Novel cardiac valve implantation instrument with anchoring device

Abstract

The invention relates to a novel cardiac valve implantation instrument with an anchoring device. The novel cardiac valve implantation instrument comprises a cardiac valve prosthesis, at least two sets of anchoring needles and at least two sets of anchoring needle releasing devices detachably connected with the cardiac valve prosthesis. The far ends of the anchoring needles are in preset shapes, the anchoring needle releasing devices comprise conveying pipes, push rods and hollow guide rails, the guide rails are arranged in the conveying pipes in advance and can move towards the far ends of the conveying pipes, rigid sections are arranged at the far ends of the guide rails, the anchoring needles are arranged in the guide rails in advance in an extension state, the push rods are arranged in the conveying pipes and located at the near ends of the anchoring needles, the far ends of the anchoring needle releasing devices are in preset shapes, the far ends of the conveying pipes can be overall bent or partially bent, the guide rails and the anchoring needles can move towards the far ends of the conveying pipes under the action of external force, and the cardiac valve prosthesis is fixedly arranged between the autologous tissue and the anti-falling ends of the anchoring needles. The novel cardiac valve implantation instrument can achieve accurate locating and firm anchoring, and the treatment success rate is improved.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a novel heart valve implantation device with an anchoring device. Background technique [0002] Aortic stenosis (AS), pulmonary stenosis (Pulmonary stenosis), tricuspid valve and mitral valve insufficiency are one of the most common heart diseases, and patients with mitral valve insufficiency currently have about 2 million ~ 2.5 million people suffer from mitral valve regurgitation, and the number of patients is expected to increase to about 4.8 million in 2030, while the incidence rate in China is about 0.5% to 2%. For mitral valve insufficiency, in the United States and western developed countries, mucus degenerative lesions account for about 45% to 65%, while rheumatic lesions are still the main cause of mitral valve lesions in many developing countries , accounting for about 80% (Zhang Baoren, Xu Zhiyun, editor-in-chief. Heart valve surgery [M]. People's Health Pub...

AI Technical Summary

Problems solved by technology

The structure in this patent can adapt to the excellent elasticity of heart tissue and improve the success rate of anchoring, but this structure is only suitable for annuloplasty, and only one anchor pin can be released at a time

[0007] The current clinical results show that although the techniques described above have certain effects in the anchoring function and heart valve interventional therapy, there is no ideal heart valve system with an anchoring device that can achieve functional The heart valve prosthesis is accurately positioned and firmly anchored to the site to be treated, while simultaneously adapting to the elastic expansion of the tissue

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