Biodegradable material uterine cavity-intracervical contraceptive device and its placement device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MATERNAL & CHILD HEALTH CARE HOSPITAL OF SHANDONG PROVINCE SHANDONG UNIV
- Publication Date
- 2022-01-14
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Abstract
Description
technical field
[0001] The invention relates to a contraceptive device and its placement device, more precisely, a biodegradable material uterine cavity-intracervical contraceptive device and its placement device. Background technique
[0002] So far, my country has introduced and promoted intrauterine device IUD for 40 years, which has played an extremely important role in controlling the population of our country. Among the currently clinically used contraceptive methods for women, the usage rate of the intrauterine device (IUD) is as high as 50%, and it is widely used because of its advantages of being effective, safe, reversible, convenient, and long-acting. However, most of the currently used IUDs contain bare copper structures. Due to the explosive release (excessive release) of copper ions in bare copper at the initial stage of IUD placement, it is the most important cause of abnormal uterine bleeding, pain and irregular menstruation after IUD placement. In addition...