Cuffless tracheal tube
US8408210B2 · kind B2 · utility
7Cited by
9References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/0283
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
According to various embodiments, a tracheal tube ventilating device includes a sealing portion near a distal end of the tube. The sealing portion has an electroactive polymer configured to undergo a clinically effective change in volume, thickness, or both upon application of an electrical potential. Such a change in volume, thickness, or both enables sealing of the device against an inner surface of a trachea while permitting the free passage of ventilating gas through the tube. In addition, at least one electrical conductor is coupled to the electroactive polymer and is configured to apply the electrical potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.