CN114305301B

CN114305301B - LED medical endoscope fluorescent cold light source

Info

Publication number: CN114305301B
Application number: CN202210224817.1A
Authority: CN
Inventors: 杜荷军; 程达; 孙学战
Original assignee: Hangzhou Kangji Medical Instrument Co Ltd
Current assignee: Hangzhou Kangji Medical Instrument Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-06-17
Anticipated expiration: 2042-03-09
Also published as: CN114305301A

Abstract

The invention provides an LED medical endoscope fluorescence cold light source, which solves the problems that the existing cold light source only meets the output requirement of single wavelength and the like, and comprises a light source host and a light guide beam connected with an endoscope, wherein a white light LED lamp module and a fluorescence LED lamp module are arranged in the light source host, the white light LED lamp module and the fluorescence LED lamp module are opposite to the light guide beam through a dichroic mirror assembly and a focusing lens assembly, and the dichroic mirror assembly is provided with a switching assembly. The invention has the advantages of wide spectrum range, stable operation and the like.

Description

LED medical endoscope fluorescent cold light source

Technical Field

The invention belongs to the technical field of light source devices, and particularly relates to a fluorescent cold light source of an LED medical endoscope.

Background

The medical endoscope is an organic combination of high-tech subjects such as traditional optics, precision manufacturing, image processing, medical materials, opto-electro-mechanical information, bioengineering and the like, and is provided with a COMS image sensor, an optical lens, an illumination light source, an optical interface and the like, the medical endoscope can enter a human body from a cut or other natural pore canals, the illumination light source in the endoscope is a cold light source, the temperature of the medical endoscope is not higher than the ambient temperature when the medical endoscope emits light, and the medical endoscope can effectively avoid the burn of high temperature to the internal tissues of the human body. With the continuous progress of the high-brightness LED technology, the endoscope cold light source taking the high-power LED light-emitting chip as the core in the field of medical endoscope light sources gradually begins to occupy the market which is originally unified by halogen tungsten lamps, hernia lamps and the like. The LED cold light source can effectively overcome the defects of the existing endoscope light sources such as a halogen tungsten lamp, a hernia lamp and the like, and is popular with the majority of users due to the advantages of high brightness, proper color temperature, low heat productivity, long service life and the like. The theoretical life of the technically mature LED cold light source can reach more than 5 ten thousand hours. However, in the actual use process, the existing cold light source only meets the output requirement of light with single wavelength, and cannot meet the use requirement of complex fluorescence imaging. In addition, the existing LED fluorescent light source has the problem of insufficient illumination brightness.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses an LED fluorescence excitation light source system [201210481449.5], which includes a driving power supply, a control system, an LED light source, an optical system and the like, wherein the optical system includes a uniform light coupling system and a light guide medium.

The scheme solves the problem of insufficient brightness of the fluorescent light source to a certain extent, but the scheme still has a plurality of defects, such as inconvenience in adjusting the wavelength of the LED fluorescence and the like.

Disclosure of Invention

The invention aims to solve the problems and provides the LED medical endoscope fluorescent cold light source which is reasonable in design and convenient to adjust light.

In order to achieve the purpose, the invention adopts the following technical scheme: this medical endoscope fluorescence cold light source of LED, including light source host computer and the leaded light beam of being connected with the endoscope, light source host computer inside is provided with white light LED lamp module and fluorescence LED lamp module, and white light LED lamp module and fluorescence LED lamp module pass through dichroic mirror subassembly and focus lens subassembly relative with the leaded light beam, and the dichroic mirror subassembly is equipped with the switching subassembly. The color separation mirror assembly of the light source host can be switched, the white light LED lamp module and the fluorescent LED lamp module are combined, the wavelength range of output spectrum is widened, and the requirement of endoscope imaging is met.

In foretell medical endoscope fluorescence cold light source of LED, the dichroic mirror subassembly includes the vertical colour separation section of thick bamboo of installing between white light LED lamp module and fluorescence LED lamp module, and the colour separation chamber is left to colour separation section of thick bamboo inside, installs a plurality of colour separation lenses in the colour separation section of thick bamboo, switches the subassembly setting between colour separation lens and colour separation section of thick bamboo. The color separation barrel is used for installing a color separation lens and reserving enough space for projection of a light path.

In foretell medical endoscope fluorescence cold light source of LED, the switching module is including fixing the division board in the colour separation section of thick bamboo, and the colour separation chamber is divided into cavity and lower cavity by the division board, and colour separation section of thick bamboo internally mounted has the vertical switching framework of arranging and switches the framework and run through the division board, switches the framework inboard and opens and have a plurality of confession colour separation lens gliding switching grooves from top to bottom, and colour separation section of thick bamboo is equipped with the independent gliding lift drive assembly of drive each colour separation lens and drives colour separation lens circumferential direction's rotation drive assembly. The switching component realizes the up-down lifting and the rotation switching of the color separation lenses, and realizes the switching and the steering of the color separation lenses.

In the LED medical endoscope fluorescent cold light source, the lifting driving component comprises a lifting seat which protrudes outwards relative to the color separation cylinder, a lifting gear is rotatably arranged in the lifting seat, lifting latch which is in meshing transmission with the lifting gear is distributed on the side edge of the color separation lens, the lifting gear is driven by a lifting motor to rotate, an electric push rod is arranged between the lifting seat and the lifting gear, and a clutch component which is linked with the electric push rod is arranged between the lifting latch of the color separation lens and the lifting seat; the clutch assembly comprises clutch stop blocks rotatably arranged on two sides of the lifting gear, a clutch groove and a clutch strip which are connected between the clutch stop blocks and the lifting seat in a sliding mode, and the clutch stop blocks are provided with convex blocks connected with the lifting latch in a clamping mode. The lifting driving component drives the color separation lenses to lift up and down in a gear transmission mode, and the clutch component is arranged to realize independent lifting and non-interference of the color separation lenses which are stacked and arranged in a stacked mode.

In the LED medical endoscope fluorescent cold light source, the rotation driving component comprises an inner barrel body arranged at the inner side of the color separation barrel, rotation clamping teeth are distributed at the outer side of the inner barrel body along the circumferential direction, the rotation clamping teeth are in fit transmission with a rotation gear driven by a rotation motor, and a rotation groove and a rotation block for limiting the circumferential rotation range of the inner barrel body are arranged between the color separation barrel and the inner barrel body; the inner barrel body is divided into an upper barrel body and a lower barrel body, the upper barrel body and the lower barrel body independently rotate relative to the color barrel, the rotating gear is provided with an upper tooth body in meshing transmission with the upper barrel body and a lower tooth body in meshing transmission with the lower barrel body, and a heterodromous rotating assembly is arranged between the upper tooth body and the lower tooth body; the heterodromous runner assembly is including running through down the tooth body and the central pivot of being connected with elevator motor, elevator motor is equipped with the electric putter that drives central pivot oscilaltion, central pivot has the stopper that sets up between last tooth body and the tooth body down, the stopper below is provided with the lower tapered end of fixing with central pivot, lower tapered end descends along with central pivot and locks fixedly with tooth body down, the stopper top is provided with the last tapered end with central pivot endwise slip and circumference spacing, it rises along with central pivot and locks fixedly with last tooth body to go up the tapered end, it compresses tightly the piece to be equipped with elasticity between last tapered end and the stopper. The rotation driving assembly drives the inner barrel to rotate, the upper barrel and the lower barrel rotate independently, dislocation of the upper barrel and the lower barrel is achieved after switching is completed, and locking and fixing of color separation lenses inside the upper barrel and the lower barrel are achieved.

In the LED medical endoscope fluorescent cold light source, the focusing lens assembly comprises a focusing lens body, a telescopic main sleeve is wrapped on the side edge of the focusing lens body, a telescopic auxiliary sleeve is sleeved on the outer side of the telescopic main sleeve, a plurality of pushing arm assemblies which are centrosymmetrically arranged are mounted between the telescopic main sleeve and the outer side of the telescopic auxiliary sleeve, the telescopic main sleeve is provided with a limiting frame body, the telescopic main sleeve axially slides relative to the limiting frame body and is circumferentially fixed, and the telescopic auxiliary sleeve is provided with a telescopic driving motor; the push arm assembly comprises a main arm body rotationally connected with the telescopic auxiliary sleeve and an auxiliary arm body rotationally connected between the main arm body and the telescopic main sleeve; the outer side of the telescopic auxiliary sleeve is circumferentially provided with telescopic threads, and the output end of the telescopic driving motor is in meshing transmission with the telescopic threads. The focusing lens component can telescopically adjust the position of the focusing lens body, so that the focus of the focusing lens body is opposite to the light guide beam, and the imaging effect is ensured.

In the above-mentioned LED medical endoscope fluorescent cold light source, the light source host is installed in the host casing, the host casing is equipped with the operation panel, the control main board and the power module which are connected with the light source host, the inner wall of the host casing is installed with the heat dissipation assembly opposite to the light source host; the main machine shell is provided with a front shell and a rear shell which are connected in a splicing way, the front end of the front shell is of an inclined plane structure and is provided with an operation panel and an optical fiber interface opposite to the light source main machine; the optical fiber interface comprises a socket with a socket, a contact switch is arranged on the inner side of the socket, and a telescopic elastic clamping piece is arranged on the inner side of the socket. The light source host is used for light path control, and the high-efficient heat dissipation of light source host is realized to the radiator unit who is equipped with, guarantees job stabilization nature.

In the above-mentioned medical endoscope fluorescence cold light source of LED, the radiator unit includes fixing the first radiator fan at the host computer casing back, and the laminating of light source host computer lower extreme is installed the heating panel of stack arrangement and is provided with the support screw between the heating panel, and the control mainboard is installed between the heating panel and leaves the clearance, and the heating panel is installed the second radiator fan and the other side is fixed with the heat dissipation muscle relative with the second radiator fan on one side. The first cooling fan and the second cooling fan are matched to respectively cool the inside of the host shell and the light source host, so that the cooling effect is improved.

In the above LED medical endoscope fluorescent cold light source, the white LED lamp module includes a white light source and a first focusing lens group opposite to the white light source, the fluorescent LED lamp module includes a fluorescent light source and a second focusing lens group opposite to the fluorescent light source, the first focusing lens group and the second focusing lens group are opposite to the dichroic mirror assembly, and a light path of the white light source is perpendicular to a light path of the fluorescent light source. The white light LED lamp module is combined with the fluorescent LED lamp module to realize the output of white light, fluorescence and composite light.

In the above-mentioned medical endoscope fluorescence cold light source of LED, the leaded light bundle includes the optic fibre is tied in a bundle, and the optic fibre is tied in a bundle and is overlapped in proper order has stainless steel hose and silica gel outer tube, and leaded light bundle both ends are sealed by income light interface and light-emitting interface respectively. The light guide beam is convenient to clean, disinfect and sterilize, is convenient to reuse, and has high structural strength.

Compared with the prior art, the invention has the advantages that: the switching component of the color separation lens component realizes the conversion of the color separation lens, and the wavelength range of the output spectrum is improved by matching the white light LED lamp module and the fluorescent LED lamp module; the focusing lens component can telescopically adjust the position of the focusing lens body, and can be telescopic through rotary motion, so that the adjusting precision is high; the heat dissipation assembly accelerates the internal heat dissipation of the host shell, and improves the operation stability of the light source host.

Drawings

Fig. 1 is a schematic structural diagram of a light source host according to the present invention.

Fig. 2 is a schematic view of another viewing angle of the light source host according to the present invention.

Fig. 3 is a schematic diagram of the construction of a dichroic mirror assembly of the present invention.

Fig. 4 is a schematic structural view of the anisotropic rotation assembly of the present invention.

Fig. 5 is a schematic structural view of the clutch assembly of the present invention.

Fig. 6 is a schematic structural diagram of the optical fiber interface of the present invention.

Fig. 7 is a schematic diagram of the structure of the focusing lens assembly of the present invention.

Fig. 8 is a schematic diagram of the structure of the optical path of the present invention.

Fig. 9 is a schematic structural view of the main unit case of the present invention.

Fig. 10 is a schematic structural diagram of the heat dissipation assembly of the present invention.

Fig. 11 is another view-angle structure diagram of the main frame casing of the present invention.

Fig. 12 is another perspective structural diagram of the main housing of the present invention.

In the figure, the light source host 1, the white LED lamp module 11, the white light source 111, the first focusing lens group 112, the fluorescent LED lamp module 12, the fluorescent light source 121, the second focusing lens group 122, the host housing 13, the operation panel 14, the control main board 15, the power module 16, the front housing 17, the rear housing 18, the optical fiber interface 19, the socket 191, the contact switch 192, the elastic clamping member 193, the light guide bundle 2, the optical fiber bundle 21, the stainless steel hose 22, the outer silica gel tube 23, the light inlet interface 24, the light outlet interface 25, the dichroic mirror assembly 3, the dichroic cylinder 31, the dichroic lens 32, the focusing lens assembly 4, the focusing lens 41, the telescopic main sleeve 42, the telescopic auxiliary sleeve 43, the push arm assembly 44, the position limiting frame 45, the main arm 46, the auxiliary arm 47, the telescopic screw 48, the switching assembly 5, the partition board 51, the upper cavity 52, the lower cavity 53, the switching frame 54, the switching groove 55, the lifting driving assembly 56, the light source 12, the fluorescent LED lamp module 12, the light source 2, the light source housing 13, the light source, the operating panel, the light source module, the light, The lifting device comprises a lifting seat 57, a lifting gear 58, a lifting latch 59, a rotation driving assembly 6, an inner cylinder 61, a rotation latch 62, a rotation gear 63, a rotation groove 64, a rotation block 65, an upper cylinder 66, a lower cylinder 67, an upper gear 68, a lower gear 69, a counter rotation assembly 7, a central rotating shaft 71, a limiting block 73, a lower lock head 74, an upper lock head 75, an elastic pressing piece 76, a heat dissipation assembly 8, a first heat dissipation fan 81, a heat dissipation plate 82, a support screw 83, a second heat dissipation fan 84, a heat dissipation rib 85, a clutch assembly 9, a clutch stopper 91, a clutch groove 92, a clutch strip 93 and a lug 94.

Detailed Description

As shown in fig. 1 to 12, the LED medical endoscope fluorescent cold light source includes a light source host 1 and a light guide beam 2 connected to an endoscope, a white LED lamp module 11 and a fluorescent LED lamp module 12 are disposed inside the light source host 1, the white LED lamp module 11 and the fluorescent LED lamp module 12 are opposite to the light guide beam 2 through a dichroic mirror assembly 3 and a focusing lens assembly 4, and the dichroic mirror assembly 3 is equipped with a switching assembly 5. White light LED lamp module 11 and fluorescence LED lamp module 12 combination, select white light mode, fluorescence mode and white light fluorescence to merge the mode as required, export light by dichroic mirror subassembly 3 and focusing lens subassembly 4 reflection focus back leading-in leaded light beam 2, switching module 5 that dichroic mirror subassembly 3 was equipped with realizes the switching of dichroic mirror 32 through the lift rotation mode, satisfy the filtering reflection demand of different wavelength light, widened spectral range.

Specifically, dichroic mirror assembly 3 includes a color separation cylinder 31 vertically installed between white LED lamp module 11 and fluorescent LED lamp module 12, a color separation cavity is left inside color separation cylinder 31, a plurality of color separation lenses 32 are installed in color separation cylinder 31, and switching assembly 5 is disposed between color separation lenses 32 and color separation cylinder 31. The color separation tube 31 is cylindrical, and a rotation switching space of the color separation lens 32 is reserved, wherein the color separation lens 32 is arranged in a stacked manner and is relatively independent, and the switching assembly 5 is used for realizing lifting.

Deeply, switching component 5 includes a partition plate 51 fixed in color separation cylinder 31, the color separation chamber is divided into an upper chamber 52 and a lower chamber 53 by partition plate 51, a vertically arranged switching frame 54 is installed inside color separation cylinder 31, switching frame 54 penetrates partition plate 51, a plurality of switching grooves 55 for color separation lenses 32 to slide up and down are opened on the inner side of switching frame 54, color separation cylinder 31 is equipped with a lifting driving component 56 for driving each color separation lens 32 to slide independently and a rotation driving component 6 for driving color separation lenses 32 to rotate circumferentially. The switching component 5 is provided with a single color separation lens 32 in the lower cavity 53 to meet the requirements of filtering and reflection, the partition plate 51 seals the lower cavity 53 to ensure the light path projection effect, and the rotation driving component 6 realizes the rotation dislocation of the upper cavity 52 and the lower cavity 53, thereby realizing the crossing of the color separation lenses 32 arranged on the upper part and avoiding the fixation of the upper color separation lenses 32.

Further, the lifting driving assembly 56 includes a lifting seat 57 protruding outward relative to the color separation drum 31, a lifting gear 58 is rotatably mounted inside the lifting seat 57, lifting latches 59 in meshing transmission with the lifting gear 58 are distributed on the side edge of the color separation lens 32, the lifting gear 58 is driven by a lifting motor to rotate, an electric push rod is arranged between the lifting seat 57 and the lifting gear 58, and a clutch assembly 9 linked with the electric push rod is arranged between the lifting latches 59 of the color separation lens 32 and the lifting seat 57; the clutch assembly 9 comprises clutch blocks 91 rotatably mounted on both sides of the lifting gear 58, a clutch groove 92 and a clutch strip 93 which are slidably connected between the clutch blocks 91 and the lifting seat 57, and the clutch blocks 91 are provided with lugs 94 which are clamped with the lifting latch 59. The lifting gear 58 in the lifting driving assembly 56 rotates to drive the color separation lens 32 to lift, the electric push rod thereof realizes the horizontal sliding switching of the lifting gear 58 in the clutch assembly 9, when one color separation lens 32 is vertically engaged to drive the lifting, the other color separation lenses 32 are locked and fixed by the convex blocks 94.

Furthermore, the rotary driving assembly 6 includes an inner cylinder 61 disposed inside the color separation cylinder 31, a rotary latch 62 is circumferentially distributed outside the inner cylinder 61, the rotary latch 62 is in fitting transmission with a rotary gear 63 driven by a rotary motor, and a rotary groove 64 and a rotary block 65 for limiting the circumferential rotation range of the inner cylinder 61 are disposed between the color separation cylinder 31 and the inner cylinder 61; the inner cylinder 61 is divided into an upper cylinder 66 and a lower cylinder 67, the upper cylinder 66 and the lower cylinder 67 rotate independently relative to the color separation cylinder 31, the rotating gear 63 is provided with an upper gear 68 in meshing transmission with the upper cylinder 66 and a lower gear 69 in meshing transmission with the lower cylinder 67, and a counter-rotating assembly 7 is arranged between the upper gear 68 and the lower gear 69; the counter-rotating assembly 7 comprises a central rotating shaft 71 penetrating through the lower tooth body 69 and connected with a lifting motor, the lifting motor is provided with an electric push rod for driving the central rotating shaft 71 to lift up and down, the central rotating shaft 71 is provided with a limiting block 73 arranged between the upper tooth body 68 and the lower tooth body 69, a lower lock head 74 fixed with the central rotating shaft 71 is arranged below the limiting block 73, the lower lock head 74 descends along with the central rotating shaft 71 and is locked and fixed with the lower tooth body 69, an upper lock head 75 axially sliding and circumferentially limited with the central rotating shaft 71 is arranged above the limiting block 73, the upper lock head 75 ascends along with the central rotating shaft 71 and is locked and fixed with the upper tooth body 68, and an elastic pressing piece 76 is arranged between the upper lock head 75 and the limiting block 73. The upper cylinder 66 and the lower cylinder 67 in the rotary driving assembly 6 rotate independently, the rotation switching is realized by the counter-rotating assembly 7, and when the upper cylinder 66 and the lower cylinder 67 rotate to a specified circumferential relative angle, the superposition of lifting channels is realized.

In addition, the focusing lens assembly 4 comprises a focusing lens body 41, a telescopic main sleeve 42 is wrapped on the side edge of the focusing lens body 41, a telescopic auxiliary sleeve 43 is sleeved on the outer side of the telescopic main sleeve 42, a plurality of pushing arm assemblies 44 which are symmetrically arranged in the center are arranged between the telescopic main sleeve 42 and the outer side of the telescopic auxiliary sleeve 43, the telescopic main sleeve 42 is provided with a limiting frame body 45, the telescopic main sleeve 42 axially slides relative to the limiting frame body 45 and is circumferentially fixed, and the telescopic auxiliary sleeve 43 is provided with a telescopic driving motor; the push arm assembly 44 comprises a main arm body 46 which is rotatably connected with the telescopic auxiliary sleeve 43 and an auxiliary arm body 47 which is rotatably connected between the main arm body 46 and the telescopic main sleeve 42; the outer side of the telescopic auxiliary sleeve 43 is circumferentially provided with telescopic threads 48, and the output end of the telescopic driving motor is in meshed transmission with the telescopic threads 48. The telescopic auxiliary sleeve 43 in the focusing lens assembly 4 rotates to drive the main arm body 46 and the auxiliary arm body 47 which are arranged in a folded mode to unfold, so that the telescopic main sleeve 42 and the telescopic auxiliary sleeve 43 axially extend and retract, the position of the focusing lens body 41 is adjusted, and accurate focus control is achieved.

Meanwhile, the light source host 1 is installed in a host shell 13, the host shell 13 is provided with an operation panel 14, a control mainboard 15 and a power module 16 which are connected with the light source host 1, and the inner wall of the host shell 13 is provided with a heat radiation component 8 which is opposite to the light source host 1; the main machine shell 13 is provided with a front shell 17 and a rear shell 18 which are connected in a split mode, the front end of the front shell 17 is of an inclined plane structure, and an operation panel 14 and an optical fiber interface 19 opposite to the light source main machine 1 are installed on the front end of the front shell; the optical fiber interface 19 comprises a socket 191 with a socket, a contact switch 192 is arranged on the inner side of the socket, and a telescopic elastic clamping piece 193 is arranged on the inner side of the socket. The light source host 1 is controlled by the control mainboard 15 to realize the switching component 5 and the white light LED lamp module 11 and the fluorescent LED lamp module 12, the operation panel 14 provides an operation interface, the optical fiber interface 19 is used for the insertion of the light guide beam 2 and is locked by the elastic clamping piece 193, and the equipped contact switch 192 senses the state of the socket 191 to avoid light leakage when the light guide beam 2 is not inserted.

Visibly, the heat dissipation assembly 8 includes a first heat dissipation fan 81 fixed at the back of the host housing 13, the lower end of the light source host 1 is attached with heat dissipation plates 82 arranged in an overlapping manner, support screws 83 are arranged between the heat dissipation plates 82, the control main board 15 is installed between the heat dissipation plates 82 with gaps, one surface of the heat dissipation plate 82 is provided with a second heat dissipation fan 84, and the other surface of the heat dissipation plate 82 is fixed with heat dissipation ribs 85 opposite to the second heat dissipation fan 84. The first heat dissipation fan 81 and the second heat dissipation fan 84 in the heat dissipation assembly 8 are synchronously started to accelerate the air flow inside the host housing 13, and the heat dissipation plate 82 and the heat dissipation ribs 85 are provided to perform a certain heat dissipation function on the control motherboard 15.

It is obvious that the white LED lamp module 11 includes a white light source 111 and a first focusing lens set 112 opposite to the white light source 111, the fluorescent LED lamp module 12 includes a fluorescent light source 121 and a second focusing lens set 122 opposite to the fluorescent light source 121, the first focusing lens set 112 and the second focusing lens set 122 are opposite to the dichroic mirror assembly 3, and the light path of the white light source 111 is perpendicular to the light path of the fluorescent light source 121. The first converging lens group 112 and the second converging lens group 122 respectively focus the white light and the fluorescent light and project the white light and the fluorescent light to the dichroic mirror assembly 3, the fluorescent light is reflected by the dichroic mirror assembly 3 and then is combined with the white light passing through the dichroic mirror assembly 3 to form a composite light, and the composite light is emitted through the focusing lens assembly 4, so that the wavelength range of the output spectrum is widened on the basis of not damaging the performance of the white light.

Preferably, the light guide bundle 2 includes an optical fiber bundle 21, the optical fiber bundle 21 is sequentially sleeved with a stainless steel hose 22 and a silica gel outer tube 23, and two ends of the light guide bundle 2 are respectively sealed by an incident interface 24 and an emergent interface 25. The optical fiber bundle 21 of the light guide bundle 2 is coated by a stainless steel hose 22 and a silica gel outer tube 23, has high structural strength, and is provided with corresponding plugs at two ends respectively for connecting an endoscope and the light source host 1.

In summary, the principle of the present embodiment is: the white light LED lamp module 11 and the fluorescent LED lamp module 12 in the light source host 1 are matched to meet the output requirements of white light, fluorescence and composite light, wherein the dichroic mirror assembly 3 between the white light LED lamp module 11 and the fluorescent LED lamp module 12 can realize the switching of the dichroic mirror 32, so that the expansion of the spectrum range is realized.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the light source host 1, the white LED lamp module 11, the white light source 111, the first focusing lens group 112, the fluorescent LED lamp module 12, the fluorescent light source 121, the second focusing lens group 122, the host housing 13, the operation panel 14, the control main board 15, the power module 16, the front housing 17, the rear housing 18, the optical fiber interface 19, the socket 191, the contact switch 192, the elastic clip member 193, the light guide bundle 2, the optical fiber bundle 21, the stainless steel hose 22, the outer silica gel tube 23, the light inlet interface 24, the light outlet interface 25, the dichroic mirror assembly 3, the dichroic cylinder 31, the dichroic mirror 32, the focusing lens assembly 4, the focusing lens body 41, the telescopic main sleeve 42, the telescopic auxiliary sleeve 43, the arm pushing assembly 44, the position limiting frame body 45, the main arm body 46, the auxiliary arm body 47, the telescopic threads 48, the switching assembly 5, the partition plate 51, the upper cavity 52, the lower cavity 53, the switching frame body 54, the switching groove 55, the switch assembly, and the switch assembly, The lifting driving assembly 56, the lifting seat 57, the lifting gear 58, the lifting latch 59, the rotation driving assembly 6, the inner cylinder 61, the rotation latch 62, the rotation gear 63, the rotation slot 64, the rotation block 65, the upper cylinder 66, the lower cylinder 67, the upper gear 68, the lower gear 69, the counter rotation assembly 7, the central rotation shaft 71, the limit block 73, the lower lock head 74, the upper lock head 75, the elastic pressing member 76, the heat dissipation assembly 8, the first heat dissipation fan 81, the heat dissipation plate 82, the support screw 83, the second heat dissipation fan 84, the heat dissipation rib 85, the clutch assembly 9, the clutch stopper 91, the clutch slot 92, the clutch bar 93, the bump 94 and other terms are not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. An LED medical endoscope fluorescence cold light source comprises a light source host (1) and a light guide beam (2) connected with an endoscope, wherein a white LED lamp module (11) and a fluorescence LED lamp module (12) are arranged inside the light source host (1), the white LED lamp module (11) and the fluorescence LED lamp module (12) are opposite to the light guide beam (2) through a dichroic mirror component (3) and a focusing lens component (4), and the LED medical endoscope fluorescence cold light source is characterized in that the dichroic mirror component (3) is provided with a switching component (5); the color separation mirror assembly (3) comprises a color separation barrel (31) vertically installed between a white light LED lamp module (11) and a fluorescent LED lamp module (12), a color separation cavity is reserved inside the color separation barrel (31), a plurality of color separation lenses (32) are installed in the color separation barrel (31), and the switching assembly (5) is arranged between the color separation lenses (32) and the color separation barrel (31); switching module (5) including fixing division board (51) in colour separation section of thick bamboo (31), the colour separation chamber divide into cavity (52) and lower cavity (53) by division board (51), colour separation section of thick bamboo (31) internally mounted have vertical switching framework (54) of arranging just switching framework (54) run through division board (51), switching framework (54) inboard open and have a plurality of confession colour separation lens (32) gliding switching groove (55) from top to bottom, colour separation section of thick bamboo (31) be equipped with drive each colour separation lens (32) independent gliding lift drive assembly (56) and drive colour separation lens (32) circumferential direction's rotation drive assembly (6).

2. The LED medical endoscope fluorescent cold light source as claimed in claim 1, wherein the lifting driving assembly (56) comprises a lifting seat (57) protruding outward relative to the dichroic filter (31), a lifting gear (58) is rotatably mounted inside the lifting seat (57), lifting latches (59) in meshing transmission with the lifting gear (58) are distributed on the side edge of the dichroic filter (32), the lifting gear (58) is driven to rotate by a lifting motor, an electric push rod is arranged between the lifting seat (57) and the lifting gear (58), and a clutch assembly (9) linked with the electric push rod is arranged between the lifting latches (59) and the lifting seat (57) of the dichroic filter (32); clutch module (9) including rotate and install clutch block (91) in lifting gear (58) both sides, clutch block (91) and lift seat (57) between sliding connection's clutch groove (92) and separation and reunion strip (93), clutch block (91) have with lug (94) of lift latch (59) joint.

3. The LED medical endoscope fluorescence cold light source as claimed in claim 2, wherein the rotary driving assembly (6) comprises an inner cylinder (61) arranged inside the color separation cylinder (31), rotary latch teeth (62) are circumferentially distributed on the outer side of the inner cylinder (61), the rotary latch teeth (62) are in meshing transmission with a rotary gear (63) driven by a rotary motor, and a rotary groove (64) and a rotary block (65) for limiting the circumferential rotation range of the inner cylinder (61) are arranged between the color separation cylinder (31) and the inner cylinder (61); the inner cylinder body (61) is divided into an upper cylinder body (66) and a lower cylinder body (67), the upper cylinder body (66) and the lower cylinder body (67) rotate independently relative to the color cylinder (31), the rotating gear (63) is provided with an upper tooth body (68) in meshing transmission with the upper cylinder body (66) and a lower tooth body (69) in meshing transmission with the lower cylinder body (67), and a counter rotating assembly (7) is arranged between the upper tooth body (68) and the lower tooth body (69); the heterodromous rotating component (7) comprises a central rotating shaft (71) which penetrates through the lower tooth body (69) and is connected with the lifting motor, the lifting motor is provided with an electric push rod which drives the central rotating shaft (71) to lift up and down, the central rotating shaft (71) is provided with a limited block (73) arranged between the upper tooth body (68) and the lower tooth body (69), a lower lock head (74) fixed with the central rotating shaft (71) is arranged below the limiting block (73), the lower lock head (74) descends along with the central rotating shaft (71) and is locked and fixed with the lower tooth body (69), an upper lock head (75) which axially slides with the central rotating shaft (71) to limit in the circumferential direction is arranged above the limiting block (73), the upper lock head (75) rises along with the central rotating shaft (71) and is locked and fixed with the upper tooth body (68), an elastic pressing piece (76) is arranged between the upper lock head (75) and the limiting block (73).

4. The LED medical endoscope fluorescence cold light source according to claim 1, characterized in that the focusing lens assembly (4) comprises a focusing lens body (41), a telescopic main sleeve (42) is wrapped on the side of the focusing lens body (41), a telescopic auxiliary sleeve (43) is sleeved on the outer side of the telescopic main sleeve (42), a plurality of pushing arm assemblies (44) which are symmetrically arranged in the center are installed between the outer sides of the telescopic main sleeve (42) and the telescopic auxiliary sleeve (43), the telescopic main sleeve (42) is provided with a limit frame body (45), the telescopic main sleeve (42) axially slides relative to the limit frame body (45) and is circumferentially fixed, and the telescopic auxiliary sleeve (43) is provided with a telescopic driving motor; the push arm assembly (44) comprises a main arm body (46) rotatably connected with the telescopic auxiliary sleeve (43) and an auxiliary arm body (47) rotatably connected between the main arm body (46) and the telescopic main sleeve (42); the outer side of the telescopic auxiliary sleeve (43) is provided with telescopic threads (48) along the circumferential direction, and the output end of the telescopic driving motor is in meshing transmission with the telescopic threads (48).

5. The LED medical endoscope fluorescent cold light source according to claim 1, characterized in that the light source main unit (1) is installed in a main unit housing (13), the main unit housing (13) is provided with an operation panel (14) connected with the light source main unit (1), a control main board (15) and a power module (16), and a heat dissipation assembly (8) opposite to the light source main unit (1) is installed on the inner wall of the main unit housing (13); the main machine shell (13) is provided with a front shell (17) and a rear shell (18) which are connected in a split mode, the front end of the front shell (17) is of an inclined surface structure, and an operation panel (14) and an optical fiber interface (19) opposite to the light source main machine (1) are installed on the front end of the front shell; the optical fiber interface (19) comprises a socket (191) with a socket, a contact switch (192) is arranged on the inner side of the socket, and a telescopic elastic clamping piece (193) is arranged on the inner side of the socket.

6. The LED medical endoscope fluorescence cold light source as claimed in claim 5, wherein the heat dissipation assembly (8) comprises a first heat dissipation fan (81) fixed on the back of the main machine shell (13), the lower end of the light source main machine (1) is provided with heat dissipation plates (82) which are arranged in an overlapping mode in a fitting mode, supporting screws (83) are arranged between the heat dissipation plates (82), the control main board (15) is installed between the heat dissipation plates (82) and is provided with gaps, one surface of each heat dissipation plate (82) is provided with a second heat dissipation fan (84), and the other surface of each heat dissipation plate (82) is fixed with a heat dissipation rib (85) opposite to the second heat dissipation fan (84).

7. The LED medical endoscope fluorescent cold light source as claimed in claim 1, wherein the white LED lamp module (11) comprises a white light source (111) and a first focusing lens set (112) opposite to the white light source (111), the fluorescent LED lamp module (12) comprises a fluorescent light source (121) and a second focusing lens set (122) opposite to the fluorescent light source (121), the first focusing lens set (112) and the second focusing lens set (122) are opposite to the color separation lens assembly (3), and the light path of the white light source (111) is perpendicular to the light path of the fluorescent light source (121).

8. The LED medical endoscope fluorescent cold light source as claimed in claim 1, wherein the light guide bundle (2) comprises an optical fiber bundle (21), the optical fiber bundle (21) is sequentially sleeved with a stainless steel hose (22) and a silica gel outer tube (23), and two ends of the light guide bundle (2) are respectively sealed by a light inlet interface (24) and a light outlet interface (25).