Filling adapter for a metering device

• US 5,911,250 A
• Filed: 01/31/1997
• Issued: 06/15/1999
• Est. Priority Date: 08/21/1996
• Status: Expired due to Fees

• Current Assignee: Dragerwerk AG
• Original Assignee: Dragerwerk AG
• Inventors: Baumgarten, Siegfried, Bruckner, Rolf, Harms, Heye, Turker, Ahmet
• Primary Examiner(s): JACYNA, J CASIMER
• Application Number:
  US08/791,639
• Time in Patent Office: 865 Days
• Field of Search: 141/18, 141/21, 141/94, 141/95, 141/198, 137/392
• US Class Current: 141/94
• CPC Class Codes: A61M 16/183 Filling systems
• CPC Class Codes: A61M 2205/3389 Continuous level detection A61M2205/3393 takes precedence
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: B67D 7/346 by reading a code
• CPC Class Codes: G01F 23/268 mounting arrangements of probes
• CPC Class Codes: Y10T 137/7306 Electrical characteristic sensing

Abstract

A filling adapter is provided for connecting a reservoir filled with a liquid with a metering device, which filling adapter has a liquid-specific connection piece for the reservoir. A code device is provided, detectable by the metering device, at least for the liquid contained in the reservoir. The code device is provided on the filling adapter in the connection area between the filling adapter and the metering device.

Claims

1. A liquid filling system, comprising:

a reservoir filled with a liquid;

a metering device;

a filling adapter for connecting said reservoir with said metering device, said filling adapter including a liquid-specific connection piece for connecting the filling adapter to a liquid specific connection on said reservoir and code means for supplying a code detectable by said metering device representing the liquid contained in said reservoir, said code means being provided on said filling adapter in a connection area between said filling adapter and said metering device.

2. A filling adapter in accordance with claim 1, further comprising:

code detection means for detecting said code, connected to a said measuring and monitoring device, said code detection means being arranged on said metering device, said measuring and monitoring device comparing said code detected with a code pattern present in a stored set and generating a control signal in the case of agreement.

3. A filling system in accordance with claim 1, wherein said code means comprises an opto-electronically detectable, coded strip.

4. A filling system in accordance with claim 1, wherein said code means includes a permanent memory (EEPROM).

5. A filling system in accordance with claim 1, further comprising:

one of a filling channel and a venting channel located in said connection area and provided with a pressure-limiting valve.

6. A filling system in accordance with claim 1, wherein a suction system is provided extending from said connection piece into said reservoir, said suction system is designed as a filling level indicator.

7. A filling system in accordance with claim 6, wherein said filling level indicator comprises a capacitive transducer with a suction tube and with an outer tube, said outer tube being coaxial to said suction tube and being fastened insulated from said suction tube.

8. A filling system in accordance with claim 1, wherein said filling adapter has a coupling piece, which can be inserted into an insertion opening of said metering device and is aligned standing essentially at right angles to said reservoir.

9. A filling system in accordance with claim 8, wherein said connection area between said filling adapter and said metering device is an overlapping area of said coupling piece and said insertion opening.

10. A filling system in accordance with claim 1, wherein;

said reservoir includes a star like coding piece, and said liquid specific connection piece defines a recess for receiving said coding piece.

11. A liquid anesthetic filling system comprising:

a reservoir holding an anesthetic liquid;

a metering device defining an insertion opening;

a filling adapter for connecting said reservoir with said metering device, said filling adapter including a liquid-specific connection piece for connecting said filling adapter to a liquid specific connection on said reservoir, said filling adapter including a coupling piece insertable into said insertion opening of said metering device, said metering device having a connection area overlapping said coupling piece when said coupling piece is inserted into said insertion opening;

code means on said coupling piece for indicating a code of the liquid in said reservoir;

code detection means on said connection area of said metering device and for detecting said code on said coupling piece;

measuring and monitoring means arranged with said metering device and connected to said code detection means, said measuring and monitoring means including a stored set of code patterns and comparing said code detected by said code detection means with said stored set of code patterns, said measuring and monitoring means generating a control signal as a result of said comparison.

12. A filling adapter in accordance with claim 11, wherein said code means comprises an opto-electronically detectable, coded strip.

13. A filling adapter in accordance with claim 11, wherein said code means is designed as a permanent memory (EEPROM).

14. A filling adapter in accordance with claim 11, further comprising:

one of a filling channel and a venting channel located in said connection area and provided with a pressure-limiting valve.

15. A filling adapter in accordance with claim 11, wherein a suction system is provided extending from said connection piece into said reservoir, said suction system is designed as a filling level indicator.

16. A filling adapter in accordance with claim 15, wherein said filling level indicator comprises a capacitive transducer with a suction tube and with an outer tube, said outer tube being coaxial to said suction tube and being fastened insulated from said suction tube.

17. A filling system in accordance with claim 11, wherein;

said metering device includes a metering pump for removing the liquid from said reservoir, said measuring and monitoring means adjusts said metering pump according to characteristics of the fluid as represented by said code detected by said detection means.

18. A filling system in accordance with claim 11, wherein;

said reservoir includes a star like coding piece, and said liquid specific connection piece defines a recess for receiving said coding piece.