Medical device and method of manufacture yielding medical devices with consistent surface features
US11877725B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 6, 2021 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Apr 15, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/246
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A medical scope device such as an endoscope is produced using a cast aluminum process including a molten casting aluminum alloy including a maximum of 0.2-0.3% Si and at least 5% Zn. The process includes providing an investment casting mold, casting the aluminum alloy in the mold to create a component and removing the mold from the component, post-machining the component to meet a desired specification, and after post-machining the component, performing surface finishing, such as centrifugal barrel finishing (CBF) sufficient to remove impurities on casting surfaces by 2-3 mils, then coating the component with a micro-crystalline aluminum anodic coating of at least 0.5 mil thickness. A medical scope and product-by-process is also provided employing such techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.