Ectopic implantation valved stent system for treating tricuspid regurgitation

A stent system and tricuspid valve technology, applied in stents, heart valves, medical science, etc., can solve the problem of high risk of stents with valves falling off, and achieve the effects of difficult valve displacement, simple operation, and low compliance

Active Publication Date: 2016-11-09
SHANGHAI HANYU MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some animal experiments have successfully completed transcatheter orthotopic tricuspid valve implantation for the treatment of TR, this method has a high risk of falling off the valve stent and has not been applied clinically.

Method used

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  • Ectopic implantation valved stent system for treating tricuspid regurgitation
  • Ectopic implantation valved stent system for treating tricuspid regurgitation
  • Ectopic implantation valved stent system for treating tricuspid regurgitation

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Embodiment Construction

[0030] Such as figure 2 and image 3 Shown is a schematic structural view of the first form of a preferred embodiment of the present invention.

[0031] The ectopically implanted valve stent system for treating tricuspid regurgitation includes a stent 1 , an artificial valve 2 and a covering film 3 . Wherein, the support 1 is cylindrical and tubular, and has a grid structure, such as figure 1 The mesh shape of the grid shown is rhombus. The shape of the mesh is not unique, and any shape that can meet the requirements of blood circulation and contraction and expansion is feasible.

[0032] From figure 2 As can be seen in Fig. 1, the artificial valve 2 is sewn inside the stent 1 axially perpendicular to the stent to form a cross-section. The artificial valve has three semilunar sinus-shaped valves whose edges can be completely closed. From figure 1 It can be seen that the covering membrane 3 covers the outer surface of the 1 / 3 height from the upper end of the stent 1 to ...

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Abstract

The invention discloses an ectopic implantation valved stent system for treating tricuspid regurgitation. The system comprises a stent, an artificial valve and a cover membrane, wherein the stent is in the shape of a cylindrical tube and provided with a grid structure, the artificial valve is sewn in the stent perpendicular to the axial direction of the stent, and the cover membrane covers at least part of the peripheral surface of the stent. The system is a valve system implanted through femoral vein. After the system is implanted in precava and/or postcava, the situation that tricuspid valve regurgitates into atrium, and then blood flows back to vena cava can be avoided, and then tricuspid regurgitation is treated. The stent system has the advantages that operation is easy, manufacturing process is simple and mature, and safety performance is high.

Description

technical field [0001] The invention relates to a valve stent system for treating tricuspid valve regurgitation, in particular to a valve stent system for treating tricuspid valve regurgitation which is percutaneously heterotopically implanted. Background technique [0002] Tricuspid regurgitation (TR) is a common heart disease. Severe TR can lead to a decrease in cardiac output and systemic circulation congestion, which is a signal of poor prognosis in many heart diseases and is closely related to the prognosis of patients. Surgery is currently the most important treatment for TR, but it has the disadvantages of large trauma, many complications, and high mortality. Therefore, based on the limitations of current surgical operations, it is necessary to find a TR treatment method with less trauma, easy operation, and fewer complications. [0003] With the advancement of biomedical materials and the development of medical imaging, breakthroughs have been made in transcatheter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24A61F2/90A61F2/844
CPCA61F2/2412A61F2/2469A61F2/844A61F2/90A61F2210/0014A61F2210/0057A61F2250/0065
Inventor 周达新潘文志程蕾蕾葛均波
Owner SHANGHAI HANYU MEDICAL TECH CO LTD
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