Method for dynamic regulations (counter pulsation) of the venous return to the heart for the treatment of patients with heart failure
US9820750B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 2, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Sep 24, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention relates to a method that comprises the introduction of a catheter via left subclavian vein, advancing into the right atrium and then positioning it in the inferior vena cava, just at the cava-diaphragm junction, where it is anchored at its extreme; and thereafter an external inflation of a balloon positioned in said catheter takes place through a physiological solution to reach a diameter corresponding to half the diameter of the inferior vena cava, resulting in hemi-occlusion in the expiration phase (breath-out) and total occlusion for a short period during the inspiration phase (breath-in), regulating (normalizing) the venous return and decreasing the cardiac volume overload, as a treatment for heart failure. The invention also comprises hydromechanics devices to normalize the venous return in the circulatory system. Said venous return is increased in 90% of patients with heart failure. In particular, it refers to a combined catheter with an inflatable balloon, producing said balloon a cyclical occlusion of the inferior vena cava, proximal to the right atrium (RA), which comprises of means for its fixation within said vein, as well as the capacity of modifying the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.