US 11,596,727 B2Granted

Blood pump with flow cannula

AssigneeAbiomed Europe GmbH

InventorsThorsten Siess, Gerd Spanier, Walid Aboulhosn

Life of this patent

Estimating the term…

Loading patent…

Abstract

A blood pump for supporting a patient's heart includes a flow cannula having a distal portion including a distal end and a proximal portion including a proximal end opposite the distal end, the distal end of the flow cannula configured to be connected to the patient's heart or a blood vessel to establish fluid communication between the blood pump and the patient's heart and blood vessel, respectively. The flow cannula further includes an intermediate portion attached to the distal portion and the proximal portion, wherein the intermediate portion allows twisting thereof with a lower force than the distal portion and the proximal portion. The intermediate portion can be fully occluded by twisting it. At least a portion of the intermediate portion either alone or in combination with the distal portion is adapted to be permanently attached to the patient's heart or a blood vessel.

Claims6

Dependent claims

A system, comprising:

a flow cannula for a blood pump comprising:
a distal end of the flow cannula;
a proximal end of the flow cannula opposite the distal end of the flow cannula along a longitudinal axis of the flow cannula, the distal end of the flow cannula configured to be connected to a patient's heart or a blood vessel in order to establish a fluid communication between the blood pump and the patient's heart and blood vessel, respectively;
a distal portion of the flow cannula including the distal end of the flow cannula;
a proximal portion of the flow cannula including the proximal end of the flow cannula;
and
an intermediate portion attached to at least one of the distal portion of the flow cannula and the proximal portion of the flow cannula, wherein the intermediate portion allows twisting thereof with a lower force than at least one of the distal portion of the flow cannula and the proximal portion of the flow cannula;
wherein the intermediate portion is configured to be fully occluded by twisting thereof;
and
wherein at least a portion of the intermediate portion, alone or in combination with the distal portion of the flow cannula, is configured to be permanently attached to the patient's heart or the blood vessel;
and
at least one clip sized and configured to be placed around the intermediate portion of the flow cannula in order to fully occlude the flow cannula.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/556,638Filed 20 Dec 2021 · division
Priority: EP 161868601 Sep 2016
Published: US 2022/0168558 A12 Jun 2022
Granted: 7 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61M 1/3659
Interfaces between patient blood circulation and extra-corporal blood circuit: cannulae pertaining to extracorporeal circulation
A61M 60/178
Implantable in, on, or around the heart: drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to…
A61M 60/216
Non-positive displacement blood pumps: including a rotating member acting on the blood, e.g. impeller
A61M 60/237
Including a rotating member acting on the blood, e.g. impeller: the blood flow through the rotating member having mainly axial components, e.g.…

Family

PCT/EP2017/071890Parent of this division · filed 31 Aug 2017
US 2022/0168558 A1Pre-grant publication · published 2 Jun 2022
Application16/329,252Parent of this division
US 11,235,140 B2Parent of this division
US 2019/0216993 A1Published application
US 11,596,727 B2This patent

From the US filing history. Foreign family members aren’t listed.