Patent ID: 8142467
Filing Date: 2012-03-27
Classification: A61B,A61M

Abstract:
1. A tamponade trocar, comprising: an elongate balloon, the balloon having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, the distal end of the balloon being closed and gastight, the balloon being adapted to expand from a first, low-profile, small diameter condition to a second, fixed, large diameter condition; a cannula having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, the cannula being positioned within the lumen of the balloon; wherein, with the balloon in the first, low profile, small diameter condition, the balloon is configured to contain the cannula and to have a reduced portion distal to the distal end of the cannula, and the cannula being is prevented from transitioning positions within the lumen of the balloon, and wherein with the balloon in the second, fixed, large diameter condition, the internal diameter of the balloon being larger than the outside diameter of the cannula, and the cannula is free to transition positions within the lumen of the balloon.