Fluid suction equipment for controlling suction pressure, medical equipment and blood vessel suction method

Abstract

The invention provides fluid suction equipment for controlling suction pressure, medical equipment and a blood vessel suction method. A suction pump is connected with a suction pipeline and used for providing pulse pressure to suck fluid; a fluid flow velocity, pressure or flow sensor is arranged in the suction pump, the suction pipeline or any position where the fluid flows between the suction pump and the suction pipeline, and the fluid flow velocity, pressure or flow sensor is electrically connected with a controller of the suction pump; resistance in the suction pipeline is obtained according to results detected by the fluid flow velocity, pressure or flow sensor; and the suction efficiency of the suction pump is improved when detecting that resistance increase exceeds a preset value. By means of the fluid suction equipment for controlling the suction pressure, the medical equipment and the blood vessel suction method, pipeline resistance and changes of the pipeline resistance can be continuously measured in real time in the suction process, the optimal suction pressure is controlled, the suction efficiency is improved, the blood loss amount is reduced, and the suction safety is improved.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a fluid suction equipment for controlling suction pressure, a medical equipment and a blood vessel suction method. Background technique [0002] Thrombosis is a common clinical disease. The main hazards of thrombus are 1) thrombus blocks the vascular cavity, causing the distal blood return to be blocked; 2) thrombus falls off and causes serious hazards such as pulmonary embolism, cerebral embolism and myocardial infarction. Thrombus aspiration is a method of sending the catheter to the thrombus under negative pressure to directly suck the thrombus into the catheter and remove the thrombus. The advantages of catheter intervention for thrombus aspiration are (1) minimally invasive. Patients with high-risk embolism are critically ill and often cannot tolerate traditional open surgery. Relatively speaking, interventional therapy is performed through catheter suction under local ane...

AI Technical Summary

Problems solved by technology

During pulmonary embolism aspiration surgery, if the blood loss exceeds 300-350ml, the aspiration operation can only be stopped; there are also clinical reports that the increase in blood loss leads to a decrease in hemoglobin concentration, which increases the incidence of clinical adverse events in aspiration surgery. Lower than normal indicates poor prognosis and is a risk factor for short-term mortality in patients with acute pulmonary embolism

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