← Back to Patent Explorer
US5355897A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of performing a pyloroplasty/pylorectomy using a stapler having a shield

Assignee: Ethicon Inc
•
Filing: 1992-04-16
•
Granted: 1994-10-18
•
Expires: 2012-04-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A pyloroplasty/pylorectomy shield having a base member and a proximally extending shield member. The pyloroplasty/pylorectomy shield has attachment means for engagement with a circular stapler. The pyloroplasty/pylorectomy shield also has dilation means for progressively dilating a sphincter. The pyloroplasty/pylorectomy shield is used with a circular stapler to perform a pyloroplasty/pylorectomy. Also disclosed is a method of performing a pyloroplasty/pylorectomy using the pyloroplasty/pylorectomy shield of the present invention. The pyloroplasty/pylorectomy shield has numerous advantages including reduced trauma, decreased misalignment resulting in improved stapling and improved positioning of the pyloroplasty/pylorectomy.

Inventors

  • 👤 Joseph J. Pietrafitta
  • 👤 Ronald D. Adams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 00:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1155; A61B90/00; A61B90/08; A61B2090/0801; A61B2090/08021; A61M; A61M29/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 105 words
A method of performing a pyloroplasty/pylorectomy, comprising: inserting a circular stapler having a pyloroplasty/pylorectomy shield into the pylorus of a mammal; and, actuating the stapler so that a section of the pylorus is removed and adjoining tissue is stapled, wherein the pyloroplasty/pylorectomy shield comprises: a base member having a proximal end and a distal end; anvil means mounted to the proximal end of said member; attachment means mounted to said proximal end of said member for engagement with a circular stapler; a pyloroplasty/pylorectomy shield member extending axially from the proximal end of said member; and, dilation means extending from the distal end of said member.
Claim 2
Independent Claim 105 words
A method of performing a pyloroplasty/pylorectomy, comprising: inserting a circular stapler having a pyloroplasty/pylorectomy shield into the pylorus of a mammal; and, actuating the stapler so that a section of the pylorus is removed and adjoining tissue is stapled, wherein the pyloroplasty/pylorectomy shield comprises: a base member having a proximal end and a distal end; anvil means mounted to the proximal end of said member; attachment means mounted to said proximal end of said member for engagement with a circular stapler; a pyloroplasty/pylorectomy shield member extending axially from the proximal end of said member; and, dilation means extending from the distal end of said member.

References Cited (Backward Citations)

US4328805A Cited
DE3300768A1 Cited
US4700703A Cited
US4817847A Cited
US5197648A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-10-17 1998-04-18 1998-10-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-10-17 2002-04-18 2002-10-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-10-17 2006-04-18 2006-10-18 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag