Flexible, automated capsulorhexis device

• US 8,137,344 B2
• Filed: 12/10/2008
• Issued: 03/20/2012
• Est. Priority Date: 12/10/2008
• Status: Active Grant

• Current Assignee: Alcon Incorporated
• Original Assignee: Alcon Research Limited (Nestle SA)
• Inventors: Jia, Guangyao, Kao, Daniel J., Sussman, Glenn
• Primary Examiner(s): Peffley, Michael
• Assistant Examiner(s): Giuliani, Thomas
• Application Number:
  US12/331,800
• Publication Number:
  US 20100145447A1
• Time in Patent Office: 1,196 Days
• Field of Search: 606/28, 606/29, 607/99, 600/383
• US Class Current: 606/45
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61F 9/00754 for cutting or perforating the anterior lens capsule, e.g. capsulotomes
• CPC Class Codes: A61F 9/0079 using non-laser electromagnetic radiation, e.g. non-coherent light or microwaves

Abstract

A capsularhexis electrode device and corresponding insertion tool are disclosed. A flexible capsulorhexis electrode device comprises an elastomeric ring, first and second electrically conductive traces disposed at a first face of the elastomeric ring and extending concentrically around the elastomeric ring, and first and second electrically conductive connectors. The first and second electrically conductive connectors are electrically connected to the first and second traces, respectively, and are disposed at opposing points across the elastomeric ring from one another. An insertion tool includes first and second stretcher bars with connectors for mating to the electrode device. One of the stretcher bars translates relative to the other to elongate the flexible electrode device for insertion into the anterior chamber of the eye through a small incision.

Claims

1. A capsulorhexis electrode device, comprising:

an elastomeric ring;

first and second electrically conductive traces disposed at a first face of the elastomeric ring and extending concentrically around the elastomeric ring;

a first electrically conductive connector, electrically connected to the first trace; and

a second electrically conductive connector electrically connected to the second trace and disposed at an opposing point across the elastomeric ring from the first electrically conductive connector;

wherein at least one of the first and second electrically conductive connectors comprises a socket disposed in the elastomeric ring;

wherein said socket is accessible to a mating connector from a direction opposite the first face.

2. The capsulorhexis electrode device of claim 1, wherein at least one of the first and second electrically conductive traces comprises electrically conductive ink applied to the first face of the elastomeric ring.

3. The capsulorhexis electrode device of claim 1, wherein at least one of the first and second electrically conductive traces comprises adhesive strips applied to the first face of the elastomeric ring.

4. The capsulorhexis electrode device of claim 1, wherein the first trace extends completely around the elastomeric ring.

5. The capsulorhexis electrode device of claim 4, wherein the second trace extends completely around the elastomeric ring except for a discontinuity adjacent to an electrical connection between the first trace and the first electrically conductive connector.

6. The capsulorhexis electrode device of claim 1, wherein both the first and second electrically conductive connectors comprise a socket disposed in the elastomeric ring and wherein both sockets are accessible to corresponding mating connectors.

7. The capsulorhexis electrode device of claim 6, wherein the elastomeric ring is configured to be elongated when the sockets are engaged by the corresponding mating connectors and a distance between the corresponding mating connectors is increased.

8. A capsulorhexis electrode device, comprising:

an elastomeric ring;

first and second electrically conductive traces disposed at a first face of the elastomeric ring and extending concentrically around the elastomeric ring;

a first electrically conductive connector, electrically connected to the first trace; and

a second electrically conductive connector electrically connected to the second trace and disposed at an opposing point across the elastomeric ring from the first electrically conductive connector;

wherein at least one of the first and second electrically conductive connectors comprises a pin attached to and extending from the elastomeric ring;

wherein the pin extends from the elastomeric ring in a direction substantially opposite the first face.

9. The capsulorhexis electrode device of claim 8, wherein at least one of the first and second electrically conductive traces comprises electrically conductive ink applied to the first face of the elastomeric ring.

10. The capsulorhexis electrode device of claim 8, wherein at least one of the first and second electrically conductive traces comprises adhesive strips applied to the first face of the elastomeric ring.

11. The capsulorhexis electrode device of claim 8, wherein the first trace extends completely around the elastomeric ring.

12. The capsulorhexis electrode device of claim 11, wherein the second trace extends completely around the elastomeric ring except for a discontinuity adjacent to an electrical connection between the first trace and the first electrically conductive connector.

13. The capsulorhexis electrode device of claim 8, wherein both the first and second electrically conductive connectors comprise a pin attached to and extending from the elastomeric ring and wherein both pins are accessible to corresponding mating sockets on an insertion tool.

14. The capsulorhexis electrode device of claim 13, wherein the elastomeric ring is configured to be elongated when the pins are engaged by the corresponding mating sockets and a distance between the corresponding mating sockets is increased.