Medical drug delivery systems and methods for delivery of multiple fluids and concentrations
First Claim
1. A drug delivery system for delivering a drug into a patient, the apparatus comprising:
- an implantable drug pump having at least one drug reservoir filled with a drug and pumping means, the drug pump further configured to be operated jointly with a catheter assembly in order to provide controlled delivery of said drug to said catheter assembly;
a catheter assembly configured for operating in conjunction with the implantable drug pump and for providing circular flow of a therapeutic fluid therethrough, the therapeutic fluid comprising a first volume of a fluid and a drug contained therein;
a flow controller under control of the implantable drug pump for controlling a flow rate of the therapeutic fluid within the catheter assembly; and
a distal catheter member configured for allowing the therapeutic fluid to do one of the following a) circulate, and b) be dispensed to a predetermined location in the patient.
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Accused Products
Abstract
A drug delivery system provides for controlled mixing of drugs, using flow controllers to guide drugs into single or multiple catheters, enabling a single lumen catheter to dispense multiple drugs, diluting a concentrated drug to provide varying drug concentration, using a buffer fluid to deliver precise amounts of drug or to separate drugs within a catheter, and using a patient'"'"'s bodily fluid as a diluent or buffer fluid. A drug testing/filler apparatus may be used prior to system use to facilitate filling of multiple reservoirs and may also be used for refilling. The system can provide bolus or continuous delivery and enable the measured delivery of drug to selected distal locations at independent rates. New types of catheter systems, catheter hub assemblies, and uses therefore are also described. New methods for promotion of healthy pregnancy and treatment of a developing fetus are disclosed.
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Citations
20 Claims
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1. A drug delivery system for delivering a drug into a patient, the apparatus comprising:
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an implantable drug pump having at least one drug reservoir filled with a drug and pumping means, the drug pump further configured to be operated jointly with a catheter assembly in order to provide controlled delivery of said drug to said catheter assembly; a catheter assembly configured for operating in conjunction with the implantable drug pump and for providing circular flow of a therapeutic fluid therethrough, the therapeutic fluid comprising a first volume of a fluid and a drug contained therein; a flow controller under control of the implantable drug pump for controlling a flow rate of the therapeutic fluid within the catheter assembly; and a distal catheter member configured for allowing the therapeutic fluid to do one of the following a) circulate, and b) be dispensed to a predetermined location in the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification