In recent years, the medical consumables market has driven the development of oocyte retrieval needles used in minimally invasive oocyte retrieval procedures. Product development and standardisation have tested the professionalism of the minimally invasive oocyte retrieval industry. Here we discuss some of the issues that need to be considered in the research and development, design and application of oocyte retrieval needles.

Oocyte retrieval needle material selection: In the application of oocyte retrieval needle in surgery, in order to ensure better targeting accuracy, we need to pay special attention to several points in material selection. 1. Material strength. During surgery, the influence of pressure and puncture stability on material deformation. In general, we use materials with better strength. 2. Material smoothness. The smoothness of the material will effectively reduce the pain during surgery. It is recommended to set it at about Ra0.6. 3. The roughness of the inner surface of the material. The smoothness of the material will determine the egg retrieval surgery and effectively reduce the effect of roughness on the egg sample.

Oocyte retrieval needle cavity: 1. cavity flow influence. Its flow will affect the satisfaction of the surgical specimen. 2. Cavity sealing. To ensure that the sample fluid is not affected, it is necessary to achieve sealing consistency. 3. Cavity cleanliness. Cleanliness has a critical effect on the sample.

Oocyte retrieval puncture blade: The puncture force should be as low as possible and the puncture surface must be smooth without any fringe. In order to achieve accuracy of target direction, designers often grind the blade backwards to achieve the effect of no deviation during targeted advancement and to ensure that the egg retrieval specimen is not affected.