Round IUD

Alternative Name: MCR-165, Medicated Contraceptive Ring-165

Description: The MCR-165 is a modern version of the stainless steel products used in China from the 1960s through the 1990s. It is a ring-shaped IUD made of stainless steel and coiled wire with copper segments and silicone-rubber/indomethacin (5 mg) in the lumen of the coil. It is available in four sizes on the diameter: 19mm, 20mm, 21mm, and 22mm. It is a string-less product.

Product Details

User: Female

Hormonal: No

Delivery Method: Intrauterine

Duration Type: Long-acting

Dose: 165 mm2

Active Pharmaceutical Ingredient (API):
  • copper
  • indomethacin

Inactive material: stainless steel; silicone; rubber

Multipurpose Preventive Technology (MPT): No

Status Details

Developer: Shanghai Medical Suture Needle Factory

Project Phase: Limited Market Availability

Development Stage: Marketed

Active Development: Yes

Status Details:
  • Marketed in China.

Additional Information

  • Manufacturer website:

  • Zhuang L, Yang B, Yuan H. Medicated stainless steel ring-165, medicated gamma-intrauterine devices and TCu220C: a multicenter comparative study. Zhonghua fu chan ke za zhi. 1997;32(2):97-101. Epub 1997/02/01.

Vertical Tabs