Systems and methods allowing for reservoir filling and infusion medium delivery
First Claim
1. A method for using a system, the system comprising a reservoir, a piston disposed at least partially within the reservoir, a plunger shaft connected to the piston, and a handle, the plunger shaft having a mating portion on an exterior surface of the plunger shaft, the mating portion for mating with a linkage portion of a drive device, the handle having a handle mating portion for mating with the mating portion of the plunger shaft, the method comprising:
- mating the handle mating portion of the handle with the mating portion of the plunger shaft so as to connect the handle to the plunger shaft;
establishing a transfer path for transferring an infusion medium from an infusion medium container to the reservoir; and
pulling the handle to move the plunger shaft so as to move the piston to allow the infusion medium to fill into the reservoir from the infusion medium container;
wherein at least some of the mating portion of the plunger shaft remains outside of the reservoir while pulling the handle to move the plunger shaft; and
wherein at least a portion of the mating portion of the plunger shaft remains within the reservoir while the plunger shaft is moved by the handle.
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Accused Products
Abstract
A system includes a durable portion with a durable housing and a separable disposable portion with a disposable housing that selectively engage with and disengage from each other. The disposable housing secures to a patient and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient or with an infusion medium may be part of the disposable portion to allow for disposal after a prescribed use. A reservoir for holding the infusion medium may be part of the disposable portion, and may be supported by the disposable housing. The durable portion may include other components such as electronics for controlling delivery of the infusion medium from the reservoir, and a drive device including a motor and drive linkage.
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Citations
28 Claims
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1. A method for using a system, the system comprising a reservoir, a piston disposed at least partially within the reservoir, a plunger shaft connected to the piston, and a handle, the plunger shaft having a mating portion on an exterior surface of the plunger shaft, the mating portion for mating with a linkage portion of a drive device, the handle having a handle mating portion for mating with the mating portion of the plunger shaft, the method comprising:
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mating the handle mating portion of the handle with the mating portion of the plunger shaft so as to connect the handle to the plunger shaft; establishing a transfer path for transferring an infusion medium from an infusion medium container to the reservoir; and pulling the handle to move the plunger shaft so as to move the piston to allow the infusion medium to fill into the reservoir from the infusion medium container; wherein at least some of the mating portion of the plunger shaft remains outside of the reservoir while pulling the handle to move the plunger shaft; and wherein at least a portion of the mating portion of the plunger shaft remains within the reservoir while the plunger shaft is moved by the handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method, comprising:
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mating a handle mating portion of a handle with a mating portion of an exterior surface of a plunger shaft; pulling the handle to move the plunger shaft to move a piston within a reservoir to cause an infusion medium to fill into the reservoir; mating a linkage portion of a drive device with the mating portion of the plunger shaft; and controlling the drive device to drive the plunger shaft so as to move the piston to force the infusion medium out of the reservoir; wherein at least some of the mating portion of the plunger shaft remains outside of the reservoir while pulling the handle to move the plunger shaft; and wherein at least a portion of the mating portion of the plunger shaft remains within the reservoir while the plunger shaft is moved by the handle. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method, comprising:
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mating a handle mating portion of a handle with a mating portion of an exterior surface of a plunger shaft, the plunger shaft connected to a piston that is within a reservoir; establishing a transfer path for transferring an infusion medium from an infusion medium container to the reservoir; and pulling the handle to move the plunger shaft so as to move the piston to allow the infusion medium to fill into the reservoir from the infusion medium container; wherein at least some of the mating portion of the plunger shaft remains outside of the reservoir while pulling the handle to move the plunger shaft; and wherein at least a portion of the mating portion of the plunger shaft remains within the reservoir while the plunger shaft is moved by the handle. - View Dependent Claims (26, 27, 28)
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Specification