SU904715A1

SU904715A1 - Apparatus for inserting catheter

Info

Publication number: SU904715A1
Application number: SU782606007A
Authority: SU
Inventors: Владимир Николаевич Савицкий
Original assignee: За витель (S) УСТРОЙСТВО ДЛЯ ВВЕДЕНИЯ КАТЕТЕРА
Priority date: 1978-04-20
Filing date: 1978-04-20
Publication date: 1982-02-15

Description

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Изобретение относитс к области медицины, в частности к устройствам, служащим дл проведени катетера через пункционную иглу.This invention relates to the field of medicine, in particular, to devices that guide a catheter through a puncture needle.

Обычно после пункцииобъекта иглой катетер сквозь ее просвет проводитс вручную, без помощи приспособлений. Затем игла при пальцевой фиксации катетера извлекаетс 1 .Usually, after a needle has been punctured by a needle, a catheter is guided through its lumen manually, without the aid of devices. Then, the needle is removed during catheter pin fixation.

Введение катетера на строго определенную глубину возможно лишь при его маркировке.Introduction of a catheter to a strictly defined depth is possible only with its marking.

Известно устройство дл введени катетера, содержащее пункционную иглу и направитель, представл ющий разрезную коническую пластмассовую втулку, вмонтированную в канюлю И1- лы и работающую таким образом, что катетер может продвигатьс только вперед 121.A device for insertion of a catheter is known, comprising a puncture needle and a guide, which is a split tapered plastic sleeve mounted in the cannula of Illa and operating in such a way that the catheter can only move forward 121.

Возможности введени немаркированного катетера на строго определенную глубину и предотвращени его обратного смещени при извлеченииThe possibility of inserting an unmarked catheter to a strictly defined depth and preventing its reverse bias when removing

ИГЛЫ из тканей это устройство не обеспечивает.NEEDLES from fabrics this device does not provide.

Целью изобретени вл етс обеспечение возможности введени немаркированного катетера на строго определенную глубину и предотвращение обратного смещени катетера при извлечении иглы из тканей.The aim of the invention is to make it possible to introduce an unmarked catheter to a strictly defined depth and to prevent the catheter from moving backward when the needle is removed from the tissue.

Указанна цель достигаетс тем, что в устройстве дл введени катетера , содержащем пункционную иглу и направитель, последний выполнен в виде вводимой в пункционную иглу трубки , консольно закрепленной на кронштейне , снабжённом упором, при этом рассто ние между упором и местом креплени трубки больше длины пункционной иглы.This goal is achieved by the fact that in the device for inserting a catheter containing a puncture needle and a guide, the latter is made in the form of a tube inserted into a puncture needle, cantilever-mounted on a bracket equipped with a stop, the distance between the stop and the tube attachment point being longer than the puncture needle. .

Дл повышени удобства пользовани кронштейн снабжен шкалой дл отмеривани заданной длины катетера.To improve ease of use, the bracket is provided with a scale for measuring a predetermined length of the catheter.

Claims

Fig. 1-1 shows the proposed device, a general view, as applied to the catheterization of the epidural 39 G1 | 1 center "1; in fig. 2 - - device wiring diagram. The device for insertion of the catheter comprises a tube 1, which by end 2 is cantilevered connected by an arm 3 to an arm 4 having an emphasis 5. The bracket is provided with a scale, starting from an emphasis 5, and has a groove for placing the catheter during its measurement. The device is used as follows. The object is punctured with a marked needle 6. Depending on the depth of the object, the required length of the catheter is measured on a scale (for example, if the depth of the object is 5 cm, the depth of insertion of the catheter relative to the needle is cm; the length of the measured catheter is 9 cm). Fix the catheter at the outer end of the tube with your finger, the catheter with the tube is inserted into the needle lumen, until the stop 5 comes into contact with the outer tissues 7 (Fig. 3). Then, keeping this position of the device, the needle is removed, putting it on the tube until it stops in the arch 3 (Fig.). Next, remove the fixation at the outer end of the tube, the catheter is fixed with the fingers of the outer tissue (Fig.), Then the needle with the device removed from the catheter. The catheter is fixed to the outer tissue, for example, using adhesive plaster. The presence of a scale on the brackets, fixation of the device to the outer tubes, fixation of the catheter in it during catheterization, retrieval and removal of the needle allow inserting the unmarked catheter to a strictly defined depth and prevent its reverse displacement. Claim 1. Device for insertion of a catheter containing a puncture needle and a guide, characterized in that, in order to provide a predetermined depth of puncture catheterization, the guide is made in the form of a tube inserted into the needle of a needle provided with an emphasis, while the distance between the stop and the place of attachment of the tube is greater than the length of the puncture needle. 2. The device according to claim 1, about tl and -, so that, in order to increase usability, the bracket is equipped with a scale for measuring a predetermined length of the catheter. Sources of information taken into account in the examination 1. Schelkunov B.C. Peridural anesthesia. L., Medicine, 1976, p. 6k, 70-71, 73.

2. US patent number 3903885, CL.128-2Y ,, published. 1975 (prototype).

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