Controlled release osmotic infusion system
First Claim
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1. A portable infusion device assembly comprising:
- a. a first pouch containing infusate and fitted with a dispensing nozzle;
b. a second pouch in pressure-transmitting relationship to the aforesaid first pouch;
c. an integral power source comprising;
a pressure-generating means for generating pressure in aforesaid second pouch, comprised of an osmagent and a liquid permeant, wherein a driving fluid is produced when permeant contacts osmagent;
an activating means for initiating the action of the aforesaid power generating means;
a rate-controlling means for regulating the volume change of the aforesaid first pouch, comprising a semipermeable membrane;
d. a fluid-transport means in liquid transmitting relationship between the aforesaid power chamber and the aforesaid delivery chamber, and,e. a connecting means for attaching the aforesaid dispensing nozzle to the object of treatment; and
,f. a housing containing the aforesaid first and second pouches and in restraining relationship to the aforesaid first and second pouch.
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Abstract
A portable osmotic infusion device assembly, having two pouches in pressure transmitting relationship, the first containing infusate and the second, a driving fluid. The driving fluid is created and pressurized by activation of an osmotic pump, and the rate of infusion is controlled by a rate-controlling means. The infusate pouch is manufactured separately and can be stored apart from the rest of the system.
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Citations
24 Claims
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1. A portable infusion device assembly comprising:
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a. a first pouch containing infusate and fitted with a dispensing nozzle; b. a second pouch in pressure-transmitting relationship to the aforesaid first pouch; c. an integral power source comprising; a pressure-generating means for generating pressure in aforesaid second pouch, comprised of an osmagent and a liquid permeant, wherein a driving fluid is produced when permeant contacts osmagent; an activating means for initiating the action of the aforesaid power generating means; a rate-controlling means for regulating the volume change of the aforesaid first pouch, comprising a semipermeable membrane; d. a fluid-transport means in liquid transmitting relationship between the aforesaid power chamber and the aforesaid delivery chamber, and, e. a connecting means for attaching the aforesaid dispensing nozzle to the object of treatment; and
,f. a housing containing the aforesaid first and second pouches and in restraining relationship to the aforesaid first and second pouch. - View Dependent Claims (3, 7, 9, 11, 13, 14, 17, 19, 21, 23)
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2. A portable infusion device assembly comprising:
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a. a first pouch containing infusate and fitted with a dispensing nozzle; b. a second pouch in pressure-transmitting relationship to the aforesaid first pouch; c. an integral power source comprising; a pressure-generating means for generating pressure in aforesaid second pouch, comprised of an osmagent and a liquid permeant, wherein a driving fluid is produced when permeant contacts osmagent; an activating means for initiating the action of the aforesaid power generating means; a rate controlling means for regulating the volume change of the aforesaid first pouch, comprising a semipermeable membrane; d. a fluid-transport means in liquid transmitting relationship between the aforesaid power chamber and the aforesaid delivery chamber, and, e. a connecting means for attaching the aforesaid dispensing nozzle to the object of treatment; and
,f. a housing containing the aforesaid first pouch, second pouch, and power source, and in restraining relationship with the aforesaid first and second pouches. - View Dependent Claims (4, 8, 10, 12, 15, 16, 18, 20, 22, 24)
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5. A method for infusing a patient, comprising connection of said patient to a portable infusion device, said device comprising:
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a. a first pouch containing infusate and a dispensing nozzle; b. a second pouch in pressure-transmitting relationship to the aforesaid first pouch; c. an integral power source comprising; a pressure-generating means for generating pressure in aforesaid second pouch, comprised of an osmagent and a liquid permeant, wherein a driving fluid is produced when permeant contacts osmagent; an activating means for initiating the action of the aforesaid power generating means; a rate-controlling means for regulating the volume change of the aforesaid first pouch, comprising a semipermeable membrane; d. a connecting means for attaching the aforesaid dispensing nozzle to the object of treatment; e. a housing containing the aforesaid first and second pouches and in restraining relationship to the aforesaid first and second pouches; and
,f. activating said device.
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6. A method for infusing a patient, comprising connection of said patient to a portable infusion device, said device comprising:
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a. a first pouch containing infusate and a dispensing nozzle; b. a second pouch in pressure-transmitting relationship to the aforesaid first pouch; c. an integral power source comprising; a pressure-generating means for generating pressure in aforesaid second pouch, comprised of an osmagent and a liquid permeant; wherein a driving fluid is produced when permeant contacts osmagent; an activating means for initiating the action of the aforesaid power generating means; a rate controlling means for regulating the volume change of the aforesaid first pouch, comprising a semipermeable membrane; d. a connecting means for attaching the aforesaid dispensing nozzle to the object of treatment; e. a housing containing the aforesaid first pouch, second pouch, and power source, and in restraining relationship with the aforesaid first and second pouches; and
,f. activating said device.
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Specification