CN100457061C - Adjustable artificial crystal based on micro-opto- electro-mechanical system - Google Patents
Adjustable artificial crystal based on micro-opto- electro-mechanical system Download PDFInfo
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- CN100457061C CN100457061C CNB2006100245057A CN200610024505A CN100457061C CN 100457061 C CN100457061 C CN 100457061C CN B2006100245057 A CNB2006100245057 A CN B2006100245057A CN 200610024505 A CN200610024505 A CN 200610024505A CN 100457061 C CN100457061 C CN 100457061C
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Abstract
The invention relates to an adjustable artificial crystal based on micro-photo dynamoelectric system, belonging to field of biological medicine engineering. The invention comprises a zoom-lens system that be embedded into eye and a control system out of eye. Said zoom-lens system comprises: positive lens, negative lens, signal and energy receiving coil, artificial crystal, singal treating and controlling unit, micro-motor and guide rail. Said control system comprises: signal and energy receiving coil, infrared distance-measuring unit, energy supply unit and glass frame. Said control system comprises zoom-lens system with combined functions of energy supply, distance measuring, coupling signal with energy into eyes; said zoom-lens system possesses functions of receiving, treating and controlling signal and energy. The negative lens are moved in axial direction drove by micro-motor, to change the diopter and ensure target object be imaged on retina accurately at real time.
Description
Technical field
The present invention relates to the artificial intraocular lenses in a kind of biomedical engineering technology field, specifically is a kind of adjustable artificial crystal based on Micro-Opto-Electro-Mechanical Systems.
Background technology
The crystalline lens of human eye has by changing shape and reaches the adjustable function of diopter.At present, in clinical ophthalmology, make the trouble eye lose this function after lens extraction and artificial intraocular lenses implant,, generally also can only realize the clear vision of certain single distance even postoperative is worn eyes.Though people adopt the artificial intraocular lenses of many focus designs or utilize the function realization eye to a certain degree of eye ciliary muscle to regulate, clinical effectiveness is not good.Many focuses artificial intraocular lenses is that the way that adopts aspherics to make makes the artificial intraocular lenses possess multiple focal power simultaneously, realizes that the artificial intraocular lenses implants eye different distance looked the thing requirement.But in fact this artificial intraocular lenses is not proper adjustable artificial crystal, and because it has a plurality of optical focus simultaneously, corresponding different distance target is imaged on the retina simultaneously, cause the stack of a plurality of retina optical images, the contrast of the feasible optogram of looking target is lower, thereby causes visual disturbance and look the thing difficulty.That really can be regarded as adjustable artificial crystal at present is two shape artificial intraocular lensess.By particular design to artificial intraocular lenses Pan, the Suspensory ligament on the phacocyst is loosened in the contraction of ciliary muscle when the trouble eye is watched attentively different distance, under phacocyst and self elastic effect, change the distance of two lens, change the dioptric purpose of crystal thereby reach.But the diopter range of accommodation that this method realizes is very limited, and the relation between the dioptric tolerance of ciliary muscle contraction amount and required change can not be set up effectively, and that can not satisfy patient orthobiosis looks the thing needs.
Find through literature search prior art, U.S. Patent number is 6120538 patent, the name of patent is called: " INTRA-OCULAR LENS SYETEM INCLUDING MICROELECTRIC COMPONENTS " (ophthalmic crystal that comprises little electric unit), being characterized as of this patent: " the ophthalmic prosthese of dynamic function.This prosthese comprises the crystal and the microelectronic device that is attached on the crystal of an implantable ophthalmic.The crystal system that embodiment is a kind of pancratic implantable ophthalmic is used to adjust the focal length of implantable lens.Thereby micro motor changes the tension force of the binder that is surrounded on deformable crystal periphery and changes crystalline focal length to change crystalline shape.Another embodiment is that the matrix that a kind of artificial intraocular lenses is set up as microelectronics forms the neural prosthese of a kind of energy exciting eye to repair the vision because of the patient of retinal diseases blinding." its weak point is: 1, because the covering of pupil, optical-electrical converter can not get enough illumination and obtains enough energy; 2, the low-light electric device is deployed on the intraocular lens optic face, has influenced retina image-forming, is unsuitable for the crystalline requirement of implantable artificial after cataract patient's lens extraction; 3, the pulling of binder makes the crystalline lens distortion, causes the displacement of chip on the crystal easily.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of adjustable artificial crystal based on Micro-Opto-Electro-Mechanical Systems is provided, make it utilize the micro photo-electro-mechanical technology to produce and a kind ofly can change adjustable artificial crystal system focal length and that can implant ophthalmic, when satisfying implantable artificial crystal behind the cataract extraction and blind person's visual performance and repairing to the demand of different distance vision.The present invention is fixed in control unit on artificial intraocular lenses's button loop, is difficult for moving, and does not influence the logical laser energy supply in intraocular lens optic district; The way that adopts the outside energy supply of eye and be coupled to ophthalmic has overcome to utilize and is fixed in the artificial intraocular lenses and goes up the photoelectricity conversion array and realize the inefficient weakness of energy supply.
The present invention is achieved by the following technical solutions, the present invention includes: the zoom-lens system of implantable ophthalmic and the outer control of eye system.
The zoom-lens system of described implantable ophthalmic comprises: plus lens, minus lens, signal and energy receiving coil, artificial intraocular lenses's button loop, signal processing and control unit, micro motor, guide rail.Described micro motor is positioned on the outside artificial intraocular lenses's button loop of guide rail; Described signal processing and control unit are positioned on the outside artificial intraocular lenses's button loop of guide rail; Described signal and energy receiving coil are looped around on artificial intraocular lenses's button loop; Described artificial intraocular lenses's button loop links to each other with the zoom-lens system of implantable ophthalmic, and is fixed in the phacocyst; The zoom-lens system of described implantable ophthalmic can move axially minus lens under micro motor drives in the guide rail upper edge under the effect at micro motor; Described micro motor is handled by the wired connection received signal and the control signal of control unit also produces corresponding motion; Described signal processing and control unit can be by wired received signal and energy receiving coil signal and handle, provide the signal of control micro motor; Described signal and energy receiving coil can send the coupled signal of coil and by wired signal processing and control unit of passing to by wireless receiving eye external signal and energy;
The outer control of described eye system comprises: signal and energy transmission coil, infrared distance measurement unit, supply unit and frame.Described signal and energy send the spectacle-frame inner rim that coil is positioned at frame; Described infrared distance measurement unit is positioned on the right mirror outside of foot of frame; Described supply unit is positioned on the left mirror outside of foot of frame; Described signal and energy send coil and can and be coupled to the signal and the energy receiving coil of ophthalmic by the unitary distance signal of wired reception infrared distance measurement; Described infrared distance measurement unit can be by transmitting and receiving the infrared signal that target reflection is returned, calculate the distance of target and through signal processing after wired signal and energy transmission coil of passing to; Described supply unit can be opto-electronic conversion array or micro cell, can and send coil by signal and energy for the infrared distance measurement unit and provide energy for whole system.
When the present invention works, place the outer infrared distance measurement unit of eye to aim at a target of looking and launch infrared light, by the reflective infrared light measurement target of target and the distance between the eye, range information is converted to radiofrequency signal and sends signal and the energy receiving coil that coil is coupled to ophthalmic wirelessly by eye outer signal and energy.The signal of ophthalmic and energy receiving coil pass to the signal processing and the control unit of ophthalmic with signal by wired method, form control signal after treatment and send micro motor to.Minus lens moves axially in the guide rail upper edge in the zoom-lens system of micro motor implantable ophthalmic of driving under control signal control, change the focal length of Zoom lens system of implantable ophthalmic and the corresponding focal length of distance of formation and target and eye, thereby the target of looking accurately is imaged on the eyes retina.The energy of whole system is provided by the outer supply unit of eye.Described supply unit can be opto-electronic conversion array or micro cell.Energy is transferred to energy and signal transmission coil through lead, is coupled to the energy and the signal receiving coil of ophthalmic again; Energy and signal receiving coil send energy to signal processing and control unit through lead then, drive micro motor work.
Compared with prior art, the present invention records the accurate distance of the target of looking by the infrared distance measurement technology and changes artificial intraocular lenses's focal length by signal transmission and controlling organization, thereby the diopter that changes the artificial intraocular lenses makes target accurately to image on the retina, has overcome defective and how burnt artificial intraocular lenses nervous by eye ciliary muscle contraction and accompanying Suspensory ligament and that loosen as the engine of regulate crystal zoom mechanism and has caused the low deficiency of optogram contrast.This design can guarantee effectively that again the artificial intraocular lenses has enough big optical zone, and the transmission of signal and energy is not subjected to the influence of pupil size, can guarantee the operate as normal of the zoom-lens system of implantable ophthalmic under any illuminance.Cataract is the ophthalmology common disease, but behind cataract extraction and the implantable artificial crystal, generally can not realize the good vision of far and near different distance, and this invention can be benefited vast cataract patient, produces good society and economic benefit.In addition, this invention also can be used as imaging system and is applied to artificial vision's prosthese, has both improved artificial vision patient's external image, can make artificial vision's prosthese can be to the different distance target imaging again.
Description of drawings
Fig. 1 is the structural representation of the zoom-lens system of the implantable ophthalmic of the present invention.
Fig. 2 is the side structure sketch map of the zoom-lens system of the implantable ophthalmic of the present invention.
Fig. 3 is the device sketch map of the outer control of eye of the present invention system.
The specific embodiment
As shown in Figure 1, 2, 3, the present invention includes: the zoom-lens system 1 of implantable ophthalmic and the outer control of eye system 15.
The zoom-lens system 1 of described implantable ophthalmic comprises: plus lens 2, minus lens 3, signal and energy receiving coil 4, artificial intraocular lenses fasten with a rope, string, etc. 5, signal processing and control unit 6, micro motor 7, guide rail 8.Described plus lens 2 is fixed between the guide rail 8; Minus lens 3 and can move between guide rail 8 under the control of micro motor 7 between guide rail 8; Described artificial intraocular lenses fastens with a rope, string, etc. and 5 is an annular fixture and has three isolating fixing haptics feet, and is positioned at the outside of plus lens 2 and minus lens 3; Described micro motor 7 is positioned at guide rail 8 outside artificial intraocular lensess and fastens with a rope, string, etc. on 5; The artificial intraocular lenses that described signal processing and control unit 6 are positioned at guide rail 8 outsides fastens with a rope, string, etc. on 5; Described signal and energy receiving coil 4 are looped around the artificial intraocular lenses and fasten with a rope, string, etc. on 5;
The zoom-lens system 1 of described implantable ophthalmic can move axially minus lens 3 under micro motor 7 drives in guide rail 8 upper edges under the effect of micro motor 7; Described micro motor 7 is handled by the wired connection received signal and the control signal of control unit 6 also produces corresponding motion; Described signal processing and control unit 6 can be by wired received signal and energy receiving coil 4 signal and handle, provide the signal of control micro motor 7; Described signal and energy receiving coil 4 can send coil 10 coupled signals and by wired signal processing and control unit 6 of passing to by wireless receiving eye external signal and energy.
The outer control of described eye system 15 comprises: signal and energy send coil 10, infrared distance measurement unit 11, supply unit 12 and frame 16.Described signal and energy send spectacle-frame 9 inner rims that coil 10 is positioned at frame 16; Described infrared distance measurement unit 11 is positioned on right mirror foot 13 outsides of frame 16; Described supply unit 12 is positioned on left mirror foot 14 outsides of frame 16; Described signal and energy send coil 10 and can also be coupled by the distance signal of wired reception infrared distance measurement unit 11 to the signal and the energy receiving coil 4 of ophthalmic; Described infrared distance measurement unit 11 can be by transmitting and receiving the infrared signal that target reflection is returned, calculate the distance of target and through signal processing after wired signal and energy transmission coil 10 of passing to; Described supply unit 12 can be opto-electronic conversion array or micro cell, can and send coil 10 by signal and energy for infrared distance measurement unit 11 and provide energy for whole system.
Claims (8)
1, a kind of adjustable artificial crystal based on Micro-Opto-Electro-Mechanical Systems, comprise: zoom-lens system of implantable ophthalmic (1) and eye outer control system (15), it is characterized in that, the zoom-lens system of described implantable ophthalmic (1) comprising: plus lens (2), minus lens (3), signal and energy receiving coil (4), artificial intraocular lenses fasten with a rope, string, etc. (5), signal processing and control unit (6), micro motor (7), guide rail (8), plus lens (2) is fixed between the guide rail (8), minus lens (3) is positioned between the guide rail (8), artificial intraocular lenses's button loop (5) is an annular fixture and has three isolating fixing haptics feet, and be positioned at the outside of plus lens (2) and minus lens (3), micro motor (7) is positioned on the outside artificial intraocular lenses's button loop of guide rail (8) (5), signal processing and control unit (6) are positioned on the outside artificial intraocular lenses's button loop (5) of guide rail (8), and signal and energy receiving coil (4) are looped around on artificial intraocular lenses's button loop (5); The described outer control system of eye (15) comprising: signal and energy send coil (10), infrared distance measurement unit (11), supply unit (12) and frame (16), signal and energy send spectacle-frame (9) inner rim that coil (10) is positioned at frame (16), infrared distance measurement unit (11) is positioned on right mirror foot (13) outside of frame (16), and supply unit (12) is positioned on left mirror foot (14) outside of frame (16).
2, the adjustable artificial crystal based on Micro-Opto-Electro-Mechanical Systems according to claim 1 is characterized in that, described minus lens (3) moves axially in guide rail (8) upper edge.
According to claim 1 or 2 described adjustable artificial crystals, it is characterized in that 3, described micro motor (7) is handled by the wired connection received signal and the control signal of control unit (6) also produces corresponding motion based on Micro-Opto-Electro-Mechanical Systems.
4, the adjustable artificial crystal based on Micro-Opto-Electro-Mechanical Systems according to claim 1, it is characterized in that, described signal processing and control unit (6) by wired connection received signal and energy receiving coil (4) signal and handle, provide the signal of control micro motor (7).
5, according to claim 1 or 4 described adjustable artificial crystals based on Micro-Opto-Electro-Mechanical Systems, it is characterized in that described signal and energy receiving coil (4) receive the eye external signal by wireless connections and energy sends the coupled signal of coil (10) and passes to signal processing and control unit (6) by wired connection.
6, the adjustable artificial crystal based on Micro-Opto-Electro-Mechanical Systems according to claim 1, it is characterized in that described signal and energy send coil (10) and receive the distance signal of infrared distance measurement unit (11) and signal and the energy receiving coil (4) that ophthalmic is given in coupling by wired connection.
7, according to claim 1 or 6 described adjustable artificial crystals based on Micro-Opto-Electro-Mechanical Systems, it is characterized in that, described infrared distance measurement unit (11) can be by transmitting and receiving the infrared signal that target reflection is returned, calculate the distance of target and through signal processing after wired connection passes to signal and energy transmission coil (10).
8, the adjustable artificial crystal based on Micro-Opto-Electro-Mechanical Systems according to claim 1, it is characterized in that, described supply unit (12) is opto-electronic conversion array or micro cell, can and send coil (10) by signal and energy for infrared distance measurement unit (11) and provide energy for whole system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100245057A CN100457061C (en) | 2006-03-09 | 2006-03-09 | Adjustable artificial crystal based on micro-opto- electro-mechanical system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100245057A CN100457061C (en) | 2006-03-09 | 2006-03-09 | Adjustable artificial crystal based on micro-opto- electro-mechanical system |
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| CN1843308A CN1843308A (en) | 2006-10-11 |
| CN100457061C true CN100457061C (en) | 2009-02-04 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915975B (en) * | 2010-06-25 | 2012-01-04 | 浙江大学 | Variable-focus human eyeball imitation structure driven by linear performer |
| CN103272329B (en) * | 2013-05-06 | 2015-05-20 | 上海交通大学 | Artificial vision prosthetic device with wireless energy transmission function |
| CN103809225B (en) * | 2014-02-19 | 2015-08-19 | 浙江大学 | A kind of bionical zoom lens and drive unit thereof |
| WO2019141695A1 (en) * | 2018-01-16 | 2019-07-25 | Sav-Iol Sa | Ophthalmic assembly for implantation in an anterior chamber of an eye of a patient and method for accommodating the vision of the patient |
| CN112370212A (en) * | 2020-11-10 | 2021-02-19 | 天津大学 | Focal length adjusting method for intraocular lens combined extraocular zooming |
| CN116440409A (en) * | 2023-03-21 | 2023-07-18 | 北京工业大学 | Human retina cell stimulation equipment and method based on infrared light excitation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593437A (en) * | 1993-11-01 | 1997-01-14 | Sakurai Seigi Company, Ltd. | Device for adjusting a position of a focal point of an intraocular implant |
| US6120538A (en) * | 1995-08-18 | 2000-09-19 | Massachusetts Eye And Ear Infirmary | Intra-ocular lens system including microelectric components |
| DE10155345A1 (en) * | 2001-11-10 | 2003-05-22 | Fraunhofer Ges Forschung | Holder comprises a receiving structure which partially surrounds an intraocular lens on its peripheral side, electrode structures connected to the receiving structure, and a microelectronic component connected to the electrode structures |
| US6638304B2 (en) * | 2001-07-20 | 2003-10-28 | Massachusetts Eye & Ear Infirmary | Vision prosthesis |
-
2006
- 2006-03-09 CN CNB2006100245057A patent/CN100457061C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5593437A (en) * | 1993-11-01 | 1997-01-14 | Sakurai Seigi Company, Ltd. | Device for adjusting a position of a focal point of an intraocular implant |
| US6120538A (en) * | 1995-08-18 | 2000-09-19 | Massachusetts Eye And Ear Infirmary | Intra-ocular lens system including microelectric components |
| US6638304B2 (en) * | 2001-07-20 | 2003-10-28 | Massachusetts Eye & Ear Infirmary | Vision prosthesis |
| DE10155345A1 (en) * | 2001-11-10 | 2003-05-22 | Fraunhofer Ges Forschung | Holder comprises a receiving structure which partially surrounds an intraocular lens on its peripheral side, electrode structures connected to the receiving structure, and a microelectronic component connected to the electrode structures |
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