The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2013
Filed:
Sep. 05, 2006
Keith L. Milliman, Bethel, CT (US);
Bruce K. Jankowski, North Attleboro, MA (US);
Douglas J. Cuny, Bethel, CT (US);
Kevin Sniffin, Danbury, CT (US);
Anthony Dato, East Haven, CT (US);
Richard D. Gresham, Guilford, CT (US);
Keith L. Milliman, Bethel, CT (US);
Bruce K. Jankowski, North Attleboro, MA (US);
Douglas J. Cuny, Bethel, CT (US);
Kevin Sniffin, Danbury, CT (US);
Anthony Dato, East Haven, CT (US);
Richard D. Gresham, Guilford, CT (US);
Tyco Healthcare Group LP, Mansfield, MA (US);
Abstract
A surgical stapling device is disclosed for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. The head portion includes an anvil assembly including a tiltable anvil which will tilt automatically after the device has been fired and unapproximated. The tiltable anvil provides a reduced anvil profile to reduce trauma during removal of the device after the anastomoses procedure has been performed. The stapling device includes an approximation mechanism including a rotatable knob, a screw having a helical channel and an anvil retainer. The helical channel includes a dwell portion for providing a tactile indication to a surgeon that the anvil retainer has been advanced to a position wherein the anvil assembly can be removed from the anvil retainer. A removable trocar for attachment to the anvil assembly is also disclosed which includes a rib positioned proximally of a mounting projection. The rib is positioned to align the mounting projection with associated engagement structure of the anvil assembly.