Contact glass for ophthalmologic surgery
First Claim
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1. An adapter contact lens to be applied in contact with an anterior corneal surface of a cornea of an eye, the adapter comprising:
- a contact glass portion having an anterior lens surface, adapted for placement in contact with the eye; and
a mount portion circumferentially surrounding the contact glass portion, the mount portion presenting a plurality of suction orifices annularly surrounding the anterior lens surface of the contact glass portion, wherein the mount portion and the plurality of suction orifices are shaped and adapted to apply suction to the surface of the eye through the suction orifices;
the mount portion further comprising a suction channel, which annularly surrounds the periphery of the anterior lens surface and in which the suction orifices terminate;
wherein the suction channel is an annular space between and partially bounded by the mount portion and the contact glass portion, the annular space being further bounded by a wall of the mount portion extending from an exteriorly located edge of the mount portion to the edge of the anterior lens surface, and the wall of the mount further defining openings therethrough that form individual channels and, thus, the suction orifices.
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Accused Products
Abstract
A contact glass for ophthalmic surgery, including a concave anterior lens surface for placement on the eye and a suction channel annularly surrounding the periphery of the anterior lens surface. The suction channel allows the contact glass to be fixed to the eye by means of a vacuum, it is envisaged that the suction channel comprise a multiplicity of suction orifices, which are annularly arranged with respect to the anterior lens surface and through which the vacuum acts on the eye.
55 Citations
13 Claims
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1. An adapter contact lens to be applied in contact with an anterior corneal surface of a cornea of an eye, the adapter comprising:
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a contact glass portion having an anterior lens surface, adapted for placement in contact with the eye; and a mount portion circumferentially surrounding the contact glass portion, the mount portion presenting a plurality of suction orifices annularly surrounding the anterior lens surface of the contact glass portion, wherein the mount portion and the plurality of suction orifices are shaped and adapted to apply suction to the surface of the eye through the suction orifices; the mount portion further comprising a suction channel, which annularly surrounds the periphery of the anterior lens surface and in which the suction orifices terminate; wherein the suction channel is an annular space between and partially bounded by the mount portion and the contact glass portion, the annular space being further bounded by a wall of the mount portion extending from an exteriorly located edge of the mount portion to the edge of the anterior lens surface, and the wall of the mount further defining openings therethrough that form individual channels and, thus, the suction orifices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification