Stretchable encapsulation material with high dynamic water resistivity and tissue-matching elasticity
US12420104B2 · kind B2 · utility
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3References
15Claims
0Family size
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Key dates
| Filing date | Jan 21, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Oct 27, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/206
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An encapsulation for an implantable medical device is provided defined by a blend of high molecular weight polyisobutylene and low molecular weight polyisobutylene solution to provide desirable stretchability and elastic properties without sacrificing water resistance properties of the encapsulation. The encapsulation material is flexible thus allowing the medical device to possess tissue matching flexibility and retain long-term normal function free from liquid infiltration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.