A medical device for monitoring physical, chemical, or biological characteristics of an organ, such as the urinary bladder. The medical device may include an elongate member having a proximal end and a distal end. The device may further include an end-effector assembly extending distally from the distal end of the elongate member. The end-effector assembly may also include a plurality of sensing elements for detecting abnormal organ function. Each of the plurality of sensing elements may include one or more of mechanical, visual, chemical, and biological sensors.