Gas-filled chamber for catheter pump motor assembly
US11491322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2017 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Jul 25, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter pump system is disclosed. The catheter pump system can include a shaft assembly and an impeller coupled with a distal portion of the shaft assembly. The catheter pump system can include a motor assembly, the motor assembly comprising a chamber and a shaft-driving portion disposed in the chamber. The shaft-driving portion can be configured to impart rotation to the impeller through the shaft assembly. The chamber can be filled with a gas that at least partially surrounds the shaft-driving portion. A fluid pathway can convey fluid proximally during operation of the catheter pump system. A bypass pathway can be in fluid communication with the fluid pathway, the bypass pathway configured to direct at least a portion of the fluid to bypass the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.