Luminal anastomotic device and method
First Claim
1. A surgical anastomotic fastener array comprising a plurality of fasteners each having at least one tissue piercing element, wherein the fasteners are aligned in an annular array of a first diameter prior to anastomosis and are configured to move in a radial direction to form an annular array of a second diameter different from the first diameter, and a mechanism for accommodating radial movement of the annular array of fasteners.
0 Assignments
0 Petitions
Accused Products
Abstract
An end to end anastomotic stapling device connects two lumen sections avoiding constriction at the anastomotic ring. An intraluminal end to end anastomotic stapler includes an expanding head and anvil designed to fire an anastomotic ring having an inner diameter at least equal to the nominal inner diameter of the remaining lumen sections. An extraluminal end to end lumen stapler is described attaching the lumen sections with an exterior flange type connection having anastomotic rings with a diameter larger than the inner diameter of the lumen sections whereby the anastomotic site has a diameter at least as great as the adjacent lumen sections.
-
Citations
15 Claims
- 1. A surgical anastomotic fastener array comprising a plurality of fasteners each having at least one tissue piercing element, wherein the fasteners are aligned in an annular array of a first diameter prior to anastomosis and are configured to move in a radial direction to form an annular array of a second diameter different from the first diameter, and a mechanism for accommodating radial movement of the annular array of fasteners.
-
5. An anastomotic stapler for end to end anastomosis forming an anastomotic ring utilizing staples formed in a pair of offset annular arrays of staples to couple the end of a first lumen section to the end of a second lumen section comprising:
-
a head portion including a stapling mechanism wherein the head portion comprises a plurality of wedge-shaped arc segments that align to form an annular head, each segment having at least one staple therein and wherein each arc segment has a separate, independent firing mechanism for firing the staples of that segment; and
an anvil portion aligned with the segments of the head portion. - View Dependent Claims (6, 7, 8)
-
-
9. A method of anastomizing lumen sections in a human comprising the steps of:
-
Inserting an anastomotic surgical stapler for end to end anastomosis into a first lumen section to form an anastomotic ring coupling the end of the first lumen section to the end of a second lumen section, the stapler having an elongated body, a head portion at a distal end of the elongated body, the head portion including a stapling mechanism having an annular array of staples that forms the anastomotic ring coupling the end of a first lumen section to the end of a second lumen section, and an anvil portion coupled to the head portion, the annular array of staples being fired against the anvil portion;
Operating the stapler through controls at one end of the elongated body opposite from the head portion;
Maximizing, at least at the time of firing the staples, the inner diameter of the annular array of staples that form the anastomotic ring coupling the end of a first lumen section to the end of a second lumen section, wherein the inner diameter of the annular array of staples, at least at the time of firing the staples, is maximized relative to the outer diameter of the surgical stapler during insertion and withdrawal of the surgical stapler. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
Specification