Patent ID: 9731099
Date: 2017-08-15
CPC Classifications: A61B,A61M

Claim:
1. An apparatus for treating a body lumen, comprising: an elongate tubular member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal and distal ends; an expandable balloon comprising a balloon wall, a proximal end secured to the distal end of the elongate tubular member, a distal end comprising an outlet, and an interior defined by the balloon wall communicating with the first lumen and the balloon outlet; an elongate member slidably disposed within the first lumen, the elongate member comprising a proximal end adjacent the proximal end of the elongate tubular member, and a distal end at least partially extending from the balloon outlet; and a sealing member on the distal end of the elongate member, the sealing member comprising a first bump and a second bump spaced from and distal to the first bump, the first bump and second bump having a cross-sectional area greater than a cross-sectional area of the balloon outlet, wherein the elongate member is movable between a first position wherein the balloon outlet is spaced from and between the first bump and the second bump of the sealing member such that fluid introduced through the first lumen passes through the balloon interior and out the balloon outlet, and a second position wherein the second bump is in contact with the balloon outlet to substantially seal the balloon outlet such that fluid introduced through the first lumen enters the balloon interior to expand the balloon.