Patient interface device for laser methods and systems
AssigneeLensar, Inc.
InventorsE. Valas Teuma, John McWhirter, Michael Brownell
Life of this patent
Estimating the term…
Abstract
An optical interface device having an opening for an optical path that can be non-circular and having engagement members having gradually varying angles of engagement. An embodiment of the interface device can be a one size fits all device, providing a configuration that fits in all typical eye openings, including narrow palpebral fissures and small eyes, while providing optical path access to features and structures of the eye. An embodiment of the interface device engages the limbus, cornea and sclera.
Claims35
An interface device for fixing on a human eye and operably connecting to an ophthalmic therapeutic, monitoring, diagnostic, or evaluative device, the interface device comprising:
- a. a body having an upper and a lower section, wherein the lower section defines a distal end of the interface device for contacting a surface of the eye and the upper section defines a proximal end of the interface device;
- whereby the proximal and distal ends define a device height along a vertical axis of the device;
- b. the lower section of the body defining an outer shape;
- c. the upper and lower sections of the body defining an opening through the device;
- d. the device having a major and a minor axis, wherein when in use the major axis corresponds to a nasal temporal axis;
- e. the lower section having an inner contact member surrounded by an outer contact member;
- the contact members each having a distal end;
- wherein the distal ends of the contact members form the distal end of the device;
- wherein the inner contact member defines an elliptical opening having a major and a minor axis;
- whereby the elliptical opening is an ellipse;
- f. the inner contact member having a height, and the outer contact member having a height;
- and,
- g. wherein the height of the inner contact member varies between a point intersecting the major axis and a point intersecting the minor axis.
An interface device for fixing on a human eye and operably connecting to an ophthalmic therapeutic, monitoring, diagnostic, or evaluative device, the interface device comprising:
- a. a body having an upper and a lower section, wherein the lower section defines a distal end of the interface device for contacting a surface of the eye and the upper section defines a proximal end of the interface device;
- whereby the proximal and distal ends define a device height along a vertical axis of the device;
- b. the lower section of the body comprising a ridged annular channel;
- c. the ridged annular channel containing and holding a flexible insert;
- the flexible insert comprising an inner contact member surrounded by an outer contact member;
- and forming a flexible annular zone for maintaining a reduced pressure when engaged with a surface of the eye;
- d. the upper and lower sections of the body defining an opening through the device;
- e. the device having a major and a minor axis, wherein when in use the major axis corresponds to a nasal temporal axis;
- wherein the distal end of the device defines a shape of a non-planar ellipse;
- wherein the inner contact member defines an elliptical opening having a major and a minor axis;
- whereby the elliptical opening is an ellipse;
- and,
- f. wherein the major axis of the opening at a distal end of the inner contact member is from about 1.01 to about 1.25 times larger than the minor axis.
Dependencies are inferred from the claim text.