Surgical stapling apparatus including an anvil and cartridge each having cooperating mating surfaces

• US 20050189397A1
• Filed: 04/25/2005
• Published: 09/01/2005
• Est. Priority Date: 04/11/2002
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group (Medtronic Plc)
• Inventors: Jankowski, Bruce K.
• Granted Patent: US 8,800,840 B2
• Time in Patent Office: Days
• US Class Current: 227/176.100
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• 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 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge

Abstract

Surgical stapling apparatus are disclosed including an anvil having a working surface with a shaped topography, and a staple cartridge, in juxtaposition with the anvil. The staple cartridge includes a working surface with shaped topography which is complementary to the shaped topography of the working surface of the shaped anvil. When the anvil and the staple cartridge are approximated with or toward one another, at least a portion of the working surface of the anvil cooperates with at least a portion of the working surface of the staple cartridge to enhance alignment of the staple cartridge and the anvil in at least one of a transverse and longitudinal direction.

Claims

1. A surgical stapling apparatus, comprising:

an anvil having a working surface with a shaped topography; and

a staple cartridge having a working surface in juxtaposition with the anvil, the working surface of the staple cartridge having a shaped topography which is complementary to the shaped topography of the working surface of the shaped anvil, such that when the anvil and the staple cartridge are approximated with one another with tissue therebetween, cooperation of at least a portion of the working surface of the anvil with at least a portion of the working surface of the staple cartridge enhances alignment of the staple cartridge and the anvil in at least one of a transverse and longitudinal direction, wherein at least one of the anvil and staple cartridge define a longitudinal axis, the working surface of the anvil being angled with respect to the longitudinal axis of the anvil.

2. The surgical stapling apparatus of claim 1, wherein at least one of the anvil and the staple cartridge has a V-shaped cross-sectional profile.

3. The surgical stapling apparatus of claim 1, wherein at least one of the anvil and the staple cartridge has a topographical surface undulating in at least one of a transverse and a longitudinal direction.

4. The surgical stapling apparatus of claim 1, wherein the working surface of the anvil is angled to one of decline and incline from the distal end to the proximal end of the anvil.

5. A surgical stapling apparatus, comprising:

an anvil having a working surface with a shaped topography, the working surface being angled relative to a longitudinal axis of the surgical stapling apparatus; and

a staple cartridge having a working surface in juxtaposition with the anvil, the working surface of the staple cartridge being angled relative to the longitudinal axis of the surgical stapling apparatus and having a shaped topography which is complementary to the shaped topography of the working surface of the shaped anvil, such that when the anvil and the staple cartridge are approximated with one another with tissue therebetween, cooperation of at least a portion of the working surface of the anvil with at least a portion of the working surface of the staple cartridge enhances alignment of the staple cartridge and the anvil in at least one of a transverse and longitudinal direction.