Atraumatic microsurgical forceps

Patent metadata

Field	Value
Publication number	US-9795506-B2
Application number	US-201514953307-A
Country	US
Kind code	B2
Filing date	Nov 28, 2015
Priority date	Nov 7, 2012
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

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.

First claim

What is claimed is:

1. An instrument comprising:
an actuation structure having an actuation structure distal end and an actuation structure proximal end;
a plurality of actuation arms of the actuation structure;
an extension joint of each actuation arm of the plurality of actuation arms;
a surgical blank having a surgical blank distal end and a surgical blank proximal end wherein the surgical blank is manufactured with dimensions configured to perform ophthalmic surgical procedures;
an atraumatic forceps of the surgical blank;
a first atraumatic forceps jaw of the atraumatic forceps having a first atraumatic forceps jaw distal end and a first atraumatic forceps jaw proximal end;
a second atraumatic forceps jaw of the atraumatic forceps having a second atraumatic forceps jaw distal end and a second atraumatic forceps jaw proximal end;
an outer nosecone disposed in the actuation structure;
an inner nosecone disposed in the outer nosecone;
a distal barb of the inner nosecone wherein the distal barb is disposed in the actuation structure; and
a tube having a tube distal end and a tube proximal end, the tube disposed in the actuation structure wherein the tube distal end is disposed over the distal barb forming a first hermetic seal and wherein the tube proximal end is disposed over a proximal barb forming a second hermetic seal.

2. The instrument of claim 1 wherein the atraumatic forceps is manufactured by an electric discharge machine.

3. The instrument of claim 1 wherein the atraumatic forceps is manufactured by a laser.

4. The instrument of claim 1 wherein the atraumatic forceps is manufactured by a file.

5. The instrument of claim 1 wherein the atraumatic forceps is configured to separate a first tissue from a surface of a second tissue without damaging the second tissue.

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

7. The instrument of claim 5 wherein the second tissue has a convex surface geometry.

8. The instrument of claim 5 wherein the first tissue has a convex surface geometry and wherein the second tissue has a convex surface geometry.

9. The instrument of claim 1 wherein the actuation structure has a density in a range of 0.02 to 0.05 pounds per cubic inch.

10. The instrument of claim 1 wherein the actuation structure has a mass in a range of 0.005 to 0.025 pounds.

11. The instrument of claim 1 wherein the actuation structure has a volume in a range of 0.2 to 0.5 cubic inches.

12. The instrument of claim 1 wherein the actuation structure has a surface area in a range of 10.0 to 15.0 square inches.

13. The instrument of claim 1 wherein the actuation structure is configured to be used in an ophthalmic surgical procedure and then sterilized by a medical autoclave at least three times.

14. The instrument of claim 1 wherein the actuation structure is configured to be used in an ophthalmic surgical procedure and then sterilized by a medical autoclave more than three times.

15. The instrument of claim 1 wherein the actuation structure is manufactured from Nylon.

16. The instrument of claim 15 wherein the actuation structure is manufactured by selective laser sintering.

17. The instrument of claim 15 wherein the actuation structure is manufactured by additive manufacturing.

18. The instrument of claim 1 further comprising:
a wire lock disposed in the actuation structure.

19. The instrument of claim 1 wherein the first atraumatic forceps jaw distal end and the second atraumatic forceps jaw distal end are separated by a distance less than 0.005 inches.

20. The instrument of claim 1 wherein the first atraumatic forceps jaw distal end and the second atraumatic forceps jaw distal end are separated by a distance in a range of 0.005 to 0.08 inches.

Assignees

• Katalyst Surgical Llc

Inventors

• Scheller Gregg D
• Awh Carl C

Classifications

• A61B2017/2926

  Details of heads or jaws · CPC title

• A61B17/2909

  Handles · CPC title

• A61B2017/305

  Tweezer like handles with tubular extensions, inner slidable actuating members and distal tools, e.g. microsurgical instruments · CPC title

• A61B2017/2918

  flexible handles · CPC title

• A61B2017/2937

  with flexible part · CPC title