Surgical stapling device for performing circular anastomoses
First Claim
Patent Images
1. A surgical stapling device comprising:
- a handle portion;
an elongated body portion extending distally from the handle portion;
a head portion including an anvil assembly and a shell assembly housing a plurality of staples, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions;
an approximation mechanism including an anvil retainer adapted to releasably engage the anvil assembly; and
a retractable trocar assembly including a trocar slidably supported by the anvil retainer, the trocar being movable between a retracted position located within the anvil retainer to an advanced position extending from the anvil retainer.
2 Assignments
0 Petitions
Accused Products
Abstract
This application is directed to a surgical stapling device for performing circular anastomoses. The stapling device includes a retractable trocar which is slidably supported by an anvil retainer and movable from a retracted position located within the anvil retainer to an advanced position extending from the anvil retainer. The trocar defines a sensor and is operatively connected to an indicator assembly. The indicator assembly is operatively associated with an anvil assembly such that the indicator will not move from a fire-not ready position to a fire-ready position until an anvil assembly has been mounted to the anvil retainer.
2213 Citations
20 Claims
-
1. A surgical stapling device comprising:
-
a handle portion;
an elongated body portion extending distally from the handle portion;
a head portion including an anvil assembly and a shell assembly housing a plurality of staples, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions;
an approximation mechanism including an anvil retainer adapted to releasably engage the anvil assembly; and
a retractable trocar assembly including a trocar slidably supported by the anvil retainer, the trocar being movable between a retracted position located within the anvil retainer to an advanced position extending from the anvil retainer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A surgical stapling device comprising:
-
a handle portion;
a body portion extending distally from the handle portion;
a head portion including an anvil assembly and shell assembly, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions;
an approximation mechanism including an anvil retain adapted to releasably engage the anvil assembly; and
an indicator assembly including an indicator member supported by the handle portion and being movable between a fire-ready position and a fire-not ready position, the indicator being operatively associated with the anvil assembly, such that the indicator member will not move to the fire-ready position unless an anvil assembly has been mounted on the anvil retainer. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification