Surgical stapler with angled feeder belts

• US 8,496,155 B2
• Filed: 12/02/2011
• Issued: 07/30/2013
• Est. Priority Date: 05/29/2009
• Status: Active Grant

• Current Assignee: Touchstone International Medical Science Co. Ltd
• Original Assignee: Cardica Incorporated
• Inventors: Knodel, Bryan D.
• Primary Examiner(s): Long, Robert
• Application Number:
  US13/309,916
• Publication Number:
  US 20120074202A1
• Time in Patent Office: 606 Days
• Field of Search: 2271751-1821, 227/19, 227132-134, 606/219
• US Class Current: 227/176.1
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07228 Arrangement of the staples
• CPC Class Codes: A61B 2017/07264 characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395

Abstract

An exemplary surgical stapler may include a staple holder, including an upper surface with two substantially-planar angled surfaces positioned lateral to and angled relative to each other. The staple holder may include staple channels within it, and each staple channel may open to a corresponding angled surface. The stapler may also include at least one feeder belt extending into the staple holder and staples frangibly affixed to the feeder belt. Generally, at least one staple is held within a corresponding staple channel of the staple holder.

Claims

1. A surgical stapler, comprising:

a staple holder including an upper surface, said upper surface comprising two substantially-planar angled surfaces positioned lateral to and angled relative to each other;

a plurality of staple channels within said staple holder, wherein each of said staple channels opens to one of said angled surfaces, and wherein said staple channels lie in different planes relative to one another;

a feeder belt comprises at least one loop extending into said staple holder along a different plane from any of the planes along which said staple channels lie; and

a plurality of staples frangibly affixed to said feeder belt, wherein at least one of said staples is held within one of said staple channels.

2. The surgical stapler of claim 1, wherein said feeder belt is substantially parallel to a corresponding said angled surface.

3. The surgical stapler of claim 1, wherein said angled surfaces lie in two different intersecting planes.

4. The surgical stapler of claim 3, wherein said planes intersect above a longitudinal centerline of said staple holder.

5. The surgical stapler of claim 3, wherein said planes intersect above the upper surface of said staple holder.

6. The surgical stapler of claim 1, wherein said angled surfaces face away from one another.

7. The surgical stapler of claim 1, wherein said angled surfaces form an obtuse angle relative to one another, as measured about a longitudinal axis of said staple holder and through said staple holder.

8. The surgical stapler of claim 1, further comprising a plateau surface between said angled surfaces, which connects said angled surfaces.

9. The surgical stapler of claim 1, wherein at least one of said staple channels is oriented substantially perpendicular to a corresponding one of said angled surfaces.

10. The surgical stapler of claim 1, wherein at least two of said staple channels overlap one another as viewed along the longitudinal axis of said staple holder.

11. The surgical stapler of claim 1, further comprising a longitudinally-extending knife slot defined in said staple holder, said knife slot located laterally between at least two of said staple channels.

12. The surgical stapler of claim 1, wherein at least one of said staple channels is oriented in a different direction than at least one other of said staple channels.

13. The surgical stapler of claim 1, wherein said staple channels substantially form a V-shape as viewed along a longitudinal axis of said staple holder.

14. The surgical stapler of claim 1, wherein said plurality of staples is arranged in at least one longitudinally-extending row along said feeder belt.