Eye injection device
AssigneeInstitut National de la Sante et de la Recherche Medicale
InventorsElodie Touchard, Laura Kowalczuk, Francine Behar-Cohen
Life of this patent
Estimating the term…
Abstract
An injection device for injecting a product into an eye, said device comprising an injection needle and a support on which the injection needle is fixed, said device being characterized in that it comprises a locating mark disposed in such a way that the latter can be placed in contact with a defined bearing region of the surface of the eye, before any contact of the injection needle with said surface, and can then be kept in contact with said bearing region during a stage of penetration of said injection needle through said surface of the eye.
Claims19
An electroporation device for injecting a product into a ciliary muscle of an eye having a cornea having an edge, said device comprising:
- at least one injection needle to inject said product in an injection zone;
- a support on which the at least one injection needle is fixed or which is able to guide a sliding movement of the at least one injection needle;
- a locating mark fixed on the support and disposed, along an arc of a circle with a radius of greater than 5 mm and of less than 8 mm, in such a way that said locating mark can be placed in contact with a defined bearing region of a surface of the eye, before any contact of the at least one injection needle with said surface, and can then be kept in contact with said bearing region during a stage of penetration of said at least one injection needle through said surface of the eye, the bearing region being at least a part of the edge of the cornea of the eye, said penetration resulting from a rotation of the support about the locating mark when said at least one injection needle is fixed on the support;
- and
- an assembly of electrodes composed of first and second sets of electrodes designed to be connected electrically to first and second terminals, respectively, of an electrical generator in such a way as to create, within the injection zone, an electrical field that promotes electroporation,
- wherein, in a position of use preventing further penetration of said at least one injection needle, said at least one injection needle penetrates into the spherical envelope via a point of penetration and extends inside said spherical envelope to a depth less than 1.5 mm.
An electroporation device for introducing a product into a ciliary muscle of an eye, said device comprising:
- at least three invasive electrode needles, which extend parallel to each other along a direction,
- a support which is able to guide a sliding movement of the at least three needles along the axis of the at least three needles until a needle abutment position, the support comprising an abutment face extending substantially along a spherical envelope matching the sclera of the eye, a non-invasive electrode extending along said spherical envelope,
- a locating mark which can be placed in contact with a defined bearing region of a surface of the eye, before any contact of the needles with said surface, and can then be kept in contact with said bearing region during a stage of penetration of the needles through said surface of the eye, the bearing region being at least a part of an edge of a cornea of the eye,
- at least one injection needle,
- wherein, in a position of use preventing further penetration of said at least one injection needle, said at least one injection needle extends inside said spherical envelope to a depth of less than 1.5 mm.
Dependencies are inferred from the claim text.