SU942736A1

SU942736A1 - Blood vessel multichannel prosthesis

Info

Publication number: SU942736A1
Application number: SU802882133A
Authority: SU
Inventors: Александр Владимирович Чарковский; Лев Александрович Кудрявин; Владимир Николаевич Филатов; Николай Иванович Захаров
Original assignee: Всесоюзный научно-исследовательский институт текстильно-галантерейной промышленности; Витебский технологический институт легкой промышленности; Московский Ордена Трудового Красного Знамени Текстильный Институт
Priority date: 1980-02-12
Filing date: 1980-02-12
Publication date: 1982-07-15

Description

.(5) МНОГОКАНА ПЬНЫЙ ПРОТЕЗ КРОВЕНОСНОГО СОСУДА. (5) A MULTI-PURPOSE PUNCHED PROSTHIDE OF THE BLOOD VESSEL

Изобретение относитс к медицинекой технике, а именно к многоканальным основов занным протезам кровеносных сосудов и к их производству. The invention relates to medical technology, namely to multichannel basics of prosthetic blood vessels and to their production.

Известны многоканальные протезы кровеносных сосудов, содержащие основной канал и ответвлени .Multichannel blood vessel prostheses are known, containing the main canal and branches.

В готовом к использованию протезе ответвлени должны быть наклонены к продольной оси основного канала. Поэтому полуфабрикат протеза после в зани необходимо подвергать формованию с последующей фиксацией приданной формы.In a prosthesis ready for use, the branches should be inclined to the longitudinal axis of the main canal. Therefore, the semi-finished prosthesis after the wedge must be molded with the subsequent fixation of the given shape.

Известен многоканальный протез кровеносного сосуда, содержащий основной канал и ответвлени , выполненные в виде трубчатого трикотажа, петли которого имеют односторонние прот жки f1.A multichannel prosthesis of a blood vessel is known, comprising a main canal and branches, made in the form of a tubular jersey, the loops of which have one-sided stretches f1.

В таком протезе одинарные полотна основного канала и ответвлений образованы двухгребеночными переплетени ми , например, трико - трико илиIn such a prosthesis, the single canals of the main channel and branches are formed by two-child interlacing, for example, tights - tights or

сукно-трико, и по сн тию с в зальной машины продольные оси ответвлений параллельны продольной оси основного канала.cloth and tricot, and according to the in the filling machine, the longitudinal axes of the branches are parallel to the longitudinal axis of the main channel.

Это вл етс существенным недостатком , так как необходима специальна операци по приданию протезу требуемой формы. Кроме того, при формовании одни участки протеза раст - ,This is a significant disadvantage, since a special operation is needed to give the prosthesis the desired shape. In addition, when forming some areas of the prosthesis stretch,

Q гиваютс , а другие получают усадку, что нарушает равномерность петельной структуры и ухудшает качество протеза .Q shrinks and others shrink, which disturbs the uniformity of the looped structure and impairs the quality of the prosthesis.

Цель изобретени - повышение моустойчивости протеза.The purpose of the invention is to increase the resistance of the prosthesis.

Поставленна цель достигаетс тем, что односторонние прот жки петель трубчатых трикотажных ответвлений выполнены во всех петельных р дах,The goal is achieved by the fact that one-sided stretches of the loops of tubular knitted branches are performed in all looped rows,

Claims

20, the loops in each branch are located relative to the loops on the side opposite to the location of the branch with respect to the main channel. Figure 39 shows diagrams of single canals of the main channel and forks. The prosthesis of a blood vessel A, B, C, D, D, E, F, 3, I contains the basics, channels A, B, C, D and branches D, D, E, F and F, 3, I, A, consisting of two single canvases connected along the edges I, A, B; 3, F; F, E, D, G, B. The hinges of single canvases of branches G, D, E, F, and F, 3, I, and A have one-sided runs directed in all looped rows in the same direction as. In this case, the loops of the right branch G, 3, I, A (in the direction of the arrow K are directed to the left side, and the left branch of D, E, E, G to the right. It is known that the skeletons of the basics of the loops The vehicle rotates in the direction opposite to that of the skeleton under the action of the elastic forces of the thread. Therefore, the cores of the left branch loops tilt sprucely, and npiasoro branching times right, relative to the axis 0-0 of the main channel, A, B, C, G. in the low of such a multichannel prosthesis blood 1 of the vessel includes, on a double-bottom base of the filling machine, single webs of main threads and connecting them along the edge hinge columns with additional threads, and when looping single webs of branches in the first cycle of movement of the loop-forming organs of the thread, after laying them on needles, the old one In the second cycle, they are knitted into loops. In such a case, with knitted yarns of threads, knitted fabric is formed, the loops of which have unilateral stretches directed in all looped rows in one in the same direction. Single canals of the main channel and branches can be formed from one, two or more systems of threads (in the drawing, single canals of the main channel are formed by two systems of threads, weaving cloth and tights, and single canvases of each of the branches - by one system of threads. Due to the need the shape of this prosthesis is communicated in the process of undercut, the need for a special forming operation is eliminated and its quality is improved by increasing the uniformity of the looped structure. a canal prosthesis of a blood vessel, containing the main canal and branches, made in the form of tubular knitwear, the loops of which have one-sided stretches, which are characterized by the fact that, in order to improve the shape-stability, By this, the loop loops in each branch are located relative to the loops on the side opposite to the branch arrangement with respect to the main channel. Sources of information taken into account in examination 1, Patent of France No. 206k228, cl. A 61 F 1/00, 1971.