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25 条记录 (耗时 0.019 秒)

    IMPROVED TUBING FOR MANUFACTURING EXPANDABLE DEVICES
    1.
    发明申请
    IMPROVED TUBING FOR MANUFACTURING EXPANDABLE DEVICES 有权

    公开(公告)号：US20210213242A1

    公开(公告)日：2021-07-15

    申请号：US17269381

    申请日：2019-08-19

    申请人： Petrus A. Besselink

    发明人： Petrus A. Besselink

    IPC分类号： A61M25/00

    摘要： An intra-corporal medical device, a medical device and a method of making an intra-corporal medical device. In one form, the device is formed from one or more tubes with a non-axisymmetric cross-sectional profile such that tines formed in a relatively planar surface of such a device exhibit the ability to accept larger deformations that will have improved mechanical properties, including a lower tendency to buckle under bending forces. In one form, the tube or tubes are made from shape memory materials such as Nitinol that can be expanded or bent in various directions in order to take advantage of shape memory effect, linear and non-linear pseudoelasticity and strain hardened cold work.

    FLEXIBLE AND STEERABLE DEVICE
    2.
    发明申请
    FLEXIBLE AND STEERABLE DEVICE 审中-公开

    公开(公告)号：US20200038630A1

    公开(公告)日：2020-02-06

    申请号：US16566342

    申请日：2019-09-10

    申请人： Petrus A. Besselink

    发明人： Petrus A. Besselink

    IPC分类号： A61M25/00 ,  A61M25/01 ,  A61B1/005 ,  A61B18/24 ,  A61F2/88 ,  A61M25/10 ,  A61M27/00 ,  A61M29/00

    摘要： A device, a method of making a device and a method of inserting a device into a tubular path. The device includes a tubular sheath with one or more helical slots formed therein and a control element that fits within the sheath. In one form, the device is an endoluminal device that simultaneously improves flexibility and structural rigidity though variations in one or both of slot width along the length of the slot and slot pitch along the length of the tubular sheath. When the operator pulls at the proximal end of the control element while holding the outer sheath in place, the slots will tend to close in a preferential manner such that more precise control of device length and bending is enabled, while simultaneously providing improvements in structural rigidity during device insertion and navigation through a body lumen or related tubular member where tortuous paths may be encountered along the member path.

    Self-activating endoluminal device
    3.
    发明授权
    Self-activating endoluminal device 有权
    自激活性腔内装置

    公开(公告)号：US07776062B2

    公开(公告)日：2010-08-17

    申请号：US10974539

    申请日：2004-10-27

    申请人： Petrus A. Besselink ,  Hans Hanssen ,  Wouter Markus

    发明人： Petrus A. Besselink ,  Hans Hanssen ,  Wouter Markus

    IPC分类号： A61M29/00

    CPC分类号： A61M29/02 ,  A61B17/221 ,  A61B2017/003 ,  A61B2017/0046 ,  A61B2017/22047 ,  A61F2/013 ,  A61F2/95 ,  A61F2002/011 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0067 ,  A61M25/0138 ,  A61M25/0147 ,  A61M25/04 ,  A61M25/09 ,  A61M25/09025 ,  A61M2025/0681 ,  A61M2025/09141

    摘要： An improved endoluminal device. The device includes at least a control element (such as a guide wire) connected to a surrounding sheath and an elastic bias section to control changes to a bias force formed between the control element and the sheath. By applying an external force at a proximal end of the device, the shape can change between varying degrees of deformed shapes and an undeformed shape. In this way, both ease of insertion into the body lumen and anchoring to the lumen is promoted. A distal end of the assembly can be made to change shape for improved steerability, anchoring or both. In a particular form, the anchoring section can work as a floating parachute-like device to pull the assembly by means of the flow in the body lumen, while in a more particular form, the floating parachute-like device may be modified to act as a filter for trapping emboli.

    摘要翻译： 改进的腔内装置。 该装置至少包括连接到周围护套的控制元件（例如导丝）和弹性偏置部分，以控制对控制元件和护套之间形成的偏压力的变化。 通过在装置的近端施加外力，形状可以在不同程度的变形形状和未变形的形状之间变化。 以这种方式，促进插入体腔的容易性和锚固到内腔。 可以使组件的远端改变形状以改善操纵性，锚固性或两者。 在特定形式中，锚定部分可以作为浮动的降落伞状装置工作，以通过体腔中的流动来拉动组件，而在更具体的形式中，浮动式降落伞状装置可以被修改为充当 用于捕获栓塞的过滤器。

    FLEXIBLE AND STEERABLE DEVICE
    4.
    发明申请
    FLEXIBLE AND STEERABLE DEVICE 有权

    公开(公告)号：US20220143362A1

    公开(公告)日：2022-05-12

    申请号：US17579790

    申请日：2022-01-20

    申请人： Petrus A. Besselink

    发明人： Petrus A. Besselink

    IPC分类号： A61M25/00 ,  A61M25/01 ,  A61B1/005 ,  A61B18/24 ,  A61F2/88 ,  A61M25/10 ,  A61M27/00 ,  A61M29/00

    摘要： A device, a method of making a device and a method of inserting a device into a tubular path. The device includes a tubular sheath with one or more helical slots formed therein and a control element that fits within the sheath. In one form, the device is an endoluminal device that simultaneously improves flexibility and structural rigidity though variations in one or both of slot width along the length of the slot and slot pitch along the length of the tubular sheath. When the operator pulls at the proximal end of the control element while holding the outer sheath in place, the slots will tend to close in a preferential manner such that more precise control of device length and bending is enabled, while simultaneously providing improvements in structural rigidity during device insertion and navigation through a body lumen or related tubular member where tortuous paths may be encountered along the member path.

    Flexible and steerable device
    5.
    发明授权
    Flexible and steerable device 有权

    公开(公告)号：US11241557B2

    公开(公告)日：2022-02-08

    申请号：US16566342

    申请日：2019-09-10

    申请人： Petrus A. Besselink

    发明人： Petrus A. Besselink

    IPC分类号： A61M25/01 ,  A61M25/04 ,  A61M25/00 ,  A61B1/005 ,  A61B18/24 ,  A61F2/88 ,  A61M25/10 ,  A61M27/00 ,  A61M29/00 ,  A61M25/09 ,  A61B17/00 ,  A61B18/00 ,  A61F2/01

    摘要： A device, a method of making a device and a method of inserting a device into a tubular path. The device includes a tubular sheath with one or more helical slots formed therein and a control element that fits within the sheath. In one form, the device is an endoluminal device that simultaneously improves flexibility and structural rigidity though variations in one or both of slot width along the length of the slot and slot pitch along the length of the tubular sheath. When the operator pulls at the proximal end of the control element while holding the outer sheath in place, the slots will tend to close in a preferential manner such that more precise control of device length and bending is enabled, while simultaneously providing improvements in structural rigidity during device insertion and navigation through a body lumen or related tubular member where tortuous paths may be encountered along the member path.

    Apparatus for a stent or other medical device having a bistable spring construction
    7.
    发明授权
    Apparatus for a stent or other medical device having a bistable spring construction 有权
    具有双稳态弹簧结构的支架或其它医疗装置的装置

    公开(公告)号：US07235097B2

    公开(公告)日：2007-06-26

    申请号：US10523959

    申请日：2003-07-29

    申请人： Jorge Calisse ,  Petrus A. Besselink

    发明人： Jorge Calisse ,  Petrus A. Besselink

    IPC分类号： A61F2/02 ,  A61F2/04 ,  A61F2/06

    CPC分类号： A61F2/82 ,  A61F2/91 ,  A61F2/915 ,  A61F2002/91541 ,  A61F2002/9155 ,  A61F2002/91558 ,  A61F2002/91566 ,  A61F2250/0018

    摘要： A stent is described comprising a unit cell having a negative spring rate and a bistable function. The unit cell comprises first and second segments, the first segment being more rigid than the second segment. The second segment is coupled to the first segment, and the first segment comprises a substantially fixed sinusoidal shape. In the contracted state, the second segment is held stable in a sinusoidal shape, but when a force is applied the second segment bends out to a stable, convex-shaped deployed state. The second segments withstand the application of radial forces in the convex-shaped deployed state, and diametral recoil of the stent is minimized.

    摘要翻译： 描述了一种支架，其包括具有负弹簧刚度和双稳态功能的单电池。 单位单元包括第一和第二段，第一段比第二段更刚性。 第二段联接到第一段，并且第一段包括基本上固定的正弦形状。 在收缩状态下，第二段以正弦形状保持稳定，但是当施加力时，第二段弯曲成稳定的凸形展开状态。 第二部分承受在凸形展开状态下的径向力的应用，并且使支架的直径反冲最小化。

    STENTED VALVE
    9.
    发明申请
    STENTED VALVE 审中-公开

    公开(公告)号：US20200000593A1

    公开(公告)日：2020-01-02

    申请号：US16489528

    申请日：2018-02-27

    申请人： Petrus A. Besselink

    发明人： Petrus A. Besselink

    IPC分类号： A61F2/24

    摘要： A stented valve suitable for use in body ducts. The valve includes an expandable support structure and an attached flexible membrane that changes shape when the valve opens and closes. The expandable support structure has the shape of a stent with a series of interconnected expandable unit cells and elongated support beams. When the valve is open, body fluid can flow around the membrane and pass through the gap between it and the inner stent surface. In one configuration, a set of two valves is combined with an intermediate inflatable balloon to create a cardiac assist pumping device. In another embodiment, valve closure can be achieved by remotely controlled valve leaflets actuation. A double aorta valve frame is used to accommodate shape and diameter variations of the annulus in an outer valve frame, while the inner valve frame has dimensions for optimized performance of the valve membrane.