POPLINE Document Number: 075213
Author(s):
Wang FN
Hsu MC
Cheng CM
Su TP
Yeh KA
Lai WH
Hsiung CH
Karow WG
Tsai HD
Source citation:
ADVANCES IN CONTRACEPTIVE DELIVERY SYSTEMS, 1992;8(3):267-76.
Abstract:
IUDs are rigid and heavy thus irritating the endometrium. Their design accounts for many side effects and encourages pelvic infections. IUDs may even facilitate transmission of HIV. Since some health professionals and patients consider some IUDs to be harmful or unacceptable, researchers have worked on developing a newly designed IUD which meets the criteria for and ideal IUD. Some criteria include soft and flexible in nature and inside the uterus, safe, no migration, and light in weight. Taiwanese researchers have developed such an IUD. The silicone skeleton of the Wang SS (soft and safe) Copper 380 and 300 IUDs is bow-shaped with each arm of the bow tapering off from the middle and ending with a small rounded knob. Copper wire (0.31 mm x 380 sq mm or 0.31 mm x 300 sq mm) coils around the holeless vertical stem (3 cm). The monofilament nylon string is fixed in the middle of the stem by an enlarged top. Researchers designed the Wang SS Cu 300 for nulliparous women and the Wang SS Cu 380 for multiparous women. If physicians use a Wang IUD from a sterilized package, they can insert it without wearing sterile gloves. They need to clean the cervix. They must use a single tooth tenaculum to stabilize the uterus and to straighten the uterine axis. After placing the Wang IUD in the inserter, adjusting the flange, and putting the plunger on the inserter, they need to safely introduce the inserter into the uterine cavity to the point where the inserter touches the fundus or the flange touches the cervix. They then must push the plunger to insert the IUD. Insertion should be done immediately after menstruation. Clinicians need to conduct clinical trials to test the safety and effectiveness of the Wang Ss Cu IUDs.
Keywords:
TaiwanIndex page
Research and Development
IUD, Copper Releasing
Silicone
Nylon
Nulliparity
Multiparity
Insertion
IUD, Unmedicated
Polyethylene
Pelvic Infections
HIV Infections
Side Effects
IUD Side Effects
Asia, Eastern
Asia
Developed Countries
Technology
Economic Factors
IUD
Contraceptive Methods
Contraception
Family Planning
Silicon
Inorganic Chemicals
Ingredients and Chemicals
Polymers
Parity
Fertility Measurements
Fertility
Population Dynamics
Demographic Factors
Population
Treatment
Infections
Diseases
Viral Diseases