Patent ID: 7278992

Claim:
A medical instrument comprising: a) a medical catheter having a distal end; b) a rotatable member hingedly connected to the medical catheter proximate the distal end of the medical catheter and rotatable with respect to the medical catheter between a first rotational position and a second rotational position, wherein in the first rotational position the rotatable member is coaxially aligned with the distal end of the medical catheter and extends distal of the distal end of the medical catheter, and wherein in the second rotational position the rotatable member is coaxially aligned with the distal end of the medical catheter and extends proximal of the distal end of the medical catheter; c) an injection needle movable to extend from, and to retract within, the distal end of the medical catheter for at least one of the first and second rotational positions of the rotatable member; and d) at least one medical-treatment electrode supported by the rotatable member.