Patent ID: 8167934

Claim:
An implant for placement in a blood vessel, the implant comprising: an endoprosthesis having a longitudinal axis, and being configured to generate a radial deployment force so as to be deployed spontaneously in a radial manner from a compressed configuration to a dilated configuration, the endoprosthesis delimiting an inner passage for blood flow and an outer peripheral surface; at least one runner for radial support and co-operating with the endoprosthesis, the at least one runner comprising a separation surface extending radially with respect to the outer peripheral surface and at least one member being configured to be deployed away from the longitudinal axis relative to the separation surface; wherein the runner is arranged so as to delimit a confinement housing which extends between the separation surface and the outer peripheral surface; and a radial spacer which is formed by the separation surface and the at least one member, and is configured to generate a force to deploy the at least one member away from the separation surface; wherein, when the implant is retained in a state of radial compression around the at least one runner, with the endoprosthesis being in the dilated configuration, the maximum radial width of the confinement housing is less than the maximum radial width of the spacer, the spacer having a maximum radial width which is not equal to zero; wherein the runner is configured to generate a radial force so as to deploy the radial spacer away from the separation surface; and wherein the force generated by the radial spacer for deploying the at least one member away from the separation surface is greater than the total of the radial deployment force generated by the endoprosthesis and the force for retaining the separation surface in a remote state relative to the outer peripheral surface, when the implant is retained in a state of radial compression around the at least one runner.