Heart stent with imaging function

Abstract

The utility model relates to the technical field of heart stents, and discloses a heart stent with a developing function, comprising a plurality of elastic connecting plates, a plurality of elastic connecting plates having connecting blocks fixedly connected at both ends, a plurality of connecting blocks having protrusions fixedly connected at both ends, one of the protrusions having a connecting rod fixedly connected at one end, a round ball fixedly connected at one end of the connecting rod, arc-shaped limiting blocks sleeved between the plurality of connecting blocks and located on the outer surfaces of the protrusions, a plurality of connecting blocks having guides fixedly connected at the outer surfaces of one side, a plurality of guiding members having developing members inside, a plurality of arc-shaped limiting blocks having through grooves inside, and the inner diameter of the through grooves being larger than the outer diameter of the protrusions, a circular groove being opened at the top of another of the protrusions, and the round ball being clamped in the circular groove. The utility model avoids damage to the blood vessels caused by uneven force on the blood vessels, and improves the safety of the heart stent.

Description

Technical Field

[0001] The utility model relates to the technical field of heart stents, in particular to a heart stent with a developing function. Background Art

[0002] Heart stents, also known as coronary artery stents, are commonly used medical devices in cardiac interventional surgery and have the function of clearing arterial blood vessels. The main materials are stainless steel, nickel-titanium alloy or cobalt-chromium alloy. They first appeared in the 1980s and have gone through the development process of metal stents, drug-coated stents, and bioresorbable stents.

[0003] Existing heart stents may become narrow or occluded during long-term use, increasing the difficulty of subsequent treatment and even posing a life-threatening threat. At the same time, when a certain amount of contraction and expansion occurs in the patient's blood vessels, the blood vessels may be damaged. For this reason, we propose a heart stent with development function. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a heart stent with a development function, thereby improving the safety of the heart stent.

[0005] According to the heart stent with developing function proposed by the utility model, it includes several elastic connecting plates, several of which are fixedly connected with connecting blocks at both ends of the elastic connecting plates, and protrusions at both ends of the connecting blocks. One end of one of the protrusions is fixedly connected with a connecting rod, and one end of the connecting rod is fixedly connected with a round ball. Arc-shaped limit blocks are sleeved between several of the connecting blocks and located on the outer surfaces of the protrusions. Several of the outer surfaces of the connecting blocks on one side are fixedly connected with guide pieces, and several of the guide pieces are provided with developing pieces inside.

[0006] Preferably, several of the elastic connecting plates are of wave-shaped structure and are elastic.

[0007] Preferably, a circular groove is formed on the top of another of the protrusions, and the round ball is clamped in the circular groove.

[0008] Preferably, a plurality of the arc-shaped limit blocks are provided with through grooves inside, and the inner diameter of the through grooves is larger than the outer diameter of the protrusions.

[0009] Preferably, both ends of the protrusion are located on both sides of the arc-shaped limit block and are fixedly connected to the circular blocks.

[0010] The beneficial effects of the utility model are as follows: through the wavy structure and elastic characteristics of the elastic connecting plate, force can be applied according to the different thicknesses of the blood vessel wall, thereby avoiding damage to the blood vessel due to uneven force on the blood vessel and improving the safety of the heart stent. At the same time, through the arrangement of connecting blocks, round blocks, convex blocks, through grooves, arc-shaped limit blocks, round beads, and connecting rods, the heart stent can maintain a certain stability when the inner wall of the blood vessel contracts and expands. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the heart stent with development function proposed by the utility model.

[0012] Figure 2 This is a schematic diagram of the structure of several connecting blocks of the heart stent with development function proposed by the utility model.

[0013] Figure 3 This is a schematic cross-sectional structure diagram of the connecting block and the arc-shaped limiting block of the heart stent with a developing function proposed by the utility model.

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the protrusion of the heart stent with development function proposed by the utility model.

[0015] Figure 5 This is a schematic cross-sectional structure diagram of a guide piece of a heart stent with a developing function proposed by the utility model.

[0016] In the figure: 1, elastic connecting plate; 2, connecting block; 201, circular groove; 21, convex block; 22, circular block; 3, round ball; 31, connecting rod; 4, arc-shaped limit block; 401, through groove; 5, guide member; 6, developing member. DETAILED DESCRIPTION

[0017] Reference Figure 1-5 A heart stent with a developing function comprises a plurality of elastic connecting plates 1, both ends of the plurality of elastic connecting plates 1 are fixedly connected with connecting blocks 2, both ends of the connecting blocks 2 are fixedly connected with protrusions 21, one end of one of the protrusions 21 is fixedly connected with a connecting rod 31, one end of the connecting rod 31 is fixedly connected with a round ball 3, arc-shaped limit blocks 4 are sleeved between the plurality of connecting blocks 2 and on the outer surfaces of the protrusions 21, the outer surfaces of a plurality of connecting blocks 2 on one side are fixedly connected with guides 5, a plurality of guides 5 are flexibly arranged, and a developing part 6 is arranged inside the plurality of guides 5.

[0018] Furthermore, the plurality of elastic connecting plates 1 are of a wavy structure and are elastic, and the arc-shaped structure of the elastic connecting plates 1 can apply force according to the different thicknesses of the blood vessel wall.

[0019] Furthermore, a circular groove 201 is formed on the top of another protrusion 21, and the ball 3 is clamped in the circular groove 201. The arrangement of the ball 3 clamped in the circular groove 201 allows the ball 3 to slide slightly along the circular groove 201 while the protrusions 21 at both ends are clamped.

[0020] Furthermore, a plurality of arc-shaped limit blocks 4 are provided with through slots 401 , and the inner diameter of the through slots 401 is larger than the outer diameter of the protrusions 21 , so that the protrusions 21 can slightly shake in the through slots 401 .

[0021] Furthermore, both ends of the protrusion 21 are located on both sides of the arc-shaped limit block 4 and are fixedly connected to the circular blocks 22. The circular blocks 22 can prevent the arc-shaped limit block 4 from deviating and can play a role in limiting.

[0022] When the device is used, the heart stent is disinfected and other preoperative treatments are performed. When placing the vascular stent, first, the unexpanded balloon is inserted into the stent, and then the heart stent is placed at the lesion using the balloon. After the heart stent is placed, the balloon is inflated to expand, so that the elastic connecting plate 1 can be gradually expanded by the balloon expansion, and the arc-shaped structure of the elastic connecting plate 1 can apply force according to the different thicknesses of the blood vessel wall. At the same time, when the inner wall of the blood vessel has a certain degree of contraction and expansion so that the inner wall of the blood vessel contacts the connecting block 2, the connecting block 2 will drive the protrusion 21 to shake along the through groove 401, and the round ball 3 can slide slightly along the inner surface of the round groove 201, so that the heart stent has better stability in the blood vessel. At the same time, the guide 5 guides the developing member 6, and then the position of the developing member 6 can be observed through ultrasonic imaging.

Claims

1. A heart stent with a developing function, comprising a plurality of elastic connecting plates (1), characterized in that: Both ends of several of the elastic connecting plates (1) are fixedly connected to connecting blocks (2), both ends of the connecting blocks (2) are fixedly connected to protrusions (21), one end of one of the protrusions (21) is fixedly connected to a connecting rod (31), one end of the connecting rod (31) is fixedly connected to a round ball (3), arc-shaped limit blocks (4) are sleeved between several of the connecting blocks (2) and located on the outer surface of the protrusions (21), and the outer surfaces of several of the connecting blocks (2) on one side are fixedly connected to guides (5), and several of the guides (5) are provided with developing parts (6) inside.

2. The cardiac stent with development function according to claim 1, characterized in that: The plurality of elastic connecting plates (1) are of a wave-shaped structure and are elastic.

3. The cardiac stent with development function according to claim 1, characterized in that: A circular groove (201) is formed on the top of another of the protrusions (21), and the round ball (3) is clamped in the circular groove (201).

4. The cardiac stent with development function according to claim 1, characterized in that: A through slot (401) is formed inside each of the arc-shaped limit blocks (4), and the inner diameter of the through slot (401) is larger than the outer diameter of the protrusion (21).

5. The cardiac stent with development function according to claim 1, characterized in that: Both ends of the protrusion (21) are located on both sides of the arc-shaped limiting block (4) and are fixedly connected to the circular block (22).

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