Patent · US Active

Dispensing device for introducing an anesthetic into a breathing gas stream

US11623064B2 · kind B2 · utility

0Cited by

9References

19Claims

0Family size

Assignee

DRÄGERWERK AG & CO. KGAA · DE

Inventors

Norbert WRUCK · Lübeck, DE
Michael Riecke · Stade, DE

Key dates

Filing date	Jul 13, 2017
Grant date	Apr 11, 2023
Priority date	—
Expiry date	Jan 5, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/50
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A dispensing device for dispensing anesthetic in a breathing gas stream includes a flow duct (42) for an anesthetic-containing breathing gas stream, a control unit (5) and a first temperature sensor (54). An anesthetic feed device (45) has an evaporation surface (46) arranged in the flow duct (42). The first temperature sensor (54) detects the temperature of the evaporation surface (46) and sends a first temperature signal (T1) to the control unit (5). A second temperature sensor (53) detects the temperature of the breathing gas stream in the flow duct (42) and sends a second temperature signal (T2) to the control unit (5). The control unit (5) is configured to determine an anesthetic concentration based on the first and second temperature signals (T1, T2).

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