Dilatation catheter with thin guide wire

Details Dilatation catheter with thin guide wire Dilatation catheter with thin guide wire

A - Human Necessities

61

M

128/126

A61M 25/10 (2006.01) A61M 29/02 (2006.01) A61B 17/22 (2006.01)

Patent

CA 1324052

DILATATION CATHETER WITH THIN GUIDE WIRE Abstract Dilatation catheter and relatively thin guide wire for use in coronary angioplasty. The luminal opening in the catheter is only slightly greater in diameter than the guide wire, and the luminal wall in close proximity to the guide wire supports the relatively thin wire against buckling and enhances the transmission of torsional and axial forces through the wire. In the disclosed embodiment, the catheter is a balloon dilata- tion catheter, and the proximal end portions of the inner and outer tubular members which form the catheter are stiffer than the distal end portions to facilitate insertion of the guide wire and catheter into the cardiovascular system. The distal end portion of the luminal opening is lined with a lubricious material such as Teflon to facilitate insertion of the relatively thin guide wire.

555830

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