Method and apparatus for medication dispensing
First Claim
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1. A device for automatic mixing and dispensing of preselected quantities of liquids in an aseptic environment, comprising:
- a source of said liquids,a plurality of selection means for inputting said preselections,a plurality of cylinders, each containing a piston which moves longitudinally within said cylinder, and each of said cylinders corresponding to a particular one of said selection means,a plurality of syringes, each containing a plunger, and each of said syringes corresponding to a particular one of said cylinders,a plurality of adjustable connectors, each of said connectors corresponding to a particular one of said cylinders and connecting said corresponding syringe plunger to said corresponding piston, so that longitudinal movement by said piston within said cylinder causes longitudinal movement of said plunger within said syringe,a manifold for directing the output of each of said syringes into a common output,supply means for supplying each of said syringes with one of said liquids from said source,a plurality of valve means, each of said valve means corresponding to one of said cylinders and connected thereto for introducing and exhausting pressurized fluid from external source to said cylinder so as to cause said piston and said corresponding plunger to be longitudinally moved,control means interconnecting said valve means and said selection means for sequentially and repetitively activating each of said valve means for a determined time period a number of times correlated to said preselection inputted into said corresponding selection means,an enclosure to contain said cylinders, syringes, manifold, connecting, supply means, valve means, and control means, andfilter and blower means whereby ambient air is filtered to remove infectious bodies and drawn into said enclosure thereby providing a positive pressure of aseptic air.
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Abstract
A method and device is disclosed for aseptically and automatically diluting and dispensing liquids such as medication. The quantities to be delivered are selected, and an electronic circuit translates the selections into sequential and repetitive pumping by syringes comprising part of the device. The syringes are powered by pressurized air, and the entire device is enclosed and supplied with filtered air at a positive pressure to produce aseptic conditions.
87 Citations
9 Claims
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1. A device for automatic mixing and dispensing of preselected quantities of liquids in an aseptic environment, comprising:
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a source of said liquids, a plurality of selection means for inputting said preselections, a plurality of cylinders, each containing a piston which moves longitudinally within said cylinder, and each of said cylinders corresponding to a particular one of said selection means, a plurality of syringes, each containing a plunger, and each of said syringes corresponding to a particular one of said cylinders, a plurality of adjustable connectors, each of said connectors corresponding to a particular one of said cylinders and connecting said corresponding syringe plunger to said corresponding piston, so that longitudinal movement by said piston within said cylinder causes longitudinal movement of said plunger within said syringe, a manifold for directing the output of each of said syringes into a common output, supply means for supplying each of said syringes with one of said liquids from said source, a plurality of valve means, each of said valve means corresponding to one of said cylinders and connected thereto for introducing and exhausting pressurized fluid from external source to said cylinder so as to cause said piston and said corresponding plunger to be longitudinally moved, control means interconnecting said valve means and said selection means for sequentially and repetitively activating each of said valve means for a determined time period a number of times correlated to said preselection inputted into said corresponding selection means, an enclosure to contain said cylinders, syringes, manifold, connecting, supply means, valve means, and control means, and filter and blower means whereby ambient air is filtered to remove infectious bodies and drawn into said enclosure thereby providing a positive pressure of aseptic air. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for aseptically and automatically mixing and dispensing preselected quantities of liquids comprising the steps of:
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providing a source of said liquids, providing a plurality of syringes, at least one of said syringes corresponding to and in communication with each of said liquids, providing a plurality of selection means for inputting said preselection, each of said selection means corresponding to a particular one of said syringes, providing a manifold to direct the output of each of said syringes to a common output, providing a control means interconnecting said syringes and said selection means for sequentially pumping each of said syringes to deliver said preselected quantities, and providing an enclosure to contain said syringes and control means equipped with a filter and blower means for filtering and introducing ambient air into said enclosure whereby a positive pressure of aseptic air is maintained within said enclosure. - View Dependent Claims (9)
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Specification