EP4076278A1 - Intraokularlinsensystem, intraokularlinse und ziliarkörperimplantat - Google Patents
Intraokularlinsensystem, intraokularlinse und ziliarkörperimplantatInfo
- Publication number
- EP4076278A1 EP4076278A1 EP20842570.2A EP20842570A EP4076278A1 EP 4076278 A1 EP4076278 A1 EP 4076278A1 EP 20842570 A EP20842570 A EP 20842570A EP 4076278 A1 EP4076278 A1 EP 4076278A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ciliary
- signal
- intraocular lens
- eye
- body implant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007943 implant Substances 0.000 title claims abstract description 105
- 230000001886 ciliary effect Effects 0.000 claims abstract description 256
- 210000004240 ciliary body Anatomy 0.000 claims abstract description 129
- 210000003205 muscle Anatomy 0.000 claims abstract description 65
- 230000000694 effects Effects 0.000 claims abstract description 27
- 238000002513 implantation Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims description 43
- 230000003287 optical effect Effects 0.000 claims description 25
- 230000005684 electric field Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 101100408384 Danio rerio piwil2 gene Proteins 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 25
- 230000004308 accommodation Effects 0.000 description 15
- 230000003595 spectral effect Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 208000002177 Cataract Diseases 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 210000001525 retina Anatomy 0.000 description 3
- 238000010897 surface acoustic wave method Methods 0.000 description 3
- 206010016654 Fibrosis Diseases 0.000 description 2
- 239000012620 biological material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 210000004087 cornea Anatomy 0.000 description 2
- 238000002567 electromyography Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000004761 fibrosis Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
- 230000001364 causal effect Effects 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Classifications
-
- 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 or corneal implants; 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
-
- 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
- A61F2/48—Operating or control means, e.g. from outside the body, control of sphincters
- A61F2/482—Electrical means
-
- 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 or corneal implants; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
- A61F2002/1682—Intraocular lenses having supporting structure for lens, e.g. haptics having mechanical force transfer mechanism to the lens, e.g. for accommodating lenses
-
- 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 or corneal implants; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
- A61F2002/16901—Supporting structure conforms to shape of capsular bag
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/009—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof magnetic
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
- A61F2250/001—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting a diameter
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
Definitions
- Intraocular lens system Intraocular lens system, intraocular lens and ciliary body implant
- the present invention relates to an intraocular lens system, an intraocular lens and a ciliary body implant.
- the invention thus lies in particular in the field of intraocular lenses, in particular the biomechanically and / or electro-mechanically accommodatable intraocular lenses.
- Intraocular lenses are known in the prior art, which have a biomechanical accommodability, i.e. the refractive effect of the IOL can be changed by exerting mechanical force using muscle tissue and adapted to the desired accommodation.
- IOLs are often implanted in the capsular bag of the eye, since this has a low complication rate compared to other implantation sites, and the necessary surgical techniques are mature, and there are numerous concepts for such biomechanical IOLs.
- the concepts known in the prior art use the naturally triggering force for accommodation, namely the change in diameter of the ciliary body or ciliary muscle, only indirectly. The decisive force transmission takes place rather via the zonular fibers on the elastic capsular bag.
- the elasticity of the capsular bag is very different in different eyes or patients and can change, for example, due to wound healing processes (e.g. fibrosis) after a cataract operation and due to further cell growth (cataract).
- the treatment of the cataract can also change the capsular bag and, in particular, its elasticity. It is therefore often difficult to find a generally valid, well-functioning biomechanical arrangement that is equally suitable for many individual differences in the population and, in addition, the temporal change in the biological material used for the function. To make matters worse, the properties of the biological material used for the function typically cannot be measured prior to cataract surgery, which is why an adaptation to individual circumstances is not possible.
- conventional IOL implants typically have to stretch the original capsular bag in order to reduce / avoid fibrosis, which requires a large implant volume and makes small incision sizes difficult.
- biomechanical, accommodatable IOLs which are implanted outside the capsular bag with direct contact with the ciliary muscle in the sulcus or in the vicinity of the sulcus.
- the force of the ciliary muscle is converted directly into a mechanical movement or hydraulic deformation in order to create accommodation for the biomechanical implant.
- These implants typically have contact with the iris or perform relative movements to critical tissue, which, for example, can detach pigments from the iris, which can then, for example, hinder the outflow of eye fluid.
- So-called sulcus IOLs show an increased complication rate due to this and other effects.
- US 2013/226293 A1 describes an electroactive IOL that can be mechanically connected directly to the ciliary muscle. Such an IOL therefore does not allow complete implantation in the capsular bag.
- WO 2015/138507 A1 discloses a sensor cell for implantation in the ciliary muscle, the sensor cell being pressure-sensitive or electromyographical and having a microchip for active, wireless transmission of the signal to an optically effective implant. Since the sensor cell is designed to be active, it requires a suitable power supply and must be hermetically sealed from its surroundings.
- US 2014 / 0156000A1 describes an electro-active ophthalmic lens with an electromyography sensor, a processor and an electro-active optical element.
- the electromyography sensor is designed to detect an electrical field in the ciliary muscle that is proportional to the force exerted by the ciliary muscle and to generate a sensor signal indicative of this.
- the electromyographic signals of the electrical fields in the ciliary muscle are typically very weak and also difficult to separate from the electromyographic signals from other, larger muscles (for example the muscles used to move the eye), which makes it difficult to use these signals reliably. It is the object of the present invention to provide an intraocular lens system which avoids the disadvantages inherent in conventional IOLs.
- this object is achieved by an intraocular lens system, a target body implant, an intraocular lens and a method having the features of the respective independent claims.
- Advantageous embodiments are given in the subclaims and in the description.
- the invention in a first aspect, relates to an intraocular lens system for implantation in an eye.
- the intraocular lens system comprises a ciliary body implant with a passive ciliary signal element, the ciliary body implant being designed and implantable in the eye such that the ciliary signal element provides a ciliary signal as a function of a movement of the ciliary muscle of the eye.
- the intraocular lens system comprises an intraocular lens which has a sensor element for receiving the ciliary signal.
- the ciliary body implant and the intraocular lens are designed separately from one another and the intraocular system is also designed to control a refractive effect of the intraocular lens as a function of the ciliary signal received from the sensor element.
- the invention relates to a ciliary body implant for an intraocular lens system for implantation in an eye, the ciliary body implant having a passive ciliary signal element and being designed to provide a ciliary signal as a function of a movement of the ciliary muscle of the eye by means of the ciliary signal element.
- the invention relates to an intraocular lens for an intraocular lens system for implantation in an eye, the intraocular lens having a sensor element for receiving a ciliary signal and being designed to control a refractive effect of the eye as a function of the received ciliary signal.
- the invention in a further aspect, relates to a method for implanting an intraocular lens system into an eye.
- the method comprises implanting a ciliary body implant with a passive ciliary signal element in the eye such that the ciliary signal element provides a ciliary signal as a function of a movement of the ciliary muscle of the eye.
- the method also includes implanting an intraocular lens in the eye, the intraocular lens having a sensor element for receiving the ciliary signal.
- the ciliary body perimplantat and the intraocular lens are formed separately from one another and the intraocular system is also designed to control a refractive effect of the intraocular lens as a function of the ciliary signal received from the sensor element.
- an intraocular lens system is a system which has a biomechanically and / or electroactively accommodatable intraocular lens (IOL) and one or more other elements for detecting the will to accommodate, such as a ciliary body implant in particular, and for implementing the accommodation of the IOL ciliary body implant includes.
- the intraocular lens system (IOL system) according to the invention is constructed in several parts, the several parts of the IOL system being present as separate parts and in particular being implantable in the eye separately from one another.
- the several parts of the IOL system, in particular the IOL and the ciliary body implant preferably do not require any direct mechanical and / or hydraulic and / or “wired” electrical connection between one another.
- the ciliary body implant is an implant which can be implanted in the eye and which at least partially follows the movements of the ciliary muscle. It is not absolutely necessary for the ciliary body implant to be implanted and / or arranged directly in and / or on the ciliary muscle. Rather, indirect mechanical contact between the ciliary body implant and the ciliary muscle of the eye can be sufficient as long as the ciliary body implant at the implanted site at least partially follows the movements of the ciliary muscle.
- the ciliary body implant preferably fulfills the function of generating a signal from the movements of the ciliary muscle, which signal indicates the accommodation will and can be used for the accommodation of the IOL or the eye.
- the ciliary body implant can be arranged in direct contact with the ciliary muscle and / or with the ciliary body.
- the ciliary body implant can be arranged in direct mechanical contact with the ciliary body and can be in indirect contact with the ciliary muscle via the ciliary body.
- the ciliary signal element is a passive signal transmitter which is integrated into the ciliary body implant and / or connected to it and designed for this purpose be to provide a signal for the indication of the will to accommodate depending on a movement of the ciliary muscle of the eye. This can take place, for example, in that the ciliary signal element at least partially follows the movements of the ciliary muscle and / or that movements of the ciliary muscle exert a force on the ciliary signal element and / or otherwise exert an influence on the ciliary signal element.
- the ciliary signal element optionally follows the movements of the ciliary muscle at least partially means that a deflection of the ciliary signal element or its change in position in the eye does not necessarily have to be of the same amplitude and / or in the same direction as the deflection of the ciliary muscle that the Deflection and / or change in position of the ciliary muscle caused. Rather, it can be sufficient if the ciliary signal element follows the movements of the ciliary muscle in such a way that the ciliary signal element provides a signal which allows the movement of the ciliary muscle to be recognized at least qualitatively.
- the signal provided by the ciliary signal element is preferably proportional, preferably directly proportional to the amplitude of the causing movement of the ciliary muscle.
- the ciliary signal element is designed to be passive. This means that the ciliary signal element does not require any energy supply, such as a power supply. This preferably also means that the ciliary signal element does not have any circuits which actively generate a signal. Rather, the ciliary signal element is designed to generate the signal in a passive manner, for example by causing a reaction in the sensor element by an electrical, in particular special electrostatic, and / or (permanent and / or static) magnetic field emanating from the ciliary signal element. For example, the signal at the position of the sensor element can be caused by the fact that the ciliary signal element moves and the electrical and / or magnetic field emanating from the ciliary signal element changes at the position of the sensor element.
- the signal can be provided in a passive manner in that electromagnetic radiation incident on the ciliary signal element, such as light in the visible and / or invisible spectral range, is at least partially reflected and / or scattered and / or refracted by the ciliary signal element to the sensor element and / or flexed.
- the ciliary body implant preferably has a plurality of passive ciliary signal elements which can be arranged at a distance from one another in mechanical contact with the ciliary muscle and / or with the sulcus.
- the IOL is an accommodatable IOL, particularly preferably a biomechanical and / or an electroactively accommodatable IOL.
- an accommodation of the eye can take place by means of a change in the refractive effect of the IOL in the eye.
- the refractive effect can preferably be changed by exerting a mechanical force on the IOL or at least on part of the IOL.
- the IOL can preferably be designed in such a way that it can actively bring about a change in the refractive effect of the IOL.
- the intraocular lens can preferably be implanted in the capsular bag of the eye.
- the sensor element is preferably designed to be active and preferably has a suitable energy supply, in particular a power supply such as a battery and / or a rechargeable battery and / or a photovoltaic element, which enables the active operation of the sensor element.
- the sensor element can receive the ciliary signal and optionally transmit other signals.
- the sensor element can preferably be designed to transmit a signal pulse and to detect an echo thrown back by the ciliary signal element as a ciliary signal.
- the sensor element can preferably be designed to transmit the signal pulse in the form of an optical signal pulse and / or as a radio signal pulse.
- the fact that the interaction between the ciliary signal element and the sensor element controls the refractive effect of the IOL means that a change in the refractive effect of the IOL preferably follows a change in the interaction between the ciliary signal element and the sensor element, in particular a change in the magnetic interaction between the ciliary signal element and the sensor element.
- a movement of the ciliary muscle can preferably be used to control the refractive effect of the IOL and particularly preferably to provide the force for changing the refractive effect of the IOL.
- the refractive effect of the intraocular lens is preferably controlled as a function of a change in the ciliary signal at the position of the sensor element in the eye.
- the invention offers the advantage that the intraocular lens system can be provided with a passive ciliary body implant. This offers the advantage that there is no energy storage device such as a rechargeable battery and / or a battery in the ciliary body. must be provided per-implant and accordingly there is also no need to replace or exchange such an energy storage device.
- the ciliary body implant can preferably be manufactured from electrically passive materials and the manufacturing effort and / or manufacturing costs can thereby be kept low.
- biocompatible materials and / or materials that are stable in the vicinity of the implant can be used for the production of the ciliary body perimplantats, as a result of which the risk of complications can be reduced.
- the invention also offers the advantage that the IOL system can be implanted in an eye in such a way that there is no direct contact between the IOL system and the iris and / or no relative movement between the IOL system, in particular the ciliary body implant, and critical tissue of the eye is required. In this way, complications can be avoided, since the IOL system does not, for example, detach any pigments from the iris and thus there is no obstacle to the drainage of the eye fluid through the IOL system. Consequently, the complication rate can be reduced by the IOL system according to the invention in comparison to conventional accommodatable IOLs.
- the invention offers the advantage that the accommodatable IOL can be designed in a compact design and, in particular, the IOL can be implanted in the capsular bag and is a preferred embodiment, which also favors a low rate of complications.
- This is also favored by the fact that with an IOL system according to the invention no direct mechanical and / or electrical connection between the ciliary body implant and the IOL is required and accordingly no mechanical connection and no electrical conductors necessarily from the IOL through the capsular bag must be guided to the ciliary body implant. This is advantageous because damage to the capsular bag and any associated complications can be avoided or reduced.
- this offers the advantage that it is sufficient to implant only the IOL in the capsular bag, but there is no need or need to implant the ciliary body implant in the capsular bag. In this way, an incision in the capsular bag required for implantation of the IOL into the capsular bag can be kept small.
- the invention offers the advantage that electromyographic signals based on electrical fields in the ciliary muscle do not have to be used to provide the ciliary signal, which are typically very weak and are superimposed by other electrical fields. This offers the advantage that there is no need for complex isolation and / or processing of an electromyographic signal, for which a potential-free instrumentation amplifier with a large input resistance is typically required.
- the ciliary body implant can preferably be implanted in the eye in such a way that the ciliary signal element is in mechanical contact with the ciliary body and / or with the ciliary muscle and / or with the sulcus.
- the ciliary body implant can be attached directly to and / or in the ciliary body and / or positioned in the sulcus and / or near the sulcus. This offers the advantage that mechanical contact between the ciliary body implant and the iris can be avoided in a particularly reliable manner.
- the method for implanting the IOL system is preferably carried out in such a way that the ciliary signal element is in mechanical contact with the ciliary muscle and / or with the ciliary body and / or with the sulcus.
- the ciliary signal element preferably has a permanent magnet or is designed as such.
- the ciliary signal element is particularly preferably designed to provide the ciliary signal by means of a magnetic field at the position of the sensor element in the eye.
- This offers the advantage that the ciliary signal can be provided in a simple and reliable manner with passive means, for example with a permanent magnet.
- this offers the advantage that the surrounding tissue, such as the zonular fibers and / or the capsular bag, do not cause any relevant weakening and / or falsification of the magnetic field and accordingly the ciliary signal is not significantly weakened and / or falsified in this way.
- the ciliary signal element has an electrode and / or a piezo element or is designed as such.
- the ciliary signal element is particularly preferably designed to provide the ciliary signal by means of an electric field at the position of the sensor element in the eye. This offers the advantage that the ciliary signal can be reliably and passively made available with simple means, for example as an electric field of electrostatic charges on the electrode.
- the electric field can be provided by means of a piezo element by an action of force by the ciliary muscle and / or the ciliary body on the piezo element.
- a change in the electrical field can then be caused at the position of the sensor element.
- the ciliary signal element has one or more surface wave structures and is designed to change a characteristic property of the surface wave structure (s) as a function of a mechanical action on the ciliary signal element.
- the one or more surface acoustic wave structures can serve, for example, to receive an incident electromagnetic wave, such as a radio signal, and to emit or reflect it again in a different manner.
- the way in which the incident electromagnetic wave is changed is determined by the characteristic property of the surface acoustic wave structure in that the surface acoustic wave structure preferably at least partially guides and reflects the incident electromagnetic wave.
- the change in the characteristic property of the respective surface wave structure can be influenced by a mechanical action on the ciliary signal element, so that a force acting on the ciliary signal element by the ciliary muscle and / or ciliary body, such as, for example, a compressive and / or tensile and / or shear force, leads to a change in the surface wave structure, which in turn changes the characteristic property of the surface wave structure.
- a ciliary signal can be provided by the ciliary signal element, which corresponds to a reflection of an incident electromagnetic wave that depends on the force exerted by the ciliary muscle and / or ciliary body on the ciliary signal element.
- the ciliary signal element has an optical element or is designed as such.
- the ciliary signal element is particularly preferably designed to provide the ciliary signal by means of an optical signal at the position of the sensor element in the eye, with the optical element preferably being a mirror and / or a diffractive structure and / or a holographic io see structure.
- This offers the advantage that the ciliary signal can be provided passively as an optical signal.
- an optical signal can be sent from the sensor element and / or another radiation source in the eye to the ciliary signal element, which then reflects and / or scatters and / or diffracts the optical signal to the sensor element.
- the ciliary signal element can preferably be designed in such a way that the ciliary signal is provided by means of reflection and / or scattering and / or diffraction of light which is incident on the eye.
- a small portion of the incident light can be used to provide the ciliary signal without significantly impairing the transmission of the eye, ie the optical components of the eye for transmitting the light to the retina.
- light in a very narrowly limited spectral range can be diverted to the sensor element for this purpose.
- the ciliary signal element can be designed to provide light as a ciliary signal in a spectral range that is invisible to the eye, such as, for example, in the infrared spectral range.
- the ciliary signal is preferably provided in such a way that an effect of the ciliary signal on the ciliary signal element can be detected based on a property of the ciliary signal provided on the sensor element, for example based on a change in the angle of incidence and / or or a signal strength or intensity and / or a wavelength of the ciliary signal.
- the sensor element preferably has a magnetic coil and is particularly preferably designed to inductively receive the ciliary signal.
- a ciliary signal element is particularly preferably used, which has a permanent magnet or is designed as such. This offers the advantage that the magnetic field generated by the permanent magnet can be used to provide the ciliary signal. This in turn offers the advantage that a passive provision of the ciliary signal is possible in a simple manner. Furthermore, this offers the advantage that the surrounding tissue in the eye does not cause any significant weakening of the magnetic field and thus the ciliary signal can be reliably provided at the position of the sensor element.
- the sensor element preferably has an electrode and is particularly preferably designed to apply the ciliary signal capacitively receive.
- the ciliary signal element can also have an electrode or be designed as such.
- the electrode of the ciliary signal element and the sensor element can together form a capacitor.
- a change in the position of the ciliary signal element due to a movement of the ciliary muscle and / or ciliary body can preferably lead to a change in the capacitance of the capacitor, on the basis of which the causal movement of the ciliary muscle can be reliably detected and a corresponding accommodation intention of the eye can be reliably recognized.
- the sensor element has an electromagnetic resonant circuit or is designed as such.
- one or more components of the ciliary signal can also contribute to the function of the resonant circuit.
- one electrode of the ciliary signal element can serve as a capacitor plate of the capacitor of the resonant circuit.
- the sensor element is particularly preferably designed to receive the ciliary signal inductively and / or capacitively. Particularly before given a ciliary signal element is used which has a permanent magnet and / or an electrode or is designed as a permanent magnet or as an electrode.
- the inductive and / or capacitive properties of the resonant circuit can be changed by changing the position of the target signal element and the changes can be detected very sensitively and precisely.
- a ciliary signal element designed as an electrode can form the capacitor of the resonant circuit of the sensor element together with a further electrode in the sensor element.
- a change in position of the electrode of the ciliary signal element can then lead to a change in the capacitive property of the resonant circuit and enable reliable and sensitive detection of the causing change in position of the ciliary signal element.
- This therefore offers the advantage that a change in the ciliary signal and, accordingly, a change in the position of the ciliary muscle can be detected particularly sensitively and, accordingly, an intention to accommodate the eye can be identified particularly reliably.
- the sensor element can preferably have a transceiver unit for radio signals or be designed as such.
- the sensor element is designed to transmit and receive radio signals.
- Such a sensor element with one or more ciliary signal elements is particularly preferred. elements combined, which each have one or more surface wave structures for the changed reflection of the radio signal emitted by the sensor element. If the sensor element then sends a radio signal to the ciliary signal element, the radio signal propagates in the surface wave structure, is thereby modified according to the characteristic properties of the surface wave structure and reflected back to the sensor element.
- the sensor element can determine whether there is a force acting on the ciliary signal element through the ciliary muscle and / or ciliary body and detect the possible presence of a corresponding willingness to accommodate by the eye.
- the ciliary body implant preferably has a plurality of passive ciliary signal elements which are elastically connected to one another and are arranged in the ciliary body implant in the form of a ring or a segment of a circle and / or opposite one another relative to the optical axis of the intraocular lens.
- the ciliary body implant is particularly preferably designed in the shape of a ring or a segment of a circle and a diameter and / or radius of curvature of the ciliary body implant can be changed by means of the elastic connections between the ciliary signal elements and preferably adapted to the ciliary body and / or ciliary muscle.
- the dimensions of the ciliary body implant can be adapted to the inner circumference of the ciliary body and can be arranged with a correspondingly precise fit in and / or on the ciliary body and / or on the sulcus.
- the ciliary body implant can preferably be implanted in the eye in such a way that there is no direct mechanical contact between the ciliary body implant and the iris of the eye. This offers the advantage that complications can be avoided, in particular those that arise due to contact between an IOL and the iris and / or a relative movement of an IOL to sensitive tissue. In particular, the risk of pigments being released from the iris and a resulting obstruction of the outflow of the eye fluid can be avoided.
- the intraocular lens preferably has an optically transparent lens body and at least one extension on and / or in which the at least one sensor element is arranged.
- the extension preferably has a haptic or is designed as such.
- the at least one extension can be, for example, extend radially outward from the lens body.
- the lens extension can be formed lying in the same plane as the Linsenkör by.
- the extension offers the advantage that the sensor element can be arranged in and / or on the IOL without the sensor element covering part of the aperture of the IOL.
- the sensor element is preferably accommodated in the haptic.
- the haptic is preferably designed in such a way that the lens body can be easily aligned and fixed in the capsular bag.
- the haptic offers the possibility of assigning one or more sensor elements in and / or on the haptic and correspondingly also to fix and position the sensor elements with the haptic in the eye.
- the refractive effect of the intraocular lens is preferably controlled by the IOL system moving two or more Alvarez plates in the intraocular lens relative to one another as a function of the ciliary signal.
- the refractive effect of the intraocular lens can preferably be controlled in that the IOL system changes a shape of a membrane in the intraocular lens as a function of the ciliary signal.
- This embodiment can be advantageous in particular for liquid-filled lenses in which the geometric arrangement of the liquid and thus the lens shape can be changed by means of the membrane.
- the refractive effect of the intraocular lens can preferably be controlled by the IOL system changing a distance between two optical components of an optical doublet in the intraocular lens as a function of the ciliary signal.
- the refractive effect of the intraocular lens can preferably be controlled by the IOL system changing the shape of the intraocular lens as a function of the ciliary signal, which can be particularly advantageous for thin and / or flexible lenses.
- other mechanisms can also be used which enable a reliable change in the refractive effect of the lens with little effort.
- the refractive effect of the intraocular lens can preferably be controlled by the IOL system changing a refractive index of the IOL as a function of the ciliary signal.
- FIG. 1 shows an eye in a schematic representation with an implanted intraocular lens system according to a preferred embodiment in a longitudinal sectional view and in a cross sectional view;
- FIGS. 2A and 2B show a ciliary body implant according to a preferred embodiment in different states of accommodation
- FIG. 4 shows an intraocular lens system according to a further preferred one
- FIG. 5 shows a ciliary body implant according to a preferred embodiment
- Fig. 1 shows a schematic representation of an eye 10 with an implanted intraocular lens system 30 (IOL system) according to a preferred Aussper approximately form in a longitudinal sectional view (left) along a sectional plane in wel cher the optical axis 100 of the eye 10 runs, and one Cross-sectional view (right) perpendicular to optical axis 100.
- the longitudinal sectional view of the eye 10 reveals the cornea 12 and the iris 14 of the eye 10, as well as the ciliary muscle or ciliary body 16 lying behind it, the zonular fibers 18 and the empty capsular bag 22, as well as the location of the removed natural lens 20 of the eye 10.
- FIG. 1 is also divided into two parts in the vertical direction, the upper part of the longitudinal sectional view and the cross-sectional view showing the eye 10 in a first accommodated state and the lower part showing the eye 10 in a second accommodated state.
- the first accommodated state can be, for example, a disaccommodated state of the eye, for example for distant accommodation.
- the second accommodated state can be, for example, a start of the accommodated state of the eye 10, for example for a near accommodation.
- FIG. 1 shows the implanted intraocular lens system 30, which is formed in several parts and has a ciliary body implant 32 and an intraocular lens (IOL) 34, the ciliary body implant 32 and the IOL 34 being formed separately from one another.
- IOL intraocular lens
- the ciliary body implant 32 has six ciliary signal elements 36, which are elastically connected to one another and are arranged in such a way that the ciliary body implant 32 is designed as an annular structure.
- the ciliary signal elements 36 are connected by means of mechanical spring elements 38.
- the elastic connection of the ciliary signal elements 36 is designed in such a way that compressing and stretching the ciliary body implant 32 in the radial direction is enabled so that the ciliary body implant 32 can follow the movements of the ciliary muscle 16 when the eye 10 is accommodated or in a non-accommodated one State passes.
- the ciliary signal elements 36 are designed as permanent magnets and are arranged in such a way that all ciliary signal elements 36 are polarized identically in the radial direction.
- all ciliary signal elements 36 can be arranged in such a way that their magnetic south pole points radially inward and their north pole points radially outward.
- the ciliary signal elements 36 can also be arranged in this way be that their magnetic north pole points radially inwards and the south pole radially outwards.
- the ciliary body implant 32 is implanted with direct mechanical contact with the ciliary body in the sulcus of the eye 10 or on the sulcus of the eye 10 outside the capsular bag 22, so that a movement of the ciliary muscle 16 is transmitted via the ciliary body to the ciliary body implant 32 and the ciliary body implant accordingly follows the movements of the ciliary muscle 16 by stretching or compressing.
- the ciliary body implant 32 can be compressed or stretched by the ciliary muscle 16 or the ciliary body in such a way that the diameter of the ciliary body increases or decreases, so that the ciliary body implant 32 is always on the inside of the ciliary body or on the sulcus is present.
- the IOL 34 is arranged within the capsular bag 22 and has a lens body 40 and two extensions 42 which contain a haptic.
- a sensor element 44 is arranged in each of the two extensions 42.
- the IOL 34 can also have only one or more than two extensions 42, in each of which one or more sensor elements 44 are arranged.
- the plurality of extensions 42 preferably form a haptic.
- the sensor elements 44 each have a magnetic coil in which an electrical current or another electrical signal can be induced by the magnetic field provided by an adjacent ciliary signal element 32, which can then be detected as a ciliary signal by means of the sensor element 44. If the position of the adjacent ciliary signal element 32 changes relative to the sensor element 44, in particular due to a movement of the ciliary muscle and / or the ciliary body, this leads to a change in the current induced by the magnetic field of the ciliary signal element 32 in the sensor element 44 and, accordingly, to a change in the current Ciliary signal.
- the ciliary body implant 32 and the IOL 40 are preferably arranged such that each sensor element 44 is arranged adjacent to a ciliary signal element 36 in the radial direction in order to achieve the greatest possible interaction between the sensor element 44 and the neighboring ciliary signal element 36. It is advantageous if, as in the embodiment shown, the ciliary body implant 36 has a plurality of ciliary signal elements 36, in particular more than two ciliary signal elements 32, since this facilitates the arrangement of the ciliary body implant 32 and the IOL 34 with respect to one another during implantation such that a ciliary signal element 36 is arranged adjacent to the respective sensor elements 44 and thus the implantation process is simplified.
- the IOL system 30 enables the refractive effect of the eye 10 to be changed as a function of the ciliary signal.
- the IOL system is preferably designed in such a way that it can change the refractive effect of the IOL 34 as a function of the ciliary signal in such a way that this corresponds to the recognized willingness to accommodate, which is attributed to the detected movement of the ciliary muscle 16.
- the implanted IOL system 30 thus offers the possibility of changing the refractive power of the IOL 34 via movements of the ciliary muscle 16 and / or the ciliary body and in this way to accommodate or disaccommodate the eye.
- the eye 10 is shown in a first accommodated state, which represents weak accommodation for remote accommodation.
- the ciliary muscle 16 is relaxed and accordingly only a small force is exerted by the ciliary muscle 16 via the ciliary body on the IOL 34, so that the IOL 34 is diametrically relaxed and has a lower refractive power than in a highly accommodated state.
- the ciliary body implant 32 is also stretched or relaxed and adapts to the inner diameter of the ciliary body, so that the ciliary body implant 32 also has a large diameter (relative to the diameter in the accommodated state of the eye).
- the eye 10 is shown in a second accommodated state, which represents a strong accommodation, for example for near accommodation.
- the ciliary muscle 16 is tense, as a result of which a radially inwardly acting force is exerted on the ciliary body implant 32 and, via the ciliary body implant 32, on the IOL 34.
- the IOL system 30 indirectly applies a force at least to the IOL 34 as a function of the ciliary signal, whereby the refractive power of the IOL 34 is increased so that the eye 10 accommodates more.
- FIG. 2A shows a schematic illustration of a ciliary body implant 32 according to the preferred embodiment shown in FIG.
- the ciliary body implant 32 is shown in a radially compressed or compressed form, for example in the accommodated state.
- the left side shows the ciliary body implant 32 in a relaxed or stretched form, for example in a weakly accommodated state of the eye 10.
- FIG. 2A also shows the sensor elements 44 located radially inside the ciliary body implant 32, which are provided by the respectively adjacent ciliary signal element Ciliary signal received. Due to the compression or relaxation of the ciliary body implant 32, the ciliary signal provided at the position of the sensor element 44 changes, so that the sensor element 44 or the IOL system 40 moves the ciliary muscle based on the respective changes in the ciliary signal and, accordingly, a willingness to accommodate of the eye 10 can determine.
- FIG. 2B illustrates the movement of the ciliary body implant 32 and the resulting change in the relative position of the ciliary signal elements 32 to the sensor elements 44 and the resulting change in the ciliary signal on the basis of a superimposed representation of the IOL system in a compressed state (inside) and in a relaxed state (outside) .
- FIG. 3 shows the IOL system 30 according to the preferred embodiment explained in the previous figures in two different rotational orientations or angular positions relative to the IOL 34 achieve and accordingly to maximize an amplitude of the ciliary signal, a precise radially adjacent positioning of one of the ciliary signal elements 36 to the respective sensor elements 44 is advantageous.
- FIG. 4 shows an IOL system 30 according to a further preferred embodiment.
- the ciliary body implant has a ciliary signal element 32 designed as an optical element.
- the sensor element 44 formed in the IOL 34 behind the iris is designed as an optical sensor.
- the IOL 34 has a plurality of volume hologram elements 48 which are arranged and designed in such a way that they reflect a (small) portion of the light incident into the eye 10 to the ciliary signal element 36. According to the embodiment shown, the light is reflected by the volume holographic elements 48 via a further reflector element 50 formed in or on the IOL 34.
- the ciliary body implant 36 can, for example, be designed as a mirror or have such a mirror.
- the sensor element 44 can, for example, have a photodetector, such as a CCD and / or a CMOS detector and / or a photodiode, the photodector being designed to detect light from the light reflected by the volume hologram elements 48 and the reflector element 50, and preferably to convert it into an electrical signal.
- the volume hologram elements 48 can be designed, for example, as a variation of the refractive index of the IOL 34 and can be integrated into the lens body 40 of the IOL.
- the volume hologram elements 48 are preferably designed to reflect light in a very narrow wavelength range with high efficiency and to transmit light in other wavelength ranges.
- the volume hologram elements 48 are preferably designed to reflect light in a spectral range or with such a wavelength that is anyway not visible to the eye, i.e. for the retina, for example light in the infrared spectral range.
- a reflection of light in the ultraviolet spectral range can preferably also be used, provided that the lens 20 and the IOL 34 are transparent to the wavelength of the ultraviolet light.
- the ciliary signal element 36 is designed as a mirror or comprises one, it can be advantageous to assign it to the upper side of the ciliary body so that it is directed downwards in an upright person. This can reduce or prevent the build-up of deposits on the mirror and the associated impairment of functionality. should be avoided compared to an arrangement of the mirror on the underside of the ciliary body with an upward orientation.
- the functionality of the IOL system 30 is based on the fact that a change in the distance of the ciliary signal element 36 relative to the sensor element and / or another change in position of the ciliary signal element 36 caused by a movement of the ciliary signal element leads to a change in the luminous flux reaching the sensor element and this change as Tariff signal can be used.
- the ciliary signal or its change can consist in the fact that the position at which the reflected light strikes the sensor element or the photodetector changes when the ciliary signal element 36 is moved.
- the sensor element 44 can have a position-sensitive photodetector or a two-dimensional detector array for this purpose.
- the change in position of the ciliary signal element 36 can change the intensity or amount of light of the light striking the sensor element 44 and a ciliary signal can be provided based on this.
- FIG. 4 also shows two exemplary beam paths 104 of light falling into the eye. These indicate that the light which collimates, for example, through the pupil into the eye 10 is reflected by the volume hologram elements 48 onto the reflector element 50 and from there is further reflected onto the ciliary signal element 36.
- the ciliary signal element 36 in turn reflects the light to the sensor element 44, which then detects the light and determines a ciliary signal therefrom. Because the sensor element 44 is arranged behind the iris 14, the direct incidence of light on the sensor element 44, ie light that was not reflected by the volume hologram 48 and the reflector element 50, can be avoided and a corruption of the ciliary signal caused by this can be avoided become.
- FIG. 5 shows a ciliary body implant 32 according to a preferred embodiment.
- the ciliary body implant 32 has a total of seven ciliary signal elements 36, each of which is designed as a mirror element.
- the ciliary body implant 32 is shown in a stretched state, for example with a relaxed ciliary muscle, and on the right side in a compressed or compressed state, for example with a tense ciliary muscle.
- the upsetting and relaxation of the ciliary body implant 32 can occur under compression or relaxation of the mechanical spring elements 38, via which the ciliary signal elements 36 are connected to one another.
- the ciliary body implant 32 is designed in such a way that it can be arranged on the inner surface of the ciliary body and / or on the sulcus, so that the reflecting surfaces are directed inward, i.e. towards the optical axis of the eye.
- the ciliary body implant 32 is designed in such a way that in the stretched state, the incident light, as illustrated by the exemplary beam paths 104, partly falls on the ciliary signal elements 36 and is reflected by them, while another part of the incident light hits the areas between the ciliary signal elements 36 and is accordingly not reflected. Because the areas between the ciliary signal elements 36 in the extended state of the ciliary body implant (left in FIG. 5) are larger than in the compressed state (right in FIG. 5), a smaller part of the incident light is incident on the sensor element 44 in the extended state reflected than in the compressed state. In this way, a change in the intensity of the reflected light can be provided as a ciliary signal. It goes without saying that the ciliary body implant 32 according to other embodiments can also have a different number of ciliary signal elements 36 and / or the ciliary body implant can be configured in a different shape, for example ring-shaped.
- IOL system intraocular lens system
- IOL intraocular lens
- IOL intraocular lens
- ciliary signal element ciliary signal element
- mechanical spring element 40 lens body
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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)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019135508.7A DE102019135508A1 (de) | 2019-12-20 | 2019-12-20 | Intraokularlinsensystem, Intraokularlinse und Ziliarkörperimplantat |
| PCT/EP2020/087157 WO2021123258A1 (de) | 2019-12-20 | 2020-12-18 | Intraokularlinsensystem, intraokularlinse und ziliarkörperimplantat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4076278A1 true EP4076278A1 (de) | 2022-10-26 |
Family
ID=74187238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20842570.2A Pending EP4076278A1 (de) | 2019-12-20 | 2020-12-18 | Intraokularlinsensystem, intraokularlinse und ziliarkörperimplantat |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220313422A1 (de) |
| EP (1) | EP4076278A1 (de) |
| CN (1) | CN114828778A (de) |
| DE (1) | DE102019135508A1 (de) |
| WO (1) | WO2021123258A1 (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12318331B2 (en) | 2023-06-22 | 2025-06-03 | Manjinder Saini | Intraocular lens docking station |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0500922A1 (de) * | 1990-09-04 | 1992-09-02 | WILEY, Robert G. | Intraokulare linse variierbarer stärke mit astigmatismuskorrektur |
| US6913620B2 (en) * | 2002-03-29 | 2005-07-05 | Isaac Lipshitz | Intraocular lens implant with mirror |
| US20070118216A1 (en) * | 2005-11-21 | 2007-05-24 | Joel Pynson | Accommodative intraocular lens |
| CA2738222A1 (en) * | 2008-10-15 | 2010-04-22 | Alcon, Inc. | Accommodating intraocular lens |
| DK2593040T3 (en) * | 2010-07-12 | 2016-07-04 | Univ Leuven Kath | bionic eye lens |
| US10098727B1 (en) * | 2011-02-11 | 2018-10-16 | Lensvector Inc. | Tuneable liquid crystal lens intraocular implant and methods therefor |
| US20130226293A1 (en) | 2012-02-23 | 2013-08-29 | Novartis Ag | Accommodative iol - refractive index change through change in polarizability of a medium |
| GB2502881B (en) * | 2012-04-23 | 2016-03-16 | E Vision Smart Optics Inc | Systems, devices, and/or methods for managing implantable devices |
| US9226818B2 (en) | 2012-11-30 | 2016-01-05 | Novartis Ag | Sensors for triggering electro-active ophthalmic lenses |
| GB201314428D0 (en) * | 2013-08-12 | 2013-09-25 | Qureshi M A | Intraocular lens system and method |
| JP2015058141A (ja) * | 2013-09-18 | 2015-03-30 | 株式会社トプコン | 眼内レンズシステム |
| EP3116443A4 (de) | 2014-03-11 | 2017-12-06 | Valdemar Portney | Drahtloses optisches system zur korrektur von presbyopie |
| US10702375B2 (en) * | 2015-09-18 | 2020-07-07 | Vista Ocular, Llc | Electromyographic sensing and vision modification |
| US10254565B2 (en) * | 2016-07-27 | 2019-04-09 | Elwha Llc | Ophthalmic devices and related methods |
-
2019
- 2019-12-20 DE DE102019135508.7A patent/DE102019135508A1/de active Pending
-
2020
- 2020-12-18 WO PCT/EP2020/087157 patent/WO2021123258A1/de not_active Ceased
- 2020-12-18 CN CN202080088093.1A patent/CN114828778A/zh active Pending
- 2020-12-18 EP EP20842570.2A patent/EP4076278A1/de active Pending
-
2022
- 2022-06-16 US US17/842,124 patent/US20220313422A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20220313422A1 (en) | 2022-10-06 |
| WO2021123258A1 (de) | 2021-06-24 |
| DE102019135508A1 (de) | 2021-06-24 |
| CN114828778A (zh) | 2022-07-29 |
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