US 12,005,208 B2
Intravascular blood pump with balloon
Thorsten Siess, Aachen (DE); Christoph Nix, Aachen (DE); and Walid Aboulhosn, Aachen (DE)
Assigned to ABIOMED EUROPE GMBH, Aachen (DE)
Filed by Abiomed Europe GMBH, Aachen (DE)
Filed on Nov. 2, 2022, as Appl. No. 17/979,015.
Application 17/979,015 is a continuation of application No. 16/610,773, granted, now 11,517,726, previously published as PCT/EP2018/061350, filed on May 3, 2018.
Claims priority of application No. 17169581 (EP), filed on May 4, 2017.
Prior Publication US 2023/0137664 A1, May 4, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/10 (2013.01); A61M 60/13 (2021.01); A61M 60/135 (2021.01); A61M 60/237 (2021.01); A61M 60/833 (2021.01); A61M 60/861 (2021.01); A61M 60/896 (2021.01)
CPC A61M 25/1002 (2013.01) [A61M 60/13 (2021.01); A61M 60/135 (2021.01); A61M 60/237 (2021.01); A61M 60/833 (2021.01); A61M 60/861 (2021.01); A61M 60/896 (2021.01); A61M 2025/1052 (2013.01); A61M 2025/1061 (2013.01); A61M 2025/1084 (2013.01); A61M 2205/0266 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An intravascular blood pump for percutaneous insertion into a patient's blood vessel, comprising:
a catheter,
a pumping device attached to the catheter, the pumping device having a blood flow inlet, a blood flow outlet and a rotor so as to cause blood to flow from the blood flow inlet to the blood flow outlet,
a ring seal disposed on the pumping device between the blood flow inlet and the blood flow outlet, the ring seal configured to assume a collapsed configuration and an expanded configuration and configured to contact and seal against an inner wall of the patient's blood vessel when inserted therein in the expanded configuration so as to separate a proximal area of the patient's blood vessel from a distal area of the patient's blood vessel, and
a support member disposed inside the ring seal in order to support the ring seal from inside the ring seal, wherein the support member is configured to collapse at least partially when a predetermined pressure difference during operation of the intravascular blood pump between the proximal area of the patient's blood vessel and the distal area of the patient's blood vessel acts on the ring seal, wherein the support member withstands a pressure difference during operation of the intravascular blood pump between the proximal area of the patient's blood vessel and the distal area of the patient's blood vessel of up to 100 mmHg before it collapses, and
wherein the support member comprises at least one elastic wire.