Method to produce nasal and oral cannula breathing detection devices
US6533984B2 · kind B2 · utility
28Cited by
30References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Jun 18, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0625
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A 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.