Device for dispensing substances

• US 20050197622A1
• Filed: 11/23/2004
• Published: 09/08/2005
• Est. Priority Date: 03/02/2004
• Status: Active Grant

• Current Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Original Assignee: Dragerwerk AG
• Inventors: Blumenthal, Tilmann von, Koch, Jochim, Kullik, Gotz
• Granted Patent: US 7,833,192 B2
• Time in Patent Office: Days
• US Class Current: 604/82
• CPC Class Codes: A61J 3/002 Compounding apparatus specially for enteral or parenteral nutritive solutions bottling liquids B67C
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10
• CPC Class Codes: A61M 5/141 with capillaries for restricting fluid flow
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: B01F 33/84 Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
• CPC Class Codes: B01F 35/8311 with means for controlling the motor driving the pumps or the other dispensing mechanisms

Abstract

A drug dispensing system is provided that may be used universally and in which medical substances can be mixed with a carrier solution (13) in a simple manner. The device and system have a dispensing module (6) for medical substances and a hydrophilic nonwoven (14) with a carrier solution (13). The emission area of substance discharge openings (21, 22, 23, 24) of the dispensing module (6) are directed toward the nonwoven (14).

Claims

1. A drug dispensing system, comprising:

a dispensing module for medical substances, the dispensing module having a discharge opening;

a hydrophilic nonwoven with a carrier solution, wherein an area of emission of the substance discharge opening of said dispensing module is directed toward the nonwoven.

2. A drug dispensing system in accordance with claim 1, wherein said dispensing module comprises particle dispensing means.

3. A drug dispensing system in accordance with claim 1, wherein said dispensing module comprises drop dispenser means.

4. A drug dispensing system in accordance with claim 1, wherein dispensing module comprises a parallel dispenser with a plurality of discharge openings an area of emission directed toward the nonwoven for dispensing different medical substances.

5. A drug dispensing system in accordance with claim 4, wherein said parallel dispenser is designed for the simultaneous and independent dispensing of drops of different substances and particles of different substances.

6. A drug dispensing system in accordance with claim 1, wherein said carrier solution is one of a sodium chloride solution, a glucose solution, a Ringer'"'"'s solution, a fat emulsion or a nutrient solution.

7. A drug dispensing system in accordance with claim 1, said nonwoven comprises glass fibers, polyethylene with hydrophilic plasma coating, cellulose, polyolefin or polyester.

8. A drug dispensing system in accordance with claim 1, further comprising a delivery means pumping the carrier solution into an infusion line, said delivery means being provided on the outflow side of the nonwoven.

9. A process for dispensing liquid or particulate substances with a dispensing module, the process comprising the steps of:

delivering a carrier solution, for taking up the substances, through a hydrophilic nonwoven; and

directing the emission area of substance discharge openings of the dispensing module toward the nonwoven.

10. A process in accordance with claim 9, wherein a delivery means for delivering the carrier solution is arranged downstream of the nonwoven.

11. A process in accordance with claim 9, wherein a pressure difference between the barometric pressure in the emission area of the substance discharge openings and the hydrostatic pressure in the nonwoven is set such that such pressure is lower than the maximum capillary pressure, the maximum capillary pressure being obtained from the pairing of the nonwoven and the carrier solution.

12. A drug dispensing system, comprising:

a dispensing module for medical substances, the dispensing module having a plurality of discharge openings;

a hydrophilic nonwoven;

a carrier solution container with carrier solution in said container and taken up by said nonwoven, said substance discharge openings of said dispensing module each having an area of emission directed toward said nonwoven in a region in which said carrier solution is take up.

13. A drug dispensing system in accordance with claim 12, wherein said dispensing module comprises particle dispensing means for dispensing substance particles at least at one of said substance discharge openings.

14. A drug dispensing system in accordance with claim 12, wherein said dispensing module comprises drop dispenser means for dispensing liquid substance at least at one of said substance discharge openings.

15. A drug dispensing system in accordance with claim 12, wherein dispensing module comprises a parallel dispenser means corresponding with said plurality of discharge openings for dispensing different medical substances.

16. A drug dispensing system in accordance with claim 15, wherein said parallel dispenser means is for the simultaneous and independent dispensing of drops of different substances and/or particles of different substances.

17. A drug dispensing system in accordance with claim 12, wherein said carrier solution is one of a sodium chloride solution, a glucose solution, a Ringer'"'"'s solution, a fat emulsion or a nutrient solution.

18. A drug dispensing system in accordance with claim 12, said nonwoven comprises glass fibers, polyethylene with hydrophilic plasma coating, cellulose, polyolefin or polyester.

19. A drug dispensing system in accordance with claim 12, further comprising a pump pumping the carrier solution into an infusion line, said pump being provided on the outflow side of the nonwoven.