公开(公告)号：US20230372103A1

公开(公告)日：2023-11-23

申请号：US17918810

申请日：2021-04-09

申请人： CORTRONIK GmbH

发明人： Michael Stiehm ,  Wolfram Schmidt ,  Niels Grabow ,  Jonas Keiler ,  Maria Reumann ,  Andreas Wree ,  Andreas Hof ,  Heinz Mueller ,  Carsten Momma ,  Klaus-Peter Schmitz ,  Karsten Koop ,  Julia Schubert ,  Kerstin Lebahn ,  Sabine Illner ,  Sabine Kischkel ,  Jonathan Ortelt

IPC分类号： A61F2/24

CPC分类号： A61F2/2475 ,  A61F2230/0017

摘要： A venous valve prosthesis for transporting a flow of body fluid in a vessel in a predetermined direction includes
includes a hollow-cylindrical support structure. A skirt is connected to the support structure and forms a closed, circumferential jacket of the support structure. The prosthesis also includes a valve leaflet arrangement with a first valve leaflet and a second valve leaflet, each being connected to the skirt. A downstream edge of the first valve leaflet and a downstream edge of the second valve leaflet are opposite to each other and configured in such a manner that in a first state of the valve leaflet arrangement they form an opening for blood to flow through in the predetermined direction and in a second state of the valve leaflet arrangement the opening is closed and to prevent a backflow of blood in a direction opposite to the predetermined direction. A ratio of the inner diameter of the support structure to its length in the predetermined direction is at most 1.