Rotating-type anti-thrombus indwelling needle

Abstract

The invention relates to the technical field of medical instruments and apparatuses, and especially refers to a rotating-type anti-thrombus indwelling needle. The indwelling needle includes a three-way liquid guiding base, the three-way liquid guiding base is internally provided with a conveying tube, a heparin cap is installed on the three-way liquid guiding base, an outlet end of the conveying tube is connected with an infusion tube, and the tail end of the infusion tube is connected with a catheter base; the heparin cap is provided with a positive pressure tube for generating positive pressure on the conveying tube, and the positive pressure tube is sleeved with the conveying pipe and communicated with the conveying tube and abuts against the conveying tube in a sliding mode; the outerwall of the three-way liquid guiding base is provided with an outer thread matched with the heparin cap, the inner wall of the heparin cap is provided with an inner thread in threaded connection withthe outer thread, and the heparin cap is rotatably connected with the three-way liquid guiding base; an adjustable flow clamp is installed between the three-way liquid guiding base and the catheter base and arranged on the infusion tube. The rotating-type anti-thrombus indwelling needle is simple in structure and reasonable in design, and the formation of thrombus can be prevented by rotating theheparin cap to generate the positive pressure.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a rotating antithrombotic indwelling needle. Background technique [0002] During infusion, it is often necessary to indwell the human body for infusion. The use of indwelling needles can reduce the pain caused by repeated venipuncture and the fear of injections, reduce the anxiety of parents, and facilitate clinical medication; After the infusion needle is pulled out, there will be a period of drug liquid reflux after the indwelling needle is pulled out of the catheter hub, and blood reflux often occurs, forming a thrombus and affecting the next infusion; therefore, it is necessary to provide a method that can prevent the formation of Indwelling needle for thrombus. Contents of the invention [0003] Aiming at the problems in the prior art, the present invention provides a rotary antithrombotic indwelling needle, which has a simple structure and reasonable design, a...

AI Technical Summary

Problems solved by technology

[0002] During infusion, it is often necessary to indwell the human body for infusion. The use of indwelling needles can reduce the pain caused by repeated venipuncture and the fear of injections, reduce the anxiety of parents, and facilitate clinical medication; After the infusion needle is pulled out, there will be a period of drug liquid reflux after the indwelling needle is pulled out of the catheter hub, and blood reflux often occurs, forming a thrombus and affecting the next infusion; therefore, it is necessary to provide a method that can prevent the formation of Indwelling needle for thrombus

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