Vacuum Extraction

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Vacuum Extraction


an obstetrical operation for extraction of the fetus with a special apparatus—the vacuum extractor.

Vacuum extraction entered obstetrical practice after construction of apparatus by V. Finderle (1952, Yugoslavia) and T. Malmström (1954, Sweden). In the USSR original vacuum extractors were proposed by K. V. Chachava and P. D. Vashakidze (1957) and A. I. Petchenko and I. P. Demichev (1957). The vacuum extractor consists of a set of small metallic cups (or a rubber cap) of varying sizes joined by a rubber tube to a vacuum apparatus. Removal of the fetus by vacuum extraction is achieved by the exhaustion of air (vacuum), which is done with a special syringe or electrosuction. Vacuum extraction is used when there is weak labor that threatens intrauterine asphyxiation of the fetus and in other cases. Vacuum extractors are also used to stimulate labor.


Chachava, K. V. Vakuum-ekstraktor v akusherstve . Tbilisi, 1962.


References in periodicals archive ?
Instrumental deliveries were found to be safer than caesarean section and vacuum extraction as they needed less expertise and had fewer chances of maternal morbidity.
Comparison of maternal and infant outcome between vacuum extraction and forceps deliveries.
Over time, Mr Flanagan has found that virtually any work-piece that can be pulled through a spindle can be unloaded successfully using vacuum extraction.
Priver probably completed residency about the same time I did (1978), when every resident was expected to be proficient in low and mid forceps (and although never sanctioned, some high forceps), Piper forceps, and vacuum extraction.
Physicians used forceps in 84% of the low-risk deliveries and vacuum extraction in 62% of the deliveries.
The heated sealing drums do not require change-over for different container designs and the new surplus film vacuum extraction gives the potential to reduce film wastage by up to 60% over conventional profile cutting systems and eliminates the need for trim rewind.
Subgaleal hematoma; subaponeurotic hemorrhage; hematoma; infant, newborn; vacuum extraction, obstetrical; disseminated intravascular coagulation.
Operational data indicates that the vacuum extraction system is limiting the liquid and vapour plumes to the confines of the RUBiS site.
While the rate of complications caused by vacuum extraction of the fetal head at cesarean is not known, injuries have been reported.
The line consists of three machines with 17,000-watts of steam production power, Daimer[R]'s ATIS[R] anti bacterial architecture, integrated vacuum extraction and three different power configurations.
Installing and operating a vacuum extraction system to remove VOCs from the soils;
Instrument delivery after attempted vacuum extraction was associated with a significantly increased risk for asymptomatic subdural hematoma in one group of term newborns, Dr.