摘要:
The invention relates to a suction stent for introduction into a hollow organ of the human or animal body, preferably into the gastrointestinal tract, in particular the intestine, comprising a tubular hollow body which is open in the longitudinal direction and made of biocompatible material, the tubular hollow body having a fixed diameter at least in its central portion; and a porous shapeable material, preferably a sponge material, which is biocompatible and shapeable in the radial direction, the porous shapeable material radially sheathing the tubular hollow body at least in a section of the tubular hollow body. Further, the invention relates to a method for sealing a leakage, especially an anastomosis, of the hollow organ.
摘要:
Methods and devices for treating a luminal pathology affecting an anatomical lumen of a patient comprising forming, in situ, a continuous cohesive layer of covalently-crosslinked hydrogel in a luminal wall of the anatomical lumen.
摘要:
A delivery system for forming a stent in-situ may comprise an elongate shaft having a proximal end and a distal end and a lumen extending from the proximal end towards the distal end of the elongate shaft. A plurality of apertures may be positioned adjacent to a distal end region of the elongate shaft. The plurality of apertures may extend from an outer surface to an inner surface of the elongate shaft and be in fluid communication with the lumen. A port may be affixed to the proximal end of the elongate shaft and in fluid communication with the lumen.
摘要:
An interventional vascular therapeutic device (100) including a catheter shaft (110) having a pair of occlusion balloons (132, 134), a dilatation balloon (136) disposed on the catheter shaft between the occlusion balloons, a first inflation lumen (112) and a second inflation lumen (113) cofigured to supply inflation fluid to a proximally disposed one and a distal on of the occlusion balloons, a third inflation lumen (115) configured to supply inflation fluid to the dilatation balloon, a primary lumen (111) extending the entire length of the catheter configured to slidably receive a guidewire, and an infusion lumen (114) extending from a proximal end of the catheter shaft toward the distal end of the catheter shaft and terminating at an infusion exit port (140) located between the occlusion balloons. The device including an optical fiber (480) configured to be inserted into the primary lumen in exchange for the guidewire.
摘要:
Disclosed are balloon catheters for forming liquid cast biodegradable arterial stents. Typically, the balloon catheters include multiple balloons and multiple ports and include an element for promoting or initiating curing of a polymer solution via polymerization or cross-linking.
摘要:
A radioactive stent formed in a body lumen is provided. The radioactive stent includes an article shaped to provide support to a section of a body lumen and allow biological material which would otherwise flow through the body lumen to flow through the article, the article including a non-fluent stent composition containing a radioactive isotope with a short half-life in intimate contact with the section of the body lumen which was delivered through the body lumen to the section as a fluent pre-stent composition and transformed adjacent the section of the body lumen to the non-fluent stent composition.
摘要:
Изобретения относятся к устройствам, предотвращающим разрыв, обеспечивающим проходимость или предотвращающим сжатие трубчатых структур тела и способам формирования этих устройств. Изделие для формирования стента содержит, по меньшей мере, один гибкий модуль трубчатой формы, который включает каркас модуля и одну или несколько уплотняющих манжет. Каркас модуля и манжеты выполнены в виде полых каналов, выполненных с возможностью заполнения каналов жидкостью, затвердевающей после заполнения каналов. Внутренняя поверхность каркаса, содержит гибкие мембраны перекрывающие пространство, по меньшей мере, между отдельными каналами. При этом изделие выполнено с возможностью свертывания его в трубчатую форму и доставки в место установки стента. Способ формирования стента характеризуется тем, что изделие для формирования стента размещают в инструменте для введения изделия и формирования стента, при этом полые каналы изделия соединяют с, по меньшей мере, одним каналом инструмента для доставки затвердевающей жидкости. С помощью инструмента доставляют изделие в место формирования стента, размещают в месте установки стента и заполняют каналы трубчатой структуры и манжеты жидкостью, затвердевающей после заполнения каналов.
摘要:
Methods and devices for treating a luminal pathology affecting an anatomical lumen of a patient comprising forming, in situ, a continuous cohesive layer of covalently-crosslinked hydrogel in a luminal wall of the anatomical lumen.
摘要:
An expandable device, e.g. a stent for insertion into a passage, e.g. a blood vessel or artery, is disclosed. The device has a body (20) formed of a flexible material. The body is convertible from a collapsed condition in which it is of a size to be inserted into the passage into an expanded condition in which the body (20) is fixed relative to the passage. A passage (28) is provided within the body so as to extend over at least a region of the latter. An inlet (32) is provided in the body (20) in communication with the passage therein. The inlet (32) enables a rigidifying material to be introduced into the passage (28) in the body (20) so that at least the region of the body (20) in which the passage is provided can be rigidified whereby to maintain the body in its expanded condition.
摘要:
The present technology relates to modular valve replacement systems for treating valve-related cardiac disorders. In select embodiments, the modular valve replacement system includes a fixation device and a permanent valve assembly. The fixation device and the permanent valve assembly are delivered separately, enabling use of smaller delivery systems and facilitating less-invasive implant techniques. The fixation device is implanted first and provides a mounting fixture for the subsequently delivered permanent valve assembly. In some embodiments, the permanent valve assembly is at least partially mechanically isolated from the fixation device after the permanent valve assembly is attached to the fixation device. In some embodiments, the fixation device includes a temporary valve assembly that prevents regurgitation until the permanent valve assembly is implanted.