阅读说明：本技术 一种球囊导管支架 (Sacculus pipe support ) 是由 不公告发明人 于 2020-08-21 设计创作，主要内容包括：本发明涉及医疗器械技术领域,尤其是涉及一种球囊导管支架。包括导管、球囊、连接管、接口及支架本体,支架本体包括第一连接杆、第二连接杆及弹性杆,弹性杆的端部分别可旋转的设置于第一连接杆及第二连接杆上。本发明通过设置于第一连接杆及第二连接杆,且在在第一连接杆及第二连接杆设有若干与其可旋转设置的弹性杆,使得在使用前,弹性杆与第一连接杆及第二连接杆之间成锐角,以减小其占用体积,方便将其安装至血管内,在安装后,通过球囊带动弹性杆,使得弹性杆驱动第二连接杆,以便使得弹性杆与第一连接杆及第二连接杆之间成直角,方便进行径向扩张。(The invention relates to the technical field of medical instruments, in particular to a balloon catheter support. The balloon stent comprises a catheter, a balloon, a connecting pipe, a connector and a stent body, wherein the stent body comprises a first connecting rod, a second connecting rod and an elastic rod, and the end parts of the elastic rod are respectively and rotatably arranged on the first connecting rod and the second connecting rod. According to the invention, the elastic rods are arranged on the first connecting rod and the second connecting rod, and the plurality of elastic rods which can be rotatably arranged with the first connecting rod and the second connecting rod are arranged on the first connecting rod and the second connecting rod, so that before use, the elastic rods form acute angles with the first connecting rod and the second connecting rod, the occupied volume of the elastic rods is reduced, the elastic rods are convenient to install in blood vessels, after installation, the elastic rods are driven by the balloon, the elastic rods drive the second connecting rod, so that the elastic rods form right angles with the first connecting rod and the second connecting rod, and radial expansion is convenient.)

1. A balloon catheter stent characterized by: the stent comprises a catheter, a balloon arranged at one end of the catheter, a connecting pipe arranged at the other end of the catheter, a connector and a stent body arranged on the balloon;

wherein a catheter is in communication with the interior of the balloon; the conduit is communicated with the inside of the connecting pipe; the interface is arranged on one side of the conduit and communicated with the interior of the conduit;

the bracket body comprises a first connecting rod arranged on one side of the balloon, a second connecting rod arranged on the other side of the balloon, and a plurality of elastic rods arranged between the first connecting rod and the second connecting rod; the first connecting rod is parallel to the central axis of the balloon and is hollow, a first magnet and a second magnet are arranged on the first connecting rod, the first magnet and the second magnet are fixed on one side, close to the balloon, of the outer surface of the first connecting rod and are positioned between the first connecting rod and the second connecting rod, and the magnetic poles of one end, close to the second connecting rod, of the first magnet and one end, close to the second connecting rod, of the second magnet are opposite; the second connecting rod is arranged on the other side of the balloon, the balloon is arranged between the first connecting rod and the second connecting rod, the second connecting rod is hollow, a third magnet and a fourth magnet are arranged on the second connecting rod, the third magnet and the fourth magnet are fixedly connected to one side, close to the balloon, of the outer surface of the second connecting rod and are arranged between the first connecting rod and the second connecting rod, magnetic poles of ends, close to the first connecting rod, of the third magnet and the fourth magnet are opposite, and magnetic poles of opposite ends of the third magnet and the first magnet are the same; a plurality of elastic rods are symmetrically arranged; the symmetry sets up to a set of around the elastic rod, and wherein the tip of every elastic rod sets up connecting portion, the connecting portion of elastic rod one end run through the interior external surface of head rod just stretches into in the head rod, connecting portion with head rod sliding contact, the connecting portion of the elastic rod other end run through the interior external surface of second connecting rod just stretches into in the second connecting rod, the elastic rod with second connecting rod sliding contact.

2. The balloon catheter stent of claim 1, wherein: the first connecting rod is adhered to the outer surface of the balloon, and the second connecting rod abuts against the outer surface of the balloon.

3. The balloon catheter stent of claim 1, wherein: two elastic rods which are opposite in a front-back mirror image mode of the first connecting rod and the second connecting rod extend into the connecting parts inside the second connecting rod to be connected with each other.

4. The balloon catheter stent of claim 1, wherein: the elastic rod is integrally formed with the connecting parts at the two ends of the elastic rod or fixedly connected with the connecting parts.

5. The balloon catheter stent of claim 1, wherein: a connecting ball is arranged in the joint of the first connecting rod and the elastic rod, and the connecting part of the elastic rod is fixedly connected with the corresponding connecting ball; a spring is arranged in the connecting ball, one end of the spring is fixed in the connecting ball, the other end of the spring is fixed with a clamping rod, and the clamping rod extends out of the connecting ball and is abutted against the inner wall of the first connecting rod; and a plurality of grooves are formed in one side of the inner wall of the first connecting rod, which is far away from the spherical sac, are positioned on the same horizontal plane with the connecting balls and are formed by radially and outwardly sinking the inner surface of the first connecting rod.

6. The balloon catheter stent of claim 1, wherein: an accommodating groove is formed in the connecting ball, the spring is accommodated in the accommodating groove, and one end of the spring is fixedly connected with the side face of the accommodating groove; one end of the buckle rod is accommodated in the accommodating groove and is fixedly connected with the other end of the spring, and the other end of the buckle rod abuts against the inner surface of the first connecting rod and is in sliding contact with the first connecting rod.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a balloon catheter support.

Background

When the existing diseases such as arterial stenosis and arteriovenous thrombosis are treated, the balloon catheter support is mainly used for interventional treatment, balloon dilatation is carried out after the balloon catheter reaches a lesion part, and a blood vessel blocked by stenosis is restored to be a channel, so that smooth circulation of blood is ensured. However, the existing balloon catheter stent mainly depends on the woven mesh as a stent to play a supporting role, the axial length of the woven mesh is shortened when the woven mesh is radially expanded, the axial length cannot be ensured to be the required length, and the effect of supporting blood vessels is influenced; when the mesh grid is used as a support to support for a long time, the caliber of the mesh grid is easy to shorten, so that the caliber of the blood vessel is reduced, the effect of expanding the blood vessel is influenced, and the service life of the mesh grid is shortened.

Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to solve the technical problems that the existing balloon catheter support mainly depends on a woven mesh as a support to play a supporting role, the axial length of the woven mesh is shortened when the woven mesh is radially expanded, the axial length cannot be ensured to be the required length, and the effect of supporting blood vessels is influenced; when the mesh grid is used as a support to support for a long time, the caliber of the mesh grid is easy to shorten, so that the caliber of the blood vessel is reduced, the effect of expanding the blood vessel is influenced, and the service life of the mesh grid is shortened.

In order to solve the above problems, the present invention provides a balloon catheter stent, wherein a plurality of elastic rods rotatably disposed with respect to a first connecting rod and a second connecting rod are disposed on the first connecting rod and the second connecting rod, so that before use, the elastic rods form acute angles with the first connecting rod and the second connecting rod, thereby reducing the occupied volume thereof, facilitating installation thereof into a blood vessel, and after installation, the elastic rods are driven by a balloon to drive the second connecting rod, thereby forming right angles with the first connecting rod and the second connecting rod, facilitating radial expansion.

In order to achieve the purpose of the invention, the following technical scheme is adopted:

a sacculus catheter bracket comprises a catheter, a sacculus arranged at one end of the catheter, a connecting pipe arranged at the other end of the catheter, a connector and a bracket body arranged on the sacculus;

the catheter is communicated with the interior of the balloon, the balloon is made of elastic materials such as rubber and the like, and when the balloon is blown into the balloon, the balloon can be expanded so as to drive the stent body to stretch along with the balloon, so that the stent body is abutted against the inner wall of a blood vessel to support the blood vessel; the catheter is communicated with the inside of the connecting pipe, a through hole with the same diameter as the guide wire is formed in the connecting pipe, the guide wire can be arranged in the catheter through the connecting pipe and used for transporting the stent to the corresponding position of the blood vessel, and meanwhile, the opening of the connecting pipe is sealed by the guide wire; the interface is arranged on one side of the catheter, the interface is communicated with the interior of the catheter, the balloon is inflated through the air injection of the interface, so that the expansion of the stent body is driven, the balloon is deflated afterwards, the balloon is taken out, and the stent is remained in the blood vessel.

The bracket body comprises a first connecting rod arranged on one side of the balloon, a second connecting rod arranged on the other side of the balloon, and a plurality of elastic rods arranged between the first connecting rod and the second connecting rod; the first connecting rod is parallel to the central axis of the balloon and is hollow, a first magnet and a second magnet are arranged on the first connecting rod, the first magnet and the second magnet are fixed on one side, close to the balloon, of the outer surface of the first connecting rod and are positioned between the first connecting rod and the second connecting rod, and the magnetic poles of one end, close to the second connecting rod, of the first magnet and one end, close to the second connecting rod, of the second magnet are opposite; the second connecting rod is arranged on the other side of the balloon, the balloon is arranged between the first connecting rod and the second connecting rod, the second connecting rod is hollow, a third magnet and a fourth magnet are arranged on the second connecting rod, the third magnet and the fourth magnet are fixedly connected to one side, close to the balloon, of the outer surface of the second connecting rod and are arranged between the first connecting rod and the second connecting rod, magnetic poles of ends, close to the first connecting rod, of the third magnet and the fourth magnet are opposite, and magnetic poles of opposite ends of the third magnet and the first magnet are the same; a plurality of elastic rods are symmetrically arranged; before the installation, the contained angle between the elastic rod and the first connecting rod and the contained angle between the second connecting rod are acute angles, and after the installation, the contained angle between the elastic rod and the first connecting rod and the contained angle between the second connecting rod are right angles. The symmetry sets up to a set of around the elastic rod, and wherein the tip of every elastic rod sets up connecting portion, the connecting portion of elastic rod one end run through the internal and external surface of head rod just stretches into in the head rod, connecting portion with head rod sliding contact, the connecting portion of the elastic rod other end run through the internal and external surface of second connecting rod just stretches into in the second connecting rod, the elastic rod with second connecting rod sliding contact makes the elastic rod can rotatory on head rod and the second connecting rod. So far, can realize, when the sacculus shrink, utilize magnet control head rod and second connecting rod to be the acute angle setting, after reacing the assigned position, the sacculus inflation drives the elastic rod and stretches, and under the effect of the radial pressure of sacculus simultaneously, the connection of elastic rod is rotatory, overcomes the suction of magnet, and the second connecting rod downstream this moment, the elastic rod with contained angle between head rod and the second connecting rod is the right angle, and the support stretches, plays the effect of expansion blood vessel.

Further, the first connecting rods are adhered to the outer surface of the balloon, and the second connecting rods abut against the outer surface of the balloon.

Furthermore, the two elastic rods which are opposite in a front-back mirror image mode and the first connecting rod and the second connecting rod extend into the connecting parts inside the second connecting rod to be fixedly connected with each other.

Furthermore, the elastic rod and the connecting parts at the two ends of the elastic rod are integrally formed or fixedly connected with each other.

Furthermore, a connecting ball is arranged in the joint of the first connecting rod and the elastic rod, and the connecting part of the elastic rod is fixedly connected with the corresponding connecting ball; a spring is arranged in the connecting ball, one end of the spring is fixed in the connecting ball, the other end of the spring is fixed with a clamping rod, and the clamping rod extends out of the connecting ball and is abutted against the inner wall of the first connecting rod; a plurality of grooves are formed in the inner wall of the first connecting rod and at one side of the far spherical bag, are positioned on the same horizontal plane with the connecting balls and are formed by radially outwards sinking from the inner surface of the first connecting rod; when connecting portion were rotatory, it was rotatory to drive the connection ball to the buckle pole is rotatory and compression spring, and when the elastic rod level, the buckle pole also rotated to horizontal position and pushed into the recess under the effort of spring, accomplished the operation of buckle, made the fixed more firm of elastic rod position.

Furthermore, be equipped with the accepting groove on the connection ball, the accepting groove is just right when rotatory to the level along with the connection ball the recess to drive the bayonet socket pole and get into the recess. The spring is accommodated in the accommodating groove, and one end of the spring is fixedly connected with the side face of the accommodating groove; one end of the buckle rod is accommodated in the accommodating groove and is fixedly connected with the other end of the spring, the other end of the buckle rod abuts against the inner surface of the first connecting rod and is in sliding contact with the inner surface of the first connecting rod, so that the end part of the buckle rod can slide on the inner wall of the first connecting rod, and the spring is in a compressed state before installation, namely when an included angle between the elastic rod and the first connecting rod and an included angle between the elastic rod and the second connecting rod are acute angles; when the connecting ball rotates in the axial plane of the balloon and is vertical to the axial plane, namely, when the connecting ball is horizontal, namely, an included angle between the elastic rod and the first connecting rod and an included angle between the elastic rod and the second connecting rod are right angles, the accommodating groove can be opposite to the groove, at the moment, under the thrust action of the spring, the end part of the clamping rod, which abuts against the inner wall of the first connecting rod, can be accommodated in the groove, and at the moment, the clamping rod plays a role of clamping and is convenient for fixing the connecting ball so as to fix the elastic rod.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, the elastic rods which are arranged on the first connecting rod and the second connecting rod and can rotate with the first connecting rod and the second connecting rod are arranged, so that before use, the elastic rods form acute angles with the first connecting rod and the second connecting rod, the occupied volume of the elastic rods is reduced, the elastic rods are convenient to install in blood vessels, and the operation is simple; before use, the first magnet adsorbs the fourth magnet, so that the first connecting rod and the second connecting rod can be tightly abutted against the balloon, the increase of the occupied space caused by the mutual separation of the first connecting rod and the second connecting rod is prevented, and the smooth installation in a blood vessel is ensured; after installation, the elastic rod is driven by the balloon to drive the second connecting rod, so that the elastic rod is right-angled with the first connecting rod and the second connecting rod, radial expansion is facilitated, meanwhile, the arrangement of the connecting ball, the spring and the buckle rod can enable the buckle rod to be buckled in the groove, the positions of the connecting ball and the elastic rod are conveniently fixed, and the stability of the structure of the connecting ball and the elastic rod is guaranteed; and after the installation, first magnet and third magnet position are relative and mutual repulsion, and second magnet and fourth magnet position are relative and mutual repulsion, have guaranteed the thrust between head rod and the second connecting rod for keep suitable distance between the two, can not appear the phenomenon that the deformation appears after long-time appearing like traditional mesh grid, and the structure is firm, is fit for using for a long time.

Drawings

FIG. 1 is a schematic structural view of a balloon catheter stent of the present invention prior to expansion;

FIG. 2 is an enlarged partial view of a portion of the balloon catheter stent of the present invention shown in FIG. 1;

FIG. 3 is an enlarged partial view of the area A of the balloon catheter stent of the present invention shown in FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B' of the balloon catheter stent of FIG. 2 according to the present invention;

FIG. 5 is a schematic view of the balloon catheter stent of the present invention shown in FIG. 2, taken in the direction of the arrows;

FIG. 6 is a schematic expanded view of the balloon catheter stent of FIG. 1;

fig. 7 is a cross-sectional view taken along the direction C-C' of the balloon catheter stent of fig. 6 according to the present invention.

In the figure, the catheter 1, the balloon 2, the stent body 3, the first connecting rod 31, the first magnet 311, the second magnet 312, the groove 313, the second connecting rod 32, the third magnet 321, the fourth magnet 322, the elastic rod 33, the connecting part 331, the snap rod 34, the spring 35, the connecting ball 36, the accommodating groove 361, the connecting tube 4 and the interface 5 are shown.

Detailed Description

The balloon catheter stent of the invention will be described in detail and fully with reference to the accompanying drawings.