PREFILLED SYRINGE WITH BREAKAWAY FORCE FEATURE

    公开(公告)号:US20230191031A1

    公开(公告)日:2023-06-22

    申请号:US18169774

    申请日:2023-02-15

    IPC分类号: A61M5/20 A61M5/50

    摘要: A jet injector that includes a prefilled syringe. The syringe includes a fluid chamber that contains a medicament. The syringe also has an injection-assisting needle, and a plunger is movable within the fluid chamber. A housing is configured for allowing insertion of the needle to a penetration depth. The housing includes a retractable guard and an interference component, e.g., a lock ring, adjacent to the retractable guard that interferes with the movement of the retractable guard. An energy source is configured for biasing the plunger to produce an injecting pressure to jet inject the medicament from the fluid chamber through the needle to an injection site.

    Multiple dosage injector with rack and pinion dosage system

    公开(公告)号:US11628260B2

    公开(公告)日:2023-04-18

    申请号:US16797447

    申请日:2020-02-21

    IPC分类号: A61M5/315

    摘要: A dispensing mechanism for delivering a dosage of medicament including a housing, a push button, a crank arm that is slideably engageable with the push button, a ram, and a ratchet gear releasably engageable with the crank arm and ram, translation of the push button along an axis causing the crank arm to engage and rotate the ratchet gear which causes the ram to distally advance relative to the housing.

    Injector
    6.
    发明申请
    Injector 有权

    公开(公告)号:US20210308380A1

    公开(公告)日:2021-10-07

    申请号:US17262676

    申请日:2019-07-24

    IPC分类号: A61M5/20 A61M5/32 A61K31/485

    摘要: An injector including: a housing, a cap detachably coupled to the housing, a ram assembly having a ram configured to pressurize a medicament container for expelling a medicament therefrom, the ram assembly including a trigger engagement member, an energy source associated with the ram for powering the ram to expel medicament from the medicament container, a trigger member disposed about an axis, the trigger member moveable between a pre-firing configuration and a firing configuration, wherein medicament is expelled from the medicament container when the trigger member is in the firing configuration, a needle guard moveably coupled to the housing, the needle guard movable between a storage position and a pre-injection position, wherein the needle guard moves from the storage position to the pre-injection position as the cap is detached from the housing.

    Multiple dosage injector
    7.
    发明授权

    公开(公告)号:US11058824B2

    公开(公告)日:2021-07-13

    申请号:US16389336

    申请日:2019-04-19

    IPC分类号: A61M5/315 A61M5/24 A61M5/31

    摘要: A medicament dispensing mechanism is disclosed that is configured to eject successive doses of the medicament from a medicament chamber. An embodiment of the dispensing mechanism includes a housing and a plunger rod configured for ejecting the doses of medicament from the chamber. The dispensing mechanism further includes an actuation mechanism that comprises a trigger associated with the housing and having a ready and a fired position with respect thereto. The trigger is configured for manipulation by a user for successive movement in a generally axial dosing motion from the ready position to the fired position in which the trigger is associated with the plunger rod to cause the plunger rod to eject one of the doses of a predetermined volume and a resetting motion from the fired position to the ready position that comprises axial rotation, wherein the trigger is uncoupled from the plunger rod during the resetting motion.

    Needle assisted injection device having reduced trigger force

    公开(公告)号:US10881798B2

    公开(公告)日:2021-01-05

    申请号:US15783407

    申请日:2017-10-13

    发明人: Michael Travanty

    摘要: An injector includes a trigger mechanism including: a trigger member disposed about an axis having an aperture and a protrusion, and a ram assembly having a ram configured to pressurize a medicament container for expelling a medicament therefrom, the ram assembly further having a trigger engagement member configured to engage the aperture of the trigger member when the trigger member is in a pre-firing condition; an energy source associated with the ram for powering the ram to expel the medicament; and a user-operable firing-initiation member having an aperture engaged with the protrusion of the trigger member and operable for causing an axial translation of the trigger member in a proximal direction from the pre-firing condition to a firing condition in which the trigger engagement member is released from the retaining portion to allow the energy source to fire the ram.

    Two-Stage Reconstituting Injector
    10.
    发明申请

    公开(公告)号:US20200316307A1

    公开(公告)日:2020-10-08

    申请号:US16908136

    申请日:2020-06-22

    摘要: An injector (10) for injecting a medicament into a patient. The injector includes a container (18) defining a first chamber (22), which contains a fluid therein, and a second chamber (23). The injector also includes an injection conduit (126) configured for directing the fluid fired from the container into the patient. A transfer mechanism is operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation, and a firing mechanism is operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation. An energy source (62) is in powering association with the firing mechanism to drive firing mechanism in the first and second stages.