Staple with Multiple Cross Sectional Shapes

• US 20090177201A1
• Filed: 11/05/2008
• Published: 07/09/2009
• Est. Priority Date: 11/14/2007
• Status: Abandoned Application

• Current Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Soltz, Michael, Broom, Jennifer
• Application Number:
  US12/264,946
• Publication Number:
  US 20090177201A1
• Time in Patent Office: Days
• US Class Current: 606/75
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially

Abstract

Surgical staples having at least two different cross-sectional shapes are useful for fastening and securing tissue. The staples disclosed have portions with different cross-sectional shapes.

Claims

1. A staple comprising:

a first leg, a second leg, and a backspan extending therebetween;

the first leg and the second leg each having;

a first portion adjacent to the backspan and a second portion, wherein the first portion has a first cross-sectional shape and the second portion has a second cross-sectional shape;

the second cross-sectional shape being substantially curvilinear and the first cross-sectional shape being different than the second cross-sectional shape; and

,

the second portion defining at least one angled surface.

2. The staple according to claim 1, wherein the second cross-sectional shape comprises an oval.

3. The staple according to claim 1, wherein the second cross-sectional shape comprises a circle.

4. The staple according to claim 1, wherein the first cross-sectional shape is polygonal.

5. The staple according to claim 4, wherein the first cross-sectional shape is square.

6. The staple according to claim 4, wherein the first cross-sectional shape is rectangular.

7. The staple according to claim 1, wherein the at least one angled surface forms a sharp edge.

8. The staple according to claim 1, wherein the at least one angled surface defines a pyramid.

9. The staple according to claim 1, wherein the at least one angled surface defines a wedge.

10. The staple according to claim 1, wherein the at least one angled surface defines a cone.

11. A staple comprising:

a first leg, a second leg, and a backspan extending therebetween;

the first leg and the second leg each having;

a first portion adjacent to the backspan and a second portion adjacent a penetrating end, wherein the first portion has a first cross-sectional shape and the second portion has a second cross-sectional shape;

the second cross-sectional shape being substantially curvilinear and the first cross-sectional shape being different than the second cross-sectional shape; and

the penetrating end forms a sharp tip.

12. The staple according to claim 11, wherein the sharp tip defines a shape selected from the group consisting of a pyramid, wedge, cone, and tetrahedron.

13. The staple according to claim 11, wherein the first cross-sectional shape comprises an oval.

14. The staple according to claim 11, wherein the first cross-sectional shape comprises a circle.

15. The staple according to claim 11, wherein the second cross-sectional shape is polygonal.

16. The staple according to claim 15, wherein the second cross-sectional shape is square.

17. The staple according to claim 15, wherein the second cross-sectional shape is rectangular.

18. The staple according to claim 11, wherein the sharp tip comprises a sharp edge.

19. The staple according to claim 11, wherein the sharp tip comprises a sharp point.

20. The staple according to claim 11, wherein the sharp tip defines an apex.