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Safe hemodialysis remaining needle

A technology of indwelling needles and hemodialysis, which is applied in the field of medical supplies to achieve the effect of avoiding needle stabs

Pending Publication Date: 2021-12-21
ZHEJIANG KINDLY MEDICAL DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, indwelling needles for dialysis are disposable items and will be recycled after use.

Method used

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  • Safe hemodialysis remaining needle
  • Safe hemodialysis remaining needle
  • Safe hemodialysis remaining needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035]The safe hemodialysis indwelling needle of the present invention includes a needle tube assembly 1, a catheter assembly 2 and a needle tip shielding assembly 3. The needle tube assembly 1 includes a hemodialysis needle tube 101 and a needle holder 102, and the rear end of the hemodialysis needle tube 101 is fixedly arranged on the needle holder 102; The catheter assembly 2 includes a catheter 201 and a catheter adapter 202, the rear end of the catheter 201 is fixed on the catheter adapter 202, the center of the catheter assembly 2 is provided with an axial needle channel 203, and the needle tip shield assembly 3 is provided with The needle tip shielding assembly 3 is connected to the rear end of the catheter assembly 2 and forms a detachable connection with the catheter assembly 2 so that it can be separated and pulled out together with the needle tube assembly 1 after the puncture is completed. The needle passing channel is coaxially connected with the needle tube channe...

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Abstract

The invention discloses a safe hemodialysis remaining needle. The safe hemodialysis remaining needle comprises a hemodialysis needle tube assembly, a catheter assembly and a needle tip shielding assembly, a needle head containing cavity, a needle passing channel and a limiting mechanism for limiting a needle head in the needle head containing cavity are arranged in the needle tip shielding assembly, a needle tip of a hemodialysis needle tube is prevented from being pulled out of the needle tip shielding assembly, a magnet containing cavity is further formed in the needle passing channel, and a first fixed magnet and a movable magnet are arranged in the magnet containing cavity. In the initial state, the movable magnet is located outside the needle passing channel, and in the protection state, the movable magnet is located in the needle passing channel and seals the needle tip of the hemodialysis needle tube in the needle head containing cavity through the attraction force between the first fixed magnet and the movable magnet, and therefore shielding of the needle tip is achieved, and injury and secondary cross infection caused by the fact that people are stabbed by the needle head in the garbage treatment or recovery treatment process are avoided.

Description

technical field [0001] The invention relates to a medical product, in particular to a safe hemodialysis indwelling needle. Background technique [0002] Because the indwelling needle can relieve the patient's pain caused by repeated punctures, protect blood vessels, reduce fluid extravasation, reduce the workload of nurses, allow patients to move freely, and improve the quality of life of patients. The venous indwelling needle keeps an open venous access for the patient, provides convenience for blood transfusion and infusion, and is conducive to the development of rescue work. Inspired by the use of indwelling needles, indwelling needles for dialysis are gradually emerging among hemodialysis patients. However, indwelling needles for dialysis are disposable items and will be recycled after use. In order to avoid needle stab wounds during garbage disposal or recycling, resulting in secondary cross-infection, existing hemodialysis indwelling needles are required to be attach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/16
CPCA61M1/16A61M2202/0413A61M2202/0021
Inventor 张谦张勇陈洪王文岳陈栩项鑫霖
Owner ZHEJIANG KINDLY MEDICAL DEVICES
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