Spiral implant for organ pathways
First Claim
1. An implant for insertion into a vessel of an organ comprising an elongated tubular conduit having anterior and posterior ends, said conduit defining a lumen having an inner surface and an outer surface defining internal and external diameters, respectively, said conduit being made from a material having restitutory forces;
- andsaid interior end being closed and a posterior region at the posterior end having means forming a clamping seat sized to engage a guide wire having an anterior end; and
said implant having a distended first configuration when said guide wire is inserted within the tubular conduit and a second configuration when said guide wire is removed from the tubular conduit, said second configuration being effected by the restitutory forces of the material,wherein said means forming the clamping seat is a radial constriction of the internal diameter beginning about 0.5 mm to 2 mm from said posterior end and extending to a length of about 0.1 mm to 10 mm.
1 Assignment
0 Petitions
Accused Products
Abstract
Spiral implant for organ pathways, in particular for blood vessels, which is formed from a primary spiral made of metal or a primary tube made of an elastic synthetic material whose anterior end is closed and whose cross-section at a distance of 0.5 to 2 mm from the other end of the primary spiral or primary tube is modified for a distance of 0.01 to 10 mm in order to make it possible to reposition the implant. The force required to displace the primary shape on the guide wire serving as an insertion aid amounts to 0.5N to 10N. The invention describes an implant (1) which can be used in vascular surgery or vascular radiology in order to achieve selective blood vessel occlusion. Insertion of the implant (1) into a blood vessel is brought about by means of an insertion catheter (16), with the implant being held in a rectilinear shape by a guide wire (14) slid therein. After the implant has reached the correct position in the organ pathway (18) it assumes a pre-formed spiral shape on the withdrawal of the insertion wire from inside it, thereby ensuring fixation of the implant in the organ pathway.
382 Citations
16 Claims
-
1. An implant for insertion into a vessel of an organ comprising an elongated tubular conduit having anterior and posterior ends, said conduit defining a lumen having an inner surface and an outer surface defining internal and external diameters, respectively, said conduit being made from a material having restitutory forces;
- and
said interior end being closed and a posterior region at the posterior end having means forming a clamping seat sized to engage a guide wire having an anterior end; and said implant having a distended first configuration when said guide wire is inserted within the tubular conduit and a second configuration when said guide wire is removed from the tubular conduit, said second configuration being effected by the restitutory forces of the material, wherein said means forming the clamping seat is a radial constriction of the internal diameter beginning about 0.5 mm to 2 mm from said posterior end and extending to a length of about 0.1 mm to 10 mm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- and
Specification