A connector assembly for an anatomical manometry system, the anatomical manometry system comprising a catheter being generally elongate in shape, the catheter having a distal end and a proximal end, the distal end being configured for insertion into a patient lumen for measuring a pressure, the proximal end being opposite to the distal end, the catheter further including a plurality of catheter lumens permitting passage of a pressure transmission medium, the catheter further comprising a plurality of balloons on the distal end, each balloon being fluidly coupled to one of the plurality of catheter lumens so as to receive the pressure transmission medium, each balloon being configured to be inflatable and/or deflatable, the connector assembly comprising: a connector interface configured to receive the proximal end of the catheter therethrough, the connector interface having an alignment element to permit coaxial alignment between the catheter and the connector interface a manifold having a plurality of channels, each channel being aligned with a respective catheter lumen when the catheter is connected to the connector interface permitting passage of the pressure transmission medium toward the catheter lumen, characterised in that: the connector interface being rotatable relative to the proximal end of the catheter to lock the catheter to the manifold; and a charging mechanism coupled to the catheter, the charging mechanism comprising a plurality of bellows commonly housed on a bellow housing, each bellow being fluidly coupled to plurality of channels of the manifold, the bellows being commonly actuable when the manifold is connected with the connector interface, the rotation of the connector interface relative to the manifold permitting an axial displacement of the manifold relative to the bellow housing so as to simultaneously actuate each bellow positioned on the bellow housing, each bellow configured to displace a fluid when actuated by the manifold, the bellows configured to discharge the displaced fluid to charge a corresponding balloon, whereby displacement of the fluid is caused by movement of the bellow when actuated by the manifold, the commonly actuated bellows further permitting simultaneous charging each balloon of the plurality of balloons. a connector interface configured to receive the proximal end of the catheter therethrough, the connector interface having an alignment element to permit coaxial alignment between the catheter and the connector interface a manifold having a plurality of channels, each channel being aligned with a respective catheter lumen when the catheter is connected to the connector interface permitting passage of the pressure transmission medium toward the catheter lumen, characterised in that: the connector interface being rotatable relative to the proximal end of the catheter to lock the catheter to the manifold; and a charging mechanism coupled to the catheter, the charging mechanism comprising a plurality of bellows commonly housed on a bellow housing, each bellow being fluidly coupled to plurality of channels of the manifold, the bellows being commonly actuable when the manifold is connected with the connector interface, the connector interface being rotatable relative to the proximal end of the catheter to lock the catheter to the manifold; and a charging mechanism coupled to the catheter, the charging mechanism comprising a plurality of bellows commonly housed on a bellow housing, each bellow being fluidly coupled to plurality of channels of the manifold, the bellows being commonly actuable when the manifold is connected with the connector interface, the rotation of the connector interface relative to the manifold permitting an axial displacement of the manifold relative to the bellow housing so as to simultaneously actuate each bellow positioned on the bellow housing, each bellow configured to displace a fluid when actuated by the manifold, the bellows configured to discharge the displaced fluid to charge a corresponding balloon, whereby displacement of the fluid is caused by movement of the bellow when actuated by the manifold, the commonly actuated bellows further permitting simultaneous charging each balloon of the plurality of balloons.