Anesthetic vaporizers
US5146915A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Jan 8, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/147
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An anesthetic vaporizer 1 for use particularly with anesthetic agents having a low boiling point comprises an inlet 2 for carrier gas an an outlet 4 for carrier gas and gaseous anesthetic agents. A first passage 6 extends between the inlet 2 and the outlet 4. A flow restrictor 8 is located within the passage 6. A second passage 10 extends between the first passage 6 at a location upstream of the flow restrictor 8 and a regulator 14. The regulator 14 controls the pressure of gaseous anesthetic agent when flowing through a third passage 26 extending from a vaporizing chamber 12 containing anesthetic agent to the first passage 6 at a location downstream of the flow restrictor 8. A flow control valve 28 is located in the third passage 26.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.