WO2004012619A2 - Implant for the treatment of presbyopia - Google Patents

Implant for the treatment of presbyopia Download PDF

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Publication number
WO2004012619A2
WO2004012619A2 PCT/FR2003/002437 FR0302437W WO2004012619A2 WO 2004012619 A2 WO2004012619 A2 WO 2004012619A2 FR 0302437 W FR0302437 W FR 0302437W WO 2004012619 A2 WO2004012619 A2 WO 2004012619A2
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WO
WIPO (PCT)
Prior art keywords
implant
scleral
fixing element
radial
circumferential
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PCT/FR2003/002437
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French (fr)
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WO2004012619A3 (en
Inventor
Gilbert Cohen
Original Assignee
Gilbert Cohen
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Filing date
Publication date
Application filed by Gilbert Cohen filed Critical Gilbert Cohen
Priority to AU2003281836A priority Critical patent/AU2003281836A1/en
Publication of WO2004012619A2 publication Critical patent/WO2004012619A2/en
Publication of WO2004012619A3 publication Critical patent/WO2004012619A3/en

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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, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/147—Implants to be inserted in the stroma for refractive correction, e.g. ring-like implants

Definitions

  • the present invention relates to the field of the treatment of presbyopia and the restoration of accommodation of the eyes.
  • the present invention relates more particularly to an implant for the treatment of presbyopia, of the type having means for indenting the ciliary body of the eye.
  • this technique is based on making 4 scleral radiating incisions opposite the ciliary body. Implants are placed in the incisions so as to open outwards and prevent scarring; and - the circumferential segments: implants are placed inside the sclera, circumferentially around the cornea. The implants can be placed more or less deeply.
  • the sclera and the ciliary body are separable and that it is possible to slide an element in the space between the sclera and the ciliary body called "supra-ciliary space” or "sub-scleral space”.
  • the present invention thus intends to propose taking advantage of this space in order to slide an implant therein having a head responsible for indenting the ciliary body.
  • the present invention further proposes to associate this sub-scleral head with a fixing element intended to ensure the maintenance and correct positioning of the sub-scleral head.
  • the present invention is of the type described above and it is remarkable, in its broadest sense, in that the implant comprises at least one circumferential sub-scleral head, intended to be positioned under the sclera, circumferentially and at least an intra-scleral fixation element, intended to be positioned in the thickness of the sclera.
  • indenting is meant to achieve a notch or hollow on the external surface of the ciliary body, which thus causes a backflow or a bump from the internal face, towards the lens, of said ciliary body.
  • Said intra-scleral fixation element is preferably composed of at least one radial body, positioned substantially perpendicular to the circumferential sub-scleral head and / or of a circumferential body, connected to the circumferential sub-scleral head by at minus a radial bridge.
  • Said radial bridge is preferably intended to be positioned under the sclera.
  • Said circumferential head and said at least one fixing element (s) are preferably curved according to a radius of approximately 11 millimeters, in order to adapt to the curve of the sclera.
  • Said at least one fixing element (s) preferably have at least one suture hole.
  • said at least one fixing element (s) and possibly said at least one radial bridge (s) are preferably made of material, but the implant may have different characteristics at different places.
  • Said or said intra-scleral fixation element (s) preferably has a thickness of approximately 0.6 millimeter.
  • Said sub-scleral circumferential head preferably has a thickness Et of approximately 0.3 millimeter.
  • the implant according to the invention preferably has an axis of radial symmetry.
  • the present invention intends to propose a simple, effective and inexpensive means of producing an indentation of the ciliary body, in order to make it possible to correct presbyopia.
  • FIG. 1 illustrates a top view of an eye comprising four implants according to the first alternative embodiment of the invention
  • Figure 2 illustrates a partial sectional view along AA of Figure 1
  • Figure 3 illustrates a side view of the first alternative embodiment of the invention
  • Figure 4 illustrates a top view of the first alternative embodiment of the invention
  • - Figure 5 illustrates a front view of the first alternative embodiment of the invention
  • FIG. 6 illustrates a top view of an eye comprising an implant according to the second variant embodiment of the invention
  • - Figure 7 illustrates a partial sectional view along BB of Figure 6
  • Figure 8 illustrates a partial sectional view along CC of Figure 6
  • FIG. 9 illustrates a side view of the second variant embodiment of the invention
  • FIG. 10 illustrates a top view of the second variant embodiment of the invention
  • FIG. 11 illustrates a front view of the second variant embodiment of the invention.
  • the implant (1) according to the invention is an implant (1) for the treatment of presbyopia, of the type having means for indenting the ciliary body (2) of the eye (3).
  • This implant comprises at least one circumferential sub-scleral head (11), intended to be positioned under the sclera (4), circumferentially and at least one intra-scleral fixing element (12), intended to be positioned inside the sclera (4), in the thickness of the sclera (4).
  • the circumferential head (11) sub-scleral will cause a deformation of the ciliary body which will allow to correct the presbyopia and the element or the fixing elements (12) intra-scleral will or will allow to stabilize the implant in the eye and prevent any movement relative to the rest of the eye, both centrifugal and lateral, after implantation.
  • said fixing element (s) (12) comprises (s) at least one suture hole (16, 16 ′) and at least one suture is made with the sclera at the level of the fixation (12) by passing a suture thread (17, 17 ') through each suture hole (16, 16').
  • FIGS. 1 and 2 illustrate a first alternative embodiment of the invention in which said intra-scleral fixing element (12) is composed of at least one radial body (13), positioned substantially perpendicular to a mean plane of the head circumferential (11) sub-scleral.
  • FIGS 6, 7 and 8 illustrate a second alternative embodiment of the invention in which said fixing element (12) intra-scleral is composed of a circumferential body (14), connected to the circumferential head (11) scleral by at least one radial bridge (15, 15 ').
  • This or these radial bridges (15) is or are intended to be positioned under the sclera (4).
  • said circumferential head (11) and said fixing element (12) are curved according to a longitudinal curvature radius Ril and according to a transverse curvature radius Rit of about 11 millimeters, in order to adapt to the sclera curve (4), as can be seen in Figures 3 and 5 for the first variant and 9 and 11 for the second variant.
  • the implant (1) has a radial axis of symmetry (18), as illustrated in FIGS. 4 and 10.
  • the radial body (13) for the first variant and the radial bridge (s) (15, 15 ') for the second variant are offset laterally and that the implant (1) does not have no more radial axis of symmetry.
  • said circumferential head (11) is curved according to a radius of curvature proximal Rip, less than the radii of longitudinal curvature Ril and transverse Rit.
  • the proximal radius of curvature Rip is approximately 7 millimeters.
  • the intra-scleral fixing element (12) formed by the circumferential body (14) is also curved according to the proximal radius of curvature Rip.
  • said intra-scleral fixing element (12) has a thickness Ef of about 0.6 millimeter; which corresponds to a thickness less than the thickness of the sclera, which is generally about 0.8 millimeters.
  • said circumferential head (11) has a thickness Et of approximately half the thickness Ef of the fixing element (12), ie approximately 0.3 millimeter.
  • said circumferential head (11) has a width lt overall of approximately 6 millimeters and a length Lt overall of approximately 1.5 millimeters.
  • the overall length Le of the radial body (13) is approximately 2 millimeters and the radial body (13) and the circumferential head (11) are connected together over a length of attachment Lr about 0.5 millimeter.
  • the radial body (13) has a width lc of about 0.6 millimeter.
  • the overall length Lp of the radial bridge (15, 15 ') is approximately 2 millimeters and the radial bridge (15, 15') has an overall width lp of approximately 0.5 millimeters.
  • the overall length Ld of the circumferential body (14) is approximately 2 to 6 millimeters and the circumferential body (14) has a width ld overall of approximately 6 millimeters, substantially equal to the width lt excluding all of the circumferential head (11).
  • Said circumferential head (11), said fastening element (12) and possibly said one or more radial bridges (15, 15 ′) for the second variant are preferably made of material, that is to say that is, they make a single piece, made, for example, by molding plastic like PMMA.
  • the implant may have different characteristics in different places.

Abstract

The invention relates to an implant (1) for treating presbyopia, comprising means for indenting the ciliary body (2) of the eye (3). Said implant is characterized by the fact that it comprises at least one subscleral circumferential head (11) which is circumferentially positioned below the sclera (4) and at least one intrascleral fixing element (12) which is positioned within the thickness of the sclera (4).

Description

IMPLANT POUR LE TRAITEMENT DE LA PRESBYTIE IMPLANT FOR THE TREATMENT OF PRESBYTIA
La présente invention se rapporte au domaine du traitement de la presbytie et de la restauration de l'accommodation des yeux.The present invention relates to the field of the treatment of presbyopia and the restoration of accommodation of the eyes.
La présente invention se rapporte plus particulièrement à un implant pour le traitement de la presbytie, du type présentant des moyens pour indenter le corps ciliaire de l'œil.The present invention relates more particularly to an implant for the treatment of presbyopia, of the type having means for indenting the ciliary body of the eye.
Il existe actuellement essentiellement deux techniques pour la restauration de l'accommodation, c'est- à-dire le traitement de la presbytie :There are currently essentially two techniques for the restoration of accommodation, that is to say the treatment of presbyopia:
- la sclérotomie ciliaire antérieure : cette technique repose sur la réalisation de 4 incisions sclérales radiaires en regard du corps ciliaire. Des implants sont disposés dans les incisions de manière à déboucher vers l'extérieur et empêcher la cicatrisation ; et - les segments circonférentiels : des implants sont disposés à l'intérieur de la sclère, circonférentiellement autour de la cornée. Les implants peuvent être disposés plus ou moins profondément.- anterior ciliary sclerotomy: this technique is based on making 4 scleral radiating incisions opposite the ciliary body. Implants are placed in the incisions so as to open outwards and prevent scarring; and - the circumferential segments: implants are placed inside the sclera, circumferentially around the cornea. The implants can be placed more or less deeply.
Cette dernière technique a notamment fait l'objet des demandes internationales de brevet N° WO 94/02084 WO 99/17684, et WO 00/21466.The latter technique has in particular been the subject of international patent applications No. WO 94/02084 WO 99/17684, and WO 00/21466.
Tous les implants présentés dans les documents de l'art antérieur sont destinés à être positionnés dans la sclère, ce qui pose des difficultés pratique de mise en œuvre, afin de ne pas endommager le corps ciliaire sous- jacent .All the implants presented in the documents of the prior art are intended to be positioned in the sclera, which poses practical difficulties of implementation, so as not to damage the underlying ciliary body.
Or, il a été remarqué que la sclère et le corps ciliaire étaient séparables et qu'il est possible de glisser un élément dans l'espace entre la sclère et le corps ciliaire appelé « espace supra-ciliaire » ou « espace sous-scléral ».However, it has been noticed that the sclera and the ciliary body are separable and that it is possible to slide an element in the space between the sclera and the ciliary body called "supra-ciliary space" or "sub-scleral space".
La présente invention entend proposer ainsi de mettre à profit cet espace afin d'y glisser un implant présentant une tête chargée d' indenter le corps ciliaire.The present invention thus intends to propose taking advantage of this space in order to slide an implant therein having a head responsible for indenting the ciliary body.
Pour assurer la stabilité ce cet implant, la présente invention propose en outre d'associer cette tête sous-sclérale à un élément de fixation destiné à assurer le maintien et le bon positionnement de la tête sous- sclérale.To ensure the stability of this implant, the present invention further proposes to associate this sub-scleral head with a fixing element intended to ensure the maintenance and correct positioning of the sub-scleral head.
La présente invention est du type décrit ci- dessus et elle est remarquable, dans son acception la plus large, en ce que l'implant comporte au moins une tête circonférentielle sous-sclèrale, destinée à être positionnée sous la sclère, circonférentiellement et au moins un élément de fixation intra-sclèral, destiné à être positionné dans l'épaisseur de la sclère.The present invention is of the type described above and it is remarkable, in its broadest sense, in that the implant comprises at least one circumferential sub-scleral head, intended to be positioned under the sclera, circumferentially and at least an intra-scleral fixation element, intended to be positioned in the thickness of the sclera.
Par indenter on entend réaliser une échancrure ou creux sur la surface externe du corps ciliaire, ce qui provoque ainsi un refoulement ou une bosse de la face interne, vers le cristallin, dudit corps ciliaire.By indenting is meant to achieve a notch or hollow on the external surface of the ciliary body, which thus causes a backflow or a bump from the internal face, towards the lens, of said ciliary body.
Pour obtenir la meilleure indentation, il est conseillé de disposer plusieurs implants dans l'œil à traiter, de manière à ce que les têtes circonférentielles forment sensiblement un anneau. Un nombre de quatre implant par œil semble idéal.To obtain the best indentation, it is advisable to place several implants in the eye to be treated, so that the circumferential heads form substantially a ring. A number of four implants per eye seems ideal.
Ledit élément de fixation intra-sclèral est composé, de préférence, d'au moins un corps radiaire, positionné sensiblement perpendiculairement à la tête circonférentielle sous-sclérale et/ou d'un corps circonférentiel, relié à la tête circonférentielle sous- sclérale par au moins un pont radiaire.Said intra-scleral fixation element is preferably composed of at least one radial body, positioned substantially perpendicular to the circumferential sub-scleral head and / or of a circumferential body, connected to the circumferential sub-scleral head by at minus a radial bridge.
Ledit pont radiaire est, de préférence, destiné à être positionné sous la sclère. Ladite tête circonférentielle et ledit ou lesdits élément (s) de fixation sont, de préférence, incurvés selon un rayon d'environ 11 millimètres, afin de s'adapter à la courbe de la sclère. Ledit ou lesdits élément (s) de fixation comporte (nt) , de préférence, au moins un trou de suture.Said radial bridge is preferably intended to be positioned under the sclera. Said circumferential head and said at least one fixing element (s) are preferably curved according to a radius of approximately 11 millimeters, in order to adapt to the curve of the sclera. Said at least one fixing element (s) preferably have at least one suture hole.
Ladite tête circonférentielle, ledit ou lesdits élément (s) de fixation et éventuellement ledit ou lesdits pont (s) radiaire (s) sont, de préférence, venus de matière, mais l'implant peut présenter des caractéristiques différentes à différents endroits.Said circumferential head, said at least one fixing element (s) and possibly said at least one radial bridge (s) are preferably made of material, but the implant may have different characteristics at different places.
Ledit ou lesdits élément (s) de fixation intra- sclèral présente, de préférence, une épaisseur d'environ 0,6 millimètre. Ladite tête circonférentielle sous-sclèrale présente, de préférence, une épaisseur Et d'environ 0,3 millimètre .Said or said intra-scleral fixation element (s) preferably has a thickness of approximately 0.6 millimeter. Said sub-scleral circumferential head preferably has a thickness Et of approximately 0.3 millimeter.
L'implant selon invention présente, de préférence, un axe de symétrie radiaire.The implant according to the invention preferably has an axis of radial symmetry.
Avantageusement, la présente invention entend proposer un moyen simple, efficace et peu onéreux de réalisation une indentation du corps ciliaire, afin de permettre de corriger la presbytie.Advantageously, the present invention intends to propose a simple, effective and inexpensive means of producing an indentation of the ciliary body, in order to make it possible to correct presbyopia.
On comprendra mieux l'invention à l'aide de la description, faite ci-après à titre purement explicatif, d'un mode de réalisation de l'invention, en référence aux figures annexées : - la figure 1 illustre une vue de dessus d'un œil comportant quatre implants selon la première variante de réalisation de l'invention ; la figure 2 illustre une vue partielle en coupe selon AA de la figure 1 ; la figure 3 illustre une vue de côté de la première variante de réalisation de l'invention ; ; la figure 4 illustre une vue de dessus de la première variante de réalisation de l'invention ; - la figure 5 illustre une vue de face de la première variante de réalisation de l'invention ; la figure 6 illustre une vue de dessus d'un œil comportant un implant selon la deuxième variante de réalisation de l'invention ; - la figure 7 illustre une vue partielle en coupe selon BB de la figure 6 ; la figure 8 illustre une vue partielle en coupe selon CC de la figure 6 ; la figure 9 illustre une vue de côté de la deuxième variante de réalisation de l'invention ; ; la figure 10 illustre une vue de dessus de la deuxième variante de réalisation de l'invention ; et la figure 11 illustre une vue de face de la deuxième variante de réalisation de l'invention.The invention will be better understood using the description, given below for purely explanatory purposes, of an embodiment of the invention, with reference to the appended figures: - Figure 1 illustrates a top view of an eye comprising four implants according to the first alternative embodiment of the invention; Figure 2 illustrates a partial sectional view along AA of Figure 1; Figure 3 illustrates a side view of the first alternative embodiment of the invention; ; Figure 4 illustrates a top view of the first alternative embodiment of the invention; - Figure 5 illustrates a front view of the first alternative embodiment of the invention; FIG. 6 illustrates a top view of an eye comprising an implant according to the second variant embodiment of the invention; - Figure 7 illustrates a partial sectional view along BB of Figure 6; Figure 8 illustrates a partial sectional view along CC of Figure 6; FIG. 9 illustrates a side view of the second variant embodiment of the invention; ; FIG. 10 illustrates a top view of the second variant embodiment of the invention; and FIG. 11 illustrates a front view of the second variant embodiment of the invention.
L'implant (1) selon invention est un implant (1) pour le traitement de la presbytie, du type présentant des moyens pour indenter le corps ciliaire (2) de l'œil (3) . Cet implant comporte au moins une tête circonférentielle (11) sous-sclèrale, destinée à être positionnée sous la sclère (4) , circonférentiellement et au moins un élément de fixation (12) intra-sclèral, destiné à être positionné à l'intérieur de la sclère (4), dans l'épaisseur de la sclère (4).The implant (1) according to the invention is an implant (1) for the treatment of presbyopia, of the type having means for indenting the ciliary body (2) of the eye (3). This implant comprises at least one circumferential sub-scleral head (11), intended to be positioned under the sclera (4), circumferentially and at least one intra-scleral fixing element (12), intended to be positioned inside the sclera (4), in the thickness of the sclera (4).
Ainsi, la tête circonférentielle (11) sous- sclèrale va entraîner une déformation du corps ciliaire qui va permettre de corriger la presbytie et l'élément ou les éléments de fixation (12) intra-sclèral va ou vont permettre de stabiliser l'implant dans l'œil et empêcher tout mouvement par rapport au reste de l'œil, aussi bien centrifuge que latéral, après implantation.Thus, the circumferential head (11) sub-scleral will cause a deformation of the ciliary body which will allow to correct the presbyopia and the element or the fixing elements (12) intra-scleral will or will allow to stabilize the implant in the eye and prevent any movement relative to the rest of the eye, both centrifugal and lateral, after implantation.
Pour parfaire ce blocage, ledit ou lesdits élément (s) de fixation (12) comporte (nt) au moins un trou de suture (16, 16') et au moins une suture est réalisée avec la sclère au niveau de l'élément de fixation (12) en passant un fil de suture (17, 17') dans chaque trou de suture (16, 16' ) .To perfect this blocking, said fixing element (s) (12) comprises (s) at least one suture hole (16, 16 ′) and at least one suture is made with the sclera at the level of the fixation (12) by passing a suture thread (17, 17 ') through each suture hole (16, 16').
Les figures 1 et 2 illustrent une première variante de réalisation de l'invention dans laquelle ledit élément de fixation (12) intra-sclèral est composé d'au moins un corps radiaire (13), positionné sensiblement perpendiculairement à un plan moyen de la tête circonférentielle (11) sous-sclérale.FIGS. 1 and 2 illustrate a first alternative embodiment of the invention in which said intra-scleral fixing element (12) is composed of at least one radial body (13), positioned substantially perpendicular to a mean plane of the head circumferential (11) sub-scleral.
Les figures 6, 7 et 8 illustrent une deuxième variante de réalisation de l'invention dans laquelle ledit élément de fixation (12) intra-sclèral est composé d'un corps circonférentiel (14), relié à la tête circonférentielle (11) sous-sclérale par au moins un pont (15, 15') radiaire.Figures 6, 7 and 8 illustrate a second alternative embodiment of the invention in which said fixing element (12) intra-scleral is composed of a circumferential body (14), connected to the circumferential head (11) scleral by at least one radial bridge (15, 15 ').
Ce ou ces ponts (15) radiaires est ou sont destinés à être positionnés sous la sclère (4) .This or these radial bridges (15) is or are intended to be positioned under the sclera (4).
Dans les deux variantes, ladite tête circonférentielle (11) et ledit élément de fixation (12) sont incurvés selon un rayon d'incurvation longitudinal Ril et selon un rayon d'incurvation transversal Rit d'environ 11 millimètres, afin de s'adapter à la courbe de la sclère (4) , comme on peut le voir sur les figures 3 et 5 pour la première variante et 9 et 11 pour la deuxième variante.In both variants, said circumferential head (11) and said fixing element (12) are curved according to a longitudinal curvature radius Ril and according to a transverse curvature radius Rit of about 11 millimeters, in order to adapt to the sclera curve (4), as can be seen in Figures 3 and 5 for the first variant and 9 and 11 for the second variant.
Dans les deux variantes également, l'implant (1) présente un axe de symétrie (18) radiaire, comme illustré figures 4 et 10. Toutefois, il peut également être imaginé que le corps radiaire (13) pour la première variante et le ou les pont (s) (15, 15') radiaire (s) pour la deuxième variante, soient décalés latéralement et que l'implant (1) ne présente plus d'axe de symétrie radiaire.In both variants also, the implant (1) has a radial axis of symmetry (18), as illustrated in FIGS. 4 and 10. However, it can It can also be imagined that the radial body (13) for the first variant and the radial bridge (s) (15, 15 ') for the second variant, are offset laterally and that the implant (1) does not have no more radial axis of symmetry.
Dans les deux variantes également, ladite tête circonférentielle (11) est incurvée selon un rayon d'incurvation proximal Rip, inférieur aux rayons d'incurvation longitudinale Ril et transversale Rit. Le rayon d'incurvation proximal Rip est d'environ 7 millimètres .In both variants also, said circumferential head (11) is curved according to a radius of curvature proximal Rip, less than the radii of longitudinal curvature Ril and transverse Rit. The proximal radius of curvature Rip is approximately 7 millimeters.
Dans la deuxième variante, l'élément de fixation (12) intra-sclèral formé par le corps circonf erentiel (14) est également incurvée selon le rayon d'incurvation proximal Rip.In the second variant, the intra-scleral fixing element (12) formed by the circumferential body (14) is also curved according to the proximal radius of curvature Rip.
Dans les deux variantes également, ledit élément de fixation (12) intra-sclèral présente une épaisseur Ef d'environ 0,6 millimètre ; ce qui correspond à une épaisseur inférieure à l'épaisseur de la sclère, qui est en général d'environ o,8 millimètres.Also in the two variants, said intra-scleral fixing element (12) has a thickness Ef of about 0.6 millimeter; which corresponds to a thickness less than the thickness of the sclera, which is generally about 0.8 millimeters.
Dans les deux variantes également, ladite tête circonférentielle (11) présente une épaisseur Et d'environ la moitié de l'épaisseur Ef de l'élément de fixation (12), soit environ 0,3 millimètre.Also in the two variants, said circumferential head (11) has a thickness Et of approximately half the thickness Ef of the fixing element (12), ie approximately 0.3 millimeter.
Dans les deux variantes également, ladite tête circonférentielle (11) présente une largeur lt hors tout d'environ 6 millimètres et une longueur Lt hors tout d'environ 1,5 millimètre.In the two variants also, said circumferential head (11) has a width lt overall of approximately 6 millimeters and a length Lt overall of approximately 1.5 millimeters.
Dans la première variante, la longueur Le hors tout du corps radiaire (13) est d'environ 2 millimètres et le corps radiaire (13) et la tête circonférentielle (11) sont reliés ensemble sur une longueur de rattachement Lr d'environ 0,5 millimètre. Le corps radiaire (13) présente une largeur le d'environ 0,6 millimètre.In the first variant, the overall length Le of the radial body (13) is approximately 2 millimeters and the radial body (13) and the circumferential head (11) are connected together over a length of attachment Lr about 0.5 millimeter. The radial body (13) has a width lc of about 0.6 millimeter.
Dans la deuxième variante, la longueur Lp, hors tout du pont (15, 15') radiaire est d'environ 2 millimètres et le pont (15, 15') radiaire présente une largeur lp hors tout d'environ 0,5 millimètre. L'épaisseur Ep du pont (15,In the second variant, the overall length Lp of the radial bridge (15, 15 ') is approximately 2 millimeters and the radial bridge (15, 15') has an overall width lp of approximately 0.5 millimeters. The thickness Ep of the bridge (15,
15') radiaire est d'environ 0,3 millimètres.15 ') radial is about 0.3 millimeters.
Dans cette deuxième variante, la longueur Ld hors tout du corps circonferentiel (14) est d'environ 2 à 6 millimètres et le corps circonferentiel (14) présente une largeur ld hors tout d'environ 6 millimètres, sensiblement égale à la largeur lt hors tout de la tête circonférentielle (11) .In this second variant, the overall length Ld of the circumferential body (14) is approximately 2 to 6 millimeters and the circumferential body (14) has a width ld overall of approximately 6 millimeters, substantially equal to the width lt excluding all of the circumferential head (11).
Ladite tête circonférentielle (11), ledit élément de fixation (12) et éventuellement ledit ou lesdits pont (s) (15, 15') radiaire (s) pour la deuxième variante sont, de préférence, venus de matière, c'est-à-dire qu'ils réalisent une seule pièce, fabriquée, par exemple, par moulage de matière plastique comme du PMMA. Toutefois, l'implant peut présenter des caractéristiques différentes à différents endroits.Said circumferential head (11), said fastening element (12) and possibly said one or more radial bridges (15, 15 ′) for the second variant are preferably made of material, that is to say that is, they make a single piece, made, for example, by molding plastic like PMMA. However, the implant may have different characteristics in different places.
Comme on peut le constater sur les figures 1 et 6 , pour l'implantation de la première variante de réalisation de l'implant selon l'invention, il est nécessaire d'opérer une incision (10) unique radiaire et pour l'implantation de la première variante de réalisation de l'implant selon l'invention, il est nécessaire d'opérer une incision (10') unique circonférentielle.As can be seen in Figures 1 and 6, for the implantation of the first alternative embodiment of the implant according to the invention, it is necessary to make a single radial incision (10) and for the implantation of the first variant embodiment of the implant according to the invention, it is necessary to operate a single circumferential incision (10 ′).
Pour réaliser l'incision (10, 10') et implanter l'implant (1) selon l'invention, il est possible d'utiliser un dispositif de découpe tel que celui connu de la demande internationale de brevet déposée sous le numéro PCT/FR01/0423404234. L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de l'invention sans pour autant sortir du cadre du brevet. To make the incision (10, 10 ') and implant the implant (1) according to the invention, it is possible to use a cutting device such as that known from the international patent application filed under the number PCT / FR01 / 0423404234. The invention is described in the foregoing by way of example. It is understood that a person skilled in the art is able to carry out different variants of the invention without going beyond the scope of the patent.

Claims

REVENDICATIONS
1. Implant (1) pour le traitement de la presbytie, du type présentant des moyens pour indenter le corps ciliaire (2) de l'œil (3), caractérisé en ce qu'il comporte au moins une tête circonférentielle (11) sous- sclèrale, destinée à être située sous la sclère (4) , circonférentiellement et au moins un élément de fixation (12) intra-sclèral, destiné à être positionné dans l'épaisseur de la sclère (4).1. Implant (1) for the treatment of presbyopia, of the type having means for indenting the ciliary body (2) of the eye (3), characterized in that it comprises at least one circumferential head (11) under - scleral, intended to be located under the sclera (4), circumferentially and at least one fixing element (12) intra-scleral, intended to be positioned in the thickness of the sclera (4).
2. Implant (1) selon la revendication 1, caractérisé en ce que ledit élément de fixation (12) intra-sclèral est composé d'au moins un corps radiaire (13), positionné sensiblement perpendiculairement à la tête circonférentielle (11) sous-sclérale.2. Implant (1) according to claim 1, characterized in that said fixing element (12) intra-scleral consists of at least one radial body (13), positioned substantially perpendicular to the circumferential head (11) sub- scleral.
3. Implant (1) selon la revendication 1 ou la revendication 2, caractérisé en ce que ledit élément de fixation (12) intra-sclèral est composé d'un corps c i r confèrent i e 1 (14) , relié à la tête circonférentielle (11) sous-sclérale par au moins un pont (15, 15') radiaire.3. Implant (1) according to claim 1 or claim 2, characterized in that said fixing element (12) intra-scleral is composed of a body cir confer ie 1 (14), connected to the circumferential head (11 ) sub-scleral by at least one radial bridge (15, 15 ').
4. Implant (1) selon la revendication 3, caractérisé en ce que ledit pont (15) radiaire est destiné à être positionné sous la sclère (4) .4. Implant (1) according to claim 3, characterized in that said radial bridge (15) is intended to be positioned under the sclera (4).
5. Implant (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que ladite tête circonférentielle (11) et ledit élément de fixation (12) sont incurvés selon un rayon d'environ 11 millimètres, afin de s'adapter à la courbe du corps ciliaire (2) . 5. Implant (1) according to any one of claims 1 to 4, characterized in that said circumferential head (11) and said fixing element (12) are curved according to a radius of about 11 millimeters, in order to s' adapt to the curve of the ciliary body (2).
6. Implant (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que ledit ou lesdits élément (s) de fixation (12) comporte (nt) au moins un trou de suture (16, 16').6. Implant (1) according to any one of claims 1 to 5, characterized in that said one or more fixing element (s) (12) comprises (s) at least one suture hole (16, 16 ').
7. Implant (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que ladite tête circonférentielle (11), ledit ou lesdits élément (s) de fixation (12) et éventuellement ledit ou lesdits pont (s) (15, 15') radiaire (s) sont venus de matière.7. Implant (1) according to any one of claims 1 to 6, characterized in that said circumferential head (11), said one or more fixing element (s) (12) and possibly said one or more bridge (s) ( 15, 15 ') radial (s) came from matter.
8. Implant (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que ledit ou lesdits élément (s) de fixation (12) intra-sclèral présente (nt) une épaisseur d'environ 0,6 millimètre.8. Implant (1) according to any one of claims 1 to 7, characterized in that said one or more fixing element (s) (12) intra-scleral has (s) a thickness of about 0.6 millimeter.
9. Implant (1) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que ladite tête circonférentielle (11) sous-sclèrale présente une épaisseur Et d'environ 0,3 millimètre.9. Implant (1) according to any one of claims 1 to 8, characterized in that said circumferential head (11) sub-scleral has a thickness Et of about 0.3 millimeter.
10. Implant (1) selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'il présente un axe de symétrie (18) radiaire. 10. Implant (1) according to any one of claims 1 to 9, characterized in that it has an axis of symmetry (18) radial.
PCT/FR2003/002437 2002-08-01 2003-07-31 Implant for the treatment of presbyopia WO2004012619A2 (en)

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AU2003281836A AU2003281836A1 (en) 2002-08-01 2003-07-31 Implant for the treatment of presbyopia

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FR02/09829 2002-08-01
FR0209829A FR2843015B1 (en) 2002-08-01 2002-08-01 IMPLANT FOR THE TREATMENT OF PRESBYOPIA

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WO2004012619A3 WO2004012619A3 (en) 2004-11-18

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Publication number Priority date Publication date Assignee Title
US9308082B2 (en) 2012-08-07 2016-04-12 RegenEye, L.L.C. Ocular collar stent for treating narrowing of the irideocorneal angle
US9974645B2 (en) 2012-08-07 2018-05-22 RegenEye, L.L.C. Method of reducing the occurrence of macular and neuroretinal degenerations by alleviating age related retinal stresses as a contributing factor in a mammalian eye
US10265161B2 (en) 2012-08-07 2019-04-23 Regeneye L. L. C. Ocular collar stent for treating narrowing of the irideocorneal angle

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Publication number Priority date Publication date Assignee Title
WO1994002084A1 (en) * 1992-07-15 1994-02-03 Schachar Ronald A Treatment of presbyopia and other eye disorders
WO1996040005A1 (en) * 1995-06-07 1996-12-19 Keravision, Inc. Radial intrastromal corneal insert and a method of insertion
WO1999017684A1 (en) * 1997-10-08 1999-04-15 Ras Holding Corporation Segmented scleral band for treatment of presbyopia and other eye disorders
US6007578A (en) * 1997-10-08 1999-12-28 Ras Holding Corp Scleral prosthesis for treatment of presbyopia and other eye disorders
WO2001017460A1 (en) * 1999-09-03 2001-03-15 Restorvision, Inc. Ophthalmic device and method of manufacture and use

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002084A1 (en) * 1992-07-15 1994-02-03 Schachar Ronald A Treatment of presbyopia and other eye disorders
WO1996040005A1 (en) * 1995-06-07 1996-12-19 Keravision, Inc. Radial intrastromal corneal insert and a method of insertion
WO1999017684A1 (en) * 1997-10-08 1999-04-15 Ras Holding Corporation Segmented scleral band for treatment of presbyopia and other eye disorders
US6007578A (en) * 1997-10-08 1999-12-28 Ras Holding Corp Scleral prosthesis for treatment of presbyopia and other eye disorders
WO2001017460A1 (en) * 1999-09-03 2001-03-15 Restorvision, Inc. Ophthalmic device and method of manufacture and use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9308082B2 (en) 2012-08-07 2016-04-12 RegenEye, L.L.C. Ocular collar stent for treating narrowing of the irideocorneal angle
US9974645B2 (en) 2012-08-07 2018-05-22 RegenEye, L.L.C. Method of reducing the occurrence of macular and neuroretinal degenerations by alleviating age related retinal stresses as a contributing factor in a mammalian eye
US10265161B2 (en) 2012-08-07 2019-04-23 Regeneye L. L. C. Ocular collar stent for treating narrowing of the irideocorneal angle

Also Published As

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AU2003281836A8 (en) 2004-02-23
AU2003281836A1 (en) 2004-02-23
WO2004012619A3 (en) 2004-11-18
FR2843015A1 (en) 2004-02-06
FR2843015B1 (en) 2005-06-10

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