Tube sealing injection device avoiding venous indwelling needle blockage

Abstract

The invention relates to a tube sealing injection device avoiding venous indwelling needle blockage. The tube sealing injection device comprises an injection needle head with a connecting hose, a hollow tube body and a hollow piston-like structure, a nipple structure is arranged at one end of the hollow tube body, an internal thread is arranged on the inner surface of the hollow tube body, accurate volume scales are uniformly formed on the outer surface of the hollow tube body at intervals, an accurate external thread is arranged on the outer surface of the piston-like structure, the nipple structure and the other end of the connecting hose are hermetically and coaxially mounted together in a communicated manner, and the hollow tube body and the piston-like structure are coaxially mounted together by thread engagement. Liquid advance speed can be effectively controlled by the thread structure, stable and low advance speed is beneficial to effective tube sealing and blockage prevention, liquid medicines can be effectively prevented from seeping from the hollow tube body, operation difference of staff can be decreased, and the problems of untight tube sealing, tube blockage and the like caused by operation difference of the staff can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and relates to a medical equipment, in particular to an injection device that reduces the workload of personnel, reduces the difference in personnel operation, and effectively reduces the probability of blockage of intravenous indwelling needle sealing tubes. Background technique [0002] In recent years, the technology of venous indwelling needles has been continuously developed, and has been widely used in clinics due to its simple operation, soft cannula, long indwelling time in the vein and not easy to puncture blood vessels; at present, it has become the main tool for clinical infusion therapy . However, with the use of venous indwelling needles, complications such as phlebitis and short indwelling time of catheter blockage are increasing, and problems such as increased rate of catheter blockage due to differences in personnel operations have emerged one after another. For this re...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the problems of personnel operation differences, cross-contamination, and drug waste when medical staff use ordinary syringes to seal the venous indwelling needles, and provide a medical device that avoids personnel operation differences and can preload drugs with clinically required concentrations. A sealing injection device for avoiding venous indwelling needle blockage. The injection device is designed according to the clinical experience of venous indwelling needle sealing. The risk of cross-contamination and drug waste, etc., has excellent characteristics such as convenient use, enhanced tube sealing effect, and reduced personnel differences.

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