Regulation of drug delivery through flow diversion
First Claim
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1. A method for delivering a desired amount of a drug to a treatment site of a subject, the method comprising:
- causing a quantity of drug to exit from a drug reservoir of a drug delivery device in a direction toward a treatment site; and
diverting a portion of the quantity of drug exiting the drug delivery device away from the treatment site such that said diverted portion does not reach the treatment site;
wherein said diverting results in delivery of a desired amount of drug to the treatment site.
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Abstract
The present invention features methods and devices for modulating the rate of delivery of a drug formulation from a drug delivery device by diverting drug away from a drug delivery pathway. In one embodiment, a flow regulator is positioned relative to a drug delivery pathway of a drug delivery system so that adjustment of the flow regulator can provide for diversion of drug away from the drug delivery pathway. Diverted drug can be either delivered into the systemic circulation of the subject, or can be captured in a waste reservoir.
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Citations
48 Claims
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1. A method for delivering a desired amount of a drug to a treatment site of a subject, the method comprising:
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causing a quantity of drug to exit from a drug reservoir of a drug delivery device in a direction toward a treatment site; and
diverting a portion of the quantity of drug exiting the drug delivery device away from the treatment site such that said diverted portion does not reach the treatment site;
wherein said diverting results in delivery of a desired amount of drug to the treatment site. - View Dependent Claims (2, 3, 4, 5, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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6. A flow regulator comprising:
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a delivery conduit comprising a proximal delivery inlet, a distal delivery outlet, and a delivery lumen extending between the proximal delivery inlet and the distal delivery outlet, the delivery conduit lumen defining a delivery pathway; and
a diversion element positioned so as to facilitate diversion of flow of drug in a direction away from the delivery pathway. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification