Rapid exchange delivery system for stenting a body lumen
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United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
Mar 27, 1998
filing date -
Mar 27, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A rapid exchange catheter system provides a delivery vehicle to carry a stent through a patient's vasculature and deploy the stent after a protective sheath covering the stent has been withdrawn. In order to facilitate the rapid exchange of catheters and specifically the backloading of a catheter onto the proximal end of a guide wire, the catheter includes telescoping sleeves within the guide wire lumen that translate relative to each other as the sheath is retracted to expose the stent. The telescoping sleeves align the catheter and the sheath when the catheter is backloaded onto the distal extremity of the guide wire by aligning the guide wire notch of the catheter with an opening in the sheath thus providing a continuous guide wire passageway.
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