CN112869921B - A vascular expandable device - Google Patents

Abstract

The invention discloses a blood vessel expandable device which comprises a supporting balloon, a supporting ring, a baffle ring and telescopic rods, wherein one end of the supporting balloon is connected with a connecting air pipe, the supporting ring is arranged on the inner side of the supporting balloon, the three telescopic rods are arranged on the inner side of the supporting ring, the telescopic rods are connected to supporting rods, the supporting rods are connected to one ends of flexible rods, an inflation cavity is arranged in each flexible rod, one end of the inflation cavity and one end of the connecting air pipe are both connected with an inflation balloon, the supporting cavity is arranged in the supporting balloon, the baffle ring is formed in the supporting cavity, and the baffle ring is arranged at one end of the baffle ring. The invention utilizes the matching of the baffle ring and the baffle ring in the supporting saccule to lead the supporting saccule to carry out stage bulging support and improve the control effect, and utilizes the matching of the supporting ring and the telescopic rod and the supporting rod to lead the supporting saccule to be effectively supported at the position with most resistance, thereby effectively expanding the blood vessel.

Description

A vascular expandable device

technical field

The present invention relates to the field of vascular treatment, in particular to a vascular expandable device.

Background technique

An aneurysm is an abnormal bulge or bulge of a blood vessel caused by weakening of the blood vessel wall due to disease, injury, or a congenital abnormality. Aneurysms have thin, weak walls and have a tendency to rupture, which can lead to stroke, death, disability, and more. A method of treating an aneurysm includes inserting a flow diverting stent or braid into a parent vessel that includes the aneurysm to be treated. Such stents or braids can be inserted into a blood vessel in a collapsed state, positioned next to the neck of the aneurysm, and expanded into apposition to the vessel wall. If the stent or braid has a sufficiently low porosity, the stent or braid can act to prevent blood flow through the device and into the aneurysm to induce isolation of the aneurysm.

Most of the current vascular expansion devices are all-in-one expansion mechanisms, which cannot be expanded in stages. In some parts with complicated blood vessels, the thickness of the blood vessel wall is too large, and the support force at the center of the balloon is often too small, causing interruptions. Expansion or inability to hold up effectively.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a blood vessel expandable device in order to solve the above problems.

The present invention realizes above-mentioned purpose through following technical scheme:

A blood vessel expandable device includes a support balloon, a support ring, a blocking ring, and a telescopic rod, one end of the support balloon is connected with a connecting trachea, a support ring is arranged inside the support balloon, and three parts are arranged inside the support ring. each of the telescopic rods, the telescopic rod is connected to a support rod, the support rod is connected to one end of the flexible rod, an inflatable cavity is arranged inside the flexible rod, and one end of the inflatable cavity and one end of the connecting trachea are connected with In the air bag, a support cavity is arranged inside the support balloon, the baffle ring is formed in the inside of the support cavity, and a baffle ring is arranged at one end of the baffle ring.

Preferably, the support balloon, the connecting trachea, the support cavity, the blocking ring, and the blocking ring are integrally formed.

In this way, the support balloon plays a supporting role, and at the same time cooperates with the baffle ring and the baffle ring inside, so that the support balloon can be swollen and supported in sequence.

Preferably, the baffle ring is in close contact with the baffle ring, the baffle ring has a rectangular cross-section, and the baffle ring has an L-shaped cross-section.

In this way, the cross-section of the baffle ring is L-shaped, so that it can cooperate with the support ring on the inner side for effective support, so that during inflation, the baffle ring is closed in stages, so that between the previous baffle rings After the support cavity is filled with gas, the lower part of the support cavity is then inflated.

Preferably, the support ring is slidably connected to the inner side of the support balloon.

In this configuration, the support ring supports the baffle ring and provides support for the support balloon as a whole.

Preferably, the telescopic rod is slidably connected to the support rod, and the support rod has a hollow structure inside and communicates with the inflatable cavity.

In this arrangement, the telescopic rod and the support rod provide support for the support ring.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The baffle ring and the baffle ring inside the support balloon are used to cooperate, so that the support balloon can be swollen and supported in stages to improve the control effect;

2. Use the support ring to cooperate with the telescopic rod and the support rod, so that the support balloon can be effectively supported in the parts with large resistance, so as to effectively expand the blood vessels.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a vascular expandable device according to the present invention;

2 is a schematic diagram of the internal structure of a vascular expandable device according to the present invention;

3 is a schematic diagram of the internal structure of a support balloon of a vascular expandable device according to the present invention;

4 is a schematic structural diagram of a blocking ring of a vascular expandable device according to the present invention;

FIG. 5 is a schematic structural diagram of a telescopic rod of a blood vessel expandable device according to the present invention.

The reference numerals are explained as follows:

1. Support balloon; 2. Connect trachea; 3. Inflatable bag; 4. Flexible rod; 5. Support ring; 6. Support cavity; 7. Blocking ring; 8. Blocking ring; 9. Telescopic rod; 10. Support rod ; 11. Inflatable cavity.

Detailed ways

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The present invention will be further described below in conjunction with the accompanying drawings:

Example 1

As shown in Figures 1-5, a blood vessel expandable device includes a support balloon 1, a support ring 5, a blocking ring 7, and a telescopic rod 9. One end of the support balloon 1 is connected with a connecting trachea 2, and the inner side of the support balloon 1 is connected A support ring 5 is provided, and three telescopic rods 9 are arranged inside the support ring 5. The telescopic rods 9 are connected to the support rod 10, and the support rod 10 is connected to one end of the flexible rod 4. The flexible rod 4 is provided with an inflatable cavity 11. The inflatable cavity 11 One end and one end of the connecting trachea 2 are connected with an inflatable bag 3 , a support cavity 6 is arranged inside the support balloon 1 , a blocking ring 7 is formed inside the support cavity 6 , and one end of the blocking ring 7 is provided with a blocking ring 8 .

Preferably: the support balloon 1, the connecting trachea 2, the support cavity 6, the blocking ring 7, and the blocking ring 8 are integrally formed, the supporting balloon 1 plays a supporting role, and at the same time cooperates with the internal blocking ring 7 and blocking ring 8, so that the supporting balloon 1. It can be supported in sequence; the blocking ring 7 and the blocking ring 8 are close to each other, and the blocking ring 7 has a rectangular section, the blocking ring 8 has an L-shaped section, and the blocking ring 8 has an L-shaped section, so that it can cooperate with the inner support ring 5. Effective support, so that when inflating, the baffle ring 7 is closed in stages, so that the support cavity 6 between the previous baffle rings 7 is filled with gas, and then the lower part of the support cavity 6 is inflated; the support ring 5 is slidably connected On the inner side of the support balloon 1, the support ring 5 supports the baffle ring 8 and provides support for the support balloon 1 as a whole; the telescopic rod 9 is slidably connected to the support rod 10, and the interior of the support rod 10 is a hollow structure and communicates with the inflatable cavity 11, The telescopic rod 9 and the support rod 10 provide support for the support ring 5 .

Working principle: move the uninflated support balloon 1 to the inner side of the blood vessel that needs to be expanded. At this time, move the support ring 5 to the front end, and the support ring 5 provides the support force for the resistance ring 8. At this time, by connecting the trachea 2 to the The interior of the support cavity 6 is inflated, and the foremost baffle ring 7 is inflated to make the support cavity 6 bulge, and because the baffle ring 8 at the rear end is supported by the support ring 5, the gas will not be backward, then the support ring 5 is moved to the back. When the rear end moves, the frontmost baffle ring 8 loses its support, and the gas travels to the rear end, then the entire support balloon 1 bulges up in stages. The inside is inflated, and the support rod 10 pushes out the telescopic rod 9 and the support ring 5, so that the expansion part is more supported.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Various changes and modifications fall within the scope of the claimed invention.

Claims (2)

1. A blood vessel expandable device, characterized in that it comprises a support balloon (1), a support ring (5), a blocking ring (7), and a telescopic rod (9), and one end of the support balloon (1) is connected with a A trachea (2) is connected, a support ring (5) is provided on the inner side of the support balloon (1), and three telescopic rods (9) are provided on the inner side of the support ring (5), and the telescopic rods (9) are connected On the support rod (10), the support rod (10) is connected to one end of the flexible rod (4), the flexible rod (4) is provided with an inflatable cavity (11), and one end of the inflatable cavity (11) is connected to the other end of the flexible rod (4). One end of the connecting trachea (2) is connected with an inflatable bag, a support cavity (6) is provided inside the support balloon (1), and the baffle ring (7) is formed inside the support cavity (6). One end of the baffle ring (7) is provided with a baffle ring (8), the baffle ring (7) and the baffle ring (8) are in close contact, and the baffle ring (7) has a rectangular cross-section, and the baffle ring (8) ) has an L-shaped cross section, the support ring (5) is slidably connected to the inner side of the support balloon (1), the telescopic rod (9) is slidably connected to the support rod (10), and the support rod (10) is slidably connected to the support rod (10). ) has a hollow structure inside and communicates with the gas-filled cavity (11). The vascular expandable device according to claim 1, characterized in that: the support balloon (1), the connecting trachea (2), the support cavity (6), the blocking ring ( 7) The resistance ring (8) is integrally formed.

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