CARTRIDGE HOLD-UP VOLUME REDUCTION
    11.
    发明申请

    公开(公告)号:US20180200444A1

    公开(公告)日:2018-07-19

    申请号:US15875115

    申请日:2018-01-19

    Abstract: Drug delivery systems with reduced hold-up volumes are provided. The drug delivery systems include a cartridge configured to hold a liquid drug. A cartridge stopper is positioned in a first portion of the cartridge. A needle guide component is positioned within the cartridge stopper. A needle is positioned within a central opening of the needle guide. A plunger is positioned in a second portion of the cartridge. The plunger includes a fluid path pocket facing and aligned with the central opening of the needle guide component. The plunger is driven toward the cartridge stopper to expel the liquid drug from the cartridge through the needle. An end of the needle can be positioned within the fluid path pocket when the plunger is pushed against the cartridge stopper, ensuring that only a small volume of the liquid drug remains in the cartridge when delivery of the liquid drug is completed.

    DRUG DELIVERY DEVICE INCLUDING PUMP WITH FLOATING MICRONEEDLE ASSEMBLY

    公开(公告)号:US20220273927A1

    公开(公告)日:2022-09-01

    申请号:US17669106

    申请日:2022-02-10

    Abstract: Embodiments of the present disclosure relate to techniques, processes, devices or systems including a floating microneedle assembly decoupled from the device and protected by a pump housing. In one approach, a wearable drug delivery device may include a pump housing including a base attachable to a user, and a microneedle assembly coupled to a cannula. The microneedle assembly may be operable to deliver a liquid drug to the user, wherein the microneedle assembly comprises a carrier positioned proximate an opening of the base, and wherein the carrier comprises a plurality of microneedles operable to extend through the opening of the base to penetrate a skin of the user.

    LINEAR SHUTTLE PUMP FOR DRUG DELIVERY

    公开(公告)号:US20220105260A1

    公开(公告)日:2022-04-07

    申请号:US17552407

    申请日:2021-12-16

    Abstract: Examples of fluid delivery drive system and/or pump system that creates a vacuum in a fluid line for drawing and expelling fluid are provided. The vacuum may be created by separating two components that are positioned within the sealed fluid line. Once the two components are separated and the fluid is contained within the volume created between the separated components, the two components may be shuttled within the sealed volume. The movement of the two components can seal off an inlet to the fluid line and then open a pathway to an outlet from the fluid line while ensuring the created volume between the two components is maintained constant. The two components can then be moved back together to expel the fluid from the created volume through the outlet for delivery, for example, to a patient. Other examples are disclosed and described.

    CARTRIDGE HOLD-UP VOLUME REDUCTION
    15.
    发明申请

    公开(公告)号:US20200179608A1

    公开(公告)日:2020-06-11

    申请号:US16794689

    申请日:2020-02-19

    Abstract: Drug delivery systems with reduced hold-up volumes are provided. The drug delivery systems include a cartridge configured to hold a liquid drug. A cartridge stopper is positioned in a first portion of the cartridge. A needle guide component is positioned within the cartridge stopper. A needle is positioned within a central opening of the needle guide. A plunger is positioned in a second portion of the cartridge. The plunger includes a fluid path pocket facing and aligned with the central opening of the needle guide component. The plunger is driven toward the cartridge stopper to expel the liquid drug from the cartridge through the needle. An end of the needle can be positioned within the fluid path pocket when the plunger is pushed against the cartridge stopper, ensuring that only a small volume of the liquid drug remains in the cartridge when delivery of the liquid drug is completed.

    PRE-FILLED CARTRIDGE-BASED DRUG DELIVERY DEVICE

    公开(公告)号:US20220331521A1

    公开(公告)日:2022-10-20

    申请号:US17855910

    申请日:2022-07-01

    Abstract: A wearable drug delivery device that can deliver a liquid drug stored in a container to a patient is provided. The container can be a prefilled cartridge that can be loaded into the drug delivery device by the patient or that can be preloaded within the drug delivery device when provided to the patient. A sealed end of the container is pierced to couple the stored liquid drug to a needle conduit that is coupled to a needle insertion component that provides access to the patient. A drive system of the drug delivery device can expel the liquid drug from the cartridge to the patient through the needle conduit. The drive system can be controlled to provide the liquid drug to the patient in a single dose or over multiple doses.

    PUMPING MECHANISM WITH WIRE-PULLED PLUNGER

    公开(公告)号:US20220288302A1

    公开(公告)日:2022-09-15

    申请号:US17674113

    申请日:2022-02-17

    Abstract: Disclosed herein are devices and methods for causing the linear translation of a plunger through a reservoir containing a fluid. A flexible member, for example, a wire or a ribbon, is coupled to the plunger and extends through a wall of the reservoir toward which the plunger is being linearly translated. A pulling force on the flexible member caused by a drive mechanism causes the plunger to linearly translate toward the end wall of the reservoir, thereby forcing any fluid contained in the reservoir out of the reservoir through a fluid port.

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