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公开(公告)号：US11638654B2
公开(公告)日：2023-05-02
申请号：US17096056
申请日：2020-11-12
发明人： Alec E. Cerchiari , Brian Feng , Timothy Foley , Christopher Mobley , Gary Neff , Ram H. Paul, Jr.
摘要： The present embodiments provide systems and methods for treating a medical condition. In one embodiment, the system comprises a stent having proximal and distal regions, and further having a delivery state and an expanded state. A therapeutic agent is disposed on a segment of the stent. The stent is disposed around an exterior surface of a core assembly in the delivery state. A coupling assembly releasably secures the proximal region of the stent to the exterior surface of the core assembly. The coupling assembly secures the stent to the core assembly for a predetermined period while the stent is in the expanded state and during release of the therapeutic agent at a target site. The coupling assembly further enables the stent to be disengaged from the core assembly and deployed in a bodily passageway.
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公开(公告)号：US20230127280A1
公开(公告)日：2023-04-27
申请号：US17967926
申请日：2022-10-18
摘要： Blood flow monitors and methods of monitoring characteristics of tissue are described. An example method of monitoring characteristics of tissue includes: placing a tissue flap at a point of treatment, the tissue flap is a section of tissue that includes a blood vessel; attaching a first sensor to the tissue flap to monitor blood flow through the blood vessel; attaching the first sensor to a blood flow monitor that has a first visual display field and a second visual display field; attaching a second sensor to the tissue flap to monitor a characteristic of the tissue flap; attaching the second sensor to the blood flow monitor; activating the blood flow monitor to observe the blood flow through the first blood vessel and the characteristic of the tissue flap; and monitoring the blood flow through the first blood vessel over a period of time and the characteristic of the tissue flap.
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公开(公告)号：US20230118608A1
公开(公告)日：2023-04-20
申请号：US18067821
申请日：2022-12-19
发明人： David Ernest Hartley
IPC分类号： A61F2/07
摘要： A stent graft for placement in a vessel of a patient, the stent graft that has a tubular body of graft material, the tubular body having a proximal inflow end, a distal outflow end, a main lumen therethrough, a longitudinal access, and a sidewall from the first end to the second end. At least one stent is along the length of the tubular body. One or more shaped recesses are formed of a concave or recessed portion of graft material that extends into the lumen of the stent graft. A fenestration is in the recessed portion with a fenestration and an internal branch extends from the or each fenestration toward the proximal end of the tubular body of graft material. The internal branch may have a tubular portion and a funnel portion, wherein the tubular portion extends into the main lumen and the enlarged funnel portion is attached to sidewall and forms the at least one shaped recess.
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公开(公告)号：US20230083032A1
公开(公告)日：2023-03-16
申请号：US17846682
申请日：2022-06-22
摘要： There is disclosed, among other things, embodiments of a biopsy needle for taking a full core sample through soft tissue. In the illustrated embodiments, the needle includes a single monolithic tubular member having a notch cut part-way through a distal portion of the tubular member to form an arch-shaped finger. At least a portion of the finger is bent toward the notch and into the lumen of the tubular member. Methods for using these embodiments are also described.
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公开(公告)号：US11602428B2
公开(公告)日：2023-03-14
申请号：US16913472
申请日：2020-06-26
IPC分类号： A61F2/24
摘要： The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.
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公开(公告)号：US11576682B2
公开(公告)日：2023-02-14
申请号：US16720637
申请日：2019-12-19
IPC分类号： A61B17/128 , A61B17/08 , A61B17/29 , A61B17/10 , A61B17/28 , A61B17/122 , A61B17/00 , A61B17/12
摘要： Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, a driver, and an elongate drive wire. The elongate drive wire may be disconnected from the driver, first and second jaws, and the housing, which are left in vivo engaged with the tissue.
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7.发明申请公开(公告)号：US20230034746A1
公开(公告)日：2023-02-02
申请号：US17876643
申请日：2022-07-29
发明人： Robert Booker
IPC分类号： A61B17/34
摘要： Medical devices that include a trigger assembly for a rotatable catheter and methods of use are described. An example medical device includes a housing, a catheter, a drive assembly, and a trigger assembly. The trigger assembly is partially disposed within the housing and includes a trigger, a drive initiator, a drive member, a flip drive, and a biasing member. The trigger is moveable between a first position and a second position relative to the housing. The flip drive is moveable between a neutral position, a first drive position, and a second drive position. The drive assembly moves relative to the housing when the flip drive is in the first drive position and the trigger is moved from its first position to its second position.
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公开(公告)号：US20230000648A1
公开(公告)日：2023-01-05
申请号：US17750042
申请日：2022-05-20
IPC分类号： A61F2/915
摘要： A stent comprises a framework that includes a sequence of cells that each occupy a discrete segment of the stent length, and each of the cells includes a plurality of struts with ends connected at respective vertices. In some forms the hollow cylindrical shape of the framework is moveable among a loading diameter that is smaller than a tube diameter, which is smaller than an expanded diameter, and every strut of the framework is oriented parallel to the stent axis when the hollow cylindrical shape is at the tube diameter. In other forms the framework includes T-bars that connect adjacent cells, where the T-bars have a column that has a minimum width perpendicular to the long axis that is wider than a maximum width of each of the struts, and the column defines at least one slot. In still other forms, the framework exhibits geometries that facilitate a high packing density for the framework when the stent is in a compressed tube or loading configuration.
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公开(公告)号：US20220395668A1
公开(公告)日：2022-12-15
申请号：US17830064
申请日：2022-06-01
发明人： Niall BENN , Jennifer O'MALLEY , Inga ROSCA , Jack COLLINS
摘要： A system for delivering an agent including a plurality of particles to a target site. The system incudes a catheter having a first wall defining an inner lumen for delivery of the agent to the target site, and a second wall surrounding the first wall to define an outer lumen therebetween for delivery of a fluid to the target site. The catheter has a distal end terminating with a primary opening of the inner lumen and a secondary opening of the outer lumen. A hub associated with a proximal end of the catheter includes a first inlet for receiving a supply of the agent and a second inlet for receiving a supply of the fluid, wherein the first inlet is in fluid communication with the inner lumen, and the second inlet is in fluid communication with the outer lumen.
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公开(公告)号：US11517712B2
公开(公告)日：2022-12-06
申请号：US16529157
申请日：2019-08-01
摘要： Described are drainage catheter hub devices which seal the hub from leakage when connected to a catheter. The catheter hub includes a hub body having an aperture with a sealing element mounted therein and a fluid passageway that communicates with the aperture. The fluid passageway and sealing element are configured to receive a tension member. A lever arm attached to the hub body is operable to secure the position of the tension member in the sealing element in a locked position or allow movement of the tension member through the sealing element in an unlocked position. The lever arm is configured to engage and compress the sealing element to block fluid flow through the sealing element and the aperture when the lever arm is in any position. The hub body may include a centering tab to align the tension member along a longitudinal axis of the hub body.
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