A surgical device is provided for placement in a patient, e.g. percutaneous placement, for the application of a local anesthetic agent to a wound. The device comprises a catheter and obturator. The catheter is a flexible hollow tubular member, the distal end of which is closed and has thereon a cutting...http://www.google.com/patents/US4586921?utm_source=gb-gplus-sharePatent US4586921 - Method of applying a local anesthetic agent to a wound
