Tool for extracting broken endodontic instrument

A tool for extracting broken endodontic instrument, comprising:

• a tubular, cylindrical body having opposing ends;
• a grip extending from one of the ends of the body;
• a conical nose extending from the grip;
• a disposable gripper tube releasably attached to the conical nose, the gripper tube having an open gripping end dimensioned and configured for slidable insertion over an end of the broken endodontic instrument, the gripper tube having a plurality of resilient gripping prongs circumferentially disposed inside the open gripping end, the gripping prongs being compressible to permit passage of the broken endodontic instrument into the open gripping end of the gripper tube and resiliently biased to expand and bear against the broken endodontic instrument;
• a battery power supply housed within the body;
• a magazine of solder pellets housed within the grip;
• a heating element for melting the solder pellets one at a time, the heating element being disposed in the conical nose;
• a cap housing an electrical switch, the cap closing the end of the body opposite the grip, the electrical switch being connected to the battery power supply;
• a nozzle extending between the heating element and the gripper tube;
• and
• selectively alignable apertures and bores defined in the magazine and the heating element so that a user may selectively dispense a pellet of solder from the magazine into the heating element and turn the electrical switch on to melt the pellet of solder in the heating element, the melted solder passing through the nozzle to the gripper prongs in the gripper tube to form a solder joint between the gripper tube and the broken endodontic instrument, thereby gripping the broken endodontic instrument for extraction from a patient's mouth.

A tool for extracting broken endodontic instrument, comprising:

• a tubular, cylindrical body having opposing ends;
• a grip extending from one of the ends of the body;
• a conical nose extending from the grip;
• and
• a disposable gripper tube releasably attached to the conical nose, the gripper tube having an open gripping end dimensioned and configured for slidable insertion over an end of the broken endodontic instrument, the gripper tube having a plurality of resilient gripping prongs circumferentially disposed inside the open gripping end, the gripping prongs being compressible to permit passage of the broken endodontic instrument into the open gripping end of the gripper tube and resiliently biased to expand and hook under a spiral cutting edge of the broken endodontic instrument;
• a battery power supply housed within the body;
• a magazine of solder pellets housed within the grip;
• a heating element for melting the solder pellets one at a time, the heating element being disposed in the conical nose;
• a cap housing an electrical switch, the cap closing the end of the body opposite the grip, the electrical switch being connected to the battery power supply;
• a nozzle extending between the heating element and the gripper tube;
• and
• selectively alignable apertures and bores defined in the magazine and the heating element so that a user may selectively dispense a pellet of solder from the magazine into the heating element and turn the electrical switch on to melt the pellet of solder in the heating element, the melted solder passing through the nozzle to the gripper prongs in the gripper tube to form a solder joint between the gripper tube and the broken endodontic instrument, further securing attachment of the broken endodontic instrument to the gripper tube for extraction of the broken endodontic instrument from a patient's mouth.