METHODS AND DEVICES FOR DETERMINING FLUID DELIVERY PUMP INFORMATION

    公开(公告)号:US20220362465A1

    公开(公告)日:2022-11-17

    申请号:US17742998

    申请日:2022-05-12

    Abstract: Wearable fluid delivery devices and pump systems having a pump status determination assembly to determine a status of at least one component of a fluid pump are described. For example, in one embodiment, a fluid pump system for a wearable fluid delivery device may include a control system, a first pump element associated with a first electrical element, a second pump element associated with a second electrical element, wherein the first pump element is configured to engage the second pump element to form an electrical circuit between the first electrical element and the second electrical element, the control system configured to receive at least one signal from the electrical circuit. Other embodiments are described.

    FLUID DELIVERY PUMP VALVE ASSEMBLY
    12.
    发明申请

    公开(公告)号:US20220323674A1

    公开(公告)日:2022-10-13

    申请号:US17715536

    申请日:2022-04-07

    Abstract: Wearable fluid delivery devices and pump systems having a bistable valve for setting a fluid path in one of a fluid fill state or a fluid delivery state are described. For example, in one embodiment, a fluid pump system for a wearable fluid delivery device may include a pump chamber to store a fluid, a fluid path valve operable with the pump chamber, the fluid path valve may include a fixed portion and a movable portion, a shaft configured to move along the fixed portion to engage the movable portion responsive to a force imparted by an actuator, the movable portion comprising an offset to deflect movement of the shaft to cause the movable portion to pivot from one of a first position to a second position to the other of the first position or the second position responsive to being engaged by the shaft. Other embodiments are described.

    LIQUID DETECTION SENSOR
    13.
    发明公开

    公开(公告)号:US20240337508A1

    公开(公告)日:2024-10-10

    申请号:US18625827

    申请日:2024-04-03

    CPC classification number: G01D5/165 A61M5/31568 G16H20/13

    Abstract: In an aspect, a system for determining a liquid level in a drug delivery device is presented. The system includes a first spring and a second spring positioned adjacent the first spring. The system includes a rod configured to compress at least the first spring and contact the second spring. The system includes a sensing element in communication with the first spring and the second spring. The sensing element is configured to detect a difference in voltage of at least the first spring. A difference in voltage of at least the first spring corresponds to an amount of liquid drug of the drug delivery device.

    COMPACT RATCHET MECHANISM
    14.
    发明公开

    公开(公告)号:US20240226452A9

    公开(公告)日:2024-07-11

    申请号:US18490413

    申请日:2023-10-19

    CPC classification number: A61M5/31576

    Abstract: A drug delivery drive mechanism including a ratchet wheel including a plurality of teeth, a ratchet arm including a first prong and a second prong, wherein the first prong is operable interact with a tooth of the plurality of teeth to rotate the ratchet wheel in a circular direction, and the second prong is operable to interact with another tooth of the plurality of teeth to further rotate the ratchet wheel in the circular direction.

    DUAL NEEDLE VALVE FOR A WEARABLE DRUG DELIVERY DEVICE

    公开(公告)号:US20230094194A1

    公开(公告)日:2023-03-30

    申请号:US17936554

    申请日:2022-09-29

    Abstract: Disclosed is a valve for use in a pump for a wearable drug delivery device for moving a liquid drug from reservoir into a pump chamber and thereafter from the pump chamber to a patient interface. The valve can comprise two needles, a first needle in fluid communication with the reservoir and a second needle in fluid communication with the patient interface. The first and second needles may be linearly translated to either cover the lumen opening of a needle with a septum or place the lumen opening of the needle in fluid communication with the pump chamber. When the first needle is in fluid communication with the pump chamber, the liquid drug may be transferred from the reservoir to the pump chamber via suction created by a plunger in the pump chamber. When the second needle is in fluid communication with the pump chamber, the liquid drug may be transferred from the pump chamber to the patient interface via a pressure created by the plunger in the pump chamber.

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