Ultrasound guided infraclavicular brachial plexus block

The ultrasound transducer is placed in the parasagittal plane below the clavicle, just medial to the coracoid process, as shown by the rectangle in this graphic. The needle is inserted in-plane with the transducer, as shown by the red dot, in a cephalad to caudad trajectory. For further details, refer to UpToDate content on ultrasound guided infraclavicular block.