A kind of medical endoscope checks lighting deviceTechnical field
The present invention relates to a kind of inspection lighting device, be specifically related to a kind of medical endoscope and check lighting device, belong to technical field of medical equipment.
Background technology
Medical endoscope checks that lighting device is a kind of Medical Devices commonly used in modern medical service mechanism, is mainly used in the medical endoscope such as arthroscope, laparoscope and performs the operation and some daily audit programs at clinical Minimally Invasive Surgery or some ophthalmic medical.
Along with the development of medical optical instrument and universal, the particularly extensive use of the medical endoscope such as arthroscope, laparoscope in clinical Minimally Invasive Surgery, to the quantity of Medical Cold Light Source and characteristic requirements more and more higher.The basic function of Medical Cold Light Source produces cold light, can, for adopting the various endoscopes of optical fibre light guide as light source, provide brightness to throw light on for carrying out inner chamber O&E.Medical light source not only will have enough luminous fluxes, high color temperature, and wants reliable operation, use safety.The halogen tungsten lamp light efficiency of early application and colour temperature lower, color reductibility is poor, although can reach high color temperature at present, owing to self being gas-discharge lamp, the life-span is short.
Need to throw light on to local location in ophthalmic medical surgical procedure, the light that the lighting system of prior art normally utilizes optical fiber to be sent by high power light source is introduced into needs the position of illumination to throw light on, the equipment connection that this mode uses is complicated, volume is large, operation inconvenience, and equipment is relatively costly.People are more prone to utilize portable lighting apparatus to throw light on, the fine illuminating lamp of a kind of LED light of similar lighting apparatus structure as disclosed in Chinese invention patent CN200820046975.8, comprise light cylindrical shell, and the driver LED light source be positioned in light cylindrical shell and radiator, also comprise optical fiber and be placed in the condenser system in light cylindrical shell, LED light source is arranged on the light path input of condenser system, optical fiber is arranged on the light path output of condenser system, this structure is applicable to general Portable LED optical fibre illumination equipment, in surgical procedure, use light intensity and version to be also not exclusively suitable for.
Sum up above-mentioned situation, the medical endoscope of Present Domestic checks that lighting device mainly has the following disadvantages: 1, luminous flux is not enough, and color reductibility is poor; 2, poor radiation, equipment connection complexity, volume is large and operation is inconvenient; 3, fixed form is single, narrow application range.Thus, need sufficient, the light medical endoscope simple and applied widely of a kind of luminous flux badly and check lighting device.
Summary of the invention
For prior art above shortcomings, the present invention proposes a kind of medical endoscope and checks lighting device, and it comprises lighting unit, transfer tube and fixed cell, and described lighting unit comprises light path output, path channels and LED light source further; Light path output, path channels and LED light source are connected successively and are connected with fixed cell by transfer tube, and fixed cell comprises consumer unit, sucker and bolt fastening structure further, and sucker and bolt fastening structure are arranged on consumer unit both sides respectively.Relative to prior art, the invention has the beneficial effects as follows: a kind of medical endoscope provided by the present invention checks the mode that lighting device adopts the first light guide section and the second light guide section to match, light is transferred to optical fiber effectively, provides enough luminous fluxes for medical treatment uses; Whole inspecting lamp simplicity of design is light, and therefore, application prospect is very wide.
The present invention solves its technical problem, the technical scheme adopted is: a kind of medical endoscope checks lighting device, comprise lighting unit, transfer tube and fixed cell, lighting unit comprises light path output, path channels and LED light source further, light path output, path channels and LED light source are connected successively and are connected with fixed cell by transfer tube, fixed cell comprises consumer unit, sucker and bolt fastening structure further, and sucker and bolt fastening structure are arranged on consumer unit both sides respectively; Path channels comprises the first light guide section, the second light guide section and shell further, and the first light guide section and the second light guide section are separately positioned on outer casing inner wall both sides.
Preferably, described first light guide section is arranged near light path output side, second light guide section is arranged near LED light source side, described first light guide section and the second light guide section are at least one rhombus bar, the radian of rhombus bar near LED light source side of the first light guide section is greater than the radian near light path output side, and consistent and its radian of the rhombus bar both sides radian of the second light guide section is less than the radian of the first light guide section either side.
Further, in consumer unit, be provided with high frequency switch power, described high frequency switch power is the high frequency switch power of PWM formula pulse width modulation, and described high frequency switch power is connected with LED light source by the cable arranged in transfer tube.
Preferred, the height of described first light guide section rhombus bar and width successively decrease to light path output side by near LED light source side.
Preferred, height and the width of described second light guide section rhombus bar are consistent.
Preferred, the width of described first light guide section rhombus bar is not less than the width of the second light guide section rhombus bar.
Preferred, first light guide section and the second light guide section are respectively four rhombus bars and three rhombus bars, the radian of rhombus bar near LED light source side of the first light guide section is greater than the radian near light path output side, and the rhombus bar both sides radian of the second light guide section is 2 π.
Preferably, described shell is the gradual cylinder of an edge circular arc, and the cross section of shell near LED light source side is greater than the cross section near light path output side.
Preferred, described outer casing inner wall is provided with reflector layer.
Light is after LED light source enters path channels, first by the first light guide section, diffuse reflection is carried out to incident light line, second light guide section carries out guiding reflection to the light after diffuse reflection again, and the light ensuring sufficient intensity can enter into light path output, thus ensure that enough luminous fluxes.
Preferably, described light path output comprises optical fiber, sleeve and condenser lens further, and optical fiber and sleeve are hollow cylinder, optical fiber diameter be less than the diameter of sleeve, optical fiber is fixedly connected with by screw with sleeve, and condenser lens to be arranged within sleeve and to be connected with path channels.
Preferred, described condenser lens is provided with filter coating further.
Preferably, described LED light source comprises Transparent lamp shade, at least one LED bulb, substrate and fin further, and LED bulb is distributed on substrate, and it is near path channels side, LED bulb is coated that Transparent lamp shade is arranged on substrate; Fin is arranged on substrate near transfer tube side.
Preferred, it is poly methyl methacrylate plastic that the material of described Transparent lamp shade adopts.
The arranging of Transparent lamp shade does not weaken again the brightness of LED while effectively completely cutting off the heat that LED produces.
Preferred, described base plan is perpendicular to the axis of condenser lens.
Preferred, described fin is made up of aluminium alloy and is adopted outer thin interior thick structure, and the shape in fin cross section is isosceles trapezoid, right-angled trapezium or triangle.
Preferably, described lighting unit is fixedly connected with by adapter sleeve with transfer tube.
Compared with prior art, the invention has the beneficial effects as follows: a kind of medical endoscope provided by the present invention checks the mode that lighting device adopts the first light guide section and the second light guide section to match, light is transferred to optical fiber effectively, provides enough luminous fluxes for medical treatment uses; Fixed cell adopts sucker and bolt fixing mechanism two kinds of modes to fix, and expands the range of application that this medical endoscope checks lighting device, is convenient to the use of medical personnel located; Whole inspecting lamp simplicity of design is light, and therefore, application prospect is very wide.
Accompanying drawing explanation
Fig. 1 is the structural representation that medical endoscope provided by the invention checks a kind of preferred embodiment of lighting device;
Fig. 2 is the structural representation that medical endoscope provided by the invention checks a kind of preferred embodiment of lighting device control box.In figure: 1, lighting unit; 2, transfer tube; 3, fixed cell; 101, light path output; 102, path channels; 103, LED light source; 201, adapter sleeve; 301, consumer unit; 302, sucker; 303, bolted mechanism; 1011, optical fiber; 1012, sleeve; 1013, condenser lens; 1021, the first light guide section; 1022, the second light guide section; 1023, shell; 1031, Transparent lamp shade; 1032, LED bulb; 1033, substrate; 1034, fin.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, specific embodiments of the invention are described in further detail:
Embodiment shown in Fig. 1 is the preferred embodiment that a kind of medical endoscope provided by the invention checks lighting device, as shown in Figure 1, a kind of medical endoscope checks lighting device, comprise lighting unit 1, transfer tube 2 and fixed cell 3, lighting unit 1 comprises light path output 101 further, path channels 102 and LED light source 103, light path output 101, path channels 102 is connected successively with LED light source 103 and is connected with fixed cell 3 by transfer tube 2, lighting unit 1 is fixedly connected with by adapter sleeve 201 with transfer tube 2, fixed cell 3 comprises consumer unit 301 further, sucker 302 and bolt fastening structure 303, sucker 302 and bolt fastening structure 303 are arranged on consumer unit 301 both sides respectively, the high frequency switch power of PWM formula pulse width modulation is provided with in consumer unit 301, described high frequency switch power is connected with LED light source 103 by being provided with cable in transfer tube 2, to power to LED light source 103.
Shown in composition graphs 2, path channels 102 comprises the first light guide section 1021, second light guide section 1022 and shell 1023 further, first light guide section 1021 and the second light guide section 1022 are separately positioned on shell 1023 inwall both sides, first light guide section 1021 is arranged near light path output 101 side, and the second light guide section 1022 is arranged near LED light source 103 side.First light guide section 1021 and the second light guide section 1022 are respectively four rhombus bars and three rhombus bars, the radian of rhombus bar near LED light source 103 side of the first light guide section 1021 is greater than the radian near light path output 101 side, and the rhombus bar both sides radian of the second light guide section 1022 is 2 π.The height of the first light guide section 1021 rhombus bar and width successively decrease to light path output 101 side by near LED light source 103 side, and the height of the second light guide section 1022 rhombus bar and width are consistent.
Consistent and the radian of second light guide section 1022 both sides radian is less than the radian of the first light guide section 1021 either side, what make the second light guide section 1022 present a comparable steepness connects light face, light can present the reflection of different directions after contacting with the second light guide section 1022, thus forms diffuse reflection; And the first light guide section 1021 is also play identical effect near the design that the side of the second light guide section 1022 takes radian large, light is broken up, light after diffuse reflection through the reflection of shell 1023 inwall reflector layer, then via the reflecting into into light path output 101 of side of the first light guide section 1021 relative smooth.
The shell 1023 of path channels 102 is the gradual cylinder of an edge circular arc, and the cross section of shell 1023 near LED light source 103 side is greater than the cross section near light path output 101 side, and shell 1023 inwall is provided with reflector layer.Light is after LED light source 103 enters path channels 102, first diffuse reflection is carried out by the first light guide section 1021 pairs of incident light lines, second light guide section 1022 carries out guiding reflection to the light after diffuse reflection again, the light ensuring sufficient intensity can enter into light path output 101, thus ensure that enough luminous fluxes.
Light path output 101 comprises optical fiber 1011, sleeve 1012 and condenser lens 1013 further, optical fiber 1011 and sleeve 1012 are hollow cylinder, optical fiber 1011 diameter be less than the diameter of sleeve 1012, optical fiber 1011 is fixedly connected with by screw with sleeve 1012, condenser lens 1013 to be arranged within sleeve 1012 and to be connected with path channels 102, and condenser lens 1013 is provided with filter coating further.LED light source 103 comprises Transparent lamp shade 1031 further, seven LED bulb 1032, substrate 1033 and fin 1034, LED bulb 1032 linearly shape is distributed on substrate 1033, Transparent lamp shade 1031 is arranged on substrate 1033 near path channels 102 side and by coated for LED bulb 1032, it is poly methyl methacrylate plastic that the material of Transparent lamp shade 1031 adopts, substrate 1033 plane orthogonal is in the axis of condenser lens 1013, fin 1034 is arranged on substrate 1033 near transfer tube 2 side, fin 1034 is made up of aluminium alloy and is adopted outer thin interior thick structure, the shape in fin 1034 cross section is isosceles trapezoid, right-angled trapezium or triangle, present embodiment adopts isosceles trapezoidal structure.The arranging of Transparent lamp shade 1031 does not weaken again the brightness of LED while effectively completely cutting off the heat that LED produces.
Relative to prior art, the invention has the beneficial effects as follows: a kind of medical endoscope provided by the present invention checks the mode that lighting device adopts the first light guide section and the second light guide section to match, light is transferred to optical fiber effectively, provides enough luminous fluxes for medical treatment uses; Fixed cell adopts sucker and bolt fixing mechanism two kinds of modes to fix, and expands the range of application that this medical endoscope checks lighting device, is convenient to the use of medical personnel located; Whole inspecting lamp simplicity of design is light, and therefore, application prospect is very wide.
The above embodiment of the present invention is only the use that technical solution of the present invention is described simultaneously; be only enumerating of technical solution of the present invention; be not limited to technical scheme of the present invention and protection domain thereof, some nonessential improvement that those skilled in the art's foregoing according to the present invention proposes and adjustment all belong to protection scope of the present invention.