Invention Grant
- Patent Title: Blood pump
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Application No.: US17386149Application Date: 2021-07-27
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Publication No.: US11771884B2Publication Date: 2023-10-03
- Inventor: Thorsten Siess , Walid Aboulhosn
- Applicant: Abiomed Europe GmbH
- Applicant Address: DE Aachen
- Assignee: ABIOMED EUROPE GMBH
- Current Assignee: ABIOMED EUROPE GMBH
- Current Assignee Address: DE Aachen
- Agency: Botos Churchill IP Law LLP
- Priority: EP 159676 2015.03.18
- Main IPC: A61M60/205
- IPC: A61M60/205 ; A61M60/414 ; A61M60/237 ; A61M60/825 ; A61M60/13 ; A61M60/117 ; A61M60/806 ; A61M60/824 ; A61M60/82 ; A61M60/148 ; A61M60/422 ; A61M60/211 ; A61M60/232 ; A61M60/221

Abstract:
A blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet connected by a passage, and an impeller rotatable about an axis of rotation. A surface of the impeller faces a surface of the pump casing spaced from said surface of the impeller by a clearance, the clearance being in fluid connection with the passage at a clearance transition point. At least one wash out channel extends through the impeller and is in fluid connection with the passage via a first opening and with the clearance via a second opening. The first opening of the wash out channel is arranged in an area of the impeller that is under a higher pressure than the clearance transition point so as to cause a blood flow from the first opening through the wash out channel and the clearance to the clearance transition point.
Public/Granted literature
- US20220080180A1 BLOOD PUMP Public/Granted day:2022-03-17
Information query
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