Injection system for delivery of a gaseous substance
US7201166B2 · kind B2 · utility
39Cited by
34References
12Claims
0Family size
Inventors
Key dates
| Filing date | Aug 6, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Dec 20, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/0275
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injection system for the delivery of a gaseous substance to a patient respiratory system is described herein. The injection system includes a control unit and a valve assembly including a valve and a valve actuator allowing partial opening of the valve and controlled by the control unit. The control unit is supplied with gas flow data and controls the valve assembly so that the opening of the valve is a function to the gas flow to thereby enable the control over the concentration of the gaseous substance delivered to the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.