Patent ID: 8545382
Filing Date: 2013-10-01
Classification: A61M

Abstract:
1. A balloon pumping method of changing a balloon between a deflated condition and an inflated condition in a blood vessel at a predetermined timing, comprising: a first step of applying a pressure into the balloon so as to inflate the balloon from the deflated condition into the inflated condition, and of setting a pressure in the balloon at a first pressure value which is higher than a minimum pressure value capable of preventing the balloon in the inflated condition from being deflated, and which is lower than a maximum pressure value capable of maintaining the inflated condition of the balloon; a second step, after the first step, of detecting that the balloon has been changed into the inflated condition; and a third step, after the second step, of releasing the pressure in the balloon, and setting the pressure in the balloon at a second pressure value which is substantially equal to or higher than the minimum pressure value, and which is lower than the first pressure value.