System and method for drug preparation and delivery
A disposable cassette for mixing a drug in a vial includes a liquid inlet for connection to a liquid supply, a first vial spike, a second vial spike, a chamber and a valve mechanism. The chamber, the first and second vial spikes, and the liquid inlet are in fluid communication with each other. The valve mechanism may be actuated to control flow between the chamber, the vial receptacles and the liquid inlet.
1. A drug delivery system comprising:
a plurality of drug delivery channels;
a plurality of drug vial spikes, each drug vial spike in fluid connection with a respective one of said drug delivery channels;
a valve mechanism associated with each drug delivery channel, the valve mechanism arranged to permit or prevent fluid flow through one or more of said drug delivery channels;
a patient delivery channel, in selective fluid connection with one or more of said drug delivery channels, the patient delivery channel arranged for connection to a subject;
a bubble detector for detecting air bubbles in a flowpath comprising one or more of the plurality of drug delivery channels or the patient delivery channel, and
a control unit configured to control the valve mechanism for selectable fluid flow through one or more of the plurality of drug delivery channels, and for controlling said fluid flow in response to detection of air bubbles by the bubble detector.
2. The drug delivery system of claim 1 wherein the drug vial spikes, the drug delivery channels and the patient delivery channel are configured as a single-use or disposable component of the system.
3. The drug delivery system of claim 2 wherein the single-use or disposable component comprises a rigid body defining at least a portion of the plurality of drug delivery channels, or a portion of the patient delivery channel.
4. The drug delivery system of claim 3 wherein the disposable component comprises a manifold configured to connect the plurality of drug delivery channels to the patient delivery channel.
5. The drug delivery system of claim 1 further comprising a pressure transducer arranged to detect pressurization within one or more drug vials attached to one or more of the plurality of drug vial spikes.
6. The drug delivery system of claim 5 further comprising a vent in selective fluid connection to the plurality of drug vial spikes, and configured to permit venting of the one or more drug vials.
7. The drug delivery system of claim 6 wherein the vent is configured to allow the drug vial to be brought to ambient pressure.
8. The drug delivery system of claim 1 wherein the control unit is configured to control a delivery of a volume or composition of one or more drugs within one or more drug vials attached to one or more of the plurality of drug vial spikes to the subject.
9. The drug delivery system of claim 8 wherein the control unit is configured to control said delivery by controlling air pressure provided to one or more pneumatic control elements of the valve mechanism.
10. The drug delivery system of claim 9 , wherein the control unit comprises a user interface.
11. The drug delivery system of claim 10 , wherein the user interface comprises a keypad for entry of one or more drug delivery parameters to the control unit.
12. The drug delivery system of claim 11 wherein the control unit comprises a reader for receiving identifying information related to the drug delivery system or the subject.
13. The drug delivery system of claim 10 , wherein the control unit is configured to receive information regarding a desired drug delivery cycle.
14. The drug delivery system of claim 3 , wherein the desired drug delivery cycle includes the administration of two or more drugs.
15. The drug delivery system of claim 13 , wherein the control unit is configured to prevent the delivery of an unsafe drug dosage.
16. The drug delivery system of claim 15 , wherein the control unit is connected to a wide area network.