Lubricious flow directed catheter
OwnerWendy J. Zenzon, Uriel H. Chee +2inventors
InventorsWendy J. Zenzon, Uriel H. Chee, Joseph C. Eder, Robert Hergenrother
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Abstract
This invention relates to infusion catheters that are used in cardiovascular and endovascular procedures to deliver diagnostic, therapeutic or vasoocclusive agents to a target site (the target site being accessible by a tortuous path through the vasculature). In particular, the invention relates to flow-directed catheters which have been coated on their interior or exterior surfaces with a cross-linkable lubricious polymer and to the method of making those catheters. The invention also relates to the process of using the infusion catheter.
Claims23
A catheter that can be guided by the blood flow within a vessel, said catheter comprising an elongate tubular member having proximal and distal ends, an inner lumen extending between these ends, and an outer surface;
- said tubular member comprising a flexible and strong distal segment having a burst pressure of at least about 195 psi and is made of a material which will show a force of about 10.sup.4 pounds or less when ten centimeters of the material is deflected 10.degree. from horizontal;
- and said tubular member having a polymeric, lubricious coating on at least a portion of the outer surface, which coating has been covalently bonded to the catheter in-situ with irradiation.
Dependencies are inferred from the claim text.