Abstract:
A coextrusion employing a tie layer between two layers of different polymer materials. The tie layer is formed in the extrusion melt of a composition comprising one of the two polymer materials and a coupling agent that includes functional groups that are reactive at least with functional groups on the second polymer. The coupling agent may be incorporated into the tie layer material in amounts above 5% by weight.
Abstract:
A balloon catheter may include an elongate shaft and a shaft lumen extending through the elongate shaft to a distal end thereof A balloon may be disposed about a distal region of the elongate shaft while a coil may be disposed within the balloon. A polymer coating may be disposed on an interior of the balloon. The coil may be formed of a coil wire that is polymer coated prior to winding the coil. The catheter may be either OTW or SOE.
Abstract:
A balloon catheter, and method of making the same, which includes an elongated shaft, and an expandable member affixed to the distal portion of the elongated shaft such that a section of the elongated shaft extends through at least a portion of the expandable member. The elongated shaft includes a radiopaque portion that includes a radiopaque material disposed in a non-metallic coating material. In some embodiments, the radiopaque portion is positioned adjacent the expandable member such that the position of at least a portion of the expandable member (or a stent disposed thereon) can be identified or determined within the vasculature in which it is deployed using an appropriate imaging technique, such as fluoroscopy. Additionally, in some embodiments, the radiopaque portion can define one or more raised areas on the elongated shaft adjacent the expandable member. In such embodiments, the raised area or areas in the radiopaque portion can function as mounting bodies for mounting a stent.
Abstract:
A medical device in which a melt processed part has different crystallized properties at different locations. The part is formed of a polymer composition by inclusion a of polymer crystallization modifier in the composition making up at least a portion of such part, the amount of the polymer crystallization modifier is varied at different locations on the part in accordance with the desired difference in crystallization behavior.
Abstract:
A catheter tip assembly comprises a marker band and a catheter tip. The catheter tip has an inner lumen therethrough and an outer portion and an inner portion with the marker band disposed therebetween.
Abstract:
A coextrusion employing a tie layer between two layers of different polymer materials. The tie layer is formed in the extrusion melt of a composition comprising one of the two polymer materials and a coupling agent that includes functional groups that are reactive at least with functional groups on the second polymer. The coupling agent may be incorporated into the tie layer material in amounts above 5% by weight.
Abstract:
In general, the invention relates to systems for delivering medical devices, as well as related methods. In one aspect of the invention, an implantable medical endoprosthesis delivery system (10) includes an outer member (14) and a coil (50,52; 150; 250; 300; 350; 400; 450; 500) including a plurality of spaced-apart windings (56, 58; 156, 158) . At least some of the spaced-apart windings can surround a guidewire lumen of the system, and the system can be configured so that an implantable medical endoprosthesis (32) can be disposed between the outer member and the plurality of windings.