Tracheal cannulas and stents
US5017188A · kind A · utility
11Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Mar 6, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0253
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosure is made of an improvement in the T-shaped tracheal stents and in the tracheal cannulas of the prior art, permitting one to conveniently have a complete and unitary unit including a closure member affixed to the device of the invention. Unidirectional retention sleeves are also described, which may be used in conjunction with the cannulas and the stents of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.