Infusion Pump System and Method
First Claim
Patent Images
1. A portable infusion pump system, comprising:
- a pump device including a pump housing that defines a space to receive a medicine, a drive system positioned in the pump housing to dispense the medicine from the pump device when the medicine is received in the space of the pump housing, and a structure positioned in the pump housing that defines an open airflow passageway so dimensioned to inhibit ingress of liquid to an interior of the pump housing and provide air pressure equilibrium between an exterior of the pump housing and the interior of the pump housing; and
a controller device removably attachable to the pump housing so as to electrically connect with the pump device, wherein the controller device houses control circuitry configured to communicate with the drive system positioned in the pump housing to control dispensation of the medicine from the pump device.
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Abstract
Some embodiments of an infusion pump system may be configured to provide a desired level of resistance to liquid ingress to the pump casing while contemporaneously providing air transmissibility for equalization of air pressure differentials between the interior and exterior of the pump casing. Further, some embodiments can detect when moisture inside a casing of the infusion pump system is greater than or equal to a threshold level and can initiate one or more patient safety countermeasures.
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Citations
21 Claims
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1. A portable infusion pump system, comprising:
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a pump device including a pump housing that defines a space to receive a medicine, a drive system positioned in the pump housing to dispense the medicine from the pump device when the medicine is received in the space of the pump housing, and a structure positioned in the pump housing that defines an open airflow passageway so dimensioned to inhibit ingress of liquid to an interior of the pump housing and provide air pressure equilibrium between an exterior of the pump housing and the interior of the pump housing; and a controller device removably attachable to the pump housing so as to electrically connect with the pump device, wherein the controller device houses control circuitry configured to communicate with the drive system positioned in the pump housing to control dispensation of the medicine from the pump device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical infusion pump system, comprising:
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a portable housing defining a space to receive a medicine; a pump drive system to dispense medicine from the portable housing when the medicine is received in the space; control circuitry that electrically communicates with the pump drive system to control dispensation of the medicine from the portable housing when the medicine is received in the space; and a liquid ingress resistance structure positioned in the portable housing and exposed to both an exterior of the portable housing and an interior of the portable housing, the liquid ingress resistance structure defining a predefined airflow passageway that provides air pressure equilibrium between the exterior of the portable housing and the interior of the portable housing and that inhibits ingress of water to the interior of the portable housing when the portable housing is submerged in water for a period of time. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of operating a portable infusion pump system, comprising:
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dispensing a medicine from a reservoir positioned in a pump housing of a portable infusion pump system; and providing air pressure equilibrium between an exterior of a pump housing of a portable infusion pump system and an interior of the pump housing of the portable infusion pump system via an airflow passageway defined by a structure positioned in the pump housing and exposed to both the exterior of the pump housing and the interior of the pump housing, wherein the airflow passageway of the structure positioned in the pump housing is configured to inhibit ingress of water to the interior of the pump housing when the pump housing is submerged in water for a period of time. - View Dependent Claims (20, 21)
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Specification