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Heart stent and heart stent conveying and releasing device

A heart stent and release device technology, applied in the field of medical devices, can solve the problems of low flexibility, complicated operation, large shape of the bifurcated stent, etc., and achieve the effects of complete coverage of lesions, accurate positioning, and precise docking

Inactive Publication Date: 2018-05-04
纳智医疗设备(徐州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, the current bifurcated stents generally have large shape, low flexibility, inconvenient accurate positioning, and complicated operation. The curative effect has not been clinically confirmed, and still needs improvement.

Method used

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  • Heart stent and heart stent conveying and releasing device
  • Heart stent and heart stent conveying and releasing device
  • Heart stent and heart stent conveying and releasing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides a heart stent, please refer to Figure 1 to Figure 4 As shown, the cardiac stent includes a main branch stent 10 and a branch stent 20; both the main branch stent 10 and the branch stent 20 are constructed as hollow tubes with a reticular wall, which can be radially deformed between an expanded state and a compressed state; Wherein, a docking opening 101 is opened on the mesh wall of the main support 10 , and a first main mark 102 and a second main mark 103 are respectively provided on the edge of the docking opening 101 . The branch bracket 20 includes a first end surface 201, the first end surface 201 is inclined relative to the central axis of the branch bracket 20, and the edge of the first end surface 201 is respectively provided with a first sub-mark 202 that cooperates with the first main mark 102 and a second main mark. 103 fits the second submark 203 . The shape of the first end surface 201 of the branch bracket 20 matches the shape of...

Embodiment 2

[0040] This embodiment also provides a delivery and release device for a heart stent, which is used to deliver the heart stent in Example 1, please refer to Figure 5 As shown, the delivery and release device of the cardiac stent: a first delivery mechanism 11 and a second delivery mechanism 21 , wherein the first delivery mechanism 11 cooperates with the main support stent 10 , and the second delivery mechanism 21 cooperates with the branch support 20 . Wherein, the first delivery mechanism 11 includes a first wire guide tube 1101 arranged along the central axis of the main support 10, a second guide wire tube 1102 extending from the first wire guide tube 1101 toward the docking opening 101, for fixing and Expand the first balloon 1103 of the main branch stent 10 , and the first tube head 1105 communicating with the first balloon 1103 through the first airway 1104 .

[0041]The second delivery mechanism 21 includes a third guide wire tube 2101 arranged along the central axis ...

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PUM

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Abstract

The invention relates to the technical field of medical instrument, in particular to a heart stent and a heart stent conveying and releasing device. The heart stent of the invention is suitable for bifurcation lesions and comprises a main stent and a branch stent mating with each other; the main stent is provided with a butt opening, a first end face of the branch stent is inclined, the butt opening and the first end face are marked, and the first end face of the branch stent cooperates with the butt opening of the main stent to perform positioning; the heart stent and the heart stent conveying and releasing device are simple to operate, can cover all lesions, has no excessive metal wires affecting a branch opening, and provides more precise butting. Conveying mechanisms of the main stentand branch stent are provided with a double-guide screw tube, and more accurate positioning is provided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a heart stent and a delivery and release device for the heart stent. Background technique [0002] Coronary heart disease is an important disease that endangers human health today. Coronary artery revascularization, especially coronary artery stent implantation, is an effective method for the treatment of coronary heart disease. At present, there are about 500,000 cases of coronary artery stent implantation in my country every year, of which about 15 % were coronary bifurcation lesions. At present, neither the conventional single stent nor the double stent can solve bifurcation lesions well, and there are problems of one kind or another. [0003] A variety of special bifurcated brackets can be divided into three types according to the structure: side branch open bracket, crest bracket and side branch bracket. A second stent can be placed in the side branch. This type of ...

Claims

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Application Information

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IPC IPC(8): A61F2/06A61F2/856A61F2/954A61F2/958A61F2/915
CPCA61F2/06A61F2/856A61F2/954A61F2/958A61F2002/065A61F2002/91575
Inventor 关洁莹
Owner 纳智医疗设备(徐州)有限公司
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