Steerable laser probe

• US 10,070,923 B2
• Filed: 08/23/2017
• Issued: 09/11/2018
• Est. Priority Date: 07/31/2012
• 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): Thomson, William
• Assistant Examiner(s): Lukjan, Sebastian X
• Application Number:
  US15/683,927
• Publication Number:
  US 20170367763A1
• Time in Patent Office: 384 Days
• CPC Class Codes: A61B 18/20 using laser
• 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 2018/00589 Coagulation
• 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: A61F 2009/00863 Retina
• CPC Class Codes: A61F 9/00821 for coagulation

Abstract

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

Claims

1. A laser probe comprising:

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

an actuation mechanism guide of the handle;

an actuation mechanism having an actuation mechanism distal end and an actuation mechanism proximal end wherein the actuation mechanism is disposed in the actuation mechanism guide and wherein the actuation mechanism is disposed between a handle end cap and a handle base;

a proximal chamber of the handle;

a flexible housing tube housing of the actuation mechanism;

a plurality of actuation control guides of the handle wherein each actuation control guide of the plurality of actuation control guides has an actuation control guide distal end and an actuation control guide proximal end;

a plurality of actuation controls wherein each actuation control of the plurality of actuation controls has an actuation control distal end and an actuation control proximal end and wherein each actuation control of the plurality of actuation controls is disposed in an actuation control guide of the plurality of actuation control guides and wherein an actuation of an actuation control of the plurality of actuation controls is configured to actuate each actuation control of the plurality of actuation controls;

a single flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end wherein the flexible housing tube proximal end is disposed in the flexible housing tube housing and wherein the flexible housing tube is fixed in the housing tube housing and wherein the flexible housing tube distal end extends from the handle distal end and wherein the flexible housing tube is manufactured from nitinol having an ultimate tensile strength in a range of 700 to 1000 MPa;

a cable having a cable distal end and a cable proximal end wherein the cable is disposed in the handle and the flexible housing tube and wherein a portion of the cable is fixed in the flexible housing tube; and

an optic fiber having an optic fiber distal end and an optic fiber proximal end wherein the optic fiber is disposed in the handle and the flexible housing tube and wherein an actuation of the actuation control of the plurality of actuation controls towards an actuation control guide distal end and away from an actuation control guide proximal end is configured to extend the flexible housing tube relative to the optic fiber proximal end and curve the optic fiber.

2. The laser probe of claim 1 wherein the actuation of the actuation control of the plurality of actuation controls towards the actuation control guide distal end and away from the actuation control guide proximal end is configured to curve the optic fiber less than 45 degrees.

3. The laser probe of claim 1 wherein the actuation of the actuation control of the plurality of actuation controls towards the actuation control guide distal end and away from the actuation control guide proximal end is configured to curve the optic fiber more than 45 degrees.

4. The laser probe of claim 1 wherein the actuation of the actuation control of the plurality of actuation controls towards the actuation control guide distal end and away from the actuation control guide proximal end is configured to curve the flexible housing tube.

5. The laser probe of claim 1 wherein the actuation of the actuation control of the plurality of actuation controls towards the actuation control guide distal end and away from the actuation control guide proximal end is configured to apply a force to a portion of the flexible housing tube.

6. The laser probe of claim 1 wherein the actuation of the actuation control of the plurality of actuation controls towards the actuation control guide distal end and away from the actuation control guide proximal end is configured to compress a portion of the flexible housing tube.

7. The laser probe of claim 1 wherein the actuation of the actuation control of the plurality of actuation controls towards the actuation control guide distal end and away from the actuation control guide proximal end is configured to actuate the actuation mechanism towards the handle distal end and away from the handle proximal end.

8. The laser probe of claim 1 wherein the actuation of the actuation control of the plurality of actuation controls towards the actuation control guide distal end and away from the actuation control guide proximal end is configured to extend the actuation mechanism relative to the optic fiber proximal end.

9. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to straighten the optic fiber.

10. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to straighten the optic fiber less than 45 degrees.

11. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to straighten the optic fiber more than 45 degrees.

12. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to straighten the flexible housing tube.

13. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to retract the flexible housing tube relative to the optic fiber proximal end.

14. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to reduce a force applied to a portion of the flexible housing tube.

15. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to decompress a portion of the flexible housing tube.

16. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to actuate the actuation mechanism towards the handle proximal end and away from the handle distal end.

17. The laser probe of claim 1 wherein an actuation of the actuation control of the plurality of actuation controls towards the actuation control guide proximal end and away from the actuation control guide distal end is configured to retract the actuation mechanism relative to the optic fiber proximal end.

18. The laser probe of claim 1 further comprising:

a light source interface configured to interface with the optic fiber proximal end.

19. The laser probe of claim 18 where in the light source interface is an SMA connector.

20. The laser probe of claim 1 further comprising:

a polyimide buffer of the optic fiber.