CN115054432A - Accurate keratitis positioning treatment device - Google Patents
Accurate keratitis positioning treatment device Download PDFInfo
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- CN115054432A CN115054432A CN202210524006.3A CN202210524006A CN115054432A CN 115054432 A CN115054432 A CN 115054432A CN 202210524006 A CN202210524006 A CN 202210524006A CN 115054432 A CN115054432 A CN 115054432A
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- 238000011282 treatment Methods 0.000 title claims abstract description 56
- 206010023332 keratitis Diseases 0.000 title claims abstract description 41
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 71
- 210000001508 eye Anatomy 0.000 claims abstract description 48
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 6
- 230000004807 localization Effects 0.000 claims 9
- 238000002560 therapeutic procedure Methods 0.000 claims 9
- 230000003287 optical effect Effects 0.000 abstract description 38
- 206010061218 Inflammation Diseases 0.000 abstract description 11
- 230000004054 inflammatory process Effects 0.000 abstract description 10
- 210000004087 cornea Anatomy 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 230000001954 sterilising effect Effects 0.000 abstract description 4
- 230000003467 diminishing effect Effects 0.000 abstract description 3
- 230000001225 therapeutic effect Effects 0.000 description 7
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- 238000012544 monitoring process Methods 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- 230000000922 anti-bactericidal effect Effects 0.000 description 2
- 230000003110 anti-inflammatory effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
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- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 2
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- 230000002427 irreversible effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0624—Apparatus adapted for a specific treatment for eliminating microbes, germs, bacteria on or in the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0626—Monitoring, verifying, controlling systems and methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
- A61N2005/0643—Applicators, probes irradiating specific body areas in close proximity
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0661—Radiation therapy using light characterised by the wavelength of light used ultraviolet
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Abstract
The accurate keratitis positioning treatment device comprises an optical path system and a control circuit electrically connected with the optical path system, wherein the optical path system comprises a treatment optical path, an ultraviolet light source used for emitting ultraviolet light to human eyes is arranged on the treatment optical path, a liquid crystal array consisting of a plurality of groups of liquid crystal pixel units is arranged behind the ultraviolet light source, the liquid crystal array changes the gray scale of liquid crystal molecules in the liquid crystal pixel units through a drive control circuit, and is further used for adjusting the brightness of the ultraviolet light penetrating through the liquid crystal array. The invention has the advantages that: the gray scale of each liquid crystal pixel unit is independently adjusted, so that the brightness and the uniformity of ultraviolet light penetrating through the liquid crystal array are adjusted, the liquid crystal display device is flexibly suitable for inflammation of different degrees of eye keratitis of a patient, the treatment process of diminishing inflammation and sterilizing is accurately carried out, and unnecessary damage caused by ultraviolet irradiation to the eye cornea area without keratitis is avoided.
Description
Technical Field
The invention relates to an accurate keratitis positioning treatment device, and belongs to the field of keratitis treatment equipment.
Background
Keratitis is one of common ophthalmic diseases and is also one of the main blindness-causing eye diseases in China. The cornea is located at the forefront of the eyeball and is directly contacted with the outside, so that the cornea is easily damaged by microorganisms, trauma and physical and chemical stimulation factors to cause inflammation. The treatment method comprises drug treatment, irrigation, ultraviolet laser irradiation and the like, wherein the ultraviolet laser treatment method is used for treating keratitis by irradiating ultraviolet laser to the surface of human eyes and then performing anti-inflammation sterilization. The existing ultraviolet irradiation equipment has the problem of over-treatment, and then causes side effects after the treatment of a patient due to the over-treatment, the over-treatment is caused by the fact that an ultraviolet laser light source cannot be accurately adjusted and is poor in uniformity, the coverage range is too large during the treatment, the ultraviolet laser is irradiated to the cornea without inflammation, the problem of damaging the healthy cornea of the patient is caused, and the ultraviolet laser also causes irreversible damage to the bottom of the human eyes through the pupils, so that the ultraviolet irradiation equipment has larger defects and treatment risks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a precise keratitis positioning treatment device.
An accurate keratitis positioning treatment device comprises an optical path system and a control circuit electrically connected with the optical path system, the light path system comprises a treatment light path, an ultraviolet light source for emitting ultraviolet light to human eyes is arranged on the treatment light path, a liquid crystal array consisting of a plurality of groups of liquid crystal pixel units is arranged behind the ultraviolet light source, the liquid crystal array changes the gray scale by changing the arrangement state of liquid crystal molecules in the liquid crystal pixel unit through the drive control circuit, and further for adjusting the brightness of the ultraviolet light transmitted through the liquid crystal array, each liquid crystal pixel cell being capable of adjusting the gray scale individually, therefore, the brightness of ultraviolet light penetrating through the liquid crystal array is adjusted, the liquid crystal array is flexibly adapted to inflammations of different degrees of eye keratitis of a patient, the treatment process of diminishing inflammation and sterilizing is accurately carried out, and unnecessary damage caused by ultraviolet irradiation to the eye cornea area without keratitis is avoided.
Further, be equipped with the beam expanding assembly on the treatment light path, the beam expanding assembly includes along the rotatory first prism of horizontal direction and the rotatory second prism of vertical direction of edge that sets up with first prism interval, and first prism and second prism change the light shape that ultraviolet light source launches into square light through the refraction, and first prism and second prism are driven the rotation by the motor respectively.
Furthermore, a fly eye lens and a light homogenizing rod are arranged behind the second prism, the fly eye lens can improve the light energy utilization rate, and the fly eye lens and the light homogenizing rod expand and homogenize the light.
Further, still be equipped with the feedback subassembly on the treatment light path, the feedback subassembly passes through including locating the first semi-transparent semi-reflecting mirror after the subassembly that expands beam the light of first semi-transparent semi-reflecting mirror jets out to first image sensor, and reflection and transmissive proportion can be set for according to actual need to first semi-transparent semi-reflecting mirror, and the light of first semi-transparent semi-reflecting mirror of effluence passes through the light intensity and the even light effect of treatment light among the accurate monitoring optical path system of first image sensor, calibrates ultraviolet light source or other subassemblies.
Preferably, the optical path system is including the location light path, be equipped with the blue light source on the location light path, locate the semi-transparent half mirror of second and the semi-transparent half mirror of third behind the blue light source, the treatment light path is located simultaneously to the semi-transparent half mirror of second, the semi-transparent half mirror of second only reflects the blue light, and the location light path is used for fixing a position patient keratitis accurate position, and the semi-transparent half mirror of second transmits ultraviolet, infrared, red light ray, can not block the treatment light path and shine on the people's eye.
Preferably, the blue light source is used for transmitting blue light to people's eyes, sees through the light of third half mirror jets out to the second image sensor on, be equipped with first camera lens between blue light source and the third half mirror, be equipped with the second camera lens between third half mirror and the second image sensor, the third half mirror can transmit the blue light that people's eyes reflect back to the second image sensor on, the patient drops into fluorescein sodium eye drops earlier, and the affected part can be fluorescence under the blue light shines, can observe position, area, the degree of depth of patient keratitis through the second image sensor according to the luminance and the distribution of fluorescence.
Preferably, the optical path system includes the solid optical path of looking, be equipped with red light source, locate fourth semi-transparent semi-reflecting mirror and the fifth semi-transparent semi-reflecting mirror behind the red light source on the solid optical path of looking, the treatment light path is located simultaneously to the fourth semi-transparent semi-reflecting mirror, the fourth semi-transparent semi-reflecting mirror only reflects ruddiness and infrared light, through fourth semi-transparent semi-reflecting mirror and fifth semi-transparent semi-reflecting mirror with red light emission to people's eye, prevent that patient's eyeball from influencing treatment effect because of there is not fixed sight to move at will when the treatment.
Preferably, an infrared light source is further arranged on the fixation light path, infrared light emitted by the infrared light source penetrates through light of the fifth half mirror to be emitted to an infrared monitor, the fifth half mirror only reflects red light, a third lens is arranged between the infrared monitor and the fifth half mirror, infrared light reflected by human eyes is emitted to the infrared monitor through the fifth half mirror, and personnel can see the moving state of eyeballs of the patient through the monitor to better perform treatment.
Furthermore, a fixation target surface behind the red light source is arranged on the fixation light path, the red light source is used for emitting red light to the fixation target surface, a light-transmitting hole is formed in the fixation target surface, a fourth lens is arranged between the red light source and the fixation target surface, a fifth lens is arranged between the fixation target surface and the fifth semi-transparent semi-reflecting mirror, and the fixation point is arranged on the fixation target surface after the red light source is emitted to the fixation target surface, so that stimulation of the red light to human eyes is reduced.
Furthermore, the fixation target surface can move along the horizontal direction, so that in order to prevent ultraviolet light from directly irradiating to the bottoms of human eyes through pupils, the fixation target surface is moved to enable the human eyes to rotate a certain angle to avoid direct irradiation of the pupils, and the damage to the human eyes is reduced.
The invention has the following beneficial effects: the gray scale of each liquid crystal pixel unit is independently adjusted, so that the brightness and the uniformity of ultraviolet light penetrating through the liquid crystal array are adjusted, the liquid crystal display device is flexibly suitable for inflammation of different degrees of eye keratitis of a patient, the treatment process of diminishing inflammation and sterilizing is accurately carried out, and unnecessary damage caused by ultraviolet irradiation to the eye cornea area without keratitis is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
FIG. 1 is a light path diagram of the present invention;
FIG. 2 is a structural diagram of a liquid crystal pixel unit according to the present invention;
FIG. 3 is a view showing the structure of a fixation target surface according to the present invention;
FIG. 4 illustrates the therapeutic status of the rotation angle of the human eye according to the present invention;
in the figure, 1-optical path system; 2-treatment light path; 21-a source of ultraviolet light; 22-a liquid crystal array; 221-liquid crystal pixel cell; 2211-liquid crystal molecules; 23-a beam expanding assembly; 231-a first prism; 232-a second prism; 233-fly's eye lens; 234-light homogenizing rod; 24-a feedback component; 241-a first half mirror; 242-a first image sensor; 3-positioning the optical path; 31-a blue light source; 32-a second half mirror; 33-a third half mirror; 34-a second image sensor; 35-a first lens; 36-a second lens; 4-fixation of the optical path; 41-red light source; 411-an infrared light source; 42-a fourth half mirror; 43-fifth half mirror; 44-an infrared monitor; 45-third lens; 46-fixation of the target surface; 47-light hole; 48-fourth lens; 49-fifth lens.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
The terms of direction and position of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the present invention.
As shown in fig. 1-2, an embodiment of an apparatus for precise positioning treatment of keratitis according to the present invention includes an optical system 1 and a control circuit electrically connected to the optical system 1, the optical system 1 includes a treatment optical path 2, an ultraviolet light source 21 for emitting ultraviolet light to human eyes is disposed on the treatment optical path 2, the intensity of the ultraviolet light source 21 is flexibly selected according to the keratitis with different severity of a patient, a liquid crystal array 22 formed by a plurality of sets of liquid crystal pixel units 221 is disposed behind the ultraviolet light source 21, the liquid crystal array 22 changes the gray scale by driving the control circuit to change the arrangement state of liquid crystal molecules 2211 in the liquid crystal pixel units 221, and further adjusts the brightness of the ultraviolet light passing through the liquid crystal array 22, each liquid crystal pixel unit 221 can independently adjust the gray scale, the driving control circuit adjusts the voltage to change the gray scale after powering on a single liquid crystal pixel unit 221, the ultraviolet brightness passing through the single liquid crystal pixel unit 221 can be controlled, the ultraviolet brightness is not transmitted when the gray scale is maximum, the ultraviolet brightness is completely transmitted when the gray scale is minimum, the range of ultraviolet irradiation on human eyes is accurately controlled, inflammation of different degrees of eye keratitis of a patient can be flexibly adapted, the anti-inflammatory and bactericidal treatment process is accurately carried out, and unnecessary damage caused by ultraviolet irradiation on the eye cornea area without keratitis is avoided. The principle of adjusting the gray scale by changing the arrangement state of the liquid crystal molecules driven by the control circuit in the application is the prior art, and specifically comprises the following steps: the pair of pixel electrodes and the common electrode and a part of the liquid crystal layer between the electrodes, namely the pixel region, form a liquid crystal pixel unit, the driving voltage of the liquid crystal pixel unit is the difference between the pixel voltage applied to the liquid crystal pixel unit electrode and the common voltage applied to the common electrode, the arrangement of liquid crystal molecules in the liquid crystal pixel unit is set by using an electric field corresponding to the driving voltage, the transmittance of the liquid crystal pixel unit is controlled, and a liquid crystal array formed by the liquid crystal pixel unit is a mature device in the market, and the structure of the liquid crystal array is not described in detail again in this embodiment.
Referring to fig. 1-2, a beam expanding assembly 23 is disposed on the treatment light path 2, the beam expanding assembly 23 includes a first prism 231 rotating in the horizontal direction and a second prism 232 rotating in the vertical direction and spaced from the first prism 231, a fly eye lens 233 and a light homogenizing rod 234 are disposed behind the second prism 232, the first prism 231 and the second prism 232 are respectively driven by a motor to rotate, the first prism 231 and the second prism 232 function to convert the shape of light emitted from the ultraviolet light source 21 into square light by refraction, the fly eye lens 233 and the light homogenizing rod 234 expand the formed square light again, the fly eye lens 233 can improve the light energy utilization rate, the light is expanded and homogenized together with the light homogenizing rod 234, square light is converted into round light with a larger coverage surface, ultraviolet light irradiated on the liquid crystal array 22 is more uniform, and the problem of overlarge light intensity difference cannot occur.
Referring to fig. 1-2, a feedback assembly 24 is further disposed on the treatment light path 2, the feedback assembly 24 includes a first half mirror 241 disposed behind the beam expanding assembly 23, light passing through the first half mirror 241 is emitted to the first image sensor 242, the first half mirror 241 can set a ratio of reflection to transmission according to actual requirements, and when the intensity of the ultraviolet light source 21 is high, the ratio of reflection to transmission of the first half mirror 241 can be adjusted to be 5: 5; when the intensity of the ultraviolet light source 21 is low, the reflection-transmission ratio of the first half mirror 241 can be adjusted to be 2: 8, etc., the light transmitted through the first half mirror 241 is used for accurately monitoring the light intensity and the light homogenizing effect of the therapeutic light in the optical path system through the first image sensor 242, and calibrating the ultraviolet light source 21 or other components.
Referring to fig. 1-2, the optical path system 1 includes a positioning optical path 3, a blue light source 31, a second half mirror 32 and a third half mirror 33 are disposed on the positioning optical path 3, the second half mirror 32 is disposed on the therapeutic optical path 2, the blue light source 31 is used for emitting blue light to human eyes, the second half mirror 32 only reflects blue light and transmits ultraviolet, infrared and red light, and does not block the therapeutic optical path 2 from irradiating on human eyes, the third half mirror 33 transmits and reflects blue light according to a certain ratio (e.g. 5: 5), the light transmitted through the third half mirror 33 is emitted to the second image sensor 34, a first lens 35 is disposed between the blue light source 31 and the third half mirror 33, a second lens 36 is disposed between the third half mirror 33 and the second image sensor 34, the first lens 35 and the second lens 36 can adjust the focusing and capturing degree of light, the convenience is adjusted according to the disease of difference, location light path 3 is used for fixing a position the accurate position of patient's keratitis, the patient drops into fluorescein sodium eye drops at first, the affected part can be fluorescence under the blue light shines, third half mirror 33 can be with the blue light transmission to the second image sensor 34 that people's eye reflected back, can be through the position of second image sensor 34 to patient's keratitis according to the luminance and the distribution of fluorescence, the area, the degree of depth is observed, and in data transmission to the control circuit who will collect, control circuit adjusts liquid crystal array 22's light-transmitting area and luminousness according to specific data, further accurate treatment keratitis.
When the accurate keratitis positioning treatment device is used, the ultraviolet light source 2 with proper intensity is selected according to the severity of keratitis of a patient, light emitted by the ultraviolet light source 2 is emitted to the liquid crystal array 22 after being homogenized by the beam expanding assembly 23 and adjusted in light shape, the gray scale of each liquid crystal pixel unit 221 in the liquid crystal array 22 is adjusted by the driving control circuit according to data transmitted by the second image sensor 34 in the positioning light path 3, the brightness of the ultraviolet light penetrating through the liquid crystal array 22 is controlled, and the adjusted ultraviolet light is irradiated to human eyes more uniformly and accurately without irradiating an area without keratitis. Meanwhile, the ultraviolet light expanded by the beam expanding assembly 23 is transmitted to the first image sensor 242 through the first half mirror 241, so as to accurately monitor the homogenization of the therapeutic light in the optical path system and the effect after the beam expansion, and to adjust the therapeutic light in time. The control circuit is driven to compare the pre-stored data with the ultraviolet energy input by the therapeutic light path 2 through the monitoring of the first image sensor 242, so as to control the gray scale of each liquid crystal pixel unit 221 in the liquid crystal array 22.
As shown in fig. 1-2, an embodiment of an apparatus for precise positioning treatment of keratitis according to the present invention includes an optical system 1 and a control circuit electrically connected to the optical system 1, the optical system 1 includes a treatment optical path 2, an ultraviolet light source 21 for emitting ultraviolet light to human eyes is disposed on the treatment optical path 2, the intensity of the ultraviolet light source 21 is flexibly selected according to the keratitis with different severity of a patient, a liquid crystal array 22 formed by a plurality of sets of liquid crystal pixel units 221 is disposed behind the ultraviolet light source 21, the liquid crystal array 22 changes the gray scale by driving the control circuit to change the arrangement state of liquid crystal molecules 2211 in the liquid crystal pixel units 221, and further adjusts the brightness of the ultraviolet light passing through the liquid crystal array 22, each liquid crystal pixel unit 221 can independently adjust the gray scale, the driving control circuit adjusts the voltage to change the gray scale after powering on a single liquid crystal pixel unit 221, the ultraviolet brightness passing through the single liquid crystal pixel unit 221 can be controlled, the ultraviolet brightness is not transmitted when the gray scale is maximum, the ultraviolet brightness is completely transmitted when the gray scale is minimum, the range of ultraviolet irradiation on human eyes is accurately controlled, inflammation of different degrees of eye keratitis of a patient can be flexibly adapted, the anti-inflammatory and bactericidal treatment process is accurately carried out, and unnecessary damage caused by ultraviolet irradiation on the eye cornea area without keratitis is avoided.
Referring to fig. 1-3, the optical path system 1 further includes a fixed-vision optical path 4, the fixed-vision optical path 4 is provided with a red light source 41, a fourth half mirror 42 and a fifth half mirror 43 which are disposed behind the red light source 41, the fourth half mirror 42 is disposed on the treatment optical path 2, the fourth half mirror 42 only reflects red light and infrared light and transmits ultraviolet light emitted from the liquid crystal array 22 without blocking the treatment optical path 2 from irradiating human eyes, the fixed-vision optical path is further provided with an infrared light source for emitting infrared light to human eyes, the fifth half mirror 43 reflects red light and transmits infrared light, infrared light emitted from the infrared light source 411 passes through the fifth half mirror 43 and is emitted to an infrared monitor 44, a third lens 45 is disposed between the infrared monitor 44 and the fifth half mirror 43, the fixed-vision optical path 4 is further provided with a fixed-vision target surface 46 located behind the red light source 41, the fixation target surface 46 is provided with a light hole 47, or is in other shapes such as a cross shape, a fourth lens 48 is arranged between the red light source 41 and the fixation target surface 46, a fifth lens 49 is arranged between the fixation target surface 46 and the fifth half mirror 43, the third lens 45, the fourth lens 48 and the fifth lens 49 also play a role in focusing and capturing light, the red light is emitted to human eyes through the fourth half mirror 42 and the fifth half mirror 43, the influence on the treatment effect caused by the random movement of the eyeballs of the patient due to no fixed viewpoint is prevented during the treatment, the fixed viewpoint is arranged on the fixation target surface 46 after the red light source 41 is emitted to the fixation target surface 46, the stimulation of the red light to the human eyes is reduced, the infrared light emitted by the human eyes is emitted to the infrared monitor 44 through the fifth half mirror 43, and the personnel can see the moving state and the treatment state of the patient through the infrared monitor 44, better control of the treatment process.
Referring to fig. 4, the fixation target surface 46 can move along the horizontal direction, and the position of the fixation point, i.e. the rotation angle of the eyeball, is adjusted, so that ultraviolet light is prevented from directly irradiating to the bottom of the human eye through the pupil, direct irradiation of the pupil area is avoided, and the damage to the human eye is reduced.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
While the invention has been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the specific embodiments disclosed. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. An accurate keratitis positioning treatment device is characterized in that: the ultraviolet light source is arranged on the treatment light path, an ultraviolet light source used for emitting ultraviolet light to human eyes is arranged behind the ultraviolet light source, a liquid crystal array composed of a plurality of groups of liquid crystal pixel units is arranged behind the ultraviolet light source, the liquid crystal array changes the arrangement state of liquid crystal molecules in the liquid crystal pixel units through a driving control circuit to change the gray scale of the liquid crystal array, and then the liquid crystal array is used for adjusting the brightness of the ultraviolet light penetrating through the liquid crystal array.
2. The precise keratitis localization therapy device of claim 1, wherein: the treatment light path is provided with a beam expanding assembly, and the beam expanding assembly comprises a first prism rotating along the horizontal direction and a second prism rotating along the vertical direction and arranged at an interval with the first prism.
3. The precise keratitis localization therapy apparatus of claim 2, wherein: a fly-eye lens and a light homogenizing rod are arranged behind the second prism.
4. The precise keratitis localization therapy apparatus of claim 2, wherein: still be equipped with feedback assembly on the treatment light path, feedback assembly is including locating the first half mirror behind the beam expanding assembly, passes through the light of first half mirror jets out to first image sensor.
5. The precise keratitis localization therapy device of claim 1, wherein: the light path system comprises a positioning light path, wherein a blue light source, a second semi-transparent semi-reflective mirror and a third semi-transparent semi-reflective mirror are arranged on the positioning light path, the second semi-transparent semi-reflective mirror is arranged on the treatment light path, and the second semi-transparent semi-reflective mirror only reflects blue light.
6. The precise keratitis localization therapy apparatus of claim 5, wherein: the blue light source is used for emitting blue light to human eyes, the light penetrating through the third semi-transparent semi-reflective mirror is emitted to the second image sensor, a first lens is arranged between the blue light source and the third semi-transparent semi-reflective mirror, and a second lens is arranged between the third semi-transparent semi-reflective mirror and the second image sensor.
7. The precise keratitis localization therapy device of claim 1, wherein: the light path system comprises a fixed vision light path, wherein a red light source, a fourth semi-transparent semi-reflective mirror and a fifth semi-transparent semi-reflective mirror are arranged on the fixed vision light path and are arranged behind the red light source, the fourth semi-transparent semi-reflective mirror is arranged on the treatment light path at the same time, and the fourth semi-transparent semi-reflective mirror only reflects red light and infrared light.
8. The precise keratitis localization therapy device of claim 7, wherein: an infrared light source is further arranged on the fixed sight path, infrared light emitted by the infrared light source penetrates through light of the fifth half-transmitting half-reflecting mirror to be emitted to an infrared monitor, the fifth half-transmitting half-reflecting mirror only reflects red light, and a third lens is arranged between the infrared monitor and the fifth half-transmitting half-reflecting mirror.
9. The precise keratitis localization therapy device of claim 7, wherein: the fixation light path is provided with a fixation target surface positioned behind the red light source, the red light source is used for emitting red light to the fixation target surface, the fixation target surface is provided with a light transmitting hole, a fourth lens is arranged between the red light source and the fixation target surface, and a fifth lens is arranged between the fixation target surface and the fifth semi-transparent semi-reflecting mirror.
10. The precise keratitis localization therapy apparatus of claim 9, wherein: the fixation target surface can move along the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524006.3A CN115054432A (en) | 2022-05-13 | 2022-05-13 | Accurate keratitis positioning treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210524006.3A CN115054432A (en) | 2022-05-13 | 2022-05-13 | Accurate keratitis positioning treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN115054432A true CN115054432A (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210524006.3A Pending CN115054432A (en) | 2022-05-13 | 2022-05-13 | Accurate keratitis positioning treatment device |
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| Country | Link |
|---|---|
| CN (1) | CN115054432A (en) |
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2022
- 2022-05-13 CN CN202210524006.3A patent/CN115054432A/en active Pending
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