Cryo balloon

A cryo therapy device, comprising:

• an elongate shaft having a proximal end and a distal end;
• a manifold disposed at the proximal end;
• a cooling member disposed at the distal end;
• wherein the cooling member includes an inner member and an outer member;
• a pressure gauge coupled to the manifold by a connector;
• an inflation tube disposed within the shaft;
• a drain tube disposed within the shaft;
• and
• a pressure release tube in fluid communication with the inner member.

A method of performing cryoplasty, comprising the steps of:

• providing a cryo therapy device including an elongate shaft having a proximal end and a distal end, a manifold disposed at the proximal end, a cooling member disposed at the distal end, wherein the cooling member includes an outer member and an inner member, and a measuring device coupled to the inner member and coupled to the manifold by a connector such that pressure within the inner member may be quantified by the manifold;
• advancing the cryo therapy device to an area of interest;
• inflating the inner member of the cooling member with a coolant to a pressure;
• quantifying the pressure with the pressure gauge;
• and
• cooling the area of interest with the cooling member.