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US 6,575,958 B1Granted
Catheter with improved transition
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsDorrie M. Happ, Jessica Liang, Chicheng Jack Wang, Renee E. Garcia, Rommel C. Lumauig
Life of this patent
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Abstract
The invention is generally directed to an intraluminal catheter system with an improved transition between a proximal shaft portion and a more flexible distal shaft portion. The improvement provides enhanced flexibility and kink-resistance, thus, facilitating advancement through tortuous anatomy. The present catheters may be used for either or both angioplasty and stent deployment.
Claims11
An intravascular catheter, comprising:
- an elongated catheter shaft having proximal and distal ends, and a proximal and a distal shaft section, each shaft section having proximal and distal ends;
- an inflation lumen extending within at least a portion of the catheter shaft from an inflation lumen proximal end to a location spaced proximal to the distal end of the catheter shaft;
- a guidewire receiving lumen extending within at least the distal shaft section to a port in the distal end thereof;
- an inflatable member on the distal shaft section and having an interior in fluid communication with the inflation lumen;
- and
- a tubular support member positioned so as to engage an interior surface of said distal shaft section near the proximal end of the distal shaft section and an exterior surface of said proximal shaft section, wherein said support member includes a tubular reinforcing section that is shorter than said tubular support member and wherein the distal end of said proximal shaft section is received in said tubular reinforcing section.
3 more elements
Dependencies are inferred from the claim text.