Minimally invasive upper and lower vena cava and coronary sinus drainage catheter

Abstract

The invention discloses a minimally invasive upper and lower vena cava and coronary sinus drainage catheter, which comprises a vein drainage pipeline with a heparin coating and a coronary sinus blocking balloon; side holes of two areas are formed in the vein drainage pipeline; furthermore, the side holes of the two areas are located in the mirror surface position of an upper cavity and the mirror surface position of a lower cavity respectively to achieve the effect of fully draining blood; the vein drainage pipeline located in the upper vena cava position and the vein drainage pipeline located in the lower vena cava position are sleeved with an upper cavity blocking balloon and a lower cavity blocking balloon respectively; the vein drainage pipeline located in the middle of an upper vena cava blocking balloon and a lower vena cava blocking balloon is connected with a side pipe; the side pipe is sleeved with the coronary sinus blocking balloon; the upper cavity blocking balloon, the lower cavity blocking balloon and the coronary sinus blocking balloon are all connected with one-way valves to achieve inflation of injected gas; and the minimally invasive upper and lower vena cava and coronary sinus drainage catheter has the following technical features that: the number of intubations and the time of suture separation can be reduced; additional exploration and hemostasis are not needed; the operation space and efficiency are effectively increased; and the clear view can be ensured.

Description

technical field [0001] The invention relates to a drainage catheter, more specifically, to a minimally invasive superior and inferior vena cava and coronary sinus drainage catheter, which belongs to the field of medical devices. Background technique [0002] Traditional cardiac surgery requires thoracotomy to establish extracorporeal circulation. The effective establishment of extracorporeal circulation can ensure sufficient exposure of cardiac structures and myocardial protection, and is an indispensable basic technique for cardiac surgery. Conventional extracorporeal circulation is usually established by cannulation of the ascending aorta and the cannulation of the superior and inferior vena cava. To ensure a clear view of the right atrium, to ensure the normal operation. [0003] With the development of technology, minimally invasive small incision cardiac surgery is gradually accepted by surgeons. Minimally invasive surgery is usually performed through small right chest...

AI Technical Summary

Problems solved by technology

Establishing extracorporeal circulation through the peripheral femoral artery and vein is currently relatively mature intubation technology, but in surgical practice we found that since the femoral vein cannulation is usually located in the inferior vena cava, additional intubation and separation and blockage of the superior vena cava are still required , which not only increases the time of operation, but also increases the difficulty of operation for the limited space of incision exposure

Secondly, in the process of right atrium surgery, transfemoral venous drainage often fills the field of vision with blood due to coronary sinus backflow blood, which increases the difficulty of the operation and prolongs the operation time

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