ADHESIVE LAYER WITH MULTIPLE STRENGTHS OF ADHESIVES FOR SECURING AN ON-BODY MEDICAL DEVICE TO A USER

    公开(公告)号:US20240058526A1

    公开(公告)日:2024-02-22

    申请号:US18450081

    申请日:2023-08-15

    CPC classification number: A61M5/14248 A61M2025/0266

    Abstract: In exemplary embodiments, an on-body medical device has an adhesive layer with adhesives of two or more strengths. In some of the exemplary embodiments, a stronger adhesive is positioned on the adhesive layer where additional strength is needed, such as around the perimeter of the adhesive layer to prevent premature peeling. A weaker adhesive is positioned on other portions of the adhesive layer where there is no need for the strength of the stronger adhesive. In other exemplary embodiments, three strengths of adhesives are used on the adhesive layer. An intermediate strength adhesive is used along with a stronger adhesive and a weaker adhesive. The intermediate strength adhesive may be used in areas where the weaker adhesive does not provide enough strength but the full strength of the stronger adhesive is not needed.

    METHODS AND SYSTEMS FOR STERILIZING SEALED COMPONENTS OF A DRUG DELIVERY DEVICE

    公开(公告)号:US20230136536A1

    公开(公告)日:2023-05-04

    申请号:US18052287

    申请日:2022-11-03

    Abstract: Fluid delivery devices with sterilization management systems are described. For example, a fluid delivery device may include a device region fluidically coupled to a fluid path, the fluid path having at least one opening to allow a sterilization source to flow into the device region, an exposure valve arranged in the fluid path and configured to seal or unseal the at least one opening, the exposure valve comprising a piston having a sealing component arranged at a first end facing the at least one opening, a biasing element configured to contact a second end of the piston, arranged opposite the first end, to bias the piston toward the at least one opening, an activation element configured to be activated by a stimulus to move the piston to a sterilization position during a sterilization process and deactivated responsive to removal of the stimulus to cause the piston to be moved into a sealing position, the at least one opening is unsealed when the piston is in the sterilization position to allow a sterilization source to sterilize the device region via the fluid path. Other embodiments are described.

    ROTARY SOLENOID MICRO ACTUATOR WITH DRIVE COIL

    公开(公告)号:US20240058524A1

    公开(公告)日:2024-02-22

    申请号:US18451328

    申请日:2023-08-17

    CPC classification number: A61M5/14244 A61M5/14216 A61M2205/0272

    Abstract: Disclosed are techniques, devices and systems that provide a rotary solenoid micro actuator that has a rotary solenoid core with dual magnetic drive coils and magnetic field focusing elements. One or more examples may also include a spring return and other examples may include two sets of drive coils to push and pull on at each magnetic gap. The magnetic field focusing elements are operable to increase the magnetic field. The rotary solenoid micro actuator is configured to cause a liquid drug to be expelled from a drug delivery device.

    FLEXIBLE LINKAGE FOR POSITIVE DISPLACEMENT PUMPS

    公开(公告)号:US20230122652A1

    公开(公告)日:2023-04-20

    申请号:US18047072

    申请日:2022-10-17

    Abstract: A novel embodiment of a pump mechanism, for example, of the type that would be used in a wearable drug delivery system, comprises, in a preferred embodiment, a reservoir, a plunger, disposed within the reservoir and driven by a coiled flexible linkage connected to a drive mechanism, such that a force imparted by the drive mechanism causes the coiled flexible linkage to uncoil, causing a linear translation of the plunger through the reservoir to force a liquid drug contained within the reservoir through a fluid port to a patient.

    DRUG DELIVERY DEVICE DRIVE SENSOR
    6.
    发明公开

    公开(公告)号:US20240197983A1

    公开(公告)日:2024-06-20

    申请号:US18543617

    申请日:2023-12-18

    Inventor: Kyle BREINGAN

    CPC classification number: A61M5/14216 A61M5/172

    Abstract: Disclosed are techniques for managing the application of a force by a drive mechanism in a drug delivery device as well as devices for implementing the disclosed techniques. One or more driving arms may be operable to drive a respective ratchet wheel and one or more sensor contacts may be positioned to determine when a respective driving arm is to be controlled to no longer drive the respective ratchet wheel thereby saving electrical power. The disclosed techniques and devices may be incorporated in a drug delivery device, such as those carried by a person or affixed to the skin of a person.

    COMPACT RATCHET MECHANISM
    7.
    发明公开

    公开(公告)号:US20240131270A1

    公开(公告)日:2024-04-25

    申请号:US18490413

    申请日:2023-10-18

    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.

    PUMP MECHANISM WITH DOUBLE RESERVOIR AND STATIONARY FLUID PORTS

    公开(公告)号:US20240042126A1

    公开(公告)日:2024-02-08

    申请号:US18160429

    申请日:2023-01-27

    CPC classification number: A61M5/142 A61M2005/14252

    Abstract: Disclosed herein is a double reservoir configuration for a pumping mechanism for a drug delivery device wherein one reservoir is rigidly fixed to a housing of the device and the other reservoir moves linearly translates with respect to the fixed reservoir. To avoid having either the input fluid port or the output fluid port moves as the second reservoir linearly translates, one port is in fluid communication with the fixed reservoir and a second fluid port is in communication with the moving reservoir via a hollow tube supporting a static plunger disposed within the moving reservoir. This arrangement provides for the added benefit of allowing air trapped within either of the reservoirs to be almost completely removed as the pump mechanism is filled with the fluid.

    CAPACITANCE SENSING FOR COMPONENT POSITIONING DETECTION

    公开(公告)号:US20230166032A1

    公开(公告)日:2023-06-01

    申请号:US18059170

    申请日:2022-11-28

    CPC classification number: A61M5/172

    Abstract: Disclosed herein are drug delivery devices and methods for component positioning of a pump, such as a linear shuttle pump. In some approaches, a system may include first and second terminals movable with respect to one another, and a sensor device operable to detect a change in capacitance between the first and second terminals as the first and second terminals move with respect to one another. The sensor device may include a two-stage charger connected with a controller and a voltage source, the two-stage charger having a first capacitor connected with a first switch and a second capacitor connected with a second switch, the controller being operable to close the first switch to connect the first capacitor with the voltage source to charge the first capacitor, and open the first switch and close the second switch to connect the second capacitor with the voltage source to charge the second capacitor.

    DRIVE DEVICE INCLUDING FLEXIBLE PLUNGER SHAFT

    公开(公告)号:US20230248901A1

    公开(公告)日:2023-08-10

    申请号:US18164708

    申请日:2023-02-06

    CPC classification number: A61M5/14216 A61M5/14244

    Abstract: Embodiments of the present disclosure relate to techniques, processes, devices or systems for pump devices. In one approach, a wearable drug delivery device may include a reservoir configured to store a fluid, the reservoir including a housing defining an interior chamber. The wearable drug delivery device may further include a drive device for driving the fluid from the reservoir, the drive device including a plunger head within the interior chamber of the housing, and a plunger shaft extending from the plunger head. The plunger shaft may include a first component adjacent a second component, wherein during movement of the plunger head in a first direction the first and second components engage one another to form a rigid portion of the plunger shaft, and wherein during movement of the plunger head in a second direction, opposite the first direction, the first and second components are separated from one another.

Patent Agency Ranking