Guidewire replacement method

Details Guidewire replacement method Guidewire replacement method

1995-06-07

1999-11-16

Thaler, Michael H.

Surgery

Instruments

Internal pressure applicator

606 1, 604284, A61M 2500

Patent

active

059849452

ABSTRACT:
A guidewire replacement device having an elongated catheter shaft with an inner lumen extending within the catheter shaft, a proximal guidewire port spaced at least 1 cm from the distal end of the catheter which is in fluid communication with the inner lumen and a distal guidewire port in the distal end of the catheter which is also in fluid communication with the inner lumen. The proximal end of an in-place guidewire is inserted through the distal guidewire port and advanced through the inner lumen until the proximal end of the guidewire extends through the proximal guidewire port. The exchange device is advanced over the guidewire until the distal end of the exchange device is seated within the proximal guidewire port in the readily exchangeable dilatation catheter. With the distal end of the exchange device well seated within the proximal guidewire port of the dilatation catheter, the in-place guidewire can be withdrawn from the patient. A replacement guidewire is advanced through the inner lumen of the exchange device until it exits the distal guidewire port of the exchange device into the inner guidewire receiving lumen of the dilatation catheter. Once the replacement guidewire is properly placed, the exchange device can then be withdrawn from the patient.

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