Tracheostomy tubes
US8783254B2 · kind B2 · utility
1Cited by
20References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2006 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Jun 15, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0497
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tracheostomy tube has an inner skeletal frame (40) of a relatively stiff plastics material having a longitudinal spine (45) and several annular ribs (42) extending around the frame. A thin, flexible plastics sheath (41) is bonded to the outside of the frame (40). The construction enables a maximum internal diameter with a minimum external diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.