Surgery – Instruments – Obstetric or gynecological instruments
Patent
1997-05-09
1999-08-10
Dawson, Glenn K.
Surgery
Instruments
Obstetric or gynecological instruments
606122, 606119, A61B 1742
Patent
active
059351365
ABSTRACT:
The obstetrical vacuum extractor includes a vacuum cup molded of a first, relatively rigid material, with a lip of a second, relatively soft material secured along the basal opening. An elongated hollow stem which may be coupled to a vacuum source communicates with the interior and, accordingly, the basal opening of the vacuum cup. The first, relatively rigid material of the cup is preferably substantially transparent so that the physician may readily monitor the condition of the fetal scalp throughout delivery.
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O'Grady et al., "Vacuum Extraction in Modern Obstetric Practice," pp. 13-21 (The Parthenon Publishin Group, Inc., New York, NY 1995).
Hulse Jerry Dwayne
Wright William Henry
Dawson Glenn K.
Pristech, Inc.
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