Atraumatic microsurgical forceps

• US 10,413,445 B2
• Filed: 09/14/2017
• Issued: 09/17/2019
• Est. Priority Date: 11/07/2012
• Status: Active Grant

• Current Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Original Assignee: Katalyst Surgical, LLC (Carl-Zeiss-Stiftung)
• Inventors: Scheller, Gregg D, Awh, Carl C
• Primary Examiner(s): Ulsh, George J
• Application Number:
  US15/704,208
• Publication Number:
  US 20180000643A1
• Time in Patent Office: 733 Days
• Field of Search: 606205, 606207
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 2017/2918 flexible handles
• CPC Class Codes: A61B 2017/2926 Details of heads or jaws
• CPC Class Codes: A61B 2017/2933 camming or guiding means
• CPC Class Codes: A61B 2017/2937 with flexible part
• 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: A61F 9/00736 Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments A61F9/008 takes precedence

Abstract

An atraumatic microsurgical forceps may include an actuation structure, an actuation sleeve having an actuation sleeve distal end and an actuation sleeve proximal end, a surgical blank, and atraumatic forceps jaws of the surgical blank having atraumatic forceps jaws distal ends and atraumatic forceps jaws proximal ends. The surgical blank may be disposed within the actuation sleeve wherein at least a portion of the atraumatic forceps jaws extends from the actuation sleeve distal end. A compression of the actuation structure may be configured to gradually extend the actuation sleeve over the atraumatic forceps jaws proximal ends. An extension of the actuation sleeve over the atraumatic forceps jaws proximal ends may be configured to gradually close the atraumatic forceps jaws wherein the atraumatic forceps jaws initially contact at the atraumatic forceps jaws distal ends.

Claims

1. A method comprising:

compressing an actuation structure of an instrument wherein the actuation structure has an actuation structure distal end and an actuation structure proximal end;

extending a nosecone relative to a surgical blank wherein the nosecone has a nosecone distal end and a nosecone proximal end and wherein the surgical blank has a surgical blank distal end and a surgical blank proximal end and wherein the nosecone has a first barb and wherein the instrument has a tube having a tube distal end and a tube proximal end and wherein the tube distal end interfaces with the first barb and forms a first hermetic seal; and

extending an actuation sleeve relative to the surgical blank wherein the actuation sleeve has an actuation sleeve distal end and an actuation sleeve proximal end.

2. The method of claim 1 further comprising:

closing an atraumatic forceps.

3. The method of claim 2 further comprising:

grasping an internal limiting membrane.

4. The method of claim 3 further comprising:

separating the internal limiting membrane from a retina.

5. The method of claim 2 further comprising:

grasping a first tissue.

6. The method of claim 5 wherein the first tissue has a convex surface geometry.

7. The method of claim 5 further comprising:

separating the first tissue from a second tissue.

8. The method of claim 7 wherein the second tissue has a convex surface geometry.

9. The method of claim 1 further comprising:

extending the actuation structure distal end relative to the actuation structure proximal end.

10. The method of claim 1 further comprising:

rotating the actuation structure.

11. The method of claim 1 further comprising:

sterilizing the instrument in a medical autoclave.

12. The method of claim 1 wherein the actuation structure is manufactured from nylon.

13. The method of claim 1 further comprising:

decompressing the actuation structure.

14. The method of claim 13 further comprising:

retracting the nosecone relative to the surgical blank.

15. The method of claim 13 further comprising:

retracting the actuation sleeve relative to the surgical blank.

16. The method of claim 13 further comprising:

opening an atraumatic forceps.

17. The method of claim 1 wherein the surgical blank is disposed in a wire lock.

18. The method of claim 1 wherein the instrument has a second barb.

19. The method of claim 1 wherein the tube proximal end interfaces with the second barb.

20. The method of claim 19 wherein the tube proximal end interfaces with the second barb and forms a second hermetic seal.