Medication infusion system with disposable pump/battery cassette
First Claim
Patent Images
1. A medication infusion system for infusion system for infusing fluid into a living body, comprising:
- a disposable fluid pump having an inlet to which aid fluid is supplied for ma source, and an outlet form which said fluid is pumped in precisely metered amounts at preselected times;
a prime mover for driving said disposable fluid pump;
means for coupling an output of said prime mover to drive said fluid pump;
an electronic controller for controlling the operation of said prime mover to cause said disposable fluid pump to pump said precisely metered amounts at said preselected times;
main pump housing means for containing said prime mover and said electronic controller in an assembly defining a main pump unit;
a battery for powering at least one of said prime mover and said electronic controller, said battery being attached to and disposable with said disposable fluid pump;
cassette housing means for containing said disposable fluid pump and said battery in an integral package defining a disposable cassette, said disposable cassette for removable attachment to said main pump unit;
means interacting between said cassette and said main pump housing for preventing reuse of said disposable cassette after initial detachment form said main pump unit; and
means for connecting said battery to provide electrical power to at least one component contained in said main pump unit.
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Abstract
A disposable cassette for use with a main infusion pump unit is disclosed which contains both a disposable pump and a battery, thereby requiring the simultaneous replacement of both the pump and the battery. The controller contained in the main pump unit includes a timer which prevents the cassette from being used for longer than a predetermined time, which is substantially less than the life of the battery. An interlock prevents a cassette from being reinstalled following a single use.
159 Citations
19 Claims
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1. A medication infusion system for infusion system for infusing fluid into a living body, comprising:
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a disposable fluid pump having an inlet to which aid fluid is supplied for ma source, and an outlet form which said fluid is pumped in precisely metered amounts at preselected times; a prime mover for driving said disposable fluid pump; means for coupling an output of said prime mover to drive said fluid pump; an electronic controller for controlling the operation of said prime mover to cause said disposable fluid pump to pump said precisely metered amounts at said preselected times; main pump housing means for containing said prime mover and said electronic controller in an assembly defining a main pump unit; a battery for powering at least one of said prime mover and said electronic controller, said battery being attached to and disposable with said disposable fluid pump; cassette housing means for containing said disposable fluid pump and said battery in an integral package defining a disposable cassette, said disposable cassette for removable attachment to said main pump unit; means interacting between said cassette and said main pump housing for preventing reuse of said disposable cassette after initial detachment form said main pump unit; and means for connecting said battery to provide electrical power to at least one component contained in said main pump unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A medication infusion system, comprising:
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a fluid pump having an input to which said fluid is supplied from a source, and an outlet from which said fluid is pumped; a battery for providing electrical power for said medication infusion system; means for connecting said battery to provide electrical power to at least one component contained in said main pump unit; cassette housing means for containing said fluid pump and said battery in an integral package defining a disposable cassette, said disposable cassette for removable attachment to a main pump unit, said disposable cassette being disposable after one use; a prime mover for providing a mechanical output used to drive said fluid pump; means for coupling an output of said prime mover to drive said fluid pump; an electronic controller for driving said prime mover; main pump housing means for containing said prime mover and said electronic controller in an assembly defining said main pump unit; and means interacting between said cassette and said main pump housing, for preventing reuse of said disposable cassette after initial detachment from said main pump unit. - View Dependent Claims (17)
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18. A medication infusion system, comprising:
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a prime mover for providing a mechanical output; an electronic controller for driving said prime mover; main pump housing means for containing said prime mover and said electronic controller in an assembly defining a main pump unit; a disposable fluid pump having an input to which said fluid is supplied from a source, and an outlet from which said fluid is pumped in precisely metered amounts at preselected times; means for coupling said mechanical output of said prime mover to drive said disposable fluid pump; a disposable battery for providing electrical power for said prime mover and said controller; means for connecting said battery to provide electrical power to at least one component contained in said main pump unit; cassette housing means for containing said disposable fluid pump and said disposable battery in an integral package defining a disposable cassette, said disposable cassette for removable attachment to said main pump unit, said disposable cassette being disposable after one use; and means interacting between said cassette and said main pump housing, for preventing reuse of said disposable cassette after initial detachment from said main pump unit.
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19. A method of providing a flow of medical fluid to a living body, comprising:
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providing a disposable fluid pump having an inlet to which said fluid is supplied from a source, and an outlet from which said fluid is pumped in precisely metered amounts at preselected times; driving said disposable fluid pump with a prime mover, an output of said prime mover being coupled to drive said disposable fluid pump; controlling the operation of said prime mover with an electronic controller to cause said disposable fluid pump to pump said precisely metered amounts at said preselected times; installing said prime mover and said electronic controller in an assembly defining a main pump unit; powering at least one of said prime mover and said electronic controller with a battery, said battery being attached to and disposable with said disposable fluid pump, and connected to provide electrical power to at least one component contained in said main pump unit; installing said disposable fluid pump and said battery in an integral package defining a disposable cassette, said disposable cassette for removable attachment to said main pump unit; and preventing reuse of said disposable cassette after initial detachment from said main pump unit.
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Specification