Operating an Infusion Pump System
AssigneeM2 Medical A/S
InventorsJames Causey, Todd Kirschen, Mitchell Wenger, Steven Friedman, Joshua Colton, Keld Christensen
Life of this patent
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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.
Claims21
An infusion pump device, comprising:
- a pump housing that defines a space to receive a medicine cartridge;
- a drive system to dispense a medicine from the medicine cartridge when the medicine cartridge is received by the pump housing;
- and
- a cap device that engages the pump housing to retain the medicine cartridge therein when the medicine cartridge is received by the pump housing,
- wherein when the cap device engages the pump housing, the cap device acts upon the medicine cartridge to urge a plunger of the medicine cartridge to attach to a component of the drive system.
A method of operating an infusion pump device, comprising:
- engaging a cap device with a pump housing to retain a medicine cartridge in a space defined by the pump housing;
- and
- urging the cap device against the medicine cartridge so that a plunger of the medicine cartridge attaches a component of a pump drive system.
An infusion pump device, comprising:
- a pump housing that defines a space to receive a medicine cartridge;
- a drive system to dispense a medicine from the medicine cartridge when the medicine cartridge is received by the pump housing;
- the drive system comprising a piston rod having a plunger engagement device that attaches to the plunger of the medicine cartridge when the medicine cartridge is received by the pump housing.
Dependencies are inferred from the claim text.