A novel Y-Z magnetic totally implantable venous access port based on the magnetic anchor technique

A totally implantable venous access port (TIVAP) is a commonly used intravenous infusion device for patients receiving chemotherapy or long-term infusion therapy. To improve the success rate of one-time insertion of the Huber needle, we developed a novel Y-Z magnetic TIVAP (Y-Z MTIVAP), which we produced using three-dimensional printing technology. The Y-Z MTIVAP includes a magnetic port body and a magnetic positioning device. For testing, we established four venous port implantation models using the two types of TIVAPs and two implantation depth ranges (≤ 5 mm and > 5 mm). Twenty nurses performed Huber needle puncture with the four models, and we recorded the number of attempts required for successful needle insertion, the operation time, and the operator’s satisfaction. The success rate for one-time needle insertion with the Y-Z MTIVAP was significantly higher than that with the traditional TIVAP at either depth range (100% vs 75% at ≤ 5 mm, p  = 0.047; 95% vs 35% at > 5 mm, p   5 mm, p  = 0.025), but the success rate with the Y-Z MTIVAP was not significantly affected (100% vs 98%, p  = 1.000). The operation time with the Y-Z MTIVAP was significantly shorter than that with the traditional TIVAP at either depth range (both p  < 0.001), and 90% of operators reported that the Y-Z MTIVAP was superior to the traditional TIVAP. In conclusion, Y-Z MTIVAP was associated with a significantly improved puncture success rate and shortened operation time, and thus, has important clinical application value.