Patent · US Active

Intravascular blood pump

US11648390B2 · kind B2 · utility

13Cited by

10References

19Claims

0Family size

Assignee

Abiomed Europe GmbH · DE

Inventors

Gerd Spanier · Aachen, DE
Frank Kirchhoff · Aachen, DE
Thorsten Siess · Aachen, DE
Dirk Michels · Aachen, DE

Key dates

Filing date	Feb 27, 2020
Grant date	May 16, 2023
Priority date	—
Expiry date	Jul 18, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M60/165
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An intravascular blood pump having a drive section (11), a catheter (14) fastened to the drive section proximally and a pump section (12) fastened to the drive section distally possesses an electric motor (21) whose motor shaft (25) is mounted in the drive section (11) with two radial sliding bearings (27, 31) and an axial sliding bearing (40). During operation, purge fluid is conveyed through the bearing gap of the axial sliding bearing (40) and further through the radial sliding bearing (31) at the distal end of the drive section (11). The purge fluid is highly viscous, for example 20% glucose solution.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.