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US 2012/0232528 A1Published application
Delivery system with incremental markers
AssigneeAbbott Cardiovascular Systems Inc.
InventorsErik D. Eli, Laura M. Kalvass
Life of this patent
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Abstract
The present invention is a catheter or catheter delivery system that incorporates a series of radiopaque markers at discrete, intervals corresponding to units of measurement, such as millimeters, such that structures and blockages within a body lumen can be measured in vitro using the catheter under fluoroscopy. The apparatus and method avoids estimation errors by directly measuring the designated lesion, allowing for improved selection of stents and balloons.
Claims22
A catheter, comprising:
- an elongate tubular member having a first lumen for a guidewire, and a second lumen for inflating a balloon member;
- a balloon member disposed on a distal portion of the elongate tubular member, the balloon member having a working body section and a proximal and a distal taper section;
- and
- a plurality of visual radiopaque markers spaced axially along the catheter, where a spacing of the markers correspond with a discrete unit of measurement.
1 more element
A method for measuring an object in a body lumen comprising:
- providing a catheter having a plurality of visual markers spaced at discrete and uniform intervals, the intervals corresponding to a unit of measure;
- maneuvering the catheter into the body lumen adjacent the object to be measured;
- and
- visually comparing a length of the object to the number of markers on the catheter to determine how many units of measure the object extends for.
1 more element
A catheter, comprising:
- an elongate tubular member having a first lumen for a guidewire, and a second lumen for inflating a balloon member;
- a balloon member disposed on a distal portion of the elongate tubular member, the balloon member having a working body section and a proximal and a distal taper section;
- and
- a radiopaque ribbon wound around the elongate tubular member so as to have a spacing between successive windings corresponding to a discrete unit of measurement.
1 more element
Dependencies are inferred from the claim text.