Patent ID: 8075532
Filing Date: 2011-12-13
Classification: A61B,A61M,A61N

Abstract:
1. A system for use with a vacuum source for engaging a tissue, the system comprising: an engagement catheter comprising a proximal end, a distal end, first and second lumens extending between the proximal end and the distal end, an injection channel formed along a length of the engagement catheter, the injection channel being ring-shaped at its distal end and having at its distal end at least one opening for administering a substance to a targeted tissue, and a skirt operatively connected to the distal end, the skirt comprising a proximal end having a circumference substantially similar to an outer circumference of the engagement catheter, the skirt further comprising a distal end having a circumference larger than the outer circumference of the engagement catheter; a delivery catheter comprising a proximal end, a distal end, and a hollow tube extending between the proximal end and the distal end, the delivery catheter configured such that the hollow tube is capable of insertion into the second lumen of the engagement catheter; a needle located at the distal end of the delivery catheter; and a vacuum port located at the proximal end of the engagement catheter, the vacuum port being operatively connected to the first lumen of the engagement catheter and capable of operative connection to a vacuum source; wherein the first lumen of the engagement catheter includes a suction port located at or near the distal end of the engagement catheter, the suction port configured to allow the distal end of the skirt to removably engage a surface of a bodily tissue such that the skirt is capable of forming a reversible seal with the surface of the tissue when a vacuum source is operatively attached to the vacuum port.