Stent-implanting balloon assembly
AssigneeCordis Corporation
InventorRichard A. Hillstead
Life of this patent
Estimating the term…
Abstract
The dilatation balloon assmebly comprises a catheter having a proximal end, a distal end and a distal end portion, the distal end portion having openings in the side wall thereof, and a dilatation balloon connected to and extending from the distal end of the catheter around and about the distal end portion of the catheter to a proximal end of the balloon which is also connected to the catheter. The balloon has at least three axially extending longitudinal creases therein whereby, when the balloon is in a deflated state, the maximum lateral extent in cross-section of the balloon is less than the diameter or lateral extent of a fully inflated balloon or a partially inflated balloon.
Claims9
A dilatation balloon assembly comprising a catheter having a generally cylindrical side wall, a proximal end, a distal end and a distal end portion, the distal end portion having openings in the side wall thereof, and a single lumen dilatation balloon connected to and extending from the distal end of said catheter around and about said distal end portion of the catheter to a proximal end of said balloon which is also connected to said catheter, said dilatation balloon having at least three longitudinal creases in the outer wall thereof whereby said balloon, in a partially inflated state or deflated state, is noncircular in cross-section and, in an inflated state, is generally circular in cross-section, and whereby, when said balloon is in a deflated state with a noncircular, generally triangular or "Y" shape, the maximum lateral extent in cross-section of the dilatation balloon is less than the diameter or lateral extent of a fully inflated balloon or a partially inflated balloon.
A stent-implanting balloon assembly comprising a dilatation balloon assembly including a catheter having a generally cylindrical side wall, a proximal end, a distal end and a distal end portion, said distal end portion having openings in the side wall thereof, a single lumen dilatation balloon connected to an extending from the distal end of said catheter around and about said distal end portion of said catheter to a proximal end of said balloon which is also connected to said catheter, and a cylindrical expandable/collapsible stent received and mounted on said balloon, said balloon having at least three longitudinal creases in the outer wall thereof whereby said balloon, in a partially inflated state or deflated state and positioned within said stent, is noncircular in cross-section and, in an inflated state is generally circular in cross-section, and whereby, when the balloon is in a deflated state with a noncircular, generally triangular or "Y" shape, the maximum lateral extent in cross-section of the balloon is less than the diameter or lateral extent of a fully inflated balloon or a partially inflated balloon and less than the diameter of the expanded stent.
Dependencies are inferred from the claim text.