Pressure regulating systems for expandable insertion devices
US8631801B2 · kind B2 · utility
52Cited by
21References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2009 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Sep 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7879
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Earpieces and expandable insertion devices are provided. An earpiece includes an ambient sound microphone (ASM); an ear canal microphone (ECM); an ear canal receiver (ECR); and an inflatable sealing section. The sealing section includes at least one pressure valve. The at least one pressure valve opens when the pressure in the sealing section is greater than an ambient pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.