Infusion pumps and inserters for use with same
First Claim
Patent Images
1. A method of inserting a cannula, comprising the steps of:
- driving a cannula assembly and a trocar in a first direction with an inserter that is mounted to a medicament cartridge, which includes a manifold, a barrel defining a medicament reservoir and a movable plunger within the barrel, in response to rotation by a user of an outer portion of the inserter relative to an inner portion of the inserter, a portion of the cannula assembly and trocar being located within at least a portion of the manifold prior to being driven in the first direction; and
driving the trocar in a second direction, opposite the first direction, to a withdrawn position without additional action by the user and in response to the cannula assembly reaching a fired position.
3 Assignments
0 Petitions
Accused Products
Abstract
Ambulatory infusion pumps, pump assemblies, and disposable assemblies, including cartridges, baseplates, cannulas, inserters, and related components therefor, as well as component combinations and related methods.
47 Citations
17 Claims
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1. A method of inserting a cannula, comprising the steps of:
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driving a cannula assembly and a trocar in a first direction with an inserter that is mounted to a medicament cartridge, which includes a manifold, a barrel defining a medicament reservoir and a movable plunger within the barrel, in response to rotation by a user of an outer portion of the inserter relative to an inner portion of the inserter, a portion of the cannula assembly and trocar being located within at least a portion of the manifold prior to being driven in the first direction; and driving the trocar in a second direction, opposite the first direction, to a withdrawn position without additional action by the user and in response to the cannula assembly reaching a fired position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of inserting a cannula, comprising the steps of:
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driving a cannula assembly and a trocar, which have portions located within at least a portion a medicament cartridge that is connected to an inserter, with a first spring in a first direction with the inserter in response to rotation by a user of an outer portion of the inserter relative to an inner portion of the inserter; and driving the trocar in a second direction, opposite the first direction, with a second spring that is maintained in a compressed state while the first spring drives the cannula assembly and trocar in the first direction, to a withdrawn position without additional action by the user and in response to the cannula assembly reaching a fired position. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification