Patent ID: 11883565
Assignee: GYRUS ACMI, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A ureteral stent, comprising:
a body including an inner layer having a first elastic modulus value and an outer layer having a second elastic modulus value, the second elastic modulus value being greater than the first elastic modulus value,
wherein the body is formed from ethylene-vinyl acetate and:
a mixture of barium sulfate, bismuth subcarbonate, bismuth oxychloride,
a polyolefin elastomer and a thermoplastics elastomer, and
wherein the ethylene-vinyl acetate is in an amount of 9% to 30% by weight, and the mixture of a polyolefin elastomer and a thermoplastics elastomer are in an amount of 45% to 90% by weight
wherein the ureteral stent has a transitional elastic modulus along an axial direction ranging from 0.5 cm to 40 cm of a total length of the ureteral stent being up to about 40 cm.