Nitinol braid processing procedure
US12268860B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2022 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Nov 26, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expandable sheath for use in an intravascular blood pump. The sheath has a sheath frame surrounded by one or more sleeves. The frame may have at least one of a braid, a wound wire, and a laser-cut material. The sheath frame may be a metal that is at least one of Nitinol and stainless steel. The sleeves may be made of one or more plastics. The expandable sheath is manufactured by surrounding the sheath frame with the sleeves and heating the sleeves and the frame around a mandrel. The frame and sleeves are heated in multiple steps, along multiple areas of the sheath, and to different temperatures and for different time periods. The temperatures at which the sheath is heated, and the time periods over which the sheath is heated, are selected such that after heating, the materials of the plastic sleeves penetrate the sheath frame to various depths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.