Microsurgical handle and instrument

• US 10,299,816 B2
• Filed: 08/31/2017
• Issued: 05/28/2019
• Est. Priority Date: 09/24/2010
• 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): Ulsh, George J
• Application Number:
  US15/692,991
• Publication Number:
  US 20180021052A1
• Time in Patent Office: 635 Days
• Field of Search: 606205, 606207
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 17/30 Surgical pincettes without pivotal connectionsfor holding suture needles or materials A61B17/0483; wound clamps A61B17/08 ; hand-held gripping tools without pivotal connections in general B25B9/02
• CPC Class Codes: A61B 2017/2918 flexible handles
• CPC Class Codes: A61B 2017/2924 Translation movement of handle without rotating movement
• CPC Class Codes: A61B 2017/305 Tweezer like handles with tubular extensions, inner slidable actuating members and distal tools, e.g. microsurgical instruments
• CPC Class Codes: A61B 2090/0813 Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 90/70 Cleaning devices specially adapted for surgical instruments
• CPC Class Codes: A61F 9/007 Methods or devices for eye surgery
• CPC Class Codes: A61F 9/00754 for cutting or perforating the anterior lens capsule, e.g. capsulotomes
• CPC Class Codes: A63C 2203/065 replacing in the binding the shoe by another device
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing

Abstract

A microsurgical handle and instrument may include an actuation structure having an actuation structure distal end and an actuation structure proximal end, a plurality of actuation arms of the actuation structure, and an actuation structure base. A compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. A compression of the actuation structure may be configured to expand an extension joint of an actuation arm of the plurality of the actuation arms. A decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end. A decompression of the actuation structure may be configured to collapse an extension joint of an actuation arm of the plurality of actuation arms.

Claims

1. An instrument comprising:

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

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

an actuation sleeve having an actuation sleeve distal end and an actuation sleeve proximal end wherein the actuation sleeve is disposed in the nosecone;

an end plug having an end plug distal end and an end plug proximal end wherein the end plug is not disposed in the actuation structure;

a proximal barb fitting of the end plug; and

a tube having a tube distal end and a tube proximal end wherein the tube is disposed in the actuation structure and wherein the tube proximal end is disposed over the proximal barb fitting to form a first hermetic seal.

2. The instrument of claim 1 further comprising:

a distal barb fitting of the nosecone.

3. The instrument of claim 2 wherein the tube distal end is disposed over the distal barb fitting to form a second hermetic seal.

4. The instrument of claim 1 further comprising:

a wire lock disposed in the actuation structure.

5. The instrument of claim 1 further comprising:

a forceps shaft having a forceps shaft distal end and a forceps shaft proximal end wherein the forceps shaft is disposed in the actuation structure and the actuation sleeve.

6. The instrument of claim 5 wherein a compression of the actuation structure is configured to extend the actuation sleeve relative to the forceps shaft.

7. The instrument of claim 1 wherein a decompression of the actuation structure is configured to retract the actuation sleeve relative to the forceps shaft.

8. The instrument of claim 1 further comprising:

an actuation sleeve curved portion of the actuation sleeve.

9. The instrument of claim 1 wherein the actuation structure is manufactured by additive manufacturing.

10. The instrument of claim 1 wherein the actuation structure is manufactured by selective laser sintering.

11. An instrument comprising:

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

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

an actuation sleeve having an actuation sleeve distal end and an actuation sleeve proximal end wherein the actuation sleeve is disposed in the nosecone;

an end plug having an end plug distal end and an end plug proximal end wherein the end plug is not disposed in the actuation structure;

a distal barb fitting of the nosecone; and

a tube having a tube distal end and a tube proximal end wherein the tube is disposed in the actuation structure and wherein the tube distal end is disposed over the distal barb fitting to form a first hermetic seal.

12. The instrument of claim 11 further comprising:

a proximal barb fitting of the end plug.

13. The instrument of claim 12 wherein the tube proximal end is disposed over the proximal barb fitting to form a second hermetic seal.

14. The instrument of claim 11 further comprising:

a wire lock disposed in the actuation structure.

15. The instrument of claim 11 further comprising:

a forceps shaft having a forceps shaft distal end and a forceps shaft proximal end wherein the forceps shaft is disposed in the actuation structure and the actuation sleeve.

16. The instrument of claim 15 wherein a compression of the actuation structure is configured to extend the actuation sleeve relative to the forceps shaft.

17. The instrument of claim 15 wherein a decompression of the actuation structure is configured to retract the actuation sleeve relative to the forceps shaft.

18. The instrument of claim 11 further comprising:

an actuation sleeve curved portion of the actuation sleeve.

19. The instrument of claim 11 wherein the actuation structure is manufactured by additive manufacturing.

20. The instrument of claim 11 wherein the actuation structure is manufactured by selective laser sintering.