Vessel implant for the treatment of an aneurysm

Abstract

The invention relates to a vessel implant for the treatment of an aneurysm, i.e. a dilatation of the cross-sectional area of a blood vessel, comprising an elongate body which has an inlet opening, an outlet opening and a passage connecting the inlet opening to the outlet opening for blood flowing through the blood vessel, with the passage being bounded in the peripheral direction by a blood-impermeable wall, and with the inlet opening having a larger cross-sectional area than the outlet opening.

1 . A vessel implant for the treatment of an aneurysm, i.e. a dilatation of the cross-sectional area of a blood vessel, comprising an elongate body which has an inlet opening, an outlet opening and a passage connecting the inlet opening to the outlet opening for the blood flowing through the blood vessel, with the passage being bounded in the peripheral direction by a blood-impermeable wall, characterized in that
 the inlet opening has a larger cross-sectional area than the outlet opening.   
   
   
       2 . A vessel implant in accordance with  claim 1 , characterized in that the body, a section of the body located between the inlet opening and the outlet opening and/or the passage converges/converge from the inlet opening toward the outlet opening. 
   
   
       3 . A vessel implant in accordance with  claim 2 , characterized in that the convergence is uniform, continuous and/or conical. 
   
   
       4 . A vessel implant in accordance with  claim 1 , characterized in that the body is designed for contact with the vessel wall of the blood vessel in the region of the inlet opening and/or at a section of the body adjoining the inlet opening. 
   
   
       5 . A vessel implant in accordance with  claim 4 , characterized in that the section of the body adjoining the inlet opening is cylindrical. 
   
   
       6 . A vessel implant in accordance with  claim 4 , characterized in that the section of the body adjoining the inlet opening has a blood permeable wall. 
   
   
       7 . A vessel implant in accordance with  claim 1 , characterized in that the outer dimension of the body is dimensioned in the region of the outlet opening such that the body is spaced apart from the vessel wall of the blood vessel in the region of the outlet opening. 
   
   
       8 . A vessel implant in accordance with  claim 1 , characterized in that the body is provided with blood-permeable fixing means for the end of the body at the outlet opening side, said fixing means being designed for contact with the vessel wall of the blood vessel. 
   
   
       9 . A vessel implant in accordance with  claim 8 , characterized in that the fixing means are designed to hold the body spaced apart from the vessel wall of the blood vessel in the region of the outlet opening 
   
   
       10 . A vessel implant in accordance with  claim 8 , characterized in that the fixing means are provided at the body in the region of the outlet opening. 
   
   
       11 . A vessel implant in accordance with  claim 8 , characterized in that the fixing means are made as a mesh, as a plurality of fixing elements respectively projecting from the body with a radial component and/or as a conical stent. 
   
   
       12 . A vessel implant in accordance with  claim 8 , characterized in that the body or a part thereof is made in one piece with the fixing means. 
   
   
       13 . A vessel implant in accordance with  claim 1 , characterized in that the wall of the body is rigid, flexible or partly rigid and partly flexible. 
   
   
       14 . A vessel implant in accordance with  claim 1 , characterized in that the vessel implant, in particular the body or the wall of the body, is made in multiple parts. 
   
   
       15 . A vessel implant in accordance with  claim 1  having a first body in combination with a second said vessel implant having a second body, said first and second bodies being connected to one another at a branch of the vessel implant in the region of their respective entry openings. 
   
   
       16 . A vessel implant in accordance with  claim 15 , characterized in that the two bodies have a common section adjoining the branch for contact with the vessel wall of the blood vessel.