Drug delivery system
First Claim
1. A method for the delivery of multiple units of a drug from sealed cartridges to a patient, the method comprising selectively delivering the drug from a plurality of individually sealed first cartridges using a motor to advance a plug within a cartridge to drive the drug from the cartridge, the first cartridges being positioned on a stationary housing, wherein the drug from the first cartridges flows through a manifold fluidly connected to flexible tubing, wherein the flexible tubing is fluidly connected to a delivery component that delivers the drug to the patient and wherein the drug flows from the first cartridges to the delivery component through a sealed fluid path.
2 Assignments
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Accused Products
Abstract
System for the delivery of drugs from sealed cartridges provide for versatile and convenient delivery of the drugs. The system can be designed to deliver drugs from a plurality of cartridges with delivery through a manifold that connects to the plurality of cartridges. In some embodiments, the system mediates the heating of the drug such that it can be delivered at a temperature more closely approximating body temperature. In some embodiments, the composition of one cartridge is used to adjust the pH of the composition of the resulting mixture to achieve a desirable blended drug. The systems and procedures are particularly advantageous for the delivery of dental anesthetics.
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Citations
31 Claims
- 1. A method for the delivery of multiple units of a drug from sealed cartridges to a patient, the method comprising selectively delivering the drug from a plurality of individually sealed first cartridges using a motor to advance a plug within a cartridge to drive the drug from the cartridge, the first cartridges being positioned on a stationary housing, wherein the drug from the first cartridges flows through a manifold fluidly connected to flexible tubing, wherein the flexible tubing is fluidly connected to a delivery component that delivers the drug to the patient and wherein the drug flows from the first cartridges to the delivery component through a sealed fluid path.
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10. A drug delivery system comprising:
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a housing comprising at least one motor operably connected to a plurality of pistons;
a cartridge holder comprising a plurality of positioning slots configured to hold a fluid cartridge in an alignment to be engaged by one of the pistons when the piston is translated;
a plurality of transfer tubes comprising a first end configured to engage and enter a sealed cartridge at a positioning slot, wherein at least one transfer tube comprises a displaceable cap covering the first end of the transfer tube;
a manifold comprising an output port and a plurality of channels wherein a channel is fluidly connected with a transfer tube and wherein the manifold has a configuration in which flows from the channels combine while having a fluid connection to the output port;
flexible tubing comprising a first end and a second end, wherein the first end is fluidly connected to the output port of the manifold; and
a patient delivery component comprising a fluid outlet, the patient delivery component being fluidly connected with the second end of the flexible tubing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A drug delivery system comprising:
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a housing comprising at least one motor operably connected to at least one piston;
a cartridge holder having at least one positioning slot configured to hold a cartridge;
at least one transfer tube configured to enter a sealed cartridge to establish a flow passage to an output port;
flexible tubing having a first end and a second end wherein the first end if fluidly connected to the output port;
a patient delivery component comprising a fluid outlet, the patient delivery component being fluidly connected with the second end of the flexible tubing; and
a heating element, wherein the heating element is configured to heat at least one component of the system. - View Dependent Claims (25, 26)
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- 27. A method for the delivery of a mixture of drugs to a patient, the method comprising delivering a mixture of different drugs from a manifold connected to a plurality of cartridges comprising at least a first cartridge and a second cartridge, which cartridges contain different drugs and are positioned on a stationary housing, using a motor to move a plug within the first cartridge to drive the drug from the first cartridge to the manifold wherein the manifold is fluidly connected to flexible tubing and wherein the flexible tubing is fluidly connected to a delivery component to deliver the mixture.
Specification