Balloon catheter

A balloon catheter comprising:

• a housing;
• a catheter shaft having a proximal end portion disposed in the housing and forming a liquid feeding path communicating with an inside of a balloon attached to a distal end portion of the catheter shaft;
• a supply-discharge line connection portion having an internal space communicating with the liquid feeding path, and to which a supply-discharge line that supplies and discharges liquid to and from the liquid feeding path through the internal space can be connected;
• and
• a valve capable of closing the internal space of the supply-discharge line connection portion,
• wherein a position of the supply-discharge line connection portion with respect to the housing is fixed.

A balloon catheter comprising:

• a housing;
• and
• a catheter shaft having a proximal end portion disposed in the housing and forming a liquid feeding path communicating with an inside of a balloon attached to a distal end portion of the catheter shaft,
• wherein the housing includes a narrow portion narrowed in a direction intersecting a first direction in which the proximal end portion of the catheter shaft extends, a first gripping portion connected to the narrow portion from one side in the first direction, and a second gripping portion connected to the narrow portion from the other side in the first direction.

A balloon catheter comprising:

• a housing;
• a catheter shaft having a proximal end portion disposed in the housing and forming a liquid feeding path communicating with an inside of a balloon attached to a distal end portion of the catheter shaft;
• a supply-discharge line connection portion having an internal space communicating with the liquid feeding path, and to which a supply-discharge line that supplies and discharges liquid to and from the liquid feeding path through the internal space of the supply-discharge line connection portion can be connected;
• and
• a stirring line connection portion having an internal space communicating with the liquid feeding path, and to which a stirring line that sucks and discharges liquid from and into the liquid feeding path through the internal space of the stirring line connection portion to stir liquid in the balloon can be connected,
• wherein a connection portion between the internal space of the stirring line connection portion and the liquid feeding path is located closer to the distal end portion of the catheter than a connection portion between the internal space of the supply-discharge line connection portion and the liquid feeding path.