Left auricle plugging device

Abstract

The invention discloses a left auricle plugging device. The device comprises a plugging part, a connecting part and a fixing part. The plugging part is connected with the fixing part through the connecting part. The plugging part comprises a plugging supporting cage and a plugging film covering the plugging supporting cage. The plugging supporting cage is provided with a plurality of elastic openends in a circumferential direction. The elastic open ends protrude out of the plugging supporting cage and support the plugging film. The deformation resistance of the elastic open ends is 0.25 to 0.75 time that of the plugging supporting cage. The invention provides the left auricle plugging device. The framework of the plugging part comprises the plugging supporting cage with large deformationresistance and the elastic open ends with small deformation resistance. In this way, for left auricle openings with different specific shapes, the elastic open ends achieve certain adaptability through deformation. In the final plugging process, the cross sections of the plugging part and the plugging film may be special-shaped instead of circular due to deformation of the elastic open ends.

Description

technical field [0001] The invention relates to heart surgery technology, in particular to a left atrial appendage occluder. Background technique [0002] It is well known that left atrial appendage occlusion is a relatively effective treatment for preventing left atrial appendage thromboembolism, which can reduce the risk of fatal bleeding events in patients with non-valvular atrial fibrillation who are contraindicated in anticoagulant therapy or anticoagulant therapy. Left atrial appendage occlusion is the operation of using a left atrial appendage occluder to block the opening of the left atrial appendage. [0003] In order to adapt to left atrial appendages of different sizes, the left atrial appendage occluders in the prior art include multiple models of different sizes, such as an invention patent entitled "A Left Atrial Appendage Occluder" with the authorized announcement number CN206414310U, It limits the radial dimension of the occlusion part to 14-34 mm, so as to ...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the existing technology is that the left atrial appendages of different patients are not only different in size, but also have different specific shapes, and the shape is irregular. However, on the one hand, the current left atrial appendage occluder cannot be customized based on the actual situation, on the other hand , even if it can be customized, the left atrial appendage occluder cannot be rotated during the operation to strictly match the actual shape of the opening of the left atrial appendage. The large inner plug-type occlusion structure is used to open the opening of the left atrial appendage to achieve occlusion. For example, the authorized announcement number is CN205729436U, and the invention patent named "Left Atrial Appendage Occluder" provides an inner plug-type occlusion structure; the second is to use a plug-type plugging structure to completely block the opening of the left atrial appendage on the outside of the opening. For example, the authorized announcement number is CN102805654B, and the invention patent named "Left Atrial Appendage Occluder" provides a plug disc. Type of plugging structure

[0005] In a word, obviously, the two kinds of left atrial appendage occluders in the prior art do not make adaptive deformation according to the specific shape of the opening of the left atrial appendage

Images