Myocardial protection liquid perfusion device

Abstract

The invention discloses a myocardial protection liquid perfusion method. A myocardial protection liquid perfusion device comprises a liquid storage chamber and an infusion chamber, wherein the liquidstorage chamber comprises a bag shell, an air bag, a bent pipeline and a filtering sieve plate; the air bag is arranged below the bag shell; the bent pipeline is arranged below the air bag; the filtering sieve plate is arranged below a liquid leakage hole of the bent pipeline; a first three-way switch is arranged at the lower end of the infusion chamber; the first three-way switch is connected with a blood drawing tube and a conveying tube; a second three-way switch is arranged at one side, far away from the liquid storage chamber and the infusion chamber, of the conveying tube; the other sideof the second three-way switch is connected with a blood outlet tube and an infusion tube; and the infusion tube can be connected with an upper needle head through a slot. The myocardial protection liquid perfusion device has the beneficial effects that a blood drawing and transfusion integrated function is realized by utilizing the first three-way switch and the second three-way switch; and a constant pressure system is formed by utilizing the air bag and an air chamber, so that heart damage is prevented, and myocardial protection liquid is delivered for assist.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a myocardial protection fluid perfusion device. Background technique [0002] Cardiac surgery routinely needs to perfuse the patient's heart with myocardial protective fluid during open-heart surgery, so that the heart is in a static state of electrical and mechanical activity ("stopping") during the operation of the heart, and the heart is allowed to stop after the operation. Blood flow is restored and the heart resumes beating. Currently, the clinically used myocardial protective solutions can be divided into four types according to the different combinations of matrix fluids and components: simple crystalloid myocardial protective solution, 4:1 blood-containing myocardial protective solution (that is, 4 parts of blood and 1 part of crystalloid mixed solution), del Nido myocardial protective solution, Protective solution (ie, 1 part of blood and 4 parts of crystalloid mixture), ...

AI Technical Summary

Problems solved by technology

In one operation, because the inserted needle needs to deal with blood extraction and myocardial protection solution filling, it is often easy to increase the burden after cardiac resuscitation. At the same time, the needle needs to be plugged in and connected to different pipelines, which will easily make the myocardial protection solution perfusion circuit too complicated and further Affect the judgment of the surgeon

[0003] In the prior art, when the myocardial protection solution is filled, when the filling speed is too fast or too slow, there is no stable system, which will easily cause the flow rate to be too fast or too slow to affect the cardiac resuscitation and the patient's future recovery; at the same time, before the aorta is opened, if When antegrade perfusion of warm blood is required, retrograde suction is required to vent intracardiac gas through the aortic root, the routine procedure is to turn off the perfusion pump, remove the crystalloid line from the pump tank, clamp it, and readjust The pump head is tight, such operation steps are quite cumbersome, and the adjustment methods of different brands of perfusion blood pumps are also different, and the probability of misoperation is high

And when perfusing myocardial protection solution, there are different filling methods for different populations of adults and children, and the filling temperature of different populations is different, and the cardiac stress reaction is likely to occur if the temperature difference is large, so it is suitable for different populations and filling methods. temperature, there is an urgent need for a myocardial protective solution perfusion method that can cope with various groups of people

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