Nasal and oral cannula breathing detection device
US7364682B2 · kind B2 · utility
5Cited by
39References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2003 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Mar 21, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0625
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cannula and method of forming a cannula by forming a cannula mandrel assembly having a nare mandrel, a main body mandrel and mouthpiece mandrel; heating the cannula mandrel assembly, applying a polymeric material to the cannula mandrel assembly to provide a desired material thickness on the mandrel assembly to form the cannula, curing the polymeric material of the formed cannula and extracting the mandrel assembly from the cannula by disassembly and removal of the mandrel assembly parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.