VALVE GASKET AND HEMOSTASIS VALVES AND CANNULA UNITS INCORPORATING THE SAME

    公开(公告)号:US20240252802A1

    公开(公告)日:2024-08-01

    申请号:US18560978

    申请日:2022-05-10

    发明人: Xiaoping GUO

    IPC分类号: A61M39/06 A61M39/02

    摘要: A gasket for a hemostasis valve includes an annular wall, a membrane, a central protrusion on the membrane, and a plurality of ligaments attached to the central protrusion extending radially to the annular wall. The membrane, central protrusion, and ligaments are divided by slits into a plurality of flaps, with each flap bounded along an outer circumferential edge by the annular wall, along an inner circumferential edge by the central protrusion, and along its radial edges by segments of the ligaments. Two such gaskets can be arranged, back-toback, in a hemostasis valve. To facilitate such assembly, each gasket can include a plurality of positioning protrusions extending axially and a plurality of positioning recesses set into a circumferential surface, with the protrusions and recesses having complementary shapes for proper interconnection and fit between gaskets.

    Instrument Delivery Device with Nested Housing

    公开(公告)号:US20240075270A1

    公开(公告)日:2024-03-07

    申请号:US17901005

    申请日:2022-09-01

    IPC分类号: A61M39/02

    摘要: Provided herein is an instrument delivery device for advancing an instrument into a vascular access device. The instrument delivery device includes an outer housing, a connector coupled to the outer housing and including a projection member that mates with the vascular access device, and an inner housing having a distal end positioned within the outer housing and engaged with a proximal end of the instrument. The inner housing moves relative to the outer housing so that a distal movement thereof moves the instrument from a first position to a second position, with a distal end of the instrument moving from within the outer housing to out beyond the distal end of the outer housing and the projection member. A fluid flow preventing seal provided in or adjacent the connector prevents a transfer of fluid between the vascular access device and the inner volume of the outer housing.

    IMPLANTABLE ACCESS PORT WITH ONE-DIRECTIONAL FILTER

    公开(公告)号:US20230364405A1

    公开(公告)日:2023-11-16

    申请号:US18223639

    申请日:2023-07-19

    申请人: Medtronic, Inc.

    发明人: Touby A. Drew

    IPC分类号: A61M39/02 A61M39/04

    摘要: An implantable access port including a port housing that defines a fill port cavity and includes a catheter fitting, a filter positioned within the port housing along a delivery flow pathway configured so that fluid injected into the fill port cavity passes through the filter prior to exiting through the catheter fitting, a one-way valve positioned within the port housing along an aspiration flow pathway configured to permit aspirated fluid to flow unfiltered from the catheter fitting to the fill port cavity and prevent injected fluid from flowing unfiltered from the fill port cavity to the catheter fitting, a port cover coupled to the port housing, and a pierceable septum positioned between the fill port cavity and the port cover configured to allow a needle to pierce through the pierceable septum to access the fill port cavity.

    Implantable access port with one-directional filter

    公开(公告)号:US11745003B2

    公开(公告)日:2023-09-05

    申请号:US17085569

    申请日:2020-10-30

    申请人: Medtronic, Inc.

    发明人: Touby A. Drew

    IPC分类号: A61M39/02 A61M39/04

    摘要: An implantable access port including a port housing that defines a fill port cavity and includes a catheter fitting, a filter positioned within the port housing along a delivery flow pathway configured so that fluid injected into the fill port cavity passes through the filter prior to exiting through the catheter fitting, a one-way valve positioned within the port housing along an aspiration flow pathway configured to permit aspirated fluid to flow unfiltered from the catheter fitting to the fill port cavity and prevent injected fluid from flowing unfiltered from the fill port cavity to the catheter fitting, a port cover coupled to the port housing, and a pierceable septum positioned between the fill port cavity and the port cover configured to allow a needle to pierce through the pierceable septum to access the fill port cavity.