Percutaneous medical procedures and devices for closing vessels using mechanical closures

A percutaneous medical procedure, comprising:

• inserting an endovascular instrument into a vessel;
• and
• using said instrument to install a clip having an S-shaped configuration with pointed ends for closing the vessel;
• wherein said instrument comprises an inner torque tube and an outer guide tube having a pair of slots in a distal end thereof, said inner torque tube being disposed within said outer guide tube and rotatable relative thereto;
• and
• wherein the clip is installed by placing a first portion of the clip in contact with said inner torque tube and a second portion of the clip in contact with said outer guide tube, rotating the inner torque tube relative to the outer guide tube to expand the clip until the pointed ends protrude radially outwardly from the slots of the outer guide tube and penetrate the wall of the vessel, and then allowing the clip to contract and close the vessel.

A percutaneous medical procedure, comprising:

• inserting an endovascular instrument into a vessel;
• and
• using said instrument to install a clip having an S-shaped configuration with pointed ends for closing the vessel;
• wherein said instrument comprises an inner torque tube having a groove in a distal end thereof, and an outer guide tube having a pair of slots in a distal end thereof, said inner torque tube being disposed within said outer guide tube and rotatable relative thereto;
• and
• wherein the clip is installed by placing the clip in said groove at the distal end of said inner torque tube with the pointed ends thereof fit within the slots in the distal end of the outer guide tube, rotating the inner torque tube relative to the outer guide tube to expand the clip until the pointed ends protrude outwardly from the slots in the outer guide tube and penetrate the wall of the vessel, and then allowing the clip to contract and close the vessel.