Abstract: An apparatus for removing tissue and/or other material from a patient, particularly a breast of a patient, is provided. The apparatus generally includes a handpiece and a tissue removal mechanism connected thereto. The tissue removal mechanism includes a cannula having an open distal tip and an outer diameter of less than about 5 mm, or less than about 2 mm. The mechanism further includes a rotatable element having a distal portion with helical threading. The distal portion of the rotatable element extends beyond the open distal tip of the cannula in order to allow tissue to prolapse between turns of the helical threading. The apparatus is designed to draw soft tissue into the cannula upon rotation of the rotatable element and without the need for supplemental sources of aspiration.

Abstract: An apparatus for removing tissue and/or other material from a patient is provided. The apparatus generally includes a handpiece and a tissue removal mechanism connected thereto. The tissue removal mechanism includes a cannula having an open distal tip and an outer diameter of less than about 5 mm or less than about 2 mm. The mechanism further includes a rotatable element having a distal portion with helical threading. The distal portion of the rotatable element extends beyond the open distal tip of the cannula in order to allow tissue to prolapse between turns of the helical threading. The apparatus is designed to draw soft tissue into the cannula upon rotation of the rotatable element without the need for supplemental sources of aspiration.

Abstract: An apparatus and method for removing intervertebral disc material, particularly nucleus pulposus, from a patient is provided. The apparatus generally includes a handpiece and a tissue removal mechanism operatively coupled thereto. The tissue removal mechanism includes a cannula adapted to be inserted into an intervertebral disc and having an open distal tip and an outer diameter of less than about 5 mm, or less than about 2 mm. The mechanism further includes a rotatable element having a distal portion with projections or threading, for example, having a substantially helical configuration. The distal portion of the rotatable element may extend beyond the open distal tip of the cannula. The apparatus is designed to urge or draw nucleus material into the cannula upon rotation of the rotatable element and preferably without the need for supplemental sources of suction or aspiration.