INFUSION PUMPS
2 Assignments
0 Petitions
Accused Products
Abstract
Ambulatory infusion pumps, pump assemblies, cartridges, baseplates, cannulas, insertion tools, and related components as well as combinations thereof and related methods.
47 Citations
531 Claims
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1-483. -483. (canceled)
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484. An infusion pump apparatus, comprising:
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a medicament cartridge including a medicament reservoir, a plunger and an outlet port; an infusion pump assembly including a housing having a cartridge receiving area, a plunger pusher in the housing, a drive mechanism, that drives the plunger pusher and has a motor, a lead screw, a gear assembly operatively positioned between the motor and the lead screw, and an encoder, and a controller to control the operation of the motor; the medicament cartridge being insertable through an opening in the housing and into the cartridge receiving area to an inserted position where the plunger is proximate to but spaced from the plunger pusher; and the controller, with the medicament cartridge in the inserted position, being configured to execute a plunger pusher zeroing procedure including causing the motor to advance the plunger pusher to contact the plunger and then to back the plunger pusher off a predetermined distance from the plunger. - View Dependent Claims (489, 495, 496, 497, 502)
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485-488. -488. (canceled)
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490-494. -494. (canceled)
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498-501. -501. (canceled)
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503. (canceled)
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504. An infusion pump apparatus, comprising:
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a medicament cartridge including a medicament reservoir, a plunger and an outlet port; a seal positionable at the outlet port in a sealed position sealing the outlet port and in a non-sealed position relative to the outlet port; an infusion pump assembly including a housing having therein a cartridge receiving area, a plunger pusher, and a drive mechanism, including a motor, that drives the plunger pusher; and the medicament cartridge being insertable through an opening in the housing with the seal in the sealed position and into the cartridge receiving area to an inserted position where the plunger is proximate to but spaced a small distance from the plunger pusher. - View Dependent Claims (505, 506, 508, 509, 510, 517)
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507. (canceled)
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511-516. -516. (canceled)
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518-519. -519. (canceled)
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520. An infusion pump method for use with an infusion pump assembly including, a plunger pusher, and a medicament cartridge, including a reservoir, a plunger that has a dry side, and an outlet port, the method comprising the steps of:
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with the outlet port sealed, propelling the plunger pusher such that the plunger pusher contacts the dry side of the plunger; and in response to sensing that the plunger pusher has contacted the plunger, reversing the drive direction of the motor to withdraw the plunger pusher a predetermined distance from the dry side of the plunger as part of a plunger pusher zeroing procedure. - View Dependent Claims (521, 524, 525, 528, 529, 530)
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522-523. -523. (canceled)
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526-527. -527. (canceled)
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531-619. -619. (canceled)
Specification