Anesthesia system

• US 8,567,389 B2
• Filed: 01/11/2008
• Issued: 10/29/2013
• Est. Priority Date: 03/28/2007
• Status: Active Grant

• Current Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Original Assignee: Drager Medical GmbH (FPS Vermögensverwaltung GmbH)
• Inventors: Schermeier, Olaf, Falb, Wolfgang, Kullik, Gtz, Scharmer, Ernst-Gnther
• Primary Examiner(s): Anderson, Lynee
• Assistant Examiner(s): PHILIPS, BRADLEY H
• Application Number:
  US12/527,280
• Publication Number:
  US 20110056490A1
• Time in Patent Office: 2,118 Days
• Field of Search: 128/200.14, 128/200.23, 128/200.24, 128/203.12, 128/203.15, 128/204.18, 128/204.21, 128/200.18, 128/200.21, 128/203.16, 128/203.26
• US Class Current: 128/200.21
• CPC Class Codes: A61M 16/01 specially adapted for anaesthetising A61M16/104, A61M16/18 take precedence
• CPC Class Codes: A61M 16/18 Vaporising devices for anaesthetic preparations
• CPC Class Codes: A61M 16/186 Locking systems
• CPC Class Codes: A61M 2205/215 Tilt detection, e.g. for warning or shut-off
• CPC Class Codes: A61M 2205/3386 Low level detectors
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2230/437 the anaesthetic agent concentration

Abstract

An anesthesia system is provided including an anesthesia apparatus, an anesthetic dispenser with an anesthetic reservoir, at least one dispensing parameter detection means, a contactless interface between the anesthesia apparatus and the anesthetic dispenser for transmitting data, especially the dispensing parameters, and for supplying the at least one dispensing parameter detection means with energy. The data and energy transmission takes place by means of electromagnetic field forces.

Claims

1. An anesthesia system, comprising:

an anesthesia apparatus;

an anesthetic dispenser with an anesthetic reservoir;

at least one dispensing parameter detection means, said at least one dispensing parameter detection means comprising a filling level detection means for capacitively detecting a quantity of anesthetic present in said anesthetic dispenser, said filling level detection means comprising capacitor surfaces, between which the anesthetic is located, wherein a changing quantity of anesthetic brings about a change in a quantity of dielectricity between the capacitor surfaces, which is an indicator of the quantity of anesthetic; and

a contactless interface between the anesthesia apparatus and the anesthetic dispenser for transmitting data, including dispensing parameters and for supplying the at least one dispensing parameter detection means with energy, wherein the data and energy transmission takes place by electromagnetic field forces.

2. An anesthesia system in accordance with claim 1, wherein the anesthesia apparatus has an energy transmitting antenna and the anesthetic dispenser has an energy receiving antenna for supplying the at least one dispensing parameter detection means with energy.

3. An anesthesia system in accordance with claim 1, wherein the anesthetic dispenser has a data transmission antenna and the anesthesia apparatus a data receiving antenna for the contactless transmission of data, especially the dispensing parameters.

4. An anesthesia system in accordance with claim 1, further comprising a memory for storing the detected dispensing parameters.

5. An anesthesia system in accordance with claim 1, further comprising a glass tube arranged laterally in relation to the anesthetic reservoir, the capacitor surfaces being designed as thin metal surfaces, which are applied preferably to a surface of the glass tube.

6. An anesthesia system in accordance with claim 1, wherein the at least one dispensing parameter detection means comprises an angle detection means for detecting a concentration of the anesthetic, which concentration is set on a setting wheel.

7. An anesthesia system in accordance with claim 6, wherein the angle detection means comprises an optical encoder.

8. An anesthesia system in accordance with claim 7, wherein the optical encoder comprises a light-transparent film provided with markings, a light transmitter and a light receiver, wherein said film is connected to the setting wheel and the light transmitter and the light receiver are arranged in relation to the film such that the light of the light transmitter is shielded at the markings and does not reach the light receiver during the motion of the setting wheel.

9. An anesthesia system in accordance with claim 1, wherein the at least one dispensing parameter detection means comprises a temperature detection means for detecting the temperature of the anesthetic.

10. An anesthesia system in accordance with claim 9, wherein the temperature detection means comprises a negative temperature coefficient (NTC) element.

11. An anesthesia system in accordance with claim 1, wherein the at least one dispensing parameter detection means comprises a position detection means for detecting an inclination of the anesthetic dispenser, the position detection means comprising a hollow sphere with at least two electrodes located at spaced locations from one another and a mercury drop, wherein the electrodes are provided in an upper area and the mercury drop in a lower area of the hollow sphere.

12. An anesthesia system in accordance with claim 4, wherein parameters of the anesthetic and of the anesthetic dispenser can be stored in the memory and polled by the anesthesia apparatus.

13. An anesthesia system in accordance with claim 1, wherein the anesthesia apparatus has at least one display means, with which the data transmitted from the anesthetic dispenser can be displayed.

14. An anesthesia system in accordance with claim 1, wherein the anesthesia apparatus has an alarm device, which signals the case in which the quantity of anesthetic in the anesthetic reservoir drops below a defined quantity.

15. An anesthesia system, comprising:

an anesthesia apparatus;

an anesthetic dispenser with an anesthetic reservoir;

at least one dispensing parameter detection means comprising a position detection means for detecting an inclination of the anesthetic dispenser, said position detection means comprising a hollow sphere with at least two electrodes located at spaced locations from one another and a mercury drop, wherein the electrodes are provided in an upper area and the mercury drop in a lower area of the hollow sphere; and

a contactless interface between the anesthesia apparatus and the anesthetic dispenser for transmitting data, including the dispensing parameters and for supplying the at least one dispensing parameter detection means with energy, wherein the data and energy transmission takes place by electromagnetic field forces.

16. An anesthesia system, comprising:

an anesthesia apparatus;

an anesthetic dispenser with an anesthetic reservoir;

at least one dispensing parameter detection device comprising a filling level detection device for capacitively detecting a quantity of anesthetic present in said anesthetic dispenser, said filling level detection device comprising capacitor surfaces, wherein anesthetic is located between one of said capacitor surfaces and another one of said capacitor surfaces, said filling level detection device determining the quantity of the anesthetic present in said anesthetic dispenser based on detection of changed dielectric properties between the capacitor surfaces, whereby said change in the quantity of dielectricity between the capacitor surfaces corresponds to a change in the quantity of anesthetic present in said anesthetic dispenser; and

a contactless interface between the anesthesia apparatus and the anesthetic dispenser for transmitting data, including the dispensing parameters and for supplying the at least one dispensing parameter detection device with energy, wherein the data and energy transmission takes place by electromagnetic field forces.

17. An anesthesia system in accordance with claim 16, further comprising:

a glass tube arranged laterally in relation to the anesthetic reservoir, said glass tube having an glass tube interior, said glass tube interior being in communication with said anesthetic reservoir, said capacitor surfaces comprising thin metal surfaces, said thin metal surfaces engaging said glass tube, said at least one dispensing parameter detection means comprises a position detection means for detecting an inclination of the anesthetic dispenser, the position detection means comprising a hollow sphere with at least two electrodes located at spaced locations from one another and a mercury drop, wherein the electrodes are provided in an upper area and the mercury drop in a lower area of the hollow sphere.