Surgery – Instruments – Internal pressure applicator
Patent
1995-02-07
1995-10-17
Pellegrino, Stephen C.
Surgery
Instruments
Internal pressure applicator
604 96, A61M 2902
Patent
active
054586135
ABSTRACT:
An intraluminal catheter, particularly a dilatation catheter for PTCA procedures, which is adapted for rapid exchange during an intraluminal procedure and which also allows for the exchange of the guidewire without loss of access to the intraluminal region about the distal end of the catheter. The catheter has a guidewire lumen which extends essentially the length of the catheter. A wall of the catheter shaft which defines at least part of the guidewire lumen has a first slit from the proximal end of the catheter to an area proximal to the second guidewire port and a second slit which extends from the proximal guidewire port to a location spaced proximally from the distal end of the catheter. Also disclosed is an adapter having a slit which is continuous with the slit in the proximal extremity of the catheter shaft which facilitates separation of the guidewire and the catheter when the adapter is fixed to the proximal end of the catheter shaft. A guidewire directing element disposed in the guidewire lumen which has a flexible arm which crosses the guidewire lumen so as to guide a guidewire out the second guidewire port when the guidewire is advanced proximally through the guidewire lumen and which is flexible enough to be pushed aside when a replacement guidewire is advanced distally through the guidewire lumen.
REFERENCES:
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patent: 5154725 (1992-10-01), Leopold
patent: 5300025 (1994-04-01), Wantink
patent: 5300085 (1994-04-01), Yock
Feltovich Susan M.
Gharibadeh Ramsin
Hilario Estela H.
Thornton Troy L.
Advanced Cardiovascular Systems Inc.
Lewis William
Pellegrino Stephen C.
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