SU1457921A1 - Self-fixing prosthesis of blood vessel - Google Patents

Self-fixing prosthesis of blood vessel

Info

Publication number
SU1457921A1
SU1457921A1 SU874208828A SU4208828A SU1457921A1 SU 1457921 A1 SU1457921 A1 SU 1457921A1 SU 874208828 A SU874208828 A SU 874208828A SU 4208828 A SU4208828 A SU 4208828A SU 1457921 A1 SU1457921 A1 SU 1457921A1
Authority
SU
USSR - Soviet Union
Prior art keywords
prosthesis
elastic
blood vessel
rods
self
Prior art date
Application number
SU874208828A
Other languages
Russian (ru)
Unknown language (xx)
Inventor
Николай Леонтьевич Володось
Василий Егорович Шеханин
Иван Павлович Карпович
Владимир Иванович Троян
Original Assignee
Харьковский научно-исследовательский институт общей и неотложной хирургии
Производственное объединение "Харьковский моторостроительный завод "Серп и молот"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Харьковский научно-исследовательский институт общей и неотложной хирургии, Производственное объединение "Харьковский моторостроительный завод "Серп и молот" filed Critical Харьковский научно-исследовательский институт общей и неотложной хирургии
Priority to SU874208828A priority Critical patent/SU1457921A1/en
Application granted granted Critical
Publication of SU1457921A1 publication Critical patent/SU1457921A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/04Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06Blood vessels
    • A61F2/07Stent-grafts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/04Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06Blood vessels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/89Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2002/825Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having longitudinal struts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0075Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable

Abstract

Изобретение относитс к медицине и позвол ет предупредить миграцию протеза кровеносного сосуда путем снабжени его дополнительным фиксирующим элементом 4, размещенным вне эластичной оболочки 1 и соединенным с основным фиксирующим элементом 3, закрепленным на внутренней стенке оболочки 1 посредством упругих стержней 5. Обща высота дополнительного и основного фиксирующих элементов 3 и 4, а также упругих стержней 5 вдоль оси протеза составл ет не менее Id, где d - внутренний диаметр сосуда. The invention relates to medicine and permits prevent migration of the prosthesis through a blood vessel supplying of additional fixing member 4 is disposed an elastic membrane 1 and connected to the main fixing member 3 fixed to the inner wall of the shell 1 by means of resilient rods 5. The overall height of the main and additional fixing members 3 and 4, as well as elastic rods 5 along the axis of the prosthesis is not less than Id, where d - diameter of the inner vessel. Упругие .стержни выполн ютс пр мыми или изогнутыми в сторону оси протеза. Elastic .sterzhni performed are straight or curved in the direction of the axis of the prosthesis. 2 ил. 2 yl. (Л сд со 1C (L sd with 1C

Description

Изобретение относитс к медицинсной технике и касаетс непосредственно усовершенствовани самофиксирующегос протеза кровеносного сосуда, используемого дл замещени пораженных участков аорты и магистральных артерий при аневризмах, атеросклерозе , ранении или расслаивании. The invention relates to meditsinsnoy art and relates directly improvements samofiksiruyuschegos blood vessel prosthesis used to replace damaged areas of major arteries and aorta aneurysms, atherosclerosis, wound or peeling.

Целью изобретени вл етс предупреждение миграции протеза. The aim of the invention is a warning prosthesis migration.

На фиг. FIG. 1 изображен протез кровеносного сосуда, общий вид; 1 shows a blood vessel prosthesis, general view; на фиг. FIG. 2 - схема раз- мещени протеза в сосуде. 2 - scheme of different displacements of the prosthesis in the vessel.

Протез состоит из эластичной оболочки 1, на внутренней поверхности которой нит ми 2 закреплен основной фиксирующий элемент 3, выполненный в виде плоской изогнутой пружины зигзагообразной формы, свернутой в кольцо. The prosthesis consists of an elastic shell 1, on the inner surface of which yarns 2 fixed basic fixing element 3 made as a curved flat spring forms a zigzag, folded into a ring. Высота этого элемента выбираетс в зависимости от длины здорового сегмента сосуда, в который он устанавливаетс и не превышает его. The height of this member is selected depending on the length of the healthy vessel segment in which it is installed and does not exceed it. Протез снабжен также до- полнительным фиксирующим элементом 4, выполненным по форме, аналогичной основному элементу 3, и соединенным с ним посредством упругих стержней 5. Дополнительный фиксирующий элемент 4 и упругие стержни 5 размещены вне оболочки. The prosthesis is also provided An additional fixing member 4, made by a form similar to base member 3 and connected thereto by elastic rods 5. Additional retaining member 4 and the elastic rods 5 are positioned outside the shell. Обща высо- та Я обоих фиксирующих элементов и соедин ющих их упругих стержней 5 состав- .лйот ие менее 2d, где d - внутренний диаметр оболочки. The overall high-I that both fixing elements and their connecting the elastic rods 5 sostav- .lyot s less 2d, where d - diameter of the inner shell. В свою очередь длина упругих стержней 5 выбираетс в зависимости от .конфигурации сосуда. In turn, the length of the elastic rods 5 is selected depending on .konfiguratsii vessel. Выполнение высоты Н фиксирующих элементов и упругих стержней менее 2d не обеспечивает устойчивого размещени протеза и не предотвращает его от опрокидывани . Performing the height H of the locking elements and the elastic rods less 2d does not provide stable positioning of the prosthesis and prevent it from tipping. Оптимальное количество The optimum amount of

упругих стержней - два, диаметрально расположенные один относительно другого. elastic rods - two diametrically positioned relative to one another.

Протез устанавливают следующим образом . A prosthesis set as follows.

Перед установкой оболочку 1 вместе с основным 3 и дополнительным 4 фиксирующими элементами сжимают в радиальном направлении до минимально возможного сечени и устанавливают во внутреннюю полость катетера, который ввод т в необходимый сегмент сосуда. Before installing the casing 1 together with the main 3 and auxiliary 4 locking elements radially compressed to the smallest possible section, and set the internal cavity of the catheter, which is introduced in the desired segment of the vessel. При выводе катетера из сосуда и одновременном удержании протеза неподвижным происходит распр мг ление оболочки протеза под действием фиксирующих элементов 3 до полного контакта ее со стенками сосуда. In the derivation of the catheter from the receptacle and fixed while holding prosthesis occurs camshaft mg Leniye prosthesis sheath under the action of the retaining elements 3 to its full contact with the vessel walls. Основной фиксирующий элемент 3, окруженный каркасом протеза , контактирует с коротким неизмененным участком сосуда, а дополнительный при этом контактирует с внутренней стенкой сосуда вне оболочки протеза. The main locking member 3 surrounded by the frame of the prosthesis in contact with the short portion of the vessel unaltered, and wherein the additional contacts with the inner wall of the vessel outside of the prosthesis shell.

Формула, изобретени The formula of the invention

Самофиксирующийс протез кровеносного сосуда, состо щий из эластичной оболочки с размещенным в ней фиксирующим элементом , выполненным в виде плоской изогнутой пружины зигзагообразной формы, отличаю(цийс тем, что, с целью предупреждени миграции протеза, он снабжен дополнительным фиксирующим элементом аналогичной формы, который размещен вне оболочки и соединен с ней посредством упругих стержней, при этом обща высота фиксирующих элементов с упругими стержн ми вдоль оси протеза составл ет не менее 2d, где d - внутренний диаметр оболочки. Samofiksiruyuschiys prosthetic blood vessel, consisting of an elastic shell disposed therein a fixing element in the form of a flat curved spring zigzag shape, wherein (tsiys in that in order to prevent prosthesis migration, it is provided with an additional locking element similar form, which is placed outside the shell and connected thereto by elastic rods, the overall height of the retaining elements with resilient rods along the axis of the prosthesis is at least 2d, where d - diameter of the inner shell.

SU874208828A 1987-03-10 1987-03-10 Self-fixing prosthesis of blood vessel SU1457921A1 (en)

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SU874208828A SU1457921A1 (en) 1987-03-10 1987-03-10 Self-fixing prosthesis of blood vessel

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Авторское свидетельство СССР № 1217402, кл. А 61 F 2/06, 1984. ffJUS.I *

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