Neonatal colorimetric carbon dioxide detector
US8256414B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 2009 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Nov 16, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2503/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An application for a neonatal calorimetric carbon dioxide detector has a calorimetric carbon dioxide detector membrane having a pH-sensitive chemical indicator that undergoes calorimetric change in the presence of carbon dioxide. The detector has a patient orifice in fluid communication with the baby's airway and a respiration equipment orifice connected to a breathing system. The patient orifice is connected to a breathing tube and when the breathing tube is inserted correctly into the trachea, as the baby exhales, carbon dioxide interacts with the calorimetric membrane which changes color based upon the concentration of carbon dioxide. The neonatal calorimetric carbon dioxide detector adds a volume of less than or equal to 1 mL after being attached to a breathing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.