A kind of PICC indwelling tube continuous liquid supply anti-clogging device and liquid supply method thereof

Abstract

The invention relates to the field of transfusion, in particular to a continuous liquid supply anti-blocking device for a picc indwelling tube and a liquid supply method thereof. An anti-clogging device for continuous liquid supply of a picc indwelling tube, characterized in that it includes a liquid supply pipe joint assembly, a positive pressure chamber assembly and a picc indwelling pipe joint assembly connected in sequence, wherein the liquid supply pipe joint assembly is used to connect with a liquid supply catheter , the liquid supply pipe joint assembly includes a one-way mouth valve; the liquid supply pipe joint assembly is arranged on one side of the positive pressure chamber assembly, and the positive pressure chamber (7) of the positive pressure chamber assembly and the liquid inlet channel of the liquid supply pipe joint assembly pass through a single It is connected to the mouth valve; the picc indwelling pipe joint assembly is arranged on the other side of the positive pressure chamber assembly, opposite to the liquid supply pipe joint assembly, and the liquid inlet channel of the picc indwelling pipe joint assembly is connected with the positive pressure chamber, which can be used for picc indwelling The tube continues to supply fluid and prevents backflow of blood from clogging the indwelling tube.

Description

technical field [0001] The invention relates to the field of transfusion, in particular to a continuous liquid supply anti-blocking device for a picc indwelling tube and a liquid supply method thereof. Background technique [0002] PICC is the abbreviation of peripherally punctured central venous catheter. In order to protect the blood vessels in the patient's arm and inject chemotherapy drugs safely, the doctor extends the catheter from the vein in the patient's arm directly to the large vein close to the heart. During the intermission period of treatment, most cancer chemotherapy patients will go home for recuperation. They have varying degrees of anxiety about the indwelling tubes they carry, and worry about complications caused by improper care after returning home, such as blood return causing blockage of the indwelling tube, indwelling tube Blood clots that form in the bloodstream can travel into the bloodstream and form a thrombus, causing more serious health problems...

AI Technical Summary

Problems solved by technology

During the intermission period of treatment, most cancer chemotherapy patients will go home for recuperation. They have different degrees of anxiety about the indwelling tubes they carry, and worry about complications caused by improper care after returning home, such as blood return causing indwelling tube blockage, indwelling tube A blood clot that forms in the bloodstream enters the bloodstream and forms a thrombus that can cause more serious health problems or be life-threatening

[0003] The problem of indwelling tube anti-blocking needs to be solved urgently. For example, the patent with publication number CN104127934A discloses a kind of indwelling tube catheter conversion infusion set, which includes an infusion set and a positive pressure set for anti-thrombosis. The switching component can realize the switching of the liquid path between the normal dose infusion and the buffer infusion, but the structure and operation of the switching liquid path are complicated; the patent with the publication number CN103861205A discloses a blood return preventing venous indwelling needle, which includes a positive pressure chamber, Components such as buffer valves and joints, the drive device of the positive pressure chamber is a spring and other components, which can prevent blood backflow to a certain extent, but the pressure release speed of the spring and other components is uncontrollable, and the existence of the buffer valve cannot completely overcome the pressure caused by the inflow of liquid. The problem of inhomogeneity. Generally, patients who use picc indwelling tube technology are relatively weak in physical condition, and have poor tolerance to unstable infusion speed. To a certain extent, it cannot meet the needs of patients.

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