Systems and methods for percutaneous removal of objects from an internal body space

A system for transforming a linear pulling force at one end of a catheter device to a radial compressive force at an opposite end of said catheter device that is substantially perpendicular to said linear pulling force comprising:

• an outer sheath having a lumen;
• and,
• an inner sheath that is adapted for insertion into the outer sheath,
• wherein a terminal extremity of the inner sheath comprises a wire woven distal end formed from wires and having a compressed state and an expanded state, the wire woven distal end adopting the compressed state when the wire woven distal end is housed within the lumen of the outer sheath, and adopting the expanded state when the wire woven distal end of the inner sheath is advanced beyond a distal end of the outer sheath by moving the wire woven distal end of the inner sheath forward relative to the distal end of the outer sheath, the wire woven distal end of the inner sheath having a mouth, a substantially cylindrical main body section, a tapered section, and an attachment portion,
• wherein the wire woven distal end includes 11-21 picks per centimeter, and the wires of the wire woven distal end have a diameter of about 100 to about 300 μm, wherein the inner sheath comprises a lumen extending from a proximal end of the inner sheath to the wire woven distal end, the lumen housing a suture line that is configured to transition the mouth of the wire woven distal end between closed and opened states or a control line that is configured to position the mouth, or that includes a snare or manipulation tool;
• and,
• wherein when said inner sheath in the expanded state is at least partially withdrawn into the outer sheath, said linear force is imposed on said tapered section, and then said main body section produces a radial compressive force within the wire woven distal end.