Steerable laser probe

• US 10,492,952 B2
• Filed: 10/02/2016
• Issued: 12/03/2019
• Est. Priority Date: 10/17/2011
• Status: Active Grant

• Current Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Original Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Inventors: Scheller, Gregg D, Zeid, Matthew N
• Primary Examiner(s): Neal, Timothy J
• Assistant Examiner(s): Chou, William B
• Application Number:
  US15/283,420
• Publication Number:
  US 20170020725A1
• Time in Patent Office: 1,157 Days
• Field of Search: 606 4- 6, 606 13, 606 15, 606 16, 600104, 600108, 600139, 600140, 600141, 600142, 600143, 600144, 600146-152
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00318 Steering mechanisms
• CPC Class Codes: A61B 2017/2918 flexible handles
• CPC Class Codes: A61B 2018/00184 Moving parts
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/00595 Cauterization
• 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: A61F 2009/00863 Retina
• CPC Class Codes: A61F 2009/00885 for treating a particular disease
• 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 25/0136 Handles therefor
• CPC Class Codes: A61M 25/0138 having flexible regions as a result of weakened outer material, e.g. slots, slits, cuts, joints or coils
• CPC Class Codes: A61M 25/0141 having flexible regions as a result of using materials with different mechanical properties
• CPC Class Codes: A61M 25/0147 with movable mechanical means, e.g. pull wires

Abstract

A steerable laser probe may include a handle having a handle distal end and a handle proximal end, a flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end, an actuation mechanism control of the handle, and an optic fiber disposed within an inner bore of the handle and within the flexible housing tube. An actuation of the actuation mechanism control may be configured to gradually curve the flexible housing tube. A gradual curving of the flexible housing tube may be configured to gradually curve the optic fiber. An actuation of the actuation mechanism control may be configured to gradually straighten the flexible housing tube. A gradual straightening of the flexible housing tube may be configured to gradually straighten the optic fiber.

Claims

1. A method comprising:

actuating an actuation mechanism control of a handle towards an actuation mechanism control guide distal end of an actuation mechanism control guide and away from an actuation mechanism control guide proximal end of the actuation mechanism control guide wherein the handle has a handle distal end and a handle proximal end;

extending an actuation mechanism relative to the handle proximal end wherein the actuation mechanism has an actuation mechanism distal end and an actuation mechanism proximal end and wherein the actuation mechanism distal end is disposed in a handle base of the handle and the actuation mechanism proximal end is disposed in a handle end cap of the handle;

extending a flexible housing tube housing relative to the handle proximal end;

extending a flexible housing tube relative to the handle proximal end wherein the flexible housing tube has a flexible housing tube distal end and a flexible, housing tube proximal end;

extending the flexible housing tube relative to an optic fiber wherein the optic fiber has an optic fiber distal end and an optic fiber proximal end;

resisting an extension of the flexible housing tube relative to the optic fiber; and

curving the optic fiber;

wherein the handle end cap of the handle includes a handle end cap distal end, a handle end cap proximal end, a handle base interface, and a handle base housing, the handle base disposed in the handle base housing wherein the handle end, cap interface is adjacent to the handle base interface and wherein the actuation mechanism is disposed in the handle end cap and the handle base wherein the actuation mechanism control is disposed in the actuation mechanism control guide, the actuation mechanism distal end is disposed in handle base, and the actuation mechanism proximal end is disposed in the handle end cap.

2. The method of claim 1 further comprising:

curving the flexible housing tube.

3. The method of claim 1 further comprising:

applying a force to a portion of the flexible housing tube.

4. The method of claim 1 further comprising:

compressing a portion of the flexible housing tube.

5. The method of claim 1 further comprising:

curving the optic fiber at least 45 degrees.

6. The method of claim 1 further comprising:

curving the optic fiber within an inner eye.

7. The method of claim 6 further comprising:

curving the optic fiber without increasing a length of the optic fiber within the inner eye.

8. The method of claim 6 further comprising:

curving the optic fiber without decreasing a length of the optic fiber within the inner eye.

9. The method of claim 1 wherein the flexible housing tube is manufactured from nitinol.

10. The method of claim 1 further comprising:

actuating the actuation mechanism control towards the actuation mechanism control guide proximal end and away from the actuation mechanism control guide distal end.

11. The method of claim 1 further comprising:

retracting the actuation mechanism relative to the handle proximal end.

12. The method of claim 1 further comprising:

retracting the flexible housing tube housing relative to the handle proximal end.

13. The method of claim 1 further comprising:

retracting the flexible housing tube relative to the handle proximal end.

14. The method of claim 1 further comprising:

retracting the flexible housing tube relative to the optic fiber.

15. The method of claim 1 further comprising:

facilitating a retraction of the flexible housing tube relative to the optic fiber.

16. The method of claim 1 further comprising:

straightening the optic fiber.

17. The method of claim 1 further comprising:

straightening the flexible housing tube.

18. The method of claim 1 wherein the flexible housing tube is manufactured from nitinol.

19. The method of claim 1 wherein the flexible housing tube is manufactured with dimensions for performing ophthalmic surgical procedures.

20. The method of claim 1 wherein the flexible housing tube is manufactured from a material having an ultimate tensile strength in a range of 700 to 1000 MPa.