| 摘要 |
According to the present invention there is provided an inflation/deflation system (10) for a dilatation balloon comprising a receptacle (40), a pressure member (44), a sensing system (80) and a data processing and display unit. The receptacle is adapted to contain an inflation fluid to be introduced into the balloon during its inflation. The receptacle also has an inlet/outlet port (49) adapted for connection to the dilatation balloon; The pressure member (44) is adapted to be axially displaced within the receptacle (40) to cause the fluid to exit the receptacle via the outlet port (49). The sensing system comprises a first sensor and a second sensor. The first sensor (82) is associated with the pressure member to sense its axial displacement. The second sensor (84) is associated with the interior of the receptacle (40) to sense in a non-contact manner the pressure P of the inflation fluid within the receptacle (40), and to provide a corresponding data signal. The data processing and display unit is adapted to process the signal and display at least a scheme of pressure P within the receptacle vs. the volume V of the inflation fluid exiting the receptacle through the inlet/outlet port. The volume is calculated by the axial displacement of the pressure member. The scheme reflects the corresponding P-V conditions within the balloon when the system is in use. |
