Implantable pump impeller thermal knockdown
US10744247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Aug 3, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to kits and methods for calibrating a pump through performance of a thermal knockdown process including demagnetization of an impeller of the pump where the impeller is separate from the pump. By heat treating the impeller, a property of magnetic interaction of the pump is reduced in a repeatable manner. A kit includes a pump with impeller, a controller and an oven. The method generally involves an iterative process of testing the pump for a property related to magnetic interaction of the elements of the pump, removing the impeller from the pump, heating the impeller under controlled conditions, then placing the impeller back into the pump to repeat the test performed initially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.