Patent ID: 9463106
Filing Date: 2016-10-11
CPC Classification: A61F,A61M

Claim Text:
1. A catheter comprising: a balloon having an inlet opening for receiving inflation fluid and a one-way valve disposed in the inlet opening to allow inflow of the inflation fluid into the balloon while substantially preventing backflow of the inflation fluid from the balloon, wherein the inflow of the inflation fluid causes the one-way valve to open, and ceasing the inflow of inflation fluid causes the one-way valve to close; and an elongated shaft comprising a proximal end, a distal end, and a lumen extending along an axis between the proximal and distal ends, the shaft being configured to supply the inflation fluid to the balloon through the lumen and to releasably couple the balloon to the distal end of the shaft; wherein an outer periphery of the balloon, when inflated, comprises a first side portion, a second side portion, and a central portion connecting the first side portion and the second side portion, wherein the central portion is narrower than each of the first side portion and the second side portion as measured in a direction of the axis of the shaft; and wherein the shaft couples with the balloon at the central portion.