Bead blanket type ventricular septal perforation progressive repair patch

Abstract

The invention relates to the technical field of acute myocardial infarction ventricular septal defect, and provides a bead blanket type ventricular septal perforation progressive repair patch which comprises a repair patch body arranged in a ventricular septal perforation, a supporting framework and a net-shaped plugging piece arranged on the supporting framework; the net-shaped plugging piece comprises a grid part and a plurality of plugging parts arranged on the grid part at intervals, a plurality of grid holes are formed in the grid part at intervals, and the plugging parts expand after set time to plug the grid holes. The plugging part on the grid part can be expanded, so that temporary partial plugging is realized after the repair sheet body is arranged in the interventricular septum through hole, which is beneficial for gradually improving obviously deteriorated hemodynamics, and excessive pressure is not formed on tissues at the edge of the repair sheet body, so that fragile tissues are prevented from being damaged; and after tissue edema fades and forms a firm scar, the volume is gradually increased until the grid holes are completely blocked along with the gradual expansion of the blocking part, so that the complete blocking effect is achieved, and the treatment effect of the acute myocardial infarction ventricular septal perforation is improved.

Description

technical field [0001] The invention relates to the technical field of acute myocardial infarction ventricular septal defect repair, in particular to a progressive patch for bead carpet perforation of ventricular septum. Background technique [0002] Ventricular septal perforation after acute myocardial infarction is caused by acute ischemia, cardiac necrosis or ventricular septal perforation, and the sudden appearance of secondary defect causes severe hemodynamic disturbance, surrounded by fragile cardiac tissue that is necrotic or edematous due to ischemia. Early treatment is found, but the condition is exacerbated by hemodynamic disturbances, especially the fragile necrotic tissue around the defect, which cannot be treated early regardless of surgical and medical interventions. Complete defect closure is ideal, but traditional devices Complete occlusion will concentrate the strong blood flow impact at the junction of the occluder and necrotic tissue, resulting in further ...

AI Technical Summary

Problems solved by technology

[0002] Ventricular septal perforation after acute myocardial infarction is caused by acute ischemia, cardiac necrosis or ventricular septal perforation, and the sudden appearance of secondary defect causes severe hemodynamic disturbance, surrounded by fragile cardiac tissue that is necrotic or edematous due to ischemia. Early treatment is found, but the condition is exacerbated by hemodynamic disturbances, especially the fragile necrotic tissue around the defect, which cannot be treated early regardless of surgical and medical interventions. Complete defect closure is ideal, but traditional devices Complete occlusion will concentrate the powerful blood flow impact at the junction of the occluder and necrotic tissue, resulting in further damage to the fragile tissue that cannot be fixed and edema

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