STEERABLE LASER PROBE

• US 20130116671A1
• Filed: 08/31/2012
• Published: 05/09/2013
• Est. Priority Date: 11/03/2011
• Status: Active Grant

• Current Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Original Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Inventors: Scheller, Gregg D., Moore, Craig, Zeid, Matthew N.
• Granted Patent: US 9,107,682 B2
• Time in Patent Office: Days
• US Class Current: 606/4
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 2017/00323 Cables or rods
• CPC Class Codes: A61B 2018/00172 Connectors and adapters therefor
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/0094 Types of switches or controllers
• CPC Class Codes: A61B 2018/20357 by movable optical fibre end
• CPC Class Codes: A61B 2018/2238 with means for selectively laterally deflecting the tip of the fibre
• CPC Class Codes: A61B 2018/225 Features of hand-pieces A61B2018/2255 takes precedence
• CPC Class Codes: A61B 2018/2288 the optical fibre cable having a curved distal end
• CPC Class Codes: A61B 2034/715 Cable tensioning mechanisms for removing slack
• CPC Class Codes: A61B 34/71 Manipulators operated by drive cable mechanisms
• CPC Class Codes: A61F 9/008 using laser
• CPC Class Codes: A61F 9/00821 for coagulation
• CPC Class Codes: A61F 9/00823 Laser features or special beam parameters therefor
• CPC Class Codes: A61M 25/0147 with movable mechanical means, e.g. pull wires

Abstract

A steerable laser probe may include a handle, an actuation lever, an optic fiber, and a housing tube. The housing tube may have a first housing tube portion having a first stiffness and a second housing tube portion having a second stiffness. The second stiffness may be greater than the first stiffness. The optic fiber may be disposed within the housing tube and within an inner bore of the handle. An actuation of the actuation lever about a pivot pin of the handle may gradually curve the optic fiber. An actuation of the actuation lever about the pivot pin of the handle may gradually straighten the optic fiber.

Claims

1. An instrument comprising:

a handle having a handle distal end and a handle proximal end;

an actuation channel of the handle, the actuation channel having an actuation channel distal end and an actuation channel proximal end;

an actuation lever having an actuation lever distal end and an actuation lever proximal end, at least a portion of the actuation lever disposed in the actuation channel;

a pivot pin disposed in a pivot pin housing of the handle and a pivot pin guide of the actuation lever;

a housing tube having a housing tube distal end and a housing tube proximal end, the housing tube having dimensions configured to perform an ophthalmic surgical procedure;

a first housing tube portion of the housing tube, the first housing tube portion having a first stiffness;

a second housing tube portion of the housing tube, the second housing tube portion having a second stiffness wherein the second stiffness is greater than the first stiffness; and

an optic fiber having an optic fiber distal end and an optic fiber proximal end, the optic fiber disposed in an inner bore of the handle and the housing tube.

2. The instrument of claim 1 wherein an actuation of the actuation lever about the pivot pin in a clockwise direction is configured to gradually curve the optic fiber.

3. The instrument of claim 2 wherein the actuation of the actuation lever about the pivot pin in the clockwise direction is configured to retract the optic fiber relative to the housing tube.

4. The instrument of claim 2 wherein the actuation of the actuation lever about the pivot pin in the clockwise direction is configured to gradually curve the housing tube.

5. The instrument of claim 4 wherein the actuation of the actuation lever about the pivot pin in the clockwise direction is configured to compress the first housing tube portion.

6. The instrument of claim 1 wherein an actuation of the actuation lever about the pivot pin in a counter-clockwise direction is configured to gradually straighten the optic fiber.

7. The instrument of claim 6 wherein the actuation of the actuation lever about the pivot pin in the counter-clockwise direction is configured to extend the optic fiber relative to the housing tube.

8. The instrument of claim 6 wherein the actuation of the actuation lever about the pivot pin in the counter-clockwise direction is configured to gradually straighten the housing tube.

9. The instrument of claim 8 wherein the actuation of the actuation lever about the pivot pin in the counter-clockwise direction is configured to decompress the first housing tube portion.

10. The instrument of claim 1 further comprising:

a wire proximal loop housing of the actuation lever; and

a wire having a wire distal end and a wire proximal loop, the wire disposed in the housing tube, the inner bore of the handle, and the wire proximal loop housing of the actuation lever.

11. The instrument of claim 10 wherein an actuation of the actuation lever about the pivot pin in a clockwise direction is configured to gradually curve the optic fiber.

12. The instrument of claim 11 wherein the actuation of the actuation lever about the pivot pin in the clockwise direction is configured to retract the wire relative to the housing tube.

13. The instrument of claim 11 wherein the actuation of the actuation lever about the pivot pin in the clockwise direction is configured to gradually curve the housing tube.

14. The instrument of claim 13 wherein the actuation of the actuation lever about the pivot pin in the clockwise direction is configured to compress the first housing tube portion.

15. The instrument of claim 1 further comprising:

a pulley mechanism of the handle; and

a draw wire having a draw wire distal end and a draw wire proximal end, the draw wire distal end disposed in the housing tube and the draw wire proximal end disposed in a draw wire proximal end housing of the actuation lever.

16. The instrument of claim 16 wherein the draw wire is looped around the pulley mechanism of the handle.

17. The instrument of claim 16 wherein an actuation of the actuation lever about the pivot pin in a counter-clockwise direction is configured to gradually curve the optic fiber.

18. The instrument of claim 17 wherein the actuation of the actuation lever about the pivot pin in the counter-clockwise direction is configured to retract the draw wire relative to the housing tube.

19. The instrument of claim 17 wherein the actuation of the actuation lever about the pivot pin in the counter-clockwise direction is configured to gradually curve the housing tube.

20. The instrument of claim 19 wherein the actuation of the actuation lever about the pivot pin in the counter-clockwise direction is configured to compress the first housing tube portion.