CN220293714U

CN220293714U - Brain indoor flow guiding bracket

Info

Publication number: CN220293714U
Application number: CN202321272829.8U
Authority: CN
Inventors: 张家墅; 陈晓雷; 王群; 徐兴华
Original assignee: First Medical Center of PLA General Hospital
Current assignee: First Medical Center of PLA General Hospital
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2024-01-05
Anticipated expiration: 2033-05-24

Abstract

The utility model provides an intra-ventricular flow guiding bracket, which comprises a tube body with a reticular structure; the tube body is formed to be curved in its extending direction with a predetermined curvature to accommodate the physiological curvature of the intra-ventricular canal. The radian is 10-30 degrees. At least one end of the tube body is provided with a circular arc-shaped curled edge so as to avoid damaging the inner wall of the channel in the placing process. The rounded bead forms a curl toward the interior of the tube body. The intra-ventricular flow guiding bracket improves the compliance of the bracket relative to the channel in the brain chamber by forming the radian corresponding to the physiological curvature of the channel in the brain chamber, so that the bracket is easy to place on one hand, the physiological anatomical shape at the position can not be changed due to the placement of the bracket on the other hand, and the surrounding tissues can not be pressed. In addition, the end part of the intraventricular flow guiding bracket forms a curled edge, and even if the end part contacts with the inner wall of the channel in the placing process, the end part is in blunt contact, so that the damage to the inside of the channel is avoided.

Description

Brain indoor flow guiding bracket

Technical Field

The utility model relates to a medical apparatus, in particular to an intra-ventricular flow guiding bracket.

Background

After adhesion occurs locally in the ventricle system, cerebrospinal fluid is not smooth to circulate, effusion can be generated locally, and the phenomenon similar to a barrier lake is caused, and at the moment, the adhesion part needs to be opened by an instrument. The probability of re-adhesion after the opening is very high, so that the bracket is usually required to be put into after the adhesion part is opened, the opening position is rigidly supported, the collapse of the channel and the re-adhesion are avoided, and the long-term smoothness of the circulation path of cerebrospinal fluid is maintained. These passages of the ventricular system typically have a degree of physiological curvature, such as lateral ventricular triangle, lateral ventricular frontal angle. The physiological curvature of the lateral ventricular triangle is typically 10 ° -30 °. The existing bracket is generally linear, has poor compliance to the physiological curvature of the channels in the brain chamber, can cause local anatomical position displacement and can cause certain compression to peripheral tissues; in addition, when a linear stent is placed, the sharp edge at the front end of the linear stent is easy to stab into the tissue on the inner wall of the channel to cause damage.

Disclosure of Invention

In view of the above, the present utility model aims to provide an intra-ventricular flow guiding stent having a predetermined curvature and a better compliance with respect to a passage in a brain chamber; in addition, the utility model also aims to provide an intra-ventricular flow guiding bracket which can avoid damaging the inner wall of a channel in the placing process.

The utility model relates to an intra-ventricular flow guiding bracket which comprises a tube body with a net-shaped structure; the tube body is formed to be curved in its extending direction with a predetermined curvature to accommodate the physiological curvature of the intra-ventricular canal.

Preferably, the arc is 10 ° -30 °.

Preferably, at least one end of the tube body is formed with a rounded bead to avoid damaging the inner wall of the channel during placement.

Preferably, the rounded bead forms a curl towards the interior of the tube body.

The intra-ventricular flow guiding bracket improves the compliance of the bracket relative to the channel in the brain chamber by forming the radian corresponding to the physiological curvature of the channel in the brain chamber, so that the bracket is easy to place on one hand, the physiological anatomical shape at the position can not be changed due to the placement of the bracket on the other hand, and the surrounding tissues can not be pressed. In addition, the end part of the intraventricular flow guiding bracket forms a curled edge, and is in blunt contact with the inner wall of the channel even if the end part is in contact with the inner wall of the channel in the placing process, so that the inner wall of the channel is prevented from being damaged.

Drawings

FIG. 1 is a schematic diagram of the front view of an intra-ventricular flow stent of the present utility model;

fig. 2 is a schematic cross-sectional view of the intraventricular stent of fig. 1.

Detailed Description

The intraventricular baffle stent of the present utility model will be described in detail with reference to the drawings.

The utility model relates to an intra-ventricular flow guiding bracket which comprises a tube body 1 with a net-shaped structure, wherein the material of the tube body 1 is the same as that of a common bracket and can be nickel-titanium alloy.

The tube body 1 is formed to be curved in the extending direction thereof with a predetermined curvature to accommodate the physiological curvature of the intra-ventricular canal. The radian can be 10 degrees to 30 degrees, and the bracket with proper radian can be manufactured into various specifications so as to be selected according to specific needs.

At least one end of the tube body 1 is formed with a rounded bead 2 to avoid damaging the inner wall of the channel during placement.

The rounded bead 2 forms a curl towards the inside of the tube body 1, as shown in fig. 2.

When in use, firstly, the device is used for opening the adhesion part in the brain chamber; then, one end with the curled edge of the intra-cerebral-chamber flow guiding bracket is firstly inserted into a pre-opened channel, and then the other end of the intra-cerebral-chamber flow guiding bracket is operated by using an instrument, so that the whole bracket is gradually inserted into the channel. Because the bracket has radian which is suitable for the physiological curvature of the channel, the insertion process is smooth, and the physiological anatomy of the placement position is not shifted after the bracket is placed, and the surrounding tissues are not pressed. The arc-shaped curled edge design ensures that the front end of the bracket is not easy to damage the inner wall of the channel.

Claims

1. An intra-ventricle flow guiding bracket is used for a passage in a brain chamber to prevent the opened passage from being adhered again and comprises a tube body with a net-shaped structure; the device is characterized in that the tube body is formed to be bent in the extending direction and has a preset radian so as to adapt to the physiological curvature of the intra-ventricular canal;

at least one end of the pipe body is provided with a circular arc-shaped curled edge so as to avoid damaging the inner wall of the channel in the placing process; the rounded bead forms a curl toward the interior of the tube body.

2. An intra-ventricular flow directing stent as claimed in claim 1, wherein:

the radian is 10-30 degrees.