Surgery – Instruments – Obstetric or gynecological instruments
Patent
1997-06-05
1998-09-22
Buiz, Michael Powell
Surgery
Instruments
Obstetric or gynecological instruments
606122, 606149, A61B 1742
Patent
active
058108408
ABSTRACT:
A vacuum extractor for extracting a fetus from a birth canal during childbirth is provided. The vacuum extractor includes a cup, a substantially rigid stem, and a handle. The cup is provided with a flexible closed top end to enable the stem to be selectively moved from an operational position wherein the stem extends from the closed top end of the cup in substantial axial alignment with a vertical axis of the cup to an insertion position wherein the stem is angularly disposed relative to the vertical axis of the cup and a portion of the stem is recessed into the flexible closed top end of the cup to permit insertion of the cup into the birth canal. The handle has a first end, a second end, and a passageway extending therethrough from the first end to the second end. The handle is connected to the stem such that the first and second ends of the handle extend substantially laterally from the stem and the passageway of the handle in fluid communication with the vacuum cup. The first end of the handle is adapted to be connected to a vacuum source, and the second end is adapted to receive a vacuum release valve.
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"Soft-cup vacuum extractors safely assist normal deliveries," Frank R. Witter, MD, Contemporary OB/GYN, not dated, pp. 3-8.
"Instrumental delivery in the 1990s: a commentary," David Acker, MD, Contemporary OB/GYN, .COPYRGT.1985 and 1990, pp. 9-10.
Buiz Michael Powell
Woo Julian W.
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