Medical wire having implanted device and method for using the same
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United States of America Patent
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Dec 8, 1998
Grant Date -
N/A
app pub date -
Sep 8, 1997
filing date -
Sep 20, 1996
priority date (Note) -
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Abstract
A medical wire includes a conductive guide wire and an implanted device, which are connected to each other through a joint member. The joint member is heated by applying a high-frequency current through the guide wire, whereby the joint member is melted and severed so as to detach the implanted device from the guide wire. The joint member is composed of a rod of a swelling resin, the outer diameter of which increases by at least 10% when brought into contact with water. The medical wire may be inserted into a patient's body through a catheter arranged in the patient's body, during which an impedance reducing phenomenon that occurs between the guide wire and a counter electrode provided on the patient's body is detected, thereby confirming that the implanted device has been deposited properly in the patient's body.
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