Catheter including a bare metal hypotube
AssigneeBoston Scientific Scientific Scimed, Inc.
InventorPaul F. Chouinard
Life of this patent
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Abstract
Catheter and methods for designing, making, and using catheters are disclosed. An example catheter is a balloon catheter. The balloon catheter may include a proximal shaft. The proximal shaft may be a bare metal hypotube having a skew value of −1.0 to −2.5. A midshaft may be attached to the proximal shaft. A distal shaft may be attached to the midshaft. A balloon may be coupled to the distal shaft. An inflation lumen may be defined that extends from the proximal shaft, through the midshaft, and into the distal shaft. The inflation lumen may be in fluid communication with the balloon.
Claims20
A balloon catheter comprising:
- a proximal shaft including a bare metal hypotube having a negative skew value;
- a midshaft attached to the proximal shaft;
- a distal shaft attached to the midshaft;
- a balloon coupled to the distal shaft;
- and
- an inflation lumen extending through the proximal shaft, the midshaft, and into the distal shaft, the inflation lumen being in fluid communication with the balloon.
A catheter, comprising:
- a catheter shaft that is free of an outer lubricious coating;
- wherein at least a portion of the catheter shaft includes a bare metal hypotube having a negative skew value.
A balloon catheter comprising:
- a proximal shaft including a bare metal hypotube having an outer surface and a plurality of valleys formed within the outer surface to reduce a frictional value of the outer surface;
- a midshaft attached to the proximal shaft;
- a distal shaft attached to the midshaft;
- a balloon coupled to the distal shaft;
- and
- an inflation lumen extending through the proximal shaft, the midshaft, and into the distal shaft, the inflation lumen being in fluid communication with the balloon.
Dependencies are inferred from the claim text.