| US 7,546,940 B2 | ||
| Pivoting anvil assembly for surgical stapling device | ||
| Keith L. Milliman, Bethel, Conn. (US); Bruce K. Jankowski, Meriden, Conn. (US); Douglas J. Cuny, Bethel, Conn. (US); Kevin Sniffin, Danbury, Conn. (US); Anthony Dato, East Haven, Conn. (US); and Richard D. Gresham, Guilford, Conn. (US) | ||
| Assigned to Tyco Healthcare Group LP, North Haven, Conn. (US) | ||
| Filed on Oct. 29, 2007, as Appl. No. 11/978,345. | ||
| Application 11/978345 is a division of application No. 10/528975, filed on Mar. 23, 2005. | ||
| Prior Publication US 2008/0054045 A1, Mar. 06, 2008 | ||
| Int. Cl. A61B 17/068 (2006.01) | ||
| U.S. Cl. 227—180.1 [227/19; 227/175.1; 227/177.1; 227/181.1] | 9 Claims |
| 1. An anvil assembly comprising:
an anvil head having a post, an anvil including a plurality of staple forming pockets and a cutting ring slidably positioned
about the post from a first position to a second position along a path of travel;
an anvil center rod extending from the post of the anvil head; and
a retainer clip positioned on the post of the anvil head, the retainer clip having at least one resilient arm which is movable
from a biased condition to an unbiased condition, wherein in the unbiased condition the at least one resilient arm extends
outwardly of the post;
wherein in the first position, the cutting ring is at least partially engaged with the at least one resilient arm to urge
the at least one resilient arm out of the path of travel of the cutting ring and in the second position, the at least one
resilient arm of the retainer projects into the path of travel of the cutting ring to prevent movement of the cutting ring
from the second position back to the first position.
|