USPTO Patent US12582552B2: Radiant Exposure at Retina During Ophthalmic Procedure
Summary
The USPTO has granted patent US12582552B2 to Alcon Inc. for a system and method to determine radiant exposure at the retina during ophthalmic procedures. The patent describes a laser system that calculates radiant exposure based on the distance between the laser target and the retina.
What changed
The United States Patent and Trademark Office (USPTO) has granted patent US12582552B2 to Alcon Inc. This patent covers an ophthalmic laser system designed to measure and calculate radiant exposure at the retina during surgical procedures. The system utilizes a laser device, an ophthalmic microscope with a z-direction sensor, and a controller to determine the distance between the focal point of the microscope and the retina, subsequently calculating the radiant exposure. The patent was filed on October 7, 2022, and granted on March 24, 2026.
This patent grant is primarily an intellectual property matter and does not impose direct regulatory compliance obligations on other entities. However, it may impact medical device manufacturers and healthcare providers involved in ophthalmic laser procedures by potentially defining the scope of available technology and requiring licensing for use of the patented methods or systems. Companies developing similar technologies should review the patent claims to ensure freedom to operate.
Archived snapshot
Mar 24, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Determining radiant exposure at the retina during an ophthalmic procedure
Grant US12582552B2 Kind: B2 Mar 24, 2026
Assignee
Alcon Inc.
Inventors
Zsolt Bor
Abstract
In certain embodiments, an ophthalmic laser system includes a laser device, an ophthalmic microscope, a z-direction sensor, and a controller. The laser device directs a laser beam towards a target within an eye. The ophthalmic microscope receives light from a focal point within the eye to provide an image of an object at the focal point. The z-direction sensor determines the z-position corresponding to the focal point of the ophthalmic microscope. The controller determines a position Z0, the z-position where the focal point of the ophthalmic microscope is at the retina of the eye; determines a position Z, the z-position where the focal point of the ophthalmic microscope is at the target within the eye; calculates a target-to-retina distance ΔZ according to a difference between the position Z and the position Z0; and calculates a radiant exposure He at the retina according to the target-to-retina distance ΔZ.
CPC Classifications
A61F 9/008-009
Filing Date
2022-10-07
Application No.
17938877
Claims
11
Related changes
Get daily alerts for USPTO Patent Grants - Prosthetics (A61F)
Daily digest delivered to your inbox.
Free. Unsubscribe anytime.
Source
About this page
Every important government, regulator, and court update from around the world. One place. Real-time. Free. Our mission
Source document text, dates, docket IDs, and authority are extracted directly from USPTO.
The summary, classification, recommended actions, deadlines, and penalty information are AI-generated from the original text and may contain errors. Always verify against the source document.
Classification
Who this affects
Taxonomy
Browse Categories
Get alerts for this source
We'll email you when USPTO Patent Grants - Prosthetics (A61F) publishes new changes.
Subscribed!
Optional. Filters your digest to exactly the updates that matter to you.