METHOD OF PREVENTING OR ALLEVIATING HIGH VENOUS PRESSURE DUE TO TRICUSPID REGURGITATION IN A PATIENT

• US 20150290006A1
• Filed: 12/04/2013
• Published: 10/15/2015
• Est. Priority Date: 12/07/2012
• Status: Abandoned Application

• Current Assignee: Karl Stangl, Michael Laule
• Original Assignee: Karl Stangl, Michael Laule
• Inventors: Stangl, Karl, Laule, Michael
• Application Number:
  US14/441,217
• Publication Number:
  US 20150290006A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/94 Stents retaining their form, i.e. not being deformable, after placement in the predetermined place
• CPC Class Codes: A61F 2002/821 Ostial stents
• CPC Class Codes: A61F 2250/0062 Kits of prosthetic parts to be assembled in various combinations for forming different prostheses

Abstract

The present invention is directed to a method of preventing or alleviating high venous pressure in a patient, the method comprising the steps of implanting a first biocompatible scaffold into the lumen of the vena cava inferior (VCI) of the patient, preferably at a site between the right atrium and the ostium of the hepatic veins; optionally implanting a second biocompatible scaffold into the lumen of the first biocompatible scaffold; and placement of a first valve into the lumen of the first or second biocompatible scaffold; wherein the biocompatible scaffolds and the first valve are configured and arranged to permit blood flow towards a right atrium of the patient and to prevent blood flow in an opposite direction.

Claims

1. A method of preventing or alleviating high

venous pressure in a patient, the method comprising:

implanting a first biocompatible scaffold into the lumen of the vena cava inferior (VCI) the patient, preferably at a site between the right atrium and the ostium of the hepatic veins;

optionally implanting a second biocompatible scaffold into the lumen of the first biocompatible scaffold;

placement of a first valve into the lumen of the first or second biocompatible scaffold;

wherein the biocompatible scaffolds and the first valve are configured and arranged to permit blood flow towards a right atrium of the patient and to prevent blood flow in an opposite direction.

2. The method according to claim 1, further comprising:

implanting a third biocompatible scaffold into the lumen of the vena cava superior (VCS) of the patient, preferably at a site between the right atrial junction and the ostium of the azygos vein;

optionally implanting a fourth biocompatible scaffold into the lumen of the first biocompatible scaffold;

placement of a second valve into the lumen of the third or fourth biocompatible scaffold;

wherein the biocompatible scaffolds and the second valve are configured and arranged to permit blood flow towards a right atrium of the patient and to prevent blood flow in an opposite direction.

3. The method of claim 1, wherein the first valve is placed into the vena cava inferior first and thereafter the second valve is placed into the vena cava superior.

4. The method of claim 1, wherein the second valve is placed into the vena cava superior first and thereafter the first valve is placed into the vena cava inferior.

5. The method according to claim 1, wherein the biocompatible scaffolds and/or the valves are implanted or placed by endolumial delivery, e.g. by delivery via a blood vessel selected from a femoral vein, a jugular vein and a subclavian vein.

6. The method according to claim 1, wherein the first, second, third and/or fourth biocompatible scaffold is a stent or a bioadsorbable scaffold, respectively.

7. The method according to claim 1, wherein the first, second, third and/or fourth biocompatible scaffold is designed to be expandable, so that it can be implanted by introducing the scaffold in a collapsed state until the desired position is reached and by fixing the scaffold at the desired position by expanding the scaffold.

8. The method according to claim 1, wherein the first and second valve each has at least one valve leaflet formed of a synthetic material or of a biologic material.

9. The method according to claim 8, wherein the biologic material is derived or obtained from a pericardium, e.g. from human, bovine, equine, porcine or ovine pericardium.

10. The method according to claim 1, wherein the first biocompatible scaffold is longer than the second biocompatible scaffold.