Atraumatic microsurgical forceps

Patent metadata

Field	Value
Publication number	US-9226762-B2
Application number	US-201314067374-A
Country	US
Kind code	B2
Filing date	Oct 30, 2013
Priority date	Nov 7, 2012
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

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: a handle; an actuation structure of the handle 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 distal barb fitting disposed within the handle; a proximal barb fitting disposed within the handle; a tube having a tube distal end and a tube proximal end, the tube disposed within the handle wherein the tube distal end is disposed over the distal barb fitting forming a first hermetic seal and wherein the tube proximal end is disposed over the proximal barb fitting forming a second hermetic seal; a surgical blank having a surgical blank distal end and a surgical blank proximal end; a first atraumatic forceps jaw of the surgical blank having a first atraumatic forceps jaw distal end and a first atraumatic forceps jaw proximal end; a second atraumatic forceps jaw of the surgical blank having a second atraumatic forceps jaw distal end and a second atraumatic forceps jaw proximal end; and an actuation sleeve having an actuation sleeve distal end and an actuation sleeve proximal end, the actuation sleeve disposed over a portion of the surgical blank wherein a compression of the actuation structure is configured to extend the actuation sleeve distal end over the first atraumatic forceps jaw proximal end and the second atraumatic forceps jaw proximal end and wherein the compression of the actuation structure is configured to actuate the first atraumatic forceps jaw towards the second atraumatic forceps jaw and to actuate the second atraumatic forceps jaw towards the first atraumatic forceps jaw wherein the first atraumatic forceps jaw distal end and the second atraumatic forceps jaw distal end are configured to contact before any other portion of the first atraumatic forceps jaw contacts any other portion of the second atraumatic forceps jaw and wherein an amount of the first atraumatic forceps jaw in contact with the second atraumatic forceps jaw increases gradually from the first atraumatic forceps jaw distal end and the second atraumatic forceps jaw distal end towards the first atraumatic forceps jaw proximal end and the second atraumatic forceps jaw proximal end starting at a medial portion of the first atraumatic forceps jaw that is adjacent to the first atraumatic forceps jaw distal end and a medial portion of the second atraumatic forceps jaw that is adjacent to the second atraumatic forceps jaw distal end.

2. The instrument of claim 1 further comprising:
a first contour angle of the first atraumatic forceps jaw, the first contour angle of the first atraumatic forceps jaw in a range of 60 to 80 degrees; and
a first contour angle of the second atraumatic forceps jaw, the first contour angle of the second atraumatic forceps jaw in a range of 60 to 80 degrees.

3. The instrument of claim 2 further comprising:
a second contour angle of the first atraumatic forceps jaw, the second contour angle of the first atraumatic forceps jaw in a range of 100 to 120 degrees; and
a second contour angle of the second atraumatic forceps jaw, the second contour angle of the second atraumatic forceps jaw in a range of 100 to 120 degrees.

4. The instrument of claim 3 further comprising:
a third contour angle of the first atraumatic forceps jaw, the third contour angle of the first atraumatic forceps jaw in a range of 160 to 175 degrees; and
a third contour angle of the second atraumatic forceps jaw, the third contour angle of the second atraumatic forceps jaw in a range of 160 to 175 degrees.

5. The instrument of claim 1 further comprising:
a fourth contour angle of the first atraumatic forceps jaw, the fourth contour angle of the first atraumatic forceps jaw in a range of 60 to 80 degrees; and
a fourth contour angle of the second atraumatic forceps jaw, the fourth contour angle of the second atraumatic forceps jaw in a range of 60 to 80 degrees.

6. The instrument of claim 5 further comprising:
a fifth contour angle of the first atraumatic forceps jaw, the fifth contour angle of the first atraumatic forceps jaw in a range of 95 to 120 degrees; and
a fifth contour angle of the second atraumatic forceps jaw, the fifth contour angle of the second atraumatic forceps jaw in a range of 95 to 120 degrees.

7. The instrument of claim 1 further comprising:
a sixth contour angle of the first atraumatic forceps jaw, the sixth contour angle of the first atraumatic forceps jaw in a range of 60 to 80 degrees; and
a sixth contour angle of the second atraumatic forceps jaw, the sixth contour angle of the second atraumatic forceps jaw in a range of 60 to 80 degrees.

8. The instrument of claim 7 further comprising:
a seventh contour angle of the first atraumatic forceps jaw, the seventh contour angle of the first atraumatic forceps jaw in a range of 95 to 120 degrees; and
a seventh contour angle of the second atraumatic forceps jaw, the seventh angle of the second atraumatic forceps jaw in a range of 95 to 120 degrees.

9. The instrument of claim 1 further comprising:
an eighth contour angle of the first atraumatic forceps jaw, the eighth contour angle of the first atraumatic forceps jaw in a range of 60 to 80 degrees; and
an eighth contour angle of the second atraumatic forceps jaw, the eighth contour angle of the second atraumatic forceps jaw in a range of 60 to 80 degrees.

10. The instrument of claim 9 further comprising:
a ninth contour angle of the first atraumatic forceps jaw, the ninth contour angle of the first atraumatic forceps jaw in a range of 95 to 120 degrees; and
a ninth contour angle of the second atraumatic forceps jaw, the ninth contour angle of the second atraumatic forceps jaw in a range of 95 to 120 degrees.

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

12. The instrument of claim 11 wherein the first atraumatic forceps jaw distal end is separated from the second atraumatic forceps jaw distal end by 0.04 inches.

13. The instrument of claim 1 wherein the compression of the actuation structure is configured to separate a first tissue having a first convex surface geometry from a second tissue having a second convex surface geometry.

14. The instrument of claim 13 wherein the separation of the first tissue from the second tissue does not damage the second tissue.

15. The instrument of claim 1 further comprising:
a wire lock disposed within the actuation structure wherein a portion of the surgical blank is disposed in the wire lock.

16. The instrument of claim 1 further comprising: a handle base having a handle base distal end and a handle base proximal end wherein the handle base distal end is disposed in a handle base housing of the actuation structure.

17. The instrument of claim 16 further comprising: an end plug having an end plug distal end and an end plug proximal end wherein the end plug distal end is disposed in the handle base.

18. The instrument of claim 17 wherein the end plug comprises a luer hub.

19. The instrument of claim 18 further comprising: an inner nosecone having an inner nosecone distal end and an inner nosecone proximal end.

Assignees

• Katalyst Surgical Llc

Inventors

• Scheller Gregg D
• Awh Carl C

Classifications

• A61B2017/2918

  flexible handles · CPC title

• A61B2017/2933

  camming or guiding means · CPC title

• A61F9/00736 Primary

  Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments (A61F9/008 takes precedence) · CPC title

• A61B2017/2937

  with flexible part · CPC title

• A61B17/2909 Primary

  Handles · CPC title