Patent ID: 9017309
Filing Date: 2015-04-28
Classification: A61B,A61M

Abstract:
1. A thrombus-aspiration catheter comprising: a basal end-side tube; a front end-side tube connected to a front end side of the basal end-side tube; a terminal aspiration tube connected to a front end of said front end-side tube, wherein said terminal aspiration tube is more flexible than said front end-side tube, while the front end side of said front end-side tube and a basal end side of said terminal aspiration tube are so connected with each other that a hardness changes stepwisely, and wherein a front end of said front end-side tube and a basal end side of said terminal aspiration tube have complementary-shaped end surfaces so that both end surfaces are connected with each other, and at least part of the front end of said front end-side tube overlaps with at least part of the basal end side of said terminal aspiration tube in a direction orthogonal to a longitudinal direction of the thrombus-aspiration catheter; and a solid contrast marker member, wherein said terminal aspiration tube is a double lumen tube having an aspiration lumen and a guide wire lumen, said front end-side tube is a triple lumen tube having a guide wire lumen, an aspiration lumen and a core wire lumen, and said solid contrast marker member is inserted into the core wire lumen of the front end-side tube on the front end of the front end-side tube.