Patent · US Expired

Vaporizer

US6230666A · kind A · utility

9Cited by

6References

8Claims

0Family size

Assignee

Siemens Elema AB · SE

Inventors

Sten A. Wallin · Midland, US
Ivars Alksnis · Knivsta, SE
Håkan Hedenberg · Järfälla, SE

Key dates

Filing date	Jan 31, 2000
Grant date	May 15, 2001
Priority date	—
Expiry date	Jan 31, 2020

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M16/147
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A vaporizer for vaporizing liquid anesthetic has a chamber for liquid anesthetic, a gas flow passage, a throttle in the gas flow passage, a first connection between the chamber and the gas flow passage upstream from the throttle and a second connection between the chamber and the gas flow passage downstream from the throttle. The vaporizer is more accurate and usable with different liquid anesthetics by having an outlet valve arranged by an outlet in the vaporizer, this outlet valve being regulated by the pressure upstream from the throttle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.