Laceration system and device, and methods for laceration

A laceration device for use in medical procedures, comprising:

• a shaft, the shaft having a proximal portion defining a proximal end, and an opposed distal portion defining a distal end;
• a perforating tip at the distal end;
• an outwardly extending barb positioned proximal of the distal end, the barb having an inner end proximate the shaft and an outer end opposite the inner end, wherein the barb is movable between a deployed position in which the outer end is moved radially outwardly from the shaft, and a collapsed position in which the outer end is moved radially towards the shaft, the barb being biased towards the deployed position whereby the barb collapses from the deployed position to the collapsed position as the barb passes through an anatomical structure and moves back to the deployed position upon clearing the anatomical structure;
• and
• a laceration electrode proximal of and adjacent the inner end of the barb, and an electrical connector extending proximally from the laceration electrode for connection to a power source;
• wherein the barb is configured to flex to an engaged position when force is applied in a direction opposite to the collapsed position, the barb being configured to resist movement beyond the engaged position to prevent proximal movement of the laceration device when the outer end contacts a distal surface of an anatomical structure.