EP1024766A1 - Intraocular implant device - Google Patents

Intraocular implant device

Info

Publication number
EP1024766A1
EP1024766A1 EP19980950152 EP98950152A EP1024766A1 EP 1024766 A1 EP1024766 A1 EP 1024766A1 EP 19980950152 EP19980950152 EP 19980950152 EP 98950152 A EP98950152 A EP 98950152A EP 1024766 A1 EP1024766 A1 EP 1024766A1
Authority
EP
European Patent Office
Prior art keywords
implant
intraocular
á
rieur
optical
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.)
Withdrawn
Application number
EP19980950152
Other languages
German (de)
French (fr)
Inventor
Olivier Benoit
Gilles Bos
Philippe Crozafon
Claudia Driessens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medicale de Precision S M P S A Ste
Medicale de Precision S M P Ste SA
Original Assignee
Medicale de Precision S M P S A Ste
Medicale de Precision S M P Ste SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CH245797 priority Critical
Priority to CH245797 priority
Application filed by Medicale de Precision S M P S A Ste, Medicale de Precision S M P Ste SA filed Critical Medicale de Precision S M P S A Ste
Priority to PCT/FR1998/002225 priority patent/WO1999020206A1/en
Publication of EP1024766A1 publication Critical patent/EP1024766A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/14Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16Intraocular lenses
    • A61F2/1613Intraocular 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
    • A61F2/1648Multipart lenses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/14Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16Intraocular lenses
    • A61F2/1613Intraocular 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

Abstract

The invention concerns an intraocular implant device comprising: a first front intraocular implant (22) comprising a substantially circular (26) optic part (24) made of a flexible material and a haptic part (34, 36); a second rear intraocular implant (10) comprising a substantially circular optic part (12) made of a flexible material and a haptic part (20, 21) and means (18, 30) for substantially coinciding the optical axes of the first and second intraocular implants after they have been successively set in a patient's eye.

Description

An intraocular implant

The present invention relates to an intraocular implant device.

Intraocular implants are now well known. Intraocular implants can be made in two main types of materials, first called rigid materials such as PMMA and other flexible materials which the best known is marketed under the brand hydrogel.

This second type of material used to make intraocular lenses present the advantage, when used to realize the optical portion of the implant, to allow the folding of the optical portion and consequently to make it possible implanting the implant within the eye through a reduced size incision. It is particularly interesting to develop the intraocular implant through an incision whose effective size is not greater than 4 mm because it turns out that in this case, the incision avoids astigmatism phenomenon resulting from the incision in the cornea of ​​the eye.

When the optical portion of the implant is folded along a diameter to enable insertion into the eye through a smaller incision, the thickness of the implant in its median part plays a considerable role in the outer contour of the element to be introduced through the incision. From a practical standpoint, in the case where the optical part has a diameter of about 6 mm, which is desirable to ensure good optical correction even in the case of a slight displacement of the implant in the eye in view of this thickness, it is practically very difficult to introduce the implant by a truly smaller incision to 4 mm in the case where the optical part has axially a certain thickness. This problem occurs when the power of the implant reaches a certain value that can be set at approximately 20 diopters.

It should be recalled that, currently, the axial thickness of a flexible implant standard optical power is of the order of 1.1 mm.

We understand that it would be advantageous to have implants whose thickness is reduced even if the power of the implant is relatively large. One solution to this problem would be to use flexible materials whose refractive index is higher than the materials currently used. However, this solution is currently an implementation very difficult.

To resolve this problem, an object of the present invention is to provide an intraocular implant device may have a non-negligible power, e.g., greater than 20 diopter power, allowing its implantation through an effective dimension of the incision most equal to 4 mm.

To achieve this object, according to the invention, the intraocular implant device comprises: a first anterior intraocular implant comprising a substantially circular optical part made of a flexible material and a haptic portion, a second posterior intraocular implant comprising a substantially circular optical portion made of a flexible material and a haptic portion and means to substantially coincide the optical axes of the first and second intraocular implants after they have been introduced successively into the eye of a patient.

It is understood that due to the fact that the intraocular implant device consists of two separate implants that can be set up inside the eye in succession, it is possible for a given optical power, using two implants intraocular each having reduced power and therefore also a reduced thickness. Accordingly, the folding of the optical portion of each intraocular implant allows the introduction thereof into the eye through an incision having a dimension actually at most equal to 4 mm.

It is also understood that thanks to the presence of means for aligning the optical axes of the optical parts of the two intraocular lenses, it effectively obtains the equivalent of a single intraocular implant having the common optical axis.

In a preferred implementation, the optical axes of the centering means of the two intraocular lenses are formed by reliefs respectively provided in the central portion of the posterior surface of the anterior implant and the anterior face of the posterior implant .

According to an exemplary implementation, the posterior faces of the anterior and anterior implant of the posterior implant are conjugated. Thus when two implants are placed in the eye, the assembly behaves as a single homogeneous implant whose optical portion is defined by the anterior surface of the anterior implant and the posterior face of the posterior implant.

According to another mode of implementation, the contact between the posterior surface of the anterior implant and the anterior face of the posterior implant is performed only in the central part for centering and on the periphery of the optical parts of the two implants so as to provide sealing in this periphery.

The invention also relates to a set of implementation of an intraocular implant device of the type defined above and which is characterized in that it comprises: means for folding the flexible optical portion of the implant to maintain the folded in order to introduce it into the eye through an incision and to release said implant after insertion into the eye; and means for folding the flexible optical portion of the second implant to hold folded in order to introduce it into the eye through an incision and to release said implant after incision into the eye.

Other features and advantages of this invention will become more apparent from reading the following description of several embodiments of the invention given as non-limiting examples. The description refers to the appended figures in which:

Figures la and lb are respectively a front view and side view of the posterior implant the intraocular implant device; Figures 2a and 2b are respectively a front view and side view of the anterior implant the intraocular implant device; and

Figure 3 is a side view showing the two intraocular implants placed inside the capsular bag of the eye.

As already mentioned, the principle of the invention consists in carrying out the intraocular implant device using two separate intraocular implants, each implant having its own optical portion which is made of a flexible material of the type example hydrogel and its haptic part which, for example, is constituted by two handles. Preferably, the handles are made of a stiff material like PMMA. However, the haptic loops could also be made of flexible material. It will be understood that with this arrangement, each optical part may have a reduced power with respect to the total power that must present the implant device, for example half of the power. It follows that in its central zone, each optical part present a reduced and more precisely sufficiently small thickness to allow easy folding and insertion into the eye through an incision in the thickness of which the length is actually less than 4 mm.

In order to ensure alignment of the optical axes of the two intraocular lenses after their subsequent placement in the eye, it is preferably provided in the central region of the posterior surface of the anterior implant and the anterior face of posterior implant centering means which cooperate with each other.

Also preferably, both faces of the anterior and posterior implants, have means in relief to ensure relative positioning of the two implants when placed in place about their common optical axis.

Referring to the attached figures, will now be described in detail a preferred embodiment of the intraocular implant device.

In Figure 1, there is shown the posterior implant 10 which includes an optical portion 12 of circular shape and is made of a flexible material. The optical portion has an outer diameter D which is for example 5.5 mm and is bounded by two convex surfaces 14 and 16. The anterior surface 14 is provided with a centering pin 18 whose diameter is reduced. In known manner, the posterior implant 10 also includes a haptic portion which is for example constituted by two loops respectively referenced 20 and 22, these handles are preferably made of PMMA, or possibly made of flexible material.

Figures 2a and 2b, one embodiment of an anterior implant is shown 22. The latter comprises an optical portion 24 made of a flexible material whose contour is circular and has a diameter D equal to that of the part optic of the posterior implant. The anterior face of the anterior implant 22 is concave. Preferably, in this embodiment, the posterior face 28 of this implant is convex and said surface corresponds to the shape of the anterior surface 14 of the posterior implant. In its center, the posterior face 28 has a recess 30 for cooperating with the pin 18 of the anterior surface of the implant 10. Preferably, the posterior surface 28 of the anterior implant has a peripheral bead 32 adapted to abut on the periphery of the anterior surface 14 of the posterior implant.

The anterior implant 22 is completed by a haptic portion which may consist of two handles 34 and 36 for reasons to be explained later, the handles 34 and 36 having an angle a "forward" with respect to a plane orthogonal to the optical axis of the implant 22.

In Figure 3, there is shown the anterior implant 22 and the posterior implant 10 successively put in place within the capsular bag 40 of the patient's eye to be treated.

As shown in this figure, the pin 18 of the posterior implant 10 enters the recess 30 of the posterior surface of the anterior implant 22. This ensures that the two optical parts of the two implants have a same optical axis XX ' . It is also seen that the peripheral flange 32 of the posterior surface of the anterior implant rests on the periphery of the anterior surface of the posterior implant. This ensures sealing of the free zone 42 between the posterior surface of the anterior implant and the anterior face of the posterior implant. This avoids the risk of colonization between the two IOLs.

In a particular embodiment corresponding to a diameter of the optical parts equal to 5.5 mm, and for producing an intraocular implant device having a total power of 22 diopters, the posterior implant 10 to the anterior implant 22 have in their central zone of the thicknesses e and e 'which are equal and of the order of 0.7 mm to 0.8 mm.

It will be understood that thanks to the reduced thickness of the central zone of the optical parts of the two implants is as noted in the particular example of the order of 0.7 mm, it is easy for the practitioner to maintain when folded along a diameter of each optical part of intraocular lenses in order to put them in place within the capsular bag through an incision which actually has a length of about 4 mm. It is also possible to successively introduce each implant through a corneal incision of 3.2 mm.

In addition, it should be emphasized that the fact that the optical system is achieved by stacking two lens reduces chromatic and geometric aberrations with respect to an optical system constituted by a single lens. This improves the depth of field and sharpness.

The implementation mode of the intraocular implant device by a surgeon in the eye of a patient is:

After making a corneal incision of length between 3.2 and 4 mm, the surgeon proceeds with the removal of the lens, preferably by phaco emulsification.

The surgeon sets the appropriate two anterior and posterior intraocular implants to achieve the desired total power.

Using forceps or an injector, the practitioner holds folded along a diameter of the optical portion of the posterior implant. Using this instrument, it introduces the implant in the capsular bag through the incision previously made and releases the implant so that it takes its place in the bag. Then, using a similar instrument, it proceeds to the introduction of the anterior implant. With centering means, the anterior implant is positioned correctly in the capsular bag so that both i; plants have a common optical axis, which of course involves the pupil.

In other embodiments, it would be possible to provide the optical parts of intraocular lenses have a convex surface and a substantially planar face, the planar faces being opposite course after the establishment of the two IOLs.

It is also possible to provide a centering of the two optical parts after the establishment of the implants by their periphery. It seems however that the centering solution described in connection with Figures 1 and 2 is more effective because it provides a self-positioning of the second implant.

Claims

1. An intraocular implant, caractérisé in that it comprises: a first antérieur intraocular implant comprising an optical part substantially circular réalisée a flexible and matériau a haptic portion, a deuxième postérieur intraocular implant comprising an optical part substantially circular réalisée a flexible matériau and a haptic portion and means for substantially coà "ncider axes optical first and deuxième après intraocular implants that they have été set up successively in the eye of a patient.
2. An intraocular implant according to claim 1, caractérisé diamètre in that the optical portions of the first and deuxième intraocular implants is at least 5.5 mm égale à .
3. An intraocular implant according to any one of claims let 2 caractérisé in that the optical power of the intraocular lens device is at least égale à 20 diopters and in that 'épaisseur of each intraocular implant, according to its optical axis, is at most 0.8 mm égale à.
4. An intraocular implant according to any one of claims 1 à 3 caractérisé in that the centering means comprise a relief on the face of the postérieure antérieur implant and a conjugué antérieure relief on the face of the postérieur implant.
5. An intraocular implant according to any one of claims 1 à 4 caractérisé postérieure in that the face of the implant is antérieur conjuguée of the face antérieure of postérieur implant.
6. An intraocular implant according to any one of claims 1 ├á 4 caract├⌐ris├⌐ in that the p├⌐riph├⌐rie and the central area of ​​the face post├⌐rieure of ant├⌐rieur implant are conjugu├⌐es of p├⌐riph├⌐rie and the central area of ​​the face of the ant├⌐rieure post├⌐rieur implant, the area of ​​the post interm├⌐diaire face ├⌐rieure of ant├⌐rieur implant n'├⌐tant not in contact with the area of ​​the interm├⌐diaire ant├⌐rieure post├⌐rieur face of the implant.
7. An intraocular implant according to any one of claims 1 à 6 caractérisé in that said implant include means capable à coopérer them for at least one définir prédéterminée relative position of their optical portion about their common optical axis.
8. setting assembly into the eye an intraocular implant device according to any one of claims 1 à 6 caractérisé in that it comprises: means for folding the portion floptical of the implant to maintain pliée order to introduce it into the eye through an incision à and libérer après said implant insertion into the eye; and means for folding the flexible part of the optical deuxième implant to keep pliée order to introduce it into the eye through an incision à and libérer said implant après its incision in the eye.
EP19980950152 1997-10-22 1998-10-16 Intraocular implant device Withdrawn EP1024766A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH245797 1997-10-22
CH245797 1997-10-22
PCT/FR1998/002225 WO1999020206A1 (en) 1997-10-22 1998-10-16 Intraocular implant device

Publications (1)

Publication Number Publication Date
EP1024766A1 true EP1024766A1 (en) 2000-08-09

Family

ID=4234262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980950152 Withdrawn EP1024766A1 (en) 1997-10-22 1998-10-16 Intraocular implant device

Country Status (3)

Country Link
EP (1) EP1024766A1 (en)
JP (1) JP2001520077A (en)
WO (1) WO1999020206A1 (en)

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US8556967B2 (en) 1999-04-09 2013-10-15 Faezeh Mona Sarfarazi Interior bag for a capsular bag and injector
US20060238702A1 (en) 1999-04-30 2006-10-26 Advanced Medical Optics, Inc. Ophthalmic lens combinations
US6767363B1 (en) * 1999-11-05 2004-07-27 Bausch & Lomb Surgical, Inc. Accommodating positive and negative intraocular lens system
US6786934B2 (en) 2001-01-25 2004-09-07 Visiogen, Inc. Biasing element for intraocular lens system
AT414488T (en) * 2001-01-25 2008-12-15 Gholam-Reza Zadno-Azizi Akcommoding intraocular lens system
US7097660B2 (en) 2001-12-10 2006-08-29 Valdemar Portney Accommodating intraocular lens
US7763069B2 (en) 2002-01-14 2010-07-27 Abbott Medical Optics Inc. Accommodating intraocular lens with outer support structure
US7662180B2 (en) 2002-12-05 2010-02-16 Abbott Medical Optics Inc. Accommodating intraocular lens and method of manufacture thereof
US7238201B2 (en) 2003-02-13 2007-07-03 Visiogen, Inc. Accommodating intraocular lens system with enhanced range of motion
US7615056B2 (en) 2003-02-14 2009-11-10 Visiogen, Inc. Method and device for compacting an intraocular lens
US20050131535A1 (en) 2003-12-15 2005-06-16 Randall Woods Intraocular lens implant having posterior bendable optic
US7645300B2 (en) 2004-02-02 2010-01-12 Visiogen, Inc. Injector for intraocular lens system
US7780729B2 (en) 2004-04-16 2010-08-24 Visiogen, Inc. Intraocular lens
US8377123B2 (en) 2004-11-10 2013-02-19 Visiogen, Inc. Method of implanting an intraocular lens
US9636213B2 (en) 2005-09-30 2017-05-02 Abbott Medical Optics Inc. Deformable intraocular lenses and lens systems
CA2673388C (en) 2006-12-22 2015-11-24 Amo Groningen B.V. Accommodating intraocular lens, lens system and frame therefor
WO2008079671A1 (en) 2006-12-22 2008-07-03 Bausch & Lomb Incorporated Multi-element accommodative intraocular lens
US20080161914A1 (en) 2006-12-29 2008-07-03 Advanced Medical Optics, Inc. Pre-stressed haptic for accommodating intraocular lens
US20090228101A1 (en) 2007-07-05 2009-09-10 Visiogen, Inc. Intraocular lens with post-implantation adjustment capabilities
US8034108B2 (en) 2008-03-28 2011-10-11 Abbott Medical Optics Inc. Intraocular lens having a haptic that includes a cap
AU2010266020B2 (en) 2009-06-26 2015-03-26 Johnson & Johnson Surgical Vision, Inc. Accommodating intraocular lenses
US8343217B2 (en) 2009-08-03 2013-01-01 Abbott Medical Optics Inc. Intraocular lens and methods for providing accommodative vision
US9084674B2 (en) 2012-05-02 2015-07-21 Abbott Medical Optics Inc. Intraocular lens with shape changing capability to provide enhanced accomodation and visual acuity

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Also Published As

Publication number Publication date
WO1999020206A1 (en) 1999-04-29
JP2001520077A (en) 2001-10-30

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