Insulin delivery system
First Claim
Patent Images
1. A medication delivery system comprising:
- a portable housing;
a medication reservoir in association with said housing;
a repeating, valved medication pump in association with said housing and connected to said reservoir, said pump comprising;
a tube;
inlet and outlet valves in said tube, said valves allowing flow only from said reservoir to said delivery tube;
a tube support, said tube being engaged against said support between said valves;
a movable pumping blade engaging said tube opposite said support for alternately pressing and releasing said tube against said support; and
means for moving said blade, said blade having a rest position so that when said pump is inactive, said tube is closed to prevent said reservoir from draining;
a delivery tube extending from said pump so that operation of said pump draws medication from said reservoir and delivers it out of said delivery tube, said delivery tube extending from said housing for the delivery of medication to a patient; and
digital control means for said pump comprising means for producing pulses at a substantially constant pulse rate, a pulse counter connected to receive pulses from said means for producing pulses, said blade-moving means being connected to said pulse counter so that said moving means pulses for each pulse passed by said pulse counter, said pulse counter counting and passing a predetermined number of pulses from said means for producing pulses and thereafter passing no further pulses to said moving means until said pulse counter is reset.
13 Assignments
0 Petitions
Accused Products
Abstract
Insulin delivery system comprises insulin reservoir, pump and subcutaneous needle. Pump is electromechanically-driven at a preselectable fixed rate and can be additionally actuated to deliver a preprandial bolus of selected dosage.
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Citations
16 Claims
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1. A medication delivery system comprising:
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a portable housing; a medication reservoir in association with said housing; a repeating, valved medication pump in association with said housing and connected to said reservoir, said pump comprising; a tube; inlet and outlet valves in said tube, said valves allowing flow only from said reservoir to said delivery tube; a tube support, said tube being engaged against said support between said valves; a movable pumping blade engaging said tube opposite said support for alternately pressing and releasing said tube against said support; and means for moving said blade, said blade having a rest position so that when said pump is inactive, said tube is closed to prevent said reservoir from draining; a delivery tube extending from said pump so that operation of said pump draws medication from said reservoir and delivers it out of said delivery tube, said delivery tube extending from said housing for the delivery of medication to a patient; and digital control means for said pump comprising means for producing pulses at a substantially constant pulse rate, a pulse counter connected to receive pulses from said means for producing pulses, said blade-moving means being connected to said pulse counter so that said moving means pulses for each pulse passed by said pulse counter, said pulse counter counting and passing a predetermined number of pulses from said means for producing pulses and thereafter passing no further pulses to said moving means until said pulse counter is reset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A medication delivery system comprising:
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a portable housing; a medication reservoir in association with said housing; a repeating, valved medication pump in association with said housing and connected to said reservoir, said pump comprising; a tube; inlet and outlet valves in said tube, said valves allowing flow only from said reservoir to said delivery tube; a tube support, said tube being engaged against said support between said valves; a movable pumping blade engaging said tube opposite said support for alternately pressing and releasing said tube against said support; and means for moving said blade, said blade having a rest position so that when said pump is inactive, said tube is closed to prevent said reservoir from draining; a pulse counter connected to receive pulses from said means for producing pulses, said pulse counter being presettable to pass a predetermined number of pulses which are proportional to the number of units of medication, said blade-moving means being connected to said pulse counter so that said moving means pulses for each pulse passed by said pulse counter, said pulse counter counting and passing a predetermined number of pulses from said means for producing pulses and thereafter passing no further pulses to said moving means until said pulse counter is reset. - View Dependent Claims (13)
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14. A medication delivery system comprising:
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a portable housing; a medication reservoir in association with said housing; a repeating, valved medication pump in association with said housing and connected to said reservoir, said pump comprising; a tube; inlet and outlet valves in said tube, said valves allowing flow only from said reservoir to said delivery tube; a tube support, said tube being engaged against said support between said valves; a movable pumping blade engaging said tube opposite said support for alternately pressing and releasing said tube against said support; and means for moving said blade, said blade having a rest position so that when said pump is inactive, said tube is closed to prevent said reservoir from draining; a delivery tube extending from said pump so that operation of said pump draws medication from said reservoir and delivers it out of said delivery tube, said delivery tube extending from said housing for the delivery of medication to a patient; and digital control means for said pump said control means comprising; pulse producing means; a selectable pulse divider having an input from said means for producing pulses and an output to said blademoving means, said selectable divider dividing the pulse rate at said input to the output pulse rate by a selected ratio so that said pump can be controlled to provide predetermined discrete deliveries of medication. - View Dependent Claims (15, 16)
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Specification