Fully implantable direct myocardium assist device
Inventors
Criscione, John C. • Leschinsky, Boris
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-10507271-B2
Publication Date
2019-12-17
Expiration Date
Abstract
The present invention provides an implantable cardiac compression device comprising: an inflatable cardiac compression jacket configured when inflated to directly compress a heart and assist in displacing blood therefrom, a channel that connects the inflatable cardiac compression jacket and an expandable fluid reservoir configured to contain a fluid when displaced compresses the inflatable cardiac compression jacket, and a fluid driver operably connected to the inflatable cardiac compression jacket and to the expandable fluid reservoir, wherein the fluid driver is configured to inflate the cardiac compression jacket and to deflate the expandable fluid reservoir during systole of the heart; said driver is further configured to deflate the cardiac compression jacket and to inflate the expandable fluid reservoir during diastole of the heart.
Core Innovation
The invention relates to an implantable cardiac compression device comprising an inflatable cardiac compression device with a resilient inner panel in contact with a heart periphery and one or more membranes contoured to provide curvatures generally in the shape of the heart to affect the end-diastolic heart volume. The device further includes an inflatable outer panel comprising a plurality of inflatable membranes positioned completely around the resilient inner panel to inflate to affect the end-systolic heart volume completely around the heart periphery, together with a fluid connection for inflation and deflation.
The invention further includes an expandable fluid reservoir in communication with the fluid connection and adapted to be positioned adjacent the pericardium and configured to house a fluid when displaced from the inflatable cardiac compression jacket. The device includes a fluid driver operably connected to the inflatable cardiac compression jacket and to the expandable fluid reservoir, where the fluid driver fills the cardiac compression jacket with fluid at least partially removed from the expandable fluid reservoir during systolic ejection by the heart and fills the expandable fluid reservoir with fluid at least partially removed from the cardiac compression jacket during diastolic filling of the heart.
In additional embodiments, the inflatable cardiac compression device and adjacent components are further refined with membranes and/or sensor and electrode functionality, and with the use of bioactive agents in the cardiac compression jacket and/or expandable fluid reservoir. The disclosed structural configurations position the expandable fluid reservoir adjacent the pericardium and describe embodiments configured to influence heart cycle volume states, with system components described as fully implantable and adapted for operation synchronously with systolic ejection and diastolic filling.
Claims Coverage
The independent claim defines an implantable cardiac compression system with three inventive features: an inflatable cardiac compression jacket, an expandable fluid reservoir adjacent the pericardium, and a fluid driver that shifts fluid between the jacket and reservoir synchronously with systolic ejection and diastolic filling.
Inflatable cardiac compression device with curvatures shaping end-diastolic and end-systolic heart volume
An inflatable cardiac compression device comprising a resilient inner panel in contact with a heart periphery comprising one or more membranes contoured to provide curvatures generally in the shape of the heart to affect the end-diastolic heart volume, an inflatable outer panel comprising a plurality of inflatable membranes positioned completely around the resilient inner panel to inflate to affect the end-systolic heart volume completely around the heart periphery, and a fluid connection in communication with the inflatable outer panel for inflation and deflation.
Expandable fluid reservoir adjacent the pericardium to receive displaced fluid
An expandable fluid reservoir in communication with the fluid connection and adapted to be positioned adjacent the pericardium and configured to house a fluid when displaced from the inflatable cardiac compression jacket.
Fluid driver cyclically shuttling fluid between jacket and reservoir with systole and diastole
A fluid driver operably connected to the inflatable cardiac compression jacket and to the expandable fluid reservoir, wherein the fluid driver is configured to fill the cardiac compression jacket with the fluid at least partially removed from the expandable fluid reservoir during systolic ejection by the heart and is further configured to fill the expandable fluid reservoir with fluid at least partially removed from the cardiac compression jacket during diastolic filling of the heart.
The claim coverage centers on a fully implantable cardiac compression system that uses an inflatable cardiac compression jacket with a resilient inner panel and inflatable outer membranes to affect end-diastolic and end-systolic heart volume, together with an expandable fluid reservoir positioned adjacent the pericardium. A fluid driver cyclically transfers fluid between the jacket and the reservoir in synchrony with systolic ejection and diastolic filling.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
Interested in licensing this patent?