Device and method for anastomosis

摘要

Device and method for anastomosis may include a circular stapler with central anvil and multiple circumferentially disposed stapling limbs. A tubular graft may be sleeved on the anvil. The anvil with sleeved graft may be inserted into an end of a dissected aorta to form an overlap. Control actuation may cause the limbs to all substantially simultaneously close and then fire staples respectively into the overlap. The staples may form two generally parallel rows around the overlap with staples of each row being staggered relative to staples of the other row, thereby making a leak-free connection between the tubular graft and the end of the aorta. Control actuation may cause the limbs to open so the anvil may be removed from the end of the aorta, leaving the tubular graft in a leak-free connection with the aorta's end. Exemplary embodiments may allow for generally faster anastomosis than prior art.

主权项

1. An apparatus for anastomosis, comprising:
an anvil having a length from a front end and defining a longitudinal axis; stapling limbs disposed circumferentially about and along the length of the anvil, each stapling limb having stapling functionality at its limb end corresponding to the front end of the anvil and defining one of at least two complementary stapling patterns in an alternating configuration around the anvil; each limb end being disposed for movement from an open position at a distance from the front end of the anvil to a closed position closer to the front end of the anvil, such that the complementary stapling patterns of adjoining stapling limbs are disposed in a mated configuration when the stapling limbs are in the closed position, wherein the complementary stapling patterns comprise alternating T-shaped and inverted T-shaped patterns, and wherein the mated configuration is defined such that a stapling limb defining a T-shaped pattern is engaged with a stapling limb defining an inverted T-shaped pattern; a cam disposed for causing movement of each limb end from its open position to its closed position; a rotary control rotatable about the longitudinal axis and capable of being selectively activated to cause the cam to cause the movement of each limb end to its closed position; the anvil being capable of receiving a graft for connection to a vessel, and the anvil with the graft being insertable at least partially into a portion of the vessel to create an overlap positioned on the anvil; and the rotary control capable of being activated to cause the cam to cause each limb in its closed position to fire at least a staple perpendicular to the longitudinal axis into the overlap on the anvil to make a connection between the vessel and the graft at the overlap, such that stapling functionality of adjoining stapling limbs is configured to fire the staples in a staggered configuration.