IP Library Granted Patent US 8,186,357
Granted Patent B2
US 8,186,357 · App. 10/764,311 · Granted May 29, 2012

Control device for a surgical laser

Assignee: Rowiak GmbH
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Quick Facts
Patent No.
US 8,186,357
App. No.
10/764,311
Granted
May 29, 2012
Kind
B2
Abstract

The invention concerns surgical lasers and their controllers as well as methods for the treatment of an eye lens, especially for the treatment of presbyopia.

Claims (9)

1. A method for the treatment of an eye lens, wherein a cut surface is produced inside the crystalline eye lens using multiple laser pulses, and wherein two or more cut surfaces are produced simultaneously in a predetermined arrangement relative to one another, wherein a cut area with a surface area of 1 mm 2 to 10 mm 2 is produced.

2. The method according to claim 1 , wherein bubbles are produced in the eye lens by the laser pulse, the bubbles having a diameter of at most 50 μm.

3. The method according to claim 1 , wherein the thickness of the cut surface is limited to at most 5 μm.

4. The method according to claim 1 , wherein the cut area is produced by at least 10,000 laser pulses.

5. The method according to claim 1 , wherein two successive laser pulses are produced at a distance from one another in such a way that the faults produced by the laser pulses in the eye lens do not touch or overlap one another.

6. The method according to claim 1 , wherein multiple cut surfaces are produced in a predetermined arrangement relative to one another.

7. The method according to claim 1 , wherein the two or more cut surfaces are produced having forms or partial surfaces of the following bodies: spherical, spherical segment, spherical sector, spherical layer, prismatoid or prism with elliptical, elliptic annular, circular, annular, parallelepipedidal, parallelogram-shaped, rectangular, square, triangular or irregular base area and lateral area, where the base area and lateral area can be flat or curved in order to increase the ability of accommodation of an eye lens by at least two diopters.

8. The method according to claim 1 , wherein a cut surface is produced inside the eye lens and the elasticity of the crystalline eye lens is enhanced by the cut surface having forms or partial surfaces of the following bodies: spherical, spherical segment, spherical sector, spherical layer, prismatoid or prism with elliptical, elliptic annular, circular, annular, parallelepipedidal, parallelogram-shaped, rectangular, square, triangular or irregular base area and lateral area, where the base area and lateral area can be flat or curved.

9. The method according to claim 1 , wherein the pulse energy of each of the laser pulses is limited to a range from 1 pJ to 1 μJ.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2023
From: ROWIAK GMBH
To: ZIEMER OPHTHALMIC SYSTEMS AG
Reel/Frame 064345/0916 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2004
From: KOELN, LASERFORUM FORUM FOR LASER-AND MIKROCHIRURGIE DES AUGES E.V.
To: ROWIAK GMBH
Reel/Frame 015893/0528 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2004
From: LUBATSCHOWSKI, HOLGER; RIPKEN, TAMMO; OBERHEIDE, UWE
To: LASERFORUM KOELN FORUM FOR LASER-AND MIKROCHIRURGIE DES AUGES E.V.
Reel/Frame 015087/0710 →
Continuity (1)
Related Publication 20050165387A1 · Jul 28, 2005