Articulated surgical instrument

• US 7,918,376 B1
• Filed: 03/09/2009
• Issued: 04/05/2011
• Est. Priority Date: 03/09/2009
• Status: Active Grant

• Current Assignee: Touchstone International Medical Science Co. Ltd
• Original Assignee: Cardica Incorporated
• Inventors: White, Nathan H., Knodel, Bryan D., Thompson, Bennie, Manoux, Philipe R.
• Primary Examiner(s): Rada; Rinaldi I.
• Assistant Examiner(s): LOW, LINDSAY M
• Application Number:
  US12/400,760
• Time in Patent Office: 757 Days
• Field of Search: 439/447, 439/173
• US Class Current: 227/175.1
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/2908 Multiple segments connected by articulations
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft

Abstract

One example of a surgical instrument may include a handle, an end effector, and a shaft that connects the handle to the end effector, where the shaft includes an articulated region. At least one feeder belt may extend through the lumen of the shaft into the end effector, where at least one feeder belt may include at least one staple frangibly connected thereto.

Claims

1. Surgical apparatus, comprising:

an end effector wherein said end effector includes at least one opening in the proximal end thereof;

a shaft connected to said end effector, wherein said shaft comprises a surface, a lumen defined therein, an outer perimeter about the longitudinal centerline, and an articulated region including a plurality of slots defined in said shaft, wherein at least two said slots extend over greater than half of the perimeter of said shaft and are oriented relative to one another such that every line on the surface of said shaft that is parallel to the longitudinal centerline of said shaft crosses at least one said slot; and

at least one feeder belt including a plurality of staples, wherein each said staple comprises a first end frangibly affixed to a corresponding said feeder belt, wherein each said first end is affixed to said feeder belt at a location laterally spaced from the longitudinal centerline of said feeder belt, and a second free end; and

wherein said staples form at least one row, each said row including at least two said staples, wherein at least one said feeder belt extends along said lumen of said shaft and into said end effector through said opening in said proximal end of said end effector.

2. The surgical apparatus of claim 1, wherein at least one said slot is angled.

3. The surgical apparatus of claim 1, further comprising at least one cable extending from said end effector through said lumen.

4. The surgical apparatus of claim 1, wherein said end effector is interchangeable on said shaft.

5. The surgical apparatus of claim 1, wherein a proximal portion of said shaft is rotatable about its longitudinal axis.

6. The surgical apparatus of claim 1, wherein said shaft is generally tubular.