Pulse type positive-pressure single hand clamp remaining needle

Abstract

The invention relates to a pulse type positive-pressure single hand clamp remaining needle. The pulse type positive-pressure single hand clamp remaining needle comprises a sleeve base, an extension tube, a pulse type positive-pressure single hand clamp and a tee joint, wherein one end of the extension tube is connected with a side branch tube of the sleeve base, and the other end of the extension base is connected with the tee joint; the pulse type positive-pressure single hand clamp is located on the extension tube; through holes are formed in the front part and the rear part of the pulse type positive-pressure single hand clamp, the middle part of the pulse type positive-pressure single hand clamp is provided with a tube sealing clamping piece and a clamping base, and a press and touch part between the tube sealing clamping piece and the clamping base is provided with at least two cross beam type convex parts. According to the pulse type positive-pressure single hand clamp remaining needle disclosed by the invention, because the pulse type positive-pressure single hand clamp is adopted, the tube sealing clamping piece of the pulse type positive-pressure single hand clamp is enabled to be closely attached to the clamping base so as to clamp the extension tube, pulse type positive pressure which is generated by sequentially pressing the extension tube downwards by utilizing the at least two cross beam type convex parts is used for extruding liquid in a tube to enter the extension tube, the positive pressure of tube sealing liquid is increased, and blood return and tube blocking phenomena are greatly reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a pulse type positive pressure single-hand clamping indwelling needle. Background technique [0002] The intravenous indwelling needle is a medical device used for indwelling intravenous infusion, which mainly includes an indwelling needle sleeve, a three-way sleeve seat, and a puncture needle tube. A hemostatic sealing plug is also arranged in the tube seat, and the puncture needle tube is tightly inserted through the sealing plug and the needle tube, and is located in the cannula of the indwelling needle, and the three-way casing seat is laterally connected with other infusion pipeline joints. After the medical personnel use intravenous indwelling to puncture the patient's venous blood vessels, they pull out the puncture needle tube from the back end of the cannula seat and the indwelling needle sleeve, and place the softer sleeve part in the patient's venous blood vessel, and pa...

AI Technical Summary

Problems solved by technology

However, the flow limiting clamp of the above-mentioned invention patent cannot form a pulsed liquid flow, and cannot play the role of flushing the extension tube.

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