Catheter exchange method and apparatus

Details Catheter exchange method and apparatus Catheter exchange method and apparatus

1994-02-01

1995-05-23

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

A61B 500

Patent

active

054176697

ABSTRACT:
A first catheter surrounds a guidewire, with the first catheter and guidewire each having a distal portion emplaced in the cardiovascular system of a patient. By this invention, the first catheter may be removed without displacing the guidewire. To accomplish this, one may advance an exchange catheter into the patient to a desired position. The exchange catheter surrounds the guidewire and, in turn, is surrounded by the first catheter. One causes a proximal end portion of the guidewire to project outwardly through a longitudinal slit of the exchange catheter, so that the proximal end of the guidewire may be grasped. By this means the guidewire may be retained in the desired position as the exchange catheter is advanced into its position within the first catheter and surrounding the guidewire. One then withdraws the first catheter from the patient, while causing the exchange catheter to be held relatively stationary. Thus the guidewire within the exchange catheter is also retained in relatively stationary position without the need for retention of the guidewire by manual grasping.

REFERENCES:
patent: 4747833 (1988-05-01), Kousai et al.
patent: 4771777 (1988-09-01), Horzewski et al.
patent: 4947864 (1990-08-01), Shockey et al.
patent: 4983168 (1991-01-01), Mooreheal
patent: 5135535 (1992-08-01), Kramer
patent: 5154725 (1992-10-01), Leopold
patent: 5171222 (1992-12-01), Euteneuer et al.
patent: 5195978 (1993-03-01), Schiffer
patent: 5234407 (1993-08-01), Teirstein et al.
A document entitled Instructions For Use Marathon Relay (.TM.) Guiding Catheter Flushing Device (1 Page).
A document entitled Marathon Relay (.TM.) Guiding Catheters (3 pages).

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