초록 ▼

A system for delivering an implant within a patient is described. The activation of the heater coil causes the degradation, melting or reduction of a component that brings the heater coil into or out of electrical contact with another component, or causes the individual loops of the coil to contact

A system for delivering an implant within a patient is described. The activation of the heater coil causes the degradation, melting or reduction of a component that brings the heater coil into or out of electrical contact with another component, or causes the individual loops of the coil to contact each other, thereby resulting a notable change in resistance in the circuit supplying the heater coil with electricity. A core wire terminates prior to the distal end of the device, allowing for greater flexibility.

대표청구항 ▼

1. A delivery device comprising: an elongated tubular member;an implant retention mechanism located within said tubular member and releasably securing an implant at a distal end of said tubular member;a core wire for strengthening said elongated tubular member; said core wire at least partially loca

1. A delivery device comprising: an elongated tubular member;an implant retention mechanism located within said tubular member and releasably securing an implant at a distal end of said tubular member;a core wire for strengthening said elongated tubular member; said core wire at least partially located within said tubular member; said core wire having a distal end terminating between about 2 cm and about 4 cm from said distal end of said tubular member;a support coil located between a proximal end of a heater coil and a distal end of said core wire;a non-insulated wire electrically connected to said core wire at a first and second location, and further connected to said heater coil. 2. The delivery device of claim 1, wherein said distal end of said core wire terminates at about 3 cm from said distal end of said tubular member. 3. The delivery device of claim 1, further comprising an electrical connector located at a proximal end of said device and said heater coil located within said distal end of said tubular member. 4. The delivery device of claim 3, wherein said heater coil is spaced apart from said core wire. 5. The delivery device of claim 1, further comprising an insulated wire connected to said electrical connector and said heater coil. 6. The delivery device of claim 1, wherein said non-insulated wire is electrically connected near a proximal end of said core wire and near a distal end of said core wire. 7. The delivery device of claim 1, wherein said support coil further comprises a first coil region having a first coil density and a second coil region having a second coil density, said second coil density being less than said first coil density. 8. A delivery device comprising: an elongated tubular member;an implant releasably connected to a distal end of said delivery device;a heater coil located at said distal end of said delivery device;a core wire at least partially fixed within said tubular member for providing support; said core wire having a distal end terminating between about 2 cm and 4 cm from said distal end of said delivery device; and,a support coil located between said distal end of said core wire and a proximal end of said heater coil;a bare wire connected to and in electrical communication with said core wire at both a first location and at a second location; said bare wire further connected to and in electrical communication with said heater coil. 9. The delivery device of claim 8, wherein said support coil further comprises a densely-coiled region a spread-apart coil region. 10. The delivery device of claim 9, further comprising an insulated wire in electrical communication with a heater coil at a distal end of said delivery device. 11. The delivery device of claim 10, wherein said bare wire comprises about 99.99% silver and has a diameter of about 0.002 inches. 12. The delivery device of claim 10, wherein said insulated wire is in electrical communication with a conductive band located near a proximal end of said delivery device. 13. A delivery device comprising: an implant retention mechanism located near a distal end of said delivery device for selectively releasing an implant;a core wire at least partially located within an elongated tubular member of said delivery device for providing resistance to bending; said core wire having a distal end terminating between about 2 cm and 4 cm from said distal end of said delivery device; and,a support coil connected to a distal end of said core wire and extending to said distal end of said distal end of said delivery device;an insulated wire and a bare wire arranged to selectively supply electricity to a heater coil of said implant retention mechanism;wherein said bare wire is electrically connected to said core wire at a first and second location. 14. The delivery device of claim 13, further comprising a tether fixed to said core wire and positioned through said heater coil to retain an implant. 15. The delivery device of claim 13, wherein said distal end of said core wire terminates at about 3 cm from said distal end of said delivery device. 16. A delivery device comprising: an elongated tubular member;an implant retention mechanism located within said tubular member and releasably securing an implant at a distal end of said tubular member;a core wire for strengthening said elongated tubular member; said core wire at least partially located within said tubular member; said core wire having a distal end terminating between about 2 cm and about 4 cm from said distal end of said tubular member;a non-insulated wire electrically connected to said core wire at a first and second location, and further connected to a heater coil.