Operating an infusion pump system
First Claim
Patent Images
1. A method of operating an infusion pump device, comprising:
- engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined in an interior of the pump housing, the medicine cartridge comprising a plunger movable relative to an outer wall structure of the medicine cartridge and positioned entirely within the outer wall structure; and
urging the cap device against a first end portion of the medicine cartridge so that the plunger of the medicine cartridge is rearwardly axially displaced relative to a component of a drive system in the pump housing and attaches to the component of the drive system in the pump housing that is positioned proximate to a second end portion of the medicine cartridge opposite from the first end portion.
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Abstract
Some embodiments of a medical infusion pump system include a pump device having a cap device that mates with a pump housing to retain a medicine cartridge therein. In addition to retaining the medicine cartridge in the pump housing, the cap device may perform a number of preparatory functions or safety functions. In addition or in the alternative, some embodiments of the pump device may include a drive system that advances a piston rod to dispense medicine to the patient in a safe and energy efficient manner.
267 Citations
29 Claims
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1. A method of operating an infusion pump device, comprising:
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engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined in an interior of the pump housing, the medicine cartridge comprising a plunger movable relative to an outer wall structure of the medicine cartridge and positioned entirely within the outer wall structure; and urging the cap device against a first end portion of the medicine cartridge so that the plunger of the medicine cartridge is rearwardly axially displaced relative to a component of a drive system in the pump housing and attaches to the component of the drive system in the pump housing that is positioned proximate to a second end portion of the medicine cartridge opposite from the first end portion. - View Dependent Claims (2, 3, 5, 6)
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4. A method of operating an infusion pump device, comprising:
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engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined by the pump housing; urging the cap device against a first end portion of the medicine cartridge so that a plunger of the medicine cartridge attaches to a component of a drive system in the pump housing that is positioned proximate to a second end portion of the medicine cartridge opposite from the first end portion; and receiving an indication of flow or nonflow of medicine through the cap device as detected by a flow sensor at least partially housed in the cap device.
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7. A method of operating an infusion pump device, comprising:
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engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined by the pump housing; urging the cap device against a first end portion of the medicine cartridge so that a plunger of the medicine cartridge is rearwardly axially displaced relative to a component of a drive system in the pump housing and attaches to the component of the drive system in the pump housing that is positioned proximate to a second end portion of the medicine cartridge opposite from the first end portion; and locking at least a portion of the cap device into engagement with the pump housing to hinder replacement the medicine cartridge after the medicine cartridge is exhausted. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of operating an infusion pump device, comprising:
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engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined in an interior of the pump housing; and urging the cap device to act upon the medicine cartridge to thereby move the medicine cartridge relative to a plunger in the medicine cartridge and urge initial break away movement of the plunger relative to an outer wall structure of the medicine cartridge. - View Dependent Claims (14, 15, 16)
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17. A method of operating an infusion pump device, comprising:
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engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined by the pump housing; and urging the cap device to act upon the medicine cartridge to thereby move the medicine cartridge relative to a plunger in the medicine cartridge and urge initial break away movement of the plunger relative to an outer wall structure of the medicine cartridge; and locking at least a portion of the cap device into engagement with the pump housing to hinder replacement the medicine cartridge after the medicine cartridge is exhausted. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method of operating an infusion pump device, comprising:
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engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined in an interior of the pump housing; urging the cap device against a first end portion of the medicine cartridge so that a plunger of the medicine cartridge attaches to a component of a drive system in the pump housing that is positioned proximate to a second end portion of the medicine cartridge opposite from the first end portion, wherein said component of the drive system comprises a piston rod that is movable toward the first end portion of the medicine cartridge, a forward end of the piston rod comprising a plunger engagement device including an adhesive layer configured to engage a rear face of the plunger of the medicine cartridge. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification