Patent ID: 8475443

Claim:
A heating-type balloon catheter device having a heating-type balloon at a top end portion of a catheter main body and a vibration imparting device connected to a base end portion of the catheter main body and configured to impart vibration to a liquid for heating in the heating-type balloon through a liquid for heating filled in the catheter main body, said vibration imparting device comprising: an elastic tube with a base end portion thereof connected to said catheter main body and with a top end portion thereof closed, said elastic tube being filled with a liquid for heating; and a vibrator device having a roller configured to rotate about a rotary shaft at a position offset to the rotary shaft, wherein said elastic tube is set in direct contact with said roller so that a predetermined direction of rotation about an axis of said roller and said rotary shaft as a whole of said roller extends from a side of the base end portion of said elastic tube in a longitudinal direction of the elastic tube to a side of the top end portion thereof in the longitudinal direction and a margin volume part which is not pressed with said roller is provided on a side of the top end portion of said elastic tube; and wherein said elastic tube is configured to assume a shut-off state and a communication state in accordance with rotation of said roller in its predetermined direction, the shut-off state being a state in which the side of the base end portion of said elastic tube and the side of the top end portion thereof are blocked by pressing said elastic tube with the roller and reducing a radial size of said elastic tube with the roller and the communication state being a state in which the side of the base end portion of said elastic tube is communicated with the side of the top end portion thereof by enlarging and recovering the radial size of said elastic tube due to elasticity by releasing the pressing of said elastic tube with the roller; wherein the liquid for heating in said elastic tube is supplied with pressure toward said margin volume part when said elastic tube is in the shut-off state while the liquid for heating supplied with pressure in said margin volume part flows backward toward the side of the base end portion of said elastic tube when said elastic tube is in the communication state, in accordance with rotation of the roller in the predetermined direction of rotation about the axis of said roller and said rotary shaft as a whole of the roller; and wherein at least one air vent valve for withdrawing air in a predetermined path is disposed on the predetermined path extending from the base end portion of said catheter main body to the top end portion of said elastic tube.