Apparatus for removing an elongated structure implanted in biological tissue
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United States of America Patent
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-
Jul 24, 1990
Issued Date -
N/A
app pub date -
Jun 9, 1989
filing date -
May 3, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Heart lead removal apparatus and method are disclosed for removing a heart lead from the wall of a heart through a blood vessel leading to the heart. The apparatus comprises a flexible stylet wire with an expandable wire coil attached to the distal end for securing the distal end of the stylet wire to the heat lead. A catch wire extends from the proximal end of the wire coil. The free end of the catch wire has a segment folded back on itself for engaging the coiled structure of the lead and expanding the wire coil when the stylet wire and wire coil are rotated in the passageway of the lead. The stylet wire is inserted in the longitudinal passageway of the coiled structure to the distal end of the heart lead. When inserted in the passageway, the stylet wire and wire coil are rotated in a direction to engage the catch wire with the coiled structure. The wire coil then expands engages the heart lead coiled structure, thereby securing the stylet wire to the heat lead. The heard lead is now secured for subsequent removal.
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