The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2026
Filed:
Apr. 09, 2021
Cortronik Gmbh, Rostock, DE;
Michael Stiehm, Rostock, DE;
Wolfram Schmidt, Rostock, DE;
Niels Grabow, Rostock, DE;
Jonas Keiler, Rostock, DE;
Maria Reumann, Rostock, DE;
Andreas Wree, Elmenhorst, DE;
Andreas Hof, Luebeck, DE;
Heinz Mueller, Rostock, DE;
Carsten Momma, Rostock, DE;
Klaus-Peter Schmitz, Rostock, DE;
Karsten Koop, Rostock, DE;
Julia Schubert, Rostock, DE;
Kerstin Lebahn, Rostock, DE;
Sabine Illner, Rostock, DE;
Sabine Kischkel, Rostock, DE;
Jonathan Ortelt, Rostock, DE;
BIOTRONIK AG, Buelach, CH;
Abstract
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.