Hydrodynamically Actuated Preservative Free Dispensing System Having a Collapsible Liquid Reservoir

    公开(公告)号:US20240277516A1

    公开(公告)日:2024-08-22

    申请号:US18653727

    申请日:2024-05-02

    发明人: Yehuda Ivri

    IPC分类号: A61F9/00 A61J1/14

    CPC分类号: A61F9/0008 A61J1/1443

    摘要: Multi-dose preservative-free ocular fluid delivery devices are provided. The fluid delivery device includes a fluid dispensing system and a fluid package for storing a liquid therein and supplying said liquid to the dispensing system. The dispensing system comprises an elongated chamber which includes a check valve which defines a frontal closure to the chamber. The valve is normally closed and hermetically seals the chamber. The dispenser includes a vibration motor that induces oscillations to the chamber and to the fluid within. The oscillations of the chamber impart momentum to the fluid stored in the chamber which in turn imparts force that cyclically opens the valve to dispense streams or liquid droplets. Fluid is dispensed only when the motor oscillates while otherwise the valve is hermetically closed. The fluid package can be made collapsible to remove the need to vent it.

    INTRAOCULAR LENS INJECTOR APPARATUS
    5.
    发明公开

    公开(公告)号:US20240148492A1

    公开(公告)日:2024-05-09

    申请号:US18053070

    申请日:2022-11-07

    IPC分类号: A61F2/16

    CPC分类号: A61F2/167 A61F2002/1681

    摘要: An injector for injecting an IOL into an eye, comprising an injector body having a lumen wall defining a lumen, a plunger having a longitudinal axis and a soft tip at a distal end of the plunger. The soft tip having a concave distal surface. In a plane including the longitudinal axis, the plane being perpendicular to an IOL optical axis when the IOL is located at a staging area of the injector body, the concave distal surface extending in a direction at a non-perpendicular angle relative to the longitudinal axis. The concave distal surface may be oval-shaped in a plane perpendicular to the direction, and the concave distal surface has no curvature along the direction.

    Hydrodynamically actuated preservative free dispensing system

    公开(公告)号:US11938057B2

    公开(公告)日:2024-03-26

    申请号:US17509383

    申请日:2021-10-25

    发明人: Yehuda Ivri

    IPC分类号: A61F9/00 A61B17/00

    摘要: Multi-dose preservative-free ocular fluid delivery devices are provided. The fluid delivery device includes a fluid dispensing system and a fluid package for storing a liquid therein and supplying said liquid to the dispensing system. The dispensing system comprises an elongated chamber which includes a check valve which defines a frontal closure to the chamber. The valve is normally closed and hermetically seals the chamber. The dispenser includes a vibration motor that induces oscillations to the chamber and to the fluid within. The oscillations of the chamber impart momentum to the fluid stored in the chamber which in turn imparts force that cyclically opens the valve to dispense streams or liquid droplets. Fluid is dispensed only when the motor oscillates while otherwise the valve is hermetically closed.

    Vitrectomy cutter
    9.
    发明授权

    公开(公告)号:US11865040B2

    公开(公告)日:2024-01-09

    申请号:US17316117

    申请日:2021-05-10

    发明人: Allen Skinner

    IPC分类号: A61F9/007

    CPC分类号: A61F9/00736

    摘要: A vitrectomy system includes a surgical cutting apparatus and a processor. The system includes a cutting assembly with an outer cutter and an inner cutter. The cutting assembly includes a housing containing a drive chamber, a spring chamber, at least a first diaphragm. The first diaphragm is adhered to the inner cutter and positioned between the drive chamber and the spring chamber. The system also includes a drive chamber valve to supply compressed air to the drive chamber and a spring chamber valve to adjust air pressure within the spring chamber. The processor is configured to pulse the drive chamber valve based on a desired cut rate to translate the inner cutter and adjust the air pressure within the spring chamber based on the desired cut rate to adjust the stiffness of the spring chamber.