US 6,503,259 B2Granted

Expandable anastomotic device

AssigneeEthicon, Inc.

InventorsShawn T. Huxel, John McAllen, III, David W. Overaker

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Abstract

A surgical fastening system includes a fastener having a plurality of individual fastener pairs each having a piercing element with a pin that pierces the tissue to be repaired and a receiver portion that interlocks with the pin of a corresponding piercing element. A fastener dispenser holds the piercing elements and receiver elements in relative juxtaposition and in a predetermined geometric configuration, such as a circle. After the tissues to be joined are positioned between the piercing and receiving elements held in the dispenser, the dispenser is adjusted to draw the elements together capturing the tissue therebetween. The dispenser then pushes the piercing elements through the tissue and into the receiving elements causing the elements to interlock. Because the anastomosed junction is formed by a plurality of independent pairs, the junction retains flexibility. When used to anastomose a tubular organ, the fastener allows radial expansion of the organ permitting peristalsis.

Claims21

Dependent claims

A surgical fastener, comprising:

a plurality of first portions having a first tissue constraining surface;
a plurality of second portions having a second tissue constraining surface, said first portions positionable proximate a first side of a bodily tissue, said second portions positionable proximate a second side of the bodily tissue adjacent corresponding ones of said first portions, said first portions extendable through the bodily tissue to contact said second portions and interlock therewith with said first tissue constraining surface positioned proximate the first side of the bodily tissue and resisting withdrawal of said first portions through the bodily tissue and said second tissue constraining surface positioned proximate the second side of the bodily tissue resisting withdrawal of said second portions through the bodily tissue, said first portions having a pin extending therefrom proximate said first tissue constraining surface and said second portions having a pin receiver opening therein proximate said second tissue constraining surface, said pin being lockingly received within said pin receiver opening, said first tissue constraining surface including a substantially flat base portion proximate said pin and first and second base extension arms extending from said base portion and having a width substantially less than a width of said base portion, said first and second base extension arms being spaced apart and extending generally tangentially from said base portion in opposite directions, said second tissue constraining surface including a central portion proximate said pin receiver opening and first and second central portion extension arms extending from said central portion substantially perpendicularly relative to an axis of said pin receiver opening, said first and second base extension arms and said first and second central portion extension arms being approximately coextensive and homologous.

Dependencies are inferred from the claim text.

Facts

Application: 09/748,311Filed 27 Dec 2000
Published: US 2002/0082625 A127 Jun 2002
Granted: 7 Jan 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61B 17/115
For performing anastomosis; Buttons for anastomosis: staplers for performing anastomosis, e.g. in a single operation
A61B 17/0643
Surgical staples, i.e. penetrating the tissue: with separate closing member, e.g. for interlocking with staple
A61B 17/32053
Excision instruments: punch like cutting instruments, e.g. using a cylindrical or oval knife
A61B 2017/00725
Aspects not otherwise provided for: calibration or performance testing