ABSTRACT
Left ventricular aneurysm (LVA) is a common complication of myocardial infarction. Traditional medical and surgical treatments are not effective or require high doctors' operational skills and patients' physical fitness. With the development of minimally invasive medical devices, it becomes possible for revivent TC system to treat LVA and reconstruct the left ventricle. This study introduces an existing product and its defect when used. From the perspective of clinical needs, we propose a new design of revivent TC system which realizes accurate force measurement and simplifies surgery.
Subject(s)
Humans , Cardiac Surgical Procedures , Heart Aneurysm , Heart Ventricles , Myocardial InfarctionABSTRACT
Atrial fibrillation (AF) is one of the most common arrhythmia in clinic. Left atrial appendage closure is a new technique developed to block the left atrial appendage by minimally invasive intervention in patients with atrial fibrillation, it can help patients who are not applicable or tolerable to the long-term anticoagulation. This paper introduced the common classification of left atrial appendage, summarized and analyzed the limitation of existing left atrial appendage closure. Based on the perspective of clinical needs, it put forward the initial design idea of left atrial appendage closure and designed a new type of left atrial appendage closure. Corresponding animal experiment verified the safety and effectiveness of new left atrial appendage closure.
ABSTRACT
Objective Color-coded digital substraction angiography (CC-DSA) was based on DSA and takes image postprocessing via corresponding software (iFlow or Angioviz).It can observe the change of datas,which will be used to analysis the hemodynamics.CC-DSA has advantages of high temporal and spatal resolution.Meanwhile it spends less time and dose not increase the quantity of contrast-medium and X-ray.The application of CC-DSA in recent years were reviewed in this paper.