Patent US5645550A successfully refreshed from Google Patents.
US5645550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for providing precise location of points on the eye
Assignee: Chiron Technolas GmbH Ophthalmologische System
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Filing: 1994-04-08
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Granted: 1997-07-08
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Expires: 2014-04-08
Abstract
Abstract A method and apparatus for providing more precise aiming by an eye tracking system, including a registration, or aiming, laser, that provides for precise location of where the next laser ablation shot will impinge upon the eye. The method and apparatus further includes an aiming assistance fixture that provides a fixed frame of reference for locating the origin of the eye.
Inventors
- 👤 Kristian Hohla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:25
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61F; A61F9/00; A61F9/007; A61F9/008; A61F9/00802; B; B23; B23K; B23K26/00; B23K26/02; B23K26/04; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00057; A61B2017/00681; A61B2017/00694; A61B2018/00636; A61B2018/2015; A61B2018/2025; A61F2009/00844; A61F2009/00846; A61F2009/00855; A61F2009/00861; A61F2009/00872; A61F9/009
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
124 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein the shape is oblong.
Claim 2
Dependent Claim
124 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein the shape is oblong.
Claim 3
Dependent Claim
137 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; and means for attaching to the eye; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said means for attaching to the eye includes an adhesive.
Claim 4
Dependent Claim
137 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; and means for attaching to the eye; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said means for attaching to the eye includes an adhesive.
Claim 5
Dependent Claim
129 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said wall is constructed from metal coated with plastic.
Claim 6
Dependent Claim
129 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said wall is constructed from metal coated with plastic.
Claim 7
Dependent Claim
135 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein the profile height and the profile width are less than or equal to 1.00 mm.
Claim 8
Dependent Claim
135 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein the profile height and the profile width are less than or equal to 1.00 mm.
Claim 9
Dependent Claim
129 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said wall is constructed from an infrared absorbent material.
Claim 10
Dependent Claim
129 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said wall is constructed from an infrared absorbent material.
Claim 11
Dependent Claim
128 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said wall is constructed from a fluorescent material.
Claim 12
Dependent Claim
128 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said wall is constructed from a fluorescent material.
Claim 13
Dependent Claim
135 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; and rotational registration points; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said rotational registration points are prongs directed inward from said wall.
Claim 14
Dependent Claim
135 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; and rotational registration points; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; and wherein said rotational registration points are prongs directed inward from said wall.
Claim 15
Dependent Claim
142 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; wherein the profile is of a substantially constant shape at all points on said wall; and wherein the profile is of a circular shape.
Claim 16
Dependent Claim
142 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; wherein the profile is of a substantially constant shape at all points on said wall; and wherein the profile is of a circular shape.
Claim 17
Dependent Claim
142 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; wherein the profile is of a substantially constant shape at all points on said wall and wherein the profile is of a triangular shape.
Claim 18
Dependent Claim
142 words
An aiming assistance fixture for providing improved performance of an eye tracking system used in conjunction with an eye, the eye tracking system having a range of observation of the eye, the eye including a treatment area in which a laser would remove tissue, said aiming assistance fixture comprising: a wall, said wall having a profile with a profile height and a profile width, said wall forming the periphery of a substantially closed shape, and said wall surrounding the area of treatment; wherein the shape formed by said wall is within the range of observation of the eye tracking system; wherein said wall is of sufficiently low mass such that it freely follows the movement of the eye; wherein the profile is of a substantially constant shape at all points on said wall and wherein the profile is of a triangular shape.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-07 | 2001-01-06 | 2001-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-07 | 2005-01-06 | 2005-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-07 | 2009-01-06 | 2009-07-08 | $7700.00 | Window Closed / Lapsed |