Infusion pumps
First Claim
Patent Images
1. An apparatus, comprising:
- a medicament cartridge having a barrel, defining at least a substantial part of a medicament reservoir having a total filled volume, and a plunger in the barrel; and
an infusion pump assembly, including a housing holding the medicament cartridge and a pusher positioned in the housing and relative to the medicament cartridge, configured to push the plunger so as to controllably dispense out of the reservoir a dose of medicament of 0.1% or less of the total filled volume of the reservoir in accordance with a delivery profile and with a single-dose precision of better than plus or minus 20% per dose and configured to obtain the single-dose precision at an end of a time-to-precision period during which the plunger is being pushed in accordance with the delivery profile, the time-to-precision period beginning at an onset of a first pushing of the plunger for a first dose of the medicament since insertion of the medicament cartridge into the housing, and the time-to-precision period ending less than eight hours from the onset of the first pushing of the plunger.
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.
302 Citations
22 Claims
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1. An apparatus, comprising:
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a medicament cartridge having a barrel, defining at least a substantial part of a medicament reservoir having a total filled volume, and a plunger in the barrel; and an infusion pump assembly, including a housing holding the medicament cartridge and a pusher positioned in the housing and relative to the medicament cartridge, configured to push the plunger so as to controllably dispense out of the reservoir a dose of medicament of 0.1% or less of the total filled volume of the reservoir in accordance with a delivery profile and with a single-dose precision of better than plus or minus 20% per dose and configured to obtain the single-dose precision at an end of a time-to-precision period during which the plunger is being pushed in accordance with the delivery profile, the time-to-precision period beginning at an onset of a first pushing of the plunger for a first dose of the medicament since insertion of the medicament cartridge into the housing, and the time-to-precision period ending less than eight hours from the onset of the first pushing of the plunger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21)
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19. An apparatus, comprising:
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a medicament cartridge having a barrel, defining at least a substantial part of a medicament reservoir having a total filled volume, and a plunger in the barrel; an infusion pump assembly, including a housing holding the medicament cartridge and a pusher positioned in the housing and relative to the medicament cartridge, configured to push the plunger so as to controllably dispense out of the reservoir a dose of medicament of 0.1% or less of the total filled volume of the reservoir in accordance with a delivery profile and with a single-dose precision of better than plus or minus 20% per dose and configured to obtain the single-dose precision at an end of a time-to-precision period during which the plunger is being pushed in accordance with the delivery profile, the time-to-precision period beginning at an onset of a first pushing of the plunger for a first dose of the medicament since insertion of the medicament cartridge into the housing, and the time-to-precision period ending less than eight hours from the onset of the first pushing of the plunger; a detectable structure on the medicament cartridge; a detector in the infusion pump assembly housing that is configured to detect a presence of the detectable structure when the medicament cartridge has been positioned in the housing; and a controller that controls a motor that drives the pusher and is configured to determine whether or not the medicament cartridge has been positioned based on signals from the detector.
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22. An apparatus, comprising:
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a medicament cartridge having a barrel, defining at least a substantial part of a medicament reservoir having a total filled volume, and a plunger in the barrel; an infusion pump assembly, including a housing holding the medicament cartridge and a pusher positioned in the housing and relative to the medicament cartridge, configured to push the plunger so as to controllably dispense out of the reservoir an amount of medicament of 0.1% or less of the total filled volume of the reservoir in accordance with a delivery profile and with a single-dose precision of better than plus or minus 20% per dose and configured to obtain the single-dose precision at an end of a time-to-precision period during which the plunger is being pushed in accordance with the delivery profile, the time-to-precision period beginning at an onset of a first pushing of the plunger within the medicament cartridge and ending less than eight hours from the onset of the first pushing of the plunger; a detectable structure on the medicament cartridge; a detector in the infusion pump assembly housing that is configured to detect a presence of the detectable structure when the medicament cartridge has been positioned in the housing; and a controller that controls a motor that drives the pusher and is configured to determine whether or not the medicament cartridge has been positioned based on signals from the detector; wherein the detectable structure comprises a magnet; and wherein the detector comprises a sensor configured to respond to changes in a magnetic field.
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Specification