Plunger for drug delivery device
    31.
    发明授权

    公开(公告)号:US10363372B2

    公开(公告)日:2019-07-30

    申请号:US15674974

    申请日:2017-08-11

    Inventor: David Nazzaro

    Abstract: Plunger systems for expelling a liquid drug from a drug container within a wearable drug delivery device are provided. A rotation system coupled to a plunger rotates the plunger about a central axis of the plunger to overcome a static friction between the plunger and the drug container. After rotating the plunger, a drive system moves the plunger forward into the drug container to expel the liquid drug for delivery to the patient. A collapsible plunger includes a cavity. A radial torsion spring positioned in the cavity can provide an outward radial force on the collapsible plunger. The cavity enables the collapsible plunger to compress radially when entering and passing through a region of a drug container having a relatively narrower width. The radial torsion spring can radially expand the collapsible plunger when entering and passing through a region of the drug container having a relatively wider width.

    DIAGNOSTIC MEDICAL DEVICE AND METHODS OF USE THEREOF

    公开(公告)号:US20170219555A1

    公开(公告)日:2017-08-03

    申请号:US15009979

    申请日:2016-01-29

    Abstract: A medical device to test bodily fluid, the device comprising a light emitting source, the light emitting source arranged to emit light inside the medical device; a test strip port, the test strip port comprising a test strip port receptacle to receive a test strip; and the light emitting source and the test strip port arranged such that, when the light emitting source emits light, at least a portion of the light emitted from the light emitting source is redirected inside the medical device to provide redirected light inside the medical device, and at least a portion of the redirected light lights the test strip port from inside the medical device in a manner than the redirected light is visible outside the test strip port.

    Drug delivery device with indicator

    公开(公告)号:US11497856B2

    公开(公告)日:2022-11-15

    申请号:US16534376

    申请日:2019-08-07

    Abstract: Systems and methods for monitoring an operational state and/or a fill status of a drug container of a drug delivery device are provided. The drug container can hold a liquid drug. A plunger can be positioned within the drug container. A drive system can advance the plunger to expel the liquid drug from the container. A monitoring system can detect a movement and/or a position of the plunger and/or any component coupled to the plunger. The detection can enable determination of an amount of liquid drug that has been expelled and/or an amount of liquid drug remaining in the drug container. Dosing rates, flow rates, and dosage completion can also be determined.

    Variable fill drug delivery device
    38.
    发明授权

    公开(公告)号:US11439765B2

    公开(公告)日:2022-09-13

    申请号:US16524647

    申请日:2019-07-29

    Inventor: David Nazzaro

    Abstract: Variable fill drug delivery devices for delivering a therapeutic agent to a patient are provided. A variable fill drug delivery device includes a drug container to store a variable amount (or user-selectable amount) of a therapeutic agent. A plunger of the variable fill drug delivery device is positioned in the drug container. An infusion engine of the variable fill device is coupled to the plunger. The infusion engine retains the plunger prior to activation of the variable fill drug delivery device and releases the plunger after activation of the variable fill drug delivery device. After activation, the infusion engine drives the plunger from a first position within the drug container to a second position within the drug container to expel the variable amount of the therapeutic agent from the drug container for delivery to a patient.

    Wearable medication delivery device

    公开(公告)号:US11364341B2

    公开(公告)日:2022-06-21

    申请号:US16519349

    申请日:2019-07-23

    Abstract: Systems and methods for delivering a medication to a person experiencing an emergency medical event without requiring intervention or action on the part of the person. A device encases a reservoir of medication and a delivery mechanism. Sensors in the housing sense a physical attribute of the person and circuitry monitors information collected by the sensors to determine if the person is experiencing a severe medical condition or event based on the information. An input device on or in the housing, such as a button, may be used or activated by the person if the detected condition or event is a false positive to cancel further action. If the system does not include the button or if the user does not press it in time, the system activates the delivery device and injects the medication into the person.

    Fluid flow regulation arrangements for drug delivery devices

    公开(公告)号:US10973978B2

    公开(公告)日:2021-04-13

    申请号:US16049388

    申请日:2018-07-30

    Abstract: A fluid flow regulator of a fluid delivery system that can adjust a flow rate of a liquid drug dispensed from a liquid drug container to a user is provided. The fluid flow regulator can be coupled to an end of the liquid drug container. The fluid flow regulator can include a compliance plate and a flow channel selector plate having a fluid flow channel. The flow channel selector plate can be rotated relative to the compliance plate and the liquid drug container to expose a selected portion of the fluid flow channel to openings in the compliance plate that are in fluid communication with the liquid drug stored in the liquid drug container. The selected portion of the fluid flow channel can correspond to a corresponding flow resistance of the liquid drug through the fluid flow channel, thereby regulating the flow of the liquid drug to the user.

Patent Agency Ranking