Surgical stapler with angled staple bays

• US 8,070,034 B1
• Filed: 05/17/2010
• Issued: 12/06/2011
• 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): Low, Lindsay
• Application Number:
  US12/781,746
• Time in Patent Office: 568 Days
• Field of Search: 2271751-1821, 227132-134, 227/19, 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, where the upper surface includes two substantially-planar angled surfaces positioned lateral to and angled relative to each other; staple bays within the staple holder, each opening to a corresponding angled surface; and staples, where at least one staple is held within at least one staple bay. Another exemplary surgical stapler may include a staple holder; a first group of staple bays defined within the staple holder, the first group of staple bays lying substantially in a first plane; and a second group of staple bays defined within the staple holder, the second plurality of staple bays lying substantially in a second plane; where the first plane intersects the second plane.

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 bays within said staple holder, each opening to a corresponding said angled surface, wherein at least two said staple bays overlap one another as viewed along the longitudinal axis of said staple holder; and

a plurality of staples, wherein at least one staple is held within at least one said staple bay.

2. The surgical stapler of claim 1, further comprising a carrier, wherein a plurality of staples are frangibly affixed to said carrier.

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 the 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 the 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 said staple bay is oriented substantially perpendicular to the corresponding said angled surface.

10. 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 said staple bays.

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

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