Contrafuerte de grapadora circular

Un dispositivo de refuerzo para utilizar con una grapadora circular (10) que está adaptado para crear y sellar una abertura quirúrgica en un paciente, comprendiendo el dispositivo de refuerzo: un contrafuerte (12) adaptado para montar en la grapadora circular (10) y configurado para reforzar la abertura quirúrgica creada por la grapadora después de grapar con la grapadora, en el que características de relieve (32, 34, 40, 48, 54) son construidas en el contrafuerte de modo que, después de grapar con la grapadora, las características de relieve y un agujero creado en el contrafuerte por la grapadora forman una abertura de adaptación en el contrafuerte, en el que la abertura de adaptación permite que el yunque que es más grande de diámetro que dicho agujero correspondiente a la abertura quirúrgica, sea retirado a su través sin causar una alteración permanente al contrafuerte. A buttress for use with circular surgical staplers that does not require adhesive to securely fasten the buttress to the stapler. Following cutting and stapling by the circular stapler, the buttress has an adaptive opening through its central region with a diameter smaller than the outer diameter of the stapler anvil. Because of relief features built into the buttress, the stapler anvil may be pulled through the buttress material without causing permanent alteration to the buttress. These relief features may be provided regardless of whether the buttress is made of inelastic or elastic materials. The buttress is generally circular in shape with an outer diameter sized to coincide with the outer diameter of the stapler body staple compression surface and the outer diameter of the anvil compression surface of a circular stapler with which it is used. Prior to surgical use, the buttress is attached to the stapler with disruptable portions extending from outer perimetal areas of the buttress.