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 w
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.
대표청구항▼
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
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; andan 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. 2. The portable infusion pump system of claim 1, wherein the air-transmissible gasket is seated in an annular groove defined by the cap device. 3. The portable infusion pump system of claim 1, wherein the air-transmissible gasket comprises a hydrophobic material. 4. The portable infusion pump system of claim 1, further comprising a ring seal abutted with the air-transmissible gasket, wherein the ring seal comprises an elastomeric material. 5. The portable infusion pump system of claim 4, wherein the air-transmissible gasket comprises a first major surface, a second major surface, and an inner rim that defines the gasket aperture, and wherein the entire first major surface is positioned in abutment with the elastomeric material of the ring seal. 6. The portable infusion pump system of claim 5, wherein the ring seal comprises a generally L-shaped cross-section that defines an inner rim of the elastomeric member, the inner rim of the elastomeric member being seated within an annular grove defined by the cap device. 7. The portable infusion pump system of claim 6, wherein the inner rim of the ring seal defines a seal aperture, wherein both the gasket aperture of the gasket and the seal aperture of the ring seal are generally axially aligned the opening of the portable housing when the cap device engages with the portable housing. 8. The portable infusion pump system of claim 7, wherein the inner rim of the gasket provides an air path for passage of air into and out of the portable housing. 9. The portable infusion pump system of claim 1, further comprising 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. 10. The portable medical infusion pump system of claim 9, wherein the control circuitry is housed in a removable controller device that is removably attachable to the portable housing. 11. 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, 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; anda 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. 12. The portable infusion pump system of claim 11, wherein the gasket assembly is seated in an annular groove defined by the cap device. 13. The portable infusion pump system of claim 12, wherein the elastomeric member comprises a generally L-shaped cross-section that defines an inner rim of the elastomeric member, the inner rim of the elastomeric member being seated within the annular grove defined by the cap device. 14. The portable infusion pump system of claim 11, wherein the hydrophobic member comprises the first major surface, a second major surface, and an inner rim that defines an aperture through the hydrophobic member, the aperture of the hydrophobic member being generally aligned with an opening defined by the pump housing when the cap device engages with the portable housing. 15. The portable infusion pump system of claim 11, wherein the inner rim of the hydrophobic member provides an air path for the passage of air into and out of the pump housing. 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: 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; andmaintaining 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. 17. The method of claim 16, further comprising, in response to a change in ambient air pressure, equalizing an air pressure in the interior space defined by the pump housing with an air pressure external to the pump housing. 18. The method of claim 16, further comprising slidably receiving a medicine cartridge through the cavity opening of the pump housing and into the interior space defined by the pump housing. 19. The method of claim 16, wherein the cap device comprises a ring seal abutted with the air-transmissible gasket, wherein the ring seal comprises an elastomeric material. 20. The method of claim 19, wherein the air-transmissible gasket comprises a first major surface, a second major surface, and an inner rim that defines a gasket aperture, wherein the gasket aperture is generally aligned with the cavity opening when the cap device attaches with the portable housing, and wherein the entire first major surface is positioned in abutment with the elastomeric material of the ring seal.
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