An obstetric procedure to facilitate the delivery of a baby. It may be used if the second stage of labour (see childbirth) is prolonged, if the mother becomes exhausted, or if the baby shows signs of fetal distress. Vacuum suction techniques are also used to perform early abortions.
The vacuum extraction instrument consists of a suction cup connected to a vacuum bottle. The suction cup is placed on the baby’s head in the birth canal, and the vacuum machine sucks the baby’s scalp into the cup. The obstetrician draws the baby out of the mother’s vagina by gently pulling on the cup with each uterine contraction.
The baby is born with a swelling on the scalp, but this disappears after a few days, usually without treatment.
surgical removal of a cataract from the eye. In extracapsular cataract extraction the cataract alone is removed, leaving the lens capsule behind. Intracapsular cataract extraction is the removal of the whole lens, including the capsule that surrounds it.... cataract extraction
n. 1. the surgical removal of a part of the body. Extraction of teeth is usually achieved by applying *elevators and extraction *forceps to the crown or root of the tooth to dislocate it from its socket. When this is not possible, for example because the tooth or root is deeply buried within the bone, extraction is performed surgically by removing bone and, where necessary, dividing the tooth. 2. the act of pulling out a baby from the body of its mother during childbirth.... extraction
the removal by suction of the products of conception to terminate a pregnancy or evacuate the uterus following miscarriage. Carried out under local anaesthetic up to the 12th week of pregnancy, it uses a hand-held syringe (manual vacuum aspiration, MVA) or an electric pump (electric vacuum aspiration, EVA) to create suction.... vacuum aspiration
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