US 2023/0248961 A1 · CARDIAC ASSIST DEVICE

Abstract

A cardiac assist device (1) with a cup element (2), an inner balloon element (5) and a tube element (6). The cup element (2) has a cup wall (2a), one or more in-flow openings (3), and an outflow element (4 having an aperture (4a). The inner balloon element (5) is positioned inside the cup element (2) free from the outflow element (4). The tube element (6) is arranged for inflating and deflating the inner balloon element (5) during operation. During operation in a pumping operational mode, the combination of first material, dimensions of the cup wall (2a), and dimensions of the outflow element (4) provides a containment force by the cup element (2) counteracting an outward directed force of the inner balloon element (5).

Claims29

Dependent claims

A cardiac assist device, comprising:

a cup comprising:
a cup wall defining an inner cup volume;
one or more in-flow openings arranged in the cup wall to allow a first fluid to flow into the cup during operation;
and
an outflow element connected in fluid communication with the cup wall and having an aperture for expelling the first fluid during operation;
an inner balloon comprising a balloon wall defining an inner balloon volume, the inner balloon being positioned inside the cup;
and
a tube in fluid communication with the inner balloon configured to inflate the inner balloon during a pumping operational mode and deflate the inner balloon during a filling operational mode,
wherein the cup is configured to counteract an outward directed force generated by the inner balloon during the pumping operational mode.

6 more elements

Dependencies are inferred from the claim text.

Cardiac assist device

Life of this patent

Cardiac assist device

Life of this patent

Abstract

Claims29