| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure gauge capable of being effectively used for inner pressure measurement of a balloon catheter and easily checking a pressure value even when measuring the inner pressure of an extracorporeal circulation circuit.SOLUTION: A pressure gauge measures the inner pressure of a balloon catheter used for medical treatment and diagnosis or the pressure of the body lumen of a living matter, and includes a tube 2 which has a coil shape and is elastically deformed. One end of the tube 2 is specified as an opening fixed-end 4 and the other end as an airtight free end 3. The pressure gauge measures pressure from the position of displacement of the tube 2 by pressure introduced from the opening fixed-end.SELECTED DRAWING: Figure 5 |
