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US 8,944,987 B2Granted
Cardiac assistance device and method for the control thereof
AssigneeAdjucor UG
InventorsMarkus Meister, Stephen M. Wildhirt
Life of this patent
Estimating the term…
Abstract
A cardiac assistance, device has a supporting component, which surrounds the heart and on the inside of which a plurality of adjacent inflatable and deflatable chambers are provided, via which an inside wall can be displaced inward. The chambers have a fluidic connection to at least one pump via lines. A plurality of supply valves on the supply side are arranged between the pump and the chambers. Some individual chambers or groups of chambers are assigned dedicated supply valves, in order to drive the chambers individually or in groups.
Claims18
A cardiac assistance device comprising:
- a supporting component configured to surround a heart and having an inside wall arranged to face the heart;
- a plurality of inflatable chambers disposed within the supporting component and arranged to displace respective regions of the inside wall of the supporting component toward the heart when inflated;
- a fluid circuit comprising a pump having an inlet and an outlet, and a plurality of combined supply and discharge valves, each valve fluidly connecting the pump inlet and outlet to a respective subset of inflatable chambers, the valves being independently operable to control the supply and discharge of fluid to their respective subset of the inflatable chambers, and
- an intracorporeal fluid refill tank connected to the fluid circuit via a refill tank valve that allows fluid to flow from the refill tank into the fluid circuit when opened.
1 more element
A cardiac assistance device comprising:
- a supporting component configured to surround a heart and having an inside wall arranged to face the heart;
- a plurality of inflatable chambers disposed within the supporting component and arranged to displace respective regions of the inside wall of the supporting component toward the heart when inflated;
- a fluid circuit comprising a pump and a plurality of supply valves, each valve connecting the pump to a respective subset of inflatable chambers, the valves being independently operable to control their respective subset of the inflatable chambers;
- an intracorporeal fluid refill tank connected to the fluid circuit via a refill tank valve that allows fluid to flow from the refill tank into the fluid circuit when opened;
- and
- wherein the fluid circuit is an open system and each inflatable chamber has a discharge side vented to atmosphere.
3 more elements
Dependencies are inferred from the claim text.