Laparoscopic surgical ligation clip applier

A ligation clip applier, comprising:

• a handle assembly including:
• a barrel housing defining a cavity therein;
• a fixed handle extending from the barrel housing;
• a trigger pivotably connected to the fixed handle, the trigger including a proximal end extending into the cavity of the barrel housing;
• an elongate neck portion supported on and extending from the barrel housing, the elongate neck portion includes a tubular shaft defining a lumen therethrough, wherein the lumen of the tubular shaft of the elongate neck portion extends into the cavity of the barrel housing;
• and an advancing mechanism removably and slidably supported within the barrel housing and the lumen of the tubular shaft of the elongate neck portion, wherein the advancing mechanism is actuatable by the trigger, the advancing mechanism including:
• an advancing shaft having a proximal end and a distal end;
• an actuator supported at the distal end of the advancing shaft;
• and a biasing member urging the advancing shaft in a proximal direction;
• and a clip module removably and selectively connected to a distal end of the tubular shaft of the elongate neck portion, the clip module including:
• a housing defining a proximal end, a distal end and a lumen therethrough, the proximal end of the clip module housing being configured for selective connection to the distal end of the tubular shaft of the elongate neck portion, the clip module housing including an annular flange extending radially into the lumen thereof, and a jaw blade slidably supported within the lumen of the clip module housing, the jaw blade including:
• a pair of jaws disposed within the distal end of the clip module housing, the pair of jaws being biased to an open condition, wherein each jaw includes a respective cam tooth projecting therefrom, wherein the cam teeth are in operative registration with, and proximal of, the annular flange of the clip module housing;
• and a stem extending proximally from the pair of jaws, wherein a proximal end of the stem is engagable by the distal end of the actuator of the advancing mechanism.