Infusion systems with patient-controlled dosage features
First Claim
1. A drug delivery system for providing patient control of drug delivery to the patient'"'"'s body comprising:
- a main pump having a reservoir for containing a supply of drug, wherein the main pump is elected from the group consisting of a fixed-rate pump and a programmable pump;
a first flow path for delivering a fixed flow of drug from the reservoir to the body by operation of the main pump;
a second flow path in fluid communication with the reservoir and the first flow path, the second flow path including a patient-controlled pump therein for permitting a patient to supplement the fixed flow of drug with additional drug dosage, wherein the additional drug dosage is provided from the reservoir of the main pump.
1 Assignment
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Accused Products
Abstract
An infusion system delivers drug to the patient at a fixed rate while permitting the patient to introduce a controlled bolus dosage when needed. A pump having a bulkhead that is provided with first and second flow paths from the pump reservoir to a single outlet port. The first flow path communicates with a first flow regulator which restricts flow in the first flow path to the desired fixed rate of delivery. The second flow path communicates with a patient-operated pump incorporated into the pump housing. The patient-operated pump may be in the form of a deformable reservoir that accumulates a drug bolus which may be expelled when the reservoir is compressed by the patient'"'"'s fingers. A second flow regulator may be incorporated in the drug flow path upstream of the patient-operated pumping device to restrict the dosage that may accumulate therein. Additionally, a fluid control assembly incorporating a patient-controlled pump may be used with single or dual port pumps.
106 Citations
20 Claims
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1. A drug delivery system for providing patient control of drug delivery to the patient'"'"'s body comprising:
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a main pump having a reservoir for containing a supply of drug, wherein the main pump is elected from the group consisting of a fixed-rate pump and a programmable pump;
a first flow path for delivering a fixed flow of drug from the reservoir to the body by operation of the main pump;
a second flow path in fluid communication with the reservoir and the first flow path, the second flow path including a patient-controlled pump therein for permitting a patient to supplement the fixed flow of drug with additional drug dosage, wherein the additional drug dosage is provided from the reservoir of the main pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
a bulkhead on the pump having an outlet port;
a catheter in fluid communication with the outlet port;
a fluid control assembly in fluid communication with the catheter and including a first fluid control path and a second fluid control path defined therein;
wherein the first flow path is defined by the pump bulkhead, the catheter and the first fluid control path and wherein the second flow path is provided by the second fluid control path.
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10. A fluid assembly for use within an implantable pump for permitting patient-control of drug delivery comprising:
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a body defining a first fluid control path and a second fluid control path, wherein the first control path delivers drug from the implantable pump, wherein the implantable pump is selected from the group consisting of a fixed-rate pump and a programmable pump;
a first flow regulator in the first fluid control path for limiting flow therein to a substantially constant rate;
a patient-controlled pump in the second fluid control path for permitting a patient to discharge a bolus of drug into the second fluid control path;
a second flow regulator in the second fluid control path for limiting the recharge rate of the patient-controlled pump. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A pump for providing patient control of drug delivery to the patient'"'"'s body comprising:
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a reservoir for containing a supply of drug;
a first flow path for delivering a substantially fixed flow of drug from the reservoir to the body by operation of the pump, wherein the pump is selected from the group consisting of a fixed-rate pump and a programmable pump; and
a patient-controlled pump in fluid communication with the reservoir and the first flow path for delivering a patient-controlled dosage to supplement the drug flow in the first flow path wherein the patient-controlled dosage is provided from the reservoir of the pump. - View Dependent Claims (17, 18, 19, 20)
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Specification