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Apparatus and methods for administering bioactive compositions

  • US 7,442,180 B2
  • Filed: 06/10/2003
  • Issued: 10/28/2008
  • Est. Priority Date: 06/10/2003
  • Status: Expired due to Fees
First Claim
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1. An apparatus for administering a bioactive composition to a subject, comprising:

  • a plurality of inkjet dispensers, each inkjet dispenser being operable to dispense discrete quantities of droplets of the bioactive composition;

    a mixing unit having a plurality of mixing chambers, each mixing chamber being configured to receive the bioactive composition dispensed from a respective inkjet dispenser, each mixing chamber having an inlet for receiving an infusion liquid to be mixed with the bioactive composition and an outlet for discharging a mixture of the infusion liquid and the bioactive composition; and

    a plurality of fluid reservoirs for containing the bioactive composition, each fluid reservoir being fluidly connected to a respective inkjet dispenser;

    wherein each inkjet dispenser comprises an ejection orifice, the ejection orifices being formed in a die interposed between the fluid reservoirs and the mixing chambers, each ejection orifice being fluidly connected to a respective fluid reservoir and operable to eject a controlled amount of the bioactive composition into a respective mixing chamber.

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