IN-LINE AIR BUBBLE SUSPENSION APPARATUS FOR ANGIOGRAPHY INJECTOR FLUID PATHS

    公开(公告)号:US20240066239A1

    公开(公告)日:2024-02-29

    申请号:US18504823

    申请日:2023-11-08

    IPC分类号: A61M5/36 A61M5/00 A61M5/145

    摘要: An apparatus for suspending air bubbles in a fluid path of a fluid injector system includes an internal chamber having a curved interior wall defined within the housing, an inlet fluid pathway in fluid communication with the internal chamber, and an outlet fluid pathway in fluid communication with the internal chamber. The inlet fluid pathway extending into the chamber at a tangent to the curved interior wall, and the outlet fluid pathway spaced from the inlet fluid pathway such that fluid flowing into the internal chamber via the inlet fluid pathway is directed away from the outlet fluid pathway. The internal chamber is configured to create an internal fluid vortex in an injection fluid entering the internal chamber from the inlet fluid pathway, and wherein the internal fluid vortex at least temporarily suspends one or more air bubbles in the fluid in the internal vortex and delays the passage of the one or more air bubbles to the outlet fluid pathway.

    Fluid sensor
    13.
    发明授权

    公开(公告)号:US11857760B2

    公开(公告)日:2024-01-02

    申请号:US18052166

    申请日:2022-11-02

    摘要: A fluid sensing apparatus and method for detecting pressure and a presence of a bubble within a fluid tube. The fluid sensing apparatus comprises a housing configured to receive a portion of the fluid tube and to house a pressure sensor and an ultrasonic transmitter. The pressure sensor is positioned adjacent the fluid tube and is configured to receive a pressure sensor signal, which correlates to a detected pressure differential within the fluid tube. A controller transmits a drive signal to the ultrasonic transmitter, which emits ultrasonic waves through a portion of the fluid tube and to the pressure sensor. The pressure sensor receives both the ultrasonic waves and the pressure sensor signal, and subsequently transmits an output signal to the controller. In a presence of the detected pressure differential or the bubble within the fluid tube, the output signal will exhibit a DC shift or a distortion of signal characteristics of the output signal, respectively.

    Air trap chamber and extracorporeal circulation circuit

    公开(公告)号:US11833287B2

    公开(公告)日:2023-12-05

    申请号:US17049927

    申请日:2019-03-15

    申请人: NIKKISO CO., LTD.

    IPC分类号: A61M1/36 B01D19/00 A61M5/36

    摘要: An air trap chamber is provided with a chamber body and a filter. An introduction pipe of the chamber body is provided so as to extend to the inside of the chamber body, and an inlet port which is an end opening of the introduction pipe is provided, on the inner circumferential surface of the chamber body, so as to be directed toward the circumferential direction. The filter is provided inside the chamber body, and covers an outlet port of the chamber body. Openings are formed, at multiple stages along the center axis direction, in the cylindrical portion of the filter. An opening at an upper stage on the ceiling portion side of the filter has a circumferential width greater than that of an opening at a lower stage on the outlet port side.

    LOW DOSE SYRINGE INCLUDING AN AIR VENTING SYSTEM

    公开(公告)号:US20230248916A1

    公开(公告)日:2023-08-10

    申请号:US18134866

    申请日:2023-04-14

    发明人: Yiping Ma

    IPC分类号: A61M5/315 A61M5/178 A61M5/36

    摘要: Medical devices capable of filling liquid into a syringe barrel while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel having a tapered sidewall portion for permitting air to vent from the chamber and preventing liquid from exiting the chamber, a plunger rod, and stopper. Another exemplary medical device includes a syringe barrel having a plurality of air venting grooves associated with the sidewall of the barrel, a plunger rod and stopper. Also described is a medical device including a syringe barrel, plunger rod and stopper having a porous plug. Described is a medical device including a syringe barrel having a plurality of air venting grooves associated with the sidewall of the barrel and a porous membrane disposed over the air venting grooves, a plunger rod and stopper. Methods for filling a syringe barrel with a liquid are also provided.