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US 6,582,422 B2Granted
Ophthalmic delivery device
AssigneeBausch & Lomb Incorporated
InventorCharles E. Hess
Life of this patent
Estimating the term…
Abstract
Delivery device 10 for use in ophthalmic surgery includes body portion 12 for retaining an agent to be applied to a patient's eye. Body portion 12 includes structure forming a concave surface 14, so that when the delivery device 10 is placed on the eye, the device 10 closely fits to a corneal curvature of the eye.
Claims6
A delivery device for use in ophthalmic surgery comprising:
- a body portion for retaining an agent to be applied to a patient's eye;
- wherein the body portion includes structure forming a concave surface such that when the delivery device is placed on the eye the device closely fits to a corneal curvature of the eye thereby allowing the agent to contact the eye at a location defined by the concave surface and effectively preventing the agent from contacting the eye at an undesired location;
- and
- a support ring adjacent and surrounding the concave surface for further preventing the agent from contacting the eye at an undesired location.
1 more element
An agent application device for use in ophthalmic surgery comprising:
- a sponge;
- a loosening agent contained within the sponge;
- wherein the sponge includes structure forming a concave surface such that when the concave surface is placed on a patient's eye the loosening agent interacts with an epithelial layer of the eye at a location defined by the concave surface;
- and
- a support ring adjacent and surrounding the concave surface for assisting in maintaining the agent within a boundary defined by an outer edge of the concave surface.
2 more elements
Dependencies are inferred from the claim text.