Shielded endoillumination
AssigneeAlcon Inc.
InventorMichael Sam Cardamone
Life of this patent
Estimating the term…
Abstract
An apparatus for surgery on an eye. The apparatus may include a cannula having a hub with an instrument port, a shield, and a sleeve. The sleeve may have a first end coupled to the instrument port and a second end coupled to the shield. The system may further comprise an illuminator having a first end configured to be coupled to a light source and a second end configured to be inserted through the instrument port and the sleeve. The shield can be configured to partially block light emitted from the second end of the illuminator to prevent glare.
Claims15
A system for surgery on an eye, the system comprising:
- a cannula having a hub with an instrument port, a shield, and a sleeve having a first end coupled to the instrument port and a second end coupled to the shield;
- and
- an illuminator having a first end configured to be coupled to a light source and a second end configured to be inserted through the instrument port and the sleeve;
- wherein the shield is configured to partially block light emitted from the second end of the illuminator.
A system for surgery on an eye, the system comprising:
- a light source configured to provide an incoherent light;
- a cannula having a hub with an instrument port, a shield, and a sleeve having a first end coupled to the instrument port and a second end coupled to the shield;
- and
- an illuminator having a first end configured to be coupled to the light source and a second end configured to be inserted through the instrument port and the sleeve;
- wherein the sleeve and the shield are configured to be inserted into the eye, and the shield is configured to partially block light emitted from the second end of the illuminator in the eye.
An apparatus for eye surgery, the apparatus comprising:
- a light source configured to provide an incoherent light;
- a cannula having a hub with an instrument port, a sleeve, and a shield;
- and
- an illuminator configured to be coupled to the light source;
- wherein the sleeve and the shield are coaxial;
- wherein the shield has a first outside radius, and the sleeve has a second outside radius equal to the first outside radius;
- wherein the shield comprises a base coupled to the sleeve, and a face that intersects the base at an angle θ that is less than or equal to 90 degrees;
- wherein the base is characterized by a center, and an arc that subtends an angle ϕ that is less than or equal to 180 degrees and has a vertex at the center;
- and
- wherein the sleeve and the shield are configured to be inserted into an eye, the illuminator is configured to be inserted through the instrument port and the sleeve, the shield is configured to be rotated around the illuminator and to partially block light emitted from the illuminator into the eye.
Dependencies are inferred from the claim text.