US 12,458,791 B2Granted

Heart assist device

AssigneeCardiacBooster B.V.

InventorDaniël Immanuel Michaël van Dort

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Abstract

A device (2) for providing circulatory assistance is provided and comprises a balloon (4) comprising a membrane defining a cavity having an internal volume (Vc), wherein the balloon comprises a proximal portion (4a) comprising a proximal end and a distal portion (4b) comprising a distal end. The device (2) further comprises a first catheter, affixed to the distal end of the balloon (4) at a first fixation point (P1) and a second catheter (8), affixed to the proximal end of the balloon at a second fixation point (P2). The second catheter (8) is configured for axial movement with respect to the first catheter or guide wire (6) between a first position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by a first distance (Dx), which is variable to bring about inversion of the balloon.

Claims11

Dependent claims

A heart support device for circulatory assistance, the heart support device comprising:

a catheter or guidewire;
a receptacle having an internal volume, the receptacle extending from a rim to a closed distal end, the rim defining an open proximal end,
wherein a proximal portion of the receptacle comprises an inner wall portion and a distal portion of the receptacle comprises an outer wall portion, the inner wall portion and the outer wall portion being connected to each other at the rim to form a closed cavity between the inner and outer wall portions, wherein the outer wall portion is more rigid than the inner wall portion,
wherein the catheter or guidewire extends through the inner wall portion, and
wherein at least a portion of the inner wall portion is configured for movement in a proximal direction with respect to the outer wall portion to transition from a concave configuration to a convex configuration;
and
an actuation system configured to move the inner wall portion between the concave and convex configurations to displace a fluid from the receptacle.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/434,789Filed 28 Feb 2020
Priority: NL 20226601 Mar 2019
Published: US 2022/0161017 A126 May 2022
Granted: 4 Nov 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61M 60/427
For positive displacement blood pumps: the force acting on the blood contacting member being hydraulic or pneumatic
A61M 60/17
Implantable in, on, or around the heart: inside a ventricle, e.g. intraventricular balloon pumps
A61M 60/268
Including a displacement member directly acting on the blood: the displacement member being flexible, e.g. membranes, diaphragms or bladders
A61M 60/295
Type thereof: balloon pumps for circulatory assistance