Lung puncture needle fixing device

Abstract

The invention relates to the technical field of medical instruments, and discloses a pulmonary puncture needle fixing device which comprises a mounting plate, an insertion plate is inserted into the mounting plate, a push handle is arranged at the top end of the insertion plate, a connecting block is fixedly connected to the bottom end of the insertion plate, and a puncture needle is arranged at the bottom of the connecting block; when an inserting plate and a connecting block just start to move downwards, the connecting block can gradually push a pushing block to move inwards through a hinge rod, at the moment, a first spring is gradually compressed, and therefore through resistance of the first spring, the puncture needle can move slowly before puncture, and sufficient confirmation time is given to a doctor; when the connecting block is pushed to the position below the push block, the first spring is instantly converted into a deformation recovery state from a compressed state, so that the push block can be rapidly ejected out, the push block is rapidly ejected out, the connecting block and the puncture needle can rapidly move downwards, the body surface skin of a patient is instantly punctured with large force, and the puncture effect is good. Therefore, puncture position deviation caused by skin resilience is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a lung puncture needle fixing device. Background technique [0002] Pulmonary puncture is a needle puncture into the lung through the chest wall and the visceral layer of the pleural cavity. Aspiration of pus in some poorly drained cavities, and injection of drugs if necessary to achieve the purpose of treatment; [0003] When lung puncture is performed, the best puncture point, needle depth and angle of the lesion are first determined by CT scan, and then the mechanical arm is controlled to move the puncture needle to the designated position, and finally the puncture needle is used for puncture work; however, in actual puncture We found that when the needle tip of the puncture needle just pierces the skin, due to the elasticity of the skin tissue, the skin will have a large rebound at the moment of piercing. This rebound will not only affect the puncture accuracy of t...

AI Technical Summary

Problems solved by technology

[0003] When lung puncture is performed, the best puncture point, needle depth and angle of the lesion are first determined by CT scan, and then the mechanical arm is controlled to move the puncture needle to the designated position, and finally the puncture needle is used for puncture work; however, in actual puncture We found that when the needle tip of the puncture needle just pierces the skin, due to the elasticity of the skin tissue, the skin will have a large rebound at the moment of piercing. This rebound will not only affect the puncture accuracy of the puncture needle, At the same time, it will also bring certain security risks;

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