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首页> 外国专利> CATHETER FOR SELECTIVE BRONCHIAL ARTERIOGRAPHY WITH A TRANSVENOUS ACCESS THROUGH A DEFECT IN THE INTERVENTRICULAR SEPTUM

CATHETER FOR SELECTIVE BRONCHIAL ARTERIOGRAPHY WITH A TRANSVENOUS ACCESS THROUGH A DEFECT IN THE INTERVENTRICULAR SEPTUM

机译：经房静脉有缺陷的经支气管选择性支气管动脉造影的导管

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FIELD: medicine.;SUBSTANCE: invention relates to the field of medicine, namely to an angiographic bronchial catheter for selective catheterization of the bronchial and intercostal arteries with a transvenous access through a defect in the interventricular septum and a method for performing selective catheterization of the bronchial and intercostal arteries with the transvenous access through the defect in the interventricular septum. Catheter is made in the form of an elastic tube with a first end straight working section, conjugated with a first bend with curved sections of the catheter tube, forming sections of a hyperbola or parabola, depending on a modification of the catheter. Base of the elastic tube is oriented at an angle of 20° to the axis of symmetry of a parabola branch and 20° to the real axis of the hyperbola branch of the working end of the catheter, which form the bends of the tube, repeating the shape of the aortic arch. First section of the catheter has a conical part of 8–10 mm long with atraumatic rounding from the end. Second and third bends are made in the form of elastic forming elements. Method includes performing transvenous endovascular catheterization of the right heart cavities using the angiographic catheter, which is then carried out through the defect in the interventricular septum into a lumen of the ascending thoracic aorta and further into the aortic arch. Through a diagnostic catheter into the lumen of the aortic arch and further into the descending aorta, a hydrophilic atraumatic guide is carried out. Diagnostic catheter is removed, and a bronchial catheter is inserted into the area of the thoracic aortic isthmus through the established hydrophilic atraumatic guide. Guide is removed, the first working section of the catheter, due to its own elasticity, assumes a predetermined shape, whereby it slides off into a desired mouth of the bronchial artery. Then perform selective bronchial arteriography.;EFFECT: decrease in irradiation and the amount of radiopaque substance introduced into the bloodstream.;9 cl, 4 dwg
机译：血管造影支气管导管及其选择方法技术领域本发明涉及医学领域，即涉及一种通过支气管中隔缺损经静脉通路选择性地插入支气管和肋间动脉的血管造影支气管导管及其选择性导管插入的方法。支气管和肋间动脉通过室间隔缺损经静脉进入。导管以具有第一端笔直工作部分的弹性管的形式制成，该导管与导管的弯曲部分的第一弯曲部共轭，根据导管的变型形成双曲线或抛物线的部分。弹性管的底部与抛物线分支的对称轴成20°角，与导管工作端的双曲线分支的实轴成20°角，形成管的弯曲，重复主动脉弓的形状。导管的第一部分的圆锥形部分长8–10 mm，末端无损伤。第二和第三弯曲以弹性成形元件的形式制成。该方法包括使用血管造影导管对右心腔进行静脉内血管导管插入术，然后通过心室间隔中的缺损将其插入升主动脉主动脉管腔并进一步进入主动脉弓。通过诊断导管进入主动脉弓腔并进一步进入降主动脉，进行了亲水性无创伤导管。移除诊断导管，并通过已建立的亲水性无创伤导管将支气管导管插入胸主动脉峡部区域。去除导管，导管的第一工作部分由于其自身的弹性而具有预定的形状，从而滑入所需的支气管动脉口中。然后进行选择性支气管动脉造影;效果：减少辐射并减少血液中不透射线物质的含量; 9 cl，4 dwg

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