Puncture needle of oocyte collector

Abstract

The invention relates to a puncture needle of an oocyte collector, which comprises a needle tube, wherein a needle point is formed on the front end face of the needle tube, an ultrasonic identification grain is formed on the outer wall of the front end of the needle tube and comprises a plurality of annular grooves which are sequentially arranged along the axle wire of the needle tube and are mutually in parallel; and a chamfer is formed between the outer wall of the front end of the needle tube and the front end face of the needle tube and is positioned on two sides of the needle point. By adopting the ultrasonic identification grain and the needle point provided in the invention, the sharpness of the needle point when the follicular wall is repeatedly punctured for picking up ovums is maximally ensured, and the problems of failure, deformation or barbs cannot be caused; and meanwhile, the resistance of the needle point when the follicular wall is repeatedly punctured for picking up ovums is maximally reduced, the tissue trauma is maximally reduced, the pain of a patient is decreased, and even the problems of haemorrhage and the like on a punctured part can be well avoided.

Description

[0001] technical field [0002] The invention relates to a medical device, in particular to a puncture needle of an oocyte collector. [0003] Background technique [0004] With the rapid development of assisted reproductive technology, IVF technology is increasingly favored by many infertile couples with its high-end technical support and rigorous scientific procedures. The increasing number of infertility patients has put forward higher requirements for the operation accuracy of egg retrieval surgery. The current common method is to use an oocyte harvester to collect eggs through vaginal puncture under the guidance of ultrasound. After multiple punctures of different follicle walls to retrieve eggs, the needle tip is likely to become blunt or deformed or produce barbs, and cause defects such as poor positioning accuracy of ultrasound, high puncture resistance, poor surface finish and roughness, etc. Bring inconvenience, also can bring pain to patient, cause problems suc...

AI Technical Summary

Problems solved by technology

The current general method is to use an oocyte harvester to collect eggs through vaginal puncture under the guidance of ultrasound. After multiple punctures of different follicle walls to retrieve eggs, the needle tip is likely to become blunt or deformed or produce barbs, which will cause defects such as poor positioning accuracy of ultrasound, high puncture resistance, poor surface finish and roughness, etc. It brings inconvenience and pain to patients, and it is easy to cause bleeding at the puncture site and other problems

The structural factors of the puncture needle in the prior art include: 1. The structure of the needle tip is thin and unreasonable; 2. The ultrasonic recognition pattern is generally a mesh-shaped or point-shaped pattern

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