assembly is further arranged in the main body, the rod lens assembly, the objective lens assembly and a lead are coaxially arranged to form an imaging system, the optical hard tube endoscope also comprises an illumination system, the illumination system comprises an LED lamp, a power supply assembly and a lead, the lead is respectively and electrically connected with the LED lamp and the power supply assembly, the LED lamp is hermetically arranged at the front end of the endoscope tube, and the power supply assembly is arranged in the main body.

Description

Optical hard tube endoscope

Technical Field

The invention belongs to the technical field of endoscopes, and particularly relates to an optical hard tube endoscope.

Background

With the development of medical technology level, minimally invasive surgery is also developed vigorously, and through the minimally invasive surgery, the medical purpose of the traditional open surgery can be achieved with less medical trauma cost, the pain of a patient can be reduced, and the recovery of the patient is accelerated. The optical hard tube endoscope is a core instrument for minimally invasive surgery, and is used for transmitting light rays of an external light source into a cavity of a patient, reflecting the light rays by the surface of an internal organ of a human body, and imaging the light rays by an optical device for an operator to observe.

As the hard tube endoscope belongs to optical imaging, the internal imaging system consists of a series of precise optical lenses, and the illuminating system consists of a series of superfine optical fibers made of glass or quartz and the like, the optical fibers play a role in transmitting light. In practical use, a light guide beam capable of guiding light is used for transmitting light emitted from the light source generating device to a light cone on the hard tube endoscope, and then the light is emitted from the front end of the hard tube endoscope through the internal optical fiber wire, so that the aim of illuminating the cavity of a patient is fulfilled. Because the assembly process of the optical fiber wire is complex, the complex procedures of beam threading, gluing and curing, end face grinding and the like are generally required, so that the production and manufacturing cost of the hard tube endoscope is high, and the production efficiency is low. In addition, when the user uses the device, the light source generating device must be additionally equipped, which causes inconvenience in use.

Disclosure of Invention

The invention aims to provide an optical hard tube endoscope, which is used for solving the problems of high production cost and low production efficiency of an illumination system of the hard tube endoscope in the prior art and the problem of inconvenience caused by the need of additionally arranging a light source generating device.

The utility model provides an optics hard tube endoscope, includes to constitute main part and mirror tube by two half shells, the one end of mirror tube set firmly in the main part, the other end of mirror tube extends to wear out outside the main part, the mirror tube comprises interior mirror tube and outer mirror tube, outer mirror tube with leave the space between the interior mirror tube, intraductal rod mirror subassembly, objective assembly and the preceding screening glass of being equipped with in proper order of scope, still be equipped with the objective assembly in the main part, the objective assembly rod mirror subassembly with the coaxial setting of objective assembly constitutes imaging system jointly, still includes lighting system, lighting system includes LED lamp, power supply module and wears to locate wire in the space, the wire respectively with the LED lamp with power supply module electricity is connected, the LED lamp is sealed to be located the front end in space, power supply module locates in the main part.

Further, the power supply assembly comprises a lithium battery and a control circuit board thereof.

Further, one side of the main body protrudes outwards to form an accommodating cavity for accommodating the power supply assembly, and the control circuit board is placed at the bottom of the accommodating cavity.

And further, a switch button is arranged at the bottom of the accommodating cavity and is abutted against a switch key on the control circuit board.

Further, the objective lens assembly comprises a first objective lens and a second objective lens, and a space ring is arranged between the first objective lens and the second objective lens.

Furthermore, the rod mirror assembly comprises a plurality of rod mirrors arranged at intervals along the axial direction of the inner mirror tube, and rod mirror pressure rings for fixing the rod mirrors are arranged at the rear ends of the mirror tubes.

Further, eyepiece subassembly includes the eyepiece pipe and locates the eyepiece of eyepiece pipe rear end, the eyepiece pipe with rod mirror clamping ring passes through spring coaxial coupling.

Further, establish including the cover still including the eyepiece fixes the ring outside the eyepiece pipe, the eyepiece fix the ring with be connected with the screw between the eyepiece pipe, when the screw loosens, thereby the eyepiece pipe can be followed axial displacement and changed the eyepiece with distance between the rod mirror.

Further, the main part is close to the one end of eyepiece is equipped with the eyepiece cover, the eyepiece covers and inlays and is equipped with the rear protection piece, the eyepiece covers and still is equipped with the connecting seat of connecting outside camera device.

Furthermore, a head end cap is arranged at the front end of the mirror tube.

The invention has the beneficial effects that: the endoscope has the advantages of reasonable structural design and convenient installation, and compared with the traditional optical hard tube endoscope, the endoscope cancels the traditional optical illumination method, adopts the LED lamp for illumination, replaces the traditional light guide wire physical light transmission scheme, is simple to assemble, and improves the illumination efficiency. In addition, the doctor does not need to be connected with other light source generating devices during use, and the operation convenience of the user is greatly improved.

The lighting structure of the invention can simplify the production flow, reduce the assembly difficulty and improve the production efficiency, thereby reducing the production and manufacturing cost, enabling the disposable popularization of the optical hard tube endoscope, in particular to a series of optical hard tube endoscopes with smaller diameter specifications, such as arthroscopes, hysteroscopes, otorhinolaryngoscopes, colposcopes and the like, and greatly reducing the risk of cross infection of patients.

Drawings

FIG. 1 is a side sectional view of a rigid-tube optical endoscope provided by an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure of the front end of the endoscope tube of the rigid optical endoscope provided by the embodiment of the invention;

fig. 3 is an enlarged view of the main structure of the rigid optical endoscope provided by the embodiment of the present invention.

Wherein, 1, the main body; 2. a lens tube; 3. an LED lamp; 4. a first objective lens; 5. a second objective lens; 6. a space ring; 7. a front protective sheet; 8. a rod mirror; 9. an eyepiece tube; 10. an eyepiece; 11. an eyepiece fixing ring; 12. a rod mirror compression ring; 13. a lens tube fixing ring; 14. fixing a sleeve; 15. an eyepiece cover; 16. a rear protective sheet; 17. a connecting seat; 18. a lithium battery; 19. a control circuit board; 20. a switch button; 21. a front end cap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description of specific implementations of the invention is provided in conjunction with specific embodiments:

example (b):

fig. 1 to 3 show a rigid tube optical endoscope provided by an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

the invention provides a hard tube optical endoscope, which comprises a main body 1 and a lens tube 2 consisting of two half shells, wherein one end of the lens tube 2 is fixedly arranged in the main body 1, the other end of the lens tube 2 extends out of the main body 1, the lens tube 2 consists of an inner lens tube and an outer lens tube, a gap is reserved between the outer lens tube and the inner lens tube, a rod lens component, an objective lens component and a front protection plate 7 are sequentially arranged in the inner lens tube along the axial direction, an eyepiece component is also arranged in the main body 1, the eyepiece component, the rod lens component and the objective lens component are coaxially arranged and jointly form an imaging system, the hard tube optical endoscope also comprises an illumination system, the illumination system comprises an LED lamp 3, a power supply component and a conducting wire which is arranged in the gap in a penetrating mode, the conducting wire is respectively and electrically connected with the LED lamp 3 and the power supply component, the LED lamp 3 is sealed at the front end of the gap, and the power supply component is arranged in the main body 1.

In the embodiment of the invention, a lens tube fixing ring for fixing the lens tube 2 is arranged in the main body 1.

Further, the power supply assembly includes a lithium battery 18 and its control circuit board 19.

Further, one side of the main body 1 protrudes outward to form an accommodating chamber for accommodating the power supply module, and the control circuit board 19 is placed at the bottom of the accommodating chamber.

Furthermore, the bottom of the containing cavity is provided with a switch button 20, and the switch button 20 is abutted with a switch key on the control circuit board 19.

Further, the objective lens assembly comprises a first objective lens 4 and a second objective lens 5, and a space ring 6 is arranged between the first objective lens 4 and the second objective lens 5.

Further, the rod mirror assembly comprises a plurality of rod mirrors 8 which are arranged along the axial direction of the inner mirror tube at intervals, and a rod mirror pressing ring 12 for fixing the rod mirrors 8 is arranged at the rear end of the mirror tube 2.

Further, the eyepiece assembly comprises an eyepiece tube 9 and an eyepiece arranged at the rear end of the eyepiece tube 9, and the eyepiece tube 9 is coaxially connected with the rod lens compression ring 12 through a spring.

Further, the novel telescopic eyepiece sleeve is characterized by further comprising an eyepiece fixing ring 11 sleeved on the outer side of the eyepiece tube 9, a screw is connected between the eyepiece fixing ring 11 and the eyepiece tube 9, and when the screw is loosened, the eyepiece tube 9 can move axially to change the distance between the eyepiece 10 and the rod lens 8.

In the embodiment of the invention, a fixing sleeve 14 is axially arranged in the main body 1, and the lens tube 2 and the eyepiece tube 9 are sleeved in the fixing sleeve 14.

Furthermore, an eyepiece cover 15 is arranged at one end of the main body 1 close to the eyepiece, a rear protection sheet 16 is embedded on the eyepiece cover 15, and a connecting seat 17 connected with an external camera device is further arranged on the eyepiece cover 15.

Further, a head end cap 21 is provided on the front end of the lens tube 2.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an optics hard tube endoscope, its characterized in that includes main part and the mirror tube of compriseing two half shells, the one end of mirror tube set firmly in the main part, the other end of mirror tube extends to wear out outside the main part, the mirror tube comprises interior mirror tube and outer mirror tube, outer mirror tube with leave the space between the interior mirror tube, intraductal rod mirror subassembly, objective lens subassembly and the preceding screening glass of being equipped with in proper order of interior mirror along the axial, still be equipped with eyepiece assembly in the main part, eyepiece assembly rod mirror subassembly with coaxial setting of objective lens subassembly constitutes imaging system jointly, still includes lighting system, lighting system includes LED lamp, power supply module and wears to locate wire in the space, the wire respectively with the LED lamp with power supply module electricity is connected, the LED lamp is sealed to be located the front end in space, power supply module locates in the main part.

2. The optical hard tube endoscope as defined in claim 1, wherein the power supply assembly comprises a lithium battery and its control circuit board.

3. The optical hard tube endoscope as defined in claim 2, wherein one side of the main body protrudes outward to form an accommodating cavity for accommodating the power supply module, and the control circuit board is placed at the bottom of the accommodating cavity.

4. The optical hard tube endoscope as defined in claim 3, further comprising a switch button disposed at the bottom of the accommodating cavity, wherein the switch button abuts against a switch button on the control circuit board.

5. The optical rigid tube endoscope as recited in any of claims 1-4, wherein the objective lens assembly comprises a first objective lens and a second objective lens, and a spacer is arranged between the first objective lens and the second objective lens.

6. The optical hard tube endoscope as set forth in any one of claims 1-4, wherein the rod lens assembly comprises a plurality of rod lenses arranged at intervals along the axial direction of the inner lens tube, and a rod lens pressing ring for fixing the rod lenses is provided at the rear end of the lens tube.

7. The optical hard tube endoscope as defined in claim 6, wherein the eyepiece assembly comprises an eyepiece tube and an eyepiece arranged at the rear end of the eyepiece tube, and the eyepiece tube is coaxially connected with the rod lens compression ring through a spring.

8. The optical hard tube endoscope as recited in claim 7, further comprising an eyepiece fixing ring sleeved outside the eyepiece tube, wherein a screw is connected between the eyepiece fixing ring and the eyepiece tube, and when the screw is loosened, the eyepiece tube can move axially to change the distance between the eyepiece and the rod lens.

9. The optical hard tube endoscope as defined in claim 8, wherein an eyepiece cover is provided at one end of the main body close to the eyepiece, a rear protection plate is embedded in the eyepiece cover, and a connecting seat for connecting an external image pickup device is further provided on the eyepiece cover.

10. The optical hard tube endoscope as defined in claim 1, wherein a head end cap is provided on the front end of the tube.