Disclosed is a medical device that includes a phased array ultrasound transducer. The transducer includes a number of transducer elements that are electrically coupled to corresponding electrical conductors. In one embodiment, the conductors are included in a flex circuit and engage corresponding transducer elements though a conductive surface formed on outwardly extending ribs of a frame that holds the ultrasound array. In one embodiment, the phased array is forward facing in the medical device and has an element pitch of 0.75 lambda or less and more preferably 0.6 lambda or less. In one embodiment, the transducer is rotatable over an angle of +/- 90 degrees to provide a 360 degree view of tissue surrounding the distal end of the device.本申請公開了具有相位陣列超音波換能器之醫療裝置。所述換能器包括電耦合到相應電導體的多個換能器元件。於一實施例中，所述導體被包括在柔性電路中並且通過導電表面接合相應的換能器元件，所述導電表面形成在持有超音波陣列的框架的向外延伸的肋部上。於一實施例中，醫療裝置中的相位陣列為前向，並且元件節距等於或小於0.75λ，更優選為等於或小於0.6λ。於一實施例中，換能器可在+/-90度的角度上旋轉，從而可提供裝置遠端周圍組織的360度視角。
