Steerable laser probe

• US 9,326,892 B2
• Filed: 06/18/2015
• Issued: 05/03/2016
• Est. Priority Date: 09/17/2011
• Status: Active Grant

• Current Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Original Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Inventors: Scheller, Gregg D, Moore, Craig, Zeid, Matthew N
• Primary Examiner(s): Farah, Ahmed
• Application Number:
  US14/743,653
• Publication Number:
  US 20150282989A1
• Time in Patent Office: 320 Days
• Field of Search: 606/1, 606/4, 606/6, 606 13- 16, 607 88- 92
• US Class Current: 1/1
• 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 2017/00331 with preformed bends
• CPC Class Codes: A61B 2017/00336 with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2018/00184 Moving parts
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/0091 Handpieces of the surgical instrument or device
• 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 2018/2244 Features of optical fibre cables, e.g. claddings
• CPC Class Codes: A61B 2018/2288 the optical fibre cable having a curved distal end
• CPC Class Codes: A61F 2009/00863 Retina
• CPC Class Codes: A61F 2009/00874 Vitreous
• CPC Class Codes: A61F 9/00821 for coagulation
• CPC Class Codes: A61F 9/00823 Laser features or special beam parameters therefor

Abstract

A steerable laser probe may include a handle having a handle distal end and a handle proximal end, a housing sleeve disposed in an inner bore of the handle configured to project a distance from the handle distal end, an optic fiber disposed in the housing sleeve, a shape memory sleeve disposed over a distal end of the optic fiber, and a light source configured to connect to a proximal end of the optic fiber. The shape memory sleeve may be configured to curve the distal end of the optic fiber at an angle, e.g., 90 degrees, when the shape memory sleeve is not contained within the housing sleeve.

Claims

1. An instrument comprising:

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

an actuation structure of the handle;

a plurality of actuation arms of the actuation structure;

a nosecone having a nosecone distal end and a nosecone proximal end;

an actuation guide of the nosecone;

an actuation mechanism having an actuation mechanism distal end and an actuation mechanism proximal end;

an actuation guide interface of the actuation mechanism configured to interface with the actuation guide;

a housing sleeve having a housing sleeve distal end and a housing sleeve proximal end wherein the housing sleeve is disposed in the nosecone;

a shape memory sleeve having a shape memory sleeve distal end and a shape memory sleeve proximal end, the shape memory sleeve at least partially disposed in the housing sleeve;

a pre-bent angle of the shape memory sleeve; and

an optic fiber having an optic fiber distal end and an optic fiber proximal end, the optic fiber disposed in the shape memory sleeve and in an inner bore of the handle.

2. The instrument of claim 1 wherein a compression of the actuation structure is configured to gradually curve the optic fiber.

3. The instrument of claim 2 wherein the compression of the actuation structure is configured to actuate the shape memory sleeve and the optic fiber relative to the housing sleeve.

4. The instrument of claim 3 wherein the compression of the actuation structure is configured to extend the shape memory sleeve and the optic fiber relative to the housing sleeve.

5. The instrument of claim 4 wherein the compression of the actuation structure is configured to extend the shape memory sleeve and the optic fiber out from the housing sleeve distal end.

6. The instrument of claim 5 wherein the compression of the actuation structure is configured to extend the actuation mechanism relative to the handle proximal end.

7. The instrument of claim 1 further comprising:

a pressure mechanism having a pressure mechanism distal end and a pressure mechanism proximal end wherein the pressure mechanism is configured to provide a force.

8. The instrument of claim 7 wherein the force is a resistive force configured to resist an extension of the actuation mechanism relative to the handle proximal end.

9. The instrument of claim 1 wherein the shape memory sleeve is manufactured from nitinol.

10. The instrument of claim 1 wherein compressing the actuation structure a first amount is configured to curve the optic fiber to a first angle and aim the optic fiber distal end at a first photocoagulation target.

11. The instrument of claim 10 wherein compressing the actuation structure a second amount is configured to curve the optic fiber to a second angle and aim the optic fiber distal end at a second photocoagulation target.

12. The instrument of claim 11 wherein the second angle is greater than the first angle.

13. The instrument of claim 11 wherein the second angle is less than the first angle.

14. The instrument of claim 11 wherein rotating the actuation structure is configured to aim the optic fiber distal end at a third photocoagulation target.

15. The instrument of claim 1 wherein a decompression of the actuation structure is configured to gradually straighten the optic fiber.

16. An instrument comprising:

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

an actuation structure of the handle;

a plurality of actuation arms of the actuation structure;

a nosecone having a nosecone distal end and a nosecone proximal end;

an actuation guide of the nosecone;

an actuation mechanism having an actuation mechanism distal end and an actuation mechanism proximal end;

an actuation guide interface of the actuation mechanism configured to interface with the actuation guide;

a housing sleeve having a housing sleeve distal end and a housing sleeve proximal end wherein the housing sleeve is disposed in the nosecone;

a shape memory sleeve having a shape memory sleeve distal end and a shape memory sleeve proximal end, the shape memory sleeve at least partially disposed in the housing sleeve;

a pre-bent angle of the shape memory sleeve; and

an optic fiber having an optic fiber distal end and an optic fiber proximal end, the optic fiber disposed in the shape memory sleeve and in an inner bore of the handle wherein a compression of the actuation structure is configured to gradually curve the optic fiber.

17. The instrument of claim 16 wherein the compression of the optic fiber is configured to aim the optic fiber distal end at a photocoagulation target.

18. The instrument of claim 16 wherein a decompression of the actuation structure is configured to gradually straighten the optic fiber.

19. An instrument comprising:

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

an actuation structure of the handle;

a plurality of actuation arms of the actuation structure;

a nosecone having a nosecone distal end and a nosecone proximal end;

an actuation guide of the nosecone;

an actuation mechanism having an actuation mechanism distal end and an actuation mechanism proximal end;

an actuation guide interface of the actuation mechanism configured to interface with the actuation guide;

a housing sleeve having a housing sleeve distal end and a housing sleeve proximal end wherein the housing sleeve is disposed in the nosecone;

a shape memory sleeve having a shape memory sleeve distal end and a shape memory sleeve proximal end, the shape memory sleeve at least partially disposed in the housing sleeve;

a pre-bent angle of the shape memory sleeve; and

an optic fiber having an optic fiber distal end and an optic fiber proximal end, the optic fiber disposed in the shape memory sleeve and in an inner bore of the handle wherein a decompression of the actuation structure is configured to gradually straighten the optic fiber.

20. The instrument of claim 19 wherein a compression of the actuation structure is configured to gradually curve the optic fiber.