Double J tube (pig tail catheter), introduction and technical indicators This project uses absorbable thermoplastic elastomer to manufacture ureteral stent tube, replaces the non-absorbable stent tube commonly used in clinical practice, avoids secondary surgery to pull out, and relieves the pain of patients is this project Innovation in the field of urological surgery.
1. Soft and high elasticity: material tensile strength>15MPa, elongation at break>300 percent .
2. Biosafety: non-toxic, biosafety.
