RU2019124732A - Системы и способы применения плетеного имплантата - Google Patents

Системы и способы применения плетеного имплантата Download PDF

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RU2019124732A
RU2019124732A RU2019124732A RU2019124732A RU2019124732A RU 2019124732 A RU2019124732 A RU 2019124732A RU 2019124732 A RU2019124732 A RU 2019124732A RU 2019124732 A RU2019124732 A RU 2019124732A RU 2019124732 A RU2019124732 A RU 2019124732A
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implant
braided
vessel
porosity
diameter
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RU2019124732A
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Роберт СЛЕЙЗЕС
Джеффри ПЕТЕРС
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Депуи Синтез Продактс, Инк.
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Publication of RU2019124732A publication Critical patent/RU2019124732A/ru

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    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
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Claims (36)

1. Плетеный имплантат, выполненный в виде перенаправителя потока для лечения аневризмы, причем имплантат содержит:
плетеную сетку, выполненную с возможностью поддержания по существу стабильной целевой пористости в суженном сосуде с диапазоном диаметров сосудов до 1 мм;
причем плетеная сетка выполнена с возможностью поддержания по существу стабильной целевой пористости между проксимальным и дистальным концами плетеной сетки при нахождении в суженном сосуде.
2. Имплантат по п. 1, в котором суженный сосуд имеет диаметр проксимального конца и диаметр дистального конца, которые отличаются на величину до 1 мм, причем диапазон диаметров сосудов до 1 мм определяется путем сравнения диаметров проксимального и дистального конца.
3. Имплантат по п. 1, в котором по существу стабильная целевая пористость составляет приблизительно 70%.
4. Имплантат по п. 1, в котором предварительно заданная длина между проксимальным и дистальным концами плетеной сетки в суженном сосуде составляет по меньшей мере 3 см.
5. Имплантат по п. 1, в котором предварительно заданная длина между проксимальным и дистальным концами плетеной сетки в суженном сосуде составляет по меньшей мере 1 см.
6. Имплантат по п. 1, в котором плетеный имплантат дополнительно содержит указанный диаметр сосуда, и причем плетеный имплантат выполнен таким образом, что указанный диаметр сосуда совпадает с пиком кривой пористости плетеного имплантата.
7. Имплантат по п. 6, в котором плетеный имплантат дополнительно содержит плато пористости, соответствующее радиальному диапазону 1 мм в диаметре сосуда, которое расположено около пика кривой пористости.
8. Имплантат по п. 6, в котором плетеный имплантат дополнительно содержит плато пористости, совпадающее с радиальным диапазоном 1 мм в диаметре сосуда, которое расположено около пика кривой пористости.
9. Имплантат по п. 1, в котором плотность пор плетеного имплантата составляет приблизительно от 18 до 23 пор/мм2.
10. Имплантат по п. 1, в котором плетеный имплантат имеет по существу цилиндрическую пористую структуру.
11. Имплантат по п. 1, в котором плетеный имплантат образован из множества одиночных прядей, состоящих по меньшей мере из первого материала и одного или нескольких рентгеноконтрастных многопрядных компонентов.
12. Имплантат по п. 1, в котором плетеный имплантат образован из множества многопрядных компонентов, образованных из монофиламентных элементов, каждый из которых расположен вместе с монофиламентными элементами, соответственно.
13. Система для лечения аневризмы, содержащая:
множество плетеных имплантатов, причем каждый плетеный имплантат содержит пористость, которая является по существу стабильной в диапазоне диаметров сосудов, отличающихся на 1 мм, причем каждый плетеный имплантат выполнен с возможностью обеспечения по существу стабильной пористости в диапазонах радиальных диаметров, отличающихся на 1 мм.
14. Система по п. 13, в которой плетеный имплантат выполнен с возможностью применения в суженном сосуде, причем суженный сосуд содержит диаметр проксимального конца и диаметр дистального конца, которые отличаются на величину до 1 мм, причем различие радиального диапазона в диаметре сосуда на 1 мм определяется путем сравнения диаметров проксимального и дистального конца.
15. Система по п. 13, в которой множество плетенных имплантатов содержит:
первый плетеный имплантат, выполненный с возможностью лечения сосудов с диаметрами в диапазоне от 2 до 3 мм;
второй плетеный имплантат, выполненный с возможностью лечения сосудов с диаметрами в диапазоне от 2,5 до 3,5 мм;
третий плетеный имплантат, выполненный с возможностью лечения сосудов с диаметрами в диапазоне от 3,0 до 4,0 мм;
четвертый плетеный имплантат, выполненный с возможностью лечения сосудов с диаметрами в диапазоне от 3,5 до 4,5 мм;
пятый плетеный имплантат, выполненный с возможностью лечения сосудов с диаметрами в диапазоне от 4,0 до 5,0 мм; и
шестой плетеный имплантат, выполненный с возможностью лечения сосудов с диаметрами в диапазоне от 4,5 до 5,5 мм;
причем пористость каждого плетеного имплантата находится в диапазоне от 65% до 70%.
16. Система по п. 15, в которой каждый плетеный имплантат содержит плотность пор в диапазоне от приблизительно 18 до 23 пор/мм2.
17. Система по п. 13, в которой каждый из множества плетеных имплантатов смещен относительно друг друга приблизительно на половину радиального диапазона диаметров сосудов следующего наименьшего плетеного имплантата из множества плетеных имплантатов.
18. Способ лечения аневризмы, включающий:
определение диаметра сосуда, ассоциированного с сосудом, имеющим аневризму;
выбор одного из множества плетеных имплантатов для лечения сосуда, причем каждый плетеный имплантат содержит пористость, по существу стабильную для диапазона диаметров сосудов до 1 мм, причем каждый плетеный имплантат выполнен с возможностью обеспечения по существу стабильной пористости по разным диапазонам диаметров сосудов; и
лечение сосуда одним из множества плетеных имплантатов.
19. Способ по п. 18, в котором сосуд является суженным, и суженный сосуд содержит проксимальный диаметр и дистальный диаметр, которые отличаются на величину до 1 мм, причем определение диаметра сосуда содержит сравнение диаметров проксимального и дистального конца, причем способ дополнительно содержит:
поддержание по существу стабильной пористости по всему суженному сосуду.
20. Способ по п. 18, в котором лечение сосуда содержит:
продвижение плетеного имплантата к аневризме; и
восстановление кровотока в сосуде путем исключения аневризмы и перенаправления кровотока от аневризмы с помощью одного из множества плетеных имплантатов.
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US20220087837A1 (en) 2022-03-24
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AU2019213303A1 (en) 2020-02-20
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