Infusion pump system and method
First Claim
Patent Images
1. A portable infusion pump system, comprising:
- a portable housing defining an opening to receive a medicine;
a pump drive system arranged in the portable housing and configured to dispense medicine from the portable housing when the medicine is received in the space;
a cap device configured to engage with the portable housing to enclose the medicine in the portable housing when the medicine is received in the space; and
an air-transmissible gasket positioned at an interface between the portable housing and the cap device and comprising a gasket aperture generally aligned with the opening when the cap device engages with the portable housing, wherein the gasket is air-transmissible so that air is passable through the interface between the portable housing and the cap device while the gasket resists migration of liquids into the portable housing.
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Abstract
Some embodiments of an infusion pump system may be configured to provide air pressure equilibrium between the ambient air pressure external to the infusion pump system and the internal air pressure inside the infusion pump system. In particular embodiments, the infusion pump system can be equipped with an air-transmissible, liquid-tight seal along an interface between a pump body and a cap device configured to attach to the pump body.
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Citations
20 Claims
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1. A portable infusion pump system, comprising:
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a portable housing defining an opening to receive a medicine; a pump drive system arranged in the portable housing and configured to dispense medicine from the portable housing when the medicine is received in the space; a cap device configured to engage with the portable housing to enclose the medicine in the portable housing when the medicine is received in the space; and an air-transmissible gasket positioned at an interface between the portable housing and the cap device and comprising a gasket aperture generally aligned with the opening when the cap device engages with the portable housing, wherein the gasket is air-transmissible so that air is passable through the interface between the portable housing and the cap device while the gasket resists migration of liquids into the portable housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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, a cap device configured to directly attach with the pump housing to enclose the medicine in the pump housing when the medicine is received in the space of the pump housing, and a gasket assembly positioned at an interface between the pump housing and the cap device when the cap device engages with the portable housing, wherein the gasket assembly is configured to permit the passage of air into and out of the pump housing while resisting the passage of liquids into the pump housing, the gasket assembly comprising a hydrophobic member and an elastomeric member, wherein a first major surface of the hydrophobic member is entirely abutted by the elastomeric member; 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 (12, 13, 14, 15)
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16. A method of equalizing an air pressure in a space defined by a pump housing of an infusion pump system with an ambient air pressure, the method comprising:
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receiving a cap device into attachment with an infusion pump housing so that an air-transmissible gasket is positioned proximate to a cavity opening defined by the infusion pump housing; and maintaining the air-transmissible gasket in a position at an interface between the cap device and a rim of cavity opening of the pump housing, wherein the air-transmissible gasket is configured to permit passage of air into and out of an interior space defined by the pump housing while resisting migration of liquid into the interior space defined by the pump housing. - View Dependent Claims (17, 18, 19, 20)
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Specification