intrauterine device

device /de·vice/ (dĭvīs´) something contrived for a specific purpose.

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biventricular assist device  (BVAD) a ventricular assist device with the combined functions of both left and right ventricular assist devices.

contraceptive device  one used to prevent conception, such as a barrier contraceptive, an intrauterine device, or a means of preventing ovulation (e.g., birth control pill).

intrauterine device  (IUD) a plastic or metallic device inserted in the uterus to prevent pregnancy.

ventricular assist device  (VAD) a circulatory support device that augments the function of the left ventricle, the right ventricle, or both, by providing mechanically assisted pulsatile blood flow.

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intrauterine device

n.

Abbr. IUD A birth control device, such as a plastic or metallic loop, ring, or spiral, that is inserted into the uterus to prevent implantation of a fertilized egg in the uterine lining.

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Intrauterine device (IUD)

Contraceptive device consisting of a piece of bent plastic or metal that is inserted through the vagina into the uterus

Mentioned in: Emergency Contraception, Transvaginal Ultrasound

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intrauterine device (IUD)

Etymology: L, intra + uterus, womb; Fr, devise

a contraceptive device, consisting of a bent strip of radiopaque plastic with a fine monofilament tail. The addition of copper wire and/or bands increases the effectiveness. Progesterone-filled IUDs are also available. The mechanism of action is not known. Insertion into the cervix is performed during or just after menstruation when the cervix is slightly open and menstruation assures that a pregnancy does not exist. The tail string of the IUD is left projecting a few centimeters from the cervix. By feeling the string with her finger at least once each menstrual cycle the wearer can be sure the device is in place. The string also provides a hold for removing the IUD. The rate of failure for the IUD method of contraception is approximately one to five unplanned pregnancies in 100 women using the device for 1 year. IUDs can cause complications; the most serious is pelvic inflammatory disease. When such infections occur in pregnancy, they may be overwhelming and lethal; therefore the IUD is removed if pregnancy is suspected. Some other complications are cervicitis, perforation of the uterus, salpingitis that causes sterility, ectopic pregnancy, abortion, embedding of the device in the wall of the uterus, endometritis, bleeding, pain, cramping, undetected expulsion, and irritation of the penis. Also called

Usage notes: (informal)

coil, intrauterine contraceptive device,

Usage notes: (informal)

loop.