The invention belongs to the technical field of medical devices, and mainly relates to a left ventricular drainage tube with the functions of pressure measurement and negative pressure stabilization, including a drainage tube body and a negative pressure connection port of a cardiopulmonary bypass machine located at one end of the drainage tube body, through which a hose control hard core is inserted, and a control hard core insertion switch is arranged at the end of the hose control hard core. The utility model is characterized in that a thin negative pressure regulating tube is arranged on the side wall of the main body of the drainage tube, a side hole A is connected between the main body of the drainage tube and the negative pressure regulating tube, and a negative pressure stabilizing flow opening and closing device is arranged at the end of the negative pressure regulating tube; when the operation begins, the negative pressure stabilizing flow device is closed to prevent blood loss caused by blood flowing out of the negative pressure regulating tube in vitro; and when the operation is carried out, the cardiopulmonary bypass machine is connected. The main body of the drainage tube is sucked under negative pressure, and the normal air pressure is introduced into the body by the drainage negative pressure regulating tube to ensure smooth drainage. After cardiac resuscitation, blood is prevented from flowing out of the negative pressure regulating tube and blood loss is caused.
【技术实现步骤摘要】
一种具有测压及负压稳流功能的左心引流管
本专利技术属于医疗器械
,主要涉及一种具有测压及负压稳流功能的左心引流管。
技术介绍
在心血管外科手术中会用到较多的插管,左心引流管是这些插管中的一种。它的作用主要有以下三点:第一、左心减压。在体外循环的过程中,通过左心引流管可以减少左心内的压力,避免左室膨胀造成损害。第二、保持手术视野的清晰。在心脏直视手术的过程中,一直会有血液通过肺静脉回流到左心房,如果不对这些血液进行适当的持续吸引,会让手术视野充满血液,变得模糊。左心减压可以使外科医生在比较清晰的手术视野中不受阻碍地进行手术。第三、肺保护。若左心内的回血不能被适当地吸走,则左心内的压力增加,会使肺内血管的压力相应的增加,时间过长就会引起肺组织的水肿,造成并发症,如灌注肺等。为了在使用左心引流管时不损伤周围的血管及其他组织,现有左心引流管都选择质地较柔软的材料进行制作,左心引流管一般自右肺静脉的起始部置入,由于左心引流管的材质较软,同时加之右肺静脉起始部较深,手术医师的视野差,左心引流管置入不便,增加了潜在的手术风险。常规左心引流管多由透明中空的软管构成主体,前段引流部带有多个侧孔,并且包有或不包防贴壁装置,尾端则与相应的机器管道连接,在心脏停跳前及复跳后,由于心脏内部压力较大,传统的引流管由于操作不当会出现血液回流,造成风险。另外引流管在行负压吸引工作时,目前常规的左心引流管非常容易吸壁,即负压使左心组织贴紧引流管多个引流吸入侧口,致引流不畅,需要断开体外循环机接口,随后再进行连接,大大延长了手术时间,操作繁琐,费时费力。并且手术中如果左心内压力过高会导 ...
【技术保护点】
1.一种具有测压及负压稳流功能的左心引流管,包括引流管本体和位于所述引流管本体一端的体外循环机负压连接口,通过所述体外循环机负压连接口插接有软管控制硬芯,在所述软管控制硬芯的端部设有控制硬芯插拔开关,其特征在于,所述引流管本体侧壁设有较细的负压调节管;所述引流管本体与负压调节管之间设有相通的侧孔A,在负压调节管的末端设有负压稳流开闭装置。
【技术特征摘要】
1.一种具有测压及负压稳流功能的左心引流管,包括引流管本体和位于所述引流管本体一端的体外循环机负压连接口,通过所述体外循环机负压连接口插接有软管控制硬芯,在所述软管控制硬芯的端部设有控制硬芯插拔开关,其特征在于,所述引流管本体侧壁设有较细的负压调节管;所述引流管本体与负压调节管之间设有相通的侧孔A,在负压调节管的末端设有负压稳流开闭装置。2...
【专利技术属性】
技术研发人员:柳克祥,朱志成,朴虎林,王勇,郑晓梅,崔丹,李博,李丹,王天策,
申请(专利权)人:吉林大学,
类型:发明
国别省市:吉林,22
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