CN117618147A - Intraocular lens adjustment device, system and adjustment control method - Google Patents
Intraocular lens adjustment device, system and adjustment control method Download PDFInfo
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- CN117618147A CN117618147A CN202210986590.4A CN202210986590A CN117618147A CN 117618147 A CN117618147 A CN 117618147A CN 202210986590 A CN202210986590 A CN 202210986590A CN 117618147 A CN117618147 A CN 117618147A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008859 change Effects 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 7
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 6
- 210000003786 sclera Anatomy 0.000 claims abstract description 6
- 210000001747 pupil Anatomy 0.000 claims description 18
- 230000007423 decrease Effects 0.000 claims description 12
- 230000004308 accommodation Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000005674 electromagnetic induction Effects 0.000 claims description 6
- 210000001508 eye Anatomy 0.000 abstract description 17
- 230000004044 response Effects 0.000 abstract description 4
- 230000004438 eyesight Effects 0.000 description 7
- 239000002775 capsule Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 208000002177 Cataract Diseases 0.000 description 3
- 208000001491 myopia Diseases 0.000 description 3
- 206010025421 Macule Diseases 0.000 description 2
- 229910000566 Platinum-iridium alloy Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical class [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000001886 ciliary effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
- A61F2/1624—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
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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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention relates to the technical field of ophthalmic medical equipment, in particular to an intraocular lens adjusting device, a system and an adjusting control method, wherein the intraocular lens adjusting device comprises a wireless signal transmitting element, a wireless signal receiving element, an electromagnetic generating element and a magnetic piece, and the wireless signal transmitting element is used for transmitting electromagnetic waves; the wireless signal receiving element is arranged on the eyeball sclera and is in communication connection with the wireless signal transmitting element; the electromagnetic generating element is arranged on the wireless signal receiving element, the magnetic part is arranged on the intraocular lens and corresponds to the position of the electromagnetic generating element, the electromagnetic generating element controls the magnetic part to move along the radial direction so as to adjust the focal length of the intraocular lens, and the intraocular lens can be controlled to change different focal lengths only by controlling the power intensity of electromagnetic waves emitted by the wireless signal emitting element, so that the adjustment of the focal length of the intraocular lens is realized, the adjustment precision is high, the response is sensitive, and the adjustment requirement of eyes of a human body can be met.
Description
Technical Field
The invention relates to the technical field of ophthalmic medical equipment, in particular to an intraocular lens adjusting device, an intraocular lens adjusting system and an adjusting control method.
Background
The cataract surgery is an effective means for treating cataract, and the cataract surgery uses ultrasonic waves to crush the lens nucleus into chylomorphic shape, then aspirates the chylomorphic lens nucleus, but retains the lens capsule, and then implants the posterior chamber type intraocular lens into the lens capsule, and the vision can be recovered after the surgery. However, the intraocular lens implanted by surgery does not need to be "fitted", and the intraocular lens is not shaped like the lens of a normal human eye, and thus light entering the eye is adjusted to be focused on the macula portion of the retina by the action of ciliary muscles, and after the intraocular lens is used by a patient, the light entering the eye cannot be automatically focused on the macula portion according to needs because the intraocular lens has no adjusting function, so that problems such as good far vision, poor near vision, poor far vision and the like are caused.
In order to make the patient have clear vision in the far and near directions after the intraocular lens is implanted, the prior art adopts a multifocal intraocular lens, namely, the lens of the intraocular lens is provided with a plurality of focal lengths, so that after the light rays in the near and far directions pass through the multifocal intraocular lens, part of the light rays form clear object images on retina, but the multifocal intraocular lens forms a plurality of imaging focuses in the eye, so that the brain is required to be used for 'adapting', the patient can generate glare, halation or poor night vision, and the multifocal intraocular lens is also unadjustable and cannot completely realize the normal adjusting function of the eye.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the intraocular lens in the prior art cannot adaptively adjust the focal length, and causes poor eyesight and discomfort of a patient, so as to provide an intraocular lens adjusting device, an intraocular lens adjusting system and an intraocular lens adjusting control method which can effectively improve the postoperative eyesight of the patient and avoid discomfort.
In order to solve the above problems, the present invention provides an intraocular lens adjusting device for adjusting a focal length of an intraocular lens, comprising:
a wireless signal transmitting element for transmitting electromagnetic waves;
the wireless signal receiving element is arranged on the eyeball sclera and is in communication connection with the wireless signal transmitting element;
an electromagnetic generating element disposed on the wireless signal receiving element;
the magnetic part is arranged on the intraocular lens and corresponds to the position of the electromagnetic generating element, and the electromagnetic generating element controls the magnetic part to move along the radial direction so as to adjust the focal length of the intraocular lens.
Preferably, the system further comprises an image acquisition unit for acquiring the pupil distance information, wherein the image acquisition unit is in communication connection with a wireless signal transmitting element, and the wireless signal transmitting element transmits electromagnetic waves according to the pupil distance information.
Preferably, the electromagnetic generating element and the magnetic member are both provided, and the electromagnetic generating element and the magnetic member are provided on the equatorial plane of the intraocular lens.
Preferably, the wireless signal receiving element and the electromagnetic generating element are electrically connected through a rectifying, filtering and voltage stabilizing circuit.
Preferably, the wireless signal transmitting element is a wireless signal transmitting coil, the wireless signal receiving element is a wireless signal receiving coil, and the magnetic element is a permanent magnet.
In another aspect, the present invention also provides an intraocular lens accommodation system comprising an intraocular lens and an intraocular lens accommodation device as described above.
Preferably, the lens adjusting device further comprises a spectacle frame, and the wireless signal transmitting element and the image acquisition unit of the lens adjusting device are arranged on the spectacle frame.
In another aspect, the present invention also provides a method of controlling accommodation of an intraocular lens accommodation system, comprising:
the wireless signal transmitting element transmits electromagnetic waves;
the wireless signal receiving element receives electromagnetic waves and converts the electromagnetic waves into current so that the electromagnetic generating element generates magnetic force;
attractive force or repulsive force is generated between the electromagnetic generating element and the magnetic element, so that the magnetic element moves along the radial direction of the intraocular lens to drive the intraocular lens to deform and change the focal length of the intraocular lens.
Preferably, before the step of emitting the electromagnetic wave by the wireless signal emitting element, the method further includes a step of collecting the pupil distance data by the collecting unit, and in the step of emitting the electromagnetic wave by the wireless signal emitting element, the wireless signal emitting element emits the electromagnetic wave according to the pupil distance data.
Preferably, in the step of transmitting the electromagnetic wave by the wireless signal transmitting element, when the pupil distance data increases, the wireless transmitting coil reduces the power of transmitting the electromagnetic wave, and then in the step of receiving the electromagnetic wave by the wireless signal receiving element and converting the electromagnetic wave into current to cause the electromagnetic generating element to generate magnetic force, the electromagnetic induction intensity received by the wireless signal receiving element is reduced, the current output to the electromagnetic generating element is reduced, the magnetic force generated by the electromagnetic generating element is reduced, the attractive force or repulsive force thereof to the magnetic member is reduced, the deformation amount of the intraocular lens is reduced, and the focal length of the intraocular lens is increased;
in the step of transmitting electromagnetic waves by the wireless signal transmitting element, when the pupil distance data is reduced, the wireless transmitting coil increases the power of transmitting the electromagnetic waves, then the wireless signal receiving element receives the electromagnetic waves and converts the electromagnetic waves into current so that the electromagnetic generating element generates magnetic force, in the step of receiving the electromagnetic induction intensity by the wireless signal receiving element, the current output to the electromagnetic generating element is increased, the magnetic force generated by the electromagnetic generating element is increased so that the attractive force or repulsive force of the electromagnetic generating element to the magnetic element is increased, the deformation amount of the intraocular lens is increased, and the focal length of the intraocular lens is reduced.
The invention has the following advantages:
1. the invention provides an intraocular lens adjusting device which is used for adjusting the focal length of an intraocular lens and comprises a wireless signal transmitting element, a wireless signal receiving element, an electromagnetic generating element and a magnetic part, wherein the magnetic part is arranged on the intraocular lens and is positioned close to the outer edge of the intraocular lens, and corresponds to the position of the electromagnetic generating element.
2. The invention provides an intraocular lens adjusting device, wherein a wireless signal receiving element and an electromagnetic generating element are electrically connected through a rectifying, filtering and voltage stabilizing circuit, the rectifying circuit in the rectifying, filtering and voltage stabilizing circuit has the function of rectifying alternating voltage into unidirectional pulsating voltage, the filtering circuit has the function of filtering alternating components in the unidirectional pulsating voltage to enable output voltage to be closer to direct-current voltage, and the voltage stabilizing circuit has the function of automatically keeping the direct-current voltage on a load stable when an alternating-current power supply and a load fluctuate, namely, the direct-current power supply with enough power and stable voltage is provided for the load by the wireless signal receiving element and the electromagnetic generating element.
3. The invention provides an intraocular lens adjusting device, wherein magnetic pieces are arranged on an intraocular lens and are positioned near the outer edge of the intraocular lens and correspond to the positions of electromagnetic generating elements, the electromagnetic generating elements control the magnetic pieces to move along the radial direction so as to adjust the focal length of the intraocular lens, the magnetic pieces are arranged at the outer edge of the intraocular lens, so that the focal length adjusting effect of the intraocular lens is good.
4. The invention also provides an intraocular lens adjusting system, which comprises the intraocular lens adjusting device and an eyeglass frame, wherein the wireless signal transmitting element and the image acquisition unit of the intraocular lens adjusting device are arranged on the eyeglass frame, the eyeglass frame is convenient to wear, the two image acquisition units are arranged towards human eyes, and the change of the interpupillary distance of the human eyes can be timely fed back to control the wireless signal transmitting element to transmit electromagnetic waves with adaptive intensity to adjust the focal length of the intraocular lens.
5. The invention also provides a method for controlling the accommodation of an intraocular lens accommodation system, comprising the steps of: the wireless signal transmitting element transmits electromagnetic waves; the wireless signal receiving element receives electromagnetic waves and converts the electromagnetic waves into current so that the electromagnetic generating element generates magnetic force; the electromagnetic generating element and the magnetic element generate attractive force or repulsive force, so that the magnetic element moves along the radial direction of the intraocular lens to drive the intraocular lens to deform and change the focal length of the intraocular lens, the intraocular lens implanted in the human lens capsule can be controlled to change the focal length by controlling the wireless signal transmitting element to transmit electromagnetic waves outside the body, the intraocular lens implanted in the human lens capsule can be controlled by controlling the wireless signal transmitting element to transmit electromagnetic waves outside the body, the adjustment precision is high, the adjustment requirement of the eyes of a human body can be met, the far vision and the near vision of a patient after operation can be clear, and discomfort cannot be caused.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic view of the installation of a wireless signal receiving element, an electromagnetic generating element and a magnetic element in an intraocular lens adjustment device of the present invention.
Fig. 2 shows a schematic diagram of the wireless signal receiving element and the electromagnetic generating element of the intraocular lens adjusting device of the present invention electrically connected by a rectifying, filtering and voltage stabilizing circuit.
Figure 3 shows a schematic view of the structure of an eye frame in an intraocular lens adjustment system of the present invention.
Reference numerals illustrate: 1. a wireless signal transmitting element; 2. a wireless signal receiving element; 21. an electromagnetic generating element; 3. a magnetic member; 100. sclera of eyeball; 200. an intraocular lens; 4. an image acquisition unit; 5. a rectifying, filtering and voltage stabilizing circuit; 6. a spectacle frame.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, the present embodiment provides an intraocular lens adjusting device for adjusting a focal length of an intraocular lens 200, comprising a wireless signal transmitting element 1, a wireless signal receiving element 2, an electromagnetic generating element 21 and a magnetic member 3, wherein the wireless signal transmitting element 1 is for transmitting electromagnetic waves; the wireless signal receiving element 2 is disposed on the eyeball sclera 100, in this embodiment, the wireless signal receiving element 2 is stitched on the eyeball sclera 100 and is in communication connection with the wireless signal transmitting element 1; the electromagnetic generating element 21 is provided on the wireless signal receiving element 2.
As shown in fig. 2, specifically, the wireless signal receiving element 2 and the electromagnetic generating element 21 are electrically connected through a rectifying, filtering and voltage stabilizing circuit 5, in which the rectifying circuit functions to rectify an ac voltage into a unidirectional pulsating voltage, the filtering circuit functions to filter out an ac component in the unidirectional pulsating voltage so that the output voltage is closer to a dc voltage, and the voltage stabilizing circuit functions to automatically keep the dc voltage on the load stable when the ac power source and the load fluctuate, i.e., to supply the dc power source with sufficient power and stable voltage to the load.
The magnetic member 3 is disposed on the intraocular lens 200 near the outer edge of the intraocular lens 200, and corresponds to the position of the electromagnetic generating element 21, the electromagnetic generating element 21 controls the magnetic member 3 to move in the radial direction so as to adjust the focal length of the intraocular lens 200, the magnetic member 3 is disposed at the outer edge of the intraocular lens 200 so that the focal length adjustment effect of the intraocular lens 200 is good, in this embodiment, the electromagnetic generating element 21 and the magnetic member 3 are both provided, and the electromagnetic generating element 21 and the magnetic member 3 are disposed on the equatorial plane of the intraocular lens 200.
According to the intraocular lens adjusting device provided by the embodiment, electromagnetic waves are emitted through the wireless signal emitting element 1, the wireless signal receiving element 2 receives the electromagnetic waves to generate two induced electromotive forces with the same size, the two induced electromotive forces are rectified, filtered and stabilized through the voltage stabilizing circuit respectively to generate two direct current voltages V1 and V2 with the same size, the direct current voltages V1 and V2 respectively drive the electromagnetic generating element 21 to generate magnetic force, and the magnetic force acts on the two magnetic pieces 3 and respectively applies attractive force or repulsive force with the same strength to the two magnetic pieces 3. Upon application of the attractive force, the two magnetic elements 3 pull the intraocular lens 200 away from each other to change the focal length; when a repulsive force is applied, the two magnetic elements 3 press the intraocular lens 200 towards each other, changing the focal length. Meanwhile, the intraocular lens 200 has elasticity, when the wireless signal transmitting element 1 does not transmit electromagnetic waves, the intraocular lens 200 can rebound and recover, so that the intraocular lens 200 can be controlled to change different focal lengths only by controlling the power intensity of the electromagnetic waves transmitted by the wireless signal transmitting element 1, and therefore the focal length of the intraocular lens 200 is adjusted, the response is sensitive, the adjustment accuracy is high, the response is sensitive (millisecond level), and the adjustment requirement of eyes of a human body can be met.
Specifically, the wireless signal transmitting element 1 is a wireless signal transmitting coil, the wireless signal receiving element 2 is a wireless signal receiving coil, the wireless signal transmitting coil is made of a coil wound by platinum iridium alloy wires, when direct current passes through the wireless signal transmitting coil, the electromagnetic generating element 21 is magnetized to generate pulling force or pushing force on the magnetic part 3 on the intraocular lens 200, the larger the direct current in the wireless signal transmitting coil is, the larger the pushing pulling force is, the larger the displacement generated by the intraocular lens 200 is, and the larger the focal length change is; the smaller the DC current in the wireless signal transmitting coil, the smaller the push-pull force, and the smaller the displacement of the intraocular lens 200, and when the DC current in the wireless signal transmitting coil is zero, the displacement of the intraocular lens 200 is zero.
The wireless signal receiving coil is formed by winding two strands of platinum iridium alloy wires insulated from each other, the two strands of coils respectively provide current for the two electromagnetic generating elements 21, the coils are wound into a plurality of turns so as to provide enough voltage and current for the electromagnetic generating elements 21, and the magnetic piece 3 is a permanent magnet, so that magnetism can be kept for a long time and magnetic poles cannot be changed. In this embodiment, the electromagnetic generating element 21 has a long strip shape, the center line of which is on the same straight line with the center line of the magnetic element 3 in the intraocular lens, and the cross section of the electromagnetic generating element 21 is the same as the cross section of the magnetic element 3 in the intraocular lens 200, so that the intraocular lens 200 can be ensured to have only relative displacement at the two ends of the intraocular lens 200 under the action of the electromagnetic generating element 21, and no translation, rotation or tilting of the intraocular lens 200 occurs.
Specifically, the intraocular lens adjusting device provided by the present embodiment further includes an image collecting unit 4, which is configured to collect pupil distance information, where the image collecting unit 4 is in communication connection with the wireless signal transmitting element 1, and the wireless signal transmitting element 1 transmits electromagnetic waves according to the pupil distance information, so that focal length adjustment of the intraocular lens 200 can be more accurate.
This embodiment also provides an intraocular lens adjusting system, including the intraocular lens adjusting device of this embodiment, as shown in fig. 3, this intraocular lens adjusting system still includes eye frame 6, and intraocular lens adjusting device's wireless signal transmitting element 1 and image acquisition unit 4 set up on eye frame 6, and the spectacle frame is convenient for wear, and image acquisition unit 4 is provided with two, all sets up towards the human eye, and the interpupillary distance that feedback human eye that can be timely changes and then controls wireless signal transmitting element 1 and launches the focal length of electromagnetic wave regulation intraocular lens 200 of adaptation intensity.
The embodiment also provides an adjustment control method of an intraocular lens adjustment system, comprising the steps of:
the wireless signal transmitting element 1 transmits electromagnetic waves;
the wireless signal receiving element 2 receives electromagnetic waves and converts the electromagnetic waves into electric current so that the electromagnetic generating element 21 generates magnetic force;
attractive force or repulsive force is generated between the electromagnetic generating element 21 and the magnetic element 3, so that the magnetic element 3 moves along the radial direction of the intraocular lens 200, and the intraocular lens 200 is driven to deform and change the focal length of the intraocular lens 200.
The adjustment control method of the intraocular lens adjustment system provided by the embodiment can control the intraocular lens 200 implanted in the lens capsule of the human body by controlling the wireless signal transmitting element 1 to transmit electromagnetic waves outside the body, has high adjustment precision and sensitive response (millisecond level), can meet the adjustment requirement of eyes of the human body, ensures that the far and near vision of the patient after operation can be clear, and does not generate uncomfortable feeling.
Further, before the step of emitting electromagnetic waves by the wireless signal emitting element 1, the method further comprises the step of collecting pupil distance data by the collecting unit, wherein in the step of emitting electromagnetic waves by the wireless signal emitting element 1, the wireless signal emitting element 1 emits electromagnetic waves according to pupil distance data, and according to the principle that pupil distances are different when eyes observe scenes with different distances, focal length adjustment of the intraocular lens 200 is more accurately adapted.
Further, in the step of transmitting electromagnetic waves by the wireless signal transmitting element 1, when the interpupillary distance data increases, the wireless transmitting coil decreases the power of transmitting electromagnetic waves, and then in the step of receiving electromagnetic waves by the wireless signal receiving element 2 and converting the electromagnetic waves into electric current to cause the electromagnetic generating element 21 to generate magnetic force, the electromagnetic induction intensity received by the wireless signal receiving element 2 decreases, the electric current output to the electromagnetic generating element 21 decreases, the magnetic force generated by the electromagnetic generating element 21 decreases, the attractive force or repulsive force thereof to the magnetic member 3 decreases, the deformation amount of the intraocular lens 200 decreases, and the focal length of the intraocular lens 200 increases;
in the step of transmitting electromagnetic waves by the wireless signal transmitting element 1, when the pupil distance data is reduced, the wireless transmitting coil increases the power of transmitting electromagnetic waves, and then in the step of receiving electromagnetic waves by the wireless signal receiving element 2 and converting the electromagnetic waves into electric current to generate magnetic force by the electromagnetic generating element 21, the electromagnetic induction intensity received by the wireless signal receiving element 2 is increased, the electric current output to the electromagnetic generating element 21 is increased, the magnetic force generated by the electromagnetic generating element 21 is increased, the attractive force or repulsive force to the magnetic element 3 is increased, the deformation amount of the intraocular lens 200 is increased, and the focal length of the intraocular lens 200 is decreased.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. An intraocular lens adjustment device for adjusting the focal length of an intraocular lens (200), comprising:
a wireless signal transmitting element (1) for transmitting electromagnetic waves;
the wireless signal receiving element (2) is arranged on the eyeball sclera (100) and is in communication connection with the wireless signal transmitting element (1);
an electromagnetic generating element (21) provided on the wireless signal receiving element (2);
and the magnetic piece (3) is arranged on the intraocular lens (200) and corresponds to the electromagnetic generating element (21), and the electromagnetic generating element (21) controls the magnetic piece (3) to move along the radial direction so as to adjust the focal length of the intraocular lens (200).
2. Intraocular lens adjustment device according to claim 1, characterized in that it further comprises an image acquisition unit (4) for acquiring pupil distance information, said image acquisition unit (4) being in communicative connection with said wireless signal emitting element (1), said wireless signal emitting element (1) emitting electromagnetic waves in accordance with said pupil distance information.
3. Intraocular lens adjustment device according to claim 1, characterized in that said electromagnetic generating element (21) and said magnetic element (3) are both provided in two, and that said electromagnetic generating element (21) and said magnetic element (3) are arranged on the equatorial plane of said intraocular lens (200).
4. Intraocular lens adjustment device according to claim 1, characterized in that said wireless signal receiving element (2) and said electromagnetic generating element (21) are electrically connected by means of a rectifying, filtering and stabilizing circuit (5).
5. Intraocular lens adjustment device according to any one of claims 1-4, characterized in that said wireless signal transmitting element (1) is a wireless signal transmitting coil, said wireless signal receiving element (2) is a wireless signal receiving coil, and said magnetic element (3) is a permanent magnet.
6. An intraocular lens accommodation system comprising an intraocular lens (200), characterized by further comprising an intraocular lens accommodation device as claimed in any one of claims 1-5.
7. Intraocular lens adjustment system according to claim 6, characterized in that it further comprises an eyeglass frame (6), the wireless signal transmitting element (1) and the image acquisition unit (4) of the intraocular lens adjustment device being arranged on the eyeglass frame (6).
8. A method of controlling accommodation of an intraocular lens accommodation system as claimed in claim 6 or 7 comprising:
the wireless signal transmitting element (1) transmits electromagnetic waves;
the wireless signal receiving element (2) receives the electromagnetic wave and converts the electromagnetic wave into current so that the electromagnetic generating element (21) generates magnetic force;
the electromagnetic generating element (21) and the magnetic element (3) generate attractive force or repulsive force, so that the magnetic element (3) moves along the radial direction of the intraocular lens (200), and the intraocular lens (200) is driven to deform and change the focal length of the intraocular lens (200).
9. The adjustment control method according to claim 8, characterized by further comprising a step of collecting pupil distance data by an acquisition unit before the step of emitting electromagnetic waves by the wireless signal emitting element (1), in the step of emitting electromagnetic waves by the wireless signal emitting element (1), the wireless signal emitting element (1) emits the electromagnetic waves according to the pupil distance data.
10. The adjustment control method according to claim 9, characterized in that in the step of emitting electromagnetic waves by the wireless signal emitting element (1), when the pupil distance data increases, the wireless transmitting coil decreases the power of emitting electromagnetic waves, and then in the step of receiving the electromagnetic waves by the wireless signal receiving element (2) and converting the electromagnetic waves into electric current so as to generate magnetic force by the electromagnetic generating element (21), the electromagnetic induction intensity received by the wireless signal receiving element (2) decreases, the electric current output to the electromagnetic generating element (21) decreases, the magnetic force generated by the electromagnetic generating element (21) decreases so that the attractive force or repulsive force thereof to the magnetic member (3) decreases, the deformation amount of the intraocular lens (200) decreases, and the focal length of the intraocular lens (200) increases;
in the step of transmitting electromagnetic waves by the wireless signal transmitting element (1), when the pupil distance data is reduced, the wireless transmitting coil increases the power for transmitting the electromagnetic waves, then in the step of receiving the electromagnetic waves by the wireless signal receiving element (2) and converting the electromagnetic waves into current to enable the electromagnetic generating element (21) to generate magnetic force, the electromagnetic induction intensity received by the wireless signal receiving element (2) is increased, the current output to the electromagnetic generating element (21) is increased, the magnetic force generated by the electromagnetic generating element (21) is increased, the attractive force or repulsive force of the electromagnetic generating element on the magnetic element (3) is increased, the deformation amount of the intraocular lens (200) is increased, and the focal length of the intraocular lens (200) is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210986590.4A CN117618147A (en) | 2022-08-17 | 2022-08-17 | Intraocular lens adjustment device, system and adjustment control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210986590.4A CN117618147A (en) | 2022-08-17 | 2022-08-17 | Intraocular lens adjustment device, system and adjustment control method |
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| CN202210986590.4A Pending CN117618147A (en) | 2022-08-17 | 2022-08-17 | Intraocular lens adjustment device, system and adjustment control method |
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