Tympanostomy tube delivery device with cutting dilator

An apparatus comprising:

• (a) a body;
• (b) a cannula extending distally from the body, wherein the cannula has an open distal end;
• (c) a cylindraceous member disposed within the cannula, wherein the cylindraceous member comprises:
• (i) a tubular portion defining an outer diameter, and
• (ii) a first leaf extending distally from the tubular portion, wherein the first leaf has a sharp distal tip and a longitudinally extending sharp edge, and
• (iii) a second leaf extending distally from the tubular portion,
• wherein the first leaf and the second leaf are movable between a collapsed position and an expanded position,
• wherein the first leaf and the second leaf converge in the collapsed position,
• wherein the longitudinally extending sharp edge of the first leaf is configured to extend outside the outer diameter of the tubular portion in the expanded position.

An apparatus comprising:

• (a) a body;
• (b) a cannula extending distally from the body, wherein the cannula has an open distal end;
• (c) a cylindraceous member disposed within the cannula, wherein the cylindraceous member comprises:
• (i) a tubular portion defining a longitudinal axis, wherein the tubular portion has a distal end, and
• (ii) a plurality of leaves movable between a collapsed position and an expanded position, wherein the plurality of leaves are positioned at the distal end of the tubular portion,
• wherein a first leaf of the plurality of leaves has curved surface and a radially extending surface, wherein the curved surface and the radially extending surface converge to form a longitudinally extending sharp edge, wherein the longitudinally extending sharp edge terminates in a sharp distal tip.