Medical balloon and balloon catheter assembly

摘要

A medical balloon (10) of a balloon catheter assembly (70) includes a balloon wall (22) formed of at least two layers (30, 32). The first layer (30) is made of an impervious polymeric material. The second layer (32), which is integral with the first layer (30) is made of a radiopaque and/or echogenic material and a polymeric material. In the preferred embodiment, there is provided 60 to 80% by weight of radiopaque material in the second layer (32). It has been found that these concentrations of radiopaque material provide good visibility of the balloon under ultrasonic imaging.

主权项

1. A medical balloon for endoluminal location within a patient, the balloon including a first balloon layer consisting of impervious polymeric material, and a second balloon layer integrally coextruded with the outside of the first balloon layer, which second balloon layer consists of a combination of radiopaque and/or echogenic material and polymeric material, the polymeric material of the first balloon layer and the polymeric material of the second balloon layer mixing at the boundary between the first balloon layer and the second balloon layer, the second balloon layer including between 60 and 80% by weight of metallic radiopaque and/or metallic echogenic material, whereby the medical balloon is echogenic and/or radiopaque, and wherein the polymeric materials of the first and second balloon layers are the same.